DevVGA-SVGA3d-ogl.cpp@ 54211

Last change on this file since 54211 was 54211, checked in by vboxsync, 10 years ago
DevVGA=SVGA3d-ogl.cpp: AssertReturn -> AssertReturnStmt and free double buffer.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 269.0 KB

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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 54211 2015-02-15 04:01:53Z 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	# define VBOX_VMSVGA3D_GL_HACK_LEVEL 0x103
80	#endif
81	#include "vmsvga_glext/glext.h"
82
83	#include "shaderlib/shaderlib.h"
84
85	#include <stdlib.h>
86	#include <math.h>
87	#include <float.h>
88
89
90	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
91	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
92	#ifdef RT_OS_DARWIN
93	extern "C" int ExplicitlyLoadVBoxSVGA3DObjC(bool fResolveAllImports, PRTERRINFO pErrInfo);
94	#endif
95
96
97	/*******************************************************************************
98	* Defined Constants And Macros *
99	*******************************************************************************/
100	/** @def VBOX_VMSVGA3D_GL_HACK_LEVEL
101	* Turns out that on Linux gl.h may often define the first 2-4 OpenGL versions
102	* worth of extensions, but missing out on a function pointer of fifteen. This
103	* causes headache for us when we use the function pointers below. This hack
104	* changes the code to call the known problematic functions directly.
105	* The value is ((x)<<16 \| (y)) where x and y are taken from the GL_VERSION_x_y.
106	*/
107	#ifndef VBOX_VMSVGA3D_GL_HACK_LEVEL
108	# define VBOX_VMSVGA3D_GL_HACK_LEVEL 0
109	#endif
110
111	#ifndef VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE
112	# define VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE 1.0
113	#endif
114
115	#ifdef RT_OS_WINDOWS
116	# define OGLGETPROCADDRESS wglGetProcAddress
117
118	#elif defined(RT_OS_DARWIN)
119	# include <dlfcn.h>
120	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
121	/** Resolves an OpenGL symbol. */
122	static void MyNSGLGetProcAddress(const char pszSymbol)
123	{
124	/* Another copy in shaderapi.c. */
125	static void *s_pvImage = NULL;
126	if (s_pvImage == NULL)
127	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
128	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
129	}
130
131	#else
132	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
133	#endif
134
135	/* Invert y-coordinate for OpenGL's bottom left origin. */
136	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->pMipmapLevels[0].size.height - (y_coordinate))
137	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
138
139	#define OPENGL_INVALID_ID 0
140
141	//#define MANUAL_FLIP_SURFACE_DATA
142	/* Enable to render the result of DrawPrimitive in a seperate window. */
143	//#define DEBUG_GFX_WINDOW
144
145	#define VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState) \
146	do { (pState)->idActiveContext = OPENGL_INVALID_ID; } while (0)
147
148	/** @def VMSVGA3D_SET_CURRENT_CONTEXT
149	* Makes sure the @a pContext is the active OpenGL context.
150	* @parm pState The VMSVGA3d state.
151	* @parm pContext The new context.
152	*/
153	#ifdef RT_OS_WINDOWS
154	# define VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext) \
155	if ((pState)->idActiveContext != pContext->id) \
156	{ \
157	BOOL fMakeCurrentRc = wglMakeCurrent((pContext)->hdc, (pContext)->hglrc); \
158	Assert(fMakeCurrentRc == TRUE); \
159	pState->idActiveContext = (pContext)->id; \
160	} else do { } while (0)
161
162	#elif defined(RT_OS_DARWIN)
163	# define VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext) \
164	if ((pState)->idActiveContext != (pContext)->id) \
165	{ \
166	vmsvga3dCocoaViewMakeCurrentContext((pContext)->cocoaView, (pContext)->cocoaContext); \
167	(pState)->idActiveContext = (pContext)->id; \
168	} else do { } while (0)
169	#else
170	# define VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext) \
171	if ((pState)->idActiveContext != (pContext)->id) \
172	{ \
173	Bool fMakeCurrentRc = glXMakeCurrent((pState)->display, \
174	(pContext)->window, \
175	(pContext)->glxContext); \
176	Assert(fMakeCurrentRc == True); \
177	(pState)->idActiveContext = (pContext)->id; \
178	} else do { } while (0)
179	#endif
180
181	/** @def VMSVGA3D_CLEAR_LAST_ERRORS
182	* Clears all pending OpenGL errors.
183	*
184	* If I understood this correctly, OpenGL maintains a bitmask internally and
185	* glGetError gets the next bit (clearing it) from the bitmap and translates it
186	* into a GL_XXX constant value which it then returns. A single OpenGL call can
187	* set more than one bit, and they stick around across calls, from what I
188	* understand.
189	*
190	* So in order to be able to use glGetError to check whether a function
191	* succeeded, we need to call glGetError until all error bits have been cleared.
192	* This macro does that (in all types of builds).
193	*
194	* @sa VMSVGA3D_GET_GL_ERROR, VMSVGA3D_GL_IS_SUCCESS
195	*/
196	#define VMSVGA3D_CLEAR_GL_ERRORS() \
197	do { \
198	if (RT_UNLIKELY(glGetError() != GL_NO_ERROR)) /* predict no errors pending */ \
199	{ \
200	uint32_t iErrorClearingLoopsLeft = 64; \
201	while (glGetError() != GL_NO_ERROR && iErrorClearingLoopsLeft > 0) \
202	iErrorClearingLoopsLeft--; \
203	} \
204	} while (0)
205
206	/** @def VMSVGA3D_GET_LAST_GL_ERROR
207	* Gets the last OpenGL error, stores it in a_pContext->lastError and returns
208	* it.
209	*
210	* @returns Same as glGetError.
211	* @param a_pContext The context to store the error in.
212	*
213	* @sa VMSVGA3D_GL_IS_SUCCESS, VMSVGA3D_GL_COMPLAIN
214	*/
215	#define VMSVGA3D_GET_GL_ERROR(a_pContext) ((a_pContext)->lastError = glGetError())
216
217	/** @def VMSVGA3D_GL_SUCCESS
218	* Checks whether VMSVGA3D_GET_LAST_GL_ERROR() return GL_NO_ERROR.
219	*
220	* Will call glGetError() and store the result in a_pContext->lastError.
221	* Will predict GL_NO_ERROR outcome.
222	*
223	* @returns True on success, false on error.
224	* @parm a_pContext The context to store the error in.
225	*
226	* @sa VMSVGA3D_GET_GL_ERROR, VMSVGA3D_GL_COMPLAIN
227	*/
228	#define VMSVGA3D_GL_IS_SUCCESS(a_pContext) RT_LIKELY((((a_pContext)->lastError = glGetError()) == GL_NO_ERROR))
229
230	/** @def VMSVGA3D_GL_COMPLAIN
231	* Complains about one or more OpenGL errors (first in a_pContext->lastError).
232	*
233	* Strict builds will trigger an assertion, while other builds will put the
234	* first few occurences in the release log.
235	*
236	* All GL errors will be cleared after invocation. Assumes lastError
237	* is an error, will not check for GL_NO_ERROR.
238	*
239	* @param a_pState The 3D state structure.
240	* @param a_pContext The context that holds the first error.
241	* @param a_LogRelDetails Argument list for LogRel or similar that describes
242	* the operation in greater detail.
243	*
244	* @sa VMSVGA3D_GET_GL_ERROR, VMSVGA3D_GL_IS_SUCCESS
245	*/
246	#ifdef VBOX_STRICT
247	# define VMSVGA3D_GL_COMPLAIN(a_pState, a_pContext, a_LogRelDetails) \
248	do { \
249	AssertMsg((a_pState)->idActiveContext == (a_pContext)->id, \
250	("idActiveContext=%#x id=%#x\n", (a_pState)->idActiveContext, (a_pContext)->id)); \
251	RTAssertMsg2Weak a_LogRelDetails; \
252	GLenum iNextError; \
253	while ((iNextError = glGetError()) != GL_NO_ERROR) \
254	RTAssertMsg2Weak("next error: %#x\n", iNextError); \
255	AssertMsgFailed(("first error: %#x (idActiveContext=%#x)\n", (a_pContext)->lastError, (a_pContext)->id)); \
256	} while (0)
257	#else
258	# define VMSVGA3D_GL_COMPLAIN(a_pState, a_pContext, a_LogRelDetails) \
259	do { \
260	LogRelMax(32, ("VMSVGA3d: OpenGL error %#x (idActiveContext=%#x) on line %u ", (a_pContext)->lastError, (a_pContext)->id)); \
261	GLenum iNextError; \
262	while ((iNextError = glGetError()) != GL_NO_ERROR) \
263	LogRelMax(32, (" - also error %#x ", iNextError)); \
264	LogRelMax(32, a_LogRelDetails); \
265	} while (0)
266	#endif
267
268	/** @def VMSVGA3D_GL_GET_AND_COMPLAIN
269	* Combination of VMSVGA3D_GET_GL_ERROR and VMSVGA3D_GL_COMPLAIN, assuming that
270	* there is a pending error.
271	*
272	* @param a_pState The 3D state structure.
273	* @param a_pContext The context that holds the first error.
274	*
275	* @sa VMSVGA3D_GET_GL_ERROR, VMSVGA3D_GL_IS_SUCCESS, VMSVGA3D_GL_COMPLAIN
276	*/
277	#define VMSVGA3D_GL_GET_AND_COMPLAIN(a_pState, a_pContext, a_LogRelDetails) \
278	do { \
279	VMSVGA3D_GET_GL_ERROR(a_pContext); \
280	VMSVGA3D_GL_COMPLAIN(a_pState, a_pContext, a_LogRelDetails); \
281	} while (0)
282
283
284	/** @def VMSVGA3D_CHECK_LAST_ERROR
285	* Checks that the last OpenGL error code indicates success.
286	*
287	* Will assert and return VERR_INTERNAL_ERROR in strict builds, in other
288	* builds it will do nothing and is a NOOP.
289	*
290	* @parm pState The VMSVGA3d state.
291	* @parm pContext The context.
292	*
293	* @todo Replace with proper error handling, it's crazy to return
294	* VERR_INTERNAL_ERROR in strict builds and just barge on ahead in
295	* release builds.
296	*/
297	#ifdef VBOX_STRICT
298	# define VMSVGA3D_CHECK_LAST_ERROR(pState, pContext) do { \
299	Assert((pState)->idActiveContext == (pContext)->id); \
300	(pContext)->lastError = glGetError(); \
301	AssertMsgReturn((pContext)->lastError == GL_NO_ERROR, \
302	("%s (%d): last error 0x%x\n", __FUNCTION__, __LINE__, (pContext)->lastError), \
303	VERR_INTERNAL_ERROR); \
304	} while (0)
305	#else
306	# define VMSVGA3D_CHECK_LAST_ERROR(pState, pContext) do { } while (0)
307	#endif
308
309	/** @def VMSVGA3D_CHECK_LAST_ERROR_WARN
310	* Checks that the last OpenGL error code indicates success.
311	*
312	* Will assert in strict builds, otherwise it's a NOOP.
313	*
314	* @parm pState The VMSVGA3d state.
315	* @parm pContext The new context.
316	*/
317	#ifdef VBOX_STRICT
318	# define VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext) do { \
319	Assert((pState)->idActiveContext == (pContext)->id); \
320	(pContext)->lastError = glGetError(); \
321	AssertMsg((pContext)->lastError == GL_NO_ERROR, ("%s (%d): last error 0x%x\n", __FUNCTION__, __LINE__, (pContext)->lastError)); \
322	} while (0)
323	#else
324	# define VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext) do { } while (0)
325	#endif
326
327
328	/**
329	* Macro for doing something and then checking for errors during initialization.
330	* Uses AssertLogRelMsg.
331	*/
332	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
333	do \
334	{ \
335	a_Expr; \
336	GLenum iGlError = glGetError(); \
337	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
338	} while (0)
339
340	/**
341	* Macro for doing something and then checking for errors during initialization,
342	* doing the same in the other context when enabled.
343	*
344	* This will try both profiles in dual profile builds. Caller must be in the
345	* default context.
346	*
347	* Uses AssertLogRelMsg to indicate trouble.
348	*/
349	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
350	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) \
351	do \
352	{ \
353	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
354	a_Expr; \
355	GLenum iGlError = glGetError(); \
356	if (iGlError != GL_NO_ERROR) \
357	{ \
358	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pOtherCtx); \
359	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
360	a_Expr; \
361	GLenum iGlError2 = glGetError(); \
362	AssertLogRelMsg(iGlError2 == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x / %#x\n", #a_Expr, iGlError, iGlError2)); \
363	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pContext); \
364	} \
365	} while (0)
366	#else
367	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) VMSVGA3D_INIT_CHECKED(a_Expr)
368	#endif
369
370
371	/*******************************************************************************
372	* Structures, Typedefs and Globals. *
373	*******************************************************************************/
374	typedef struct
375	{
376	SVGA3dSize size;
377	uint32_t cbSurface;
378	uint32_t cbSurfacePitch;
379	void *pSurfaceData;
380	bool fDirty;
381	} VMSVGA3DMIPMAPLEVEL, *PVMSVGA3DMIPMAPLEVEL;
382
383	/**
384	* SSM descriptor table for the VMSVGA3DMIPMAPLEVEL structure.
385	*/
386	static SSMFIELD const g_aVMSVGA3DMIPMAPLEVELFields[] =
387	{
388	SSMFIELD_ENTRY( VMSVGA3DMIPMAPLEVEL, size),
389	SSMFIELD_ENTRY( VMSVGA3DMIPMAPLEVEL, cbSurface),
390	SSMFIELD_ENTRY( VMSVGA3DMIPMAPLEVEL, cbSurfacePitch),
391	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DMIPMAPLEVEL, pSurfaceData),
392	SSMFIELD_ENTRY_IGNORE( VMSVGA3DMIPMAPLEVEL, fDirty),
393	SSMFIELD_ENTRY_TERM()
394	};
395
396	typedef struct
397	{
398	uint32_t id;
399	uint32_t idAssociatedContext;
400	uint32_t flags;
401	SVGA3dSurfaceFormat format;
402	GLint internalFormatGL;
403	GLint formatGL;
404	GLint typeGL;
405	union
406	{
407	GLuint texture;
408	GLuint buffer;
409	GLuint renderbuffer;
410	} oglId;
411	SVGA3dSurfaceFace faces[SVGA3D_MAX_SURFACE_FACES];
412	uint32_t cFaces;
413	PVMSVGA3DMIPMAPLEVEL pMipmapLevels;
414	uint32_t multiSampleCount;
415	SVGA3dTextureFilter autogenFilter;
416	uint32_t cbBlock; /* block/pixel size in bytes */
417	/* Dirty state; surface was manually updated. */
418	bool fDirty;
419	} VMSVGA3DSURFACE, *PVMSVGA3DSURFACE;
420
421	/**
422	* SSM descriptor table for the VMSVGA3DSURFACE structure.
423	*/
424	static SSMFIELD const g_aVMSVGA3DSURFACEFields[] =
425	{
426	SSMFIELD_ENTRY( VMSVGA3DSURFACE, id),
427	SSMFIELD_ENTRY( VMSVGA3DSURFACE, idAssociatedContext),
428	SSMFIELD_ENTRY( VMSVGA3DSURFACE, flags),
429	SSMFIELD_ENTRY( VMSVGA3DSURFACE, format),
430	SSMFIELD_ENTRY( VMSVGA3DSURFACE, internalFormatGL),
431	SSMFIELD_ENTRY( VMSVGA3DSURFACE, formatGL),
432	SSMFIELD_ENTRY( VMSVGA3DSURFACE, typeGL),
433	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSURFACE, id),
434	SSMFIELD_ENTRY( VMSVGA3DSURFACE, faces),
435	SSMFIELD_ENTRY( VMSVGA3DSURFACE, cFaces),
436	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSURFACE, pMipmapLevels),
437	SSMFIELD_ENTRY( VMSVGA3DSURFACE, multiSampleCount),
438	SSMFIELD_ENTRY( VMSVGA3DSURFACE, autogenFilter),
439	SSMFIELD_ENTRY( VMSVGA3DSURFACE, cbBlock),
440	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSURFACE, fDirty),
441	SSMFIELD_ENTRY_TERM()
442	};
443
444	typedef struct
445	{
446	uint32_t id;
447	uint32_t cid;
448	SVGA3dShaderType type;
449	uint32_t cbData;
450	void *pShaderProgram;
451	union
452	{
453	void *pVertexShader;
454	void *pPixelShader;
455	} u;
456	} VMSVGA3DSHADER, *PVMSVGA3DSHADER;
457
458	/**
459	* SSM descriptor table for the VMSVGA3DSHADER structure.
460	*/
461	static SSMFIELD const g_aVMSVGA3DSHADERFields[] =
462	{
463	SSMFIELD_ENTRY( VMSVGA3DSHADER, id),
464	SSMFIELD_ENTRY( VMSVGA3DSHADER, cid),
465	SSMFIELD_ENTRY( VMSVGA3DSHADER, type),
466	SSMFIELD_ENTRY( VMSVGA3DSHADER, cbData),
467	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSHADER, pShaderProgram),
468	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSHADER, u.pVertexShader),
469	SSMFIELD_ENTRY_TERM()
470	};
471
472	typedef struct
473	{
474	bool fValid;
475	float matrix[16];
476	} VMSVGATRANSFORMSTATE, *PVMSVGATRANSFORMSTATE;
477
478	typedef struct
479	{
480	bool fValid;
481	SVGA3dMaterial material;
482	} VMSVGAMATERIALSTATE, *PVMSVGAMATERIALSTATE;
483
484	typedef struct
485	{
486	bool fValid;
487	float plane[4];
488	} VMSVGACLIPPLANESTATE, *PVMSVGACLIPPLANESTATE;
489
490	typedef struct
491	{
492	bool fEnabled;
493	bool fValidData;
494	SVGA3dLightData data;
495	} VMSVGALIGHTSTATE, *PVMSVGALIGHTSTATE;
496
497	typedef struct
498	{
499	bool fValid;
500	SVGA3dShaderConstType ctype;
501	uint32_t value[4];
502	} VMSVGASHADERCONST, *PVMSVGASHADERCONST;
503
504	/**
505	* SSM descriptor table for the VMSVGASHADERCONST structure.
506	*/
507	static SSMFIELD const g_aVMSVGASHADERCONSTFields[] =
508	{
509	SSMFIELD_ENTRY( VMSVGASHADERCONST, fValid),
510	SSMFIELD_ENTRY( VMSVGASHADERCONST, ctype),
511	SSMFIELD_ENTRY( VMSVGASHADERCONST, value),
512	SSMFIELD_ENTRY_TERM()
513	};
514
515	#define VMSVGA3D_UPDATE_SCISSORRECT RT_BIT(0)
516	#define VMSVGA3D_UPDATE_ZRANGE RT_BIT(1)
517	#define VMSVGA3D_UPDATE_VIEWPORT RT_BIT(2)
518	#define VMSVGA3D_UPDATE_VERTEXSHADER RT_BIT(3)
519	#define VMSVGA3D_UPDATE_PIXELSHADER RT_BIT(4)
520	#define VMSVGA3D_UPDATE_TRANSFORM RT_BIT(5)
521	#define VMSVGA3D_UPDATE_MATERIAL RT_BIT(6)
522
523	typedef struct
524	{
525	uint32_t id;
526	#ifdef RT_OS_WINDOWS
527	/* Device context of the context window. */
528	HDC hdc;
529	/* OpenGL rendering context handle. */
530	HGLRC hglrc;
531	/* Device context window handle. */
532	HWND hwnd;
533	#elif defined(RT_OS_DARWIN)
534	/* OpenGL rendering context */
535	NativeNSOpenGLContextRef cocoaContext;
536	NativeNSViewRef cocoaView;
537	bool fOtherProfile;
538	#else
539	/** XGL rendering context handle */
540	GLXContext glxContext;
541	/** Device context window handle */
542	Window window;
543	/** flag whether the window is mapped (=visible) */
544	bool fMapped;
545	#endif
546	/* Framebuffer object associated with this context. */
547	GLuint idFramebuffer;
548	/* Read and draw framebuffer objects for various operations. */
549	GLuint idReadFramebuffer;
550	GLuint idDrawFramebuffer;
551	/* Last GL error recorded. */
552	GLenum lastError;
553
554	/* Current active render target (if any) */
555	uint32_t sidRenderTarget;
556	/* Current selected texture surfaces (if any) */
557	uint32_t aSidActiveTexture[SVGA3D_MAX_TEXTURE_STAGE];
558	/* Per context pixel and vertex shaders. */
559	uint32_t cPixelShaders;
560	PVMSVGA3DSHADER paPixelShader;
561	uint32_t cVertexShaders;
562	PVMSVGA3DSHADER paVertexShader;
563	void *pShaderContext;
564	/* Keep track of the internal state to be able to recreate the context properly (save/restore, window resize). */
565	struct
566	{
567	uint32_t u32UpdateFlags;
568
569	SVGA3dRenderState aRenderState[SVGA3D_RS_MAX];
570	SVGA3dTextureState aTextureState[SVGA3D_MAX_TEXTURE_STAGE][SVGA3D_TS_MAX];
571	VMSVGATRANSFORMSTATE aTransformState[SVGA3D_TRANSFORM_MAX];
572	VMSVGAMATERIALSTATE aMaterial[SVGA3D_FACE_MAX];
573	VMSVGACLIPPLANESTATE aClipPlane[SVGA3D_CLIPPLANE_MAX];
574	VMSVGALIGHTSTATE aLightData[SVGA3D_MAX_LIGHTS];
575
576	uint32_t aRenderTargets[SVGA3D_RT_MAX];
577	SVGA3dRect RectScissor;
578	SVGA3dRect RectViewPort;
579	SVGA3dZRange zRange;
580	uint32_t shidPixel;
581	uint32_t shidVertex;
582
583	uint32_t cPixelShaderConst;
584	PVMSVGASHADERCONST paPixelShaderConst;
585	uint32_t cVertexShaderConst;
586	PVMSVGASHADERCONST paVertexShaderConst;
587	} state;
588	} VMSVGA3DCONTEXT, *PVMSVGA3DCONTEXT;
589
590	/**
591	* SSM descriptor table for the VMSVGA3DCONTEXT structure.
592	*/
593	static SSMFIELD const g_aVMSVGA3DCONTEXTFields[] =
594	{
595	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, id),
596	#ifdef RT_OS_WINDOWS
597	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, hdc),
598	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, hglrc),
599	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, hwnd),
600	#endif
601
602	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, idFramebuffer),
603	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, idReadFramebuffer),
604	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, idDrawFramebuffer),
605	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, lastError),
606
607	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, sidRenderTarget),
608	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, aSidActiveTexture),
609	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, cPixelShaders),
610	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DCONTEXT, paPixelShader),
611	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, cVertexShaders),
612	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DCONTEXT, paVertexShader),
613	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DCONTEXT, pShaderContext),
614	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.u32UpdateFlags),
615
616	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aRenderState),
617	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aTextureState),
618	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aTransformState),
619	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aMaterial),
620	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aClipPlane),
621	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aLightData),
622
623	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aRenderTargets),
624	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.RectScissor),
625	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.RectViewPort),
626	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.zRange),
627	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.shidPixel),
628	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.shidVertex),
629	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.cPixelShaderConst),
630	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DCONTEXT, state.paPixelShaderConst),
631	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.cVertexShaderConst),
632	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DCONTEXT, state.paVertexShaderConst),
633	SSMFIELD_ENTRY_TERM()
634	};
635
636	/**
637	* VMSVGA3d state data.
638	*
639	* Allocated on the heap and pointed to by VMSVGAState::p3dState.
640	*/
641	typedef struct VMSVGA3DSTATE
642	{
643	#ifdef RT_OS_WINDOWS
644	/** Window Thread. */
645	R3PTRTYPE(RTTHREAD) pWindowThread;
646	DWORD idWindowThread;
647	HMODULE hInstance;
648	/** Window request semaphore. */
649	RTSEMEVENT WndRequestSem;
650	#elif defined(RT_OS_LINUX)
651	/* The X display */
652	Display *display;
653	R3PTRTYPE(RTTHREAD) pWindowThread;
654	bool bTerminate;
655	#endif
656
657	float fGLVersion;
658	/* Current active context. */
659	uint32_t idActiveContext;
660
661	struct
662	{
663	PFNGLISRENDERBUFFERPROC glIsRenderbuffer;
664	PFNGLBINDRENDERBUFFERPROC glBindRenderbuffer;
665	PFNGLDELETERENDERBUFFERSPROC glDeleteRenderbuffers;
666	PFNGLGENRENDERBUFFERSPROC glGenRenderbuffers;
667	PFNGLRENDERBUFFERSTORAGEPROC glRenderbufferStorage;
668	PFNGLGETRENDERBUFFERPARAMETERIVPROC glGetRenderbufferParameteriv;
669	PFNGLISFRAMEBUFFERPROC glIsFramebuffer;
670	PFNGLBINDFRAMEBUFFERPROC glBindFramebuffer;
671	PFNGLDELETEFRAMEBUFFERSPROC glDeleteFramebuffers;
672	PFNGLGENFRAMEBUFFERSPROC glGenFramebuffers;
673	PFNGLCHECKFRAMEBUFFERSTATUSPROC glCheckFramebufferStatus;
674	PFNGLFRAMEBUFFERTEXTURE1DPROC glFramebufferTexture1D;
675	PFNGLFRAMEBUFFERTEXTURE2DPROC glFramebufferTexture2D;
676	PFNGLFRAMEBUFFERTEXTURE3DPROC glFramebufferTexture3D;
677	PFNGLFRAMEBUFFERRENDERBUFFERPROC glFramebufferRenderbuffer;
678	PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC glGetFramebufferAttachmentParameteriv;
679	PFNGLGENERATEMIPMAPPROC glGenerateMipmap;
680	PFNGLBLITFRAMEBUFFERPROC glBlitFramebuffer;
681	PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC glRenderbufferStorageMultisample;
682	PFNGLFRAMEBUFFERTEXTURELAYERPROC glFramebufferTextureLayer;
683	PFNGLPOINTPARAMETERFPROC glPointParameterf;
684	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
685	PFNGLBLENDCOLORPROC glBlendColor;
686	PFNGLBLENDEQUATIONPROC glBlendEquation;
687	#endif
688	PFNGLBLENDEQUATIONSEPARATEPROC glBlendEquationSeparate;
689	PFNGLBLENDFUNCSEPARATEPROC glBlendFuncSeparate;
690	PFNGLSTENCILOPSEPARATEPROC glStencilOpSeparate;
691	PFNGLSTENCILFUNCSEPARATEPROC glStencilFuncSeparate;
692	PFNGLBINDBUFFERPROC glBindBuffer;
693	PFNGLDELETEBUFFERSPROC glDeleteBuffers;
694	PFNGLGENBUFFERSPROC glGenBuffers;
695	PFNGLBUFFERDATAPROC glBufferData;
696	PFNGLMAPBUFFERPROC glMapBuffer;
697	PFNGLUNMAPBUFFERPROC glUnmapBuffer;
698	PFNGLENABLEVERTEXATTRIBARRAYPROC glEnableVertexAttribArray;
699	PFNGLDISABLEVERTEXATTRIBARRAYPROC glDisableVertexAttribArray;
700	PFNGLVERTEXATTRIBPOINTERPROC glVertexAttribPointer;
701	PFNGLFOGCOORDPOINTERPROC glFogCoordPointer;
702	PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC glDrawElementsInstancedBaseVertex;
703	PFNGLDRAWELEMENTSBASEVERTEXPROC glDrawElementsBaseVertex;
704	PFNGLACTIVETEXTUREPROC glActiveTexture;
705	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
706	PFNGLCLIENTACTIVETEXTUREPROC glClientActiveTexture;
707	#endif
708	PFNGLGETPROGRAMIVARBPROC glGetProgramivARB;
709	PFNGLPROVOKINGVERTEXPROC glProvokingVertex;
710	bool fEXT_stencil_two_side;
711	} ext;
712
713	struct
714	{
715	GLint maxActiveLights;
716	GLint maxTextureBufferSize;
717	GLint maxTextures;
718	GLint maxClipDistances;
719	GLint maxColorAttachments;
720	GLint maxRectangleTextureSize;
721	GLint maxTextureAnisotropy;
722	GLint maxVertexShaderInstructions;
723	GLint maxFragmentShaderInstructions;
724	GLint maxVertexShaderTemps;
725	GLint maxFragmentShaderTemps;
726	GLfloat flPointSize[2];
727	SVGA3dPixelShaderVersion fragmentShaderVersion;
728	SVGA3dVertexShaderVersion vertexShaderVersion;
729	bool fS3TCSupported;
730	} caps;
731
732	uint32_t cContexts;
733	PVMSVGA3DCONTEXT paContext;
734	uint32_t cSurfaces;
735	PVMSVGA3DSURFACE paSurface;
736	#ifdef DEBUG_GFX_WINDOW_TEST_CONTEXT
737	uint32_t idTestContext;
738	#endif
739	/** The GL_EXTENSIONS value (space padded) for the default OpenGL profile.
