DevVGA-SVGA3d-ogl.cpp@ 53752

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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 53750 2015-01-06 03:52:37Z 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	#define LOG_GROUP LOG_GROUP_DEV_VMSVGA
23	#include <VBox/vmm/pdmdev.h>
24	#include <VBox/version.h>
25	#include <VBox/err.h>
26	#include <VBox/log.h>
27	#include <VBox/vmm/pgm.h>
28
29	#include <iprt/assert.h>
30	#include <iprt/semaphore.h>
31	#include <iprt/uuid.h>
32	#include <iprt/mem.h>
33	#include <iprt/avl.h>
34
35	#include <VBox/VMMDev.h>
36	#include <VBox/VBoxVideo.h>
37	#include <VBox/bioslogo.h>
38
39	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
40	#include "DevVGA.h"
41
42	#include "DevVGA-SVGA.h"
43	#include "DevVGA-SVGA3d.h"
44	#include "vmsvga/svga_reg.h"
45	#include "vmsvga/svga3d_reg.h"
46	#include "vmsvga/svga3d_shaderdefs.h"
47
48	#ifdef RT_OS_WINDOWS
49	# include <GL/gl.h>
50	# include "vmsvga_glext/wglext.h"
51
52	#elif defined(RT_OS_DARWIN)
53	# include <OpenGL/OpenGL.h>
54	# include <OpenGL/gl3.h>
55	# include <OpenGL/gl3ext.h>
56	# define GL_DO_NOT_WARN_IF_MULTI_GL_VERSION_HEADERS_INCLUDED
57	# include <OpenGL/gl.h>
58	# include <OpenGL/glext.h>
59	# include "DevVGA-SVGA3d-cocoa.h"
60	/* work around conflicting definition of GLhandleARB in VMware's glext.h */
61	//#define GL_ARB_shader_objects
62	// HACK
63	typedef void (APIENTRYP PFNGLFOGCOORDPOINTERPROC) (GLenum type, GLsizei stride, const GLvoid *pointer);
64	typedef void (APIENTRYP PFNGLCLIENTACTIVETEXTUREPROC) (GLenum texture);
65	typedef void (APIENTRYP PFNGLGETPROGRAMIVARBPROC) (GLenum target, GLenum pname, GLint *params);
66	# define GL_RGBA_S3TC 0x83A2
67	# define GL_ALPHA8_EXT 0x803c
68	# define GL_LUMINANCE8_EXT 0x8040
69	# define GL_LUMINANCE16_EXT 0x8042
70	# define GL_LUMINANCE4_ALPHA4_EXT 0x8043
71	# define GL_LUMINANCE8_ALPHA8_EXT 0x8045
72	# define GL_INT_2_10_10_10_REV 0x8D9F
73	#else
74	# include <X11/Xlib.h>
75	# include <X11/Xatom.h>
76	# include <GL/gl.h>
77	# include <GL/glx.h>
78	# include <GL/glext.h>
79	//HACK FOR NOW
80	typedef void (APIENTRYP PFNGLCLIENTACTIVETEXTUREPROC) (GLenum texture);
81	#endif
82	#include "vmsvga_glext/glext.h"
83
84	#include "shaderlib/shaderlib.h"
85
86	#include <stdlib.h>
87	#include <math.h>
88	#include <float.h>
89
90	#ifdef VBOX_VMSVGA3D_USE_OPENGL_CORE
91	# define VBOX_D3D9CAPS_ONLY_DEFINES
92	# include "shaderlib/wine/include/d3d9caps.h" /* For some capability constants. */
93	#endif
94
95
96	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
97	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
98	#ifdef RT_OS_DARWIN
99	extern "C" int ExplicitlyLoadVBoxSVGA3DObjC(bool fResolveAllImports, PRTERRINFO pErrInfo);
100	#endif
101
102
103	/*******************************************************************************
104	* Defined Constants And Macros *
105	*******************************************************************************/
106	#ifdef RT_OS_WINDOWS
107	# define OGLGETPROCADDRESS wglGetProcAddress
108
109	#elif defined(RT_OS_DARWIN)
110	# include <dlfcn.h>
111	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
112	/** Resolves an OpenGL symbol. */
113	static void MyNSGLGetProcAddress(const char pszSymbol)
114	{
115	/* Another copy in shaderapi.c. */
116	static void *s_pvImage = NULL;
117	if (s_pvImage == NULL)
118	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
119	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
120	}
121
122	#else
123	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
124	#endif
125
126	/* Invert y-coordinate for OpenGL's bottom left origin. */
127	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->pMipmapLevels[0].size.height - (y_coordinate))
128	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
129
130	#define OPENGL_INVALID_ID 0
131
132	//#define MANUAL_FLIP_SURFACE_DATA
133	/* Enable to render the result of DrawPrimitive in a seperate window. */
134	//#define DEBUG_GFX_WINDOW
135
136	#define VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState) \
137	do { (pState)->idActiveContext = OPENGL_INVALID_ID; } while (0)
138
139	/** @def VMSVGA3D_SET_CURRENT_CONTEXT
140	* Makes sure the @a pContext is the active OpenGL context.
141	* @parm pState The VMSVGA3d state.
142	* @parm pContext The new context.
143	*/
144	#ifdef RT_OS_WINDOWS
145	# define VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext) \
146	if ((pState)->idActiveContext != pContext->id) \
147	{ \
148	BOOL fMakeCurrentRc = wglMakeCurrent((pContext)->hdc, (pContext)->hglrc); \
149	Assert(fMakeCurrentRc == TRUE); \
150	pState->idActiveContext = (pContext)->id; \
151	} else do { } while (0)
152
153	#elif defined(RT_OS_DARWIN)
154	# define VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext) \
155	if ((pState)->idActiveContext != (pContext)->id) \
156	{ \
157	vmsvga3dCocoaViewMakeCurrentContext((pContext)->cocoaView, (pContext)->cocoaContext); \
158	(pState)->idActiveContext = (pContext)->id; \
159	} else do { } while (0)
160	#else
161	# define VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext) \
162	if ((pState)->idActiveContext != (pContext)->id) \
163	{ \
164	Bool fMakeCurrentRc = glXMakeCurrent((pState)->display, \
165	(pContext)->window, \
166	(pContext)->glxContext); \
167	Assert(fMakeCurrentRc == True); \
168	(pState)->idActiveContext = (pContext)->id; \
169	} else do { } while (0)
170	#endif
171
172	/** @def VMSVGA3D_CHECK_LAST_ERROR
173	* Checks that the last OpenGL error code indicates success.
174	*
175	* Will assert and return VERR_INTERNAL_ERROR in strict builds, in other
176	* builds it will do nothing and is a NOOP.
177	*
178	* @parm pState The VMSVGA3d state.
179	* @parm pContext The new context.
180	*
181	* @todo Revamp this to include the OpenGL operation so we can see what went
182	* wrong. Maybe include a few of the first occurances in the release
183	* log of regular builds.
184	*/
185	#ifdef VBOX_STRICT
186	# define VMSVGA3D_CHECK_LAST_ERROR(pState, pContext) do { \
187	Assert((pState)->idActiveContext == (pContext)->id); \
188	(pContext)->lastError = glGetError(); \
189	AssertMsgReturn((pContext)->lastError == GL_NO_ERROR, \
190	("%s (%d): last error 0x%x\n", __FUNCTION__, __LINE__, (pContext)->lastError), \
191	VERR_INTERNAL_ERROR); \
192	} while (0)
193	#else
194	# define VMSVGA3D_CHECK_LAST_ERROR(pState, pContext) do { } while (0)
195	#endif
196
197	/** @def VMSVGA3D_CHECK_LAST_ERROR_WARN
198	* Checks that the last OpenGL error code indicates success.
199	*
200	* Will assert in strict builds, otherwise it's a NOOP.
201	*
202	* @parm pState The VMSVGA3d state.
203	* @parm pContext The new context.
204	*/
205	#ifdef VBOX_STRICT
206	# define VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext) do { \
207	Assert((pState)->idActiveContext == (pContext)->id); \
208	(pContext)->lastError = glGetError(); \
209	AssertMsg((pContext)->lastError == GL_NO_ERROR, ("%s (%d): last error 0x%x\n", __FUNCTION__, __LINE__, (pContext)->lastError)); \
210	} while (0)
211	#else
212	# define VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext) do { } while (0)
213	#endif
214
215
216	/**
217	* Macro wrapping glGetIntegerv for use during initialization.
218	* Uses AssertLogRelMsg.
219	*/
220	#define VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE(a_enmGlValue, a_pDest) \
221	do \
222	{ \
223	glGetIntegerv(a_enmGlValue, a_pDest); \
224	GLenum iGlError = glGetError(); \
225	AssertLogRelMsg(iGlError == GL_NO_ERROR, \
226	("VMSVGA3d: glGetIntegerv(" #a_enmGlValue " (%#x),) -> %#x\n", (int)a_enmGlValue, iGlError)); \
227	} while (0)
228
229	/**
230	* Macro for doing something and then checking for errors during initialization.
231	* Uses AssertLogRelMsg.
232	*/
233	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
234	do \
235	{ \
236	a_Expr; \
237	GLenum iGlError = glGetError(); \
238	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
239	} while (0)
240
241
242	/*******************************************************************************
243	* Structures, Typedefs and Globals. *
244	*******************************************************************************/
245	typedef struct
246	{
247	SVGA3dSize size;
248	uint32_t cbSurface;
249	uint32_t cbSurfacePitch;
250	void *pSurfaceData;
251	bool fDirty;
252	} VMSVGA3DMIPMAPLEVEL, *PVMSVGA3DMIPMAPLEVEL;
253
254	/**
255	* SSM descriptor table for the VMSVGA3DMIPMAPLEVEL structure.
256	*/
257	static SSMFIELD const g_aVMSVGA3DMIPMAPLEVELFields[] =
258	{
259	SSMFIELD_ENTRY( VMSVGA3DMIPMAPLEVEL, size),
260	SSMFIELD_ENTRY( VMSVGA3DMIPMAPLEVEL, cbSurface),
261	SSMFIELD_ENTRY( VMSVGA3DMIPMAPLEVEL, cbSurfacePitch),
262	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DMIPMAPLEVEL, pSurfaceData),
263	SSMFIELD_ENTRY_IGNORE( VMSVGA3DMIPMAPLEVEL, fDirty),
264	SSMFIELD_ENTRY_TERM()
265	};
266
267	typedef struct
268	{
269	uint32_t id;
270	uint32_t idAssociatedContext;
271	uint32_t flags;
272	SVGA3dSurfaceFormat format;
273	GLint internalFormatGL;
274	GLint formatGL;
275	GLint typeGL;
276	union
277	{
278	GLuint texture;
279	GLuint buffer;
280	GLuint renderbuffer;
281	} oglId;
282	SVGA3dSurfaceFace faces[SVGA3D_MAX_SURFACE_FACES];
283	uint32_t cFaces;
284	PVMSVGA3DMIPMAPLEVEL pMipmapLevels;
285	uint32_t multiSampleCount;
286	SVGA3dTextureFilter autogenFilter;
287	uint32_t cbBlock; /* block/pixel size in bytes */
288	/* Dirty state; surface was manually updated. */
289	bool fDirty;
290	} VMSVGA3DSURFACE, *PVMSVGA3DSURFACE;
291
292	/**
293	* SSM descriptor table for the VMSVGA3DSURFACE structure.
294	*/
295	static SSMFIELD const g_aVMSVGA3DSURFACEFields[] =
296	{
297	SSMFIELD_ENTRY( VMSVGA3DSURFACE, id),
298	SSMFIELD_ENTRY( VMSVGA3DSURFACE, idAssociatedContext),
299	SSMFIELD_ENTRY( VMSVGA3DSURFACE, flags),
300	SSMFIELD_ENTRY( VMSVGA3DSURFACE, format),
301	SSMFIELD_ENTRY( VMSVGA3DSURFACE, internalFormatGL),
302	SSMFIELD_ENTRY( VMSVGA3DSURFACE, formatGL),
303	SSMFIELD_ENTRY( VMSVGA3DSURFACE, typeGL),
304	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSURFACE, id),
305	SSMFIELD_ENTRY( VMSVGA3DSURFACE, faces),
306	SSMFIELD_ENTRY( VMSVGA3DSURFACE, cFaces),
307	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSURFACE, pMipmapLevels),
308	SSMFIELD_ENTRY( VMSVGA3DSURFACE, multiSampleCount),
309	SSMFIELD_ENTRY( VMSVGA3DSURFACE, autogenFilter),
310	SSMFIELD_ENTRY( VMSVGA3DSURFACE, cbBlock),
311	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSURFACE, fDirty),
312	SSMFIELD_ENTRY_TERM()
313	};
314
315	typedef struct
316	{
317	uint32_t id;
318	uint32_t cid;
319	SVGA3dShaderType type;
320	uint32_t cbData;
321	void *pShaderProgram;
322	union
323	{
324	void *pVertexShader;
325	void *pPixelShader;
326	} u;
327	} VMSVGA3DSHADER, *PVMSVGA3DSHADER;
328
329	/**
330	* SSM descriptor table for the VMSVGA3DSHADER structure.
331	*/
332	static SSMFIELD const g_aVMSVGA3DSHADERFields[] =
333	{
334	SSMFIELD_ENTRY( VMSVGA3DSHADER, id),
335	SSMFIELD_ENTRY( VMSVGA3DSHADER, cid),
336	SSMFIELD_ENTRY( VMSVGA3DSHADER, type),
337	SSMFIELD_ENTRY( VMSVGA3DSHADER, cbData),
338	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSHADER, pShaderProgram),
339	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSHADER, u.pVertexShader),
340	SSMFIELD_ENTRY_TERM()
341	};
342
343	typedef struct
344	{
345	bool fValid;
346	float matrix[16];
347	} VMSVGATRANSFORMSTATE, *PVMSVGATRANSFORMSTATE;
348
349	typedef struct
350	{
351	bool fValid;
352	SVGA3dMaterial material;
353	} VMSVGAMATERIALSTATE, *PVMSVGAMATERIALSTATE;
354
355	typedef struct
356	{
357	bool fValid;
358	float plane[4];
359	} VMSVGACLIPPLANESTATE, *PVMSVGACLIPPLANESTATE;
360
361	typedef struct
362	{
363	bool fEnabled;
364	bool fValidData;
365	SVGA3dLightData data;
366	} VMSVGALIGHTSTATE, *PVMSVGALIGHTSTATE;
367
368	typedef struct
369	{
370	bool fValid;
371	SVGA3dShaderConstType ctype;
372	uint32_t value[4];
373	} VMSVGASHADERCONST, *PVMSVGASHADERCONST;
374
375	/**
376	* SSM descriptor table for the VMSVGASHADERCONST structure.
377	*/
378	static SSMFIELD const g_aVMSVGASHADERCONSTFields[] =
379	{
380	SSMFIELD_ENTRY( VMSVGASHADERCONST, fValid),
381	SSMFIELD_ENTRY( VMSVGASHADERCONST, ctype),
382	SSMFIELD_ENTRY( VMSVGASHADERCONST, value),
383	SSMFIELD_ENTRY_TERM()
384	};
385
386	#define VMSVGA3D_UPDATE_SCISSORRECT RT_BIT(0)
387	#define VMSVGA3D_UPDATE_ZRANGE RT_BIT(1)
388	#define VMSVGA3D_UPDATE_VIEWPORT RT_BIT(2)
389	#define VMSVGA3D_UPDATE_VERTEXSHADER RT_BIT(3)
390	#define VMSVGA3D_UPDATE_PIXELSHADER RT_BIT(4)
391	#define VMSVGA3D_UPDATE_TRANSFORM RT_BIT(5)
392	#define VMSVGA3D_UPDATE_MATERIAL RT_BIT(6)
393
394	typedef struct
395	{
396	uint32_t id;
397	#ifdef RT_OS_WINDOWS
398	/* Device context of the context window. */
399	HDC hdc;
400	/* OpenGL rendering context handle. */
401	HGLRC hglrc;
402	/* Device context window handle. */
403	HWND hwnd;
404	#elif defined(RT_OS_DARWIN)
405	/* OpenGL rendering context */
406	NativeNSOpenGLContextRef cocoaContext;
407	NativeNSViewRef cocoaView;
408	bool fLegacy;
409	#else
410	/** XGL rendering context handle */
411	GLXContext glxContext;
412	/** Device context window handle */
413	Window window;
414	/** flag whether the window is mapped (=visible) */
415	bool fMapped;
416	#endif
417	/* Framebuffer object associated with this context. */
418	GLuint idFramebuffer;
419	/* Read and draw framebuffer objects for various operations. */
420	GLuint idReadFramebuffer;
421	GLuint idDrawFramebuffer;
422	/* Last GL error recorded. */
423	GLenum lastError;
424
425	/* Current active render target (if any) */
426	uint32_t sidRenderTarget;
427	/* Current selected texture surfaces (if any) */
428	uint32_t aSidActiveTexture[SVGA3D_MAX_TEXTURE_STAGE];
429	/* Per context pixel and vertex shaders. */
430	uint32_t cPixelShaders;
431	PVMSVGA3DSHADER paPixelShader;
432	uint32_t cVertexShaders;
433	PVMSVGA3DSHADER paVertexShader;
434	void *pShaderContext;
435	/* Keep track of the internal state to be able to recreate the context properly (save/restore, window resize). */
436	struct
437	{
438	uint32_t u32UpdateFlags;
439
440	SVGA3dRenderState aRenderState[SVGA3D_RS_MAX];
441	SVGA3dTextureState aTextureState[SVGA3D_MAX_TEXTURE_STAGE][SVGA3D_TS_MAX];
442	VMSVGATRANSFORMSTATE aTransformState[SVGA3D_TRANSFORM_MAX];
443	VMSVGAMATERIALSTATE aMaterial[SVGA3D_FACE_MAX];
444	VMSVGACLIPPLANESTATE aClipPlane[SVGA3D_CLIPPLANE_MAX];
445	VMSVGALIGHTSTATE aLightData[SVGA3D_MAX_LIGHTS];
446
447	uint32_t aRenderTargets[SVGA3D_RT_MAX];
448	SVGA3dRect RectScissor;
449	SVGA3dRect RectViewPort;
450	SVGA3dZRange zRange;
451	uint32_t shidPixel;
452	uint32_t shidVertex;
453
454	uint32_t cPixelShaderConst;
455	PVMSVGASHADERCONST paPixelShaderConst;
456	uint32_t cVertexShaderConst;
457	PVMSVGASHADERCONST paVertexShaderConst;
458	} state;
459	} VMSVGA3DCONTEXT, *PVMSVGA3DCONTEXT;
460
461	/**
462	* SSM descriptor table for the VMSVGA3DCONTEXT structure.
463	*/
464	static SSMFIELD const g_aVMSVGA3DCONTEXTFields[] =
465	{
466	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, id),
467	#ifdef RT_OS_WINDOWS
468	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, hdc),
469	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, hglrc),
470	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, hwnd),
471	#endif
472
473	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, idFramebuffer),
474	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, idReadFramebuffer),
475	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, idDrawFramebuffer),
476	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, lastError),
477
478	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, sidRenderTarget),
479	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, aSidActiveTexture),
480	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, cPixelShaders),
481	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DCONTEXT, paPixelShader),
482	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, cVertexShaders),
483	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DCONTEXT, paVertexShader),
484	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DCONTEXT, pShaderContext),
485	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.u32UpdateFlags),
486
487	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aRenderState),
488	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aTextureState),
489	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aTransformState),
490	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aMaterial),
491	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aClipPlane),
492	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aLightData),
493
494	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aRenderTargets),
495	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.RectScissor),
496	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.RectViewPort),
497	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.zRange),
498	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.shidPixel),
499	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.shidVertex),
500	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.cPixelShaderConst),
501	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DCONTEXT, state.paPixelShaderConst),
502	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.cVertexShaderConst),
503	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DCONTEXT, state.paVertexShaderConst),
504	SSMFIELD_ENTRY_TERM()
505	};
506
507	/**
508	* VMSVGA3d state data.
509	*
510	* Allocated on the heap and pointed to by VMSVGAState::p3dState.
511	*/
512	typedef struct VMSVGA3DSTATE
513	{
514	#ifdef RT_OS_WINDOWS
515	/** Window Thread. */
516	R3PTRTYPE(RTTHREAD) pWindowThread;
517	DWORD idWindowThread;
518	HMODULE hInstance;
519	/** Window request semaphore. */
520	RTSEMEVENT WndRequestSem;
521	#elif defined(RT_OS_LINUX)
522	/* The X display */
523	Display *display;
524	R3PTRTYPE(RTTHREAD) pWindowThread;
525	bool bTerminate;
526	#endif
527
528	float fGLVersion;
529	/* Current active context. */
530	uint32_t idActiveContext;
531
532	struct
533	{
534	PFNGLISRENDERBUFFERPROC glIsRenderbuffer;
535	PFNGLBINDRENDERBUFFERPROC glBindRenderbuffer;
536	PFNGLDELETERENDERBUFFERSPROC glDeleteRenderbuffers;
537	PFNGLGENRENDERBUFFERSPROC glGenRenderbuffers;
538	PFNGLRENDERBUFFERSTORAGEPROC glRenderbufferStorage;
539	PFNGLGETRENDERBUFFERPARAMETERIVPROC glGetRenderbufferParameteriv;
540	PFNGLISFRAMEBUFFERPROC glIsFramebuffer;
541	PFNGLBINDFRAMEBUFFERPROC glBindFramebuffer;
542	PFNGLDELETEFRAMEBUFFERSPROC glDeleteFramebuffers;
543	PFNGLGENFRAMEBUFFERSPROC glGenFramebuffers;
544	PFNGLCHECKFRAMEBUFFERSTATUSPROC glCheckFramebufferStatus;
545	PFNGLFRAMEBUFFERTEXTURE1DPROC glFramebufferTexture1D;
546	PFNGLFRAMEBUFFERTEXTURE2DPROC glFramebufferTexture2D;
547	PFNGLFRAMEBUFFERTEXTURE3DPROC glFramebufferTexture3D;
548	PFNGLFRAMEBUFFERRENDERBUFFERPROC glFramebufferRenderbuffer;
549	PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC glGetFramebufferAttachmentParameteriv;
550	PFNGLGENERATEMIPMAPPROC glGenerateMipmap;
551	PFNGLBLITFRAMEBUFFERPROC glBlitFramebuffer;
552	PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC glRenderbufferStorageMultisample;
553	PFNGLFRAMEBUFFERTEXTURELAYERPROC glFramebufferTextureLayer;
554	PFNGLPOINTPARAMETERFPROC glPointParameterf;
555	PFNGLBLENDEQUATIONPROC glBlendEquation;
556	PFNGLBLENDEQUATIONSEPARATEPROC glBlendEquationSeparate;
557	PFNGLBLENDFUNCSEPARATEPROC glBlendFuncSeparate;
558	PFNGLSTENCILOPSEPARATEPROC glStencilOpSeparate;
559	PFNGLSTENCILFUNCSEPARATEPROC glStencilFuncSeparate;
560	PFNGLBLENDCOLORPROC glBlendColor;
561	PFNGLBINDBUFFERPROC glBindBuffer;
562	PFNGLDELETEBUFFERSPROC glDeleteBuffers;
563	PFNGLGENBUFFERSPROC glGenBuffers;
564	PFNGLBUFFERDATAPROC glBufferData;
565	PFNGLMAPBUFFERPROC glMapBuffer;
566	PFNGLUNMAPBUFFERPROC glUnmapBuffer;
567	PFNGLENABLEVERTEXATTRIBARRAYPROC glEnableVertexAttribArray;
568	PFNGLDISABLEVERTEXATTRIBARRAYPROC glDisableVertexAttribArray;
569	PFNGLVERTEXATTRIBPOINTERPROC glVertexAttribPointer;
570	PFNGLFOGCOORDPOINTERPROC glFogCoordPointer;
571	PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC glDrawElementsInstancedBaseVertex;
572	PFNGLDRAWELEMENTSBASEVERTEXPROC glDrawElementsBaseVertex;
573	PFNGLACTIVETEXTUREPROC glActiveTexture;
574	PFNGLCLIENTACTIVETEXTUREPROC glClientActiveTexture;
575	PFNGLGETPROGRAMIVARBPROC glGetProgramivARB;
576	PFNGLPROVOKINGVERTEXPROC glProvokingVertex;
577	bool fEXT_stencil_two_side;
578	} ext;
579
580	struct
581	{
582	GLint maxActiveLights;
583	GLint maxTextureBufferSize;
584	GLint maxTextures;
585	GLint maxClipDistances;
586	GLint maxColorAttachments;
587	GLint maxRectangleTextureSize;
588	GLint maxTextureAnisotropy;
589	GLint maxVertexShaderInstructions;
590	GLint maxFragmentShaderInstructions;
591	GLint maxVertexShaderTemps;
592	GLint maxFragmentShaderTemps;
593	GLfloat flPointSize[2];
594	SVGA3dPixelShaderVersion fragmentShaderVersion;
595	SVGA3dVertexShaderVersion vertexShaderVersion;
596	bool fS3TCSupported;
597	} caps;
598
599	uint32_t cContexts;
600	PVMSVGA3DCONTEXT paContext;
601	uint32_t cSurfaces;
602	PVMSVGA3DSURFACE paSurface;
603	#ifdef DEBUG_GFX_WINDOW_TEST_CONTEXT
604	uint32_t idTestContext;
605	#endif
606	/** Legacy OpenGL profile GL_EXTENSIONS result (RTStrDup).
607	* This is used to detect shader model version since some implementations
608	* (darwin) hides extensions that have made it into core and probably a
609	* bunch of others when using a OpenGL core profile instead of a legacy one */
610	R3PTRTYPE(char *) pszLegacyExtensions;
611	} VMSVGA3DSTATE;
612	/** Pointer to the VMSVGA3d state. */
613	typedef VMSVGA3DSTATE *PVMSVGA3DSTATE;
614
615	/**
616	* SSM descriptor table for the VMSVGA3DSTATE structure.
617	*/
618	static SSMFIELD const g_aVMSVGA3DSTATEFields[] =
619	{
620	#ifdef RT_OS_WINDOWS
621	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, pWindowThread),
622	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, idWindowThread),
623	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, hInstance),
624	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, WndRequestSem),
625	#elif defined(RT_OS_LINUX)
626	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, display),
627	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, pWindowThread),
628	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, bTerminate),
629	#endif
630	SSMFIELD_ENTRY( VMSVGA3DSTATE, fGLVersion),
631	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, idActiveContext),
632
633	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, ext),
634	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, caps),
635
636	SSMFIELD_ENTRY( VMSVGA3DSTATE, cContexts),
637	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, paContext),
638	SSMFIELD_ENTRY( VMSVGA3DSTATE, cSurfaces),
639	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, paSurface),
640	SSMFIELD_ENTRY_TERM()
641	};
642
643
644	/* Define the default light parameters as specified by MSDN. */
645	/* @todo move out; fetched from Wine */
646	const SVGA3dLightData vmsvga3d_default_light =
647	{
648	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
649	false, /* inWorldSpace */
650	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
651	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
652	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
653	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
654	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
655	0.0f, /* range */
656	0.0f, /* falloff */
657	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
658	0.0f, /* theta */
659	0.0f /* phi */
660	};
661
662	RT_C_DECLS_BEGIN
663	static int vmsvga3dCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext, PVMSVGA3DSURFACE pSurface);
664	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
665	RT_C_DECLS_END
666
667
668	/**
669	* Checks if the given OpenGL extension is supported.
670	*
671	* @returns true if supported, false if not.
672	* @param fActualGLVersion The actual OpenGL version we're working against.
673	* @param fMinGLVersion The OpenGL version that introduced this feature
674	* into the core.
675	* @param pszWantedExtension The name of the OpenGL extension we want.
676	* @remarks Init time only.
677	*/
678	static bool vmsvga3dCheckGLExtension(float fActualGLVersion, float fMinGLVersion, const char *pszWantedExtension)
679	{
680	bool fRet = false;
681
682	#ifdef VBOX_VMSVGA3D_USE_OPENGL_CORE
683	/*
684	* OpenGL 3.2+ core profile (glGetString(GL_EXTENSIONS) returns NULL).
685	* It also avoids listing extensions that have been promoted into the core.
