DevVGA-SVGA3d-ogl.cpp@ 56017

Last change on this file since 56017 was 55840, checked in by vboxsync, 10 years ago
vmsvga3d/mac: Fixed problem with missing back/front buffers. Stop use renderspu_cocoa_helper.m and use DevVGA-SVGA3d-cocoa.m, only now its even more stripped down that earlier.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 307.8 KB

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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 55840 2015-05-13 09:36:04Z vboxsync $ */
2	/** @file
3	* DevVMWare - VMWare SVGA device
4	*/
5
6	/*
7	* Copyright (C) 2013-2015 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*******************************************************************************
20	* Header Files *
21	*******************************************************************************/
22	/* Enable to disassemble defined shaders. (Windows host only) */
23	#if defined(RT_OS_WINDOWS) && defined(DEBUG) && 0 /* Disabled as we don't have the DirectX SDK avaible atm. */
24	# define DUMP_SHADER_DISASSEMBLY
25	#endif
26	#ifdef DEBUG_bird
27	# define RTMEM_WRAP_TO_EF_APIS
28	#endif
29	#define LOG_GROUP LOG_GROUP_DEV_VMSVGA
30	#include <VBox/vmm/pdmdev.h>
31	#include <VBox/version.h>
32	#include <VBox/err.h>
33	#include <VBox/log.h>
34	#include <VBox/vmm/pgm.h>
35
36	#include <iprt/assert.h>
37	#include <iprt/semaphore.h>
38	#include <iprt/uuid.h>
39	#include <iprt/mem.h>
40	#include <iprt/avl.h>
41
42	#include <VBox/VMMDev.h>
43	#include <VBox/VBoxVideo.h>
44	#include <VBox/bioslogo.h>
45
46	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
47	#include "DevVGA.h"
48
49	#include "DevVGA-SVGA.h"
50	#include "DevVGA-SVGA3d.h"
51	#include "vmsvga/svga_reg.h"
52	#include "vmsvga/svga3d_reg.h"
53	#include "vmsvga/svga3d_shaderdefs.h"
54
55	#ifdef RT_OS_WINDOWS
56	# include <GL/gl.h>
57	# include "vmsvga_glext/wglext.h"
58
59	#elif defined(RT_OS_DARWIN)
60	# include <OpenGL/OpenGL.h>
61	# include <OpenGL/gl3.h>
62	# include <OpenGL/gl3ext.h>
63	# define GL_DO_NOT_WARN_IF_MULTI_GL_VERSION_HEADERS_INCLUDED
64	# include <OpenGL/gl.h>
65	# include <OpenGL/glext.h>
66	# include "DevVGA-SVGA3d-cocoa.h"
67	/* work around conflicting definition of GLhandleARB in VMware's glext.h */
68	//#define GL_ARB_shader_objects
69	// HACK
70	typedef void (APIENTRYP PFNGLFOGCOORDPOINTERPROC) (GLenum type, GLsizei stride, const GLvoid *pointer);
71	typedef void (APIENTRYP PFNGLCLIENTACTIVETEXTUREPROC) (GLenum texture);
72	typedef void (APIENTRYP PFNGLGETPROGRAMIVARBPROC) (GLenum target, GLenum pname, GLint *params);
73	# define GL_RGBA_S3TC 0x83A2
74	# define GL_ALPHA8_EXT 0x803c
75	# define GL_LUMINANCE8_EXT 0x8040
76	# define GL_LUMINANCE16_EXT 0x8042
77	# define GL_LUMINANCE4_ALPHA4_EXT 0x8043
78	# define GL_LUMINANCE8_ALPHA8_EXT 0x8045
79	# define GL_INT_2_10_10_10_REV 0x8D9F
80	#else
81	# include <X11/Xlib.h>
82	# include <X11/Xatom.h>
83	# include <GL/gl.h>
84	# include <GL/glx.h>
85	# include <GL/glext.h>
86	# define VBOX_VMSVGA3D_GL_HACK_LEVEL 0x103
87	#endif
88	#ifdef DUMP_SHADER_DISASSEMBLY
89	# include <d3dx9shader.h>
90	#endif
91	#include "vmsvga_glext/glext.h"
92
93	#include "shaderlib/shaderlib.h"
94
95	#include <stdlib.h>
96	#include <math.h>
97	#include <float.h>
98
99
100	/*******************************************************************************
101	* Defined Constants And Macros *
102	*******************************************************************************/
103	/** Experimental: Create a dedicated context for handling surfaces in, thus
104	* avoiding orphaned surfaces after context destruction.