740	* Free with RTStrFree. */
741	R3PTRTYPE(char *) pszExtensions;
742
743	/** The GL_EXTENSIONS value (space padded) for the other OpenGL profile.
744	* Free with RTStrFree.
745	*
746	* This is used to detect shader model version since some implementations
747	* (darwin) hides extensions that have made it into core and probably a
748	* bunch of others when using a OpenGL core profile instead of a legacy one */
749	R3PTRTYPE(char *) pszOtherExtensions;
750	/** The version of the other GL profile. */
751	float fOtherGLVersion;
752
753	/** Shader talk back interface. */
754	VBOXVMSVGASHADERIF ShaderIf;
755	} VMSVGA3DSTATE;
756	/** Pointer to the VMSVGA3d state. */
757	typedef VMSVGA3DSTATE *PVMSVGA3DSTATE;
758
759	/**
760	* SSM descriptor table for the VMSVGA3DSTATE structure.
761	*/
762	static SSMFIELD const g_aVMSVGA3DSTATEFields[] =
763	{
764	#ifdef RT_OS_WINDOWS
765	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, pWindowThread),
766	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, idWindowThread),
767	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, hInstance),
768	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, WndRequestSem),
769	#elif defined(RT_OS_LINUX)
770	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, display),
771	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, pWindowThread),
772	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, bTerminate),
773	#endif
774	SSMFIELD_ENTRY( VMSVGA3DSTATE, fGLVersion),
775	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, idActiveContext),
776
777	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, ext),
778	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, caps),
779
780	SSMFIELD_ENTRY( VMSVGA3DSTATE, cContexts),
781	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, paContext),
782	SSMFIELD_ENTRY( VMSVGA3DSTATE, cSurfaces),
783	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, paSurface),
784	SSMFIELD_ENTRY_TERM()
785	};
786
787
788	/* Define the default light parameters as specified by MSDN. */
789	/* @todo move out; fetched from Wine */
790	const SVGA3dLightData vmsvga3d_default_light =
791	{
792	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
793	false, /* inWorldSpace */
794	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
795	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
796	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
797	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
798	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
799	0.0f, /* range */
800	0.0f, /* falloff */
801	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
802	0.0f, /* theta */
803	0.0f /* phi */
804	};
805
806	RT_C_DECLS_BEGIN
807	static int vmsvga3dCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext, PVMSVGA3DSURFACE pSurface);
808	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
809	RT_C_DECLS_END
810
811
812	/**
813	* Checks if the given OpenGL extension is supported.
814	*
815	* @returns true if supported, false if not.
816	* @param pState The VMSVGA3d state.
817	* @param fActualGLVersion The actual OpenGL version we're working against.
818	* @param fMinGLVersion The OpenGL version that introduced this feature
819	* into the core.
820	* @param pszWantedExtension The name of the OpenGL extension we want padded
821	* with one space at each end.
822	* @remarks Init time only.
823	*/
824	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float fMinGLVersion, const char *pszWantedExtension)
825	{
826	/* check padding. */
827	Assert(pszWantedExtension[0] == ' ');
828	Assert(pszWantedExtension[1] != ' ');
829	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
830
831	/* Look it up. */
832	bool fRet = false;
833	if (strstr(pState->pszExtensions, pszWantedExtension))
834	fRet = true;
835
836	/* Temporarily. Later start if (fMinGLVersion != 0.0 && fActualGLVersion >= fMinGLVersion) return true; */
837	#ifdef RT_OS_DARWIN
838	AssertMsg( fMinGLVersion == 0.0
839	\|\| fRet == (pState->fGLVersion >= fMinGLVersion)
840	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
841	("%s actual:%d min:%d fRet=%d\n",
842	pszWantedExtension, (int)(pState->fGLVersion * 10), (int)(fMinGLVersion * 10), fRet));
843	#else
844	AssertMsg(fMinGLVersion == 0.0 \|\| fRet == (pState->fGLVersion >= fMinGLVersion),
845	("%s actual:%d min:%d fRet=%d\n",
846	pszWantedExtension, (int)(pState->fGLVersion * 10), (int)(fMinGLVersion * 10), fRet));
847	#endif
848	return fRet;
849	}
850
851
852	/**
853	* Outputs GL_EXTENSIONS list to the release log.
854	*/
855	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
856	{
857	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
858	bool fBuffered = RTLogRelSetBuffering(true);
859
860	/*
861	* Determin the column widths first.
862	*/
863	size_t acchWidths[4] = { 1, 1, 1, 1 };
864	uint32_t i;
865	const char *psz = pszExtensions;
866	for (i = 0; ; i++)
867	{
868	while (*psz == ' ')
869	psz++;
870	if (!*psz)
871	break;
872
873	const char *pszEnd = strchr(psz, ' ');
874	AssertBreak(pszEnd);
875	size_t cch = pszEnd - psz;
876
877	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
878	if (acchWidths[iColumn] < cch)
879	acchWidths[iColumn] = cch;
880
881	psz = pszEnd;
882	}
883
884	/*
885	* Output it.
886	*/
887	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
888	psz = pszExtensions;
889	for (i = 0; ; i++)
890	{
891	while (*psz == ' ')
892	psz++;
893	if (!*psz)
894	break;
895
896	const char *pszEnd = strchr(psz, ' ');
897	AssertBreak(pszEnd);
898	size_t cch = pszEnd - psz;
899
900	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
901	if (iColumn == 0)
902	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
903	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
904	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
905	else
906	LogRel((" %.*s", cch, psz));
907
908	psz = pszEnd;
909	}
910
911	RTLogRelSetBuffering(fBuffered);
912	LogRel(("\n"));
913	}
914
915	/**
916	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
917	* @a ppszExtensions.
918	*
919	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
920	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
921	* @param fGLProfileVersion The OpenGL profile version.
922	*/
923	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
924	{
925	int rc;
926	*ppszExtensions = NULL;
927
928	/*
929	* Try the old glGetString interface first.
930	*/
931	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
932	if (pszExtensions)
933	{
934	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
935	AssertLogRelRCReturn(rc, rc);
936	}
937	else
938	{
939	/*
940	* The new interface where each extension string is retrieved separately.
941	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
942	* the above GL_EXTENSIONS error lingers on darwin. sucks.
943	*/
944	#ifndef GL_NUM_EXTENSIONS
945	# define GL_NUM_EXTENSIONS 0x821D
946	#endif
947	GLint cExtensions = 1024;
948	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
949	Assert(cExtensions != 1024);
950
951	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
952	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
953
954	rc = RTStrAAppend(ppszExtensions, " ");
955	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
956	{
957	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
958	if (pszExt)
959	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
960	}
961	AssertRCReturn(rc, rc);
962	}
963
964	#if 1
965	/*
966	* Add extensions promoted into the core OpenGL profile.
967	*/
968	static const struct
969	{
970	float fGLVersion;
971	const char *pszzExtensions;
972	} s_aPromotedExtensions[] =
973	{
974	{
975	1.1f,
976	" GL_EXT_vertex_array \0"
977	" GL_EXT_polygon_offset \0"
978	" GL_EXT_blend_logic_op \0"
979	" GL_EXT_texture \0"
980	" GL_EXT_copy_texture \0"
981	" GL_EXT_subtexture \0"
982	" GL_EXT_texture_object \0"
983	" GL_ARB_framebuffer_object \0"
984	" GL_ARB_map_buffer_range \0"
985	" GL_ARB_vertex_array_object \0"
986	"\0"
987	},
988	{
989	1.2f,
990	" EXT_texture3D \0"
991	" EXT_bgra \0"
992	" EXT_packed_pixels \0"
993	" EXT_rescale_normal \0"
994	" EXT_separate_specular_color \0"
995	" SGIS_texture_edge_clamp \0"
996	" SGIS_texture_lod \0"
997	" EXT_draw_range_elements \0"
998	"\0"
999	},
1000	{
1001	1.3f,
1002	" GL_ARB_texture_compression \0"
1003	" GL_ARB_texture_cube_map \0"
1004	" GL_ARB_multisample \0"
1005	" GL_ARB_multitexture \0"
1006	" GL_ARB_texture_env_add \0"
1007	" GL_ARB_texture_env_combine \0"
1008	" GL_ARB_texture_env_dot3 \0"
1009	" GL_ARB_texture_border_clamp \0"
1010	" GL_ARB_transpose_matrix \0"
1011	"\0"
1012	},
1013	{
1014	1.5f,
1015	" GL_SGIS_generate_mipmap \0"
1016	/" GL_NV_blend_equare \0"/
1017	" GL_ARB_depth_texture \0"
1018	" GL_ARB_shadow \0"
1019	" GL_EXT_fog_coord \0"
1020	" GL_EXT_multi_draw_arrays \0"
1021	" GL_ARB_point_parameters \0"
1022	" GL_EXT_secondary_color \0"
1023	" GL_EXT_blend_func_separate \0"
1024	" GL_EXT_stencil_wrap \0"
1025	" GL_ARB_texture_env_crossbar \0"
1026	" GL_EXT_texture_lod_bias \0"
1027	" GL_ARB_texture_mirrored_repeat \0"
1028	" GL_ARB_window_pos \0"
1029	"\0"
1030	},
1031	{
1032	1.6f,
1033	" GL_ARB_vertex_buffer_object \0"
1034	" GL_ARB_occlusion_query \0"
1035	" GL_EXT_shadow_funcs \0"
1036	},
1037	{
1038	2.0f,
1039	" GL_ARB_shader_objects \0" /??/
1040	" GL_ARB_vertex_shader \0" /??/
1041	" GL_ARB_fragment_shader \0" /??/
1042	" GL_ARB_shading_language_100 \0" /??/
1043	" GL_ARB_draw_buffers \0"
1044	" GL_ARB_texture_non_power_of_two \0"
1045	" GL_ARB_point_sprite \0"
1046	" GL_ATI_separate_stencil \0"
1047	" GL_EXT_stencil_two_side \0"
1048	"\0"
1049	},
1050	{
1051	2.1f,
1052	" GL_ARB_pixel_buffer_object \0"
1053	" GL_EXT_texture_sRGB \0"
1054	"\0"
1055	},
1056	{
1057	3.0f,
1058	" GL_ARB_framebuffer_object \0"
1059	" GL_ARB_map_buffer_range \0"
1060	" GL_ARB_vertex_array_object \0"
1061	"\0"
1062	},
1063	{
1064	3.1f,
1065	" GL_ARB_copy_buffer \0"
1066	" GL_ARB_uniform_buffer_object \0"
1067	"\0"
1068	},
1069	{
1070	3.2f,
1071	" GL_ARB_vertex_array_bgra \0"
1072	" GL_ARB_draw_elements_base_vertex \0"
1073	" GL_ARB_fragment_coord_conventions \0"
1074	" GL_ARB_provoking_vertex \0"
1075	" GL_ARB_seamless_cube_map \0"
1076	" GL_ARB_texture_multisample \0"
1077	" GL_ARB_depth_clamp \0"
1078	" GL_ARB_sync \0"
1079	" GL_ARB_geometry_shader4 \0" /??/
1080	"\0"
1081	},
1082	{
1083	3.3f,
1084	" GL_ARB_blend_func_extended \0"
1085	" GL_ARB_sampler_objects \0"
1086	" GL_ARB_explicit_attrib_location \0"
1087	" GL_ARB_occlusion_query2 \0"
1088	" GL_ARB_shader_bit_encoding \0"
1089	" GL_ARB_texture_rgb10_a2ui \0"
1090	" GL_ARB_texture_swizzle \0"
1091	" GL_ARB_timer_query \0"
1092	" GL_ARB_vertex_type_2_10_10_10_rev \0"
1093	"\0"
1094	},
1095	{
1096	4.0f,
1097	" GL_ARB_texture_query_lod \0"
1098	" GL_ARB_draw_indirect \0"
1099	" GL_ARB_gpu_shader5 \0"
1100	" GL_ARB_gpu_shader_fp64 \0"
1101	" GL_ARB_shader_subroutine \0"
1102	" GL_ARB_tessellation_shader \0"
1103	" GL_ARB_texture_buffer_object_rgb32 \0"
1104	" GL_ARB_texture_cube_map_array \0"
1105	" GL_ARB_texture_gather \0"
1106	" GL_ARB_transform_feedback2 \0"
1107	" GL_ARB_transform_feedback3 \0"
1108	"\0"
1109	},
1110	{
1111	4.1f,
1112	" GL_ARB_ES2_compatibility \0"
1113	" GL_ARB_get_program_binary \0"
1114	" GL_ARB_separate_shader_objects \0"
1115	" GL_ARB_shader_precision \0"
1116	" GL_ARB_vertex_attrib_64bit \0"
1117	" GL_ARB_viewport_array \0"
1118	"\0"
1119	}
1120	};
1121
1122	uint32_t cPromoted = 0;
1123	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
1124	{
1125	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
1126	while (*pszExt)
1127	{
1128	size_t cchExt = strlen(pszExt);
1129	Assert(cchExt > 3);
1130	Assert(pszExt[0] == ' ');
1131	Assert(pszExt[1] != ' ');
1132	Assert(pszExt[cchExt - 2] != ' ');
1133	Assert(pszExt[cchExt - 1] == ' ');
1134
1135	if (strstr(*ppszExtensions, pszExt) == NULL)
1136	{
1137	if (cPromoted++ == 0)
1138	{
1139	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
1140	AssertRCReturn(rc, rc);
1141	}
1142
1143	rc = RTStrAAppend(ppszExtensions, pszExt);
1144	AssertRCReturn(rc, rc);
1145	}
1146
1147	pszExt = strchr(pszExt, '\0') + 1;
1148	}
1149	}
1150	#endif
1151
1152	return VINF_SUCCESS;
1153	}
1154
1155	/**
1156	* @interface_method_impl{VBOXVMSVGASHADERIF, pfnSwitchInitProfile}
1157	*/
1158	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
1159	{
1160	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1161	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
1162	VMSVGA3D_SET_CURRENT_CONTEXT(pState, &pState->paContext[fOtherProfile ? 2 : 1]);
1163	#else
1164	NOREF(pThis);
1165	NOREF(fOtherProfile);
1166	#endif
1167	}
1168
1169
1170	/**
1171	* @interface_method_impl{VBOXVMSVGASHADERIF, pfnGetNextExtension}
1172	*/
1173	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
1174	char *pszBuf, size_t cbBuf, bool fOtherProfile)
1175	{
1176	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
1177	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
1178	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
1179	while (*pszCur == ' ')
1180	pszCur++;
1181	if (!*pszCur)
1182	return false;
1183
1184	const char *pszEnd = strchr(pszCur, ' ');
1185	AssertReturn(pszEnd, false);
1186	size_t cch = pszEnd - pszCur;
1187	if (cch < cbBuf)
1188	{
1189	memcpy(pszBuf, pszCur, cch);
1190	pszBuf[cch] = '\0';
1191	}
1192	else if (cbBuf > 0)
1193	{
1194	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
1195	pszBuf[cbBuf - 1] = '\0';
1196	}
1197
1198	ppvEnumCtx = (void )pszEnd;
1199	return true;
1200	}
1201
1202
1203	/**
1204	* Initializes the VMSVGA3D state during VGA device construction.
1205	*
1206	* Failure are generally not fatal, 3D support will just be disabled.
1207	*
1208	* @returns VBox status code.
1209	* @param pThis The VGA device state where svga.p3dState will be modified.
1210	*/
1211	int vmsvga3dInit(PVGASTATE pThis)
1212	{
1213	AssertCompile(GL_TRUE == 1);
1214	AssertCompile(GL_FALSE == 0);
1215
1216	/*
1217	* Load and resolve imports from the external shared libraries.
1218	*/
1219	RTERRINFOSTATIC ErrInfo;
1220	int rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
1221	if (RT_FAILURE(rc))
1222	{
1223	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
1224	return rc;
1225	}
1226	#ifdef RT_OS_DARWIN
1227	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
1228	if (RT_FAILURE(rc))
1229	{
1230	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
1231	return rc;
1232	}
1233	#endif
1234
1235	/*
1236	* Allocate the state.
1237	*/
1238	pThis->svga.p3dState = RTMemAllocZ(sizeof(VMSVGA3DSTATE));
1239	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1240
1241	#ifdef RT_OS_WINDOWS
1242	/* Create event semaphore and async IO thread. */
1243	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
1244	rc = RTSemEventCreate(&pState->WndRequestSem);
1245	if (RT_SUCCESS(rc))
1246	{
1247	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
1248	"VMSVGA3DWND");
1249	if (RT_SUCCESS(rc))
1250	return VINF_SUCCESS;
1251
1252	/* bail out. */
1253	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
1254	RTSemEventDestroy(pState->WndRequestSem);
1255	}
1256	else
1257	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
1258	RTMemFree(pThis->svga.p3dState);
1259	pThis->svga.p3dState = NULL;
1260	return rc;
1261	#else
1262	return VINF_SUCCESS;
1263	#endif
1264	}
1265
1266	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
1267	int vmsvga3dPowerOn(PVGASTATE pThis)
1268	{
1269	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
1270	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1271	PVMSVGA3DCONTEXT pContext;
1272	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1273	PVMSVGA3DCONTEXT pOtherCtx;
1274	#endif
1275	int rc;
1276
1277	if (pState->fGLVersion != 0.0)
1278	return VINF_SUCCESS; /* already initialized (load state) */
1279
1280	/*
1281	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
1282	*/
1283	rc = vmsvga3dContextDefine(pThis, 1, false /fOtherProfile/);
1284	AssertRCReturn(rc, rc);
1285
1286	pContext = &pState->paContext[1];
1287	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1288
1289	LogRel(("VMSVGA3d: OpenGL version: %s\n"
1290	"VMSVGA3d: OpenGL Vendor: %s\n"
1291	"VMSVGA3d: OpenGL Renderer: %s\n"
1292	"VMSVGA3d: OpenGL shader language version: %s\n",
1293	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
1294	glGetString(GL_SHADING_LANGUAGE_VERSION)));
1295
1296	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
1297	AssertRCReturn(rc, rc);
1298	vmsvga3dLogRelExtensions("", pState->pszExtensions);
1299
1300	pState->fGLVersion = atof((const char *)glGetString(GL_VERSION));
1301
1302
1303	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1304	/*
1305	* Get the extension list for the alternative profile so we can better
1306	* figure out the shader model and stuff.
1307	*/
1308	rc = vmsvga3dContextDefine(pThis, 2, true /fOtherProfile/);
1309	AssertLogRelRCReturn(rc, rc);
1310	pContext = &pState->paContext[1]; /* Array may have been reallocated. */
1311
1312	pOtherCtx = &pState->paContext[2];
1313	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
1314
1315	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
1316	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
1317	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
1318	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
1319	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
1320	glGetString(GL_SHADING_LANGUAGE_VERSION)));
1321
1322	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
1323	AssertRCReturn(rc, rc);
1324	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
1325
1326	pState->fOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
1327
1328	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1329	#else
1330	pState->pszOtherExtensions = (char *)"";
1331	pState->fOtherGLVersion = pState->fGLVersion;
1332	#endif
1333
1334
1335	if (vmsvga3dCheckGLExtension(pState, 3.0, " GL_ARB_framebuffer_object "))
1336	{
1337	pState->ext.glIsRenderbuffer = (PFNGLISRENDERBUFFERPROC)OGLGETPROCADDRESS("glIsRenderbuffer");
1338	pState->ext.glBindRenderbuffer = (PFNGLBINDRENDERBUFFERPROC)OGLGETPROCADDRESS("glBindRenderbuffer");
1339	pState->ext.glDeleteRenderbuffers = (PFNGLDELETERENDERBUFFERSPROC)OGLGETPROCADDRESS("glDeleteRenderbuffers");
1340	pState->ext.glGenRenderbuffers = (PFNGLGENRENDERBUFFERSPROC)OGLGETPROCADDRESS("glGenRenderbuffers");
1341	pState->ext.glRenderbufferStorage = (PFNGLRENDERBUFFERSTORAGEPROC)OGLGETPROCADDRESS("glRenderbufferStorage");
1342	pState->ext.glGetRenderbufferParameteriv = (PFNGLGETRENDERBUFFERPARAMETERIVPROC)OGLGETPROCADDRESS("glGetRenderbufferParameteriv");
1343	pState->ext.glIsFramebuffer = (PFNGLISFRAMEBUFFERPROC)OGLGETPROCADDRESS("glIsFramebuffer");
1344	pState->ext.glBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBindFramebuffer");
1345	pState->ext.glDeleteFramebuffers = (PFNGLDELETEFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteFramebuffers");
1346	pState->ext.glGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glGenFramebuffers");
1347	pState->ext.glCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC)OGLGETPROCADDRESS("glCheckFramebufferStatus");
1348	pState->ext.glFramebufferTexture1D = (PFNGLFRAMEBUFFERTEXTURE1DPROC)OGLGETPROCADDRESS("glFramebufferTexture1D");
1349	pState->ext.glFramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC)OGLGETPROCADDRESS("glFramebufferTexture2D");
1350	pState->ext.glFramebufferTexture3D = (PFNGLFRAMEBUFFERTEXTURE3DPROC)OGLGETPROCADDRESS("glFramebufferTexture3D");
1351	pState->ext.glFramebufferRenderbuffer = (PFNGLFRAMEBUFFERRENDERBUFFERPROC)OGLGETPROCADDRESS("glFramebufferRenderbuffer");
1352	pState->ext.glGetFramebufferAttachmentParameteriv = (PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC)OGLGETPROCADDRESS("glGetFramebufferAttachmentParameteriv");
1353	pState->ext.glGenerateMipmap = (PFNGLGENERATEMIPMAPPROC)OGLGETPROCADDRESS("glGenerateMipmap");
1354	pState->ext.glBlitFramebuffer = (PFNGLBLITFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBlitFramebuffer");
1355	pState->ext.glRenderbufferStorageMultisample = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC)OGLGETPROCADDRESS("glRenderbufferStorageMultisample");
1356	pState->ext.glFramebufferTextureLayer = (PFNGLFRAMEBUFFERTEXTURELAYERPROC)OGLGETPROCADDRESS("glFramebufferTextureLayer");
1357	}
1358	pState->ext.glPointParameterf = (PFNGLPOINTPARAMETERFPROC)OGLGETPROCADDRESS("glPointParameterf");
1359	AssertMsgReturn(pState->ext.glPointParameterf, ("glPointParameterf missing"), VERR_NOT_IMPLEMENTED);
1360	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
1361	pState->ext.glBlendColor = (PFNGLBLENDCOLORPROC)OGLGETPROCADDRESS("glBlendColor");
1362	AssertMsgReturn(pState->ext.glBlendColor, ("glBlendColor missing"), VERR_NOT_IMPLEMENTED);
1363	pState->ext.glBlendEquation = (PFNGLBLENDEQUATIONPROC)OGLGETPROCADDRESS("glBlendEquation");
1364	AssertMsgReturn(pState->ext.glBlendEquation, ("glBlendEquation missing"), VERR_NOT_IMPLEMENTED);
1365	#endif
1366	pState->ext.glBlendEquationSeparate = (PFNGLBLENDEQUATIONSEPARATEPROC)OGLGETPROCADDRESS("glBlendEquationSeparate");
1367	AssertMsgReturn(pState->ext.glBlendEquationSeparate, ("glBlendEquationSeparate missing"), VERR_NOT_IMPLEMENTED);
1368	pState->ext.glBlendFuncSeparate = (PFNGLBLENDFUNCSEPARATEPROC)OGLGETPROCADDRESS("glBlendFuncSeparate");
1369	AssertMsgReturn(pState->ext.glBlendFuncSeparate, ("glBlendFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
1370	pState->ext.glStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC)OGLGETPROCADDRESS("glStencilOpSeparate");
1371	AssertMsgReturn(pState->ext.glStencilOpSeparate, ("glStencilOpSeparate missing"), VERR_NOT_IMPLEMENTED);
1372	pState->ext.glStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC)OGLGETPROCADDRESS("glStencilFuncSeparate");
1373	AssertMsgReturn(pState->ext.glStencilFuncSeparate, ("glStencilFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
1374	pState->ext.glBindBuffer = (PFNGLBINDBUFFERPROC)OGLGETPROCADDRESS("glBindBuffer");
1375	AssertMsgReturn(pState->ext.glBindBuffer, ("glBindBuffer missing"), VERR_NOT_IMPLEMENTED);
1376	pState->ext.glDeleteBuffers = (PFNGLDELETEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteBuffers");
1377	AssertMsgReturn(pState->ext.glDeleteBuffers, ("glDeleteBuffers missing"), VERR_NOT_IMPLEMENTED);
1378	pState->ext.glGenBuffers = (PFNGLGENBUFFERSPROC)OGLGETPROCADDRESS("glGenBuffers");
1379	AssertMsgReturn(pState->ext.glGenBuffers, ("glGenBuffers missing"), VERR_NOT_IMPLEMENTED);
1380	pState->ext.glBufferData = (PFNGLBUFFERDATAPROC)OGLGETPROCADDRESS("glBufferData");
1381	AssertMsgReturn(pState->ext.glBufferData, ("glBufferData missing"), VERR_NOT_IMPLEMENTED);
1382	pState->ext.glMapBuffer = (PFNGLMAPBUFFERPROC)OGLGETPROCADDRESS("glMapBuffer");
1383	AssertMsgReturn(pState->ext.glMapBuffer, ("glMapBuffer missing"), VERR_NOT_IMPLEMENTED);
1384	pState->ext.glUnmapBuffer = (PFNGLUNMAPBUFFERPROC)OGLGETPROCADDRESS("glUnmapBuffer");
1385	AssertMsgReturn(pState->ext.glUnmapBuffer, ("glUnmapBuffer missing"), VERR_NOT_IMPLEMENTED);
1386	pState->ext.glEnableVertexAttribArray = (PFNGLENABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glEnableVertexAttribArray");
1387	AssertMsgReturn(pState->ext.glEnableVertexAttribArray, ("glEnableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
1388	pState->ext.glDisableVertexAttribArray = (PFNGLDISABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glDisableVertexAttribArray");
1389	AssertMsgReturn(pState->ext.glDisableVertexAttribArray, ("glDisableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
1390	pState->ext.glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC)OGLGETPROCADDRESS("glVertexAttribPointer");
1391	AssertMsgReturn(pState->ext.glVertexAttribPointer, ("glVertexAttribPointer missing"), VERR_NOT_IMPLEMENTED);
1392	pState->ext.glFogCoordPointer = (PFNGLFOGCOORDPOINTERPROC)OGLGETPROCADDRESS("glFogCoordPointer");
1393	AssertMsgReturn(pState->ext.glFogCoordPointer, ("glFogCoordPointer missing"), VERR_NOT_IMPLEMENTED);
1394	pState->ext.glActiveTexture = (PFNGLACTIVETEXTUREPROC)OGLGETPROCADDRESS("glActiveTexture");
1395	AssertMsgReturn(pState->ext.glActiveTexture, ("glActiveTexture missing"), VERR_NOT_IMPLEMENTED);
1396	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
1397	pState->ext.glClientActiveTexture = (PFNGLCLIENTACTIVETEXTUREPROC)OGLGETPROCADDRESS("glClientActiveTexture");
1398	AssertMsgReturn(pState->ext.glClientActiveTexture, ("glClientActiveTexture missing"), VERR_NOT_IMPLEMENTED);
1399	#endif
1400	pState->ext.glGetProgramivARB = (PFNGLGETPROGRAMIVARBPROC)OGLGETPROCADDRESS("glGetProgramivARB");
1401	AssertMsgReturn(pState->ext.glGetProgramivARB, ("glGetProgramivARB missing"), VERR_NOT_IMPLEMENTED);
1402
1403	/* OpenGL 3.2 core */
1404	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_draw_elements_base_vertex "))
1405	{
1406	pState->ext.glDrawElementsBaseVertex = (PFNGLDRAWELEMENTSBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsBaseVertex");
1407	pState->ext.glDrawElementsInstancedBaseVertex = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsInstancedBaseVertex");
1408	}
1409	else
1410	LogRel(("VMSVGA3d: missing extension GL_ARB_draw_elements_base_vertex\n"));
1411
1412	/* OpenGL 3.2 core */
1413	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_provoking_vertex "))
1414	{
1415	pState->ext.glProvokingVertex = (PFNGLPROVOKINGVERTEXPROC)OGLGETPROCADDRESS("glProvokingVertex");
1416	}
1417	else
1418	LogRel(("VMSVGA3d: missing extension GL_ARB_provoking_vertex\n"));
1419
1420	/* Extension support */
1421	#if defined(RT_OS_DARWIN)
1422	/** @todo OpenGL version history suggest this, verify... */
1423	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 2.0, " GL_EXT_stencil_two_side ");
1424	#else
1425	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 0.0, " GL_EXT_stencil_two_side ");
1426	#endif
1427
1428	/*
1429	* Initialize the capabilities with sensible defaults.