686	*/
687
688	/* Seems like extensions are assimilated into the OpenGL core, so we do
689	hardcoded checks for these as per gl3.h. */
690	if (0) { /nothing/ }
691	else if ( fActualGLVersion >= 2.0
692	&& ( strcmp(pszWantedExtension, "GL_ARB_draw_buffers") == 0
693	\|\| strcmp(pszWantedExtension, "GL_ARB_shader_objects") == 0 /??/
694	\|\| strcmp(pszWantedExtension, "GL_ARB_vertex_shader") == 0 /??/
695	\|\| strcmp(pszWantedExtension, "GL_ARB_fragment_shader") == 0 /??/
696	\|\| strcmp(pszWantedExtension, "GL_ARB_shading_language_100") == 0 /??/
697	\|\| strcmp(pszWantedExtension, "GL_ARB_texture_non_power_of_two") == 0
698	\|\| strcmp(pszWantedExtension, "GL_ARB_point_sprite") == 0
699	\|\| strcmp(pszWantedExtension, "GL_ATI_separate_stencil") == 0
700	\|\| strcmp(pszWantedExtension, "GL_EXT_stencil_two_side") == 0) )
701	fRet = true;
702	else if ( fActualGLVersion >= 2.1
703	&& ( strcmp(pszWantedExtension, "GL_EXT_texture_sRGB") == 0
704	\|\| strcmp(pszWantedExtension, "GL_ARB_pixel_buffer_object") == 0) )
705	fRet = true;
706	else if ( fActualGLVersion >= 3.0
707	&& ( strcmp(pszWantedExtension, "GL_ARB_framebuffer_object") == 0
708	\|\| strcmp(pszWantedExtension, "GL_ARB_map_buffer_range") == 0
709	\|\| strcmp(pszWantedExtension, "GL_ARB_vertex_array_object") == 0) )
710	fRet = true;
711	else if ( fActualGLVersion >= 3.1
712	&& ( strcmp(pszWantedExtension, "GL_ARB_copy_buffer") == 0
713	\|\| strcmp(pszWantedExtension, "GL_ARB_uniform_buffer_object") == 0
714	\|\| strcmp(pszWantedExtension, "GL_ARB_vertex_array_object") == 0) )
715	fRet = true;
716	else if ( fActualGLVersion >= 3.2
717	&& ( strcmp(pszWantedExtension, "GL_ARB_draw_elements_base_vertex") == 0
718	\|\| strcmp(pszWantedExtension, "GL_ARB_vertex_array_bgra") == 0
719	\|\| strcmp(pszWantedExtension, "GL_ARB_provoking_vertex") == 0
720	\|\| strcmp(pszWantedExtension, "GL_ARB_seamless_cube_map") == 0
721	\|\| strcmp(pszWantedExtension, "GL_ARB_fragment_coord_conventions") == 0
722	\|\| strcmp(pszWantedExtension, "GL_ARB_depth_clamp") == 0
723	\|\| strcmp(pszWantedExtension, "GL_ARB_sync") == 0
724	\|\| strcmp(pszWantedExtension, "GL_ARB_texture_multisample") == 0) )
725	fRet = true;
726	else if ( fActualGLVersion >= 3.3
727	&& ( strcmp(pszWantedExtension, "GL_ARB_blend_func_extended") == 0
728	\|\| strcmp(pszWantedExtension, "GL_ARB_sampler_objects") == 0
729	\|\| strcmp(pszWantedExtension, "GL_ARB_explicit_attrib_location") == 0
730	\|\| strcmp(pszWantedExtension, "GL_ARB_occlusion_query2") == 0
731	\|\| strcmp(pszWantedExtension, "GL_ARB_shader_bit_encoding") == 0
732	\|\| strcmp(pszWantedExtension, "GL_ARB_texture_rgb10_a2ui") == 0
733	\|\| strcmp(pszWantedExtension, "GL_ARB_texture_swizzle") == 0
734	\|\| strcmp(pszWantedExtension, "GL_ARB_timer_query") == 0
735	\|\| strcmp(pszWantedExtension, "GL_ARB_vertex_type_2_10_10_10_rev") == 0) )
736	fRet = true;
737	else if ( fActualGLVersion >= 4.0
738	&& ( strcmp(pszWantedExtension, "GL_ARB_texture_query_lod") == 0
739	\|\| strcmp(pszWantedExtension, "GL_ARB_draw_indirect") == 0
740	\|\| strcmp(pszWantedExtension, "GL_ARB_gpu_shader5") == 0
741	\|\| strcmp(pszWantedExtension, "GL_ARB_gpu_shader_fp64") == 0
742	\|\| strcmp(pszWantedExtension, "GL_ARB_shader_subroutine") == 0
743	\|\| strcmp(pszWantedExtension, "GL_ARB_tessellation_shader") == 0
744	\|\| strcmp(pszWantedExtension, "GL_ARB_texture_buffer_object_rgb32") == 0
745	\|\| strcmp(pszWantedExtension, "GL_ARB_texture_cube_map_array") == 0
746	\|\| strcmp(pszWantedExtension, "GL_ARB_texture_gather") == 0
747	\|\| strcmp(pszWantedExtension, "GL_ARB_transform_feedback2") == 0
748	\|\| strcmp(pszWantedExtension, "GL_ARB_transform_feedback3") == 0) )
749	fRet = true;
750	else if ( fActualGLVersion >= 4.1
751	&& ( strcmp(pszWantedExtension, "GL_ARB_ES2_compatibility") == 0
752	\|\| strcmp(pszWantedExtension, "GL_ARB_get_program_binary") == 0
753	\|\| strcmp(pszWantedExtension, "GL_ARB_separate_shader_objects") == 0
754	\|\| strcmp(pszWantedExtension, "GL_ARB_shader_precision") == 0
755	\|\| strcmp(pszWantedExtension, "GL_ARB_vertex_attrib_64bit") == 0
756	\|\| strcmp(pszWantedExtension, "GL_ARB_viewport_array") == 0) )
757	fRet = true;
758	else
759	{
760	/* Search the GL_EXTENSIONS array. */
761	static PFNGLGETSTRINGIPROC s_pfnGlGetStringi = NULL;
762	if (!s_pfnGlGetStringi)
763	{
764	s_pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
765	AssertLogRelReturn(s_pfnGlGetStringi, false);
766	}
767
768	GLint cExtensions = 1024;
769	VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE(GL_NUM_EXTENSIONS, &cExtensions);
770
771	for (GLint idxCur = 0; idxCur < cExtensions; idxCur++)
772	{
773	const char pszCur = (const char )s_pfnGlGetStringi(GL_EXTENSIONS, idxCur);
774	if (pszCur && !strcmp(pszCur, pszWantedExtension))
775	{
776	fRet = true;
777	break;
778	}
779	}
780	}
781	#else
782	/*
783	* Old interface.
784	*/
785	char pSupportedExtensions = (char )glGetString(GL_EXTENSIONS);
786	char *pExtensionSupported = pSupportedExtensions;
787	size_t cchWantedExtension = strlen(pszWantedExtension);
788
789	while (true)
790	{
791	pExtensionSupported = strstr(pExtensionSupported, pszWantedExtension);
792	if (pExtensionSupported == NULL)
793	break;
794
795	if ( ( pExtensionSupported == pSupportedExtensions
796	\|\| pExtensionSupported[-1] == ' ')
797	&& ( pExtensionSupported[cchWantedExtension] == ' '
798	\|\| pExtensionSupported[cchWantedExtension] == '\0')
799	)
800	{
801	fRet = true;
802	break;
803	}
804
805	pExtensionSupported += cchWantedExtension;
806	}
807	#endif
808
809	/* Temporarily. Later start if (fMinGLVersion != 0.0 && fActualGLVersion >= fMinGLVersion) return true; */
810	#if defined(VBOX_VMSVGA3D_USE_OPENGL_CORE) \|\| !defined(RT_OS_DARWIN)
811	AssertMsg(fMinGLVersion == 0.0 \|\| fRet == (fActualGLVersion >= fMinGLVersion),
812	("%s actual:%d min:%d\n", pszWantedExtension, (int)(fActualGLVersion * 10), (int)(fMinGLVersion * 10) ));
813	#endif
814	return fRet;
815	}
816
817
818	/**
819	* Outputs GL_EXTENSIONS list to the release log.
820	*/
821	static void vmsvga3dLogRelExtensions(void)
822	{
823	#ifdef VBOX_VMSVGA3D_USE_OPENGL_CORE
824	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
825	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
826	AssertLogRelReturnVoid(pfnGlGetStringi);
827
828	bool fBuffered = RTLogRelSetBuffering(true);
829
830	GLint cExtensions = 1024;
831	VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE(GL_NUM_EXTENSIONS, &cExtensions);
832	LogRel(("VMSVGA3d: OpenGL extensions (GL_NUM_EXTENSIONS=%d)", cExtensions));
833
834	for (GLint idxCur = 0; idxCur < cExtensions; idxCur++)
835	{
836	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, idxCur);
837	const char *pszFmt = idxCur % 3 ? " %-26s" : "\nVMSVGA3d: %-26s";
838	LogRel((pszFmt, pszExt));
839	}
840
841	RTLogRelSetBuffering(fBuffered);
842	LogRel(("\n"));
843	#else
844	/* Old interface. */
845	LogRel(("VMSVGA3d: OpenGL extensions: %s\n\n", glGetString(GL_EXTENSIONS)));
846	#endif
847	}
848
849
850	/**
851	* Initializes the VMSVGA3D state during VGA device construction.
852	*
853	* Failure are generally not fatal, 3D support will just be disabled.
854	*
855	* @returns VBox status code.
856	* @param pThis The VGA device state where svga.p3dState will be modified.
857	*/
858	int vmsvga3dInit(PVGASTATE pThis)
859	{
860	AssertCompile(GL_TRUE == 1);
861	AssertCompile(GL_FALSE == 0);
862
863	/*
864	* Load and resolve imports from the external shared libraries.
865	*/
866	RTERRINFOSTATIC ErrInfo;
867	int rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
868	if (RT_FAILURE(rc))
869	{
870	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
871	return rc;
872	}
873	#ifdef RT_OS_DARWIN
874	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
875	if (RT_FAILURE(rc))
876	{
877	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
878	return rc;
879	}
880	#endif
881
882	/*
883	* Allocate the state.
884	*/
885	pThis->svga.p3dState = RTMemAllocZ(sizeof(VMSVGA3DSTATE));
886	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
887
888	#ifdef RT_OS_WINDOWS
889	/* Create event semaphore and async IO thread. */
890	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
891	rc = RTSemEventCreate(&pState->WndRequestSem);
892	if (RT_SUCCESS(rc))
893	{
894	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
895	"VMSVGA3DWND");
896	if (RT_SUCCESS(rc))
897	return VINF_SUCCESS;
898
899	/* bail out. */
900	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
901	RTSemEventDestroy(&pState->WndRequestSem);
902	}
903	else
904	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
905	RTMemFree(pThis->svga.p3dState);
906	pThis->svga.p3dState = NULL;
907	return rc;
908	#else
909	return VINF_SUCCESS;
910	#endif
911	}
912
913	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
914	int vmsvga3dPowerOn(PVGASTATE pThis)
915	{
916	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
917	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
918	PVMSVGA3DCONTEXT pContext;
919	#ifdef VBOX_VMSVGA3D_USE_OPENGL_CORE
920	PVMSVGA3DCONTEXT pLegacyContext;
921	#endif
922	int rc;
923
924	if (pState->fGLVersion != 0.0)
925	return VINF_SUCCESS; /* already initialized (load state) */
926
927	/*
928	* Initialize the capabilities with sensible defaults.
929	*/
930	pState->caps.maxActiveLights = 1;
931	pState->caps.maxTextureBufferSize = 65536;
932	pState->caps.maxTextures = 1;
933	pState->caps.maxClipDistances = 4;
934	pState->caps.maxColorAttachments = 1;
935	pState->caps.maxRectangleTextureSize = 2048;
936	pState->caps.maxTextureAnisotropy = 2;
937	pState->caps.maxVertexShaderInstructions = 1024;
938	pState->caps.maxFragmentShaderInstructions = 1024;
939	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
940	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
941
942	/*
943	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
944	*/
945	rc = vmsvga3dContextDefine(pThis, 1, false /fLegacy/);
946	AssertRCReturn(rc, rc);
947
948	pContext = &pState->paContext[1];
949	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
950
951	LogRel(("VMSVGA3d: OpenGL version: %s\nOpenGL Vendor: %s\nOpenGL Renderer: %s\n", glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER)));
952	LogRel(("VMSVGA3d: OpenGL shader language version: %s\n", glGetString(GL_SHADING_LANGUAGE_VERSION)));
953	vmsvga3dLogRelExtensions();
954
955	pState->fGLVersion = atof((const char *)glGetString(GL_VERSION));
956
957
958	#ifdef VBOX_VMSVGA3D_USE_OPENGL_CORE
959	/*
960	* Get the legacy extension list so we can better figure out the shader model.
961	* We add space before and after the list, so we can use strstr for locating extensions.
962	*/
963	rc = vmsvga3dContextDefine(pThis, 2, true /fLegacy/);
964	AssertLogRelRCReturn(rc, rc);
965	pContext = &pState->paContext[1]; /* Array may have been reallocated. */
966
967	pLegacyContext = &pState->paContext[2];
968	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pLegacyContext);
969
970	pState->pszLegacyExtensions = NULL;
971	rc = RTStrAAppendExN(&pState->pszLegacyExtensions, 3,
972	" ", (size_t)1, (const char *)glGetString(GL_EXTENSIONS), RTSTR_MAX, " ", (size_t)1);
973	AssertLogRelRCReturn(rc, rc);
974
975	LogRel(("VMSVGA3d: Legacy OpenGL version: %s\nOpenGL Vendor: %s\nOpenGL Renderer: %s\n", glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER)));
976	LogRel(("VMSVGA3d: Legacy OpenGL shader language version: %s\n", glGetString(GL_SHADING_LANGUAGE_VERSION)));
977	LogRel(("VMSVGA3d: Legacy OpenGL extenions: %s\n", glGetString(GL_EXTENSIONS)));
978
979	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
980	#else
981	pState->pszLegacyExtensions = (char *)"";
982	#endif
983
984
985	if (vmsvga3dCheckGLExtension(pState->fGLVersion, 3.0, "GL_ARB_framebuffer_object"))
986	{
987	pState->ext.glIsRenderbuffer = (PFNGLISRENDERBUFFERPROC)OGLGETPROCADDRESS("glIsRenderbuffer");
988	pState->ext.glBindRenderbuffer = (PFNGLBINDRENDERBUFFERPROC)OGLGETPROCADDRESS("glBindRenderbuffer");
989	pState->ext.glDeleteRenderbuffers = (PFNGLDELETERENDERBUFFERSPROC)OGLGETPROCADDRESS("glDeleteRenderbuffers");
990	pState->ext.glGenRenderbuffers = (PFNGLGENRENDERBUFFERSPROC)OGLGETPROCADDRESS("glGenRenderbuffers");
991	pState->ext.glRenderbufferStorage = (PFNGLRENDERBUFFERSTORAGEPROC)OGLGETPROCADDRESS("glRenderbufferStorage");
992	pState->ext.glGetRenderbufferParameteriv = (PFNGLGETRENDERBUFFERPARAMETERIVPROC)OGLGETPROCADDRESS("glGetRenderbufferParameteriv");
993	pState->ext.glIsFramebuffer = (PFNGLISFRAMEBUFFERPROC)OGLGETPROCADDRESS("glIsFramebuffer");
994	pState->ext.glBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBindFramebuffer");
995	pState->ext.glDeleteFramebuffers = (PFNGLDELETEFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteFramebuffers");
996	pState->ext.glGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glGenFramebuffers");
997	pState->ext.glCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC)OGLGETPROCADDRESS("glCheckFramebufferStatus");
998	pState->ext.glFramebufferTexture1D = (PFNGLFRAMEBUFFERTEXTURE1DPROC)OGLGETPROCADDRESS("glFramebufferTexture1D");
999	pState->ext.glFramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC)OGLGETPROCADDRESS("glFramebufferTexture2D");
1000	pState->ext.glFramebufferTexture3D = (PFNGLFRAMEBUFFERTEXTURE3DPROC)OGLGETPROCADDRESS("glFramebufferTexture3D");
1001	pState->ext.glFramebufferRenderbuffer = (PFNGLFRAMEBUFFERRENDERBUFFERPROC)OGLGETPROCADDRESS("glFramebufferRenderbuffer");
1002	pState->ext.glGetFramebufferAttachmentParameteriv = (PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC)OGLGETPROCADDRESS("glGetFramebufferAttachmentParameteriv");
1003	pState->ext.glGenerateMipmap = (PFNGLGENERATEMIPMAPPROC)OGLGETPROCADDRESS("glGenerateMipmap");
1004	pState->ext.glBlitFramebuffer = (PFNGLBLITFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBlitFramebuffer");
1005	pState->ext.glRenderbufferStorageMultisample = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC)OGLGETPROCADDRESS("glRenderbufferStorageMultisample");
1006	pState->ext.glFramebufferTextureLayer = (PFNGLFRAMEBUFFERTEXTURELAYERPROC)OGLGETPROCADDRESS("glFramebufferTextureLayer");
1007	}
1008	pState->ext.glPointParameterf = (PFNGLPOINTPARAMETERFPROC)OGLGETPROCADDRESS("glPointParameterf");
1009	AssertMsgReturn(pState->ext.glPointParameterf, ("glPointParameterf missing"), VERR_NOT_IMPLEMENTED);
1010	pState->ext.glBlendEquation = (PFNGLBLENDEQUATIONPROC)OGLGETPROCADDRESS("glBlendEquation");
1011	AssertMsgReturn(pState->ext.glBlendEquation, ("glBlendEquation missing"), VERR_NOT_IMPLEMENTED);
1012	pState->ext.glBlendEquationSeparate = (PFNGLBLENDEQUATIONSEPARATEPROC)OGLGETPROCADDRESS("glBlendEquationSeparate");
1013	AssertMsgReturn(pState->ext.glBlendEquationSeparate, ("glBlendEquationSeparate missing"), VERR_NOT_IMPLEMENTED);
1014	pState->ext.glBlendFuncSeparate = (PFNGLBLENDFUNCSEPARATEPROC)OGLGETPROCADDRESS("glBlendFuncSeparate");
1015	AssertMsgReturn(pState->ext.glBlendFuncSeparate, ("glBlendFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
1016	pState->ext.glStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC)OGLGETPROCADDRESS("glStencilOpSeparate");
1017	AssertMsgReturn(pState->ext.glStencilOpSeparate, ("glStencilOpSeparate missing"), VERR_NOT_IMPLEMENTED);
1018	pState->ext.glStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC)OGLGETPROCADDRESS("glStencilFuncSeparate");
1019	AssertMsgReturn(pState->ext.glStencilFuncSeparate, ("glStencilFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
1020	pState->ext.glBlendColor = (PFNGLBLENDCOLORPROC)OGLGETPROCADDRESS("glBlendColor");
1021	AssertMsgReturn(pState->ext.glBlendColor, ("glBlendColor missing"), VERR_NOT_IMPLEMENTED);
1022	pState->ext.glBindBuffer = (PFNGLBINDBUFFERPROC)OGLGETPROCADDRESS("glBindBuffer");
1023	AssertMsgReturn(pState->ext.glBindBuffer, ("glBindBuffer missing"), VERR_NOT_IMPLEMENTED);
1024	pState->ext.glDeleteBuffers = (PFNGLDELETEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteBuffers");
1025	AssertMsgReturn(pState->ext.glDeleteBuffers, ("glDeleteBuffers missing"), VERR_NOT_IMPLEMENTED);
1026	pState->ext.glGenBuffers = (PFNGLGENBUFFERSPROC)OGLGETPROCADDRESS("glGenBuffers");
1027	AssertMsgReturn(pState->ext.glGenBuffers, ("glGenBuffers missing"), VERR_NOT_IMPLEMENTED);
1028	pState->ext.glBufferData = (PFNGLBUFFERDATAPROC)OGLGETPROCADDRESS("glBufferData");
1029	AssertMsgReturn(pState->ext.glBufferData, ("glBufferData missing"), VERR_NOT_IMPLEMENTED);
1030	pState->ext.glMapBuffer = (PFNGLMAPBUFFERPROC)OGLGETPROCADDRESS("glMapBuffer");
1031	AssertMsgReturn(pState->ext.glMapBuffer, ("glMapBuffer missing"), VERR_NOT_IMPLEMENTED);
1032	pState->ext.glUnmapBuffer = (PFNGLUNMAPBUFFERPROC)OGLGETPROCADDRESS("glUnmapBuffer");
1033	AssertMsgReturn(pState->ext.glUnmapBuffer, ("glUnmapBuffer missing"), VERR_NOT_IMPLEMENTED);
1034	pState->ext.glEnableVertexAttribArray = (PFNGLENABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glEnableVertexAttribArray");
1035	AssertMsgReturn(pState->ext.glEnableVertexAttribArray, ("glEnableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
1036	pState->ext.glDisableVertexAttribArray = (PFNGLDISABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glDisableVertexAttribArray");
1037	AssertMsgReturn(pState->ext.glDisableVertexAttribArray, ("glDisableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
1038	pState->ext.glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC)OGLGETPROCADDRESS("glVertexAttribPointer");
1039	AssertMsgReturn(pState->ext.glVertexAttribPointer, ("glVertexAttribPointer missing"), VERR_NOT_IMPLEMENTED);
1040	pState->ext.glFogCoordPointer = (PFNGLFOGCOORDPOINTERPROC)OGLGETPROCADDRESS("glFogCoordPointer");
1041	AssertMsgReturn(pState->ext.glFogCoordPointer, ("glFogCoordPointer missing"), VERR_NOT_IMPLEMENTED);
1042	pState->ext.glActiveTexture = (PFNGLACTIVETEXTUREPROC)OGLGETPROCADDRESS("glActiveTexture");
1043	AssertMsgReturn(pState->ext.glActiveTexture, ("glActiveTexture missing"), VERR_NOT_IMPLEMENTED);
1044	pState->ext.glClientActiveTexture = (PFNGLCLIENTACTIVETEXTUREPROC)OGLGETPROCADDRESS("glClientActiveTexture");
1045	AssertMsgReturn(pState->ext.glClientActiveTexture, ("glClientActiveTexture missing"), VERR_NOT_IMPLEMENTED);
1046	pState->ext.glGetProgramivARB = (PFNGLGETPROGRAMIVARBPROC)OGLGETPROCADDRESS("glGetProgramivARB");
1047	AssertMsgReturn(pState->ext.glGetProgramivARB, ("glGetProgramivARB missing"), VERR_NOT_IMPLEMENTED);
1048
1049	/* OpenGL 3.2 core */
1050	if (vmsvga3dCheckGLExtension(pState->fGLVersion, 3.2, "GL_ARB_draw_elements_base_vertex"))
1051	{
1052	pState->ext.glDrawElementsBaseVertex = (PFNGLDRAWELEMENTSBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsBaseVertex");
1053	pState->ext.glDrawElementsInstancedBaseVertex = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsInstancedBaseVertex");
1054	}
1055	else
1056	LogRel(("VMSVGA3d: missing extension GL_ARB_draw_elements_base_vertex\n"));
1057
1058	/* OpenGL 3.2 core */
1059	if (vmsvga3dCheckGLExtension(pState->fGLVersion, 3.2, "GL_ARB_provoking_vertex"))
1060	{
1061	pState->ext.glProvokingVertex = (PFNGLPROVOKINGVERTEXPROC)OGLGETPROCADDRESS("glProvokingVertex");
1062	}
1063	else
1064	LogRel(("VMSVGA3d: missing extension GL_ARB_provoking_vertex\n"));
1065
1066	/* Extension support */
1067	#ifdef VBOX_VMSVGA3D_USE_OPENGL_CORE
1068	/** @todo OpenGL version history suggest this, verify... */
1069	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState->fGLVersion, 2.0, "GL_EXT_stencil_two_side");
1070	#else
1071	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState->fGLVersion, 0.0, "GL_EXT_stencil_two_side");
1072	#endif
1073
1074	/* Query capabilities */
1075	#ifdef VBOX_VMSVGA3D_USE_OPENGL_CORE
1076	glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights);
1077	if (glGetError() != GL_NO_ERROR)
1078	{
1079	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pLegacyContext);
1080	VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE(GL_MAX_LIGHTS, &pState->caps.maxActiveLights);
1081	if (glGetError() != GL_NO_ERROR)
1082	pState->caps.maxActiveLights = 1;
1083	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1084	}
1085	#else
1086	VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE(GL_MAX_LIGHTS, &pState->caps.maxActiveLights);
1087	#endif
1088	VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE(GL_MAX_TEXTURE_BUFFER_SIZE, &pState->caps.maxTextureBufferSize);
1089	#ifdef VBOX_VMSVGA3D_USE_OPENGL_CORE
1090	glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights);
1091	if (glGetError() != GL_NO_ERROR)
1092	VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE(GL_MAX_TEXTURE_IMAGE_UNITS, &pState->caps.maxTextures);
1093	#else
1094	VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures);
1095	#endif
1096	VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances);
1097	VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments);
1098	VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize);
1099	VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy);
1100	#ifdef VBOX_VMSVGA3D_USE_OPENGL_CORE
1101	glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize);
1102	if (glGetError() != GL_NO_ERROR)
1103	{
1104	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pLegacyContext);
1105	VMSVGA3D_INIT_CHECKED(glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
1106	if (glGetError() != GL_NO_ERROR)
1107	{
1108	pState->caps.flPointSize[0] = 1;
1109	pState->caps.flPointSize[1] = 1;
1110	}
1111	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1112	}
1113	#else
1114	VMSVGA3D_INIT_CHECKED(glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
1115	#endif
1116
1117	if (pState->ext.glGetProgramivARB)
1118	{
1119	#ifdef VBOX_VMSVGA3D_USE_OPENGL_CORE /* None of these queries works with the OpenGL 3.2 Core context on darwin. */
1120	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pLegacyContext);
1121	#endif
1122	VMSVGA3D_INIT_CHECKED(pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
1123	&pState->caps.maxFragmentShaderTemps));
1124	VMSVGA3D_INIT_CHECKED(pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
1125	&pState->caps.maxFragmentShaderInstructions));
1126	VMSVGA3D_INIT_CHECKED(pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
1127	&pState->caps.maxVertexShaderTemps));
1128	VMSVGA3D_INIT_CHECKED(pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
1129	&pState->caps.maxVertexShaderInstructions));
1130	#ifdef VBOX_VMSVGA3D_USE_OPENGL_CORE
1131	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1132	#endif
1133	}
1134	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState->fGLVersion, 0.0, "GL_EXT_texture_compression_s3tc");
1135
1136	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
1137	* ARB Assembly Language
1138	* These are done through testing the presence of extensions. You should test them in this order:
1139	* GL_NV_gpu_program4: SM 4.0 or better.
1140	* GL_NV_vertex_program3: SM 3.0 or better.
1141	* GL_ARB_fragment_program: SM 2.0 or better.