105	*
106	* This cures, for instance, an assertion on fedora 21 that happens in
107	* vmsvga3dSurfaceStretchBlt if the login screen and the desktop has different
108	* sizes. The context of the login screen seems to have just been destroyed
109	* earlier and I believe the driver/X/whoever is attemting to strech the old
110	* screen content onto the new sized screen.
111	*
112	* @remarks This probably comes at a slight preformance expense, as we currently
113	* switches context when setting up the surface the first time. Not sure
114	* if we really need to, but as this is an experiment, I'm playing it safe.
115	*/
116	#define VMSVGA3D_OGL_WITH_SHARED_CTX
117	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
118	/** Fake surface ID for the shared context. */
119	# define VMSVGA3D_SHARED_CTX_ID UINT32_C(0xffffeeee)
120	#endif
121
122	/** @def VBOX_VMSVGA3D_GL_HACK_LEVEL
123	* Turns out that on Linux gl.h may often define the first 2-4 OpenGL versions
124	* worth of extensions, but missing out on a function pointer of fifteen. This
125	* causes headache for us when we use the function pointers below. This hack
126	* changes the code to call the known problematic functions directly.
127	* The value is ((x)<<16 \| (y)) where x and y are taken from the GL_VERSION_x_y.
128	*/
129	#ifndef VBOX_VMSVGA3D_GL_HACK_LEVEL
130	# define VBOX_VMSVGA3D_GL_HACK_LEVEL 0
131	#endif
132
133	#ifndef VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE
134	# define VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE 1.0
135	#endif
136
137	#ifdef RT_OS_WINDOWS
138	# define OGLGETPROCADDRESS wglGetProcAddress
139
140	#elif defined(RT_OS_DARWIN)
141	# include <dlfcn.h>
142	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
143	/** Resolves an OpenGL symbol. */
144	static void MyNSGLGetProcAddress(const char pszSymbol)
145	{
146	/* Another copy in shaderapi.c. */
147	static void *s_pvImage = NULL;
148	if (s_pvImage == NULL)
149	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
150	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
151	}
152
153	#else
154	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
155	#endif
156
157	/* Invert y-coordinate for OpenGL's bottom left origin. */
158	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->pMipmapLevels[0].size.height - (y_coordinate))
159	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
160
161	#define OPENGL_INVALID_ID 0
162
163	//#define MANUAL_FLIP_SURFACE_DATA
164	/* Enable to render the result of DrawPrimitive in a seperate window. */
165	//#define DEBUG_GFX_WINDOW
166
167
168	/** @name VMSVGA3D_DEF_CTX_F_XXX - vmsvga3dContextDefineOgl flags.
169	* @{ */
170	/** When clear, the context is created using the default OpenGL profile.
171	* When set, it's created using the alternative profile. The latter is only
172	* allowed if the VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE is set. */
173	#define VMSVGA3D_DEF_CTX_F_OTHER_PROFILE RT_BIT_32(0)
174	/** Defining the shared context. */
175	#define VMSVGA3D_DEF_CTX_F_SHARED_CTX RT_BIT_32(1)
176	/** Defining the init time context (EMT). */
177	#define VMSVGA3D_DEF_CTX_F_INIT RT_BIT_32(2)
178	/** @} */
179
180
181	#define VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState) \
182	do { (pState)->idActiveContext = OPENGL_INVALID_ID; } while (0)
183
184	/** @def VMSVGA3D_SET_CURRENT_CONTEXT
185	* Makes sure the @a pContext is the active OpenGL context.