1430	*/
1431	pState->caps.maxActiveLights = 1;
1432	pState->caps.maxTextureBufferSize = 65536;
1433	pState->caps.maxTextures = 1;
1434	pState->caps.maxClipDistances = 4;
1435	pState->caps.maxColorAttachments = 1;
1436	pState->caps.maxRectangleTextureSize = 2048;
1437	pState->caps.maxTextureAnisotropy = 2;
1438	pState->caps.maxVertexShaderInstructions = 1024;
1439	pState->caps.maxFragmentShaderInstructions = 1024;
1440	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
1441	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
1442	pState->caps.flPointSize[0] = 1;
1443	pState->caps.flPointSize[1] = 1;
1444
1445	/*
1446	* Query capabilities
1447	*/
1448	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
1449	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_BUFFER_SIZE, &pState->caps.maxTextureBufferSize));
1450	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
1451	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
1452	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
1453	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
1454	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1455	#else
1456	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
1457	#endif
1458	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
1459	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
1460	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
1461	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
1462
1463	if (pState->ext.glGetProgramivARB)
1464	{
1465	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
1466	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
1467	&pState->caps.maxFragmentShaderTemps));
1468	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
1469	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
1470	&pState->caps.maxFragmentShaderInstructions));
1471	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
1472	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
1473	&pState->caps.maxVertexShaderTemps));
1474	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
1475	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
1476	&pState->caps.maxVertexShaderInstructions));
1477	}
1478	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0, " GL_EXT_texture_compression_s3tc ");
1479
1480	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
1481	* ARB Assembly Language
1482	* These are done through testing the presence of extensions. You should test them in this order:
1483	* GL_NV_gpu_program4: SM 4.0 or better.
1484	* GL_NV_vertex_program3: SM 3.0 or better.
1485	* GL_ARB_fragment_program: SM 2.0 or better.
1486	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
1487	*
1488	*/
1489	/** @todo: distinguish between vertex and pixel shaders??? */
1490	if ( vmsvga3dCheckGLExtension(pState, 0.0, " GL_NV_gpu_program4 ")
1491	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
1492	{
1493	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
1494	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
1495	}
1496	else
1497	if ( vmsvga3dCheckGLExtension(pState, 0.0, " GL_NV_vertex_program3 ")
1498	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
1499	\|\| vmsvga3dCheckGLExtension(pState, 0.0, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
1500	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
1501	)
1502	{
1503	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
1504	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
1505	}
1506	else
1507	if ( vmsvga3dCheckGLExtension(pState, 0.0, " GL_ARB_fragment_program ")
1508	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
1509	{
1510	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
1511	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
1512	}
1513	else
1514	{
1515	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
1516	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
1517	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
1518	}
1519
1520	if (!vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_vertex_array_bgra "))
1521	{
1522	/** @todo Intel drivers don't support this extension! */
1523	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
1524	}
1525	#if 0
1526	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
1527	SVGA3D_DEVCAP_QUERY_TYPES = 15,
1528	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
1529	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
1530	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
1531	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
1532	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
1533	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
1534	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
1535	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
1536	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
1537	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
1538	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
1539	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
1540	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
1541	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
1542	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
1543	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
1544	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
1545	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
1546	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
1547	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
1548	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
1549	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
1550	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
1551	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
1552	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
1553	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
1554	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
1555	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
1556	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
1557	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
1558	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
1559	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
1560	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
1561	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
1562	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
1563	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
1564	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
1565	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
1566	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
1567	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
1568	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
1569	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
1570	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
1571	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
1572	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
1573	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
1574	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
1575	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
1576	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
1577	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
1578	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
1579	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
1580	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
1581	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
1582	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
1583	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
1584	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
1585	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
1586	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
1587	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
1588	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
1589	#endif
1590
1591	LogRel(("VMSVGA3d: Capabilities:\n"));
1592	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d maxTextureBufferSize=%d\n",
1593	pState->caps.maxActiveLights, pState->caps.maxTextures, pState->caps.maxTextureBufferSize));
1594	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
1595	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
1596	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
1597	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
1598	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
1599	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
1600	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
1601	pState->caps.maxFragmentShaderTemps,
1602	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
1603	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
1604	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
1605	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
1606
1607
1608	/* Initialize the shader library. */
1609	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1610	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1611	rc = ShaderInitLib(&pState->ShaderIf);
1612	AssertRC(rc);
1613
1614	/* Cleanup */
1615	rc = vmsvga3dContextDestroy(pThis, 1);
1616	AssertRC(rc);
1617	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1618	rc = vmsvga3dContextDestroy(pThis, 2);
1619	AssertRC(rc);
1620	#endif
1621
1622	if ( pState->fGLVersion < 3.0
1623	&& pState->fOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1624	{
1625	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1626	return VERR_NOT_IMPLEMENTED;
1627	}
1628	if ( !pState->ext.glIsRenderbuffer
1629	\|\| !pState->ext.glBindRenderbuffer
1630	\|\| !pState->ext.glDeleteRenderbuffers
1631	\|\| !pState->ext.glGenRenderbuffers
1632	\|\| !pState->ext.glRenderbufferStorage
1633	\|\| !pState->ext.glGetRenderbufferParameteriv
1634	\|\| !pState->ext.glIsFramebuffer
1635	\|\| !pState->ext.glBindFramebuffer
1636	\|\| !pState->ext.glDeleteFramebuffers
1637	\|\| !pState->ext.glGenFramebuffers
1638	\|\| !pState->ext.glCheckFramebufferStatus
1639	\|\| !pState->ext.glFramebufferTexture1D
1640	\|\| !pState->ext.glFramebufferTexture2D
1641	\|\| !pState->ext.glFramebufferTexture3D
1642	\|\| !pState->ext.glFramebufferRenderbuffer
1643	\|\| !pState->ext.glGetFramebufferAttachmentParameteriv
1644	\|\| !pState->ext.glGenerateMipmap
1645	\|\| !pState->ext.glBlitFramebuffer
1646	\|\| !pState->ext.glRenderbufferStorageMultisample
1647	\|\| !pState->ext.glFramebufferTextureLayer)
1648	{
1649	LogRel(("VMSVGA3d: missing required OpenGL extension; aborting\n"));
1650	return VERR_NOT_IMPLEMENTED;
1651	}
1652
1653	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
1654	pState->idTestContext = SVGA_ID_INVALID;
1655	#endif
1656	return VINF_SUCCESS;
1657	}
1658
1659	int vmsvga3dReset(PVGASTATE pThis)
1660	{
1661	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
1662	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1663
1664	/* Destroy all leftover surfaces. */
1665	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1666	{
1667	if (pState->paSurface[i].id != SVGA3D_INVALID_ID)
1668	vmsvga3dSurfaceDestroy(pThis, pState->paSurface[i].id);
1669	}
1670
1671	/* Destroy all leftover contexts. */
1672	for (uint32_t i = 0; i < pState->cContexts; i++)
1673	{
1674	if (pState->paContext[i].id != SVGA3D_INVALID_ID)
1675	vmsvga3dContextDestroy(pThis, pState->paContext[i].id);
1676	}
1677	return VINF_SUCCESS;
1678	}
1679
1680	int vmsvga3dTerminate(PVGASTATE pThis)
1681	{
1682	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
1683	AssertReturn(pState, VERR_WRONG_ORDER);
1684	int rc;
1685
1686	rc = vmsvga3dReset(pThis);
1687	AssertRCReturn(rc, rc);
1688
1689	/* Terminate the shader library. */
1690	rc = ShaderDestroyLib();
1691	AssertRC(rc);
1692
1693	#ifdef RT_OS_WINDOWS
1694	/* Terminate the window creation thread. */
1695	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1696	AssertRCReturn(rc, rc);
1697
1698	RTSemEventDestroy(pState->WndRequestSem);
1699	#elif defined(RT_OS_DARWIN)
1700
1701	#elif defined(RT_OS_LINUX)
1702	/* signal to the thread that it is supposed to exit */
1703	pState->bTerminate = true;
1704	/* wait for it to terminate */
1705	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1706	AssertRC(rc);
1707	XCloseDisplay(pState->display);
1708	#endif
1709
1710	RTStrFree(pState->pszExtensions);
1711	pState->pszExtensions = NULL;
1712	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1713	RTStrFree(pState->pszOtherExtensions);
1714	#endif
1715	pState->pszOtherExtensions = NULL;
1716
1717	return VINF_SUCCESS;
1718	}
1719
1720	/* Shared functions that depend on private structure definitions. */
1721	#define VMSVGA3D_OPENGL
1722	#include "DevVGA-SVGA3d-shared.h"
1723
1724	static uint32_t vmsvga3dGetSurfaceFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1725	{
1726	uint32_t result = 0;
1727
1728	/* @todo missing:
1729	*
1730	* SVGA3DFORMAT_OP_PIXELSIZE
1731	*/
1732
1733	switch (idx3dCaps)
1734	{
1735	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1736	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1737	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1738	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1739	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1740	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1741	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1742	break;
1743
1744	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1745	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1746	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1747	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1748	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1749	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1750	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1751	break;
1752	}
1753
1754	/* @todo check hardware caps! */
1755	switch (idx3dCaps)
1756	{
1757	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1758	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1759	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1760	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1761	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1762	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1763	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1764	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1765	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1766	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1767	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1768	result \|= SVGA3DFORMAT_OP_TEXTURE
1769	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1770	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1771	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1772	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1773	\| SVGA3DFORMAT_OP_CUBETEXTURE
1774	\| SVGA3DFORMAT_OP_SRGBREAD
1775	\| SVGA3DFORMAT_OP_SRGBWRITE;
1776	break;
1777
1778	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1779	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1780	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1781	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1782	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1783	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1784	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1785	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1786	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1787	break;
1788
1789	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1790	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1791	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1792	result \|= SVGA3DFORMAT_OP_TEXTURE
1793	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1794	\| SVGA3DFORMAT_OP_CUBETEXTURE
1795	\| SVGA3DFORMAT_OP_SRGBREAD;
1796	break;
1797
1798	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1799	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1800	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1801	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1802	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1803	break;
1804
1805	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1806	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1807	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1808	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1809	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1810	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1811	break;
1812
1813	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1814	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1815	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1816
1817	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1818	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1819	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1820	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1821	break;
1822	}
1823	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1824
1825	return result;
1826	}
1827
1828	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1829	{
1830	uint32_t result = 0;
1831
1832	/* @todo test this somehow */
1833	result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1834
1835	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1836	return result;
1837	}
1838
1839
1840	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1841	{
1842	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
1843	AssertReturn(pState, VERR_NO_MEMORY);
1844	int rc = VINF_SUCCESS;
1845
1846	*pu32Val = 0;
1847
1848	switch (idx3dCaps)
1849	{
1850	case SVGA3D_DEVCAP_3D:
1851	pu32Val = 1; / boolean? */
1852	break;
1853
1854	case SVGA3D_DEVCAP_MAX_LIGHTS:
1855	*pu32Val = pState->caps.maxActiveLights;
1856	break;
1857
1858	case SVGA3D_DEVCAP_MAX_TEXTURES:
1859	*pu32Val = pState->caps.maxTextures;
1860	break;
1861
1862	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1863	*pu32Val = pState->caps.maxClipDistances;
1864	break;
1865
1866	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1867	*pu32Val = pState->caps.vertexShaderVersion;
1868	break;
1869
1870	case SVGA3D_DEVCAP_VERTEX_SHADER:
1871	/* boolean? */
1872	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1873	break;
1874
1875	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1876	*pu32Val = pState->caps.fragmentShaderVersion;
1877	break;
1878
1879	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1880	/* boolean? */
1881	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1882	break;
1883
1884	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1885	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1886	/* Must be obsolete by now; surface format caps specify the same thing. */
1887	rc = VERR_INVALID_PARAMETER;
1888	break;
1889
1890	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1891	break;
1892
1893	/*
1894	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1895	* return TRUE. Even on physical hardware that does not support
1896	* these formats natively, the SVGA3D device will provide an emulation
1897	* which should be invisible to the guest OS.
1898	*/
1899	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1900	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1901	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1902	*pu32Val = 1;
1903	break;
1904
1905	case SVGA3D_DEVCAP_QUERY_TYPES:
1906	break;
1907
1908	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1909	break;
1910
1911	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1912	AssertCompile(sizeof(uint32_t) == sizeof(float));
1913	(float )pu32Val = pState->caps.flPointSize[1];
1914	break;
1915
1916	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1917	/* @todo ?? */
1918	rc = VERR_INVALID_PARAMETER;
1919	break;
1920
1921	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1922	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1923	*pu32Val = pState->caps.maxRectangleTextureSize;
1924	break;
1925
1926	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1927	//*pu32Val = pCaps->MaxVolumeExtent;
1928	break;
1929
1930	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1931	pu32Val = 32768; / hardcoded in Wine */
1932	break;
1933
1934	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1935	//*pu32Val = pCaps->MaxTextureAspectRatio;
1936	break;
1937
1938	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1939	*pu32Val = pState->caps.maxTextureAnisotropy;
1940	break;
1941
1942	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1943	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1944	pu32Val = 0xFFFFF; / hardcoded in Wine */
1945	break;
1946
1947	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1948	*pu32Val = pState->caps.maxVertexShaderInstructions;
1949	break;
1950
1951	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1952	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1953	break;
1954
1955	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1956	*pu32Val = pState->caps.maxVertexShaderTemps;
1957	break;
1958
1959	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1960	*pu32Val = pState->caps.maxFragmentShaderTemps;
1961	break;
1962
1963	case SVGA3D_DEVCAP_TEXTURE_OPS:
1964	break;
1965
1966	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1967	break;
1968
1969	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1970	break;
1971
1972	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1973	break;
1974
1975	case SVGA3D_DEVCAP_SUPERSAMPLE:
1976	break;
1977
1978	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1979	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1980	break;
1981
1982	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1983	break;
1984
1985	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /* @todo same thing? */
1986	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1987	*pu32Val = pState->caps.maxColorAttachments;
1988	break;
1989
1990	/*
1991	* This is the maximum number of SVGA context IDs that the guest
1992	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1993	*/
1994	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1995	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1996	break;
1997
1998	/*
1999	* This is the maximum number of SVGA surface IDs that the guest
2000	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
2001	*/
2002	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
2003	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
2004	break;
2005
2006	/* Supported surface formats. */
2007	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
2008	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
2009	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
2010	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
2011	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
2012	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
2013	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
2014	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
2015	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
2016	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
2017	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
2018	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
2019	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
2020	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
2021	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
2022	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
2023	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
2024	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
2025	*pu32Val = vmsvga3dGetSurfaceFormatSupport(pState, idx3dCaps);
2026	break;
2027
2028	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
2029	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
2030	pu32Val = 0; / apparently not supported in OpenGL */
2031	break;
2032
2033	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
2034	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
2035	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
2036	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
2037	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
2038	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
2039	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
2040	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
2041	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
2042	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
2043	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
2044	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
2045	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
2046	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
2047	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
2048	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
2049	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
2050	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
2051	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
2052	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
2053	*pu32Val = vmsvga3dGetSurfaceFormatSupport(pState, idx3dCaps);
2054	break;
2055
2056	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
2057	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
2058	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
2059	rc = VERR_INVALID_PARAMETER;
2060	*pu32Val = 0;
2061	break;
2062
2063	default:
2064	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
2065	rc = VERR_INVALID_PARAMETER;
2066	break;
2067	}
2068
2069	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
2070	return rc;
2071	}
2072
2073	/**
2074	* Convert SVGA format value to its OpenGL equivalent
2075	*/
2076	static void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
2077	{
2078	switch (format)
2079	{
2080	case SVGA3D_X8R8G8B8:
2081	pSurface->internalFormatGL = GL_RGB8;
2082	pSurface->formatGL = GL_BGRA;
2083	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
2084	break;
2085	case SVGA3D_A8R8G8B8:
2086	pSurface->internalFormatGL = GL_RGBA8;
2087	pSurface->formatGL = GL_BGRA;
2088	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
2089	break;
2090	case SVGA3D_R5G6B5:
2091	pSurface->internalFormatGL = GL_RGB;
2092	pSurface->formatGL = GL_RGB;
2093	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
2094	break;
2095	case SVGA3D_X1R5G5B5:
2096	pSurface->internalFormatGL = GL_RGB;
2097	pSurface->formatGL = GL_RGB;
2098	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
2099	break;
2100	case SVGA3D_A1R5G5B5:
2101	pSurface->internalFormatGL = GL_RGBA;
2102	pSurface->formatGL = GL_RGB;
2103	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
2104	break;
2105	case SVGA3D_A4R4G4B4:
2106	pSurface->internalFormatGL = GL_RGBA;
2107	pSurface->formatGL = GL_RGBA;
2108	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4;
2109	break;
2110
2111	case SVGA3D_Z_D32:
2112	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
2113	pSurface->formatGL = GL_DEPTH_COMPONENT;
2114	pSurface->typeGL = GL_UNSIGNED_INT;
2115	break;
2116	case SVGA3D_Z_D16:
2117	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
2118	pSurface->formatGL = GL_DEPTH_COMPONENT;
2119	pSurface->typeGL = GL_UNSIGNED_SHORT;
2120	break;
2121	case SVGA3D_Z_D24S8:
2122	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
2123	pSurface->formatGL = GL_DEPTH_STENCIL;
2124	pSurface->typeGL = GL_UNSIGNED_INT;
2125	break;
2126	case SVGA3D_Z_D15S1:
2127	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /* @todo ??? */
2128	pSurface->formatGL = GL_DEPTH_STENCIL;
2129	pSurface->typeGL = GL_UNSIGNED_SHORT;
2130	break;
2131	case SVGA3D_Z_D24X8:
2132	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
2133	pSurface->formatGL = GL_DEPTH_COMPONENT;
2134	pSurface->typeGL = GL_UNSIGNED_INT;
2135	break;
2136
2137	/* Advanced D3D9 depth formats. */
2138	case SVGA3D_Z_DF16:
2139	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
2140	pSurface->formatGL = GL_DEPTH_COMPONENT;
2141	pSurface->typeGL = GL_FLOAT;
2142	break;
2143
2144	case SVGA3D_Z_DF24:
2145	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
2146	pSurface->formatGL = GL_DEPTH_COMPONENT;
2147	pSurface->typeGL = GL_FLOAT; /* ??? */
2148	break;
2149
2150	case SVGA3D_Z_D24S8_INT:
2151	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
2152	pSurface->formatGL = GL_DEPTH_STENCIL;
2153	pSurface->typeGL = GL_INT; /* ??? */
2154	break;
2155
2156	case SVGA3D_DXT1:
2157	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
2158	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
2159	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
2160	break;
2161
2162	case SVGA3D_DXT3:
2163	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
2164	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
2165	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
2166	break;
2167
2168	case SVGA3D_DXT5:
2169	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
2170	pSurface->formatGL = GL_RGBA_S3TC;
2171	pSurface->typeGL = GL_UNSIGNED_INT;
2172	break;
2173
2174	case SVGA3D_LUMINANCE8:
2175	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
2176	pSurface->formatGL = GL_LUMINANCE;
2177	pSurface->typeGL = GL_UNSIGNED_BYTE;
2178	break;
2179
2180	case SVGA3D_LUMINANCE16:
2181	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
2182	pSurface->formatGL = GL_LUMINANCE;
2183	pSurface->typeGL = GL_UNSIGNED_SHORT;
2184	break;
2185
2186	case SVGA3D_LUMINANCE4_ALPHA4:
2187	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
2188	pSurface->formatGL = GL_LUMINANCE_ALPHA;
2189	pSurface->typeGL = GL_UNSIGNED_BYTE;
2190	break;
2191
2192	case SVGA3D_LUMINANCE8_ALPHA8:
2193	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
2194	pSurface->formatGL = GL_LUMINANCE_ALPHA;
2195	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
2196	break;
2197
2198	case SVGA3D_ALPHA8:
2199	pSurface->internalFormatGL = GL_ALPHA8_EXT;
2200	pSurface->formatGL = GL_ALPHA;
2201	pSurface->typeGL = GL_UNSIGNED_BYTE;
2202	break;
2203
2204	#if 0
2205
2206	/* Bump-map formats */
2207	case SVGA3D_BUMPU8V8:
2208	return D3DFMT_V8U8;
2209	case SVGA3D_BUMPL6V5U5:
2210	return D3DFMT_L6V5U5;
2211	case SVGA3D_BUMPX8L8V8U8:
2212	return D3DFMT_X8L8V8U8;
2213	case SVGA3D_BUMPL8V8U8:
2214	/* No corresponding D3D9 equivalent. */
2215	AssertFailedReturn(D3DFMT_UNKNOWN);
2216	/* signed bump-map formats */
2217	case SVGA3D_V8U8:
2218	return D3DFMT_V8U8;
2219	case SVGA3D_Q8W8V8U8:
2220	return D3DFMT_Q8W8V8U8;
2221	case SVGA3D_CxV8U8:
2222	return D3DFMT_CxV8U8;
2223	/* mixed bump-map formats */
2224	case SVGA3D_X8L8V8U8:
2225	return D3DFMT_X8L8V8U8;
2226	case SVGA3D_A2W10V10U10:
2227	return D3DFMT_A2W10V10U10;
2228	#endif
2229
2230	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB */
2231	pSurface->internalFormatGL = GL_RGBA16F;
2232	pSurface->formatGL = GL_RGBA;
2233	pSurface->typeGL = GL_FLOAT;
2234	break;
2235
2236	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB */
2237	pSurface->internalFormatGL = GL_RGBA32F;
2238	pSurface->formatGL = GL_RGBA;
2239	pSurface->typeGL = GL_FLOAT; /* ?? */
2240	break;
2241
2242	case SVGA3D_A2R10G10B10:
2243	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? */
2244	pSurface->formatGL = GL_RGBA;
2245	pSurface->typeGL = GL_UNSIGNED_INT;
2246	break;
2247
2248
2249	/* Single- and dual-component floating point formats */
2250	case SVGA3D_R_S10E5:
2251	pSurface->internalFormatGL = GL_R16F;
2252	pSurface->formatGL = GL_RED;
2253	pSurface->typeGL = GL_FLOAT;
2254	break;
2255	case SVGA3D_R_S23E8:
2256	pSurface->internalFormatGL = GL_R32F;
2257	pSurface->formatGL = GL_RG;
2258	pSurface->typeGL = GL_FLOAT;
2259	break;
2260	case SVGA3D_RG_S10E5:
2261	pSurface->internalFormatGL = GL_RG16F;
2262	pSurface->formatGL = GL_RG;
2263	pSurface->typeGL = GL_FLOAT;
2264	break;
2265	case SVGA3D_RG_S23E8:
2266	pSurface->internalFormatGL = GL_RG32F;
2267	pSurface->formatGL = GL_RG;
2268	pSurface->typeGL = GL_FLOAT;
2269	break;
2270
2271	/*
2272	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
2273	* the most efficient format to use when creating new surfaces
2274	* expressly for index or vertex data.
2275	*/
2276	case SVGA3D_BUFFER:
2277	pSurface->internalFormatGL = -1;
2278	pSurface->formatGL = -1;
2279	pSurface->typeGL = -1;
2280	break;
2281
2282	#if 0
2283	return D3DFMT_UNKNOWN;
2284
2285	case SVGA3D_V16U16:
2286	return D3DFMT_V16U16;
2287	#endif
2288
2289	case SVGA3D_G16R16:
2290	pSurface->internalFormatGL = GL_RG16;
2291	pSurface->formatGL = GL_RG;
2292	pSurface->typeGL = GL_UNSIGNED_INT;
2293	break;
2294
2295	case SVGA3D_A16B16G16R16:
2296	pSurface->internalFormatGL = GL_RGBA16;
2297	pSurface->formatGL = GL_RG;
2298	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
2299	break;
2300
2301	#if 0
2302	/* Packed Video formats */
2303	case SVGA3D_UYVY:
2304	return D3DFMT_UYVY;
2305	case SVGA3D_YUY2:
2306	return D3DFMT_YUY2;
2307
2308	/* Planar video formats */
2309	case SVGA3D_NV12:
2310	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
2311
2312	/* Video format with alpha */
2313	case SVGA3D_AYUV:
2314	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
2315
2316	case SVGA3D_BC4_UNORM:
2317	case SVGA3D_BC5_UNORM:
2318	/* Unknown; only in DX10 & 11 */
2319	break;
2320	#endif
2321	default:
2322	AssertMsgFailed(("Unsupported format %d\n", format));
2323	break;
2324	}
2325	}
2326
2327
2328	#if 0
2329	/**
2330	* Convert SVGA multi sample count value to its D3D equivalent
2331	*/
2332	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
2333	{
2334	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
2335	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
2336
2337	if (multisampleCount > 16)
2338	return D3DMULTISAMPLE_NONE;
2339
2340	/* @todo exact same mapping as d3d? */
2341	return (D3DMULTISAMPLE_TYPE)multisampleCount;
2342	}
2343	#endif
2344
2345	int vmsvga3dSurfaceDefine(PVGASTATE pThis, uint32_t sid, uint32_t surfaceFlags, SVGA3dSurfaceFormat format,
2346	SVGA3dSurfaceFace face[SVGA3D_MAX_SURFACE_FACES], uint32_t multisampleCount,
2347	SVGA3dTextureFilter autogenFilter, uint32_t cMipLevels, SVGA3dSize *pMipLevelSize)
2348	{
2349	PVMSVGA3DSURFACE pSurface;
2350	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
2351	AssertReturn(pState, VERR_NO_MEMORY);
2352
2353	Log(("vmsvga3dSurfaceDefine: sid=%x surfaceFlags=%x format=%s (%x) multiSampleCount=%d autogenFilter=%d, cMipLevels=%d size=(%d,%d,%d)\n",
2354	sid, surfaceFlags, vmsvgaSurfaceType2String(format), format, multisampleCount, autogenFilter, cMipLevels, pMipLevelSize->width, pMipLevelSize->height, pMipLevelSize->depth));
2355
2356	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2357	AssertReturn(cMipLevels >= 1, VERR_INVALID_PARAMETER);
2358	/* Assuming all faces have the same nr of mipmaps. */
2359	AssertReturn(!(surfaceFlags & SVGA3D_SURFACE_CUBEMAP) \|\| cMipLevels == face[0].numMipLevels * 6, VERR_INVALID_PARAMETER);
2360	AssertReturn((surfaceFlags & SVGA3D_SURFACE_CUBEMAP) \|\| cMipLevels == face[0].numMipLevels, VERR_INVALID_PARAMETER);
2361
2362	if (sid >= pState->cSurfaces)
2363	{
2364	pState->paSurface = (PVMSVGA3DSURFACE )RTMemRealloc(pState->paSurface, sizeof(VMSVGA3DSURFACE) * (sid + 1));
2365	AssertReturn(pState->paSurface, VERR_NO_MEMORY);
2366	memset(&pState->paSurface[pState->cSurfaces], 0, sizeof(VMSVGA3DSURFACE) * (sid + 1 - pState->cSurfaces));
2367	for (uint32_t i = pState->cSurfaces; i < sid + 1; i++)
2368	pState->paSurface[i].id = SVGA3D_INVALID_ID;
2369
2370	pState->cSurfaces = sid + 1;
2371	}
2372	/* If one already exists with this id, then destroy it now. */
2373	if (pState->paSurface[sid].id != SVGA3D_INVALID_ID)
2374	vmsvga3dSurfaceDestroy(pThis, sid);
2375
2376	pSurface = &pState->paSurface[sid];
2377	memset(pSurface, 0, sizeof(*pSurface));
2378	pSurface->id = sid;
2379	pSurface->idAssociatedContext = SVGA3D_INVALID_ID;
2380	vmsvga3dSurfaceFormat2OGL(pSurface, format);
2381
2382	pSurface->oglId.buffer = OPENGL_INVALID_ID;
2383
2384	/* The surface type is sort of undefined now, even though the hints and format can help to clear that up.
2385	* In some case we'll have to wait until the surface is used to create the D3D object.
2386	*/
2387	switch (format)
2388	{
2389	case SVGA3D_Z_D32:
2390	case SVGA3D_Z_D16:
2391	case SVGA3D_Z_D24S8:
2392	case SVGA3D_Z_D15S1:
2393	case SVGA3D_Z_D24X8:
2394	case SVGA3D_Z_DF16:
2395	case SVGA3D_Z_DF24:
2396	case SVGA3D_Z_D24S8_INT:
2397	surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
2398	break;
2399
2400	/* Texture compression formats */
2401	case SVGA3D_DXT1:
2402	case SVGA3D_DXT2:
2403	case SVGA3D_DXT3:
2404	case SVGA3D_DXT4:
2405	case SVGA3D_DXT5:
2406	/* Bump-map formats */
2407	case SVGA3D_BUMPU8V8:
2408	case SVGA3D_BUMPL6V5U5:
2409	case SVGA3D_BUMPX8L8V8U8:
2410	case SVGA3D_BUMPL8V8U8:
2411	case SVGA3D_V8U8:
2412	case SVGA3D_Q8W8V8U8:
2413	case SVGA3D_CxV8U8:
2414	case SVGA3D_X8L8V8U8:
2415	case SVGA3D_A2W10V10U10:
2416	case SVGA3D_V16U16:
2417	/* Typical render target formats; we should allow render target buffers to be used as textures. */
2418	case SVGA3D_X8R8G8B8:
2419	case SVGA3D_A8R8G8B8:
2420	case SVGA3D_R5G6B5:
2421	case SVGA3D_X1R5G5B5:
2422	case SVGA3D_A1R5G5B5:
2423	case SVGA3D_A4R4G4B4:
2424	surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2425	break;
2426
2427	case SVGA3D_LUMINANCE8:
2428	case SVGA3D_LUMINANCE4_ALPHA4:
2429	case SVGA3D_LUMINANCE16:
2430	case SVGA3D_LUMINANCE8_ALPHA8:
2431	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB */
2432	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB */
2433	case SVGA3D_A2R10G10B10:
2434	case SVGA3D_ALPHA8:
2435	case SVGA3D_R_S10E5:
2436	case SVGA3D_R_S23E8:
2437	case SVGA3D_RG_S10E5:
2438	case SVGA3D_RG_S23E8:
2439	case SVGA3D_G16R16:
2440	case SVGA3D_A16B16G16R16:
2441	case SVGA3D_UYVY:
2442	case SVGA3D_YUY2:
2443	case SVGA3D_NV12:
2444	case SVGA3D_AYUV:
2445	case SVGA3D_BC4_UNORM:
2446	case SVGA3D_BC5_UNORM:
2447	break;
2448
2449	/*
2450	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
2451	* the most efficient format to use when creating new surfaces
2452	* expressly for index or vertex data.