1142	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
1143	*
1144	*/
1145	/** @todo: distinguish between vertex and pixel shaders??? */
1146	if ( vmsvga3dCheckGLExtension(pState->fGLVersion, 0.0, "GL_NV_gpu_program4")
1147	\|\| strstr(pState->pszLegacyExtensions, " GL_NV_gpu_program4 "))
1148	{
1149	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
1150	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
1151	}
1152	else
1153	if ( vmsvga3dCheckGLExtension(pState->fGLVersion, 0.0, "GL_NV_vertex_program3")
1154	\|\| strstr(pState->pszLegacyExtensions, " GL_NV_vertex_program3 ")
1155	#if 0 /** @todo this is contrary to the ATI <= SM2.0. */
1156	\|\| vmsvga3dCheckGLExtension(pState->fGLVersion, 0.0, "GL_ARB_shader_texture_lod") /* Wine claims this suggests SM 3.0 support */
1157	\|\| strstr(pState->pszLegacyExtensions, " GL_ARB_shader_texture_lod ")
1158	#endif
1159	)
1160	{
1161	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
1162	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
1163	}
1164	else
1165	if ( vmsvga3dCheckGLExtension(pState->fGLVersion, 0.0, "GL_ARB_fragment_program")
1166	\|\| strstr(pState->pszLegacyExtensions, " GL_ARB_fragment_program "))
1167	{
1168	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
1169	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
1170	}
1171	else
1172	{
1173	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
1174	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
1175	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
1176	}
1177
1178	if (!vmsvga3dCheckGLExtension(pState->fGLVersion, 3.2, "GL_ARB_vertex_array_bgra"))
1179	{
1180	/** @todo Intel drivers don't support this extension! */
1181	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
1182	}
1183	#if 0
1184	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
1185	SVGA3D_DEVCAP_QUERY_TYPES = 15,
1186	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
1187	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
1188	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
1189	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
1190	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
1191	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
1192	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
1193	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
1194	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
1195	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
1196	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
1197	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
1198	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
1199	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
1200	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
1201	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
1202	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
1203	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
1204	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
1205	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
1206	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
1207	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
1208	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
1209	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
1210	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
1211	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
1212	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
1213	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
1214	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
1215	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
1216	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
1217	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
1218	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
1219	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
1220	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
1221	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
1222	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
1223	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
1224	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
1225	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
1226	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
1227	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
1228	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
1229	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
1230	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
1231	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
1232	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
1233	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
1234	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
1235	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
1236	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
1237	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
1238	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
1239	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
1240	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
1241	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
1242	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
1243	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
1244	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
1245	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
1246	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
1247	#endif
1248
1249	LogRel(("VMSVGA3d: Capabilities:\n"));
1250	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d maxTextureBufferSize=%d\n",
1251	pState->caps.maxActiveLights, pState->caps.maxTextures, pState->caps.maxTextureBufferSize));
1252	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
1253	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
1254	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
1255	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
1256	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
1257	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
1258	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
1259	pState->caps.maxFragmentShaderTemps,
1260	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
1261	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
1262	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
1263	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
1264
1265
1266	/* Initialize the shader library. */
1267	rc = ShaderInitLib();
1268	AssertRC(rc);
1269
1270	/* Cleanup */
1271	rc = vmsvga3dContextDestroy(pThis, 1);
1272	AssertRC(rc);
1273	#ifdef VBOX_VMSVGA3D_USE_OPENGL_CORE
1274	rc = vmsvga3dContextDestroy(pThis, 2);
1275	AssertRC(rc);
1276	#endif
1277
1278	#if !defined(RT_OS_DARWIN) \|\| defined(VBOX_VMSVGA3D_USE_OPENGL_CORE)
1279	/* on the Mac, OpenGL 3 came very late so we have a capable 2.1 implementation */
1280	if (pState->fGLVersion < 3.0)
1281	{
1282	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1283	return VERR_NOT_IMPLEMENTED;
1284	}
1285	#endif
1286	if ( !pState->ext.glIsRenderbuffer
1287	\|\| !pState->ext.glBindRenderbuffer
1288	\|\| !pState->ext.glDeleteRenderbuffers
1289	\|\| !pState->ext.glGenRenderbuffers
1290	\|\| !pState->ext.glRenderbufferStorage
1291	\|\| !pState->ext.glGetRenderbufferParameteriv
1292	\|\| !pState->ext.glIsFramebuffer
1293	\|\| !pState->ext.glBindFramebuffer
1294	\|\| !pState->ext.glDeleteFramebuffers
1295	\|\| !pState->ext.glGenFramebuffers
1296	\|\| !pState->ext.glCheckFramebufferStatus
1297	\|\| !pState->ext.glFramebufferTexture1D
1298	\|\| !pState->ext.glFramebufferTexture2D
1299	\|\| !pState->ext.glFramebufferTexture3D
1300	\|\| !pState->ext.glFramebufferRenderbuffer
1301	\|\| !pState->ext.glGetFramebufferAttachmentParameteriv
1302	\|\| !pState->ext.glGenerateMipmap
1303	\|\| !pState->ext.glBlitFramebuffer
1304	\|\| !pState->ext.glRenderbufferStorageMultisample
1305	\|\| !pState->ext.glFramebufferTextureLayer)
1306	{
1307	LogRel(("VMSVGA3d: missing required OpenGL extension; aborting\n"));
1308	return VERR_NOT_IMPLEMENTED;
1309	}
1310
1311	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
1312	pState->idTestContext = SVGA_ID_INVALID;
1313	#endif
1314	return VINF_SUCCESS;
1315	}
1316
1317	int vmsvga3dReset(PVGASTATE pThis)
1318	{
1319	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
1320	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1321
1322	/* Destroy all leftover surfaces. */
1323	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1324	{
1325	if (pState->paSurface[i].id != SVGA3D_INVALID_ID)
1326	vmsvga3dSurfaceDestroy(pThis, pState->paSurface[i].id);
1327	}
1328
1329	/* Destroy all leftover contexts. */
1330	for (uint32_t i = 0; i < pState->cContexts; i++)
1331	{
1332	if (pState->paContext[i].id != SVGA3D_INVALID_ID)
1333	vmsvga3dContextDestroy(pThis, pState->paContext[i].id);
1334	}
1335	return VINF_SUCCESS;
1336	}
1337
1338	int vmsvga3dTerminate(PVGASTATE pThis)
1339	{
1340	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
1341	AssertReturn(pState, VERR_WRONG_ORDER);
1342	int rc;
1343
1344	rc = vmsvga3dReset(pThis);
1345	AssertRCReturn(rc, rc);
1346
1347	/* Terminate the shader library. */
1348	rc = ShaderDestroyLib();
1349	AssertRC(rc);
1350
1351	#ifdef RT_OS_WINDOWS
1352	/* Terminate the window creation thread. */
1353	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1354	AssertRCReturn(rc, rc);
1355
1356	RTSemEventDestroy(pState->WndRequestSem);
1357	#elif defined(RT_OS_DARWIN)
1358
1359	#elif defined(RT_OS_LINUX)
1360	/* signal to the thread that it is supposed to exit */
1361	pState->bTerminate = true;
1362	/* wait for it to terminate */
1363	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1364	AssertRC(rc);
1365	XCloseDisplay(pState->display);
1366	#endif
1367
1368	#ifdef VBOX_VMSVGA3D_USE_OPENGL_CORE
1369	RTStrFree(pState->pszLegacyExtensions);
1370	#endif
1371	pState->pszLegacyExtensions = NULL;
1372
1373	return VINF_SUCCESS;
1374	}
1375
1376	/* Shared functions that depend on private structure definitions. */
1377	#define VMSVGA3D_OPENGL
1378	#include "DevVGA-SVGA3d-shared.h"
1379
1380	static uint32_t vmsvga3dGetSurfaceFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1381	{
1382	uint32_t result = 0;
1383
1384	/* @todo missing:
1385	*
1386	* SVGA3DFORMAT_OP_PIXELSIZE
1387	*/
1388
1389	switch (idx3dCaps)
1390	{
1391	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1392	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1393	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1394	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1395	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1396	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1397	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1398	break;
1399
1400	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1401	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1402	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1403	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1404	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1405	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1406	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1407	break;
1408	}
1409
1410	/* @todo check hardware caps! */
1411	switch (idx3dCaps)
1412	{
1413	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1414	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1415	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1416	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1417	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1418	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1419	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1420	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1421	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1422	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1423	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1424	result \|= SVGA3DFORMAT_OP_TEXTURE
1425	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1426	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1427	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1428	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1429	\| SVGA3DFORMAT_OP_CUBETEXTURE
1430	\| SVGA3DFORMAT_OP_SRGBREAD
1431	\| SVGA3DFORMAT_OP_SRGBWRITE;
1432	break;
1433
1434	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1435	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1436	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1437	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1438	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1439	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1440	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1441	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1442	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1443	break;
1444
1445	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1446	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1447	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1448	result \|= SVGA3DFORMAT_OP_TEXTURE
1449	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1450	\| SVGA3DFORMAT_OP_CUBETEXTURE
1451	\| SVGA3DFORMAT_OP_SRGBREAD;
1452	break;
1453
1454	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1455	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1456	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1457	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1458	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1459	break;
1460
1461	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1462	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1463	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1464	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1465	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1466	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1467	break;
1468
1469	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1470	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1471	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1472
1473	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1474	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1475	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1476	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1477	break;
1478	}
1479	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1480
1481	return result;
1482	}
1483
1484	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1485	{
1486	uint32_t result = 0;
1487
1488	/* @todo test this somehow */
1489	result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1490
1491	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1492	return result;
1493	}
1494
1495
1496	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1497	{
1498	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
1499	AssertReturn(pState, VERR_NO_MEMORY);
1500	int rc = VINF_SUCCESS;
1501
1502	*pu32Val = 0;
1503
1504	switch (idx3dCaps)
1505	{
1506	case SVGA3D_DEVCAP_3D:
1507	pu32Val = 1; / boolean? */
1508	break;
1509
1510	case SVGA3D_DEVCAP_MAX_LIGHTS:
1511	*pu32Val = pState->caps.maxActiveLights;
1512	break;
1513
1514	case SVGA3D_DEVCAP_MAX_TEXTURES:
1515	*pu32Val = pState->caps.maxTextures;
1516	break;
1517
1518	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1519	*pu32Val = pState->caps.maxClipDistances;
1520	break;
1521
1522	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1523	*pu32Val = pState->caps.vertexShaderVersion;
1524	break;
1525
1526	case SVGA3D_DEVCAP_VERTEX_SHADER:
1527	/* boolean? */
1528	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1529	break;
1530
1531	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1532	*pu32Val = pState->caps.fragmentShaderVersion;
1533	break;
1534
1535	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1536	/* boolean? */
1537	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1538	break;
1539
1540	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1541	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1542	/* Must be obsolete by now; surface format caps specify the same thing. */
1543	rc = VERR_INVALID_PARAMETER;
1544	break;
1545
1546	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1547	break;
1548
1549	/*
1550	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1551	* return TRUE. Even on physical hardware that does not support
1552	* these formats natively, the SVGA3D device will provide an emulation
1553	* which should be invisible to the guest OS.
1554	*/
1555	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1556	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1557	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1558	*pu32Val = 1;
1559	break;
1560
1561	case SVGA3D_DEVCAP_QUERY_TYPES:
1562	break;
1563
1564	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1565	break;
1566
1567	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1568	AssertCompile(sizeof(uint32_t) == sizeof(float));
1569	(float )pu32Val = pState->caps.flPointSize[1];
1570	break;
1571
1572	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1573	/* @todo ?? */
1574	rc = VERR_INVALID_PARAMETER;
1575	break;
1576
1577	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1578	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1579	*pu32Val = pState->caps.maxRectangleTextureSize;
1580	break;
1581
1582	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1583	//*pu32Val = pCaps->MaxVolumeExtent;
1584	break;
1585
1586	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1587	pu32Val = 32768; / hardcoded in Wine */
1588	break;
1589
1590	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1591	//*pu32Val = pCaps->MaxTextureAspectRatio;
1592	break;
1593
1594	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1595	*pu32Val = pState->caps.maxTextureAnisotropy;
1596	break;
1597
1598	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1599	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1600	pu32Val = 0xFFFFF; / hardcoded in Wine */
1601	break;
1602
1603	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1604	*pu32Val = pState->caps.maxVertexShaderInstructions;
1605	break;
1606
1607	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1608	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1609	break;
1610
1611	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1612	*pu32Val = pState->caps.maxVertexShaderTemps;
1613	break;
1614
1615	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1616	*pu32Val = pState->caps.maxFragmentShaderTemps;
1617	break;
1618
1619	case SVGA3D_DEVCAP_TEXTURE_OPS:
1620	break;
1621
1622	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1623	break;
1624
1625	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1626	break;
1627
1628	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1629	break;
1630
1631	case SVGA3D_DEVCAP_SUPERSAMPLE:
1632	break;
1633
1634	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1635	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1636	break;
1637
1638	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1639	break;
1640
1641	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /* @todo same thing? */
1642	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1643	*pu32Val = pState->caps.maxColorAttachments;
1644	break;
1645
1646	/*
1647	* This is the maximum number of SVGA context IDs that the guest
1648	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1649	*/
1650	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1651	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1652	break;
1653
1654	/*
1655	* This is the maximum number of SVGA surface IDs that the guest
1656	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1657	*/
1658	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1659	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1660	break;
1661
1662	/* Supported surface formats. */
1663	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1664	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1665	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1666	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1667	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1668	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1669	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1670	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1671	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1672	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1673	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1674	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1675	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1676	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1677	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1678	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1679	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1680	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1681	*pu32Val = vmsvga3dGetSurfaceFormatSupport(pState, idx3dCaps);
1682	break;
1683
1684	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1685	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1686	pu32Val = 0; / apparently not supported in OpenGL */
1687	break;
1688
1689	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1690	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1691	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1692	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1693	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1694	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1695	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1696	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1697	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1698	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1699	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1700	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1701	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1702	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1703	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1704	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1705	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1706	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1707	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1708	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1709	*pu32Val = vmsvga3dGetSurfaceFormatSupport(pState, idx3dCaps);
1710	break;
1711
1712	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1713	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1714	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1715	rc = VERR_INVALID_PARAMETER;
1716	*pu32Val = 0;
1717	break;
1718
1719	default:
1720	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1721	rc = VERR_INVALID_PARAMETER;
1722	break;
1723	}
1724
1725	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1726	return rc;
1727	}
1728
1729	/**
1730	* Convert SVGA format value to its OpenGL equivalent
1731	*/
1732	static void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1733	{
1734	switch (format)
1735	{
1736	case SVGA3D_X8R8G8B8:
1737	pSurface->internalFormatGL = GL_RGB8;
1738	pSurface->formatGL = GL_BGRA;
1739	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1740	break;
1741	case SVGA3D_A8R8G8B8:
1742	pSurface->internalFormatGL = GL_RGBA8;
1743	pSurface->formatGL = GL_BGRA;
1744	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1745	break;
1746	case SVGA3D_R5G6B5:
1747	pSurface->internalFormatGL = GL_RGB;
1748	pSurface->formatGL = GL_RGB;
1749	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1750	break;
1751	case SVGA3D_X1R5G5B5:
1752	pSurface->internalFormatGL = GL_RGB;
1753	pSurface->formatGL = GL_RGB;
1754	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1755	break;
1756	case SVGA3D_A1R5G5B5:
1757	pSurface->internalFormatGL = GL_RGBA;
1758	pSurface->formatGL = GL_RGB;
1759	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1760	break;
1761	case SVGA3D_A4R4G4B4:
1762	pSurface->internalFormatGL = GL_RGBA;
1763	pSurface->formatGL = GL_RGBA;
1764	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4;
1765	break;
1766
1767	case SVGA3D_Z_D32:
1768	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1769	pSurface->formatGL = GL_DEPTH_COMPONENT;
1770	pSurface->typeGL = GL_UNSIGNED_INT;
1771	break;
1772	case SVGA3D_Z_D16:
1773	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1774	pSurface->formatGL = GL_DEPTH_COMPONENT;
1775	pSurface->typeGL = GL_UNSIGNED_SHORT;
1776	break;
1777	case SVGA3D_Z_D24S8:
1778	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1779	pSurface->formatGL = GL_DEPTH_STENCIL;
1780	pSurface->typeGL = GL_UNSIGNED_INT;
1781	break;
1782	case SVGA3D_Z_D15S1:
1783	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /* @todo ??? */
1784	pSurface->formatGL = GL_DEPTH_STENCIL;
1785	pSurface->typeGL = GL_UNSIGNED_SHORT;
1786	break;
1787	case SVGA3D_Z_D24X8:
1788	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1789	pSurface->formatGL = GL_DEPTH_COMPONENT;
1790	pSurface->typeGL = GL_UNSIGNED_INT;
1791	break;
1792
1793	/* Advanced D3D9 depth formats. */
1794	case SVGA3D_Z_DF16:
1795	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1796	pSurface->formatGL = GL_DEPTH_COMPONENT;
1797	pSurface->typeGL = GL_FLOAT;
1798	break;
1799
1800	case SVGA3D_Z_DF24:
1801	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1802	pSurface->formatGL = GL_DEPTH_COMPONENT;
1803	pSurface->typeGL = GL_FLOAT; /* ??? */
1804	break;
1805
1806	case SVGA3D_Z_D24S8_INT:
1807	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1808	pSurface->formatGL = GL_DEPTH_STENCIL;
1809	pSurface->typeGL = GL_INT; /* ??? */
1810	break;
1811
1812	case SVGA3D_DXT1:
1813	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1814	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1815	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1816	break;
1817
1818	case SVGA3D_DXT3:
1819	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1820	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1821	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1822	break;
1823
1824	case SVGA3D_DXT5:
1825	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1826	pSurface->formatGL = GL_RGBA_S3TC;
1827	pSurface->typeGL = GL_UNSIGNED_INT;
1828	break;
1829
1830	case SVGA3D_LUMINANCE8:
1831	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1832	pSurface->formatGL = GL_LUMINANCE;
1833	pSurface->typeGL = GL_UNSIGNED_BYTE;
1834	break;
1835
1836	case SVGA3D_LUMINANCE16:
1837	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1838	pSurface->formatGL = GL_LUMINANCE;
1839	pSurface->typeGL = GL_UNSIGNED_SHORT;
1840	break;
1841
1842	case SVGA3D_LUMINANCE4_ALPHA4:
1843	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1844	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1845	pSurface->typeGL = GL_UNSIGNED_BYTE;
1846	break;
1847
1848	case SVGA3D_LUMINANCE8_ALPHA8:
1849	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1850	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1851	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1852	break;
1853
1854	case SVGA3D_ALPHA8:
1855	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1856	pSurface->formatGL = GL_ALPHA;
1857	pSurface->typeGL = GL_UNSIGNED_BYTE;
1858	break;
1859
1860	#if 0
1861
1862	/* Bump-map formats */
1863	case SVGA3D_BUMPU8V8:
1864	return D3DFMT_V8U8;
1865	case SVGA3D_BUMPL6V5U5:
1866	return D3DFMT_L6V5U5;
1867	case SVGA3D_BUMPX8L8V8U8:
1868	return D3DFMT_X8L8V8U8;
1869	case SVGA3D_BUMPL8V8U8:
1870	/* No corresponding D3D9 equivalent. */
1871	AssertFailedReturn(D3DFMT_UNKNOWN);
1872	/* signed bump-map formats */
1873	case SVGA3D_V8U8:
1874	return D3DFMT_V8U8;
1875	case SVGA3D_Q8W8V8U8:
1876	return D3DFMT_Q8W8V8U8;
1877	case SVGA3D_CxV8U8:
1878	return D3DFMT_CxV8U8;
1879	/* mixed bump-map formats */
1880	case SVGA3D_X8L8V8U8:
1881	return D3DFMT_X8L8V8U8;
1882	case SVGA3D_A2W10V10U10:
1883	return D3DFMT_A2W10V10U10;
1884	#endif
1885
1886	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB */
1887	pSurface->internalFormatGL = GL_RGBA16F;
1888	pSurface->formatGL = GL_RGBA;
1889	pSurface->typeGL = GL_FLOAT;
1890	break;
1891
1892	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB */
1893	pSurface->internalFormatGL = GL_RGBA32F;
1894	pSurface->formatGL = GL_RGBA;
1895	pSurface->typeGL = GL_FLOAT; /* ?? */
1896	break;
1897
1898	case SVGA3D_A2R10G10B10:
1899	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? */
1900	pSurface->formatGL = GL_RGBA;
1901	pSurface->typeGL = GL_UNSIGNED_INT;
1902	break;
1903
1904
1905	/* Single- and dual-component floating point formats */
1906	case SVGA3D_R_S10E5:
1907	pSurface->internalFormatGL = GL_R16F;
1908	pSurface->formatGL = GL_RED;
1909	pSurface->typeGL = GL_FLOAT;
1910	break;
1911	case SVGA3D_R_S23E8:
1912	pSurface->internalFormatGL = GL_R32F;
1913	pSurface->formatGL = GL_RG;
1914	pSurface->typeGL = GL_FLOAT;
1915	break;
1916	case SVGA3D_RG_S10E5:
1917	pSurface->internalFormatGL = GL_RG16F;
1918	pSurface->formatGL = GL_RG;
1919	pSurface->typeGL = GL_FLOAT;
1920	break;
1921	case SVGA3D_RG_S23E8:
1922	pSurface->internalFormatGL = GL_RG32F;
1923	pSurface->formatGL = GL_RG;
1924	pSurface->typeGL = GL_FLOAT;
1925	break;
1926
1927	/*
1928	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1929	* the most efficient format to use when creating new surfaces
1930	* expressly for index or vertex data.
1931	*/
1932	case SVGA3D_BUFFER:
1933	pSurface->internalFormatGL = -1;
1934	pSurface->formatGL = -1;
1935	pSurface->typeGL = -1;
1936	break;
1937
1938	#if 0
1939	return D3DFMT_UNKNOWN;
1940
1941	case SVGA3D_V16U16:
1942	return D3DFMT_V16U16;
1943	#endif
1944
1945	case SVGA3D_G16R16:
1946	pSurface->internalFormatGL = GL_RG16;
1947	pSurface->formatGL = GL_RG;
1948	pSurface->typeGL = GL_UNSIGNED_INT;
1949	break;
1950
1951	case SVGA3D_A16B16G16R16:
1952	pSurface->internalFormatGL = GL_RGBA16;
1953	pSurface->formatGL = GL_RG;
1954	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1955	break;
1956
1957	#if 0
1958	/* Packed Video formats */
1959	case SVGA3D_UYVY:
1960	return D3DFMT_UYVY;
1961	case SVGA3D_YUY2:
1962	return D3DFMT_YUY2;
1963
1964	/* Planar video formats */
1965	case SVGA3D_NV12:
1966	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1967
1968	/* Video format with alpha */
1969	case SVGA3D_AYUV:
1970	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1971
1972	case SVGA3D_BC4_UNORM:
1973	case SVGA3D_BC5_UNORM:
1974	/* Unknown; only in DX10 & 11 */
1975	break;
1976	#endif
1977	default:
1978	AssertMsgFailed(("Unsupported format %d\n", format));
1979	break;
1980	}
1981	}
1982
1983
1984	#if 0
1985	/**
1986	* Convert SVGA multi sample count value to its D3D equivalent
1987	*/
1988	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1989	{
1990	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1991	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1992
1993	if (multisampleCount > 16)
1994	return D3DMULTISAMPLE_NONE;
1995
1996	/* @todo exact same mapping as d3d? */
1997	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1998	}
1999	#endif
2000
2001	int vmsvga3dSurfaceDefine(PVGASTATE pThis, uint32_t sid, uint32_t surfaceFlags, SVGA3dSurfaceFormat format, SVGA3dSurfaceFace face[SVGA3D_MAX_SURFACE_FACES],
2002	uint32_t multisampleCount, SVGA3dTextureFilter autogenFilter, uint32_t cMipLevels, SVGA3dSize *pMipLevelSize)
2003	{
2004	PVMSVGA3DSURFACE pSurface;
2005	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
2006	AssertReturn(pState, VERR_NO_MEMORY);
2007
2008	Log(("vmsvga3dSurfaceDefine: sid=%x surfaceFlags=%x format=%s (%x) multiSampleCount=%d autogenFilter=%d, cMipLevels=%d size=(%d,%d,%d)\n",
2009	sid, surfaceFlags, vmsvgaSurfaceType2String(format), format, multisampleCount, autogenFilter, cMipLevels, pMipLevelSize->width, pMipLevelSize->height, pMipLevelSize->depth));
2010
2011	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2012	AssertReturn(cMipLevels >= 1, VERR_INVALID_PARAMETER);
2013	/* Assuming all faces have the same nr of mipmaps. */
2014	AssertReturn(!(surfaceFlags & SVGA3D_SURFACE_CUBEMAP) \|\| cMipLevels == face[0].numMipLevels * 6, VERR_INVALID_PARAMETER);
2015	AssertReturn((surfaceFlags & SVGA3D_SURFACE_CUBEMAP) \|\| cMipLevels == face[0].numMipLevels, VERR_INVALID_PARAMETER);
2016
2017	if (sid >= pState->cSurfaces)
2018	{
2019	pState->paSurface = (PVMSVGA3DSURFACE )RTMemRealloc(pState->paSurface, sizeof(VMSVGA3DSURFACE) * (sid + 1));
2020	AssertReturn(pState->paSurface, VERR_NO_MEMORY);
2021	memset(&pState->paSurface[pState->cSurfaces], 0, sizeof(VMSVGA3DSURFACE) * (sid + 1 - pState->cSurfaces));
2022	for (uint32_t i = pState->cSurfaces; i < sid + 1; i++)
2023	pState->paSurface[i].id = SVGA3D_INVALID_ID;
2024
2025	pState->cSurfaces = sid + 1;
2026	}
2027	/* If one already exists with this id, then destroy it now. */
2028	if (pState->paSurface[sid].id != SVGA3D_INVALID_ID)
2029	vmsvga3dSurfaceDestroy(pThis, sid);
2030
2031	pSurface = &pState->paSurface[sid];
2032	memset(pSurface, 0, sizeof(*pSurface));
2033	pSurface->id = sid;
2034	pSurface->idAssociatedContext = SVGA3D_INVALID_ID;
2035	vmsvga3dSurfaceFormat2OGL(pSurface, format);
2036
2037	pSurface->oglId.buffer = OPENGL_INVALID_ID;
2038
2039	/* The surface type is sort of undefined now, even though the hints and format can help to clear that up.
2040	* In some case we'll have to wait until the surface is used to create the D3D object.
2041	*/
2042	switch (format)
2043	{
2044	case SVGA3D_Z_D32:
2045	case SVGA3D_Z_D16:
2046	case SVGA3D_Z_D24S8:
2047	case SVGA3D_Z_D15S1:
2048	case SVGA3D_Z_D24X8:
2049	case SVGA3D_Z_DF16:
2050	case SVGA3D_Z_DF24:
2051	case SVGA3D_Z_D24S8_INT:
2052	surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
2053	break;
2054
2055	/* Texture compression formats */
2056	case SVGA3D_DXT1:
2057	case SVGA3D_DXT2:
2058	case SVGA3D_DXT3:
2059	case SVGA3D_DXT4:
2060	case SVGA3D_DXT5:
2061	/* Bump-map formats */
2062	case SVGA3D_BUMPU8V8:
2063	case SVGA3D_BUMPL6V5U5:
2064	case SVGA3D_BUMPX8L8V8U8:
2065	case SVGA3D_BUMPL8V8U8:
2066	case SVGA3D_V8U8:
2067	case SVGA3D_Q8W8V8U8:
2068	case SVGA3D_CxV8U8:
2069	case SVGA3D_X8L8V8U8:
2070	case SVGA3D_A2W10V10U10:
2071	case SVGA3D_V16U16:
2072	/* Typical render target formats; we should allow render target buffers to be used as textures. */
2073	case SVGA3D_X8R8G8B8:
2074	case SVGA3D_A8R8G8B8:
2075	case SVGA3D_R5G6B5:
2076	case SVGA3D_X1R5G5B5:
2077	case SVGA3D_A1R5G5B5:
2078	case SVGA3D_A4R4G4B4:
2079	surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2080	break;
2081
2082	case SVGA3D_LUMINANCE8:
2083	case SVGA3D_LUMINANCE4_ALPHA4:
2084	case SVGA3D_LUMINANCE16:
2085	case SVGA3D_LUMINANCE8_ALPHA8:
2086	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB */
2087	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB */
2088	case SVGA3D_A2R10G10B10:
2089	case SVGA3D_ALPHA8:
2090	case SVGA3D_R_S10E5:
2091	case SVGA3D_R_S23E8:
2092	case SVGA3D_RG_S10E5:
2093	case SVGA3D_RG_S23E8:
2094	case SVGA3D_G16R16:
2095	case SVGA3D_A16B16G16R16:
2096	case SVGA3D_UYVY:
2097	case SVGA3D_YUY2:
2098	case SVGA3D_NV12:
2099	case SVGA3D_AYUV:
2100	case SVGA3D_BC4_UNORM:
2101	case SVGA3D_BC5_UNORM:
2102	break;
2103
2104	/*
2105	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
2106	* the most efficient format to use when creating new surfaces
2107	* expressly for index or vertex data.