186	* @parm pState The VMSVGA3d state.
187	* @parm pContext The new context.
188	*/
189	#ifdef RT_OS_WINDOWS
190	# define VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext) \
191	if ((pState)->idActiveContext != (pContext)->id) \
192	{ \
193	BOOL fMakeCurrentRc = wglMakeCurrent((pContext)->hdc, (pContext)->hglrc); \
194	Assert(fMakeCurrentRc == TRUE); \
195	LogFlowFunc(("Changing context: %#x -> %#x\n", (pState)->idActiveContext, (pContext)->id)); \
196	(pState)->idActiveContext = (pContext)->id; \
197	} else do { } while (0)
198
199	#elif defined(RT_OS_DARWIN)
200	# define VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext) \
201	if ((pState)->idActiveContext != (pContext)->id) \
202	{ \
203	vmsvga3dCocoaViewMakeCurrentContext((pContext)->cocoaView, (pContext)->cocoaContext); \
204	LogFlowFunc(("Changing context: %#x -> %#x\n", (pState)->idActiveContext, (pContext)->id)); \
205	(pState)->idActiveContext = (pContext)->id; \
206	} else do { } while (0)
207	#else
208	# define VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext) \
209	if ((pState)->idActiveContext != (pContext)->id) \
210	{ \
211	Bool fMakeCurrentRc = glXMakeCurrent((pState)->display, \
212	(pContext)->window, \
213	(pContext)->glxContext); \
214	Assert(fMakeCurrentRc == True); \
215	LogFlowFunc(("Changing context: %#x -> %#x\n", (pState)->idActiveContext, (pContext)->id)); \
216	(pState)->idActiveContext = (pContext)->id; \
217	} else do { } while (0)
218	#endif
219
220	/** @def VMSVGA3D_CLEAR_GL_ERRORS
221	* Clears all pending OpenGL errors.
222	*
223	* If I understood this correctly, OpenGL maintains a bitmask internally and
224	* glGetError gets the next bit (clearing it) from the bitmap and translates it
225	* into a GL_XXX constant value which it then returns. A single OpenGL call can
226	* set more than one bit, and they stick around across calls, from what I
227	* understand.
228	*
229	* So in order to be able to use glGetError to check whether a function
230	* succeeded, we need to call glGetError until all error bits have been cleared.
231	* This macro does that (in all types of builds).
232	*
233	* @sa VMSVGA3D_GET_GL_ERROR, VMSVGA3D_GL_IS_SUCCESS
234	*/
235	#define VMSVGA3D_CLEAR_GL_ERRORS() \
236	do { \
237	if (RT_UNLIKELY(glGetError() != GL_NO_ERROR)) /* predict no errors pending */ \
238	{ \
239	uint32_t iErrorClearingLoopsLeft = 64; \
240	while (glGetError() != GL_NO_ERROR && iErrorClearingLoopsLeft > 0) \
241	iErrorClearingLoopsLeft--; \
242	} \
243	} while (0)
244
245	/** @def VMSVGA3D_GET_LAST_GL_ERROR
246	* Gets the last OpenGL error, stores it in a_pContext->lastError and returns
247	* it.
248	*
249	* @returns Same as glGetError.
250	* @param a_pContext The context to store the error in.
251	*
252	* @sa VMSVGA3D_GL_IS_SUCCESS, VMSVGA3D_GL_COMPLAIN
253	*/
254	#define VMSVGA3D_GET_GL_ERROR(a_pContext) ((a_pContext)->lastError = glGetError())
255
256	/** @def VMSVGA3D_GL_SUCCESS
257	* Checks whether VMSVGA3D_GET_LAST_GL_ERROR() return GL_NO_ERROR.