2453	*/
2454	case SVGA3D_BUFFER:
2455	break;
2456
2457	default:
2458	break;
2459	}
2460
2461	pSurface->flags = surfaceFlags;
2462	pSurface->format = format;
2463	memcpy(pSurface->faces, face, sizeof(pSurface->faces));
2464	pSurface->cFaces = 1; /* check for cube maps later */
2465	pSurface->multiSampleCount = multisampleCount;
2466	pSurface->autogenFilter = autogenFilter;
2467	Assert(autogenFilter != SVGA3D_TEX_FILTER_FLATCUBIC);
2468	Assert(autogenFilter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2469	pSurface->pMipmapLevels = (PVMSVGA3DMIPMAPLEVEL)RTMemAllocZ(cMipLevels * sizeof(VMSVGA3DMIPMAPLEVEL));
2470	AssertReturn(pSurface->pMipmapLevels, VERR_NO_MEMORY);
2471
2472	for (uint32_t i=0; i < cMipLevels; i++)
2473	pSurface->pMipmapLevels[i].size = pMipLevelSize[i];
2474
2475	pSurface->cbBlock = vmsvga3dSurfaceFormatSize(format);
2476
2477	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))
2478	{
2479	case SVGA3D_SURFACE_CUBEMAP:
2480	Log(("SVGA3D_SURFACE_CUBEMAP\n"));
2481	pSurface->cFaces = 6;
2482	break;
2483
2484	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2485	Log(("SVGA3D_SURFACE_HINT_INDEXBUFFER\n"));
2486	/* else type unknown at this time; postpone buffer creation */
2487	break;
2488
2489	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2490	Log(("SVGA3D_SURFACE_HINT_VERTEXBUFFER\n"));
2491	/* Type unknown at this time; postpone buffer creation */
2492	break;
2493
2494	case SVGA3D_SURFACE_HINT_TEXTURE:
2495	Log(("SVGA3D_SURFACE_HINT_TEXTURE\n"));
2496	break;
2497
2498	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2499	Log(("SVGA3D_SURFACE_HINT_RENDERTARGET\n"));
2500	break;
2501
2502	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2503	Log(("SVGA3D_SURFACE_HINT_DEPTHSTENCIL\n"));
2504	break;
2505
2506	default:
2507	/* Unknown; decide later. */
2508	break;
2509	}
2510
2511	/* Allocate buffer to hold the surface data until we can move it into a D3D object */
2512	for (uint32_t iFace=0; iFace < pSurface->cFaces; iFace++)
2513	{
2514	for (uint32_t i=0; i < pSurface->faces[iFace].numMipLevels; i++)
2515	{
2516	uint32_t idx = i + iFace * pSurface->faces[0].numMipLevels;
2517
2518	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));
2519	Log(("vmsvga3dSurfaceDefine: cbPitch=%x cbBlock=%x \n", pSurface->cbBlock * pSurface->pMipmapLevels[idx].size.width, pSurface->cbBlock));
2520
2521	pSurface->pMipmapLevels[idx].cbSurfacePitch = pSurface->cbBlock * pSurface->pMipmapLevels[idx].size.width;
2522	pSurface->pMipmapLevels[idx].cbSurface = pSurface->pMipmapLevels[idx].cbSurfacePitch * pSurface->pMipmapLevels[idx].size.height * pSurface->pMipmapLevels[idx].size.depth;
2523	pSurface->pMipmapLevels[idx].pSurfaceData = RTMemAllocZ(pSurface->pMipmapLevels[idx].cbSurface);
2524	AssertReturn(pSurface->pMipmapLevels[idx].pSurfaceData, VERR_NO_MEMORY);
2525	}
2526	}
2527	return VINF_SUCCESS;
2528	}
2529
2530	int vmsvga3dSurfaceDestroy(PVGASTATE pThis, uint32_t sid)
2531	{
2532	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
2533	AssertReturn(pState, VERR_NO_MEMORY);
2534
2535	if ( sid < pState->cSurfaces
2536	&& pState->paSurface[sid].id == sid)
2537	{
2538	PVMSVGA3DSURFACE pSurface = &pState->paSurface[sid];
2539	PVMSVGA3DCONTEXT pContext = NULL;
2540
2541	Log(("vmsvga3dSurfaceDestroy id %x\n", sid));
2542
2543	/* @todo stricter checks for associated context */
2544	uint32_t cid = pSurface->idAssociatedContext;
2545	if ( cid <= pState->cContexts
2546	&& pState->paContext[cid].id == cid)
2547	{
2548	pContext = &pState->paContext[cid];
2549	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2550	}
2551	else
2552	{
2553	/* Pick any active context; we need something here */
2554	for (cid = 0; cid < pState->cContexts; cid++)
2555	{
2556	if (pState->paContext[cid].id == cid)
2557	{
2558	pContext = &pState->paContext[cid];
2559	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2560	break;
2561	}
2562	}
2563	AssertReturn(pContext, VERR_INTERNAL_ERROR); /* otherwise crashes/fails */
2564	}
2565
2566	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))
2567	{
2568	case SVGA3D_SURFACE_CUBEMAP:
2569	AssertFailed(); /* @todo */
2570	break;
2571
2572	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2573	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2574	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
2575	{
2576	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
2577	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2578	}
2579	break;
2580
2581	case SVGA3D_SURFACE_HINT_TEXTURE:
2582	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2583	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
2584	{
2585	glDeleteTextures(1, &pSurface->oglId.texture);
2586	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2587	}
2588	break;
2589
2590	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2591	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2592	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /* @todo actual texture surface not supported */
2593	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
2594	{
2595	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
2596	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2597	}
2598	break;
2599
2600	default:
2601	break;
2602	}
2603
2604	if (pSurface->pMipmapLevels)
2605	{
2606	for (uint32_t face=0; face < pSurface->cFaces; face++)
2607	{
2608	for (uint32_t i=0; i < pSurface->faces[face].numMipLevels; i++)
2609	{
2610	uint32_t idx = i + face * pSurface->faces[0].numMipLevels;
2611	if (pSurface->pMipmapLevels[idx].pSurfaceData)
2612	RTMemFree(pSurface->pMipmapLevels[idx].pSurfaceData);
2613	}
2614	}
2615	RTMemFree(pSurface->pMipmapLevels);
2616	}
2617
2618	memset(pSurface, 0, sizeof(*pSurface));
2619	pSurface->id = SVGA3D_INVALID_ID;
2620	}
2621	else
2622	AssertFailedReturn(VERR_INVALID_PARAMETER);
2623
2624	return VINF_SUCCESS;
2625	}
2626
2627	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
2628	{
2629	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
2630	uint32_t sidSrc = src.sid;
2631	uint32_t sidDest = dest.sid;
2632	int rc = VINF_SUCCESS;
2633
2634	AssertReturn(pState, VERR_NO_MEMORY);
2635	AssertReturn(sidSrc < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2636	AssertReturn(sidSrc < pState->cSurfaces && pState->paSurface[sidSrc].id == sidSrc, VERR_INVALID_PARAMETER);
2637	AssertReturn(sidDest < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2638	AssertReturn(sidDest < pState->cSurfaces && pState->paSurface[sidDest].id == sidDest, VERR_INVALID_PARAMETER);
2639
2640	for (uint32_t i = 0; i < cCopyBoxes; i++)
2641	{
2642	SVGA3dBox destBox, srcBox;
2643
2644	srcBox.x = pBox[i].srcx;
2645	srcBox.y = pBox[i].srcy;
2646	srcBox.z = pBox[i].srcz;
2647	srcBox.w = pBox[i].w;
2648	srcBox.h = pBox[i].h;
2649	srcBox.d = pBox[i].z;
2650
2651	destBox.x = pBox[i].x;
2652	destBox.y = pBox[i].y;
2653	destBox.z = pBox[i].z;
2654	destBox.w = pBox[i].w;
2655	destBox.h = pBox[i].h;
2656	destBox.z = pBox[i].z;
2657
2658	rc = vmsvga3dSurfaceStretchBlt(pThis, dest, destBox, src, srcBox, SVGA3D_STRETCH_BLT_LINEAR);
2659	AssertRCReturn(rc, rc);
2660	}
2661	return VINF_SUCCESS;
2662	}
2663
2664	/* Create D3D texture object for the specified surface. */
2665	static int vmsvga3dCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext, PVMSVGA3DSURFACE pSurface)
2666	{
2667	GLint activeTexture = 0;
2668
2669	glGenTextures(1, &pSurface->oglId.texture);
2670	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2671	/* @todo Set the mip map generation filter settings. */
2672
2673	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2674	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2675
2676	/* Must bind texture to the current context in order to change it. */
2677	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2678	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2679
2680	if (pSurface->fDirty)
2681	{
2682	Log(("vmsvga3dCreateTexture: sync dirty texture\n"));
2683	for (uint32_t i = 0; i < pSurface->faces[0].numMipLevels; i++)
2684	{
2685	if (pSurface->pMipmapLevels[i].fDirty)
2686	{
2687	Log(("vmsvga3dCreateTexture: sync dirty texture mipmap level %d (pitch %x)\n", i, pSurface->pMipmapLevels[i].cbSurfacePitch));
2688
2689	glTexImage2D(GL_TEXTURE_2D,
2690	i,
2691	pSurface->internalFormatGL,
2692	pSurface->pMipmapLevels[i].size.width,
2693	pSurface->pMipmapLevels[i].size.height,
2694	0,
2695	pSurface->formatGL,
2696	pSurface->typeGL,
2697	pSurface->pMipmapLevels[i].pSurfaceData);
2698
2699	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2700
2701	pSurface->pMipmapLevels[i].fDirty = false;
2702	}
2703	}
2704	pSurface->fDirty = false;
2705	}
2706	else
2707	/* Reserve texture memory. */
2708	glTexImage2D(GL_TEXTURE_2D,
2709	0,
2710	pSurface->internalFormatGL,
2711	pSurface->pMipmapLevels[0].size.width,
2712	pSurface->pMipmapLevels[0].size.height,
2713	0,
2714	pSurface->formatGL,
2715	pSurface->typeGL,
2716	NULL);
2717
2718	/* Restore the old active texture. */
2719	glBindTexture(GL_TEXTURE_2D, activeTexture);
2720	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2721
2722	pSurface->flags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2723	pSurface->idAssociatedContext = idAssociatedContext;
2724	return VINF_SUCCESS;
2725	}
2726
2727	int vmsvga3dSurfaceStretchBlt(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dBox destBox, SVGA3dSurfaceImageId src, SVGA3dBox srcBox, SVGA3dStretchBltMode mode)
2728	{
2729	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
2730	PVMSVGA3DSURFACE pSurfaceSrc;
2731	uint32_t sidSrc = src.sid;
2732	PVMSVGA3DSURFACE pSurfaceDest;
2733	uint32_t sidDest = dest.sid;
2734	int rc = VINF_SUCCESS;
2735	uint32_t cid;
2736	PVMSVGA3DCONTEXT pContext;
2737
2738	AssertReturn(pState, VERR_NO_MEMORY);
2739	AssertReturn(sidSrc < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2740	AssertReturn(sidSrc < pState->cSurfaces && pState->paSurface[sidSrc].id == sidSrc, VERR_INVALID_PARAMETER);
2741	AssertReturn(sidDest < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2742	AssertReturn(sidDest < pState->cSurfaces && pState->paSurface[sidDest].id == sidDest, VERR_INVALID_PARAMETER);
2743
2744	pSurfaceSrc = &pState->paSurface[sidSrc];
2745	pSurfaceDest = &pState->paSurface[sidDest];
2746	AssertReturn(pSurfaceSrc->faces[0].numMipLevels > src.mipmap, VERR_INVALID_PARAMETER);
2747	AssertReturn(pSurfaceDest->faces[0].numMipLevels > dest.mipmap, VERR_INVALID_PARAMETER);
2748
2749	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));
2750
2751	/* @todo stricter checks for associated context */
2752	cid = pSurfaceDest->idAssociatedContext;
2753	if (cid == SVGA3D_INVALID_ID)
2754	cid = pSurfaceSrc->idAssociatedContext;
2755
2756	if ( cid >= pState->cContexts
2757	\|\| pState->paContext[cid].id != cid)
2758	{
2759	Log(("vmsvga3dSurfaceStretchBlt invalid context id!\n"));
2760	AssertFailedReturn(VERR_INVALID_PARAMETER);
2761	}
2762	pContext = &pState->paContext[cid];
2763	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2764
2765	if (pSurfaceSrc->oglId.texture == OPENGL_INVALID_ID)
2766	{
2767	/* Unknown surface type; turn it into a texture, which can be used for other purposes too. */
2768	Log(("vmsvga3dSurfaceStretchBlt: unknown src surface id=%x type=%d format=%d -> create texture\n", sidSrc, pSurfaceSrc->flags, pSurfaceSrc->format));
2769	rc = vmsvga3dCreateTexture(pState, pContext, cid, pSurfaceSrc);
2770	AssertRCReturn(rc, rc);
2771	}
2772
2773	if (pSurfaceDest->oglId.texture == OPENGL_INVALID_ID)
2774	{
2775	/* Unknown surface type; turn it into a texture, which can be used for other purposes too. */
2776	Log(("vmsvga3dSurfaceStretchBlt: unknown dest surface id=%x type=%d format=%d -> create texture\n", sidDest, pSurfaceDest->flags, pSurfaceDest->format));
2777	rc = vmsvga3dCreateTexture(pState, pContext, cid, pSurfaceDest);
2778	AssertRCReturn(rc, rc);
2779	}
2780
2781	/* Activate the read and draw framebuffer objects. */
2782	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2783	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2784	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2785	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2786
2787	/* Bind the source and destination objects to the right place. */
2788	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurfaceSrc->oglId.texture, src.mipmap);
2789	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2790	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurfaceDest->oglId.texture, dest.mipmap);
2791	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2792
2793	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),
2794	srcBox.x + srcBox.w, D3D_TO_OGL_Y_COORD(pSurfaceSrc, srcBox.y), destBox.x, D3D_TO_OGL_Y_COORD(pSurfaceDest, destBox.y + destBox.h),
2795	destBox.x + destBox.w, D3D_TO_OGL_Y_COORD(pSurfaceDest, destBox.y)));
2796
2797	pState->ext.glBlitFramebuffer(srcBox.x,
2798	#ifdef MANUAL_FLIP_SURFACE_DATA
2799	D3D_TO_OGL_Y_COORD(pSurfaceSrc, srcBox.y + srcBox.h), /* inclusive */
2800	#else
2801	srcBox.y,
2802	#endif
2803	srcBox.x + srcBox.w, /* exclusive. */
2804	#ifdef MANUAL_FLIP_SURFACE_DATA
2805	D3D_TO_OGL_Y_COORD(pSurfaceSrc, srcBox.y), /* exclusive */
2806	#else
2807	srcBox.y + srcBox.h,
2808	#endif
2809	destBox.x,
2810	#ifdef MANUAL_FLIP_SURFACE_DATA
2811	D3D_TO_OGL_Y_COORD(pSurfaceDest, destBox.y + destBox.h), /* inclusive. */
2812	#else
2813	destBox.y,
2814	#endif
2815	destBox.x + destBox.w, /* exclusive. */
2816	#ifdef MANUAL_FLIP_SURFACE_DATA
2817	D3D_TO_OGL_Y_COORD(pSurfaceDest, destBox.y), /* exclusive */
2818	#else
2819	destBox.y + destBox.h,
2820	#endif
2821	GL_COLOR_BUFFER_BIT,
2822	(mode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2823	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2824
2825	/* Reset the frame buffer association */
2826	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2827	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2828
2829	return VINF_SUCCESS;
2830	}
2831
2832	int vmsvga3dSurfaceDMA(PVGASTATE pThis, SVGA3dGuestImage guest, SVGA3dSurfaceImageId host, SVGA3dTransferType transfer, uint32_t cCopyBoxes, SVGA3dCopyBox *pBoxes)
2833	{
2834	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
2835	PVMSVGA3DSURFACE pSurface;
2836	PVMSVGA3DMIPMAPLEVEL pMipLevel;
2837	uint32_t sid = host.sid;
2838	int rc = VINF_SUCCESS;
2839
2840	AssertReturn(pState, VERR_NO_MEMORY);
2841	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2842	AssertReturn(sid < pState->cSurfaces && pState->paSurface[sid].id == sid, VERR_INVALID_PARAMETER);
2843
2844	pSurface = &pState->paSurface[sid];
2845	AssertReturn(pSurface->faces[0].numMipLevels > host.mipmap, VERR_INVALID_PARAMETER);
2846	pMipLevel = &pSurface->pMipmapLevels[host.mipmap];
2847
2848	if (pSurface->flags & SVGA3D_SURFACE_HINT_TEXTURE)
2849	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));
2850	else
2851	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));
2852
2853	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2854	{
2855	AssertReturn(pSurface->pMipmapLevels[host.mipmap].pSurfaceData, VERR_INTERNAL_ERROR);
2856
2857	for (unsigned i = 0; i < cCopyBoxes; i++)
2858	{
2859	unsigned uDestOffset;
2860	unsigned cbSrcPitch;
2861	uint8_t *pBufferStart;
2862
2863	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));
2864	/* Apparently we're supposed to clip it (gmr test sample) */
2865	if (pBoxes[i].x + pBoxes[i].w > pMipLevel->size.width)
2866	pBoxes[i].w = pMipLevel->size.width - pBoxes[i].x;
2867	if (pBoxes[i].y + pBoxes[i].h > pMipLevel->size.height)
2868	pBoxes[i].h = pMipLevel->size.height - pBoxes[i].y;
2869	if (pBoxes[i].z + pBoxes[i].d > pMipLevel->size.depth)
2870	pBoxes[i].d = pMipLevel->size.depth - pBoxes[i].z;
2871
2872	if ( !pBoxes[i].w
2873	\|\| !pBoxes[i].h
2874	\|\| !pBoxes[i].d
2875	\|\| pBoxes[i].x > pMipLevel->size.width
2876	\|\| pBoxes[i].y > pMipLevel->size.height
2877	\|\| pBoxes[i].z > pMipLevel->size.depth)
2878	{
2879	Log(("Empty box; skip\n"));
2880	continue;
2881	}
2882
2883	uDestOffset = pBoxes[i].x * pSurface->cbBlock + pBoxes[i].y * pMipLevel->cbSurfacePitch + pBoxes[i].z * pMipLevel->size.height * pMipLevel->cbSurfacePitch;
2884	AssertReturn(uDestOffset + pBoxes[i].w * pSurface->cbBlock * pBoxes[i].h * pBoxes[i].d <= pMipLevel->cbSurface, VERR_INTERNAL_ERROR);
2885
2886	cbSrcPitch = (guest.pitch == 0) ? pBoxes[i].w * pSurface->cbBlock : guest.pitch;
2887	#ifdef MANUAL_FLIP_SURFACE_DATA
2888	pBufferStart = (uint8_t *)pMipLevel->pSurfaceData
2889	+ pBoxes[i].x * pSurface->cbBlock
2890	+ pMipLevel->cbSurface - pBoxes[i].y * pMipLevel->cbSurfacePitch
2891	- pMipLevel->cbSurfacePitch; /* flip image during copy */
2892	#else
2893	pBufferStart = (uint8_t *)pMipLevel->pSurfaceData + uDestOffset;
2894	#endif
2895	rc = vmsvgaGMRTransfer(pThis,
2896	transfer,
2897	pBufferStart,
2898	#ifdef MANUAL_FLIP_SURFACE_DATA
2899	-(int32_t)pMipLevel->cbSurfacePitch,
2900	#else
2901	(int32_t)pMipLevel->cbSurfacePitch,
2902	#endif
2903	guest.ptr,
2904	pBoxes[i].srcx * pSurface->cbBlock + (pBoxes[i].srcy + pBoxes[i].srcz * pBoxes[i].h) * cbSrcPitch,
2905	cbSrcPitch,
2906	pBoxes[i].w * pSurface->cbBlock,
2907	pBoxes[i].d * pBoxes[i].h);
2908
2909	Log4(("first line:\n%.*Rhxd\n", pMipLevel->cbSurface, pMipLevel->pSurfaceData));
2910
2911	AssertRC(rc);
2912	}
2913	pSurface->pMipmapLevels[host.mipmap].fDirty = true;
2914	pSurface->fDirty = true;
2915	}
2916	else
2917	{
2918	/* @todo stricter checks for associated context */
2919	uint32_t cid = pSurface->idAssociatedContext;
2920	if ( cid >= pState->cContexts
2921	\|\| pState->paContext[cid].id != cid)
2922	{
2923	Log(("vmsvga3dSurfaceDMA invalid context id (%x - %x)!\n", cid, (cid >= pState->cContexts) ? -1 : pState->paContext[cid].id));
2924	AssertFailedReturn(VERR_INVALID_PARAMETER);
2925	}
2926	PVMSVGA3DCONTEXT pContext = &pState->paContext[cid];
2927	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2928
2929	for (unsigned i = 0; i < cCopyBoxes; i++)
2930	{
2931	bool fVertex = false;
2932	unsigned cbSrcPitch;
2933
2934	/* Apparently we're supposed to clip it (gmr test sample) */
2935	if (pBoxes[i].x + pBoxes[i].w > pMipLevel->size.width)
2936	pBoxes[i].w = pMipLevel->size.width - pBoxes[i].x;
2937	if (pBoxes[i].y + pBoxes[i].h > pMipLevel->size.height)
2938	pBoxes[i].h = pMipLevel->size.height - pBoxes[i].y;
2939	if (pBoxes[i].z + pBoxes[i].d > pMipLevel->size.depth)
2940	pBoxes[i].d = pMipLevel->size.depth - pBoxes[i].z;
2941
2942	Assert((pBoxes[i].d == 1 \|\| pBoxes[i].d == 0) && pBoxes[i].z == 0);
2943
2944	if ( !pBoxes[i].w
2945	\|\| !pBoxes[i].h
2946	\|\| pBoxes[i].x > pMipLevel->size.width
2947	\|\| pBoxes[i].y > pMipLevel->size.height)
2948	{
2949	Log(("Empty box; skip\n"));
2950	continue;
2951	}
2952
2953	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));
2954
2955	cbSrcPitch = (guest.pitch == 0) ? pBoxes[i].w * pSurface->cbBlock : guest.pitch;
2956
2957	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))
2958	{
2959	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2960	case SVGA3D_SURFACE_HINT_TEXTURE:
2961	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2962	{
2963	uint32_t cbSurfacePitch;
2964	uint8_t pDoubleBuffer, pBufferStart;
2965	unsigned uDestOffset = 0;
2966
2967	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
2968	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2969
2970	if (transfer == SVGA3D_READ_HOST_VRAM)
2971	{
2972	GLint activeTexture;
2973
2974	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2975	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2976
2977	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2978	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2979
2980	glGetTexImage(GL_TEXTURE_2D,
2981	host.mipmap,
2982	pSurface->formatGL,
2983	pSurface->typeGL,
2984	pDoubleBuffer);
2985	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2986
2987	/* Restore the old active texture. */
2988	glBindTexture(GL_TEXTURE_2D, activeTexture);
2989	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2990
2991	uDestOffset = pBoxes[i].x * pSurface->cbBlock + pBoxes[i].y * pMipLevel->cbSurfacePitch;
2992	AssertReturnStmt( uDestOffset + pBoxes[i].w * pSurface->cbBlock + (pBoxes[i].h - 1) * pMipLevel->cbSurfacePitch
2993	<= pMipLevel->cbSurface,
2994	RTMemFree(pDoubleBuffer),
2995	VERR_INTERNAL_ERROR);
2996
2997	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2998
2999	#ifdef MANUAL_FLIP_SURFACE_DATA
3000	pBufferStart = pDoubleBuffer
3001	+ pBoxes[i].x * pSurface->cbBlock
3002	+ pMipLevel->cbSurface - pBoxes[i].y * cbSurfacePitch
3003	- cbSurfacePitch; /* flip image during copy */
3004	#else
3005	pBufferStart = pDoubleBuffer + uDestOffset;
3006	#endif
3007	}
3008	else
3009	{
3010	cbSurfacePitch = pBoxes[i].w * pSurface->cbBlock;
3011	#ifdef MANUAL_FLIP_SURFACE_DATA
3012	pBufferStart = pDoubleBuffer + cbSurfacePitch * pBoxes[i].h - cbSurfacePitch; /* flip image during copy */
3013	#else
3014	pBufferStart = pDoubleBuffer;
3015	#endif
3016	}
3017
3018	rc = vmsvgaGMRTransfer(pThis,
3019	transfer,
3020	pBufferStart,
3021	#ifdef MANUAL_FLIP_SURFACE_DATA
3022	-(int32_t)cbSurfacePitch,
3023	#else
3024	(int32_t)cbSurfacePitch,
3025	#endif
3026	guest.ptr,
3027	pBoxes[i].srcx * pSurface->cbBlock + pBoxes[i].srcy * cbSrcPitch,
3028	cbSrcPitch,
3029	pBoxes[i].w * pSurface->cbBlock,
3030	pBoxes[i].h);
3031	AssertRC(rc);
3032
3033	/* Update the opengl surface data. */
3034	if (transfer == SVGA3D_WRITE_HOST_VRAM)
3035	{
3036	GLint activeTexture = 0;
3037	GLint alignment;
3038
3039	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
3040	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3041
3042	/* Must bind texture to the current context in order to change it. */
3043	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
3044	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3045
3046	Log(("vmsvga3dSurfaceDMA: copy texture mipmap level %d (pitch %x)\n", host.mipmap, pMipLevel->cbSurfacePitch));
3047
3048	/* Set row length and alignment of the input data. */
3049	glGetIntegerv(GL_UNPACK_ALIGNMENT, &alignment);
3050	glPixelStorei(GL_UNPACK_ROW_LENGTH, pBoxes[i].w);
3051	glPixelStorei(GL_UNPACK_ALIGNMENT, pSurface->cbBlock);
3052
3053	glTexSubImage2D(GL_TEXTURE_2D,
3054	host.mipmap,
3055	pBoxes[i].x,
3056	pBoxes[i].y,
3057	pBoxes[i].w,
3058	pBoxes[i].h,
3059	pSurface->formatGL,
3060	pSurface->typeGL,
3061	pDoubleBuffer);
3062
3063	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3064
3065	/* Restore old values. */
3066	glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
3067	glPixelStorei(GL_UNPACK_ALIGNMENT, alignment);
3068
3069	/* Restore the old active texture. */
3070	glBindTexture(GL_TEXTURE_2D, activeTexture);
3071	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3072	}
3073
3074	Log4(("first line:\n%.Rhxd\n", pBoxes[i].w pSurface->cbBlock, pDoubleBuffer));
3075
3076	/* Free the double buffer. */
3077	RTMemFree(pDoubleBuffer);
3078	break;
3079	}
3080
3081	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
3082	AssertFailed(); /* @todo */
3083	break;
3084
3085	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
3086	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
3087	{
3088	Assert(pBoxes[i].h == 1);
3089
3090	VMSVGA3D_CLEAR_GL_ERRORS();
3091	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
3092	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
3093	{
3094	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
3095	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
3096	if (RT_LIKELY(pbData != NULL))
3097	{
3098	unsigned offDst = pBoxes[i].x * pSurface->cbBlock + pBoxes[i].y * pMipLevel->cbSurfacePitch;
3099	if (RT_LIKELY( offDst + pBoxes[i].w * pSurface->cbBlock + (pBoxes[i].h - 1) * pMipLevel->cbSurfacePitch
3100	<= pMipLevel->cbSurface))
3101	{
3102	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n", (fVertex) ? "vertex" : "index",
3103	pBoxes[i].x, pBoxes[i].y, pBoxes[i].x + pBoxes[i].w, pBoxes[i].y + pBoxes[i].h));
3104
3105	rc = vmsvgaGMRTransfer(pThis,
3106	transfer,
3107	pbData + offDst,
3108	pMipLevel->cbSurfacePitch,
3109	guest.ptr,
3110	pBoxes[i].srcx * pSurface->cbBlock + pBoxes[i].srcy * cbSrcPitch,
3111	cbSrcPitch,
3112	pBoxes[i].w * pSurface->cbBlock,
3113	pBoxes[i].h);
3114	AssertRC(rc);
3115
3116	Log4(("first line:\n%.*Rhxd\n", cbSrcPitch, pbData));
3117	}
3118	else
3119	{
3120	AssertFailed();
3121	rc = VERR_INTERNAL_ERROR;
3122	}
3123
3124	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
3125	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3126	}
3127	else
3128	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
3129	}
3130	else
3131	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
3132	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
3133	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3134	break;
3135	}
3136
3137	default:
3138	AssertFailed();
3139	break;
3140	}
3141	}
3142	}
3143	return rc;
3144	}
3145
3146	int vmsvga3dSurfaceBlitToScreen(PVGASTATE pThis, uint32_t dest, SVGASignedRect destRect, SVGA3dSurfaceImageId src, SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *pRect)
3147	{
3148	/* Requires SVGA_FIFO_CAP_SCREEN_OBJECT support */
3149	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));
3150	for (uint32_t i = 0; i < cRects; i++)
3151	{
3152	Log(("vmsvga3dSurfaceBlitToScreen: clipping rect %d (%d,%d)(%d,%d)\n", i, pRect[i].left, pRect[i].top, pRect[i].right, pRect[i].bottom));
3153	}
3154
3155	/* @todo Only screen 0 for now. */
3156	AssertReturn(dest == 0, VERR_INTERNAL_ERROR);
3157	AssertReturn(src.mipmap == 0 && src.face == 0, VERR_INVALID_PARAMETER);
3158	/* @todo scaling */
3159	AssertReturn(destRect.right - destRect.left == srcRect.right - srcRect.left && destRect.bottom - destRect.top == srcRect.bottom - srcRect.top, VERR_INVALID_PARAMETER);
3160
3161	if (cRects == 0)
3162	{
3163	/* easy case; no clipping */
3164	SVGA3dCopyBox box;
3165	SVGA3dGuestImage dst;
3166
3167	box.x = destRect.left;
3168	box.y = destRect.top;
3169	box.z = 0;