2108	*/
2109	case SVGA3D_BUFFER:
2110	break;
2111
2112	default:
2113	break;
2114	}
2115
2116	pSurface->flags = surfaceFlags;
2117	pSurface->format = format;
2118	memcpy(pSurface->faces, face, sizeof(face));
2119	pSurface->cFaces = 1; /* check for cube maps later */
2120	pSurface->multiSampleCount = multisampleCount;
2121	pSurface->autogenFilter = autogenFilter;
2122	Assert(autogenFilter != SVGA3D_TEX_FILTER_FLATCUBIC);
2123	Assert(autogenFilter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2124	pSurface->pMipmapLevels = (PVMSVGA3DMIPMAPLEVEL)RTMemAllocZ(cMipLevels * sizeof(VMSVGA3DMIPMAPLEVEL));
2125	AssertReturn(pSurface->pMipmapLevels, VERR_NO_MEMORY);
2126
2127	for (uint32_t i=0; i < cMipLevels; i++)
2128	pSurface->pMipmapLevels[i].size = pMipLevelSize[i];
2129
2130	pSurface->cbBlock = vmsvga3dSurfaceFormatSize(format);
2131
2132	switch (surfaceFlags & (SVGA3D_SURFACE_HINT_INDEXBUFFER \| SVGA3D_SURFACE_HINT_VERTEXBUFFER \| SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET \| SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_CUBEMAP))
2133	{
2134	case SVGA3D_SURFACE_CUBEMAP:
2135	Log(("SVGA3D_SURFACE_CUBEMAP\n"));
2136	pSurface->cFaces = 6;
2137	break;
2138
2139	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2140	Log(("SVGA3D_SURFACE_HINT_INDEXBUFFER\n"));
2141	/* else type unknown at this time; postpone buffer creation */
2142	break;
2143
2144	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2145	Log(("SVGA3D_SURFACE_HINT_VERTEXBUFFER\n"));
2146	/* Type unknown at this time; postpone buffer creation */
2147	break;
2148
2149	case SVGA3D_SURFACE_HINT_TEXTURE:
2150	Log(("SVGA3D_SURFACE_HINT_TEXTURE\n"));
2151	break;
2152
2153	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2154	Log(("SVGA3D_SURFACE_HINT_RENDERTARGET\n"));
2155	break;
2156
2157	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2158	Log(("SVGA3D_SURFACE_HINT_DEPTHSTENCIL\n"));
2159	break;
2160
2161	default:
2162	/* Unknown; decide later. */
2163	break;
2164	}
2165
2166	/* Allocate buffer to hold the surface data until we can move it into a D3D object */
2167	for (uint32_t iFace=0; iFace < pSurface->cFaces; iFace++)
2168	{
2169	for (uint32_t i=0; i < pSurface->faces[iFace].numMipLevels; i++)
2170	{
2171	uint32_t idx = i + iFace * pSurface->faces[0].numMipLevels;
2172
2173	Log(("vmsvga3dSurfaceDefine: face %d mip level %d (%d,%d,%d)\n", iFace, i, pSurface->pMipmapLevels[idx].size.width, pSurface->pMipmapLevels[idx].size.height, pSurface->pMipmapLevels[idx].size.depth));
2174	Log(("vmsvga3dSurfaceDefine: cbPitch=%x cbBlock=%x \n", pSurface->cbBlock * pSurface->pMipmapLevels[idx].size.width, pSurface->cbBlock));
2175
2176	pSurface->pMipmapLevels[idx].cbSurfacePitch = pSurface->cbBlock * pSurface->pMipmapLevels[idx].size.width;
2177	pSurface->pMipmapLevels[idx].cbSurface = pSurface->pMipmapLevels[idx].cbSurfacePitch * pSurface->pMipmapLevels[idx].size.height * pSurface->pMipmapLevels[idx].size.depth;
2178	pSurface->pMipmapLevels[idx].pSurfaceData = RTMemAllocZ(pSurface->pMipmapLevels[idx].cbSurface);
2179	AssertReturn(pSurface->pMipmapLevels[idx].pSurfaceData, VERR_NO_MEMORY);
2180	}
2181	}
2182	return VINF_SUCCESS;
2183	}
2184
2185	int vmsvga3dSurfaceDestroy(PVGASTATE pThis, uint32_t sid)
2186	{
2187	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
2188	AssertReturn(pState, VERR_NO_MEMORY);
2189
2190	if ( sid < pState->cSurfaces
2191	&& pState->paSurface[sid].id == sid)
2192	{
2193	PVMSVGA3DSURFACE pSurface = &pState->paSurface[sid];
2194	PVMSVGA3DCONTEXT pContext = NULL;
2195
2196	Log(("vmsvga3dSurfaceDestroy id %x\n", sid));
2197
2198	/* @todo stricter checks for associated context */
2199	uint32_t cid = pSurface->idAssociatedContext;
2200	if ( cid <= pState->cContexts
2201	&& pState->paContext[cid].id == cid)
2202	{
2203	pContext = &pState->paContext[cid];
2204	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2205	}
2206	else
2207	{
2208	/* Pick any active context; we need something here */
2209	for (cid = 0; cid < pState->cContexts; cid++)
2210	{
2211	if (pState->paContext[cid].id == cid)
2212	{
2213	pContext = &pState->paContext[cid];
2214	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2215	break;
2216	}
2217	}
2218	AssertReturn(pContext, VERR_INTERNAL_ERROR); /* otherwise crashes/fails */
2219	}
2220
2221	switch (pSurface->flags & (SVGA3D_SURFACE_HINT_INDEXBUFFER \| SVGA3D_SURFACE_HINT_VERTEXBUFFER \| SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET \| SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_CUBEMAP))
2222	{
2223	case SVGA3D_SURFACE_CUBEMAP:
2224	AssertFailed(); /* @todo */
2225	break;
2226
2227	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2228	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2229	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
2230	{
2231	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
2232	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2233	}
2234	break;
2235
2236	case SVGA3D_SURFACE_HINT_TEXTURE:
2237	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2238	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
2239	{
2240	glDeleteTextures(1, &pSurface->oglId.texture);
2241	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2242	}
2243	break;
2244
2245	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2246	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2247	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /* @todo actual texture surface not supported */
2248	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
2249	{
2250	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
2251	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2252	}
2253	break;
2254
2255	default:
2256	break;
2257	}
2258
2259	if (pSurface->pMipmapLevels)
2260	{
2261	for (uint32_t face=0; face < pSurface->cFaces; face++)
2262	{
2263	for (uint32_t i=0; i < pSurface->faces[face].numMipLevels; i++)
2264	{
2265	uint32_t idx = i + face * pSurface->faces[0].numMipLevels;
2266	if (pSurface->pMipmapLevels[idx].pSurfaceData)
2267	RTMemFree(pSurface->pMipmapLevels[idx].pSurfaceData);
2268	}
2269	}
2270	RTMemFree(pSurface->pMipmapLevels);
2271	}
2272
2273	memset(pSurface, 0, sizeof(*pSurface));
2274	pSurface->id = SVGA3D_INVALID_ID;
2275	}
2276	else
2277	AssertFailedReturn(VERR_INVALID_PARAMETER);
2278
2279	return VINF_SUCCESS;
2280	}
2281
2282	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
2283	{
2284	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
2285	uint32_t sidSrc = src.sid;
2286	uint32_t sidDest = dest.sid;
2287	int rc = VINF_SUCCESS;
2288
2289	AssertReturn(pState, VERR_NO_MEMORY);
2290	AssertReturn(sidSrc < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2291	AssertReturn(sidSrc < pState->cSurfaces && pState->paSurface[sidSrc].id == sidSrc, VERR_INVALID_PARAMETER);
2292	AssertReturn(sidDest < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2293	AssertReturn(sidDest < pState->cSurfaces && pState->paSurface[sidDest].id == sidDest, VERR_INVALID_PARAMETER);
2294
2295	for (uint32_t i = 0; i < cCopyBoxes; i++)
2296	{
2297	SVGA3dBox destBox, srcBox;
2298
2299	srcBox.x = pBox[i].srcx;
2300	srcBox.y = pBox[i].srcy;
2301	srcBox.z = pBox[i].srcz;
2302	srcBox.w = pBox[i].w;
2303	srcBox.h = pBox[i].h;
2304	srcBox.d = pBox[i].z;
2305
2306	destBox.x = pBox[i].x;
2307	destBox.y = pBox[i].y;
2308	destBox.z = pBox[i].z;
2309	destBox.w = pBox[i].w;
2310	destBox.h = pBox[i].h;
2311	destBox.z = pBox[i].z;
2312
2313	rc = vmsvga3dSurfaceStretchBlt(pThis, dest, destBox, src, srcBox, SVGA3D_STRETCH_BLT_LINEAR);
2314	AssertRCReturn(rc, rc);
2315	}
2316	return VINF_SUCCESS;
2317	}
2318
2319	/* Create D3D texture object for the specified surface. */
2320	static int vmsvga3dCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext, PVMSVGA3DSURFACE pSurface)
2321	{
2322	GLint activeTexture = 0;
2323
2324	glGenTextures(1, &pSurface->oglId.texture);
2325	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2326	/* @todo Set the mip map generation filter settings. */
2327
2328	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2329	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2330
2331	/* Must bind texture to the current context in order to change it. */
2332	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2333	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2334
2335	if (pSurface->fDirty)
2336	{
2337	Log(("vmsvga3dCreateTexture: sync dirty texture\n"));
2338	for (uint32_t i = 0; i < pSurface->faces[0].numMipLevels; i++)
2339	{
2340	if (pSurface->pMipmapLevels[i].fDirty)
2341	{
2342	Log(("vmsvga3dCreateTexture: sync dirty texture mipmap level %d (pitch %x)\n", i, pSurface->pMipmapLevels[i].cbSurfacePitch));
2343
2344	glTexImage2D(GL_TEXTURE_2D,
2345	i,
2346	pSurface->internalFormatGL,
2347	pSurface->pMipmapLevels[i].size.width,
2348	pSurface->pMipmapLevels[i].size.height,
2349	0,
2350	pSurface->formatGL,
2351	pSurface->typeGL,
2352	pSurface->pMipmapLevels[i].pSurfaceData);
2353
2354	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2355
2356	pSurface->pMipmapLevels[i].fDirty = false;
2357	}
2358	}
2359	pSurface->fDirty = false;
2360	}
2361	else
2362	/* Reserve texture memory. */
2363	glTexImage2D(GL_TEXTURE_2D,
2364	0,
2365	pSurface->internalFormatGL,
2366	pSurface->pMipmapLevels[0].size.width,
2367	pSurface->pMipmapLevels[0].size.height,
2368	0,
2369	pSurface->formatGL,
2370	pSurface->typeGL,
2371	NULL);
2372
2373	/* Restore the old active texture. */
2374	glBindTexture(GL_TEXTURE_2D, activeTexture);
2375	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2376
2377	pSurface->flags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2378	pSurface->idAssociatedContext = idAssociatedContext;
2379	return VINF_SUCCESS;
2380	}
2381
2382	int vmsvga3dSurfaceStretchBlt(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dBox destBox, SVGA3dSurfaceImageId src, SVGA3dBox srcBox, SVGA3dStretchBltMode mode)
2383	{
2384	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
2385	PVMSVGA3DSURFACE pSurfaceSrc;
2386	uint32_t sidSrc = src.sid;
2387	PVMSVGA3DSURFACE pSurfaceDest;
2388	uint32_t sidDest = dest.sid;
2389	int rc = VINF_SUCCESS;
2390	uint32_t cid;
2391	PVMSVGA3DCONTEXT pContext;
2392
2393	AssertReturn(pState, VERR_NO_MEMORY);
2394	AssertReturn(sidSrc < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2395	AssertReturn(sidSrc < pState->cSurfaces && pState->paSurface[sidSrc].id == sidSrc, VERR_INVALID_PARAMETER);
2396	AssertReturn(sidDest < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2397	AssertReturn(sidDest < pState->cSurfaces && pState->paSurface[sidDest].id == sidDest, VERR_INVALID_PARAMETER);
2398
2399	pSurfaceSrc = &pState->paSurface[sidSrc];
2400	pSurfaceDest = &pState->paSurface[sidDest];
2401	AssertReturn(pSurfaceSrc->faces[0].numMipLevels > src.mipmap, VERR_INVALID_PARAMETER);
2402	AssertReturn(pSurfaceDest->faces[0].numMipLevels > dest.mipmap, VERR_INVALID_PARAMETER);
2403
2404	Log(("vmsvga3dSurfaceStretchBlt: src sid=%x (%d,%d)(%d,%d) dest sid=%x (%d,%d)(%d,%d) mode=%x\n", src.sid, srcBox.x, srcBox.y, srcBox.x + srcBox.w, srcBox.y + srcBox.h, dest.sid, destBox.x, destBox.y, destBox.x + destBox.w, destBox.y + destBox.h, mode));
2405
2406	/* @todo stricter checks for associated context */
2407	cid = pSurfaceDest->idAssociatedContext;
2408	if (cid == SVGA3D_INVALID_ID)
2409	cid = pSurfaceSrc->idAssociatedContext;
2410
2411	if ( cid >= pState->cContexts
2412	\|\| pState->paContext[cid].id != cid)
2413	{
2414	Log(("vmsvga3dSurfaceStretchBlt invalid context id!\n"));
2415	AssertFailedReturn(VERR_INVALID_PARAMETER);
2416	}
2417	pContext = &pState->paContext[cid];
2418	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2419
2420	if (pSurfaceSrc->oglId.texture == OPENGL_INVALID_ID)
2421	{
2422	/* Unknown surface type; turn it into a texture, which can be used for other purposes too. */
2423	Log(("vmsvga3dSurfaceStretchBlt: unknown src surface id=%x type=%d format=%d -> create texture\n", sidSrc, pSurfaceSrc->flags, pSurfaceSrc->format));
2424	rc = vmsvga3dCreateTexture(pState, pContext, cid, pSurfaceSrc);
2425	AssertRCReturn(rc, rc);
2426	}
2427
2428	if (pSurfaceDest->oglId.texture == OPENGL_INVALID_ID)
2429	{
2430	/* Unknown surface type; turn it into a texture, which can be used for other purposes too. */
2431	Log(("vmsvga3dSurfaceStretchBlt: unknown dest surface id=%x type=%d format=%d -> create texture\n", sidDest, pSurfaceDest->flags, pSurfaceDest->format));
2432	rc = vmsvga3dCreateTexture(pState, pContext, cid, pSurfaceDest);
2433	AssertRCReturn(rc, rc);
2434	}
2435
2436	/* Activate the read and draw framebuffer objects. */
2437	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2438	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2439	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2440	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2441
2442	/* Bind the source and destination objects to the right place. */
2443	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurfaceSrc->oglId.texture, src.mipmap);
2444	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2445	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurfaceDest->oglId.texture, dest.mipmap);
2446	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2447
2448	Log(("src conv. (%d,%d)(%d,%d); dest conv (%d,%d)(%d,%d)\n", srcBox.x, D3D_TO_OGL_Y_COORD(pSurfaceSrc, srcBox.y + srcBox.h),
2449	srcBox.x + srcBox.w, D3D_TO_OGL_Y_COORD(pSurfaceSrc, srcBox.y), destBox.x, D3D_TO_OGL_Y_COORD(pSurfaceDest, destBox.y + destBox.h),
2450	destBox.x + destBox.w, D3D_TO_OGL_Y_COORD(pSurfaceDest, destBox.y)));
2451
2452	pState->ext.glBlitFramebuffer(srcBox.x,
2453	#ifdef MANUAL_FLIP_SURFACE_DATA
2454	D3D_TO_OGL_Y_COORD(pSurfaceSrc, srcBox.y + srcBox.h), /* inclusive */
2455	#else
2456	srcBox.y,
2457	#endif
2458	srcBox.x + srcBox.w, /* exclusive. */
2459	#ifdef MANUAL_FLIP_SURFACE_DATA
2460	D3D_TO_OGL_Y_COORD(pSurfaceSrc, srcBox.y), /* exclusive */
2461	#else
2462	srcBox.y + srcBox.h,
2463	#endif
2464	destBox.x,
2465	#ifdef MANUAL_FLIP_SURFACE_DATA
2466	D3D_TO_OGL_Y_COORD(pSurfaceDest, destBox.y + destBox.h), /* inclusive. */
2467	#else
2468	destBox.y,
2469	#endif
2470	destBox.x + destBox.w, /* exclusive. */
2471	#ifdef MANUAL_FLIP_SURFACE_DATA
2472	D3D_TO_OGL_Y_COORD(pSurfaceDest, destBox.y), /* exclusive */
2473	#else
2474	destBox.y + destBox.h,
2475	#endif
2476	GL_COLOR_BUFFER_BIT,
2477	(mode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2478	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2479
2480	/* Reset the frame buffer association */
2481	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2482	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2483
2484	return VINF_SUCCESS;
2485	}
2486
2487	int vmsvga3dSurfaceDMA(PVGASTATE pThis, SVGA3dGuestImage guest, SVGA3dSurfaceImageId host, SVGA3dTransferType transfer, uint32_t cCopyBoxes, SVGA3dCopyBox *pBoxes)
2488	{
2489	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
2490	PVMSVGA3DSURFACE pSurface;
2491	PVMSVGA3DMIPMAPLEVEL pMipLevel;
2492	uint32_t sid = host.sid;
2493	int rc = VINF_SUCCESS;
2494
2495	AssertReturn(pState, VERR_NO_MEMORY);
2496	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2497	AssertReturn(sid < pState->cSurfaces && pState->paSurface[sid].id == sid, VERR_INVALID_PARAMETER);
2498
2499	pSurface = &pState->paSurface[sid];
2500	AssertReturn(pSurface->faces[0].numMipLevels > host.mipmap, VERR_INVALID_PARAMETER);
2501	pMipLevel = &pSurface->pMipmapLevels[host.mipmap];
2502
2503	if (pSurface->flags & SVGA3D_SURFACE_HINT_TEXTURE)
2504	Log(("vmsvga3dSurfaceDMA TEXTURE guestptr gmr=%x offset=%x pitch=%x host sid=%x face=%d mipmap=%d transfer=%x cCopyBoxes=%d\n", guest.ptr.gmrId, guest.ptr.offset, guest.pitch, host.sid, host.face, host.mipmap, transfer, cCopyBoxes));
2505	else
2506	Log(("vmsvga3dSurfaceDMA guestptr gmr=%x offset=%x pitch=%x host sid=%x face=%d mipmap=%d transfer=%x cCopyBoxes=%d\n", guest.ptr.gmrId, guest.ptr.offset, guest.pitch, host.sid, host.face, host.mipmap, transfer, cCopyBoxes));
2507
2508	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2509	{
2510	AssertReturn(pSurface->pMipmapLevels[host.mipmap].pSurfaceData, VERR_INTERNAL_ERROR);
2511
2512	for (unsigned i = 0; i < cCopyBoxes; i++)
2513	{
2514	unsigned uDestOffset;
2515	unsigned cbSrcPitch;
2516	uint8_t *pBufferStart;
2517
2518	Log(("Copy box %d (%d,%d,%d)(%d,%d,%d) dest (%d,%d)\n", i, pBoxes[i].srcx, pBoxes[i].srcy, pBoxes[i].srcz, pBoxes[i].w, pBoxes[i].h, pBoxes[i].d, pBoxes[i].x, pBoxes[i].y));
2519	/* Apparently we're supposed to clip it (gmr test sample) */
2520	if (pBoxes[i].x + pBoxes[i].w > pMipLevel->size.width)
2521	pBoxes[i].w = pMipLevel->size.width - pBoxes[i].x;
2522	if (pBoxes[i].y + pBoxes[i].h > pMipLevel->size.height)
2523	pBoxes[i].h = pMipLevel->size.height - pBoxes[i].y;
2524	if (pBoxes[i].z + pBoxes[i].d > pMipLevel->size.depth)
2525	pBoxes[i].d = pMipLevel->size.depth - pBoxes[i].z;
2526
2527	if ( !pBoxes[i].w
2528	\|\| !pBoxes[i].h
2529	\|\| !pBoxes[i].d
2530	\|\| pBoxes[i].x > pMipLevel->size.width
2531	\|\| pBoxes[i].y > pMipLevel->size.height
2532	\|\| pBoxes[i].z > pMipLevel->size.depth)
2533	{
2534	Log(("Empty box; skip\n"));
2535	continue;
2536	}
2537
2538	uDestOffset = pBoxes[i].x * pSurface->cbBlock + pBoxes[i].y * pMipLevel->cbSurfacePitch + pBoxes[i].z * pMipLevel->size.height * pMipLevel->cbSurfacePitch;
2539	AssertReturn(uDestOffset + pBoxes[i].w * pSurface->cbBlock * pBoxes[i].h * pBoxes[i].d <= pMipLevel->cbSurface, VERR_INTERNAL_ERROR);
2540
2541	cbSrcPitch = (guest.pitch == 0) ? pBoxes[i].w * pSurface->cbBlock : guest.pitch;
2542	#ifdef MANUAL_FLIP_SURFACE_DATA
2543	pBufferStart = (uint8_t *)pMipLevel->pSurfaceData
2544	+ pBoxes[i].x * pSurface->cbBlock
2545	+ pMipLevel->cbSurface - pBoxes[i].y * pMipLevel->cbSurfacePitch
2546	- pMipLevel->cbSurfacePitch; /* flip image during copy */
2547	#else
2548	pBufferStart = (uint8_t *)pMipLevel->pSurfaceData + uDestOffset;
2549	#endif
2550	rc = vmsvgaGMRTransfer(pThis,
2551	transfer,
2552	pBufferStart,
2553	#ifdef MANUAL_FLIP_SURFACE_DATA
2554	-(int32_t)pMipLevel->cbSurfacePitch,
2555	#else
2556	(int32_t)pMipLevel->cbSurfacePitch,
2557	#endif
2558	guest.ptr,
2559	pBoxes[i].srcx * pSurface->cbBlock + (pBoxes[i].srcy + pBoxes[i].srcz * pBoxes[i].h) * cbSrcPitch,
2560	cbSrcPitch,
2561	pBoxes[i].w * pSurface->cbBlock,
2562	pBoxes[i].d * pBoxes[i].h);
2563
2564	Log4(("first line:\n%.*Rhxd\n", pMipLevel->cbSurface, pMipLevel->pSurfaceData));
2565
2566	AssertRC(rc);
2567	}
2568	pSurface->pMipmapLevels[host.mipmap].fDirty = true;
2569	pSurface->fDirty = true;
2570	}
2571	else
2572	{
2573	/* @todo stricter checks for associated context */
2574	uint32_t cid = pSurface->idAssociatedContext;
2575	if ( cid >= pState->cContexts
2576	\|\| pState->paContext[cid].id != cid)
2577	{
2578	Log(("vmsvga3dSurfaceDMA invalid context id (%x - %x)!\n", cid, (cid >= pState->cContexts) ? -1 : pState->paContext[cid].id));
2579	AssertFailedReturn(VERR_INVALID_PARAMETER);
2580	}
2581	PVMSVGA3DCONTEXT pContext = &pState->paContext[cid];
2582	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2583
2584	for (unsigned i = 0; i < cCopyBoxes; i++)
2585	{
2586	bool fVertex = false;
2587	unsigned cbSrcPitch;
2588
2589	/* Apparently we're supposed to clip it (gmr test sample) */
2590	if (pBoxes[i].x + pBoxes[i].w > pMipLevel->size.width)
2591	pBoxes[i].w = pMipLevel->size.width - pBoxes[i].x;
2592	if (pBoxes[i].y + pBoxes[i].h > pMipLevel->size.height)
2593	pBoxes[i].h = pMipLevel->size.height - pBoxes[i].y;
2594	if (pBoxes[i].z + pBoxes[i].d > pMipLevel->size.depth)
2595	pBoxes[i].d = pMipLevel->size.depth - pBoxes[i].z;
2596
2597	Assert((pBoxes[i].d == 1 \|\| pBoxes[i].d == 0) && pBoxes[i].z == 0);
2598
2599	if ( !pBoxes[i].w
2600	\|\| !pBoxes[i].h
2601	\|\| pBoxes[i].x > pMipLevel->size.width
2602	\|\| pBoxes[i].y > pMipLevel->size.height)
2603	{
2604	Log(("Empty box; skip\n"));
2605	continue;
2606	}
2607
2608	Log(("Copy box %d (%d,%d,%d)(%d,%d,%d) dest (%d,%d)\n", i, pBoxes[i].srcx, pBoxes[i].srcy, pBoxes[i].srcz, pBoxes[i].w, pBoxes[i].h, pBoxes[i].d, pBoxes[i].x, pBoxes[i].y));
2609
2610	cbSrcPitch = (guest.pitch == 0) ? pBoxes[i].w * pSurface->cbBlock : guest.pitch;
2611
2612	switch (pSurface->flags & (SVGA3D_SURFACE_HINT_INDEXBUFFER \| SVGA3D_SURFACE_HINT_VERTEXBUFFER \| SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET \| SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_CUBEMAP))
2613	{
2614	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2615	case SVGA3D_SURFACE_HINT_TEXTURE:
2616	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2617	{
2618	uint32_t cbSurfacePitch;
2619	uint8_t pDoubleBuffer, pBufferStart;
2620	unsigned uDestOffset = 0;
2621
2622	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
2623	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2624
2625	if (transfer == SVGA3D_READ_HOST_VRAM)
2626	{
2627	GLint activeTexture;
2628
2629	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2630	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2631
2632	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2633	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2634
2635	glGetTexImage(GL_TEXTURE_2D,
2636	host.mipmap,
2637	pSurface->formatGL,
2638	pSurface->typeGL,
2639	pDoubleBuffer);
2640	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2641
2642	/* Restore the old active texture. */
2643	glBindTexture(GL_TEXTURE_2D, activeTexture);
2644	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2645
2646	uDestOffset = pBoxes[i].x * pSurface->cbBlock + pBoxes[i].y * pMipLevel->cbSurfacePitch;
2647	AssertReturn(uDestOffset + pBoxes[i].w * pSurface->cbBlock + (pBoxes[i].h - 1) * pMipLevel->cbSurfacePitch <= pMipLevel->cbSurface, VERR_INTERNAL_ERROR);
2648
2649	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2650
2651	#ifdef MANUAL_FLIP_SURFACE_DATA
2652	pBufferStart = pDoubleBuffer
2653	+ pBoxes[i].x * pSurface->cbBlock
2654	+ pMipLevel->cbSurface - pBoxes[i].y * cbSurfacePitch
2655	- cbSurfacePitch; /* flip image during copy */
2656	#else
2657	pBufferStart = pDoubleBuffer + uDestOffset;
2658	#endif
2659	}
2660	else
2661	{
2662	cbSurfacePitch = pBoxes[i].w * pSurface->cbBlock;
2663	#ifdef MANUAL_FLIP_SURFACE_DATA
2664	pBufferStart = pDoubleBuffer + cbSurfacePitch * pBoxes[i].h - cbSurfacePitch; /* flip image during copy */
2665	#else
2666	pBufferStart = pDoubleBuffer;
2667	#endif
2668	}
2669
2670	rc = vmsvgaGMRTransfer(pThis,
2671	transfer,
2672	pBufferStart,
2673	#ifdef MANUAL_FLIP_SURFACE_DATA
2674	-(int32_t)cbSurfacePitch,
2675	#else
2676	(int32_t)cbSurfacePitch,
2677	#endif
2678	guest.ptr,
2679	pBoxes[i].srcx * pSurface->cbBlock + pBoxes[i].srcy * cbSrcPitch,
2680	cbSrcPitch,
2681	pBoxes[i].w * pSurface->cbBlock,
2682	pBoxes[i].h);
2683	AssertRC(rc);
2684
2685	/* Update the opengl surface data. */
2686	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2687	{
2688	GLint activeTexture = 0;
2689	GLint alignment;
2690
2691	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2692	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2693
2694	/* Must bind texture to the current context in order to change it. */
2695	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2696	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2697
2698	Log(("vmsvga3dSurfaceDMA: copy texture mipmap level %d (pitch %x)\n", host.mipmap, pMipLevel->cbSurfacePitch));
2699
2700	/* Set row length and alignment of the input data. */
2701	glGetIntegerv(GL_UNPACK_ALIGNMENT, &alignment);
2702	glPixelStorei(GL_UNPACK_ROW_LENGTH, pBoxes[i].w);
2703	glPixelStorei(GL_UNPACK_ALIGNMENT, pSurface->cbBlock);
2704
2705	glTexSubImage2D(GL_TEXTURE_2D,
2706	host.mipmap,
2707	pBoxes[i].x,
2708	pBoxes[i].y,
2709	pBoxes[i].w,
2710	pBoxes[i].h,
2711	pSurface->formatGL,
2712	pSurface->typeGL,
2713	pDoubleBuffer);
2714
2715	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2716
2717	/* Restore old values. */
2718	glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
2719	glPixelStorei(GL_UNPACK_ALIGNMENT, alignment);
2720
2721	/* Restore the old active texture. */
2722	glBindTexture(GL_TEXTURE_2D, activeTexture);
2723	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2724	}
2725
2726	Log4(("first line:\n%.Rhxd\n", pBoxes[i].w pSurface->cbBlock, pDoubleBuffer));
2727
2728	/* Free the double buffer. */
2729	RTMemFree(pDoubleBuffer);
2730	break;
2731	}
2732
2733	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2734	AssertFailed(); /* @todo */
2735	break;
2736
2737	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2738	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2739	{
2740	uint8_t *pData;
2741	unsigned uDestOffset;
2742
2743	Assert(pBoxes[i].h == 1);
2744
2745	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2746	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2747
2748	pData = (uint8_t *)pState->ext.glMapBuffer(GL_ARRAY_BUFFER, (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY);
2749	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2750	Assert(pData);
2751
2752	uDestOffset = pBoxes[i].x * pSurface->cbBlock + pBoxes[i].y * pMipLevel->cbSurfacePitch;
2753	AssertReturn(uDestOffset + pBoxes[i].w * pSurface->cbBlock + (pBoxes[i].h - 1) * pMipLevel->cbSurfacePitch <= pMipLevel->cbSurface, VERR_INTERNAL_ERROR);
2754
2755	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n", (fVertex) ? "vertex" : "index", pBoxes[i].x, pBoxes[i].y, pBoxes[i].x + pBoxes[i].w, pBoxes[i].y + pBoxes[i].h));
2756
2757	rc = vmsvgaGMRTransfer(pThis,
2758	transfer,
2759	pData + uDestOffset,
2760	pMipLevel->cbSurfacePitch,
2761	guest.ptr,
2762	pBoxes[i].srcx * pSurface->cbBlock + pBoxes[i].srcy * cbSrcPitch,
2763	cbSrcPitch,
2764	pBoxes[i].w * pSurface->cbBlock,
2765	pBoxes[i].h);
2766	AssertRC(rc);
2767
2768	Log4(("first line:\n%.*Rhxd\n", cbSrcPitch, pData));
2769
2770	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2771	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2772
2773	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2774	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2775	break;
2776	}
2777
2778	default:
2779	AssertFailed();
2780	break;
2781	}
2782	}
2783	}
2784	return rc;
2785	}
2786
2787	int vmsvga3dSurfaceBlitToScreen(PVGASTATE pThis, uint32_t dest, SVGASignedRect destRect, SVGA3dSurfaceImageId src, SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *pRect)
2788	{
2789	/* Requires SVGA_FIFO_CAP_SCREEN_OBJECT support */
2790	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));
2791	for (uint32_t i = 0; i < cRects; i++)
2792	{
2793	Log(("vmsvga3dSurfaceBlitToScreen: clipping rect %d (%d,%d)(%d,%d)\n", i, pRect[i].left, pRect[i].top, pRect[i].right, pRect[i].bottom));