3170	box.w = destRect.right - destRect.left;
3171	box.h = destRect.bottom - destRect.top;
3172	box.d = 1;
3173	box.srcx = srcRect.left;
3174	box.srcy = srcRect.top;
3175	box.srcz = 0;
3176
3177	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
3178	dst.ptr.offset = 0;
3179	dst.pitch = pThis->svga.cbScanline;
3180
3181	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
3182	AssertRCReturn(rc, rc);
3183
3184	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
3185	return VINF_SUCCESS;
3186	}
3187	else
3188	{
3189	SVGA3dGuestImage dst;
3190	SVGA3dCopyBox box;
3191
3192	box.srcz = 0;
3193	box.z = 0;
3194	box.d = 1;
3195
3196	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
3197	dst.ptr.offset = 0;
3198	dst.pitch = pThis->svga.cbScanline;
3199
3200	/* @todo merge into one SurfaceDMA call */
3201	for (uint32_t i = 0; i < cRects; i++)
3202	{
3203	/* The clipping rectangle is relative to the top-left corner of srcRect & destRect. Adjust here. */
3204	box.srcx = srcRect.left + pRect[i].left;
3205	box.srcy = srcRect.top + pRect[i].top;
3206
3207	box.x = pRect[i].left + destRect.left;
3208	box.y = pRect[i].top + destRect.top;
3209	box.z = 0;
3210	box.w = pRect[i].right - pRect[i].left;
3211	box.h = pRect[i].bottom - pRect[i].top;
3212
3213	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
3214	AssertRCReturn(rc, rc);
3215
3216	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
3217	}
3218
3219	return VINF_SUCCESS;
3220	}
3221	}
3222
3223	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
3224	{
3225	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
3226	PVMSVGA3DSURFACE pSurface;
3227	int rc = VINF_SUCCESS;
3228	PVMSVGA3DCONTEXT pContext;
3229	uint32_t cid;
3230	GLint activeTexture = 0;
3231
3232	AssertReturn(pState, VERR_NO_MEMORY);
3233	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
3234	AssertReturn(sid < pState->cSurfaces && pState->paSurface[sid].id == sid, VERR_INVALID_PARAMETER);
3235
3236	pSurface = &pState->paSurface[sid];
3237	AssertReturn(pSurface->idAssociatedContext != SVGA3D_INVALID_ID, VERR_INTERNAL_ERROR);
3238
3239	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
3240	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
3241	pSurface->autogenFilter = filter;
3242
3243	Log(("vmsvga3dGenerateMipmaps: sid=%x filter=%d\n", sid, filter));
3244
3245	/* @todo stricter checks for associated context */
3246	cid = pSurface->idAssociatedContext;
3247
3248	if ( cid >= pState->cContexts
3249	\|\| pState->paContext[cid].id != cid)
3250	{
3251	Log(("vmsvga3dGenerateMipmaps invalid context id!\n"));
3252	return VERR_INVALID_PARAMETER;
3253	}
3254	pContext = &pState->paContext[cid];
3255	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3256
3257	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
3258	{
3259	/* Unknown surface type; turn it into a texture. */
3260	Log(("vmsvga3dGenerateMipmaps: unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->flags, pSurface->format));
3261	rc = vmsvga3dCreateTexture(pState, pContext, cid, pSurface);
3262	AssertRCReturn(rc, rc);
3263	}
3264	else
3265	{
3266	/* @todo new filter */
3267	AssertFailed();
3268	}
3269
3270	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
3271	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3272
3273	/* Must bind texture to the current context in order to change it. */
3274	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
3275	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3276
3277	/* Generate the mip maps. */
3278	pState->ext.glGenerateMipmap(GL_TEXTURE_2D);
3279	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3280
3281	/* Restore the old texture. */
3282	glBindTexture(GL_TEXTURE_2D, activeTexture);
3283	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3284
3285	return VINF_SUCCESS;
3286	}
3287
3288	int vmsvga3dCommandPresent(PVGASTATE pThis, uint32_t sid, uint32_t cRects, SVGA3dCopyRect *pRect)
3289	{
3290	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
3291	PVMSVGA3DSURFACE pSurface;
3292	int rc = VINF_SUCCESS;
3293	PVMSVGA3DCONTEXT pContext;
3294	uint32_t cid;
3295	struct
3296	{
3297	uint32_t x;
3298	uint32_t y;
3299	uint32_t cx;
3300	uint32_t cy;
3301	} srcViewPort;
3302
3303	AssertReturn(pState, VERR_NO_MEMORY);
3304	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
3305	AssertReturn(sid < pState->cSurfaces && pState->paSurface[sid].id == sid, VERR_INVALID_PARAMETER);
3306
3307	pSurface = &pState->paSurface[sid];
3308	AssertReturn(pSurface->idAssociatedContext != SVGA3D_INVALID_ID, VERR_INTERNAL_ERROR);
3309
3310	/* @todo stricter checks for associated context */
3311	cid = pSurface->idAssociatedContext;
3312	Log(("vmsvga3dCommandPresent: sid=%x cRects=%d cid=%x\n", sid, cRects, cid));
3313	for (uint32_t i=0; i < cRects; i++)
3314	{
3315	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));
3316	}
3317
3318	if ( cid >= pState->cContexts
3319	\|\| pState->paContext[cid].id != cid)
3320	{
3321	Log(("vmsvga3dCommandPresent invalid context id!\n"));
3322	return VERR_INVALID_PARAMETER;
3323	}
3324	pContext = &pState->paContext[cid];
3325	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3326
3327	/* Source surface different size? */
3328	if (pSurface->pMipmapLevels[0].size.width != pThis->svga.uWidth \|\|
3329	pSurface->pMipmapLevels[0].size.height != pThis->svga.uHeight)
3330	{
3331	float xMultiplier = (float)pSurface->pMipmapLevels[0].size.width / (float)pThis->svga.uWidth;
3332	float yMultiplier = (float)pSurface->pMipmapLevels[0].size.height / (float)pThis->svga.uHeight;
3333
3334	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)));
3335
3336	srcViewPort.x = (uint32_t)((float)pThis->svga.viewport.x * xMultiplier);
3337	srcViewPort.y = (uint32_t)((float)pThis->svga.viewport.y * yMultiplier);
3338	srcViewPort.cx = (uint32_t)((float)pThis->svga.viewport.cx * xMultiplier);
3339	srcViewPort.cy = (uint32_t)((float)pThis->svga.viewport.cy * yMultiplier);
3340	}
3341	else
3342	{
3343	srcViewPort.x = pThis->svga.viewport.x;
3344	srcViewPort.y = pThis->svga.viewport.y;
3345	srcViewPort.cx = pThis->svga.viewport.cx;
3346	srcViewPort.cy = pThis->svga.viewport.cy;
3347	}
3348
3349	#if 1
3350	/* @note this path is slightly faster than the glBlitFrameBuffer path below. */
3351	SVGA3dCopyRect rect;
3352	uint32_t oldVShader, oldPShader;
3353	GLint oldTextureId;
3354
3355	if (cRects == 0)
3356	{
3357	rect.x = rect.y = rect.srcx = rect.srcy = 0;
3358	rect.w = pSurface->pMipmapLevels[0].size.width;
3359	rect.h = pSurface->pMipmapLevels[0].size.height;
3360	pRect = &rect;
3361	cRects = 1;
3362	}
3363
3364	//glPushAttrib(GL_ENABLE_BIT \| GL_DEPTH_BUFFER_BIT \| GL_COLOR_BUFFER_BIT \| GL_VIEWPORT_BIT);
3365
3366	#if 0
3367	glDisable(GL_CULL_FACE);
3368	glDisable(GL_BLEND);
3369	glDisable(GL_ALPHA_TEST);
3370	glDisable(GL_SCISSOR_TEST);
3371	glDisable(GL_STENCIL_TEST);
3372	glEnable(GL_DEPTH_TEST);
3373	glDepthFunc(GL_ALWAYS);
3374	glDepthMask(GL_TRUE);
3375	glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
3376	glViewport(0, 0, pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height);
3377	#endif
3378
3379	glGetIntegerv(GL_TEXTURE_BINDING_2D, &oldTextureId);
3380
3381	oldVShader = pContext->state.shidVertex;
3382	oldPShader = pContext->state.shidPixel;
3383	vmsvga3dShaderSet(pThis, cid, SVGA3D_SHADERTYPE_VS, SVGA_ID_INVALID);
3384	vmsvga3dShaderSet(pThis, cid, SVGA3D_SHADERTYPE_PS, SVGA_ID_INVALID);
3385
3386	/* Flush shader changes. */
3387	if (pContext->pShaderContext)
3388	ShaderUpdateState(pContext->pShaderContext, 0);
3389
3390	/* Activate the read and draw framebuffer objects. */
3391	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
3392	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3393	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */);
3394	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3395
3396	pState->ext.glActiveTexture(GL_TEXTURE0);
3397	glEnable(GL_TEXTURE_2D);
3398	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
3399	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3400
3401	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
3402	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
3403
3404	// glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
3405	// glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
3406
3407	/* Reset the transformation matrices. */
3408	glMatrixMode(GL_MODELVIEW);
3409	glPushMatrix();
3410	glLoadIdentity();
3411	glMatrixMode(GL_PROJECTION);
3412	glPushMatrix();
3413	glLoadIdentity();
3414	glScalef(1.0f, -1.0f, 1.0f);
3415	glOrtho(0, pThis->svga.uWidth, pThis->svga.uHeight, 0, 0.0, -1.0);
3416
3417	for (uint32_t i = 0; i < cRects; i++)
3418	{
3419	float left, right, top, bottom; /* Texture coordinates */
3420	int vertexLeft, vertexRight, vertexTop, vertexBottom;
3421
3422	pRect[i].srcx = RT_MAX(pRect[i].srcx, srcViewPort.x);
3423	pRect[i].srcy = RT_MAX(pRect[i].srcy, srcViewPort.y);
3424	pRect[i].x = RT_MAX(pRect[i].x, pThis->svga.viewport.x) - pThis->svga.viewport.x;
3425	pRect[i].y = RT_MAX(pRect[i].y, pThis->svga.viewport.y) - pThis->svga.viewport.y;
3426	pRect[i].w = pThis->svga.viewport.cx;
3427	pRect[i].h = pThis->svga.viewport.cy;
3428
3429	if ( pRect[i].x + pRect[i].w <= pThis->svga.viewport.x
3430	\|\| pThis->svga.viewport.x + pThis->svga.viewport.cx <= pRect[i].x
3431	\|\| pRect[i].y + pRect[i].h <= pThis->svga.viewport.y
3432	\|\| pThis->svga.viewport.y + pThis->svga.viewport.cy <= pRect[i].y)
3433	{
3434	/* Intersection is empty; skip */
3435	continue;
3436	}
3437
3438	left = pRect[i].srcx;
3439	right = pRect[i].srcx + pRect[i].w;
3440	top = pRect[i].srcy + pRect[i].h;
3441	bottom = pRect[i].srcy;
3442
3443	left /= pSurface->pMipmapLevels[0].size.width;
3444	right /= pSurface->pMipmapLevels[0].size.width;
3445	top /= pSurface->pMipmapLevels[0].size.height;
3446	bottom /= pSurface->pMipmapLevels[0].size.height;
3447
3448	vertexLeft = pRect[i].x;
3449	vertexRight = pRect[i].x + pRect[i].w;
3450	vertexTop = ((uint32_t)pThis->svga.uHeight >= pRect[i].y + pRect[i].h) ? pThis->svga.uHeight - pRect[i].y - pRect[i].h : 0;
3451	vertexBottom = pThis->svga.uHeight - pRect[i].y;
3452
3453	Log(("view port (%d,%d)(%d,%d)\n", srcViewPort.x, srcViewPort.y, srcViewPort.cx, srcViewPort.cy));
3454	Log(("vertex (%d,%d) (%d,%d) (%d,%d) (%d,%d)\n", vertexLeft, vertexBottom, vertexLeft, vertexTop, vertexRight, vertexTop, vertexRight, vertexBottom));
3455	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)));
3456
3457	glBegin(GL_QUADS);
3458	/* bottom left */
3459	glTexCoord2f(left, bottom);
3460	glVertex2i(vertexLeft, vertexBottom);
3461
3462	/* top left */
3463	glTexCoord2f(left, top);
3464	glVertex2i(vertexLeft, vertexTop);
3465
3466	/* top right */
3467	glTexCoord2f(right, top);
3468	glVertex2i(vertexRight, vertexTop);
3469
3470	/* bottom right */
3471	glTexCoord2f(right, bottom);
3472	glVertex2i(vertexRight, vertexBottom);
3473
3474	glEnd();
3475	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3476	}
3477
3478	/* Restore old settings. */
3479	glMatrixMode(GL_PROJECTION);
3480	glPopMatrix();
3481	glMatrixMode(GL_MODELVIEW);
3482	glPopMatrix();
3483
3484	//glPopAttrib();
3485
3486	glBindTexture(GL_TEXTURE_2D, oldTextureId);
3487	vmsvga3dShaderSet(pThis, cid, SVGA3D_SHADERTYPE_VS, oldVShader);
3488	vmsvga3dShaderSet(pThis, cid, SVGA3D_SHADERTYPE_PS, oldPShader);
3489
3490	/* Reset the frame buffer association */
3491	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3492	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3493
3494	#else
3495	/* Activate the read and draw framebuffer objects. */
3496	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
3497	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3498	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */);
3499	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3500
3501	/* Bind the source objects to the right place. */
3502	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurface->oglId.texture, 0 /* level 0 */);
3503	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3504
3505	/* Blit the surface rectangle(s) to the back buffer. */
3506	if (cRects == 0)
3507	{
3508	Log(("view port (%d,%d)(%d,%d)\n", srcViewPort.x, srcViewPort.y, srcViewPort.cx, srcViewPort.cy));
3509	pState->ext.glBlitFramebuffer(srcViewPort.x,
3510	srcViewPort.y,
3511	srcViewPort.x + srcViewPort.cx, /* exclusive. */
3512	srcViewPort.y + srcViewPort.cy, /* exclusive. (reverse to flip the image) */
3513	0,
3514	pThis->svga.viewport.cy, /* exclusive. */
3515	pThis->svga.viewport.cx, /* exclusive. */
3516	0,
3517	GL_COLOR_BUFFER_BIT,
3518	GL_LINEAR);
3519	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3520	}
3521	else
3522	{
3523	for (uint32_t i = 0; i < cRects; i++)
3524	{
3525	if ( pRect[i].x + pRect[i].w <= pThis->svga.viewport.x
3526	\|\| pThis->svga.viewport.x + pThis->svga.viewport.cx <= pRect[i].x
3527	\|\| pRect[i].y + pRect[i].h <= pThis->svga.viewport.y
3528	\|\| pThis->svga.viewport.y + pThis->svga.viewport.cy <= pRect[i].y)
3529	{
3530	/* Intersection is empty; skip */
3531	continue;
3532	}
3533
3534	pState->ext.glBlitFramebuffer(RT_MAX(pRect[i].srcx, srcViewPort.x),
3535	pSurface->pMipmapLevels[0].size.width - RT_MAX(pRect[i].srcy, srcViewPort.y), /* exclusive. (reverse to flip the image) */
3536	RT_MIN(pRect[i].srcx + pRect[i].w, srcViewPort.x + srcViewPort.cx), /* exclusive. */
3537	pSurface->pMipmapLevels[0].size.width - RT_MIN(pRect[i].srcy + pRect[i].h, srcViewPort.y + srcViewPort.cy),
3538	RT_MAX(pRect[i].x, pThis->svga.viewport.x) - pThis->svga.viewport.x,
3539	pThis->svga.uHeight - (RT_MIN(pRect[i].y + pRect[i].h, pThis->svga.viewport.y + pThis->svga.viewport.cy) - pThis->svga.viewport.y), /* exclusive. */
3540	RT_MIN(pRect[i].x + pRect[i].w, pThis->svga.viewport.x + pThis->svga.viewport.cx) - pThis->svga.viewport.x, /* exclusive. */
3541	pThis->svga.uHeight - (RT_MAX(pRect[i].y, pThis->svga.viewport.y) - pThis->svga.viewport.y),
3542	GL_COLOR_BUFFER_BIT,
3543	GL_LINEAR);
3544	}
3545	}
3546	/* Reset the frame buffer association */
3547	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3548	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3549	#endif
3550
3551	/* Flip the front and back buffers. */
3552	#ifdef RT_OS_WINDOWS
3553	BOOL ret = SwapBuffers(pContext->hdc);
3554	AssertMsg(ret, ("SwapBuffers failed with %d\n", GetLastError()));
3555	#elif defined(RT_OS_DARWIN)
3556	vmsvga3dCocoaSwapBuffers(pContext->cocoaView, pContext->cocoaContext);
3557	#else
3558	/* show the window if not already done */
3559	if (!pContext->fMapped)
3560	{
3561	XMapWindow(pState->display, pContext->window);
3562	pContext->fMapped = true;
3563	}
3564	/* now swap the buffers, i.e. display the rendering result */
3565	glXSwapBuffers(pState->display, pContext->window);
3566	#endif
3567	return VINF_SUCCESS;
3568	}
3569
3570	#ifdef RT_OS_LINUX
3571	/**
3572	* X11 event handling thread
3573	* @param ThreadSelf thread handle
3574	* @param pvUser pointer to pState structure
3575	* @returns VBox status code
3576	*/
3577	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD ThreadSelf, void *pvUser)
3578	{
3579	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3580	while (!pState->bTerminate)
3581	{
3582	while (XPending(pState->display) > 0)
3583	{
3584	XEvent event;
3585	XNextEvent(pState->display, &event);
3586
3587	switch (event.type)
3588	{
3589	default:
3590	break;
3591	}
3592	}
3593	/* sleep for 16ms to not burn too many cycles */
3594	RTThreadSleep(16);
3595	}
3596	return VINF_SUCCESS;
3597	}
3598	#endif // RT_OS_LINUX
3599
3600
3601	/**
3602	* Create a new 3d context
3603	*
3604	* @returns VBox status code.
3605	* @param pThis VGA device instance data.
3606	* @param cid Context id
3607	* @param fOtherProfile When clear, the context is created using the default
3608	* OpenGL profile. When set, it's created using the
3609	* alternative profile. The latter is only allowed if
3610	* the VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE is set.
3611	*/
3612	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid, bool fOtherProfile)
3613	{
3614	int rc;
3615	PVMSVGA3DCONTEXT pContext;
3616	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
3617
3618	AssertReturn(pState, VERR_NO_MEMORY);
3619	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3620	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
3621	AssertReturn(!fOtherProfile, VERR_INTERNAL_ERROR_3);
3622	#endif
3623
3624	Log(("vmsvga3dContextDefine id %x\n", cid));
3625	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
3626	if (pState->idTestContext == SVGA_ID_INVALID)
3627	{
3628	pState->idTestContext = 207;
3629	rc = vmsvga3dContextDefine(pThis, pState->idTestContext, false /fOtherProfile/);
3630	AssertRCReturn(rc, rc);
3631	}
3632	#endif
3633
3634	if (cid >= pState->cContexts)
3635	{
3636	pState->paContext = (PVMSVGA3DCONTEXT)RTMemRealloc(pState->paContext, sizeof(VMSVGA3DCONTEXT) * (cid + 1));
3637	AssertReturn(pState->paContext, VERR_NO_MEMORY);
3638	memset(&pState->paContext[pState->cContexts], 0, sizeof(VMSVGA3DCONTEXT) * (cid + 1 - pState->cContexts));
3639	for (uint32_t i = pState->cContexts; i < cid + 1; i++)
3640	pState->paContext[i].id = SVGA3D_INVALID_ID;
3641
3642	pState->cContexts = cid + 1;
3643	}
3644	/* If one already exists with this id, then destroy it now. */
3645	if (pState->paContext[cid].id != SVGA3D_INVALID_ID)
3646	vmsvga3dContextDestroy(pThis, cid);
3647
3648	pContext = &pState->paContext[cid];
3649	memset(pContext, 0, sizeof(*pContext));
3650	pContext->id = cid;
3651	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTexture); i++)
3652	pContext->aSidActiveTexture[i] = SVGA3D_INVALID_ID;
3653
3654	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
3655	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3656	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3657	pContext->idFramebuffer = OPENGL_INVALID_ID;
3658	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3659	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3660
3661	rc = ShaderContextCreate(&pContext->pShaderContext);
3662	AssertRCReturn(rc, rc);
3663
3664	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3665	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3666
3667	AssertReturn(pThis->svga.u64HostWindowId, VERR_INTERNAL_ERROR);
3668
3669	#ifdef RT_OS_WINDOWS
3670	/* Create a context window. */
3671	CREATESTRUCT cs;
3672	cs.lpCreateParams = NULL;
3673	cs.dwExStyle = WS_EX_NOACTIVATE \| WS_EX_NOPARENTNOTIFY \| WS_EX_TRANSPARENT;
3674	# ifdef DEBUG_GFX_WINDOW
3675	cs.lpszName = (char *)RTMemAllocZ(256);
3676	RTStrPrintf((char *)cs.lpszName, 256, "Context %d OpenGL Window", cid);
3677	# else
3678	cs.lpszName = NULL;
3679	# endif
3680	cs.lpszClass = 0;
3681	# ifdef DEBUG_GFX_WINDOW
3682	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_VISIBLE \| WS_CAPTION;
3683	# else
3684	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_DISABLED \| WS_CHILD \| WS_VISIBLE;
3685	# endif
3686	cs.x = 0;
3687	cs.y = 0;
3688	cs.cx = pThis->svga.uWidth;
3689	cs.cy = pThis->svga.uHeight;
3690	cs.hwndParent = (HWND)pThis->svga.u64HostWindowId;
3691	cs.hMenu = NULL;
3692	cs.hInstance = pState->hInstance;
3693
3694	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_CREATEWINDOW, (WPARAM)&pContext->hwnd, (LPARAM)&cs);
3695	AssertRCReturn(rc, rc);
3696
3697	pContext->hdc = GetDC(pContext->hwnd);
3698	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3699
3700	PIXELFORMATDESCRIPTOR pfd = {
3701	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3702	1, /* version number */
3703	PFD_DRAW_TO_WINDOW \| /* support window */
3704	PFD_DOUBLEBUFFER \| /* support double buffering */
3705	PFD_SUPPORT_OPENGL, /* support OpenGL */
3706	PFD_TYPE_RGBA, /* RGBA type */
3707	24, /* 24-bit color depth */
3708	0, 0, 0, 0, 0, 0, /* color bits ignored */
3709	8, /* alpha buffer */
3710	0, /* shift bit ignored */
3711	0, /* no accumulation buffer */
3712	0, 0, 0, 0, /* accum bits ignored */
3713	16, /* set depth buffer */
3714	16, /* set stencil buffer */
3715	0, /* no auxiliary buffer */
3716	PFD_MAIN_PLANE, /* main layer */
3717	0, /* reserved */
3718	0, 0, 0 /* layer masks ignored */
3719	};
3720	int pixelFormat;
3721	BOOL ret;
3722
3723	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3724	/* @todo is this really necessary?? */
3725	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3726	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3727
3728	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3729	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3730
3731	pContext->hglrc = wglCreateContext(pContext->hdc);
3732	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3733
3734	// TODO isn't this default on Linux since OpenGL 1.1?
3735	/* Find the first active context to share the display list with (necessary for sharing e.g. textures between contexts). */
3736	for (uint32_t i = 0; i < pState->cContexts; i++)
3737	{
3738	if ( pState->paContext[i].id != SVGA3D_INVALID_ID
3739	&& i != pContext->id)
3740	{
3741	Log(("Sharing display lists between cid=%d and cid=%d\n", pContext->id, i));
3742	ret = wglShareLists(pState->paContext[i].hglrc, pContext->hglrc);
3743	Assert(ret == TRUE);
3744	break;
3745	}
3746	}
3747
3748	#elif defined(RT_OS_DARWIN)
3749	pContext->fOtherProfile = fOtherProfile;
3750
3751	/* Find the first active context to share the display list with (necessary for sharing e.g. textures between contexts). */
3752	NativeNSOpenGLContextRef shareContext = NULL;
3753	for (uint32_t i = 0; i < pState->cContexts; i++)
3754	{
3755	if ( pState->paContext[i].id != SVGA3D_INVALID_ID
3756	&& i != pContext->id
3757	&& pState->paContext[i].fOtherProfile == fOtherProfile)
3758	{
3759	Log(("Sharing display lists between cid=%d and cid=%d\n", pContext->id, i));
3760	shareContext = pState->paContext[i].cocoaContext;
3761	break;
3762	}
3763	}
3764	vmsvga3dCocoaCreateContext(&pContext->cocoaContext, shareContext, fOtherProfile);
3765	NativeNSViewRef pHostView = (NativeNSViewRef)pThis->svga.u64HostWindowId;
3766	vmsvga3dCocoaCreateView(&pContext->cocoaView, pHostView);
3767
3768	#else
3769	Window hostWindow = (Window)pThis->svga.u64HostWindowId;
3770
3771	if (pState->display == NULL)
3772	{
3773	/* get an X display and make sure we have glX 1.3 */
3774	pState->display = XOpenDisplay(0);
3775	Assert(pState->display);
3776	int glxMajor, glxMinor;
3777	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3778	AssertMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3779	/* start our X event handling thread */
3780	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3781	if (RT_FAILURE(rc))
3782	{
3783	AssertMsgFailed(("%s: Async IO Thread creation for 3d window handling failed rc=%d\n", __FUNCTION__, rc));
3784	return rc;
3785	}
3786	}
3787	int attrib[] =
3788	{
3789	GLX_RGBA,
3790	GLX_RED_SIZE, 1,
3791	GLX_GREEN_SIZE, 1,
3792	GLX_BLUE_SIZE, 1,
3793	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3794	GLX_DOUBLEBUFFER,
3795	None
3796	};
3797	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3798	XSetWindowAttributes swa;
3799	swa.colormap = XCreateColormap(pState->display, XDefaultRootWindow(pState->display), vi->visual, AllocNone);
3800	swa.border_pixel = 0;
3801	swa.background_pixel = 0;
3802	swa.event_mask = StructureNotifyMask \| ExposureMask;
3803	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3804	pContext->window = XCreateWindow(pState->display, hostWindow,//XDefaultRootWindow(pState->display),//hostWindow,
3805	0, 0, pThis->svga.uWidth, pThis->svga.uHeight,
3806	0, vi->depth, InputOutput,
3807	vi->visual, flags, &swa);
3808	AssertMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3809	uint32_t cardinal_alpha = (uint32_t) (0.5 * (uint32_t)-1) ;
3810
3811	/* the window is hidden by default and only mapped when CommandPresent is executed on it */
3812
3813	/* Find the first active context to share the display list with (necessary for sharing e.g. textures between contexts). */
3814	GLXContext shareContext = NULL;
3815	for (uint32_t i = 0; i < pState->cContexts; i++)
3816	{
3817	if ( pState->paContext[i].id != SVGA3D_INVALID_ID
3818	&& i != pContext->id)
3819	{
3820	Log(("Sharing display lists between cid=%d and cid=%d\n", pContext->id, i));
3821	shareContext = pState->paContext[i].glxContext;
3822	break;
3823	}
3824	}
3825
3826	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3827	AssertMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3828	#endif
3829
3830	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3831
3832	/* NULL during the first PowerOn call. */
3833	if (pState->ext.glGenFramebuffers)
3834	{
3835	/* Create a framebuffer object for this context. */
3836	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3837	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3838
3839	/* Bind the object to the framebuffer target. */
3840	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3841	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3842
3843	/* Create read and draw framebuffer objects for this context. */
3844	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3845	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3846
3847	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3848	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3849
3850	}
3851	#if 0
3852	/* @todo move to shader lib!!! */
3853	/* Clear the screen */
3854	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3855
3856	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3857	glClearIndex(0);
3858	glClearDepth(1);
3859	glClearStencil(0xffff);
3860	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3861	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3862	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3863	if (pState->ext.glProvokingVertex)
3864	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3865	/* @todo move to shader lib!!! */
3866	#endif
3867	return VINF_SUCCESS;
3868	}
3869
3870	/**
3871	* Destroy an existing 3d context
3872	*
3873	* @returns VBox status code.
3874	* @param pThis VGA device instance data.
3875	* @param cid Context id
3876	*/
3877	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3878	{
3879	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
3880	AssertReturn(pState, VERR_NO_MEMORY);
3881
3882	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3883
3884	if ( cid < pState->cContexts
3885	&& pState->paContext[cid].id == cid)
3886	{
3887	PVMSVGA3DCONTEXT pContext = &pState->paContext[cid];
3888
3889	Log(("vmsvga3dContextDestroy id %x\n", cid));
3890
3891	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3892
3893	/* Destroy all leftover pixel shaders. */
3894	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3895	{
3896	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3897	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3898	}
3899	if (pContext->paPixelShader)
3900	RTMemFree(pContext->paPixelShader);
3901
3902	/* Destroy all leftover vertex shaders. */
3903	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3904	{
3905	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3906	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3907	}
3908	if (pContext->paVertexShader)
3909	RTMemFree(pContext->paVertexShader);
3910
3911	if (pContext->state.paVertexShaderConst)
3912	RTMemFree(pContext->state.paVertexShaderConst);
3913	if (pContext->state.paPixelShaderConst)
3914	RTMemFree(pContext->state.paPixelShaderConst);
3915
3916	if (pContext->pShaderContext)
3917	{
3918	int rc = ShaderContextDestroy(pContext->pShaderContext);
3919	AssertRC(rc);
3920	}
3921
3922	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3923	{
3924	/* Unbind the object from the framebuffer target. */
3925	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3926	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3927	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3928	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3929
3930	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3931	{
3932	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3933	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3934	}
3935	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3936	{
3937	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3938	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3939	}
3940	}
3941	#ifdef RT_OS_WINDOWS
3942	wglMakeCurrent(NULL, NULL);
3943	wglDeleteContext(pContext->hglrc);
3944	ReleaseDC(pContext->hwnd, pContext->hdc);
3945
3946	/* Destroy the window we've created. */
3947	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3948	AssertRC(rc);
3949	#elif defined(RT_OS_DARWIN)
3950	vmsvga3dCocoaDestroyView(pContext->cocoaView);
3951	vmsvga3dCocoaDestroyContext(pContext->cocoaContext);
3952	#elif defined(RT_OS_LINUX)
3953	glXMakeCurrent(pState->display, None, NULL);
3954	glXDestroyContext(pState->display, pContext->glxContext);
3955	XDestroyWindow(pState->display, pContext->window);
3956	#endif
3957
3958	memset(pContext, 0, sizeof(*pContext));
3959	pContext->id = SVGA3D_INVALID_ID;
3960
3961	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3962	}
3963	else
3964	AssertFailed();
3965
3966	return VINF_SUCCESS;
3967	}
3968
3969	/* Handle resize */
3970	int vmsvga3dChangeMode(PVGASTATE pThis)
3971	{
3972	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
3973	AssertReturn(pState, VERR_NO_MEMORY);
3974
3975	/* Resize all active contexts. */
3976	for (uint32_t i = 0; i < pState->cContexts; i++)
3977	{
3978	PVMSVGA3DCONTEXT pContext = &pState->paContext[i];
3979	uint32_t cid = pContext->id;
3980
3981	if (cid != SVGA3D_INVALID_ID)
3982	{
3983	#ifdef RT_OS_WINDOWS
3984	CREATESTRUCT cs;
3985
3986	memset(&cs, 0, sizeof(cs));
3987	cs.cx = pThis->svga.uWidth;
3988	cs.cy = pThis->svga.uHeight;
3989
3990	/* Resize the window. */
3991	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_RESIZEWINDOW, (WPARAM)pContext->hwnd, (LPARAM)&cs);
3992	AssertRC(rc);
3993	#elif defined(RT_OS_DARWIN)
3994	vmsvga3dCocoaViewSetSize(pContext->cocoaView, pThis->svga.uWidth, pThis->svga.uHeight);
3995	#elif defined(RT_OS_LINUX)
3996	XWindowChanges wc;
3997	wc.width = pThis->svga.uWidth;
3998	wc.height = pThis->svga.uHeight;
3999	XConfigureWindow(pState->display, pContext->window, CWWidth \| CWHeight, &wc);
4000	#endif
4001	}
4002	}
4003	return VINF_SUCCESS;
4004	}
4005
4006
4007	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
4008	{
4009	PVMSVGA3DCONTEXT pContext;
4010	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
4011	AssertReturn(pState, VERR_NO_MEMORY);
4012	bool fModelViewChanged = false;
4013
4014	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
4015
4016	if ( cid >= pState->cContexts
4017	\|\| pState->paContext[cid].id != cid)
4018	{
4019	Log(("vmsvga3dSetTransform invalid context id!\n"));
4020	return VERR_INVALID_PARAMETER;
4021	}
4022	pContext = &pState->paContext[cid];
4023	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4024
4025	/* Save this matrix for vm state save/restore. */
4026	pContext->state.aTransformState[type].fValid = true;
4027	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
4028	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
4029
4030	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)));
4031	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)));
4032	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)));
4033	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)));
4034
4035	switch (type)
4036	{
4037	case SVGA3D_TRANSFORM_VIEW:
4038	/* View * World = Model View */
4039	glMatrixMode(GL_MODELVIEW);
4040	glLoadMatrixf(matrix);
4041	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
4042	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
4043	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4044	fModelViewChanged = true;
4045	break;
4046
4047	case SVGA3D_TRANSFORM_PROJECTION:
4048	{
4049	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix);
4050	AssertRCReturn(rc, rc);
4051	break;
4052	}
4053
4054	case SVGA3D_TRANSFORM_TEXTURE0:
4055	glMatrixMode(GL_TEXTURE);
4056	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4057	glLoadMatrixf(matrix);
4058	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4059	break;
4060
4061	case SVGA3D_TRANSFORM_TEXTURE1:
4062	case SVGA3D_TRANSFORM_TEXTURE2:
4063	case SVGA3D_TRANSFORM_TEXTURE3:
4064	case SVGA3D_TRANSFORM_TEXTURE4:
4065	case SVGA3D_TRANSFORM_TEXTURE5:
4066	case SVGA3D_TRANSFORM_TEXTURE6:
4067	case SVGA3D_TRANSFORM_TEXTURE7:
4068	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
4069	return VERR_INVALID_PARAMETER;
4070
4071	case SVGA3D_TRANSFORM_WORLD:
4072	/* View * World = Model View */
4073	glMatrixMode(GL_MODELVIEW);
4074	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
4075	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
4076	else
4077	glLoadIdentity();
4078	glMultMatrixf(matrix);
4079	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4080	fModelViewChanged = true;
4081	break;
4082
4083	case SVGA3D_TRANSFORM_WORLD1:
4084	case SVGA3D_TRANSFORM_WORLD2:
4085	case SVGA3D_TRANSFORM_WORLD3:
4086	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
4087	return VERR_INVALID_PARAMETER;
4088
4089	default:
4090	Log(("vmsvga3dSetTransform: unknown type!!\n"));
4091	return VERR_INVALID_PARAMETER;
4092	}
4093
4094	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
4095	if (fModelViewChanged)
4096	{
4097	/* Reprogram the clip planes. */
4098	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
4099	{
4100	if (pContext->state.aClipPlane[j].fValid == true)
4101	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
4102	}
4103
4104	/* Reprogram the light data. */
4105	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
4106	{
4107	if (pContext->state.aLightData[j].fValidData == true)
4108	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
4109	}
4110	}
4111
4112	return VINF_SUCCESS;
4113	}
4114
4115	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
4116	{
4117	PVMSVGA3DCONTEXT pContext;
4118	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
4119	AssertReturn(pState, VERR_NO_MEMORY);
4120
4121	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
4122
4123	if ( cid >= pState->cContexts
4124	\|\| pState->paContext[cid].id != cid)
4125	{
4126	Log(("vmsvga3dSetZRange invalid context id!\n"));
4127	return VERR_INVALID_PARAMETER;
4128	}
4129	pContext = &pState->paContext[cid];
4130	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4131
4132	pContext->state.zRange = zRange;
4133	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
4134
4135	if (zRange.min < -1.0)
4136	zRange.min = -1.0;
4137	if (zRange.max > 1.0)
4138	zRange.max = 1.0;
4139
4140	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
4141	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4142	return VINF_SUCCESS;
4143	}
4144
4145	/**
4146	* Convert SVGA blend op value to its OpenGL equivalent
4147	*/
4148	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
4149	{
4150	switch (blendOp)
4151	{
4152	case SVGA3D_BLENDOP_ZERO:
4153	return GL_ZERO;
4154	case SVGA3D_BLENDOP_ONE:
4155	return GL_ONE;
4156	case SVGA3D_BLENDOP_SRCCOLOR:
4157	return GL_SRC_COLOR;
4158	case SVGA3D_BLENDOP_INVSRCCOLOR:
4159	return GL_ONE_MINUS_SRC_COLOR;
4160	case SVGA3D_BLENDOP_SRCALPHA:
4161	return GL_SRC_ALPHA;
4162	case SVGA3D_BLENDOP_INVSRCALPHA:
4163	return GL_ONE_MINUS_SRC_ALPHA;
4164	case SVGA3D_BLENDOP_DESTALPHA:
4165	return GL_DST_ALPHA;
4166	case SVGA3D_BLENDOP_INVDESTALPHA:
4167	return GL_ONE_MINUS_DST_ALPHA;
4168	case SVGA3D_BLENDOP_DESTCOLOR:
4169	return GL_DST_COLOR;
4170	case SVGA3D_BLENDOP_INVDESTCOLOR:
4171	return GL_ONE_MINUS_DST_COLOR;
4172	case SVGA3D_BLENDOP_SRCALPHASAT:
4173	return GL_SRC_ALPHA_SATURATE;
4174	case SVGA3D_BLENDOP_BLENDFACTOR:
4175	return GL_CONSTANT_ALPHA; /* @todo correct?? */
4176	case SVGA3D_BLENDOP_INVBLENDFACTOR:
4177	return GL_ONE_MINUS_CONSTANT_ALPHA; /* @todo correct?? */
4178	default:
4179	AssertFailed();
4180	return GL_ONE;
4181	}
4182	}
4183
4184	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
4185	{
4186	switch (blendEq)
4187	{
4188	case SVGA3D_BLENDEQ_ADD:
4189	return GL_FUNC_ADD;
4190	case SVGA3D_BLENDEQ_SUBTRACT:
4191	return GL_FUNC_SUBTRACT;
4192	case SVGA3D_BLENDEQ_REVSUBTRACT:
4193	return GL_FUNC_REVERSE_SUBTRACT;
4194	case SVGA3D_BLENDEQ_MINIMUM:
4195	return GL_MIN;
4196	case SVGA3D_BLENDEQ_MAXIMUM:
4197	return GL_MAX;
4198	default:
4199	AssertFailed();
4200	return GL_FUNC_ADD;
4201	}
4202	}
4203
4204	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
4205	{
4206	switch (cmpFunc)
4207	{
4208	case SVGA3D_CMP_NEVER:
4209	return GL_NEVER;
4210	case SVGA3D_CMP_LESS:
4211	return GL_LESS;
4212	case SVGA3D_CMP_EQUAL:
4213	return GL_EQUAL;
4214	case SVGA3D_CMP_LESSEQUAL:
4215	return GL_LEQUAL;
4216	case SVGA3D_CMP_GREATER:
4217	return GL_GREATER;
4218	case SVGA3D_CMP_NOTEQUAL:
4219	return GL_NOTEQUAL;
4220	case SVGA3D_CMP_GREATEREQUAL:
4221	return GL_GEQUAL;
4222	case SVGA3D_CMP_ALWAYS:
4223	return GL_ALWAYS;
4224	default:
4225	AssertFailed();
4226	return GL_LESS;
4227	}
4228	}
4229
4230	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
4231	{
4232	switch (stencilOp)
4233	{
4234	case SVGA3D_STENCILOP_KEEP:
4235	return GL_KEEP;
4236	case SVGA3D_STENCILOP_ZERO:
4237	return GL_ZERO;
4238	case SVGA3D_STENCILOP_REPLACE:
4239	return GL_REPLACE;
4240	case SVGA3D_STENCILOP_INCRSAT:
4241	return GL_INCR_WRAP;
4242	case SVGA3D_STENCILOP_DECRSAT:
4243	return GL_DECR_WRAP;
4244	case SVGA3D_STENCILOP_INVERT:
4245	return GL_INVERT;
4246	case SVGA3D_STENCILOP_INCR:
4247	return GL_INCR;
4248	case SVGA3D_STENCILOP_DECR:
4249	return GL_DECR;
4250	default:
4251	AssertFailed();
4252	return GL_KEEP;
4253	}
4254	}
4255
4256	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
4257	{
4258	uint32_t val;
4259	PVMSVGA3DCONTEXT pContext;
4260	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
4261	AssertReturn(pState, VERR_NO_MEMORY);
4262
4263	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
4264
4265	if ( cid >= pState->cContexts
4266	\|\| pState->paContext[cid].id != cid)
4267	{
4268	Log(("vmsvga3dSetRenderState invalid context id!\n"));
4269	return VERR_INVALID_PARAMETER;
4270	}
4271	pContext = &pState->paContext[cid];
4272	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4273
4274	for (unsigned i = 0; i < cRenderStates; i++)
4275	{
4276	GLenum enableCap = ~0U;
4277	Log(("vmsvga3dSetRenderState: cid=%d state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
4278	/* Save the render state for vm state saving. */
4279	if (pRenderState[i].state < SVGA3D_RS_MAX)
4280	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
4281
4282	switch (pRenderState[i].state)
4283	{
4284	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
4285	enableCap = GL_DEPTH_TEST;
4286	val = pRenderState[i].uintValue;
4287	break;
4288
4289	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
4290	glDepthMask(!!pRenderState[i].uintValue);
4291	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4292	break;
4293
4294	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
4295	enableCap = GL_ALPHA_TEST;
4296	val = pRenderState[i].uintValue;
4297	break;
4298
4299	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
4300	enableCap = GL_DITHER;
4301	val = pRenderState[i].uintValue;
4302	break;
4303
4304	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
4305	enableCap = GL_FOG;
4306	val = pRenderState[i].uintValue;
4307	break;
4308
4309	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
4310	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4311	break;
4312
4313	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
4314	enableCap = GL_LIGHTING;
4315	val = pRenderState[i].uintValue;
4316	break;
4317
4318	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
4319	/* not applicable */
4320	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4321	break;
4322
4323	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
4324	enableCap = GL_POINT_SPRITE_ARB;
4325	val = pRenderState[i].uintValue;
4326	break;
4327
4328	case SVGA3D_RS_POINTSIZE: /* float */
4329	/* @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
4330	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
4331	pRenderState[i].floatValue = pState->caps.flPointSize[0];
4332	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
4333	pRenderState[i].floatValue = pState->caps.flPointSize[1];
4334
4335	glPointSize(pRenderState[i].floatValue);
4336	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4337	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4338	break;
4339
4340	case SVGA3D_RS_POINTSIZEMIN: /* float */
4341	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
4342	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4343	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4344	break;
4345
4346	case SVGA3D_RS_POINTSIZEMAX: /* float */
4347	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
4348	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4349	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4350	break;
4351
4352	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
4353	case SVGA3D_RS_POINTSCALE_A: /* float */
4354	case SVGA3D_RS_POINTSCALE_B: /* float */
4355	case SVGA3D_RS_POINTSCALE_C: /* float */
4356	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4357	break;
4358
4359	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
4360	{
4361	GLfloat color[4]; /* red, green, blue, alpha */
4362
4363	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4364
4365	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
4366	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4367	break;
4368	}
4369
4370	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
4371	{
4372	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
4373	for (uint32_t j = 0; j <= 5; j++)
4374	{
4375	if (pRenderState[i].uintValue & RT_BIT(j))
4376	glEnable(GL_CLIP_PLANE0 + j);
4377	else
4378	glDisable(GL_CLIP_PLANE0 + j);
4379	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4380	}
4381	break;
4382	}
4383
4384	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
4385	{
4386	GLfloat color[4]; /* red, green, blue, alpha */
4387
4388	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4389
4390	glFogfv(GL_FOG_COLOR, color);
4391	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4392	break;
4393	}
4394
4395	case SVGA3D_RS_FOGSTART: /* float */
4396	glFogf(GL_FOG_START, pRenderState[i].floatValue);
4397	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4398	break;
4399
4400	case SVGA3D_RS_FOGEND: /* float */
4401	glFogf(GL_FOG_END, pRenderState[i].floatValue);
4402	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4403	break;
4404
4405	case SVGA3D_RS_FOGDENSITY: /* float */
4406	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
4407	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4408	break;
4409
4410	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
4411	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
4412	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4413	break;
4414
4415	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
4416	{
4417	SVGA3dFogMode mode;
4418	mode.uintValue = pRenderState[i].uintValue;
4419
4420	enableCap = GL_FOG_MODE;
4421	switch (mode.s.function)
4422	{
4423	case SVGA3D_FOGFUNC_EXP:
4424	val = GL_EXP;
4425	break;
4426	case SVGA3D_FOGFUNC_EXP2:
4427	val = GL_EXP2;
4428	break;
4429	case SVGA3D_FOGFUNC_LINEAR:
4430	val = GL_LINEAR;
4431	break;
4432	default:
4433	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
4434	break;
4435	}
4436
4437	/* @todo how to switch between vertex and pixel fog modes??? */
4438	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
4439	#if 0
4440	/* The fog type determines the render state. */
4441	switch (mode.s.type)
4442	{
4443	case SVGA3D_FOGTYPE_VERTEX:
4444	renderState = D3DRS_FOGVERTEXMODE;
4445	break;
4446	case SVGA3D_FOGTYPE_PIXEL:
4447	renderState = D3DRS_FOGTABLEMODE;
4448	break;
4449	default:
4450	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
4451	break;
4452	}
4453	#endif
4454
4455	/* Set the fog base to depth or range. */
4456	switch (mode.s.base)
4457	{
4458	case SVGA3D_FOGBASE_DEPTHBASED:
4459	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
4460	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4461	break;
4462	case SVGA3D_FOGBASE_RANGEBASED:
4463	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
4464	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4465	break;
4466	default:
4467	/* ignore */
4468	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
4469	break;
4470	}
4471	break;
4472	}
4473
4474	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
4475	{
4476	SVGA3dFillMode mode;
4477
4478	mode.uintValue = pRenderState[i].uintValue;
4479
4480	switch (mode.s.mode)
4481	{
4482	case SVGA3D_FILLMODE_POINT:
4483	val = GL_POINT;
4484	break;
4485	case SVGA3D_FILLMODE_LINE:
4486	val = GL_LINE;
4487	break;
4488	case SVGA3D_FILLMODE_FILL:
4489	val = GL_FILL;
4490	break;
4491	default:
4492	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
4493	break;
4494	}
4495	/* @note only front and back faces */
4496	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
4497	glPolygonMode(GL_FRONT_AND_BACK, val);
4498	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4499	break;
4500	}
4501
4502	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
4503	switch (pRenderState[i].uintValue)
4504	{
4505	case SVGA3D_SHADEMODE_FLAT:
4506	val = GL_FLAT;
4507	break;
4508
4509	case SVGA3D_SHADEMODE_SMOOTH:
4510	val = GL_SMOOTH;
4511	break;
4512
4513	default:
4514	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4515	break;
4516	}
4517
4518	glShadeModel(val);
4519	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4520	break;
4521
4522	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
4523	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
4524	/* @todo */
4525	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
4526	/*
4527	renderState = D3DRS_LINEPATTERN;
4528	val = pRenderState[i].uintValue;
4529	*/
4530	break;
4531
4532	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
4533	enableCap = GL_LINE_SMOOTH;
4534	val = pRenderState[i].uintValue;
4535	break;
4536
4537	case SVGA3D_RS_LINEWIDTH: /* float */
4538	glLineWidth(pRenderState[i].floatValue);
4539	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4540	break;
4541
4542	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4543	{
4544	/* Refresh the blending state based on the new enable setting. */
4545	SVGA3dRenderState renderstate[2];
4546
4547	renderstate[0].state = SVGA3D_RS_SRCBLEND;
4548	renderstate[0].uintValue = pContext->state.aRenderState[SVGA3D_RS_SRCBLEND].uintValue;
4549	renderstate[1].state = SVGA3D_RS_BLENDEQUATION;
4550	renderstate[1].uintValue = pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue;
4551
4552	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
4553	AssertRCReturn(rc, rc);
4554
4555	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
4556	continue; /* ignore if blend is already enabled */
4557	/* no break */
4558	}
4559
4560	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
4561	enableCap = GL_BLEND;
4562	val = pRenderState[i].uintValue;
4563	break;
4564
4565	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4566	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4567	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4568	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4569	{
4570	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4571	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4572
4573	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4574	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4575	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4576	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4577	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4578	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4579	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4580	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4581
4582	switch (pRenderState[i].state)
4583	{
4584	case SVGA3D_RS_SRCBLEND:
4585	srcRGB = blendop;
4586	break;
4587	case SVGA3D_RS_DSTBLEND:
4588	dstRGB = blendop;
4589	break;
4590	case SVGA3D_RS_SRCBLENDALPHA:
4591	srcAlpha = blendop;
4592	break;
4593	case SVGA3D_RS_DSTBLENDALPHA:
4594	dstAlpha = blendop;
4595	break;
4596	default:
4597	/* not possible; shut up gcc */
4598	AssertFailed();
4599	break;
4600	}
4601
4602	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4603	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4604	else
4605	glBlendFunc(srcRGB, dstRGB);
4606	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4607	break;
4608	}
4609
4610	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4611	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4612	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4613	pState->ext.glBlendEquationSeparate(vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue),
4614	vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue));
4615	else
4616	{
4617	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4618	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4619	#else
4620	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4621	#endif
4622	}
4623	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4624	break;
4625
4626	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4627	{
4628	GLfloat red, green, blue, alpha;
4629
4630	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4631
4632	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4633	glBlendColor(red, green, blue, alpha);
4634	#else
4635	pState->ext.glBlendColor(red, green, blue, alpha);
4636	#endif
4637	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4638	break;
4639	}
4640
4641	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4642	{
4643	GLenum mode = GL_BACK; /* default for OpenGL */
4644
4645	switch (pRenderState[i].uintValue)
4646	{
4647	case SVGA3D_FACE_NONE:
4648	break;
4649	case SVGA3D_FACE_FRONT:
4650	mode = GL_FRONT;
4651	break;
4652	case SVGA3D_FACE_BACK:
4653	mode = GL_BACK;
4654	break;
4655	case SVGA3D_FACE_FRONT_BACK:
4656	mode = GL_FRONT_AND_BACK;
4657	break;
4658	default:
4659	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4660	break;
4661	}
4662	enableCap = GL_CULL_FACE;
4663	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4664	{
4665	glCullFace(mode);
4666	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4667	val = 1;
4668	}
4669	else
4670	val = 0;
4671	break;
4672	}
4673
4674	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4675	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4676	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4677	break;
4678
4679	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4680	{
4681	GLclampf ref;
4682
4683	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4684	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4685	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4686	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4687	break;
4688	}
4689
4690	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4691	{
4692	GLint func;
4693
4694	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4695	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4696	glAlphaFunc(func, pRenderState[i].floatValue);
4697	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4698	break;
4699	}
4700
4701	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4702	enableCap = GL_STENCIL_TEST;
4703	val = pRenderState[i].uintValue;
4704	break;
4705
4706	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4707	case SVGA3D_RS_STENCILREF: /* uint32_t */
4708	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4709	{
4710	GLint func, ref;
4711	GLuint mask;
4712
4713	glGetIntegerv(GL_STENCIL_FUNC, &func);
4714	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4715	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4716	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4717	glGetIntegerv(GL_STENCIL_REF, &ref);
4718	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4719
4720	switch (pRenderState[i].state)
4721	{
4722	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4723	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4724	break;
4725
4726	case SVGA3D_RS_STENCILREF: /* uint32_t */
4727	ref = pRenderState[i].uintValue;
4728	break;
4729
4730	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4731	mask = pRenderState[i].uintValue;
4732	break;
4733
4734	default:
4735	/* not possible; shut up gcc */
4736	AssertFailed();
4737	break;
4738	}
4739
4740	glStencilFunc(func, ref, mask);
4741	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4742	break;
4743	}
4744
4745	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4746	glStencilMask(pRenderState[i].uintValue);
4747	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4748	break;
4749
4750	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4751	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4752	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4753	{
4754	GLint sfail, dpfail, dppass;
4755	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4756
4757	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4758	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4759	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4760	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4761	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4762	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4763
4764	switch (pRenderState[i].state)
4765	{
4766	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4767	sfail = stencilop;
4768	break;
4769	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4770	dpfail = stencilop;
4771	break;
4772	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4773	dppass = stencilop;
4774	break;
4775	default:
4776	/* not possible; shut up gcc */
4777	AssertFailed();
4778	break;
4779	}
4780	glStencilOp(sfail, dpfail, dppass);
4781	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4782	break;
4783	}
4784
4785	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4786	/* @note GL_EXT_stencil_two_side required! */
4787	if (pState->ext.fEXT_stencil_two_side)
4788	{
4789	enableCap = GL_STENCIL_TEST_TWO_SIDE_EXT;
4790	val = pRenderState[i].uintValue;
4791	}
4792	else
4793	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_STENCILENABLE2SIDED\n"));
4794	break;
4795
4796	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4797	{
4798	/* @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4799	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4800	*/
4801	GLint ref;
4802	GLuint mask;
4803
4804	glGetIntegerv(GL_STENCIL_BACK_VALUE_MASK, (GLint *)&mask);
4805	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4806	glGetIntegerv(GL_STENCIL_BACK_REF, &ref);
4807	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4808
4809	pState->ext.glStencilFuncSeparate(GL_BACK, vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref, mask);
4810	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4811	break;
4812	}
4813
4814	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4815	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4816	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4817	{
4818	/* @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4819	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4820	*/
4821	GLint sfail, dpfail, dppass;
4822	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4823
4824	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4825	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4826	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4827	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4828	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4829	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4830
4831	switch (pRenderState[i].state)
4832	{
4833	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4834	sfail = stencilop;
4835	break;
4836	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4837	dpfail = stencilop;
4838	break;
4839	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4840	dppass = stencilop;
4841	break;
4842	default:
4843	/* not possible; shut up gcc */
4844	AssertFailed();
4845	break;
4846	}
4847	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4848	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4849	break;
4850	}
4851
4852	case SVGA3D_RS_ZBIAS: /* float */
4853	/* @todo unknown meaning; depth bias is not identical
4854	renderState = D3DRS_DEPTHBIAS;
4855	val = pRenderState[i].uintValue;
4856	*/
4857	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4858	break;
4859
4860	case SVGA3D_RS_DEPTHBIAS: /* float */
4861	{
4862	GLfloat factor;
4863
4864	/* @todo not sure if the d3d & ogl definitions are identical. */
4865
4866	/* Do not change the factor part. */
4867	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4868	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4869
4870	glPolygonOffset(factor, pRenderState[i].floatValue);
4871	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4872	break;
4873	}
4874
4875	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4876	{
4877	GLfloat units;
4878
4879	/* @todo not sure if the d3d & ogl definitions are identical. */
4880
4881	/* Do not change the factor part. */
4882	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4883	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4884
4885	glPolygonOffset(pRenderState[i].floatValue, units);
4886	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4887	break;
4888	}
4889
4890	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4891	{
4892	GLboolean red, green, blue, alpha;
4893	SVGA3dColorMask mask;
4894
4895	mask.uintValue = pRenderState[i].uintValue;
4896
4897	red = mask.s.red;
4898	green = mask.s.green;
4899	blue = mask.s.blue;
4900	alpha = mask.s.alpha;
4901
4902	glColorMask(red, green, blue, alpha);
4903	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4904	break;
4905	}
4906
4907	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4908	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4909	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4910	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4911	break;
4912
4913	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4914	enableCap = GL_SCISSOR_TEST;
4915	val = pRenderState[i].uintValue;
4916	break;
4917
4918	#if 0
4919	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4920	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4921	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4922	val = pRenderState[i].uintValue;
4923	break;
4924
4925	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4926	renderState = D3DRS_SPECULARMATERIALSOURCE;
4927	val = pRenderState[i].uintValue;
4928	break;
4929
4930	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4931	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4932	val = pRenderState[i].uintValue;
4933	break;
4934
4935	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4936	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4937	val = pRenderState[i].uintValue;
4938	break;
4939	#endif
4940
4941	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4942	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4943	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4944	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4945	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4946	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4947	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4948	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4949	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4950	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4951	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4952	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4953	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4954	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4955	break;
4956
4957	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4958	case SVGA3D_RS_TWEENFACTOR: /* float */
4959	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4960	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4961	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4962	break;
4963
4964	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4965	enableCap = GL_MULTISAMPLE;
4966	val = pRenderState[i].uintValue;
4967	break;
4968
4969	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4970	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4971	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4972	break;
4973
4974	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4975	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4976	/* @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4977	/*
4978	renderState = D3DRS_COORDINATETYPE;
4979	val = pRenderState[i].uintValue;
4980	*/
4981	break;
4982
4983	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4984	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4985	/* Invert the selected mode because of y-inversion (?) */
4986	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4987	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4988	break;
4989
4990	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4991	//AssertFailed();