2794	}
2795
2796	/* @todo Only screen 0 for now. */
2797	AssertReturn(dest == 0, VERR_INTERNAL_ERROR);
2798	AssertReturn(src.mipmap == 0 && src.face == 0, VERR_INVALID_PARAMETER);
2799	/* @todo scaling */
2800	AssertReturn(destRect.right - destRect.left == srcRect.right - srcRect.left && destRect.bottom - destRect.top == srcRect.bottom - srcRect.top, VERR_INVALID_PARAMETER);
2801
2802	if (cRects == 0)
2803	{
2804	/* easy case; no clipping */
2805	SVGA3dCopyBox box;
2806	SVGA3dGuestImage dst;
2807
2808	box.x = destRect.left;
2809	box.y = destRect.top;
2810	box.z = 0;
2811	box.w = destRect.right - destRect.left;
2812	box.h = destRect.bottom - destRect.top;
2813	box.d = 1;
2814	box.srcx = srcRect.left;
2815	box.srcy = srcRect.top;
2816	box.srcz = 0;
2817
2818	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2819	dst.ptr.offset = 0;
2820	dst.pitch = pThis->svga.cbScanline;
2821
2822	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2823	AssertRCReturn(rc, rc);
2824
2825	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2826	return VINF_SUCCESS;
2827	}
2828	else
2829	{
2830	SVGA3dGuestImage dst;
2831	SVGA3dCopyBox box;
2832
2833	box.srcz = 0;
2834	box.z = 0;
2835	box.d = 1;
2836
2837	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2838	dst.ptr.offset = 0;
2839	dst.pitch = pThis->svga.cbScanline;
2840
2841	/* @todo merge into one SurfaceDMA call */
2842	for (uint32_t i = 0; i < cRects; i++)
2843	{
2844	/* The clipping rectangle is relative to the top-left corner of srcRect & destRect. Adjust here. */
2845	box.srcx = srcRect.left + pRect[i].left;
2846	box.srcy = srcRect.top + pRect[i].top;
2847
2848	box.x = pRect[i].left + destRect.left;
2849	box.y = pRect[i].top + destRect.top;
2850	box.z = 0;
2851	box.w = pRect[i].right - pRect[i].left;
2852	box.h = pRect[i].bottom - pRect[i].top;
2853
2854	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2855	AssertRCReturn(rc, rc);
2856
2857	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2858	}
2859
2860	return VINF_SUCCESS;
2861	}
2862	}
2863
2864	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
2865	{
2866	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
2867	PVMSVGA3DSURFACE pSurface;
2868	int rc = VINF_SUCCESS;
2869	PVMSVGA3DCONTEXT pContext;
2870	uint32_t cid;
2871	GLint activeTexture = 0;
2872
2873	AssertReturn(pState, VERR_NO_MEMORY);
2874	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2875	AssertReturn(sid < pState->cSurfaces && pState->paSurface[sid].id == sid, VERR_INVALID_PARAMETER);
2876
2877	pSurface = &pState->paSurface[sid];
2878	AssertReturn(pSurface->idAssociatedContext != SVGA3D_INVALID_ID, VERR_INTERNAL_ERROR);
2879
2880	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
2881	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2882	pSurface->autogenFilter = filter;
2883
2884	Log(("vmsvga3dGenerateMipmaps: sid=%x filter=%d\n", sid, filter));
2885
2886	/* @todo stricter checks for associated context */
2887	cid = pSurface->idAssociatedContext;
2888
2889	if ( cid >= pState->cContexts
2890	\|\| pState->paContext[cid].id != cid)
2891	{
2892	Log(("vmsvga3dGenerateMipmaps invalid context id!\n"));
2893	return VERR_INVALID_PARAMETER;
2894	}
2895	pContext = &pState->paContext[cid];
2896	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2897
2898	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2899	{
2900	/* Unknown surface type; turn it into a texture. */
2901	Log(("vmsvga3dGenerateMipmaps: unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->flags, pSurface->format));
2902	rc = vmsvga3dCreateTexture(pState, pContext, cid, pSurface);
2903	AssertRCReturn(rc, rc);
2904	}
2905	else
2906	{
2907	/* @todo new filter */
2908	AssertFailed();
2909	}
2910
2911	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2912	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2913
2914	/* Must bind texture to the current context in order to change it. */
2915	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2916	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2917
2918	/* Generate the mip maps. */
2919	pState->ext.glGenerateMipmap(GL_TEXTURE_2D);
2920	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2921
2922	/* Restore the old texture. */
2923	glBindTexture(GL_TEXTURE_2D, activeTexture);
2924	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2925
2926	return VINF_SUCCESS;
2927	}
2928
2929	int vmsvga3dCommandPresent(PVGASTATE pThis, uint32_t sid, uint32_t cRects, SVGA3dCopyRect *pRect)
2930	{
2931	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
2932	PVMSVGA3DSURFACE pSurface;
2933	int rc = VINF_SUCCESS;
2934	PVMSVGA3DCONTEXT pContext;
2935	uint32_t cid;
2936	struct
2937	{
2938	uint32_t x;
2939	uint32_t y;
2940	uint32_t cx;
2941	uint32_t cy;
2942	} srcViewPort;
2943
2944	AssertReturn(pState, VERR_NO_MEMORY);
2945	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2946	AssertReturn(sid < pState->cSurfaces && pState->paSurface[sid].id == sid, VERR_INVALID_PARAMETER);
2947
2948	pSurface = &pState->paSurface[sid];
2949	AssertReturn(pSurface->idAssociatedContext != SVGA3D_INVALID_ID, VERR_INTERNAL_ERROR);
2950
2951	/* @todo stricter checks for associated context */
2952	cid = pSurface->idAssociatedContext;
2953	Log(("vmsvga3dCommandPresent: sid=%x cRects=%d cid=%x\n", sid, cRects, cid));
2954	for (uint32_t i=0; i < cRects; i++)
2955	{
2956	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));
2957	}
2958
2959	if ( cid >= pState->cContexts
2960	\|\| pState->paContext[cid].id != cid)
2961	{
2962	Log(("vmsvga3dCommandPresent invalid context id!\n"));
2963	return VERR_INVALID_PARAMETER;
2964	}
2965	pContext = &pState->paContext[cid];
2966	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2967
2968	/* Source surface different size? */
2969	if (pSurface->pMipmapLevels[0].size.width != pThis->svga.uWidth \|\|
2970	pSurface->pMipmapLevels[0].size.height != pThis->svga.uHeight)
2971	{
2972	float xMultiplier = (float)pSurface->pMipmapLevels[0].size.width / (float)pThis->svga.uWidth;
2973	float yMultiplier = (float)pSurface->pMipmapLevels[0].size.height / (float)pThis->svga.uHeight;
2974
2975	LogFlow(("size (%d vs %d) (%d vs %d) multiplier %d\n", pSurface->pMipmapLevels[0].size.width, pThis->svga.uWidth, pSurface->pMipmapLevels[0].size.height, pThis->svga.uHeight, (int)(xMultiplier * 100.0), (int)(yMultiplier * 100.0)));
2976
2977	srcViewPort.x = (uint32_t)((float)pThis->svga.viewport.x * xMultiplier);
2978	srcViewPort.y = (uint32_t)((float)pThis->svga.viewport.y * yMultiplier);
2979	srcViewPort.cx = (uint32_t)((float)pThis->svga.viewport.cx * xMultiplier);
2980	srcViewPort.cy = (uint32_t)((float)pThis->svga.viewport.cy * yMultiplier);
2981	}
2982	else
2983	{
2984	srcViewPort.x = pThis->svga.viewport.x;
2985	srcViewPort.y = pThis->svga.viewport.y;
2986	srcViewPort.cx = pThis->svga.viewport.cx;
2987	srcViewPort.cy = pThis->svga.viewport.cy;
2988	}
2989
2990	#if 1
2991	/* @note this path is slightly faster than the glBlitFrameBuffer path below. */
2992	SVGA3dCopyRect rect;
2993	uint32_t oldVShader, oldPShader;
2994	GLint oldTextureId;
2995
2996	if (cRects == 0)
2997	{
2998	rect.x = rect.y = rect.srcx = rect.srcy = 0;
2999	rect.w = pSurface->pMipmapLevels[0].size.width;
3000	rect.h = pSurface->pMipmapLevels[0].size.height;
3001	pRect = &rect;
3002	cRects = 1;
3003	}
3004
3005	//glPushAttrib(GL_ENABLE_BIT \| GL_DEPTH_BUFFER_BIT \| GL_COLOR_BUFFER_BIT \| GL_VIEWPORT_BIT);
3006
3007	#if 0
3008	glDisable(GL_CULL_FACE);
3009	glDisable(GL_BLEND);
3010	glDisable(GL_ALPHA_TEST);
3011	glDisable(GL_SCISSOR_TEST);
3012	glDisable(GL_STENCIL_TEST);
3013	glEnable(GL_DEPTH_TEST);
3014	glDepthFunc(GL_ALWAYS);
3015	glDepthMask(GL_TRUE);
3016	glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
3017	glViewport(0, 0, pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height);
3018	#endif
3019
3020	glGetIntegerv(GL_TEXTURE_BINDING_2D, &oldTextureId);
3021
3022	oldVShader = pContext->state.shidVertex;
3023	oldPShader = pContext->state.shidPixel;
3024	vmsvga3dShaderSet(pThis, cid, SVGA3D_SHADERTYPE_VS, SVGA_ID_INVALID);
3025	vmsvga3dShaderSet(pThis, cid, SVGA3D_SHADERTYPE_PS, SVGA_ID_INVALID);
3026
3027	/* Flush shader changes. */
3028	if (pContext->pShaderContext)
3029	ShaderUpdateState(pContext->pShaderContext, 0);
3030
3031	/* Activate the read and draw framebuffer objects. */
3032	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
3033	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3034	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */);
3035	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3036
3037	pState->ext.glActiveTexture(GL_TEXTURE0);
3038	glEnable(GL_TEXTURE_2D);
3039	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
3040	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3041
3042	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
3043	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
3044
3045	// glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
3046	// glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
3047
3048	/* Reset the transformation matrices. */
3049	glMatrixMode(GL_MODELVIEW);
3050	glPushMatrix();
3051	glLoadIdentity();
3052	glMatrixMode(GL_PROJECTION);
3053	glPushMatrix();
3054	glLoadIdentity();
3055	glScalef(1.0f, -1.0f, 1.0f);
3056	glOrtho(0, pThis->svga.uWidth, pThis->svga.uHeight, 0, 0.0, -1.0);
3057
3058	for (uint32_t i = 0; i < cRects; i++)
3059	{
3060	float left, right, top, bottom; /* Texture coordinates */
3061	int vertexLeft, vertexRight, vertexTop, vertexBottom;
3062
3063	pRect[i].srcx = RT_MAX(pRect[i].srcx, srcViewPort.x);
3064	pRect[i].srcy = RT_MAX(pRect[i].srcy, srcViewPort.y);
3065	pRect[i].x = RT_MAX(pRect[i].x, pThis->svga.viewport.x) - pThis->svga.viewport.x;
3066	pRect[i].y = RT_MAX(pRect[i].y, pThis->svga.viewport.y) - pThis->svga.viewport.y;
3067	pRect[i].w = pThis->svga.viewport.cx;
3068	pRect[i].h = pThis->svga.viewport.cy;
3069
3070	if ( pRect[i].x + pRect[i].w <= pThis->svga.viewport.x
3071	\|\| pThis->svga.viewport.x + pThis->svga.viewport.cx <= pRect[i].x
3072	\|\| pRect[i].y + pRect[i].h <= pThis->svga.viewport.y
3073	\|\| pThis->svga.viewport.y + pThis->svga.viewport.cy <= pRect[i].y)
3074	{
3075	/* Intersection is empty; skip */
3076	continue;
3077	}
3078
3079	left = pRect[i].srcx;
3080	right = pRect[i].srcx + pRect[i].w;
3081	top = pRect[i].srcy + pRect[i].h;
3082	bottom = pRect[i].srcy;
3083
3084	left /= pSurface->pMipmapLevels[0].size.width;
3085	right /= pSurface->pMipmapLevels[0].size.width;
3086	top /= pSurface->pMipmapLevels[0].size.height;
3087	bottom /= pSurface->pMipmapLevels[0].size.height;
3088
3089	vertexLeft = pRect[i].x;
3090	vertexRight = pRect[i].x + pRect[i].w;
3091	vertexTop = ((uint32_t)pThis->svga.uHeight >= pRect[i].y + pRect[i].h) ? pThis->svga.uHeight - pRect[i].y - pRect[i].h : 0;
3092	vertexBottom = pThis->svga.uHeight - pRect[i].y;
3093
3094	Log(("view port (%d,%d)(%d,%d)\n", srcViewPort.x, srcViewPort.y, srcViewPort.cx, srcViewPort.cy));
3095	Log(("vertex (%d,%d) (%d,%d) (%d,%d) (%d,%d)\n", vertexLeft, vertexBottom, vertexLeft, vertexTop, vertexRight, vertexTop, vertexRight, vertexBottom));
3096	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)));
3097
3098	glBegin(GL_QUADS);
3099	/* bottom left */
3100	glTexCoord2f(left, bottom);
3101	glVertex2i(vertexLeft, vertexBottom);
3102
3103	/* top left */
3104	glTexCoord2f(left, top);
3105	glVertex2i(vertexLeft, vertexTop);
3106
3107	/* top right */
3108	glTexCoord2f(right, top);
3109	glVertex2i(vertexRight, vertexTop);
3110
3111	/* bottom right */
3112	glTexCoord2f(right, bottom);
3113	glVertex2i(vertexRight, vertexBottom);
3114
3115	glEnd();
3116	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3117	}
3118
3119	/* Restore old settings. */
3120	glMatrixMode(GL_PROJECTION);
3121	glPopMatrix();
3122	glMatrixMode(GL_MODELVIEW);
3123	glPopMatrix();
3124
3125	//glPopAttrib();
3126
3127	glBindTexture(GL_TEXTURE_2D, oldTextureId);
3128	vmsvga3dShaderSet(pThis, cid, SVGA3D_SHADERTYPE_VS, oldVShader);
3129	vmsvga3dShaderSet(pThis, cid, SVGA3D_SHADERTYPE_PS, oldPShader);
3130
3131	/* Reset the frame buffer association */
3132	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3133	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3134
3135	#else
3136	/* Activate the read and draw framebuffer objects. */
3137	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
3138	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3139	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */);
3140	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3141
3142	/* Bind the source objects to the right place. */
3143	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurface->oglId.texture, 0 /* level 0 */);
3144	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3145
3146	/* Blit the surface rectangle(s) to the back buffer. */
3147	if (cRects == 0)
3148	{
3149	Log(("view port (%d,%d)(%d,%d)\n", srcViewPort.x, srcViewPort.y, srcViewPort.cx, srcViewPort.cy));
3150	pState->ext.glBlitFramebuffer(srcViewPort.x,
3151	srcViewPort.y,
3152	srcViewPort.x + srcViewPort.cx, /* exclusive. */
3153	srcViewPort.y + srcViewPort.cy, /* exclusive. (reverse to flip the image) */
3154	0,
3155	pThis->svga.viewport.cy, /* exclusive. */
3156	pThis->svga.viewport.cx, /* exclusive. */
3157	0,
3158	GL_COLOR_BUFFER_BIT,
3159	GL_LINEAR);
3160	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3161	}
3162	else
3163	{
3164	for (uint32_t i = 0; i < cRects; i++)
3165	{
3166	if ( pRect[i].x + pRect[i].w <= pThis->svga.viewport.x
3167	\|\| pThis->svga.viewport.x + pThis->svga.viewport.cx <= pRect[i].x
3168	\|\| pRect[i].y + pRect[i].h <= pThis->svga.viewport.y
3169	\|\| pThis->svga.viewport.y + pThis->svga.viewport.cy <= pRect[i].y)
3170	{
3171	/* Intersection is empty; skip */
3172	continue;
3173	}
3174
3175	pState->ext.glBlitFramebuffer(RT_MAX(pRect[i].srcx, srcViewPort.x),
3176	pSurface->pMipmapLevels[0].size.width - RT_MAX(pRect[i].srcy, srcViewPort.y), /* exclusive. (reverse to flip the image) */
3177	RT_MIN(pRect[i].srcx + pRect[i].w, srcViewPort.x + srcViewPort.cx), /* exclusive. */
3178	pSurface->pMipmapLevels[0].size.width - RT_MIN(pRect[i].srcy + pRect[i].h, srcViewPort.y + srcViewPort.cy),
3179	RT_MAX(pRect[i].x, pThis->svga.viewport.x) - pThis->svga.viewport.x,
3180	pThis->svga.uHeight - (RT_MIN(pRect[i].y + pRect[i].h, pThis->svga.viewport.y + pThis->svga.viewport.cy) - pThis->svga.viewport.y), /* exclusive. */
3181	RT_MIN(pRect[i].x + pRect[i].w, pThis->svga.viewport.x + pThis->svga.viewport.cx) - pThis->svga.viewport.x, /* exclusive. */
3182	pThis->svga.uHeight - (RT_MAX(pRect[i].y, pThis->svga.viewport.y) - pThis->svga.viewport.y),
3183	GL_COLOR_BUFFER_BIT,
3184	GL_LINEAR);
3185	}
3186	}
3187	/* Reset the frame buffer association */
3188	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3189	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3190	#endif
3191
3192	/* Flip the front and back buffers. */
3193	#ifdef RT_OS_WINDOWS
3194	BOOL ret = SwapBuffers(pContext->hdc);
3195	AssertMsg(ret, ("SwapBuffers failed with %d\n", GetLastError()));
3196	#elif defined(RT_OS_DARWIN)
3197	vmsvga3dCocoaSwapBuffers(pContext->cocoaView, pContext->cocoaContext);
3198	#else
3199	/* show the window if not already done */
3200	if (!pContext->fMapped)
3201	{
3202	XMapWindow(pState->display, pContext->window);
3203	pContext->fMapped = true;
3204	}
3205	/* now swap the buffers, i.e. display the rendering result */
3206	glXSwapBuffers(pState->display, pContext->window);
3207	#endif
3208	return VINF_SUCCESS;
3209	}
3210
3211	#ifdef RT_OS_LINUX
3212	/**
3213	* X11 event handling thread
3214	* @param ThreadSelf thread handle
3215	* @param pvUser pointer to pState structure
3216	* @returns VBox status code
3217	*/
3218	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD ThreadSelf, void *pvUser)
3219	{
3220	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3221	while (!pState->bTerminate)
3222	{
3223	while (XPending(pState->display) > 0)
3224	{
3225	XEvent event;
3226	XNextEvent(pState->display, &event);
3227
3228	switch (event.type)
3229	{
3230	default:
3231	break;
3232	}
3233	}
3234	/* sleep for 16ms to not burn too many cycles */
3235	RTThreadSleep(16);
3236	}
3237	return VINF_SUCCESS;
3238	}
3239	#endif // RT_OS_LINUX
3240
3241
3242	/**
3243	* Create a new 3d context
3244	*
3245	* @returns VBox status code.
3246	* @param pThis VGA device instance data.
3247	* @param cid Context id
3248	* @param fLegacy Whether to create a legacy context instead of
3249	* whatever is default. Only used at init time.
3250	*/
3251	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid, bool fLegacy)
3252	{
3253	int rc;
3254	PVMSVGA3DCONTEXT pContext;
3255	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
3256
3257	AssertReturn(pState, VERR_NO_MEMORY);
3258	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3259	#if !defined(VBOX_VMSVGA3D_USE_OPENGL_CORE) \|\| !(defined(RT_OS_DARWIN))
3260	AssertReturn(!fLegacy, VERR_INTERNAL_ERROR_3);
3261	#endif
3262
3263	Log(("vmsvga3dContextDefine id %x\n", cid));
3264	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
3265	if (pState->idTestContext == SVGA_ID_INVALID)
3266	{
3267	pState->idTestContext = 207;
3268	rc = vmsvga3dContextDefine(pThis, pState->idTestContext, false /fLegacy/);
3269	AssertRCReturn(rc, rc);
3270	}
3271	#endif
3272
3273	if (cid >= pState->cContexts)
3274	{
3275	pState->paContext = (PVMSVGA3DCONTEXT)RTMemRealloc(pState->paContext, sizeof(VMSVGA3DCONTEXT) * (cid + 1));
3276	AssertReturn(pState->paContext, VERR_NO_MEMORY);
3277	memset(&pState->paContext[pState->cContexts], 0, sizeof(VMSVGA3DCONTEXT) * (cid + 1 - pState->cContexts));
3278	for (uint32_t i = pState->cContexts; i < cid + 1; i++)
3279	pState->paContext[i].id = SVGA3D_INVALID_ID;
3280
3281	pState->cContexts = cid + 1;
3282	}
3283	/* If one already exists with this id, then destroy it now. */
3284	if (pState->paContext[cid].id != SVGA3D_INVALID_ID)
3285	vmsvga3dContextDestroy(pThis, cid);
3286
3287	pContext = &pState->paContext[cid];
3288	memset(pContext, 0, sizeof(*pContext));
3289	pContext->id = cid;
3290	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTexture); i++)
3291	pContext->aSidActiveTexture[i] = SVGA3D_INVALID_ID;
3292
3293	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
3294	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3295	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3296	pContext->idFramebuffer = OPENGL_INVALID_ID;
3297	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3298	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3299
3300	rc = ShaderContextCreate(&pContext->pShaderContext);
3301	AssertRCReturn(rc, rc);
3302
3303	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3304	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3305
3306	AssertReturn(pThis->svga.u64HostWindowId, VERR_INTERNAL_ERROR);
3307
3308	#ifdef RT_OS_WINDOWS
3309	/* Create a context window. */
3310	CREATESTRUCT cs;
3311	cs.lpCreateParams = NULL;
3312	cs.dwExStyle = WS_EX_NOACTIVATE \| WS_EX_NOPARENTNOTIFY \| WS_EX_TRANSPARENT;
3313	# ifdef DEBUG_GFX_WINDOW
3314	cs.lpszName = (char *)RTMemAllocZ(256);
3315	RTStrPrintf((char *)cs.lpszName, 256, "Context %d OpenGL Window", cid);
3316	# else
3317	cs.lpszName = NULL;
3318	# endif
3319	cs.lpszClass = 0;
3320	# ifdef DEBUG_GFX_WINDOW
3321	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_VISIBLE \| WS_CAPTION;
3322	# else
3323	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_DISABLED \| WS_CHILD \| WS_VISIBLE;
3324	# endif
3325	cs.x = 0;
3326	cs.y = 0;
3327	cs.cx = pThis->svga.uWidth;
3328	cs.cy = pThis->svga.uHeight;
3329	cs.hwndParent = (HWND)pThis->svga.u64HostWindowId;
3330	cs.hMenu = NULL;
3331	cs.hInstance = pState->hInstance;
3332
3333	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_CREATEWINDOW, (WPARAM)&pContext->hwnd, (LPARAM)&cs);
3334	AssertRCReturn(rc, rc);
3335
3336	pContext->hdc = GetDC(pContext->hwnd);
3337	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3338
3339	PIXELFORMATDESCRIPTOR pfd = {
3340	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3341	1, /* version number */
3342	PFD_DRAW_TO_WINDOW \| /* support window */
3343	PFD_DOUBLEBUFFER \| /* support double buffering */
3344	PFD_SUPPORT_OPENGL, /* support OpenGL */
3345	PFD_TYPE_RGBA, /* RGBA type */
3346	24, /* 24-bit color depth */
3347	0, 0, 0, 0, 0, 0, /* color bits ignored */
3348	8, /* alpha buffer */
3349	0, /* shift bit ignored */
3350	0, /* no accumulation buffer */
3351	0, 0, 0, 0, /* accum bits ignored */
3352	16, /* set depth buffer */
3353	16, /* set stencil buffer */
3354	0, /* no auxiliary buffer */
3355	PFD_MAIN_PLANE, /* main layer */
3356	0, /* reserved */
3357	0, 0, 0 /* layer masks ignored */
3358	};
3359	int pixelFormat;
3360	BOOL ret;
3361
3362	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3363	/* @todo is this really necessary?? */
3364	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3365	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3366
3367	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3368	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3369
3370	pContext->hglrc = wglCreateContext(pContext->hdc);
3371	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3372
3373	// TODO isn't this default on Linux since OpenGL 1.1?
3374	/* Find the first active context to share the display list with (necessary for sharing e.g. textures between contexts). */
3375	for (uint32_t i = 0; i < pState->cContexts; i++)
3376	{
3377	if ( pState->paContext[i].id != SVGA3D_INVALID_ID
3378	&& i != pContext->id)
3379	{
3380	Log(("Sharing display lists between cid=%d and cid=%d\n", pContext->id, i));
3381	ret = wglShareLists(pState->paContext[i].hglrc, pContext->hglrc);
3382	Assert(ret == TRUE);
3383	break;
3384	}
3385	}
3386
3387	#elif defined(RT_OS_DARWIN)
3388	pContext->fLegacy = fLegacy;
3389
3390	/* Find the first active context to share the display list with (necessary for sharing e.g. textures between contexts). */
3391	NativeNSOpenGLContextRef shareContext = NULL;
3392	for (uint32_t i = 0; i < pState->cContexts; i++)
3393	{
3394	if ( pState->paContext[i].id != SVGA3D_INVALID_ID
3395	&& i != pContext->id
3396	&& pState->paContext[i].fLegacy == fLegacy)
3397	{
3398	Log(("Sharing display lists between cid=%d and cid=%d\n", pContext->id, i));
3399	shareContext = pState->paContext[i].cocoaContext;
3400	break;
3401	}
3402	}
3403	vmsvga3dCocoaCreateContext(&pContext->cocoaContext, shareContext, fLegacy);
3404	NativeNSViewRef pHostView = (NativeNSViewRef)pThis->svga.u64HostWindowId;
3405	vmsvga3dCocoaCreateView(&pContext->cocoaView, pHostView);
3406
3407	#else
3408	Window hostWindow = (Window)pThis->svga.u64HostWindowId;
3409
3410	if (pState->display == NULL)
3411	{
3412	/* get an X display and make sure we have glX 1.3 */
3413	pState->display = XOpenDisplay(0);
3414	Assert(pState->display);
3415	int glxMajor, glxMinor;
3416	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3417	AssertMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3418	/* start our X event handling thread */
3419	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3420	if (RT_FAILURE(rc))
3421	{
3422	AssertMsgFailed(("%s: Async IO Thread creation for 3d window handling failed rc=%d\n", __FUNCTION__, rc));
3423	return rc;
3424	}
3425	}
3426	int attrib[] =
3427	{
3428	GLX_RGBA,
3429	GLX_RED_SIZE, 1,
3430	GLX_GREEN_SIZE, 1,
3431	GLX_BLUE_SIZE, 1,
3432	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3433	GLX_DOUBLEBUFFER,
3434	None
3435	};
3436	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3437	XSetWindowAttributes swa;
3438	swa.colormap = XCreateColormap(pState->display, XDefaultRootWindow(pState->display), vi->visual, AllocNone);
3439	swa.border_pixel = 0;
3440	swa.background_pixel = 0;
3441	swa.event_mask = StructureNotifyMask \| ExposureMask;
3442	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3443	pContext->window = XCreateWindow(pState->display, hostWindow,//XDefaultRootWindow(pState->display),//hostWindow,
3444	0, 0, pThis->svga.uWidth, pThis->svga.uHeight,
3445	0, vi->depth, InputOutput,
3446	vi->visual, flags, &swa);
3447	AssertMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3448	uint32_t cardinal_alpha = (uint32_t) (0.5 * (uint32_t)-1) ;
3449
3450	/* the window is hidden by default and only mapped when CommandPresent is executed on it */
3451
3452	/* Find the first active context to share the display list with (necessary for sharing e.g. textures between contexts). */
3453	GLXContext shareContext = NULL;
3454	for (uint32_t i = 0; i < pState->cContexts; i++)
3455	{
3456	if ( pState->paContext[i].id != SVGA3D_INVALID_ID
3457	&& i != pContext->id)
3458	{
3459	Log(("Sharing display lists between cid=%d and cid=%d\n", pContext->id, i));
3460	shareContext = pState->paContext[i].glxContext;
3461	break;
3462	}
3463	}
3464
3465	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3466	AssertMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3467	#endif
3468
3469	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3470
3471	/* NULL during the first PowerOn call. */
3472	if (pState->ext.glGenFramebuffers)
3473	{
3474	/* Create a framebuffer object for this context. */
3475	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3476	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3477
3478	/* Bind the object to the framebuffer target. */
3479	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3480	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3481
3482	/* Create read and draw framebuffer objects for this context. */
3483	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3484	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3485
3486	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3487	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3488
3489	}
3490	#if 0
3491	/* @todo move to shader lib!!! */
3492	/* Clear the screen */
3493	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3494
3495	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3496	glClearIndex(0);
3497	glClearDepth(1);
3498	glClearStencil(0xffff);
3499	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3500	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3501	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3502	if (pState->ext.glProvokingVertex)
3503	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3504	/* @todo move to shader lib!!! */
3505	#endif
3506	return VINF_SUCCESS;
3507	}
3508
3509	/**
3510	* Destroy an existing 3d context
3511	*
3512	* @returns VBox status code.
3513	* @param pThis VGA device instance data.
3514	* @param cid Context id
3515	*/
3516	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3517	{
3518	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
3519	AssertReturn(pState, VERR_NO_MEMORY);
3520
3521	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3522
3523	if ( cid < pState->cContexts
3524	&& pState->paContext[cid].id == cid)
3525	{
3526	PVMSVGA3DCONTEXT pContext = &pState->paContext[cid];
3527
3528	Log(("vmsvga3dContextDestroy id %x\n", cid));
3529
3530	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3531
3532	/* Destroy all leftover pixel shaders. */
3533	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3534	{
3535	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3536	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3537	}
3538	if (pContext->paPixelShader)
3539	RTMemFree(pContext->paPixelShader);
3540
3541	/* Destroy all leftover vertex shaders. */
3542	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3543	{
3544	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3545	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3546	}
3547	if (pContext->paVertexShader)
3548	RTMemFree(pContext->paVertexShader);
3549
3550	if (pContext->state.paVertexShaderConst)
3551	RTMemFree(pContext->state.paVertexShaderConst);
3552	if (pContext->state.paPixelShaderConst)
3553	RTMemFree(pContext->state.paPixelShaderConst);
3554
3555	if (pContext->pShaderContext)
3556	{
3557	int rc = ShaderContextDestroy(pContext->pShaderContext);
3558	AssertRC(rc);
3559	}
3560
3561	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3562	{
3563	/* Unbind the object from the framebuffer target. */
3564	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3565	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3566	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3567	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3568
3569	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3570	{
3571	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3572	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3573	}
3574	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3575	{
3576	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3577	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3578	}
3579	}
3580	#ifdef RT_OS_WINDOWS
3581	wglMakeCurrent(NULL, NULL);
3582	wglDeleteContext(pContext->hglrc);
3583	ReleaseDC(pContext->hwnd, pContext->hdc);
3584
3585	/* Destroy the window we've created. */
3586	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3587	AssertRC(rc);
3588	#elif defined(RT_OS_DARWIN)
3589	vmsvga3dCocoaDestroyView(pContext->cocoaView);
3590	vmsvga3dCocoaDestroyContext(pContext->cocoaContext);
3591	#elif defined(RT_OS_LINUX)
3592	glXMakeCurrent(pState->display, None, NULL);
3593	glXDestroyContext(pState->display, pContext->glxContext);
3594	XDestroyWindow(pState->display, pContext->window);
3595	#endif
3596
3597	memset(pContext, 0, sizeof(*pContext));
3598	pContext->id = SVGA3D_INVALID_ID;
3599
3600	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3601	}
3602	else
3603	AssertFailed();
3604
3605	return VINF_SUCCESS;
3606	}
3607
3608	/* Handle resize */
3609	int vmsvga3dChangeMode(PVGASTATE pThis)
3610	{
3611	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
3612	AssertReturn(pState, VERR_NO_MEMORY);
3613
3614	/* Resize all active contexts. */
3615	for (uint32_t i = 0; i < pState->cContexts; i++)
3616	{
3617	PVMSVGA3DCONTEXT pContext = &pState->paContext[i];
3618	uint32_t cid = pContext->id;
3619
3620	if (cid != SVGA3D_INVALID_ID)
3621	{
3622	#ifdef RT_OS_WINDOWS
3623	CREATESTRUCT cs;
3624
3625	memset(&cs, 0, sizeof(cs));
3626	cs.cx = pThis->svga.uWidth;
3627	cs.cy = pThis->svga.uHeight;
3628
3629	/* Resize the window. */
3630	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_RESIZEWINDOW, (WPARAM)pContext->hwnd, (LPARAM)&cs);
3631	AssertRC(rc);
3632	#elif defined(RT_OS_DARWIN)
3633	vmsvga3dCocoaViewSetSize(pContext->cocoaView, pThis->svga.uWidth, pThis->svga.uHeight);
3634	#elif defined(RT_OS_LINUX)
3635	XWindowChanges wc;
3636	wc.width = pThis->svga.uWidth;
3637	wc.height = pThis->svga.uHeight;
3638	XConfigureWindow(pState->display, pContext->window, CWWidth \| CWHeight, &wc);
3639	#endif
3640	}
3641	}
3642	return VINF_SUCCESS;
3643	}
3644
3645
3646	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3647	{
3648	PVMSVGA3DCONTEXT pContext;
3649	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
3650	AssertReturn(pState, VERR_NO_MEMORY);
3651	bool fModelViewChanged = false;
3652
3653	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
3654
3655	if ( cid >= pState->cContexts
3656	\|\| pState->paContext[cid].id != cid)
3657	{
3658	Log(("vmsvga3dSetTransform invalid context id!\n"));
3659	return VERR_INVALID_PARAMETER;
3660	}
3661	pContext = &pState->paContext[cid];
3662	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3663
3664	/* Save this matrix for vm state save/restore. */
3665	pContext->state.aTransformState[type].fValid = true;
3666	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3667	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3668
3669	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)));
3670	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)));
3671	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)));
3672	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)));
3673
3674	switch (type)
3675	{
3676	case SVGA3D_TRANSFORM_VIEW:
3677	/* View * World = Model View */
3678	glMatrixMode(GL_MODELVIEW);
3679	glLoadMatrixf(matrix);
3680	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3681	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3682	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3683	fModelViewChanged = true;
3684	break;
3685
3686	case SVGA3D_TRANSFORM_PROJECTION:
3687	{
3688	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix);
3689	AssertRCReturn(rc, rc);
3690	break;
3691	}
3692
3693	case SVGA3D_TRANSFORM_TEXTURE0:
3694	glMatrixMode(GL_TEXTURE);
3695	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3696	glLoadMatrixf(matrix);
3697	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3698	break;
3699
3700	case SVGA3D_TRANSFORM_TEXTURE1:
3701	case SVGA3D_TRANSFORM_TEXTURE2:
3702	case SVGA3D_TRANSFORM_TEXTURE3:
3703	case SVGA3D_TRANSFORM_TEXTURE4:
3704	case SVGA3D_TRANSFORM_TEXTURE5:
3705	case SVGA3D_TRANSFORM_TEXTURE6:
3706	case SVGA3D_TRANSFORM_TEXTURE7:
3707	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3708	return VERR_INVALID_PARAMETER;
3709
3710	case SVGA3D_TRANSFORM_WORLD:
3711	/* View * World = Model View */
3712	glMatrixMode(GL_MODELVIEW);
3713	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3714	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3715	else
3716	glLoadIdentity();
3717	glMultMatrixf(matrix);
3718	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3719	fModelViewChanged = true;
3720	break;
3721
3722	case SVGA3D_TRANSFORM_WORLD1:
3723	case SVGA3D_TRANSFORM_WORLD2:
3724	case SVGA3D_TRANSFORM_WORLD3:
3725	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3726	return VERR_INVALID_PARAMETER;
3727
3728	default:
3729	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3730	return VERR_INVALID_PARAMETER;
3731	}
3732
3733	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3734	if (fModelViewChanged)
3735	{
3736	/* Reprogram the clip planes. */
3737	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3738	{
3739	if (pContext->state.aClipPlane[j].fValid == true)
3740	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3741	}
3742
3743	/* Reprogram the light data. */
3744	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3745	{
3746	if (pContext->state.aLightData[j].fValidData == true)
3747	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3748	}
3749	}
3750
3751	return VINF_SUCCESS;
3752	}
3753
3754	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3755	{
3756	PVMSVGA3DCONTEXT pContext;
3757	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
3758	AssertReturn(pState, VERR_NO_MEMORY);
3759
3760	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3761
3762	if ( cid >= pState->cContexts
3763	\|\| pState->paContext[cid].id != cid)
3764	{
3765	Log(("vmsvga3dSetZRange invalid context id!\n"));
3766	return VERR_INVALID_PARAMETER;
3767	}
3768	pContext = &pState->paContext[cid];
3769	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3770
3771	pContext->state.zRange = zRange;
3772	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3773
3774	if (zRange.min < -1.0)
3775	zRange.min = -1.0;
3776	if (zRange.max > 1.0)
3777	zRange.max = 1.0;
3778
3779	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3780	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3781	return VINF_SUCCESS;
3782	}
3783
3784	/**
3785	* Convert SVGA blend op value to its OpenGL equivalent
3786	*/
3787	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3788	{
3789	switch (blendOp)
3790	{
3791	case SVGA3D_BLENDOP_ZERO:
3792	return GL_ZERO;
3793	case SVGA3D_BLENDOP_ONE:
3794	return GL_ONE;
3795	case SVGA3D_BLENDOP_SRCCOLOR:
3796	return GL_SRC_COLOR;
3797	case SVGA3D_BLENDOP_INVSRCCOLOR:
3798	return GL_ONE_MINUS_SRC_COLOR;
3799	case SVGA3D_BLENDOP_SRCALPHA:
3800	return GL_SRC_ALPHA;
3801	case SVGA3D_BLENDOP_INVSRCALPHA:
3802	return GL_ONE_MINUS_SRC_ALPHA;
3803	case SVGA3D_BLENDOP_DESTALPHA:
3804	return GL_DST_ALPHA;
3805	case SVGA3D_BLENDOP_INVDESTALPHA:
3806	return GL_ONE_MINUS_DST_ALPHA;
3807	case SVGA3D_BLENDOP_DESTCOLOR:
3808	return GL_DST_COLOR;
3809	case SVGA3D_BLENDOP_INVDESTCOLOR:
3810	return GL_ONE_MINUS_DST_COLOR;
3811	case SVGA3D_BLENDOP_SRCALPHASAT:
3812	return GL_SRC_ALPHA_SATURATE;
3813	case SVGA3D_BLENDOP_BLENDFACTOR:
3814	return GL_CONSTANT_ALPHA; /* @todo correct?? */
3815	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3816	return GL_ONE_MINUS_CONSTANT_ALPHA; /* @todo correct?? */
3817	default:
3818	AssertFailed();
3819	return GL_ONE;
3820	}
3821	}
3822
3823	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3824	{
3825	switch (blendEq)
3826	{
3827	case SVGA3D_BLENDEQ_ADD:
3828	return GL_FUNC_ADD;
3829	case SVGA3D_BLENDEQ_SUBTRACT:
3830	return GL_FUNC_SUBTRACT;
3831	case SVGA3D_BLENDEQ_REVSUBTRACT:
3832	return GL_FUNC_REVERSE_SUBTRACT;
3833	case SVGA3D_BLENDEQ_MINIMUM:
3834	return GL_MIN;
3835	case SVGA3D_BLENDEQ_MAXIMUM:
3836	return GL_MAX;
3837	default:
3838	AssertFailed();
3839	return GL_FUNC_ADD;
3840	}
3841	}
3842
3843	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3844	{
3845	switch (cmpFunc)
3846	{
3847	case SVGA3D_CMP_NEVER:
3848	return GL_NEVER;
3849	case SVGA3D_CMP_LESS:
3850	return GL_LESS;
3851	case SVGA3D_CMP_EQUAL:
3852	return GL_EQUAL;
3853	case SVGA3D_CMP_LESSEQUAL:
3854	return GL_LEQUAL;
3855	case SVGA3D_CMP_GREATER:
3856	return GL_GREATER;
3857	case SVGA3D_CMP_NOTEQUAL:
3858	return GL_NOTEQUAL;
3859	case SVGA3D_CMP_GREATEREQUAL:
3860	return GL_GEQUAL;
3861	case SVGA3D_CMP_ALWAYS:
3862	return GL_ALWAYS;
3863	default:
3864	AssertFailed();
3865	return GL_LESS;
3866	}
3867	}
3868
3869	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3870	{
3871	switch (stencilOp)
3872	{
3873	case SVGA3D_STENCILOP_KEEP:
3874	return GL_KEEP;
3875	case SVGA3D_STENCILOP_ZERO:
3876	return GL_ZERO;
3877	case SVGA3D_STENCILOP_REPLACE:
3878	return GL_REPLACE;
3879	case SVGA3D_STENCILOP_INCRSAT:
3880	return GL_INCR_WRAP;
3881	case SVGA3D_STENCILOP_DECRSAT:
3882	return GL_DECR_WRAP;
3883	case SVGA3D_STENCILOP_INVERT:
3884	return GL_INVERT;
3885	case SVGA3D_STENCILOP_INCR:
3886	return GL_INCR;
3887	case SVGA3D_STENCILOP_DECR:
3888	return GL_DECR;
3889	default:
3890	AssertFailed();
3891	return GL_KEEP;
3892	}
3893	}
3894
3895	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3896	{
3897	uint32_t val;
3898	PVMSVGA3DCONTEXT pContext;
3899	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
3900	AssertReturn(pState, VERR_NO_MEMORY);
3901
3902	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
3903
3904	if ( cid >= pState->cContexts
3905	\|\| pState->paContext[cid].id != cid)
3906	{
3907	Log(("vmsvga3dSetRenderState invalid context id!\n"));
3908	return VERR_INVALID_PARAMETER;
3909	}
3910	pContext = &pState->paContext[cid];
3911	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3912
3913	for (unsigned i = 0; i < cRenderStates; i++)
3914	{
3915	GLenum enableCap = ~0U;
3916	Log(("vmsvga3dSetRenderState: cid=%d state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3917	/* Save the render state for vm state saving. */
3918	if (pRenderState[i].state < SVGA3D_RS_MAX)
3919	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3920
3921	switch (pRenderState[i].state)
3922	{
3923	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3924	enableCap = GL_DEPTH_TEST;
3925	val = pRenderState[i].uintValue;
3926	break;
3927
3928	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3929	glDepthMask(!!pRenderState[i].uintValue);
3930	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3931	break;
3932
3933	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3934	enableCap = GL_ALPHA_TEST;
3935	val = pRenderState[i].uintValue;
3936	break;
3937
3938	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3939	enableCap = GL_DITHER;
3940	val = pRenderState[i].uintValue;
3941	break;
3942
3943	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3944	enableCap = GL_FOG;
3945	val = pRenderState[i].uintValue;
3946	break;
3947
3948	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3949	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3950	break;
3951
3952	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3953	enableCap = GL_LIGHTING;
3954	val = pRenderState[i].uintValue;
3955	break;
3956
3957	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3958	/* not applicable */
3959	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3960	break;
3961
3962	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3963	enableCap = GL_POINT_SPRITE_ARB;
3964	val = pRenderState[i].uintValue;
3965	break;
3966
3967	case SVGA3D_RS_POINTSIZE: /* float */
3968	/* @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
3969	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
3970	pRenderState[i].floatValue = pState->caps.flPointSize[0];
3971	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
3972	pRenderState[i].floatValue = pState->caps.flPointSize[1];
3973
3974	glPointSize(pRenderState[i].floatValue);
3975	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3976	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3977	break;
3978
3979	case SVGA3D_RS_POINTSIZEMIN: /* float */
3980	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
3981	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3982	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3983	break;
3984
3985	case SVGA3D_RS_POINTSIZEMAX: /* float */
3986	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
3987	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3988	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3989	break;
3990
3991	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
3992	case SVGA3D_RS_POINTSCALE_A: /* float */
3993	case SVGA3D_RS_POINTSCALE_B: /* float */
3994	case SVGA3D_RS_POINTSCALE_C: /* float */
3995	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3996	break;
3997
3998	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
3999	{
4000	GLfloat color[4]; /* red, green, blue, alpha */
4001
4002	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4003
4004	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
4005	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4006	break;
4007	}
4008
4009	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
4010	{
4011	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
4012	for (uint32_t j = 0; j <= 5; j++)
4013	{
4014	if (pRenderState[i].uintValue & RT_BIT(j))
4015	glEnable(GL_CLIP_PLANE0 + j);
4016	else
4017	glDisable(GL_CLIP_PLANE0 + j);
4018	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4019	}
4020	break;
4021	}
4022
4023	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
4024	{
4025	GLfloat color[4]; /* red, green, blue, alpha */
4026
4027	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4028
4029	glFogfv(GL_FOG_COLOR, color);
4030	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4031	break;
4032	}
4033
4034	case SVGA3D_RS_FOGSTART: /* float */
4035	glFogf(GL_FOG_START, pRenderState[i].floatValue);
4036	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4037	break;
4038
4039	case SVGA3D_RS_FOGEND: /* float */
4040	glFogf(GL_FOG_END, pRenderState[i].floatValue);
4041	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4042	break;
4043
4044	case SVGA3D_RS_FOGDENSITY: /* float */
4045	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
4046	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4047	break;
4048
4049	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
4050	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
4051	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4052	break;
4053
4054	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
4055	{
4056	SVGA3dFogMode mode;
4057	mode.uintValue = pRenderState[i].uintValue;
4058
4059	enableCap = GL_FOG_MODE;
4060	switch (mode.s.function)
4061	{
4062	case SVGA3D_FOGFUNC_EXP:
4063	val = GL_EXP;
4064	break;
4065	case SVGA3D_FOGFUNC_EXP2:
4066	val = GL_EXP2;
4067	break;
4068	case SVGA3D_FOGFUNC_LINEAR:
4069	val = GL_LINEAR;
4070	break;
4071	default:
4072	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
4073	break;
4074	}
4075
4076	/* @todo how to switch between vertex and pixel fog modes??? */
4077	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
4078	#if 0
4079	/* The fog type determines the render state. */
4080	switch (mode.s.type)
4081	{
4082	case SVGA3D_FOGTYPE_VERTEX:
4083	renderState = D3DRS_FOGVERTEXMODE;
4084	break;
4085	case SVGA3D_FOGTYPE_PIXEL:
4086	renderState = D3DRS_FOGTABLEMODE;
4087	break;
4088	default:
4089	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
4090	break;
4091	}
4092	#endif
4093
4094	/* Set the fog base to depth or range. */
4095	switch (mode.s.base)
4096	{
4097	case SVGA3D_FOGBASE_DEPTHBASED:
4098	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
4099	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4100	break;
4101	case SVGA3D_FOGBASE_RANGEBASED:
4102	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
4103	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4104	break;
4105	default:
4106	/* ignore */
4107	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
4108	break;
4109	}
4110	break;
4111	}
4112
4113	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
4114	{
4115	SVGA3dFillMode mode;
4116
4117	mode.uintValue = pRenderState[i].uintValue;
4118
4119	switch (mode.s.mode)
4120	{
4121	case SVGA3D_FILLMODE_POINT:
4122	val = GL_POINT;
4123	break;
4124	case SVGA3D_FILLMODE_LINE:
4125	val = GL_LINE;
4126	break;
4127	case SVGA3D_FILLMODE_FILL:
4128	val = GL_FILL;
4129	break;
4130	default:
4131	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
4132	break;
4133	}
4134	/* @note only front and back faces */
4135	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
4136	glPolygonMode(GL_FRONT_AND_BACK, val);
4137	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4138	break;
4139	}
4140
4141	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
4142	switch (pRenderState[i].uintValue)
4143	{
4144	case SVGA3D_SHADEMODE_FLAT:
4145	val = GL_FLAT;
4146	break;
4147
4148	case SVGA3D_SHADEMODE_SMOOTH:
4149	val = GL_SMOOTH;
4150	break;
4151
4152	default:
4153	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4154	break;
4155	}
4156
4157	glShadeModel(val);
4158	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4159	break;
4160
4161	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
4162	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
4163	/* @todo */
4164	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
4165	/*
4166	renderState = D3DRS_LINEPATTERN;
4167	val = pRenderState[i].uintValue;
4168	*/
4169	break;
4170
4171	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
4172	enableCap = GL_LINE_SMOOTH;
4173	val = pRenderState[i].uintValue;
4174	break;
4175
4176	case SVGA3D_RS_LINEWIDTH: /* float */
4177	glLineWidth(pRenderState[i].floatValue);
4178	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4179	break;
4180
4181	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4182	{
4183	/* Refresh the blending state based on the new enable setting. */
4184	SVGA3dRenderState renderstate[2];
4185
4186	renderstate[0].state = SVGA3D_RS_SRCBLEND;
4187	renderstate[0].uintValue = pContext->state.aRenderState[SVGA3D_RS_SRCBLEND].uintValue;
4188	renderstate[1].state = SVGA3D_RS_BLENDEQUATION;
4189	renderstate[1].uintValue = pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue;
4190
4191	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
4192	AssertRCReturn(rc, rc);
4193
4194	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
4195	continue; /* ignore if blend is already enabled */
4196	/* no break */
4197	}
4198
4199	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
4200	enableCap = GL_BLEND;
4201	val = pRenderState[i].uintValue;
4202	break;
4203
4204	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4205	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4206	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4207	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4208	{
4209	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4210	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4211
4212	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4213	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4214	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4215	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4216	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4217	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4218	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4219	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4220
4221	switch (pRenderState[i].state)
4222	{
4223	case SVGA3D_RS_SRCBLEND:
4224	srcRGB = blendop;
4225	break;
4226	case SVGA3D_RS_DSTBLEND:
4227	dstRGB = blendop;
4228	break;
4229	case SVGA3D_RS_SRCBLENDALPHA:
4230	srcAlpha = blendop;
4231	break;
4232	case SVGA3D_RS_DSTBLENDALPHA:
4233	dstAlpha = blendop;
4234	break;
4235	default:
4236	/* not possible; shut up gcc */
4237	AssertFailed();
4238	break;
4239	}
4240
4241	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4242	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4243	else
4244	glBlendFunc(srcRGB, dstRGB);
4245	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4246	break;
4247	}
4248
4249	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4250	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4251	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4252	pState->ext.glBlendEquationSeparate(vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue),
4253	vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue));
4254	else
4255	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4256	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4257	break;
4258
4259	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4260	{
4261	GLfloat red, green, blue, alpha;
4262
4263	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4264
4265	pState->ext.glBlendColor(red, green, blue, alpha);
4266	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4267	break;
4268	}
4269
4270	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4271	{
4272	GLenum mode = GL_BACK; /* default for OpenGL */
4273
4274	switch (pRenderState[i].uintValue)
4275	{
4276	case SVGA3D_FACE_NONE:
4277	break;
4278	case SVGA3D_FACE_FRONT:
4279	mode = GL_FRONT;
4280	break;
4281	case SVGA3D_FACE_BACK:
4282	mode = GL_BACK;
4283	break;
4284	case SVGA3D_FACE_FRONT_BACK:
4285	mode = GL_FRONT_AND_BACK;
4286	break;
4287	default:
4288	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4289	break;
4290	}
4291	enableCap = GL_CULL_FACE;
4292	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4293	{
4294	glCullFace(mode);
4295	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4296	val = 1;
4297	}
4298	else
4299	val = 0;
4300	break;
4301	}
4302
4303	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4304	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4305	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4306	break;
4307
4308	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4309	{
4310	GLclampf ref;
4311
4312	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4313	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4314	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4315	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4316	break;
4317	}
4318
4319	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4320	{
4321	GLint func;
4322
4323	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4324	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4325	glAlphaFunc(func, pRenderState[i].floatValue);
4326	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4327	break;
4328	}
4329
4330	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4331	enableCap = GL_STENCIL_TEST;
4332	val = pRenderState[i].uintValue;
4333	break;
4334
4335	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4336	case SVGA3D_RS_STENCILREF: /* uint32_t */
4337	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4338	{
4339	GLint func, ref;
4340	GLuint mask;
4341
4342	glGetIntegerv(GL_STENCIL_FUNC, &func);
4343	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4344	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4345	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4346	glGetIntegerv(GL_STENCIL_REF, &ref);
4347	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4348
4349	switch (pRenderState[i].state)
4350	{
4351	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4352	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4353	break;
4354
4355	case SVGA3D_RS_STENCILREF: /* uint32_t */
4356	ref = pRenderState[i].uintValue;
4357	break;
4358
4359	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4360	mask = pRenderState[i].uintValue;
4361	break;
4362
4363	default:
4364	/* not possible; shut up gcc */
4365	AssertFailed();
4366	break;
4367	}
4368
4369	glStencilFunc(func, ref, mask);
4370	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4371	break;
4372	}
4373
4374	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4375	glStencilMask(pRenderState[i].uintValue);
4376	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4377	break;
4378
4379	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4380	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4381	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4382	{
4383	GLint sfail, dpfail, dppass;
4384	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4385
4386	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4387	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4388	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4389	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4390	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4391	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4392
4393	switch (pRenderState[i].state)
4394	{
4395	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4396	sfail = stencilop;
4397	break;
4398	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4399	dpfail = stencilop;
4400	break;
4401	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4402	dppass = stencilop;
4403	break;
4404	default:
4405	/* not possible; shut up gcc */
4406	AssertFailed();
4407	break;
4408	}
4409	glStencilOp(sfail, dpfail, dppass);
4410	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4411	break;
4412	}
4413
4414	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4415	/* @note GL_EXT_stencil_two_side required! */
4416	if (pState->ext.fEXT_stencil_two_side)
4417	{
4418	enableCap = GL_STENCIL_TEST_TWO_SIDE_EXT;
4419	val = pRenderState[i].uintValue;
4420	}
4421	else
4422	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_STENCILENABLE2SIDED\n"));
4423	break;
4424
4425	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4426	{
4427	/* @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4428	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4429	*/
4430	GLint ref;
4431	GLuint mask;
4432
4433	glGetIntegerv(GL_STENCIL_BACK_VALUE_MASK, (GLint *)&mask);
4434	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4435	glGetIntegerv(GL_STENCIL_BACK_REF, &ref);
4436	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4437
4438	pState->ext.glStencilFuncSeparate(GL_BACK, vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref, mask);
4439	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4440	break;
4441	}
4442
4443	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4444	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4445	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4446	{
4447	/* @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4448	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4449	*/
4450	GLint sfail, dpfail, dppass;
4451	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4452
4453	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4454	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4455	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4456	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4457	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4458	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4459
4460	switch (pRenderState[i].state)
4461	{
4462	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4463	sfail = stencilop;
4464	break;
4465	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4466	dpfail = stencilop;
4467	break;
4468	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4469	dppass = stencilop;
4470	break;
4471	default:
4472	/* not possible; shut up gcc */
4473	AssertFailed();
4474	break;
4475	}
4476	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4477	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4478	break;
4479	}
4480
4481	case SVGA3D_RS_ZBIAS: /* float */
4482	/* @todo unknown meaning; depth bias is not identical
4483	renderState = D3DRS_DEPTHBIAS;
4484	val = pRenderState[i].uintValue;
4485	*/
4486	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4487	break;
4488
4489	case SVGA3D_RS_DEPTHBIAS: /* float */
4490	{
4491	GLfloat factor;
4492
4493	/* @todo not sure if the d3d & ogl definitions are identical. */
4494
4495	/* Do not change the factor part. */
4496	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4497	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4498
4499	glPolygonOffset(factor, pRenderState[i].floatValue);
4500	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4501	break;
4502	}
4503
4504	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4505	{
4506	GLfloat units;
4507
4508	/* @todo not sure if the d3d & ogl definitions are identical. */
4509
4510	/* Do not change the factor part. */
4511	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4512	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4513
4514	glPolygonOffset(pRenderState[i].floatValue, units);
4515	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4516	break;
4517	}
4518
4519	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4520	{
4521	GLboolean red, green, blue, alpha;
4522	SVGA3dColorMask mask;
4523
4524	mask.uintValue = pRenderState[i].uintValue;
4525
4526	red = mask.s.red;
4527	green = mask.s.green;
4528	blue = mask.s.blue;
4529	alpha = mask.s.alpha;
4530
4531	glColorMask(red, green, blue, alpha);
4532	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4533	break;
4534	}
4535
4536	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4537	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4538	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4539	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4540	break;
4541
4542	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4543	enableCap = GL_SCISSOR_TEST;
4544	val = pRenderState[i].uintValue;
4545	break;
4546
4547	#if 0
4548	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4549	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4550	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4551	val = pRenderState[i].uintValue;
4552	break;
4553
4554	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4555	renderState = D3DRS_SPECULARMATERIALSOURCE;
4556	val = pRenderState[i].uintValue;
4557	break;
4558
4559	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4560	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4561	val = pRenderState[i].uintValue;
4562	break;
4563
4564	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4565	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4566	val = pRenderState[i].uintValue;
4567	break;
4568	#endif
4569
4570	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4571	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4572	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4573	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4574	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4575	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4576	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4577	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4578	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4579	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4580	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4581	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4582	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4583	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4584	break;
4585
4586	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4587	case SVGA3D_RS_TWEENFACTOR: /* float */
4588	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4589	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4590	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4591	break;
4592
4593	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4594	enableCap = GL_MULTISAMPLE;
4595	val = pRenderState[i].uintValue;
4596	break;
4597
4598	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4599	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4600	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4601	break;
4602
4603	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4604	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4605	/* @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4606	/*
4607	renderState = D3DRS_COORDINATETYPE;
4608	val = pRenderState[i].uintValue;
4609	*/
4610	break;
4611
4612	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4613	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4614	/* Invert the selected mode because of y-inversion (?) */
4615	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4616	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4617	break;
4618
4619	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4620	//AssertFailed();