4992	/*
4993	D3DRS_SRGBWRITEENABLE ??
4994	renderState = D3DRS_OUTPUTGAMMA;
4995	val = pRenderState[i].uintValue;
4996	*/
4997	break;
4998
4999	#if 0
5000
5001	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
5002	//AssertFailed();
5003	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
5004	val = pRenderState[i].uintValue;
5005	break;
5006
5007	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
5008	renderState = D3DRS_TEXTUREFACTOR;
5009	val = pRenderState[i].uintValue;
5010	break;
5011
5012	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
5013	renderState = D3DRS_LOCALVIEWER;
5014	val = pRenderState[i].uintValue;
5015	break;
5016
5017	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
5018	AssertFailed();
5019	/*
5020	renderState = D3DRS_ZVISIBLE;
5021	val = pRenderState[i].uintValue;
5022	*/
5023	break;
5024
5025	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
5026	renderState = D3DRS_CLIPPING;
5027	val = pRenderState[i].uintValue;
5028	break;
5029
5030	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
5031	glTexParameter GL_TEXTURE_WRAP_S
5032	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
5033	renderState = D3DRS_WRAP0;
5034	val = pRenderState[i].uintValue;
5035	break;
5036
5037	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
5038	glTexParameter GL_TEXTURE_WRAP_T
5039	renderState = D3DRS_WRAP1;
5040	val = pRenderState[i].uintValue;
5041	break;
5042
5043	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
5044	glTexParameter GL_TEXTURE_WRAP_R
5045	renderState = D3DRS_WRAP2;
5046	val = pRenderState[i].uintValue;
5047	break;
5048
5049
5050	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
5051	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
5052	val = pRenderState[i].uintValue;
5053	break;
5054
5055
5056	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
5057	renderState = D3DRS_BLENDOPALPHA;
5058	val = pRenderState[i].uintValue;
5059	break;
5060
5061	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
5062	AssertFailed();
5063	/*
5064	renderState = D3DRS_TRANSPARENCYANTIALIAS;
5065	val = pRenderState[i].uintValue;
5066	*/
5067	break;
5068
5069	#endif
5070	default:
5071	AssertFailed();
5072	break;
5073	}
5074
5075	if (enableCap != ~0U)
5076	{
5077	if (val)
5078	glEnable(enableCap);
5079	else
5080	glDisable(enableCap);
5081	}
5082	}
5083
5084	return VINF_SUCCESS;
5085	}
5086
5087	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
5088	{
5089	PVMSVGA3DCONTEXT pContext;
5090	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5091	PVMSVGA3DSURFACE pRenderTarget;
5092
5093	AssertReturn(pState, VERR_NO_MEMORY);
5094	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
5095	AssertReturn(target.face == 0, VERR_INVALID_PARAMETER);
5096	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
5097
5098	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
5099
5100	if ( cid >= pState->cContexts
5101	\|\| pState->paContext[cid].id != cid)
5102	{
5103	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
5104	return VERR_INVALID_PARAMETER;
5105	}
5106	pContext = &pState->paContext[cid];
5107	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5108
5109	/* Save for vm state save/restore. */
5110	pContext->state.aRenderTargets[type] = target.sid;
5111
5112	if (target.sid == SVGA3D_INVALID_ID)
5113	{
5114	/* Disable render target. */
5115	switch (type)
5116	{
5117	case SVGA3D_RT_DEPTH:
5118	case SVGA3D_RT_STENCIL:
5119	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
5120	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5121	break;
5122
5123	case SVGA3D_RT_COLOR0:
5124	case SVGA3D_RT_COLOR1:
5125	case SVGA3D_RT_COLOR2:
5126	case SVGA3D_RT_COLOR3:
5127	case SVGA3D_RT_COLOR4:
5128	case SVGA3D_RT_COLOR5:
5129	case SVGA3D_RT_COLOR6:
5130	case SVGA3D_RT_COLOR7:
5131	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
5132	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
5133	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5134	break;
5135
5136	default:
5137	AssertFailedReturn(VERR_INVALID_PARAMETER);
5138	}
5139	return VINF_SUCCESS;
5140	}
5141
5142	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5143	AssertReturn(target.sid < pState->cSurfaces && pState->paSurface[target.sid].id == target.sid, VERR_INVALID_PARAMETER);
5144	pRenderTarget = &pState->paSurface[target.sid];
5145
5146	switch (type)
5147	{
5148	case SVGA3D_RT_DEPTH:
5149	case SVGA3D_RT_STENCIL:
5150	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
5151	{
5152	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->flags, pRenderTarget->internalFormatGL));
5153	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
5154	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5155
5156	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
5157	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5158
5159	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
5160	pRenderTarget->internalFormatGL,
5161	pRenderTarget->pMipmapLevels[0].size.width,
5162	pRenderTarget->pMipmapLevels[0].size.height);
5163	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5164
5165	pRenderTarget->idAssociatedContext = cid;
5166	}
5167	else
5168	{
5169	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
5170	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5171	}
5172	Assert(pRenderTarget->idAssociatedContext == cid);
5173	Assert(!pRenderTarget->fDirty);
5174	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
5175
5176	pRenderTarget->flags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
5177
5178	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
5179	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5180	break;
5181
5182	case SVGA3D_RT_COLOR0:
5183	case SVGA3D_RT_COLOR1:
5184	case SVGA3D_RT_COLOR2:
5185	case SVGA3D_RT_COLOR3:
5186	case SVGA3D_RT_COLOR4:
5187	case SVGA3D_RT_COLOR5:
5188	case SVGA3D_RT_COLOR6:
5189	case SVGA3D_RT_COLOR7:
5190	{
5191	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
5192	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
5193	{
5194	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));
5195	int rc = vmsvga3dCreateTexture(pState, pContext, cid, pRenderTarget);
5196	AssertRCReturn(rc, rc);
5197	}
5198
5199	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
5200	Assert(!pRenderTarget->fDirty);
5201
5202	pRenderTarget->flags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
5203
5204	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
5205	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5206
5207	pContext->sidRenderTarget = target.sid;
5208
5209	#ifdef DEBUG
5210	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
5211	if (status != GL_FRAMEBUFFER_COMPLETE)
5212	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
5213	#endif
5214	/* @todo use glDrawBuffers too? */
5215	break;
5216	}
5217
5218	default:
5219	AssertFailedReturn(VERR_INVALID_PARAMETER);
5220	}
5221
5222	return VINF_SUCCESS;
5223	}
5224
5225	#if 0
5226	/**
5227	* Convert SVGA texture combiner value to its D3D equivalent
5228	*/
5229	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
5230	{
5231	switch (value)
5232	{
5233	case SVGA3D_TC_DISABLE:
5234	return D3DTOP_DISABLE;
5235	case SVGA3D_TC_SELECTARG1:
5236	return D3DTOP_SELECTARG1;
5237	case SVGA3D_TC_SELECTARG2:
5238	return D3DTOP_SELECTARG2;
5239	case SVGA3D_TC_MODULATE:
5240	return D3DTOP_MODULATE;
5241	case SVGA3D_TC_ADD:
5242	return D3DTOP_ADD;
5243	case SVGA3D_TC_ADDSIGNED:
5244	return D3DTOP_ADDSIGNED;
5245	case SVGA3D_TC_SUBTRACT:
5246	return D3DTOP_SUBTRACT;
5247	case SVGA3D_TC_BLENDTEXTUREALPHA:
5248	return D3DTOP_BLENDTEXTUREALPHA;
5249	case SVGA3D_TC_BLENDDIFFUSEALPHA:
5250	return D3DTOP_BLENDDIFFUSEALPHA;
5251	case SVGA3D_TC_BLENDCURRENTALPHA:
5252	return D3DTOP_BLENDCURRENTALPHA;
5253	case SVGA3D_TC_BLENDFACTORALPHA:
5254	return D3DTOP_BLENDFACTORALPHA;
5255	case SVGA3D_TC_MODULATE2X:
5256	return D3DTOP_MODULATE2X;
5257	case SVGA3D_TC_MODULATE4X:
5258	return D3DTOP_MODULATE4X;
5259	case SVGA3D_TC_DSDT:
5260	AssertFailed(); /* @todo ??? */
5261	return D3DTOP_DISABLE;
5262	case SVGA3D_TC_DOTPRODUCT3:
5263	return D3DTOP_DOTPRODUCT3;
5264	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
5265	return D3DTOP_BLENDTEXTUREALPHAPM;
5266	case SVGA3D_TC_ADDSIGNED2X:
5267	return D3DTOP_ADDSIGNED2X;
5268	case SVGA3D_TC_ADDSMOOTH:
5269	return D3DTOP_ADDSMOOTH;
5270	case SVGA3D_TC_PREMODULATE:
5271	return D3DTOP_PREMODULATE;
5272	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
5273	return D3DTOP_MODULATEALPHA_ADDCOLOR;
5274	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
5275	return D3DTOP_MODULATECOLOR_ADDALPHA;
5276	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
5277	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
5278	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
5279	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
5280	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
5281	return D3DTOP_BUMPENVMAPLUMINANCE;
5282	case SVGA3D_TC_MULTIPLYADD:
5283	return D3DTOP_MULTIPLYADD;
5284	case SVGA3D_TC_LERP:
5285	return D3DTOP_LERP;
5286	default:
5287	AssertFailed();
5288	return D3DTOP_DISABLE;
5289	}
5290	}
5291
5292	/**
5293	* Convert SVGA texture arg data value to its D3D equivalent
5294	*/
5295	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
5296	{
5297	switch (value)
5298	{
5299	case SVGA3D_TA_CONSTANT:
5300	return D3DTA_CONSTANT;
5301	case SVGA3D_TA_PREVIOUS:
5302	return D3DTA_CURRENT; /* current = previous */
5303	case SVGA3D_TA_DIFFUSE:
5304	return D3DTA_DIFFUSE;
5305	case SVGA3D_TA_TEXTURE:
5306	return D3DTA_TEXTURE;
5307	case SVGA3D_TA_SPECULAR:
5308	return D3DTA_SPECULAR;
5309	default:
5310	AssertFailed();
5311	return 0;
5312	}
5313	}
5314
5315	/**
5316	* Convert SVGA texture transform flag value to its D3D equivalent
5317	*/
5318	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
5319	{
5320	switch (value)
5321	{
5322	case SVGA3D_TEX_TRANSFORM_OFF:
5323	return D3DTTFF_DISABLE;
5324	case SVGA3D_TEX_TRANSFORM_S:
5325	return D3DTTFF_COUNT1; /* @todo correct? */
5326	case SVGA3D_TEX_TRANSFORM_T:
5327	return D3DTTFF_COUNT2; /* @todo correct? */
5328	case SVGA3D_TEX_TRANSFORM_R:
5329	return D3DTTFF_COUNT3; /* @todo correct? */
5330	case SVGA3D_TEX_TRANSFORM_Q:
5331	return D3DTTFF_COUNT4; /* @todo correct? */
5332	case SVGA3D_TEX_PROJECTED:
5333	return D3DTTFF_PROJECTED;
5334	default:
5335	AssertFailed();
5336	return 0;
5337	}
5338	}
5339	#endif
5340
5341	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
5342	{
5343	switch (value)
5344	{
5345	case SVGA3D_TEX_ADDRESS_WRAP:
5346	return GL_REPEAT;
5347	case SVGA3D_TEX_ADDRESS_MIRROR:
5348	return GL_MIRRORED_REPEAT;
5349	case SVGA3D_TEX_ADDRESS_CLAMP:
5350	return GL_CLAMP_TO_EDGE;
5351	case SVGA3D_TEX_ADDRESS_BORDER:
5352	return GL_CLAMP_TO_BORDER;
5353	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
5354	AssertFailed();
5355	return GL_CLAMP_TO_EDGE_SGIS; /* @todo correct? */
5356
5357	case SVGA3D_TEX_ADDRESS_EDGE:
5358	case SVGA3D_TEX_ADDRESS_INVALID:
5359	default:
5360	AssertFailed();
5361	return GL_REPEAT; /* default */
5362	}
5363	}
5364
5365	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
5366	{
5367	switch (value)
5368	{
5369	case SVGA3D_TEX_FILTER_NONE:
5370	case SVGA3D_TEX_FILTER_LINEAR:
5371	return GL_LINEAR;
5372	case SVGA3D_TEX_FILTER_NEAREST:
5373	return GL_NEAREST;
5374	case SVGA3D_TEX_FILTER_ANISOTROPIC:
5375	/* @todo */
5376	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
5377	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
5378	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
5379	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
5380	default:
5381	AssertFailed();
5382	return GL_LINEAR; /* default */
5383	}
5384	}
5385
5386	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
5387	{
5388	/* flip the red and blue bytes */
5389	uint8_t blue = value & 0xff;
5390	uint8_t red = (value >> 16) & 0xff;
5391	return (value & 0xff00ff00) \| red \| (blue << 16);
5392	}
5393
5394	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
5395	{
5396	GLenum val;
5397	GLenum currentStage = ~0L;
5398	PVMSVGA3DCONTEXT pContext;
5399	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5400	AssertReturn(pState, VERR_NO_MEMORY);
5401
5402	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
5403
5404	if ( cid >= pState->cContexts
5405	\|\| pState->paContext[cid].id != cid)
5406	{
5407	Log(("vmsvga3dSetTextureState invalid context id!\n"));
5408	return VERR_INVALID_PARAMETER;
5409	}
5410	pContext = &pState->paContext[cid];
5411	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5412
5413	for (unsigned i = 0; i < cTextureStates; i++)
5414	{
5415	GLenum textureType = ~0U;
5416	GLenum samplerType = ~0U;
5417
5418	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));
5419	/* Record the texture state for vm state saving. */
5420	if ( pTextureState[i].stage < SVGA3D_MAX_TEXTURE_STAGE
5421	&& pTextureState[i].name < SVGA3D_TS_MAX)
5422	{
5423	pContext->state.aTextureState[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
5424	}
5425
5426	/* Active the right texture unit for subsequent texture state changes. */
5427	if (pTextureState[i].stage != currentStage)
5428	{
5429	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
5430	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5431	currentStage = pTextureState[i].stage;
5432	}
5433
5434	switch (pTextureState[i].name)
5435	{
5436	case SVGA3D_TS_BUMPENVMAT00: /* float */
5437	case SVGA3D_TS_BUMPENVMAT01: /* float */
5438	case SVGA3D_TS_BUMPENVMAT10: /* float */
5439	case SVGA3D_TS_BUMPENVMAT11: /* float */
5440	case SVGA3D_TS_BUMPENVLSCALE: /* float */
5441	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
5442	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
5443	break;
5444
5445	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
5446	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
5447	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
5448	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
5449	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
5450	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
5451	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
5452	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
5453	/* @todo; not used by MesaGL */
5454	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
5455	break;
5456	#if 0
5457
5458	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
5459	textureType = D3DTSS_TEXCOORDINDEX;
5460	val = pTextureState[i].value;
5461	break;
5462
5463	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
5464	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
5465	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
5466	break;
5467	#endif
5468
5469	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
5470	if (pTextureState[i].value == SVGA3D_INVALID_ID)
5471	{
5472	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x\n", pTextureState[i].stage, pTextureState[i].value));
5473
5474	pContext->aSidActiveTexture[currentStage] = SVGA3D_INVALID_ID;
5475	/* Unselect the currently associated texture. */
5476	glBindTexture(GL_TEXTURE_2D, 0);
5477	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5478	/* Necessary for the fixed pipeline. */
5479	glDisable(GL_TEXTURE_2D);
5480	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5481	}
5482	else
5483	{
5484	uint32_t sid = pTextureState[i].value;
5485
5486	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5487	AssertReturn(sid < pState->cSurfaces && pState->paSurface[sid].id == sid, VERR_INVALID_PARAMETER);
5488
5489	PVMSVGA3DSURFACE pSurface = &pState->paSurface[sid];
5490
5491	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));
5492
5493	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5494	{
5495	Assert(pSurface->idAssociatedContext == SVGA3D_INVALID_ID);
5496	Log(("CreateTexture (%d,%d) level=%d\n", pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height, pSurface->faces[0].numMipLevels));
5497	int rc = vmsvga3dCreateTexture(pState, pContext, cid, pSurface);
5498	AssertRCReturn(rc, rc);
5499	}
5500
5501	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
5502	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5503
5504	/* Necessary for the fixed pipeline. */
5505	glEnable(GL_TEXTURE_2D);
5506	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5507
5508	if (pContext->aSidActiveTexture[currentStage] != sid)
5509	{
5510	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5511	for (uint32_t iStage = 0; iStage < SVGA3D_MAX_TEXTURE_STAGE; iStage++)
5512	{
5513	for (uint32_t j = 0; j < SVGA3D_TS_MAX; j++)
5514	{
5515	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureState[iStage][j];
5516
5517	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5518	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5519	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
5520	}
5521	}
5522	}
5523	pContext->aSidActiveTexture[currentStage] = sid;
5524	}
5525	/* Finished; continue with the next one. */
5526	continue;
5527
5528	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5529	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5530	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5531	break;
5532
5533	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5534	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5535	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5536	break;
5537
5538	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5539	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5540	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5541	break;
5542
5543	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5544	//AssertFailed(); /* @todo */
5545	//samplerType = D3DSAMP_MIPFILTER;
5546	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5547	break;
5548
5549	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5550	textureType = GL_TEXTURE_MAG_FILTER;
5551	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5552	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5553	break;
5554
5555	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5556	textureType = GL_TEXTURE_MIN_FILTER;
5557	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5558	break;
5559
5560	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5561	{
5562	GLfloat color[4]; /* red, green, blue, alpha */
5563
5564	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5565
5566	glTexParameterfv(GL_TEXTURE_2D /* @todo flexible type /, GL_TEXTURE_BORDER_COLOR, color); / Identical; default 0.0 identical too */
5567	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5568	break;
5569	}
5570
5571	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5572	glTexParameterf(GL_TEXTURE_2D /* @todo flexible type /, GL_TEXTURE_LOD_BIAS, pTextureState[i].value); / Identical; default 0.0 identical too */
5573	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5574	break;
5575
5576	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5577	textureType = GL_TEXTURE_MAX_LEVEL;
5578	val = pTextureState[i].value; /* Identical?? */
5579	break;
5580
5581	#if 0
5582	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5583	samplerType = D3DSAMP_MAXANISOTROPY;
5584	val = pTextureState[i].value; /* Identical?? */
5585	break;
5586
5587	case SVGA3D_TS_GAMMA: /* float */
5588	samplerType = D3DSAMP_SRGBTEXTURE;
5589	/* Boolean in D3D */
5590	if (pTextureState[i].floatValue == 1.0f)
5591	val = FALSE;
5592	else
5593	val = TRUE;
5594	break;
5595	#endif
5596	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5597	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5598	AssertFailed();
5599	break;
5600
5601	default:
5602	//AssertFailed();
5603	break;
5604	}
5605
5606	if (textureType != ~0U)
5607	{
5608	glTexParameteri(GL_TEXTURE_2D /* @todo flexible type */, textureType, val);
5609	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5610	}
5611	}
5612
5613	return VINF_SUCCESS;
5614	}
5615
5616	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5617	{
5618	PVMSVGA3DCONTEXT pContext;
5619	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5620	AssertReturn(pState, VERR_NO_MEMORY);
5621	GLenum oglFace;
5622
5623	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
5624
5625	if ( cid >= pState->cContexts
5626	\|\| pState->paContext[cid].id != cid)
5627	{
5628	Log(("vmsvga3dSetMaterial invalid context id!\n"));
5629	return VERR_INVALID_PARAMETER;
5630	}
5631	pContext = &pState->paContext[cid];
5632	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5633
5634	switch (face)
5635	{
5636	case SVGA3D_FACE_NONE:
5637	case SVGA3D_FACE_FRONT:
5638	oglFace = GL_FRONT;
5639	break;
5640
5641	case SVGA3D_FACE_BACK:
5642	oglFace = GL_BACK;
5643	break;
5644
5645	case SVGA3D_FACE_FRONT_BACK:
5646	oglFace = GL_FRONT_AND_BACK;
5647	break;
5648
5649	default:
5650	AssertFailedReturn(VERR_INVALID_PARAMETER);
5651	}
5652
5653	/* Save for vm state save/restore. */
5654	pContext->state.aMaterial[face].fValid = true;
5655	pContext->state.aMaterial[face].material = *pMaterial;
5656	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5657
5658	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5659	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5660	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5661	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5662	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5663	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5664
5665	return VINF_SUCCESS;
5666	}
5667
5668	/* @todo Move into separate library as we are using logic from Wine here. */
5669	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5670	{
5671	PVMSVGA3DCONTEXT pContext;
5672	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5673	AssertReturn(pState, VERR_NO_MEMORY);
5674	float QuadAttenuation;
5675
5676	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5677
5678	if ( cid >= pState->cContexts
5679	\|\| pState->paContext[cid].id != cid)
5680	{
5681	Log(("vmsvga3dSetLightData invalid context id!\n"));
5682	return VERR_INVALID_PARAMETER;
5683	}
5684	pContext = &pState->paContext[cid];
5685	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5686
5687	/* Store for vm state save/restore */
5688	if (index < SVGA3D_MAX_LIGHTS)
5689	{
5690	pContext->state.aLightData[index].fValidData = true;
5691	pContext->state.aLightData[index].data = *pData;
5692	}
5693	else
5694	AssertFailed();
5695
5696	if ( pData->attenuation0 < 0.0f
5697	\|\| pData->attenuation1 < 0.0f
5698	\|\| pData->attenuation2 < 0.0f)
5699	{
5700	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5701	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5702	}
5703
5704	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5705	glMatrixMode(GL_MODELVIEW);
5706	glPushMatrix();
5707	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5708
5709	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5710	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5711	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5712
5713	if (pData->range * pData->range >= FLT_MIN)
5714	QuadAttenuation = 1.4f / (pData->range * pData->range);
5715	else
5716	QuadAttenuation = 0.0f;
5717
5718	switch (pData->type)
5719	{
5720	case SVGA3D_LIGHTTYPE_POINT:
5721	{
5722	GLfloat position[4];
5723
5724	position[0] = pData->position[0];
5725	position[1] = pData->position[1];
5726	position[2] = pData->position[2];
5727	position[3] = 1.0f;
5728
5729	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5730	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5731
5732	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5733	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5734
5735	/* Attenuation - Are these right? guessing... */
5736	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5737	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5738
5739	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5740	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5741
5742	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5743	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5744
5745	/* @todo range */
5746	break;
5747	}
5748
5749	case SVGA3D_LIGHTTYPE_SPOT1:
5750	{
5751	GLfloat exponent;
5752	GLfloat position[4];
5753	const GLfloat pi = 4.0f * atanf(1.0f);
5754
5755	position[0] = pData->position[0];
5756	position[1] = pData->position[1];
5757	position[2] = pData->position[2];
5758	position[3] = 1.0f;
5759
5760	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5761	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5762
5763	position[0] = pData->direction[0];
5764	position[1] = pData->direction[1];
5765	position[2] = pData->direction[2];
5766	position[3] = 1.0f;
5767
5768	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5769	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5770
5771	/*
5772	* opengl-ish and d3d-ish spot lights use too different models for the
5773	* light "intensity" as a function of the angle towards the main light direction,
5774	* so we only can approximate very roughly.
5775	* however spot lights are rather rarely used in games (if ever used at all).
5776	* furthermore if still used, probably nobody pays attention to such details.