4621	/*
4622	D3DRS_SRGBWRITEENABLE ??
4623	renderState = D3DRS_OUTPUTGAMMA;
4624	val = pRenderState[i].uintValue;
4625	*/
4626	break;
4627
4628	#if 0
4629
4630	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4631	//AssertFailed();
4632	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4633	val = pRenderState[i].uintValue;
4634	break;
4635
4636	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4637	renderState = D3DRS_TEXTUREFACTOR;
4638	val = pRenderState[i].uintValue;
4639	break;
4640
4641	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4642	renderState = D3DRS_LOCALVIEWER;
4643	val = pRenderState[i].uintValue;
4644	break;
4645
4646	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4647	AssertFailed();
4648	/*
4649	renderState = D3DRS_ZVISIBLE;
4650	val = pRenderState[i].uintValue;
4651	*/
4652	break;
4653
4654	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4655	renderState = D3DRS_CLIPPING;
4656	val = pRenderState[i].uintValue;
4657	break;
4658
4659	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4660	glTexParameter GL_TEXTURE_WRAP_S
4661	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4662	renderState = D3DRS_WRAP0;
4663	val = pRenderState[i].uintValue;
4664	break;
4665
4666	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4667	glTexParameter GL_TEXTURE_WRAP_T
4668	renderState = D3DRS_WRAP1;
4669	val = pRenderState[i].uintValue;
4670	break;
4671
4672	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4673	glTexParameter GL_TEXTURE_WRAP_R
4674	renderState = D3DRS_WRAP2;
4675	val = pRenderState[i].uintValue;
4676	break;
4677
4678
4679	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4680	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4681	val = pRenderState[i].uintValue;
4682	break;
4683
4684
4685	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4686	renderState = D3DRS_BLENDOPALPHA;
4687	val = pRenderState[i].uintValue;
4688	break;
4689
4690	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4691	AssertFailed();
4692	/*
4693	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4694	val = pRenderState[i].uintValue;
4695	*/
4696	break;
4697
4698	#endif
4699	default:
4700	AssertFailed();
4701	break;
4702	}
4703
4704	if (enableCap != ~0U)
4705	{
4706	if (val)
4707	glEnable(enableCap);
4708	else
4709	glDisable(enableCap);
4710	}
4711	}
4712
4713	return VINF_SUCCESS;
4714	}
4715
4716	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4717	{
4718	PVMSVGA3DCONTEXT pContext;
4719	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
4720	PVMSVGA3DSURFACE pRenderTarget;
4721
4722	AssertReturn(pState, VERR_NO_MEMORY);
4723	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4724	AssertReturn(target.face == 0, VERR_INVALID_PARAMETER);
4725	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4726
4727	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
4728
4729	if ( cid >= pState->cContexts
4730	\|\| pState->paContext[cid].id != cid)
4731	{
4732	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
4733	return VERR_INVALID_PARAMETER;
4734	}
4735	pContext = &pState->paContext[cid];
4736	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4737
4738	/* Save for vm state save/restore. */
4739	pContext->state.aRenderTargets[type] = target.sid;
4740
4741	if (target.sid == SVGA3D_INVALID_ID)
4742	{
4743	/* Disable render target. */
4744	switch (type)
4745	{
4746	case SVGA3D_RT_DEPTH:
4747	case SVGA3D_RT_STENCIL:
4748	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4749	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4750	break;
4751
4752	case SVGA3D_RT_COLOR0:
4753	case SVGA3D_RT_COLOR1:
4754	case SVGA3D_RT_COLOR2:
4755	case SVGA3D_RT_COLOR3:
4756	case SVGA3D_RT_COLOR4:
4757	case SVGA3D_RT_COLOR5:
4758	case SVGA3D_RT_COLOR6:
4759	case SVGA3D_RT_COLOR7:
4760	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
4761	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4762	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4763	break;
4764
4765	default:
4766	AssertFailedReturn(VERR_INVALID_PARAMETER);
4767	}
4768	return VINF_SUCCESS;
4769	}
4770
4771	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
4772	AssertReturn(target.sid < pState->cSurfaces && pState->paSurface[target.sid].id == target.sid, VERR_INVALID_PARAMETER);
4773	pRenderTarget = &pState->paSurface[target.sid];
4774
4775	switch (type)
4776	{
4777	case SVGA3D_RT_DEPTH:
4778	case SVGA3D_RT_STENCIL:
4779	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4780	{
4781	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->flags, pRenderTarget->internalFormatGL));
4782	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4783	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4784
4785	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4786	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4787
4788	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4789	pRenderTarget->internalFormatGL,
4790	pRenderTarget->pMipmapLevels[0].size.width,
4791	pRenderTarget->pMipmapLevels[0].size.height);
4792	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4793
4794	pRenderTarget->idAssociatedContext = cid;
4795	}
4796	else
4797	{
4798	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4799	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4800	}
4801	Assert(pRenderTarget->idAssociatedContext == cid);
4802	Assert(!pRenderTarget->fDirty);
4803	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4804
4805	pRenderTarget->flags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4806
4807	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4808	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4809	break;
4810
4811	case SVGA3D_RT_COLOR0:
4812	case SVGA3D_RT_COLOR1:
4813	case SVGA3D_RT_COLOR2:
4814	case SVGA3D_RT_COLOR3:
4815	case SVGA3D_RT_COLOR4:
4816	case SVGA3D_RT_COLOR5:
4817	case SVGA3D_RT_COLOR6:
4818	case SVGA3D_RT_COLOR7:
4819	{
4820	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4821	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4822	{
4823	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));
4824	int rc = vmsvga3dCreateTexture(pState, pContext, cid, pRenderTarget);
4825	AssertRCReturn(rc, rc);
4826	}
4827
4828	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4829	Assert(!pRenderTarget->fDirty);
4830
4831	pRenderTarget->flags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4832
4833	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
4834	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4835
4836	pContext->sidRenderTarget = target.sid;
4837
4838	#ifdef DEBUG
4839	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4840	if (status != GL_FRAMEBUFFER_COMPLETE)
4841	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4842	#endif
4843	/* @todo use glDrawBuffers too? */
4844	break;
4845	}
4846
4847	default:
4848	AssertFailedReturn(VERR_INVALID_PARAMETER);
4849	}
4850
4851	return VINF_SUCCESS;
4852	}
4853
4854	#if 0
4855	/**
4856	* Convert SVGA texture combiner value to its D3D equivalent
4857	*/
4858	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4859	{
4860	switch (value)
4861	{
4862	case SVGA3D_TC_DISABLE:
4863	return D3DTOP_DISABLE;
4864	case SVGA3D_TC_SELECTARG1:
4865	return D3DTOP_SELECTARG1;
4866	case SVGA3D_TC_SELECTARG2:
4867	return D3DTOP_SELECTARG2;
4868	case SVGA3D_TC_MODULATE:
4869	return D3DTOP_MODULATE;
4870	case SVGA3D_TC_ADD:
4871	return D3DTOP_ADD;
4872	case SVGA3D_TC_ADDSIGNED:
4873	return D3DTOP_ADDSIGNED;
4874	case SVGA3D_TC_SUBTRACT:
4875	return D3DTOP_SUBTRACT;
4876	case SVGA3D_TC_BLENDTEXTUREALPHA:
4877	return D3DTOP_BLENDTEXTUREALPHA;
4878	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4879	return D3DTOP_BLENDDIFFUSEALPHA;
4880	case SVGA3D_TC_BLENDCURRENTALPHA:
4881	return D3DTOP_BLENDCURRENTALPHA;
4882	case SVGA3D_TC_BLENDFACTORALPHA:
4883	return D3DTOP_BLENDFACTORALPHA;
4884	case SVGA3D_TC_MODULATE2X:
4885	return D3DTOP_MODULATE2X;
4886	case SVGA3D_TC_MODULATE4X:
4887	return D3DTOP_MODULATE4X;
4888	case SVGA3D_TC_DSDT:
4889	AssertFailed(); /* @todo ??? */
4890	return D3DTOP_DISABLE;
4891	case SVGA3D_TC_DOTPRODUCT3:
4892	return D3DTOP_DOTPRODUCT3;
4893	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4894	return D3DTOP_BLENDTEXTUREALPHAPM;
4895	case SVGA3D_TC_ADDSIGNED2X:
4896	return D3DTOP_ADDSIGNED2X;
4897	case SVGA3D_TC_ADDSMOOTH:
4898	return D3DTOP_ADDSMOOTH;
4899	case SVGA3D_TC_PREMODULATE:
4900	return D3DTOP_PREMODULATE;
4901	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4902	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4903	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4904	return D3DTOP_MODULATECOLOR_ADDALPHA;
4905	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4906	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4907	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4908	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4909	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4910	return D3DTOP_BUMPENVMAPLUMINANCE;
4911	case SVGA3D_TC_MULTIPLYADD:
4912	return D3DTOP_MULTIPLYADD;
4913	case SVGA3D_TC_LERP:
4914	return D3DTOP_LERP;
4915	default:
4916	AssertFailed();
4917	return D3DTOP_DISABLE;
4918	}
4919	}
4920
4921	/**
4922	* Convert SVGA texture arg data value to its D3D equivalent
4923	*/
4924	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4925	{
4926	switch (value)
4927	{
4928	case SVGA3D_TA_CONSTANT:
4929	return D3DTA_CONSTANT;
4930	case SVGA3D_TA_PREVIOUS:
4931	return D3DTA_CURRENT; /* current = previous */
4932	case SVGA3D_TA_DIFFUSE:
4933	return D3DTA_DIFFUSE;
4934	case SVGA3D_TA_TEXTURE:
4935	return D3DTA_TEXTURE;
4936	case SVGA3D_TA_SPECULAR:
4937	return D3DTA_SPECULAR;
4938	default:
4939	AssertFailed();
4940	return 0;
4941	}
4942	}
4943
4944	/**
4945	* Convert SVGA texture transform flag value to its D3D equivalent
4946	*/
4947	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
4948	{
4949	switch (value)
4950	{
4951	case SVGA3D_TEX_TRANSFORM_OFF:
4952	return D3DTTFF_DISABLE;
4953	case SVGA3D_TEX_TRANSFORM_S:
4954	return D3DTTFF_COUNT1; /* @todo correct? */
4955	case SVGA3D_TEX_TRANSFORM_T:
4956	return D3DTTFF_COUNT2; /* @todo correct? */
4957	case SVGA3D_TEX_TRANSFORM_R:
4958	return D3DTTFF_COUNT3; /* @todo correct? */
4959	case SVGA3D_TEX_TRANSFORM_Q:
4960	return D3DTTFF_COUNT4; /* @todo correct? */
4961	case SVGA3D_TEX_PROJECTED:
4962	return D3DTTFF_PROJECTED;
4963	default:
4964	AssertFailed();
4965	return 0;
4966	}
4967	}
4968	#endif
4969
4970	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
4971	{
4972	switch (value)
4973	{
4974	case SVGA3D_TEX_ADDRESS_WRAP:
4975	return GL_REPEAT;
4976	case SVGA3D_TEX_ADDRESS_MIRROR:
4977	return GL_MIRRORED_REPEAT;
4978	case SVGA3D_TEX_ADDRESS_CLAMP:
4979	return GL_CLAMP_TO_EDGE;
4980	case SVGA3D_TEX_ADDRESS_BORDER:
4981	return GL_CLAMP_TO_BORDER;
4982	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
4983	AssertFailed();
4984	return GL_CLAMP_TO_EDGE_SGIS; /* @todo correct? */
4985
4986	case SVGA3D_TEX_ADDRESS_EDGE:
4987	case SVGA3D_TEX_ADDRESS_INVALID:
4988	default:
4989	AssertFailed();
4990	return GL_REPEAT; /* default */
4991	}
4992	}
4993
4994	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
4995	{
4996	switch (value)
4997	{
4998	case SVGA3D_TEX_FILTER_NONE:
4999	case SVGA3D_TEX_FILTER_LINEAR:
5000	return GL_LINEAR;
5001	case SVGA3D_TEX_FILTER_NEAREST:
5002	return GL_NEAREST;
5003	case SVGA3D_TEX_FILTER_ANISOTROPIC:
5004	/* @todo */
5005	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
5006	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
5007	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
5008	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
5009	default:
5010	AssertFailed();
5011	return GL_LINEAR; /* default */
5012	}
5013	}
5014
5015	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
5016	{
5017	/* flip the red and blue bytes */
5018	uint8_t blue = value & 0xff;
5019	uint8_t red = (value >> 16) & 0xff;
5020	return (value & 0xff00ff00) \| red \| (blue << 16);
5021	}
5022
5023	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
5024	{
5025	GLenum val;
5026	GLenum currentStage = ~0L;
5027	PVMSVGA3DCONTEXT pContext;
5028	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5029	AssertReturn(pState, VERR_NO_MEMORY);
5030
5031	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
5032
5033	if ( cid >= pState->cContexts
5034	\|\| pState->paContext[cid].id != cid)
5035	{
5036	Log(("vmsvga3dSetTextureState invalid context id!\n"));
5037	return VERR_INVALID_PARAMETER;
5038	}
5039	pContext = &pState->paContext[cid];
5040	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5041
5042	for (unsigned i = 0; i < cTextureStates; i++)
5043	{
5044	GLenum textureType = ~0U;
5045	GLenum samplerType = ~0U;
5046
5047	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));
5048	/* Record the texture state for vm state saving. */
5049	if ( pTextureState[i].stage < SVGA3D_MAX_TEXTURE_STAGE
5050	&& pTextureState[i].name < SVGA3D_TS_MAX)
5051	{
5052	pContext->state.aTextureState[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
5053	}
5054
5055	/* Active the right texture unit for subsequent texture state changes. */
5056	if (pTextureState[i].stage != currentStage)
5057	{
5058	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
5059	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5060	currentStage = pTextureState[i].stage;
5061	}
5062
5063	switch (pTextureState[i].name)
5064	{
5065	case SVGA3D_TS_BUMPENVMAT00: /* float */
5066	case SVGA3D_TS_BUMPENVMAT01: /* float */
5067	case SVGA3D_TS_BUMPENVMAT10: /* float */
5068	case SVGA3D_TS_BUMPENVMAT11: /* float */
5069	case SVGA3D_TS_BUMPENVLSCALE: /* float */
5070	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
5071	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
5072	break;
5073
5074	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
5075	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
5076	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
5077	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
5078	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
5079	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
5080	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
5081	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
5082	/* @todo; not used by MesaGL */
5083	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
5084	break;
5085	#if 0
5086
5087	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
5088	textureType = D3DTSS_TEXCOORDINDEX;
5089	val = pTextureState[i].value;
5090	break;
5091
5092	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
5093	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
5094	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
5095	break;
5096	#endif
5097
5098	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
5099	if (pTextureState[i].value == SVGA3D_INVALID_ID)
5100	{
5101	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x\n", pTextureState[i].stage, pTextureState[i].value));
5102
5103	pContext->aSidActiveTexture[currentStage] = SVGA3D_INVALID_ID;
5104	/* Unselect the currently associated texture. */
5105	glBindTexture(GL_TEXTURE_2D, 0);
5106	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5107	/* Necessary for the fixed pipeline. */
5108	glDisable(GL_TEXTURE_2D);
5109	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5110	}
5111	else
5112	{
5113	uint32_t sid = pTextureState[i].value;
5114
5115	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5116	AssertReturn(sid < pState->cSurfaces && pState->paSurface[sid].id == sid, VERR_INVALID_PARAMETER);
5117
5118	PVMSVGA3DSURFACE pSurface = &pState->paSurface[sid];
5119
5120	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x (%d,%d)\n", pTextureState[i].stage, pTextureState[i].value, pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height));
5121
5122	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5123	{
5124	Assert(pSurface->idAssociatedContext == SVGA3D_INVALID_ID);
5125	Log(("CreateTexture (%d,%d) level=%d\n", pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height, pSurface->faces[0].numMipLevels));
5126	int rc = vmsvga3dCreateTexture(pState, pContext, cid, pSurface);
5127	AssertRCReturn(rc, rc);
5128	}
5129
5130	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
5131	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5132
5133	/* Necessary for the fixed pipeline. */
5134	glEnable(GL_TEXTURE_2D);
5135	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5136
5137	if (pContext->aSidActiveTexture[currentStage] != sid)
5138	{
5139	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5140	for (uint32_t iStage = 0; iStage < SVGA3D_MAX_TEXTURE_STAGE; iStage++)
5141	{
5142	for (uint32_t j = 0; j < SVGA3D_TS_MAX; j++)
5143	{
5144	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureState[iStage][j];
5145
5146	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5147	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5148	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
5149	}
5150	}
5151	}
5152	pContext->aSidActiveTexture[currentStage] = sid;
5153	}
5154	/* Finished; continue with the next one. */
5155	continue;
5156
5157	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5158	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5159	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5160	break;
5161
5162	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5163	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5164	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5165	break;
5166
5167	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5168	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5169	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5170	break;
5171
5172	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5173	//AssertFailed(); /* @todo */
5174	//samplerType = D3DSAMP_MIPFILTER;
5175	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5176	break;
5177
5178	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5179	textureType = GL_TEXTURE_MAG_FILTER;
5180	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5181	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5182	break;
5183
5184	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5185	textureType = GL_TEXTURE_MIN_FILTER;
5186	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5187	break;
5188
5189	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5190	{
5191	GLfloat color[4]; /* red, green, blue, alpha */
5192
5193	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5194
5195	glTexParameterfv(GL_TEXTURE_2D /* @todo flexible type /, GL_TEXTURE_BORDER_COLOR, color); / Identical; default 0.0 identical too */
5196	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5197	break;
5198	}
5199
5200	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5201	glTexParameterf(GL_TEXTURE_2D /* @todo flexible type /, GL_TEXTURE_LOD_BIAS, pTextureState[i].value); / Identical; default 0.0 identical too */
5202	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5203	break;
5204
5205	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5206	textureType = GL_TEXTURE_MAX_LEVEL;
5207	val = pTextureState[i].value; /* Identical?? */
5208	break;
5209
5210	#if 0
5211	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5212	samplerType = D3DSAMP_MAXANISOTROPY;
5213	val = pTextureState[i].value; /* Identical?? */
5214	break;
5215
5216	case SVGA3D_TS_GAMMA: /* float */
5217	samplerType = D3DSAMP_SRGBTEXTURE;
5218	/* Boolean in D3D */
5219	if (pTextureState[i].floatValue == 1.0f)
5220	val = FALSE;
5221	else
5222	val = TRUE;
5223	break;
5224	#endif
5225	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5226	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5227	AssertFailed();
5228	break;
5229
5230	default:
5231	//AssertFailed();
5232	break;
5233	}
5234
5235	if (textureType != ~0U)
5236	{
5237	glTexParameteri(GL_TEXTURE_2D /* @todo flexible type */, textureType, val);
5238	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5239	}
5240	}
5241
5242	return VINF_SUCCESS;
5243	}
5244
5245	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5246	{
5247	PVMSVGA3DCONTEXT pContext;
5248	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5249	AssertReturn(pState, VERR_NO_MEMORY);
5250	GLenum oglFace;
5251
5252	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
5253
5254	if ( cid >= pState->cContexts
5255	\|\| pState->paContext[cid].id != cid)
5256	{
5257	Log(("vmsvga3dSetMaterial invalid context id!\n"));
5258	return VERR_INVALID_PARAMETER;
5259	}
5260	pContext = &pState->paContext[cid];
5261	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5262
5263	switch (face)
5264	{
5265	case SVGA3D_FACE_NONE:
5266	case SVGA3D_FACE_FRONT:
5267	oglFace = GL_FRONT;
5268	break;
5269
5270	case SVGA3D_FACE_BACK:
5271	oglFace = GL_BACK;
5272	break;
5273
5274	case SVGA3D_FACE_FRONT_BACK:
5275	oglFace = GL_FRONT_AND_BACK;
5276	break;
5277
5278	default:
5279	AssertFailedReturn(VERR_INVALID_PARAMETER);
5280	}
5281
5282	/* Save for vm state save/restore. */
5283	pContext->state.aMaterial[face].fValid = true;
5284	pContext->state.aMaterial[face].material = *pMaterial;
5285	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5286
5287	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5288	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5289	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5290	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5291	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5292	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5293
5294	return VINF_SUCCESS;
5295	}
5296
5297	/* @todo Move into separate library as we are using logic from Wine here. */
5298	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5299	{
5300	PVMSVGA3DCONTEXT pContext;
5301	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5302	AssertReturn(pState, VERR_NO_MEMORY);
5303	float QuadAttenuation;
5304
5305	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5306
5307	if ( cid >= pState->cContexts
5308	\|\| pState->paContext[cid].id != cid)
5309	{
5310	Log(("vmsvga3dSetLightData invalid context id!\n"));
5311	return VERR_INVALID_PARAMETER;
5312	}
5313	pContext = &pState->paContext[cid];
5314	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5315
5316	/* Store for vm state save/restore */
5317	if (index < SVGA3D_MAX_LIGHTS)
5318	{
5319	pContext->state.aLightData[index].fValidData = true;
5320	pContext->state.aLightData[index].data = *pData;
5321	}
5322	else
5323	AssertFailed();
5324
5325	if ( pData->attenuation0 < 0.0f
5326	\|\| pData->attenuation1 < 0.0f
5327	\|\| pData->attenuation2 < 0.0f)
5328	{
5329	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5330	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5331	}
5332
5333	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5334	glMatrixMode(GL_MODELVIEW);
5335	glPushMatrix();
5336	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5337
5338	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5339	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5340	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5341
5342	if (pData->range * pData->range >= FLT_MIN)
5343	QuadAttenuation = 1.4f / (pData->range * pData->range);
5344	else
5345	QuadAttenuation = 0.0f;
5346
5347	switch (pData->type)
5348	{
5349	case SVGA3D_LIGHTTYPE_POINT:
5350	{
5351	GLfloat position[4];
5352
5353	position[0] = pData->position[0];
5354	position[1] = pData->position[1];
5355	position[2] = pData->position[2];
5356	position[3] = 1.0f;
5357
5358	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5359	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5360
5361	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5362	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5363
5364	/* Attenuation - Are these right? guessing... */
5365	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5366	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5367
5368	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5369	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5370
5371	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5372	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5373
5374	/* @todo range */
5375	break;
5376	}
5377
5378	case SVGA3D_LIGHTTYPE_SPOT1:
5379	{
5380	GLfloat exponent;
5381	GLfloat position[4];
5382	const GLfloat pi = 4.0f * atanf(1.0f);
5383
5384	position[0] = pData->position[0];
5385	position[1] = pData->position[1];
5386	position[2] = pData->position[2];
5387	position[3] = 1.0f;
5388
5389	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5390	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5391
5392	position[0] = pData->direction[0];
5393	position[1] = pData->direction[1];
5394	position[2] = pData->direction[2];
5395	position[3] = 1.0f;
5396
5397	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5398	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5399
5400	/*
5401	* opengl-ish and d3d-ish spot lights use too different models for the
5402	* light "intensity" as a function of the angle towards the main light direction,
5403	* so we only can approximate very roughly.
5404	* however spot lights are rather rarely used in games (if ever used at all).
5405	* furthermore if still used, probably nobody pays attention to such details.
5406	*/
5407	if (pData->falloff == 0)
5408	{
5409	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5410	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5411	* will always be 1.0 for both of them, and we don't have to care for the
5412	* rest of the rather complex calculation
5413	*/
5414	exponent = 0.0f;
5415	}
5416	else
5417	{
5418	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5419	if (rho < 0.0001f)
5420	rho = 0.0001f;
5421	exponent = -0.3f/log(cos(rho/2));
5422	}
5423	if (exponent > 128.0f)
5424	exponent = 128.0f;
5425
5426	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5427	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5428
5429	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5430	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5431
5432	/* Attenuation - Are these right? guessing... */
5433	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5434	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5435
5436	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5437	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5438
5439	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5440	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5441
5442	/* @todo range */
5443	break;
5444	}
5445
5446	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5447	{
5448	GLfloat position[4];
5449
5450	position[0] = -pData->direction[0];
5451	position[1] = -pData->direction[1];
5452	position[2] = -pData->direction[2];
5453	position[3] = 0.0f;
5454
5455	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5456	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5457
5458	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5459	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5460
5461	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5462	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5463	break;
5464	}
5465
5466	case SVGA3D_LIGHTTYPE_SPOT2:
5467	default:
5468	Log(("Unsupported light type!!\n"));
5469	return VERR_INVALID_PARAMETER;
5470	}
5471
5472	/* Restore the modelview matrix */
5473	glPopMatrix();
5474
5475	return VINF_SUCCESS;
5476	}
5477
5478	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5479	{
5480	PVMSVGA3DCONTEXT pContext;
5481	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5482	AssertReturn(pState, VERR_NO_MEMORY);
5483
5484	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
5485
5486	if ( cid >= pState->cContexts
5487	\|\| pState->paContext[cid].id != cid)
5488	{
5489	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
5490	return VERR_INVALID_PARAMETER;
5491	}
5492	pContext = &pState->paContext[cid];
5493	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5494
5495	/* Store for vm state save/restore */
5496	if (index < SVGA3D_MAX_LIGHTS)
5497	pContext->state.aLightData[index].fEnabled = !!enabled;
5498	else
5499	AssertFailed();
5500
5501	if (enabled)
5502	{
5503	/* Load the default settings if none have been set yet. */
5504	if (!pContext->state.aLightData[index].fValidData)
5505	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5506	glEnable(GL_LIGHT0 + index);
5507	}
5508	else
5509	glDisable(GL_LIGHT0 + index);
5510
5511	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5512	return VINF_SUCCESS;
5513	}
5514
5515	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5516	{
5517	PVMSVGA3DCONTEXT pContext;
5518	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5519	AssertReturn(pState, VERR_NO_MEMORY);
5520
5521	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5522
5523	if ( cid >= pState->cContexts
5524	\|\| pState->paContext[cid].id != cid)
5525	{
5526	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5527	return VERR_INVALID_PARAMETER;
5528	}
5529	pContext = &pState->paContext[cid];
5530	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5531
5532	/* Save for vm state save/restore. */
5533	pContext->state.RectViewPort = *pRect;
5534	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5535
5536	/* @todo y-inversion for partial viewport coordinates? */
5537	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5538	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5539
5540	/* Reset the projection matrix as that relies on the viewport setting. */
5541	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5542	{
5543	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5544	}
5545	else
5546	{
5547	float matrix[16];
5548
5549	/* identity matrix if no matrix set. */
5550	memset(matrix, 0, sizeof(matrix));
5551	matrix[0] = 1.0;
5552	matrix[5] = 1.0;
5553	matrix[10] = 1.0;
5554	matrix[15] = 1.0;
5555	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5556	}
5557
5558	return VINF_SUCCESS;
5559	}
5560
5561	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5562	{
5563	PVMSVGA3DCONTEXT pContext;
5564	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5565	AssertReturn(pState, VERR_NO_MEMORY);
5566	double oglPlane[4];
5567
5568	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)));
5569	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5570
5571	if ( cid >= pState->cContexts
5572	\|\| pState->paContext[cid].id != cid)
5573	{
5574	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5575	return VERR_INVALID_PARAMETER;
5576	}
5577	pContext = &pState->paContext[cid];
5578	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5579
5580	/* Store for vm state save/restore. */
5581	pContext->state.aClipPlane[index].fValid = true;
5582	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(plane));
5583
5584	/* @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5585	oglPlane[0] = (double)plane[0];
5586	oglPlane[1] = (double)plane[1];
5587	oglPlane[2] = (double)plane[2];
5588	oglPlane[3] = (double)plane[3];
5589
5590	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5591	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5592
5593	return VINF_SUCCESS;
5594	}
5595
5596	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5597	{
5598	PVMSVGA3DCONTEXT pContext;
5599	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5600	AssertReturn(pState, VERR_NO_MEMORY);
5601
5602	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5603
5604	if ( cid >= pState->cContexts
5605	\|\| pState->paContext[cid].id != cid)
5606	{
5607	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5608	return VERR_INVALID_PARAMETER;
5609	}
5610	pContext = &pState->paContext[cid];
5611	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5612
5613	/* Store for vm state save/restore. */
5614	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5615	pContext->state.RectScissor = *pRect;
5616
5617	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5618	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5619
5620	return VINF_SUCCESS;
5621	}
5622
5623	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5624	{
5625	/* Convert byte color components to float (0-1.0) */
5626	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5627	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5628	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5629	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5630	}
5631
5632	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil, uint32_t cRects, SVGA3dRect *pRect)
5633	{
5634	GLbitfield mask = 0;
5635	PVMSVGA3DCONTEXT pContext;
5636	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5637	AssertReturn(pState, VERR_NO_MEMORY);
5638	GLboolean fDepthWriteEnabled = GL_FALSE;
5639
5640	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));
5641
5642	if ( cid >= pState->cContexts
5643	\|\| pState->paContext[cid].id != cid)
5644	{
5645	Log(("vmsvga3dCommandClear invalid context id!\n"));
5646	return VERR_INVALID_PARAMETER;
5647	}
5648	pContext = &pState->paContext[cid];
5649	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5650
5651	if (clearFlag & SVGA3D_CLEAR_COLOR)
5652	{
5653	GLfloat red, green, blue, alpha;
5654
5655	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5656
5657	/* Set the color clear value. */
5658	glClearColor(red, green, blue, alpha);
5659
5660	mask \|= GL_COLOR_BUFFER_BIT;
5661	}
5662	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5663	{
5664	/* @todo possibly the same problem as with glDepthMask */
5665	glClearStencil(stencil);
5666	mask \|= GL_STENCIL_BUFFER_BIT;
5667	}
5668	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5669	{
5670	glClearDepth((GLdouble)depth);
5671	mask \|= GL_DEPTH_BUFFER_BIT;
5672
5673	/* glClear will not clear the depth buffer if writing is disabled. */
5674	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5675	if (fDepthWriteEnabled == GL_FALSE)
5676	glDepthMask(GL_TRUE);
5677	}
5678
5679	if (cRects)
5680	{
5681	/* Save the current scissor test bit and scissor box. */
5682	glPushAttrib(GL_SCISSOR_BIT);
5683	glEnable(GL_SCISSOR_TEST);
5684	for (unsigned i=0; i < cRects; i++)
5685	{
5686	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));
5687	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5688	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5689	glClear(mask);
5690	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5691	}
5692	/* Restore the old scissor test bit and box */
5693	glPopAttrib();
5694	}
5695	else
5696	{
5697	glClear(mask);
5698	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5699	}
5700
5701	/* Restore depth write state. */
5702	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5703	&& fDepthWriteEnabled == GL_FALSE)
5704	glDepthMask(GL_FALSE);
5705
5706	return VINF_SUCCESS;
5707	}
5708
5709	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5710	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5711	{
5712	normalized = GL_FALSE;
5713	switch (identity.type)
5714	{
5715	case SVGA3D_DECLTYPE_FLOAT1:
5716	size = 1;
5717	type = GL_FLOAT;
5718	break;
5719	case SVGA3D_DECLTYPE_FLOAT2:
5720	size = 2;
5721	type = GL_FLOAT;
5722	break;
5723	case SVGA3D_DECLTYPE_FLOAT3:
5724	size = 3;
5725	type = GL_FLOAT;
5726	break;
5727	case SVGA3D_DECLTYPE_FLOAT4:
5728	size = 4;
5729	type = GL_FLOAT;
5730	break;
5731
5732	case SVGA3D_DECLTYPE_D3DCOLOR:
5733	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5734	type = GL_UNSIGNED_BYTE;
5735	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5736	break;
5737
5738	case SVGA3D_DECLTYPE_UBYTE4N:
5739	normalized = GL_TRUE;
5740	/* no break */
5741	case SVGA3D_DECLTYPE_UBYTE4:
5742	size = 4;
5743	type = GL_UNSIGNED_BYTE;
5744	break;
5745
5746	case SVGA3D_DECLTYPE_SHORT2N:
5747	normalized = GL_TRUE;
5748	/* no break */
5749	case SVGA3D_DECLTYPE_SHORT2:
5750	size = 2;
5751	type = GL_SHORT;
5752	break;
5753
5754	case SVGA3D_DECLTYPE_SHORT4N:
5755	normalized = GL_TRUE;
5756	/* no break */
5757	case SVGA3D_DECLTYPE_SHORT4:
5758	size = 4;
5759	type = GL_SHORT;
5760	break;
5761
5762	case SVGA3D_DECLTYPE_USHORT4N:
5763	normalized = GL_TRUE;
5764	size = 4;
5765	type = GL_UNSIGNED_SHORT;
5766	break;
5767
5768	case SVGA3D_DECLTYPE_USHORT2N:
5769	normalized = GL_TRUE;
5770	size = 2;
5771	type = GL_UNSIGNED_SHORT;
5772	break;
5773
5774	case SVGA3D_DECLTYPE_UDEC3:
5775	size = 3;
5776	type = GL_UNSIGNED_INT_2_10_10_10_REV; /* @todo correct? */
5777	break;
5778
5779	case SVGA3D_DECLTYPE_DEC3N:
5780	normalized = true;
5781	size = 3;
5782	type = GL_INT_2_10_10_10_REV; /* @todo correct? */
5783	break;
5784
5785	case SVGA3D_DECLTYPE_FLOAT16_2:
5786	size = 2;
5787	type = GL_HALF_FLOAT;
5788	break;
5789	case SVGA3D_DECLTYPE_FLOAT16_4:
5790	size = 4;
5791	type = GL_HALF_FLOAT;
5792	break;
5793	default:
5794	AssertFailedReturn(VERR_INVALID_PARAMETER);
5795	}
5796
5797	//pVertexElement->Method = identity.method;
5798	//pVertexElement->Usage = identity.usage;
5799
5800	return VINF_SUCCESS;
5801	}
5802
5803	/* Convert VMWare primitive type to its OpenGL equivalent. */
5804	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5805	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5806	{
5807	switch (PrimitiveType)
5808	{
5809	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5810	*pMode = GL_TRIANGLES;
5811	pcVertices = cPrimitiveCount 3;
5812	break;
5813	case SVGA3D_PRIMITIVE_POINTLIST:
5814	*pMode = GL_POINTS;
5815	*pcVertices = cPrimitiveCount;
5816	break;
5817	case SVGA3D_PRIMITIVE_LINELIST:
5818	*pMode = GL_LINES;
5819	pcVertices = cPrimitiveCount 2;
5820	break;
5821	case SVGA3D_PRIMITIVE_LINESTRIP:
5822	*pMode = GL_LINE_STRIP;
5823	*pcVertices = cPrimitiveCount + 1;
5824	break;
5825	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5826	*pMode = GL_TRIANGLE_STRIP;
5827	*pcVertices = cPrimitiveCount + 2;
5828	break;
5829	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5830	*pMode = GL_TRIANGLE_FAN;
5831	*pcVertices = cPrimitiveCount + 2;
5832	break;
5833	default:
5834	return VERR_INVALID_PARAMETER;
5835	}
5836	return VINF_SUCCESS;
5837	}
5838
5839	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
5840	{
5841	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
5842	PVMSVGA3DSURFACE pVertexSurface;
5843
5844	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5845	AssertReturn(sidVertex < pState->cSurfaces && pState->paSurface[sidVertex].id == sidVertex, VERR_INVALID_PARAMETER);
5846
5847	pVertexSurface = &pState->paSurface[sidVertex];
5848	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
5849
5850	/* Create and/or bind the vertex buffer. */
5851	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
5852	{
5853	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
5854	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
5855	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5856
5857	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5858	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5859
5860	Assert(pVertexSurface->fDirty);
5861	/* @todo rethink usage dynamic/static */
5862	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
5863	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5864
5865	pVertexSurface->pMipmapLevels[0].fDirty = false;
5866	pVertexSurface->fDirty = false;
5867
5868	pVertexSurface->flags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
5869	}
5870	else
5871	{
5872	Assert(pVertexSurface->fDirty == false);
5873	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5874	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5875	}
5876	pVertexSurface->idAssociatedContext = pContext->id;
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, (const GLvoid *)pVertexDecl[iVertex].array.offset);
5897	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5898	/* case SVGA3D_DECLUSAGE_COLOR: @todo color component order not identical!! test GL_BGRA!! */
5899	}
5900	else
5901	{
5902	/* Use the predefined selection of vertex streams for the fixed pipeline. */
5903	switch (pVertexDecl[iVertex].identity.usage)
5904	{
5905	case SVGA3D_DECLUSAGE_POSITION:
5906	glEnableClientState(GL_VERTEX_ARRAY);
5907	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5908	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride, (const GLvoid *)pVertexDecl[iVertex].array.offset);
5909	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5910	break;
5911	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
5912	AssertFailed();
5913	break;
5914	case SVGA3D_DECLUSAGE_BLENDINDICES:
5915	AssertFailed();
5916	break;
5917	case SVGA3D_DECLUSAGE_NORMAL:
5918	glEnableClientState(GL_NORMAL_ARRAY);
5919	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5920	glNormalPointer(type, pVertexDecl[iVertex].array.stride, (const GLvoid *)pVertexDecl[iVertex].array.offset);
5921	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5922	break;
5923	case SVGA3D_DECLUSAGE_PSIZE:
5924	AssertFailed();
5925	break;
5926	case SVGA3D_DECLUSAGE_TEXCOORD:
5927	/* Specify the affected texture unit. */
5928	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5929	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
5930	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5931	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride, (const GLvoid *)pVertexDecl[iVertex].array.offset);
5932	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5933	break;
5934	case SVGA3D_DECLUSAGE_TANGENT:
5935	AssertFailed();
5936	break;
5937	case SVGA3D_DECLUSAGE_BINORMAL:
5938	AssertFailed();
5939	break;
5940	case SVGA3D_DECLUSAGE_TESSFACTOR:
5941	AssertFailed();
5942	break;
5943	case SVGA3D_DECLUSAGE_POSITIONT:
5944	AssertFailed(); /* see position_transformed in Wine */
5945	break;
5946	case SVGA3D_DECLUSAGE_COLOR: /* @todo color component order not identical!! test GL_BGRA!! */
5947	glEnableClientState(GL_COLOR_ARRAY);
5948	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5949	glColorPointer(size, type, pVertexDecl[iVertex].array.stride, (const GLvoid *)pVertexDecl[iVertex].array.offset);
5950	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5951	break;
5952	case SVGA3D_DECLUSAGE_FOG:
5953	glEnableClientState(GL_FOG_COORD_ARRAY);
5954	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5955	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride, (const GLvoid *)pVertexDecl[iVertex].array.offset);
5956	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5957	break;
5958	case SVGA3D_DECLUSAGE_DEPTH:
5959	AssertFailed();
5960	break;
5961	case SVGA3D_DECLUSAGE_SAMPLE:
5962	AssertFailed();
5963	break;
5964	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
5965	}
5966	}
5967
5968	#ifdef LOG_ENABLED
5969	if (pVertexDecl[iVertex].array.stride == 0)
5970	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
5971	#endif
5972	}
5973
5974	return VINF_SUCCESS;
5975	}
5976
5977	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
5978	{
5979	/* Setup the vertex declarations. */
5980	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5981	{
5982	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5983	{
5984	/* Use numbered vertex arrays when shaders are active. */
5985	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
5986	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5987	}
5988	else
5989	{
5990	/* Use the predefined selection of vertex streams for the fixed pipeline. */
5991	switch (pVertexDecl[iVertex].identity.usage)
5992	{
5993	case SVGA3D_DECLUSAGE_POSITION:
5994	glDisableClientState(GL_VERTEX_ARRAY);
5995	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5996	break;
5997	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
5998	break;
5999	case SVGA3D_DECLUSAGE_BLENDINDICES:
6000	break;
6001	case SVGA3D_DECLUSAGE_NORMAL:
6002	glDisableClientState(GL_NORMAL_ARRAY);
6003	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6004	break;
6005	case SVGA3D_DECLUSAGE_PSIZE:
6006	break;
6007	case SVGA3D_DECLUSAGE_TEXCOORD:
6008	/* Specify the affected texture unit. */
6009	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6010	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
6011	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6012	break;
6013	case SVGA3D_DECLUSAGE_TANGENT:
6014	break;
6015	case SVGA3D_DECLUSAGE_BINORMAL:
6016	break;
6017	case SVGA3D_DECLUSAGE_TESSFACTOR:
6018	break;
6019	case SVGA3D_DECLUSAGE_POSITIONT:
6020	break;
6021	case SVGA3D_DECLUSAGE_COLOR: /* @todo color component order not identical!! */
6022	glDisableClientState(GL_COLOR_ARRAY);
6023	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6024	break;
6025	case SVGA3D_DECLUSAGE_FOG:
6026	glDisableClientState(GL_FOG_COORD_ARRAY);
6027	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6028	break;
6029	case SVGA3D_DECLUSAGE_DEPTH:
6030	break;
6031	case SVGA3D_DECLUSAGE_SAMPLE:
6032	break;
6033	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6034	}
6035	}
6036	}
6037	/* Unbind the vertex buffer after usage. */
6038	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
6039	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6040	return VINF_SUCCESS;
6041	}
6042
6043	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl pVertexDecl, uint32_t numRanges, SVGA3dPrimitiveRange pRange, uint32_t cVertexDivisor, SVGA3dVertexDivisor *pVertexDivisor)
6044	{
6045	PVMSVGA3DCONTEXT pContext;
6046	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6047	AssertReturn(pState, VERR_INTERNAL_ERROR);
6048	int rc = VERR_NOT_IMPLEMENTED;
6049	uint32_t iCurrentVertex;
6050
6051	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
6052
6053	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
6054	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
6055	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
6056	/* @todo */
6057	Assert(!cVertexDivisor);
6058
6059	if ( cid >= pState->cContexts
6060	\|\| pState->paContext[cid].id != cid)
6061	{
6062	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
6063	return VERR_INVALID_PARAMETER;
6064	}
6065	pContext = &pState->paContext[cid];
6066	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6067
6068	/* Flush any shader changes. */
6069	if (pContext->pShaderContext)
6070	{
6071	uint32_t rtHeight = 0;
6072
6073	if (pContext->sidRenderTarget != SVGA_ID_INVALID)
6074	{
6075	PVMSVGA3DSURFACE pRenderTarget = &pState->paSurface[pContext->sidRenderTarget];
6076	rtHeight = pRenderTarget->pMipmapLevels[0].size.height;
6077	}
6078
6079	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6080	}
6081
6082	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6083	iCurrentVertex = 0;
6084	while (iCurrentVertex < numVertexDecls)
6085	{
6086	uint32_t sidVertex = SVGA_ID_INVALID;
6087	uint32_t iVertex;
6088
6089	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6090	{
6091	if ( sidVertex != SVGA_ID_INVALID
6092	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6093	)
6094	break;
6095	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6096	}
6097
6098	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pState, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6099	AssertRCReturn(rc, rc);
6100
6101	iCurrentVertex = iVertex;
6102	}
6103
6104	/* Now draw the primitives. */
6105	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6106	{
6107	GLenum modeDraw;
6108	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6109	PVMSVGA3DSURFACE pIndexSurface = NULL;
6110	unsigned cVertices;
6111
6112	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6113	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6114	if (RT_FAILURE(rc))
6115	{
6116	AssertRC(rc);
6117	goto internal_error;
6118	}
6119
6120	if (sidIndex != SVGA3D_INVALID_ID)
6121	{
6122	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6123
6124	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
6125	\|\| sidIndex >= pState->cSurfaces
6126	\|\| pState->paSurface[sidIndex].id != sidIndex)
6127	{
6128	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
6129	Assert(sidIndex < pState->cSurfaces && pState->paSurface[sidIndex].id == sidIndex);
6130	rc = VERR_INVALID_PARAMETER;
6131	goto internal_error;
6132	}
6133	pIndexSurface = &pState->paSurface[sidIndex];
6134	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6135
6136	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6137	{
6138	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6139
6140	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6141	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6142
6143	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6144	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6145
6146	Assert(pIndexSurface->fDirty);
6147
6148	/* @todo rethink usage dynamic/static */
6149	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6150	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6151
6152	pIndexSurface->pMipmapLevels[0].fDirty = false;
6153	pIndexSurface->fDirty = false;
6154
6155	pIndexSurface->flags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6156	}
6157	else
6158	{
6159	Assert(pIndexSurface->fDirty == false);
6160
6161	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6162	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6163	}
6164	pIndexSurface->idAssociatedContext = pContext->id;
6165	}
6166
6167	if (!pIndexSurface)
6168	{
6169	/* Render without an index buffer */
6170	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
6171	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6172	}
6173	else
6174	{
6175	Assert(pRange[iPrimitive].indexBias >= 0); /* @todo */
6176	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6177
6178	/* Render with an index buffer */
6179	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));
6180	if (pRange[iPrimitive].indexBias == 0)
6181	{
6182	glDrawElements(modeDraw,
6183	cVertices,
6184	(pRange[iPrimitive].indexWidth == sizeof(uint16_t)) ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
6185	(GLvoid )(pRange[iPrimitive].indexArray.offset)); / byte offset in indices buffer */
6186	}
6187	else
6188	pState->ext.glDrawElementsBaseVertex(modeDraw,
6189	cVertices,
6190	(pRange[iPrimitive].indexWidth == sizeof(uint16_t)) ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
6191	(GLvoid )(pRange[iPrimitive].indexArray.offset), / byte offset in indices buffer */
6192	pRange[iPrimitive].indexBias); /* basevertex */
6193
6194	/* Unbind the index buffer after usage. */
6195	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6196	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6197	}
6198	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6199	}
6200
6201	internal_error:
6202
6203	/* Deactivate the vertex declarations. */
6204	iCurrentVertex = 0;
6205	while (iCurrentVertex < numVertexDecls)
6206	{
6207	uint32_t sidVertex = SVGA_ID_INVALID;
6208	uint32_t iVertex;
6209
6210	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6211	{
6212	if ( sidVertex != SVGA_ID_INVALID
6213	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6214	)
6215	break;
6216	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6217	}
6218
6219	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pState, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6220	AssertRCReturn(rc, rc);
6221
6222	iCurrentVertex = iVertex;
6223	}
6224	#ifdef DEBUG
6225	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTexture); i++)
6226	{
6227	if (pContext->aSidActiveTexture[i] != SVGA3D_INVALID_ID)
6228	{
6229	GLint activeTexture = 0;
6230	GLint activeTextureUnit = 0;
6231
6232	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6233	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6234
6235	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
6236	pState->ext.glActiveTexture(activeTextureUnit);
6237
6238	if (pContext->aSidActiveTexture[activeTextureUnit - GL_TEXTURE0] != SVGA3D_INVALID_ID)
6239	{
6240	PVMSVGA3DSURFACE pTexture;
6241	pTexture = &pState->paSurface[pContext->aSidActiveTexture[activeTextureUnit - GL_TEXTURE0]];
6242
6243	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture, ("%x vs %x unit %d - %d\n", pTexture->oglId.texture, activeTexture, i, activeTextureUnit - GL_TEXTURE0));
6244	}
6245	}
6246	}
6247	#endif
6248
6249	#ifdef DEBUG_GFX_WINDOW
6250	if (pContext->aSidActiveTexture[0])
6251	{
6252	SVGA3dCopyRect rect;
6253
6254	rect.srcx = rect.srcy = rect.x = rect.y = 0;
6255	rect.w = 800;
6256	rect.h = 600;
6257	vmsvga3dCommandPresent(pThis, pContext->sidRenderTarget, 0, NULL);
6258	}
6259	#endif
6260	return rc;
6261	}
6262
6263
6264	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6265	{
6266	PVMSVGA3DCONTEXT pContext;
6267	PVMSVGA3DSHADER pShader;
6268	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6269	AssertReturn(pState, VERR_NO_MEMORY);
6270	int rc;
6271
6272	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6273	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6274
6275	if ( cid >= pState->cContexts
6276	\|\| pState->paContext[cid].id != cid)
6277	{
6278	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6279	return VERR_INVALID_PARAMETER;
6280	}
6281	pContext = &pState->paContext[cid];
6282	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6283
6284	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6285	if (type == SVGA3D_SHADERTYPE_VS)
6286	{
6287	if (shid >= pContext->cVertexShaders)
6288	{
6289	pContext->paVertexShader = (PVMSVGA3DSHADER)RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) * (shid + 1));
6290	AssertReturn(pContext->paVertexShader, VERR_NO_MEMORY);
6291	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6292	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6293	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6294	pContext->cVertexShaders = shid + 1;
6295	}
6296	/* If one already exists with this id, then destroy it now. */
6297	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6298	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6299
6300	pShader = &pContext->paVertexShader[shid];
6301	}
6302	else
6303	{
6304	Assert(type == SVGA3D_SHADERTYPE_PS);
6305	if (shid >= pContext->cPixelShaders)
6306	{
6307	pContext->paPixelShader = (PVMSVGA3DSHADER)RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) * (shid + 1));
6308	AssertReturn(pContext->paPixelShader, VERR_NO_MEMORY);
6309	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6310	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6311	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6312	pContext->cPixelShaders = shid + 1;
6313	}
6314	/* If one already exists with this id, then destroy it now. */
6315	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6316	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6317
6318	pShader = &pContext->paPixelShader[shid];
6319	}
6320
6321	memset(pShader, 0, sizeof(*pShader));
6322	pShader->id = shid;
6323	pShader->cid = cid;
6324	pShader->type = type;
6325	pShader->cbData = cbData;
6326	pShader->pShaderProgram = RTMemAllocZ(cbData);
6327	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6328	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6329
6330	switch (type)
6331	{
6332	case SVGA3D_SHADERTYPE_VS:
6333	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6334	break;
6335
6336	case SVGA3D_SHADERTYPE_PS:
6337	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6338	break;
6339
6340	default:
6341	AssertFailedReturn(VERR_INVALID_PARAMETER);
6342	}
6343
6344	return rc;
6345	}
6346
6347	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6348	{
6349	PVMSVGA3DCONTEXT pContext;
6350	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6351	AssertReturn(pState, VERR_NO_MEMORY);
6352	PVMSVGA3DSHADER pShader = NULL;
6353	int rc;
6354
6355	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6356
6357	if ( cid >= pState->cContexts
6358	\|\| pState->paContext[cid].id != cid)
6359	{
6360	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6361	return VERR_INVALID_PARAMETER;
6362	}
6363	pContext = &pState->paContext[cid];
6364	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6365
6366	if (type == SVGA3D_SHADERTYPE_VS)
6367	{
6368	if ( shid < pContext->cVertexShaders
6369	&& pContext->paVertexShader[shid].id == shid)
6370	{
6371	pShader = &pContext->paVertexShader[shid];
6372	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6373	AssertRC(rc);
6374	}
6375	}
6376	else
6377	{
6378	Assert(type == SVGA3D_SHADERTYPE_PS);
6379	if ( shid < pContext->cPixelShaders
6380	&& pContext->paPixelShader[shid].id == shid)
6381	{
6382	pShader = &pContext->paPixelShader[shid];
6383	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6384	AssertRC(rc);
6385	}
6386	}
6387
6388	if (pShader)
6389	{
6390	if (pShader->pShaderProgram)
6391	RTMemFree(pShader->pShaderProgram);
6392	memset(pShader, 0, sizeof(*pShader));
6393	pShader->id = SVGA3D_INVALID_ID;
6394	}
6395	else
6396	AssertFailedReturn(VERR_INVALID_PARAMETER);
6397
6398	return VINF_SUCCESS;
6399	}
6400
6401	int vmsvga3dShaderSet(PVGASTATE pThis, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6402	{
6403	PVMSVGA3DCONTEXT pContext;
6404	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6405	AssertReturn(pState, VERR_NO_MEMORY);
6406	int rc;
6407
6408	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6409
6410	if ( cid >= pState->cContexts
6411	\|\| pState->paContext[cid].id != cid)
6412	{
6413	Log(("vmsvga3dShaderSet invalid context id!\n"));
6414	return VERR_INVALID_PARAMETER;
6415	}
6416	pContext = &pState->paContext[cid];
6417	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6418
6419	if (type == SVGA3D_SHADERTYPE_VS)
6420	{
6421	/* Save for vm state save/restore. */
6422	pContext->state.shidVertex = shid;
6423	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6424
6425	if ( shid < pContext->cVertexShaders
6426	&& pContext->paVertexShader[shid].id == shid)
6427	{
6428	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6429	Assert(type == pShader->type);
6430
6431	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6432	AssertRCReturn(rc, rc);
6433	}
6434	else
6435	if (shid == SVGA_ID_INVALID)
6436	{
6437	/* Unselect shader. */
6438	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6439	AssertRCReturn(rc, rc);
6440	}
6441	else
6442	AssertFailedReturn(VERR_INVALID_PARAMETER);
6443	}
6444	else
6445	{
6446	/* Save for vm state save/restore. */
6447	pContext->state.shidPixel = shid;
6448	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6449
6450	Assert(type == SVGA3D_SHADERTYPE_PS);
6451	if ( shid < pContext->cPixelShaders
6452	&& pContext->paPixelShader[shid].id == shid)
6453	{
6454	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6455	Assert(type == pShader->type);
6456
6457	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6458	AssertRCReturn(rc, rc);
6459	}
6460	else
6461	if (shid == SVGA_ID_INVALID)
6462	{
6463	/* Unselect shader. */
6464	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6465	AssertRCReturn(rc, rc);
6466	}
6467	else
6468	AssertFailedReturn(VERR_INVALID_PARAMETER);
6469	}
6470
6471	return VINF_SUCCESS;
6472	}
6473
6474	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6475	{
6476	PVMSVGA3DCONTEXT pContext;
6477	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6478	AssertReturn(pState, VERR_NO_MEMORY);
6479	int rc;
6480
6481	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6482
6483	if ( cid >= pState->cContexts
6484	\|\| pState->paContext[cid].id != cid)
6485	{
6486	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6487	return VERR_INVALID_PARAMETER;
6488	}
6489	pContext = &pState->paContext[cid];
6490	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6491
6492	for (uint32_t i = 0; i < cRegisters; i++)
6493	{
6494	#ifdef LOG_ENABLED
6495	switch (ctype)
6496	{
6497	case SVGA3D_CONST_TYPE_FLOAT:
6498	{
6499	float pValuesF = (float )pValues;
6500	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)));
6501	break;
6502	}
6503
6504	case SVGA3D_CONST_TYPE_INT:
6505	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6506	break;
6507
6508	case SVGA3D_CONST_TYPE_BOOL:
6509	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6510	break;
6511	}
6512	#endif
6513	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6514	}
6515
6516	switch (type)
6517	{
6518	case SVGA3D_SHADERTYPE_VS:
6519	switch (ctype)
6520	{
6521	case SVGA3D_CONST_TYPE_FLOAT:
6522	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6523	break;
6524
6525	case SVGA3D_CONST_TYPE_INT:
6526	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6527	break;
6528
6529	case SVGA3D_CONST_TYPE_BOOL:
6530	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6531	break;
6532
6533	default:
6534	AssertFailedReturn(VERR_INVALID_PARAMETER);
6535	}
6536	AssertRCReturn(rc, rc);
6537	break;
6538
6539	case SVGA3D_SHADERTYPE_PS:
6540	switch (ctype)
6541	{
6542	case SVGA3D_CONST_TYPE_FLOAT:
6543	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6544	break;
6545
6546	case SVGA3D_CONST_TYPE_INT:
6547	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6548	break;
6549
6550	case SVGA3D_CONST_TYPE_BOOL:
6551	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6552	break;
6553
6554	default:
6555	AssertFailedReturn(VERR_INVALID_PARAMETER);
6556	}
6557	AssertRCReturn(rc, rc);
6558	break;
6559
6560	default:
6561	AssertFailedReturn(VERR_INVALID_PARAMETER);
6562	}
6563
6564	return VINF_SUCCESS;
6565	}
6566
6567
6568	int vmsvga3dQueryBegin(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type)
6569	{
6570	AssertFailed();
6571	return VERR_NOT_IMPLEMENTED;
6572	}
6573
6574	int vmsvga3dQueryEnd(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
6575	{
6576	AssertFailed();
6577	return VERR_NOT_IMPLEMENTED;
6578	}
6579
6580	int vmsvga3dQueryWait(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
6581	{
6582	AssertFailed();
6583	return VERR_NOT_IMPLEMENTED;
6584	}
6585

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 53752

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