5777	*/
5778	if (pData->falloff == 0)
5779	{
5780	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5781	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5782	* will always be 1.0 for both of them, and we don't have to care for the
5783	* rest of the rather complex calculation
5784	*/
5785	exponent = 0.0f;
5786	}
5787	else
5788	{
5789	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5790	if (rho < 0.0001f)
5791	rho = 0.0001f;
5792	exponent = -0.3f/log(cos(rho/2));
5793	}
5794	if (exponent > 128.0f)
5795	exponent = 128.0f;
5796
5797	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5798	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5799
5800	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5801	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5802
5803	/* Attenuation - Are these right? guessing... */
5804	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5805	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5806
5807	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5808	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5809
5810	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5811	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5812
5813	/* @todo range */
5814	break;
5815	}
5816
5817	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5818	{
5819	GLfloat position[4];
5820
5821	position[0] = -pData->direction[0];
5822	position[1] = -pData->direction[1];
5823	position[2] = -pData->direction[2];
5824	position[3] = 0.0f;
5825
5826	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5827	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5828
5829	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5830	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5831
5832	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5833	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5834	break;
5835	}
5836
5837	case SVGA3D_LIGHTTYPE_SPOT2:
5838	default:
5839	Log(("Unsupported light type!!\n"));
5840	return VERR_INVALID_PARAMETER;
5841	}
5842
5843	/* Restore the modelview matrix */
5844	glPopMatrix();
5845
5846	return VINF_SUCCESS;
5847	}
5848
5849	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5850	{
5851	PVMSVGA3DCONTEXT pContext;
5852	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5853	AssertReturn(pState, VERR_NO_MEMORY);
5854
5855	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
5856
5857	if ( cid >= pState->cContexts
5858	\|\| pState->paContext[cid].id != cid)
5859	{
5860	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
5861	return VERR_INVALID_PARAMETER;
5862	}
5863	pContext = &pState->paContext[cid];
5864	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5865
5866	/* Store for vm state save/restore */
5867	if (index < SVGA3D_MAX_LIGHTS)
5868	pContext->state.aLightData[index].fEnabled = !!enabled;
5869	else
5870	AssertFailed();
5871
5872	if (enabled)
5873	{
5874	/* Load the default settings if none have been set yet. */
5875	if (!pContext->state.aLightData[index].fValidData)
5876	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5877	glEnable(GL_LIGHT0 + index);
5878	}
5879	else
5880	glDisable(GL_LIGHT0 + index);
5881
5882	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5883	return VINF_SUCCESS;
5884	}
5885
5886	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5887	{
5888	PVMSVGA3DCONTEXT pContext;
5889	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5890	AssertReturn(pState, VERR_NO_MEMORY);
5891
5892	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5893
5894	if ( cid >= pState->cContexts
5895	\|\| pState->paContext[cid].id != cid)
5896	{
5897	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5898	return VERR_INVALID_PARAMETER;
5899	}
5900	pContext = &pState->paContext[cid];
5901	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5902
5903	/* Save for vm state save/restore. */
5904	pContext->state.RectViewPort = *pRect;
5905	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5906
5907	/* @todo y-inversion for partial viewport coordinates? */
5908	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5909	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5910
5911	/* Reset the projection matrix as that relies on the viewport setting. */
5912	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5913	{
5914	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5915	}
5916	else
5917	{
5918	float matrix[16];
5919
5920	/* identity matrix if no matrix set. */
5921	memset(matrix, 0, sizeof(matrix));
5922	matrix[0] = 1.0;
5923	matrix[5] = 1.0;
5924	matrix[10] = 1.0;
5925	matrix[15] = 1.0;
5926	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5927	}
5928
5929	return VINF_SUCCESS;
5930	}
5931
5932	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5933	{
5934	PVMSVGA3DCONTEXT pContext;
5935	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5936	AssertReturn(pState, VERR_NO_MEMORY);
5937	double oglPlane[4];
5938
5939	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)));
5940	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5941
5942	if ( cid >= pState->cContexts
5943	\|\| pState->paContext[cid].id != cid)
5944	{
5945	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5946	return VERR_INVALID_PARAMETER;
5947	}
5948	pContext = &pState->paContext[cid];
5949	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5950
5951	/* Store for vm state save/restore. */
5952	pContext->state.aClipPlane[index].fValid = true;
5953	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5954
5955	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5956	oglPlane[0] = (double)plane[0];
5957	oglPlane[1] = (double)plane[1];
5958	oglPlane[2] = (double)plane[2];
5959	oglPlane[3] = (double)plane[3];
5960
5961	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5962	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5963
5964	return VINF_SUCCESS;
5965	}
5966
5967	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5968	{
5969	PVMSVGA3DCONTEXT pContext;
5970	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5971	AssertReturn(pState, VERR_NO_MEMORY);
5972
5973	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5974
5975	if ( cid >= pState->cContexts
5976	\|\| pState->paContext[cid].id != cid)
5977	{
5978	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5979	return VERR_INVALID_PARAMETER;
5980	}
5981	pContext = &pState->paContext[cid];
5982	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5983
5984	/* Store for vm state save/restore. */
5985	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5986	pContext->state.RectScissor = *pRect;
5987
5988	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5989	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5990
5991	return VINF_SUCCESS;
5992	}
5993
5994	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5995	{
5996	/* Convert byte color components to float (0-1.0) */
5997	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5998	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5999	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
6000	*pBlue = (GLfloat)(color & 0xff) / 255.0;
6001	}
6002
6003	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil, uint32_t cRects, SVGA3dRect *pRect)
6004	{
6005	GLbitfield mask = 0;
6006	PVMSVGA3DCONTEXT pContext;
6007	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6008	AssertReturn(pState, VERR_NO_MEMORY);
6009	GLboolean fDepthWriteEnabled = GL_FALSE;
6010
6011	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));
6012
6013	if ( cid >= pState->cContexts
6014	\|\| pState->paContext[cid].id != cid)
6015	{
6016	Log(("vmsvga3dCommandClear invalid context id!\n"));
6017	return VERR_INVALID_PARAMETER;
6018	}
6019	pContext = &pState->paContext[cid];
6020	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6021
6022	if (clearFlag & SVGA3D_CLEAR_COLOR)
6023	{
6024	GLfloat red, green, blue, alpha;
6025
6026	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
6027
6028	/* Set the color clear value. */
6029	glClearColor(red, green, blue, alpha);
6030
6031	mask \|= GL_COLOR_BUFFER_BIT;
6032	}
6033	if (clearFlag & SVGA3D_CLEAR_STENCIL)
6034	{
6035	/* @todo possibly the same problem as with glDepthMask */
6036	glClearStencil(stencil);
6037	mask \|= GL_STENCIL_BUFFER_BIT;
6038	}
6039	if (clearFlag & SVGA3D_CLEAR_DEPTH)
6040	{
6041	glClearDepth((GLdouble)depth);
6042	mask \|= GL_DEPTH_BUFFER_BIT;
6043
6044	/* glClear will not clear the depth buffer if writing is disabled. */
6045	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
6046	if (fDepthWriteEnabled == GL_FALSE)
6047	glDepthMask(GL_TRUE);
6048	}
6049
6050	if (cRects)
6051	{
6052	/* Save the current scissor test bit and scissor box. */
6053	glPushAttrib(GL_SCISSOR_BIT);
6054	glEnable(GL_SCISSOR_TEST);
6055	for (unsigned i=0; i < cRects; i++)
6056	{
6057	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));
6058	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
6059	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6060	glClear(mask);
6061	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6062	}
6063	/* Restore the old scissor test bit and box */
6064	glPopAttrib();
6065	}
6066	else
6067	{
6068	glClear(mask);
6069	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6070	}
6071
6072	/* Restore depth write state. */
6073	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
6074	&& fDepthWriteEnabled == GL_FALSE)
6075	glDepthMask(GL_FALSE);
6076
6077	return VINF_SUCCESS;
6078	}
6079
6080	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
6081	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
6082	{
6083	normalized = GL_FALSE;
6084	switch (identity.type)
6085	{
6086	case SVGA3D_DECLTYPE_FLOAT1:
6087	size = 1;
6088	type = GL_FLOAT;
6089	break;
6090	case SVGA3D_DECLTYPE_FLOAT2:
6091	size = 2;
6092	type = GL_FLOAT;
6093	break;
6094	case SVGA3D_DECLTYPE_FLOAT3:
6095	size = 3;
6096	type = GL_FLOAT;
6097	break;
6098	case SVGA3D_DECLTYPE_FLOAT4:
6099	size = 4;
6100	type = GL_FLOAT;
6101	break;
6102
6103	case SVGA3D_DECLTYPE_D3DCOLOR:
6104	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
6105	type = GL_UNSIGNED_BYTE;
6106	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
6107	break;
6108
6109	case SVGA3D_DECLTYPE_UBYTE4N:
6110	normalized = GL_TRUE;
6111	/* no break */
6112	case SVGA3D_DECLTYPE_UBYTE4:
6113	size = 4;
6114	type = GL_UNSIGNED_BYTE;
6115	break;
6116
6117	case SVGA3D_DECLTYPE_SHORT2N:
6118	normalized = GL_TRUE;
6119	/* no break */
6120	case SVGA3D_DECLTYPE_SHORT2:
6121	size = 2;
6122	type = GL_SHORT;
6123	break;
6124
6125	case SVGA3D_DECLTYPE_SHORT4N:
6126	normalized = GL_TRUE;
6127	/* no break */
6128	case SVGA3D_DECLTYPE_SHORT4:
6129	size = 4;
6130	type = GL_SHORT;
6131	break;
6132
6133	case SVGA3D_DECLTYPE_USHORT4N:
6134	normalized = GL_TRUE;
6135	size = 4;
6136	type = GL_UNSIGNED_SHORT;
6137	break;
6138
6139	case SVGA3D_DECLTYPE_USHORT2N:
6140	normalized = GL_TRUE;
6141	size = 2;
6142	type = GL_UNSIGNED_SHORT;
6143	break;
6144
6145	case SVGA3D_DECLTYPE_UDEC3:
6146	size = 3;
6147	type = GL_UNSIGNED_INT_2_10_10_10_REV; /* @todo correct? */
6148	break;
6149
6150	case SVGA3D_DECLTYPE_DEC3N:
6151	normalized = true;
6152	size = 3;
6153	type = GL_INT_2_10_10_10_REV; /* @todo correct? */
6154	break;
6155
6156	case SVGA3D_DECLTYPE_FLOAT16_2:
6157	size = 2;
6158	type = GL_HALF_FLOAT;
6159	break;
6160	case SVGA3D_DECLTYPE_FLOAT16_4:
6161	size = 4;
6162	type = GL_HALF_FLOAT;
6163	break;
6164	default:
6165	AssertFailedReturn(VERR_INVALID_PARAMETER);
6166	}
6167
6168	//pVertexElement->Method = identity.method;
6169	//pVertexElement->Usage = identity.usage;
6170
6171	return VINF_SUCCESS;
6172	}
6173
6174	/* Convert VMWare primitive type to its OpenGL equivalent. */
6175	/* Calculate the vertex count based on the primitive type and nr of primitives. */
6176	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
6177	{
6178	switch (PrimitiveType)
6179	{
6180	case SVGA3D_PRIMITIVE_TRIANGLELIST:
6181	*pMode = GL_TRIANGLES;
6182	pcVertices = cPrimitiveCount 3;
6183	break;
6184	case SVGA3D_PRIMITIVE_POINTLIST:
6185	*pMode = GL_POINTS;
6186	*pcVertices = cPrimitiveCount;
6187	break;
6188	case SVGA3D_PRIMITIVE_LINELIST:
6189	*pMode = GL_LINES;
6190	pcVertices = cPrimitiveCount 2;
6191	break;
6192	case SVGA3D_PRIMITIVE_LINESTRIP:
6193	*pMode = GL_LINE_STRIP;
6194	*pcVertices = cPrimitiveCount + 1;
6195	break;
6196	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
6197	*pMode = GL_TRIANGLE_STRIP;
6198	*pcVertices = cPrimitiveCount + 2;
6199	break;
6200	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
6201	*pMode = GL_TRIANGLE_FAN;
6202	*pcVertices = cPrimitiveCount + 2;
6203	break;
6204	default:
6205	return VERR_INVALID_PARAMETER;
6206	}
6207	return VINF_SUCCESS;
6208	}
6209
6210	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6211	{
6212	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
6213	PVMSVGA3DSURFACE pVertexSurface;
6214
6215	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
6216	AssertReturn(sidVertex < pState->cSurfaces && pState->paSurface[sidVertex].id == sidVertex, VERR_INVALID_PARAMETER);
6217
6218	pVertexSurface = &pState->paSurface[sidVertex];
6219	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
6220
6221	/* Create and/or bind the vertex buffer. */
6222	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
6223	{
6224	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
6225	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
6226	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6227
6228	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
6229	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6230
6231	Assert(pVertexSurface->fDirty);
6232	/* @todo rethink usage dynamic/static */
6233	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6234	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6235
6236	pVertexSurface->pMipmapLevels[0].fDirty = false;
6237	pVertexSurface->fDirty = false;
6238
6239	pVertexSurface->flags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
6240	}
6241	else
6242	{
6243	Assert(pVertexSurface->fDirty == false);
6244	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
6245	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6246	}
6247	pVertexSurface->idAssociatedContext = pContext->id;
6248
6249	/* Setup the vertex declarations. */
6250	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6251	{
6252	GLint size;
6253	GLenum type;
6254	GLboolean normalized;
6255	GLuint index = iVertexDeclBase + iVertex;
6256
6257	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));
6258
6259	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
6260	AssertRCReturn(rc, rc);
6261
6262	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6263	{
6264	/* Use numbered vertex arrays when shaders are active. */
6265	pState->ext.glEnableVertexAttribArray(index);
6266	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6267	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
6268	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6269	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6270	/* case SVGA3D_DECLUSAGE_COLOR: @todo color component order not identical!! test GL_BGRA!! */
6271	}
6272	else
6273	{
6274	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6275	switch (pVertexDecl[iVertex].identity.usage)
6276	{
6277	case SVGA3D_DECLUSAGE_POSITION:
6278	glEnableClientState(GL_VERTEX_ARRAY);
6279	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6280	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
6281	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6282	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6283	break;
6284	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6285	AssertFailed();
6286	break;
6287	case SVGA3D_DECLUSAGE_BLENDINDICES:
6288	AssertFailed();
6289	break;
6290	case SVGA3D_DECLUSAGE_NORMAL:
6291	glEnableClientState(GL_NORMAL_ARRAY);
6292	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6293	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
6294	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6295	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6296	break;
6297	case SVGA3D_DECLUSAGE_PSIZE:
6298	AssertFailed();
6299	break;
6300	case SVGA3D_DECLUSAGE_TEXCOORD:
6301	/* Specify the affected texture unit. */
6302	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6303	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6304	#else
6305	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6306	#endif
6307	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
6308	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6309	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
6310	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6311	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6312	break;
6313	case SVGA3D_DECLUSAGE_TANGENT:
6314	AssertFailed();
6315	break;
6316	case SVGA3D_DECLUSAGE_BINORMAL:
6317	AssertFailed();
6318	break;
6319	case SVGA3D_DECLUSAGE_TESSFACTOR:
6320	AssertFailed();
6321	break;
6322	case SVGA3D_DECLUSAGE_POSITIONT:
6323	AssertFailed(); /* see position_transformed in Wine */
6324	break;
6325	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
6326	glEnableClientState(GL_COLOR_ARRAY);
6327	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6328	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
6329	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6330	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6331	break;
6332	case SVGA3D_DECLUSAGE_FOG:
6333	glEnableClientState(GL_FOG_COORD_ARRAY);
6334	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6335	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
6336	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6337	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6338	break;
6339	case SVGA3D_DECLUSAGE_DEPTH:
6340	AssertFailed();
6341	break;
6342	case SVGA3D_DECLUSAGE_SAMPLE:
6343	AssertFailed();
6344	break;
6345	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6346	}
6347	}
6348
6349	#ifdef LOG_ENABLED
6350	if (pVertexDecl[iVertex].array.stride == 0)
6351	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
6352	#endif
6353	}
6354
6355	return VINF_SUCCESS;
6356	}
6357
6358	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6359	{
6360	/* Setup the vertex declarations. */
6361	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6362	{
6363	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6364	{
6365	/* Use numbered vertex arrays when shaders are active. */
6366	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
6367	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6368	}
6369	else
6370	{
6371	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6372	switch (pVertexDecl[iVertex].identity.usage)
6373	{
6374	case SVGA3D_DECLUSAGE_POSITION:
6375	glDisableClientState(GL_VERTEX_ARRAY);
6376	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6377	break;
6378	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6379	break;
6380	case SVGA3D_DECLUSAGE_BLENDINDICES:
6381	break;
6382	case SVGA3D_DECLUSAGE_NORMAL:
6383	glDisableClientState(GL_NORMAL_ARRAY);
6384	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6385	break;
6386	case SVGA3D_DECLUSAGE_PSIZE:
6387	break;
6388	case SVGA3D_DECLUSAGE_TEXCOORD:
6389	/* Specify the affected texture unit. */
6390	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6391	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6392	#else
6393	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6394	#endif
6395	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
6396	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6397	break;
6398	case SVGA3D_DECLUSAGE_TANGENT:
6399	break;
6400	case SVGA3D_DECLUSAGE_BINORMAL:
6401	break;
6402	case SVGA3D_DECLUSAGE_TESSFACTOR:
6403	break;
6404	case SVGA3D_DECLUSAGE_POSITIONT:
6405	break;
6406	case SVGA3D_DECLUSAGE_COLOR: /* @todo color component order not identical!! */
6407	glDisableClientState(GL_COLOR_ARRAY);
6408	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6409	break;
6410	case SVGA3D_DECLUSAGE_FOG:
6411	glDisableClientState(GL_FOG_COORD_ARRAY);
6412	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6413	break;
6414	case SVGA3D_DECLUSAGE_DEPTH:
6415	break;
6416	case SVGA3D_DECLUSAGE_SAMPLE:
6417	break;
6418	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6419	}
6420	}
6421	}
6422	/* Unbind the vertex buffer after usage. */
6423	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
6424	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6425	return VINF_SUCCESS;
6426	}
6427
6428	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl pVertexDecl, uint32_t numRanges, SVGA3dPrimitiveRange pRange, uint32_t cVertexDivisor, SVGA3dVertexDivisor *pVertexDivisor)
6429	{
6430	PVMSVGA3DCONTEXT pContext;
6431	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6432	AssertReturn(pState, VERR_INTERNAL_ERROR);
6433	int rc = VERR_NOT_IMPLEMENTED;
6434	uint32_t iCurrentVertex;
6435
6436	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
6437
6438	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
6439	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
6440	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
6441	/* @todo */
6442	Assert(!cVertexDivisor);
6443
6444	if ( cid >= pState->cContexts
6445	\|\| pState->paContext[cid].id != cid)
6446	{
6447	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
6448	return VERR_INVALID_PARAMETER;
6449	}
6450	pContext = &pState->paContext[cid];
6451	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6452
6453	/* Flush any shader changes. */
6454	if (pContext->pShaderContext)
6455	{
6456	uint32_t rtHeight = 0;
6457
6458	if (pContext->sidRenderTarget != SVGA_ID_INVALID)
6459	{
6460	PVMSVGA3DSURFACE pRenderTarget = &pState->paSurface[pContext->sidRenderTarget];
6461	rtHeight = pRenderTarget->pMipmapLevels[0].size.height;
6462	}
6463
6464	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6465	}
6466
6467	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6468	iCurrentVertex = 0;
6469	while (iCurrentVertex < numVertexDecls)
6470	{
6471	uint32_t sidVertex = SVGA_ID_INVALID;
6472	uint32_t iVertex;
6473
6474	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6475	{
6476	if ( sidVertex != SVGA_ID_INVALID
6477	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6478	)
6479	break;
6480	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6481	}
6482
6483	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pState, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6484	AssertRCReturn(rc, rc);
6485
6486	iCurrentVertex = iVertex;
6487	}
6488
6489	/* Now draw the primitives. */
6490	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6491	{
6492	GLenum modeDraw;
6493	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6494	PVMSVGA3DSURFACE pIndexSurface = NULL;
6495	unsigned cVertices;
6496
6497	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6498	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6499	if (RT_FAILURE(rc))
6500	{
6501	AssertRC(rc);
6502	goto internal_error;
6503	}
6504
6505	if (sidIndex != SVGA3D_INVALID_ID)
6506	{
6507	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6508
6509	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
6510	\|\| sidIndex >= pState->cSurfaces
6511	\|\| pState->paSurface[sidIndex].id != sidIndex)
6512	{
6513	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
6514	Assert(sidIndex < pState->cSurfaces && pState->paSurface[sidIndex].id == sidIndex);
6515	rc = VERR_INVALID_PARAMETER;
6516	goto internal_error;
6517	}
6518	pIndexSurface = &pState->paSurface[sidIndex];
6519	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6520
6521	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6522	{
6523	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6524
6525	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6526	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6527
6528	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6529	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6530
6531	Assert(pIndexSurface->fDirty);
6532
6533	/* @todo rethink usage dynamic/static */
6534	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6535	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6536
6537	pIndexSurface->pMipmapLevels[0].fDirty = false;
6538	pIndexSurface->fDirty = false;
6539
6540	pIndexSurface->flags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6541	}
6542	else
6543	{
6544	Assert(pIndexSurface->fDirty == false);
6545
6546	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6547	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6548	}
6549	pIndexSurface->idAssociatedContext = pContext->id;
6550	}
6551
6552	if (!pIndexSurface)
6553	{
6554	/* Render without an index buffer */
6555	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
6556	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6557	}
6558	else
6559	{
6560	Assert(pRange[iPrimitive].indexBias >= 0); /* @todo */
6561	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6562
6563	/* Render with an index buffer */
6564	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));
6565	if (pRange[iPrimitive].indexBias == 0)
6566	glDrawElements(modeDraw,
6567	cVertices,
6568	(pRange[iPrimitive].indexWidth == sizeof(uint16_t)) ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
6569	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6570	else
6571	pState->ext.glDrawElementsBaseVertex(modeDraw,
6572	cVertices,
6573	(pRange[iPrimitive].indexWidth == sizeof(uint16_t)) ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
6574	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6575	pRange[iPrimitive].indexBias); /* basevertex */
6576
6577	/* Unbind the index buffer after usage. */
6578	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6579	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6580	}
6581	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6582	}
6583
6584	internal_error:
6585
6586	/* Deactivate the vertex declarations. */
6587	iCurrentVertex = 0;
6588	while (iCurrentVertex < numVertexDecls)
6589	{
6590	uint32_t sidVertex = SVGA_ID_INVALID;
6591	uint32_t iVertex;
6592
6593	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6594	{
6595	if ( sidVertex != SVGA_ID_INVALID
6596	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6597	)
6598	break;
6599	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6600	}
6601
6602	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pState, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6603	AssertRCReturn(rc, rc);
6604
6605	iCurrentVertex = iVertex;
6606	}
6607	#ifdef DEBUG
6608	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTexture); i++)
6609	{
6610	if (pContext->aSidActiveTexture[i] != SVGA3D_INVALID_ID)
6611	{
6612	GLint activeTexture = 0;
6613	GLint activeTextureUnit = 0;
6614
6615	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6616	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6617
6618	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
6619	pState->ext.glActiveTexture(activeTextureUnit);
6620
6621	if (pContext->aSidActiveTexture[activeTextureUnit - GL_TEXTURE0] != SVGA3D_INVALID_ID)
6622	{
6623	PVMSVGA3DSURFACE pTexture;
6624	pTexture = &pState->paSurface[pContext->aSidActiveTexture[activeTextureUnit - GL_TEXTURE0]];
6625
6626	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture, ("%x vs %x unit %d - %d\n", pTexture->oglId.texture, activeTexture, i, activeTextureUnit - GL_TEXTURE0));
6627	}
6628	}
6629	}
6630	#endif
6631
6632	#ifdef DEBUG_GFX_WINDOW
6633	if (pContext->aSidActiveTexture[0])
6634	{
6635	SVGA3dCopyRect rect;
6636
6637	rect.srcx = rect.srcy = rect.x = rect.y = 0;
6638	rect.w = 800;
6639	rect.h = 600;
6640	vmsvga3dCommandPresent(pThis, pContext->sidRenderTarget, 0, NULL);
6641	}
6642	#endif
6643	return rc;
6644	}
6645
6646
6647	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6648	{
6649	PVMSVGA3DCONTEXT pContext;
6650	PVMSVGA3DSHADER pShader;
6651	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6652	AssertReturn(pState, VERR_NO_MEMORY);
6653	int rc;
6654
6655	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6656	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6657
6658	if ( cid >= pState->cContexts
6659	\|\| pState->paContext[cid].id != cid)
6660	{
6661	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6662	return VERR_INVALID_PARAMETER;
6663	}
6664	pContext = &pState->paContext[cid];
6665	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6666
6667	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6668	if (type == SVGA3D_SHADERTYPE_VS)
6669	{
6670	if (shid >= pContext->cVertexShaders)
6671	{
6672	pContext->paVertexShader = (PVMSVGA3DSHADER)RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) * (shid + 1));
6673	AssertReturn(pContext->paVertexShader, VERR_NO_MEMORY);
6674	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6675	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6676	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6677	pContext->cVertexShaders = shid + 1;
6678	}
6679	/* If one already exists with this id, then destroy it now. */
6680	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6681	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6682
6683	pShader = &pContext->paVertexShader[shid];
6684	}
6685	else
6686	{
6687	Assert(type == SVGA3D_SHADERTYPE_PS);
6688	if (shid >= pContext->cPixelShaders)
6689	{
6690	pContext->paPixelShader = (PVMSVGA3DSHADER)RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) * (shid + 1));
6691	AssertReturn(pContext->paPixelShader, VERR_NO_MEMORY);
6692	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6693	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6694	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6695	pContext->cPixelShaders = shid + 1;
6696	}
6697	/* If one already exists with this id, then destroy it now. */
6698	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6699	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6700
6701	pShader = &pContext->paPixelShader[shid];
6702	}
6703
6704	memset(pShader, 0, sizeof(*pShader));
6705	pShader->id = shid;
6706	pShader->cid = cid;
6707	pShader->type = type;
6708	pShader->cbData = cbData;
6709	pShader->pShaderProgram = RTMemAllocZ(cbData);
6710	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6711	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6712
6713	switch (type)
6714	{
6715	case SVGA3D_SHADERTYPE_VS:
6716	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6717	break;
6718
6719	case SVGA3D_SHADERTYPE_PS:
6720	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6721	break;
6722
6723	default:
6724	AssertFailedReturn(VERR_INVALID_PARAMETER);
6725	}
6726
6727	return rc;
6728	}
6729
6730	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6731	{
6732	PVMSVGA3DCONTEXT pContext;
6733	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6734	AssertReturn(pState, VERR_NO_MEMORY);
6735	PVMSVGA3DSHADER pShader = NULL;
6736	int rc;
6737
6738	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6739
6740	if ( cid >= pState->cContexts
6741	\|\| pState->paContext[cid].id != cid)
6742	{
6743	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6744	return VERR_INVALID_PARAMETER;
6745	}
6746	pContext = &pState->paContext[cid];
6747	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6748
6749	if (type == SVGA3D_SHADERTYPE_VS)
6750	{
6751	if ( shid < pContext->cVertexShaders
6752	&& pContext->paVertexShader[shid].id == shid)
6753	{
6754	pShader = &pContext->paVertexShader[shid];
6755	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6756	AssertRC(rc);
6757	}
6758	}
6759	else
6760	{
6761	Assert(type == SVGA3D_SHADERTYPE_PS);
6762	if ( shid < pContext->cPixelShaders
6763	&& pContext->paPixelShader[shid].id == shid)
6764	{
6765	pShader = &pContext->paPixelShader[shid];
6766	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6767	AssertRC(rc);
6768	}
6769	}
6770
6771	if (pShader)
6772	{
6773	if (pShader->pShaderProgram)
6774	RTMemFree(pShader->pShaderProgram);
6775	memset(pShader, 0, sizeof(*pShader));
6776	pShader->id = SVGA3D_INVALID_ID;
6777	}
6778	else
6779	AssertFailedReturn(VERR_INVALID_PARAMETER);
6780
6781	return VINF_SUCCESS;
6782	}
6783
6784	int vmsvga3dShaderSet(PVGASTATE pThis, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6785	{
6786	PVMSVGA3DCONTEXT pContext;
6787	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6788	AssertReturn(pState, VERR_NO_MEMORY);
6789	int rc;
6790
6791	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6792
6793	if ( cid >= pState->cContexts
6794	\|\| pState->paContext[cid].id != cid)
6795	{
6796	Log(("vmsvga3dShaderSet invalid context id!\n"));
6797	return VERR_INVALID_PARAMETER;
6798	}
6799	pContext = &pState->paContext[cid];
6800	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6801
6802	if (type == SVGA3D_SHADERTYPE_VS)
6803	{
6804	/* Save for vm state save/restore. */
6805	pContext->state.shidVertex = shid;
6806	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6807
6808	if ( shid < pContext->cVertexShaders
6809	&& pContext->paVertexShader[shid].id == shid)
6810	{
6811	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6812	Assert(type == pShader->type);
6813
6814	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6815	AssertRCReturn(rc, rc);
6816	}
6817	else
6818	if (shid == SVGA_ID_INVALID)
6819	{
6820	/* Unselect shader. */
6821	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6822	AssertRCReturn(rc, rc);
6823	}
6824	else
6825	AssertFailedReturn(VERR_INVALID_PARAMETER);
6826	}
6827	else
6828	{
6829	/* Save for vm state save/restore. */
6830	pContext->state.shidPixel = shid;
6831	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6832
6833	Assert(type == SVGA3D_SHADERTYPE_PS);
6834	if ( shid < pContext->cPixelShaders
6835	&& pContext->paPixelShader[shid].id == shid)
6836	{
6837	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6838	Assert(type == pShader->type);
6839
6840	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6841	AssertRCReturn(rc, rc);
6842	}
6843	else
6844	if (shid == SVGA_ID_INVALID)
6845	{
6846	/* Unselect shader. */
6847	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6848	AssertRCReturn(rc, rc);
6849	}
6850	else
6851	AssertFailedReturn(VERR_INVALID_PARAMETER);
6852	}
6853
6854	return VINF_SUCCESS;
6855	}
6856
6857	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6858	{
6859	PVMSVGA3DCONTEXT pContext;
6860	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6861	AssertReturn(pState, VERR_NO_MEMORY);
6862	int rc;
6863
6864	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6865
6866	if ( cid >= pState->cContexts
6867	\|\| pState->paContext[cid].id != cid)
6868	{
6869	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6870	return VERR_INVALID_PARAMETER;
6871	}
6872	pContext = &pState->paContext[cid];
6873	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6874
6875	for (uint32_t i = 0; i < cRegisters; i++)
6876	{
6877	#ifdef LOG_ENABLED
6878	switch (ctype)
6879	{
6880	case SVGA3D_CONST_TYPE_FLOAT:
6881	{
6882	float pValuesF = (float )pValues;
6883	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)));
6884	break;
6885	}
6886
6887	case SVGA3D_CONST_TYPE_INT:
6888	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6889	break;
6890
6891	case SVGA3D_CONST_TYPE_BOOL:
6892	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6893	break;
6894	}
6895	#endif
6896	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6897	}
6898
6899	switch (type)
6900	{
6901	case SVGA3D_SHADERTYPE_VS:
6902	switch (ctype)
6903	{
6904	case SVGA3D_CONST_TYPE_FLOAT:
6905	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6906	break;
6907
6908	case SVGA3D_CONST_TYPE_INT:
6909	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6910	break;
6911
6912	case SVGA3D_CONST_TYPE_BOOL:
6913	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6914	break;
6915
6916	default:
6917	AssertFailedReturn(VERR_INVALID_PARAMETER);
6918	}
6919	AssertRCReturn(rc, rc);
6920	break;
6921
6922	case SVGA3D_SHADERTYPE_PS:
6923	switch (ctype)
6924	{
6925	case SVGA3D_CONST_TYPE_FLOAT:
6926	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6927	break;
6928
6929	case SVGA3D_CONST_TYPE_INT:
6930	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6931	break;
6932
6933	case SVGA3D_CONST_TYPE_BOOL:
6934	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6935	break;
6936
6937	default:
6938	AssertFailedReturn(VERR_INVALID_PARAMETER);
6939	}
6940	AssertRCReturn(rc, rc);
6941	break;
6942
6943	default:
6944	AssertFailedReturn(VERR_INVALID_PARAMETER);
6945	}
6946
6947	return VINF_SUCCESS;
6948	}
6949
6950
6951	int vmsvga3dQueryBegin(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type)
6952	{
6953	AssertFailed();
6954	return VERR_NOT_IMPLEMENTED;
6955	}
6956
6957	int vmsvga3dQueryEnd(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
6958	{
6959	AssertFailed();
6960	return VERR_NOT_IMPLEMENTED;
6961	}
6962
6963	int vmsvga3dQueryWait(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
6964	{
6965	AssertFailed();
6966	return VERR_NOT_IMPLEMENTED;
6967	}
6968

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 54211

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