258	*
259	* Will call glGetError() and store the result in a_pContext->lastError.
260	* Will predict GL_NO_ERROR outcome.
261	*
262	* @returns True on success, false on error.
263	* @parm a_pContext The context to store the error in.
264	*
265	* @sa VMSVGA3D_GET_GL_ERROR, VMSVGA3D_GL_COMPLAIN
266	*/
267	#define VMSVGA3D_GL_IS_SUCCESS(a_pContext) RT_LIKELY((((a_pContext)->lastError = glGetError()) == GL_NO_ERROR))
268
269	/** @def VMSVGA3D_GL_COMPLAIN
270	* Complains about one or more OpenGL errors (first in a_pContext->lastError).
271	*
272	* Strict builds will trigger an assertion, while other builds will put the
273	* first few occurences in the release log.
274	*
275	* All GL errors will be cleared after invocation. Assumes lastError
276	* is an error, will not check for GL_NO_ERROR.
277	*
278	* @param a_pState The 3D state structure.
279	* @param a_pContext The context that holds the first error.
280	* @param a_LogRelDetails Argument list for LogRel or similar that describes
281	* the operation in greater detail.
282	*
283	* @sa VMSVGA3D_GET_GL_ERROR, VMSVGA3D_GL_IS_SUCCESS
284	*/
285	#ifdef VBOX_STRICT
286	# define VMSVGA3D_GL_COMPLAIN(a_pState, a_pContext, a_LogRelDetails) \
287	do { \
288	AssertMsg((a_pState)->idActiveContext == (a_pContext)->id, \
289	("idActiveContext=%#x id=%x\n", (a_pState)->idActiveContext, (a_pContext)->id)); \
290	RTAssertMsg2Weak a_LogRelDetails; \
291	GLenum iNextError; \
292	while ((iNextError = glGetError()) != GL_NO_ERROR) \
293	RTAssertMsg2Weak("next error: %#x\n", iNextError); \
294	AssertMsgFailed(("first error: %#x (idActiveContext=%#x)\n", (a_pContext)->lastError, (a_pContext)->id)); \
295	} while (0)
296	#else
297	# define VMSVGA3D_GL_COMPLAIN(a_pState, a_pContext, a_LogRelDetails) \
298	do { \
299	LogRelMax(32, ("VMSVGA3d: OpenGL error %#x (idActiveContext=%#x) on line %u ", (a_pContext)->lastError, (a_pContext)->id)); \
300	GLenum iNextError; \
301	while ((iNextError = glGetError()) != GL_NO_ERROR) \
302	LogRelMax(32, (" - also error %#x ", iNextError)); \
303	LogRelMax(32, a_LogRelDetails); \
304	} while (0)
305	#endif
306
307	/** @def VMSVGA3D_GL_GET_AND_COMPLAIN
308	* Combination of VMSVGA3D_GET_GL_ERROR and VMSVGA3D_GL_COMPLAIN, assuming that
309	* there is a pending error.
310	*
311	* @param a_pState The 3D state structure.
312	* @param a_pContext The context that holds the first error.
313	* @param a_LogRelDetails Argument list for LogRel or similar that describes
314	* the operation in greater detail.
315	*
316	* @sa VMSVGA3D_GET_GL_ERROR, VMSVGA3D_GL_IS_SUCCESS, VMSVGA3D_GL_COMPLAIN
317	*/
318	#define VMSVGA3D_GL_GET_AND_COMPLAIN(a_pState, a_pContext, a_LogRelDetails) \
319	do { \
320	VMSVGA3D_GET_GL_ERROR(a_pContext); \
321	VMSVGA3D_GL_COMPLAIN(a_pState, a_pContext, a_LogRelDetails); \
322	} while (0)
323
324	/** @def VMSVGA3D_GL_ASSERT_SUCCESS
325	* Asserts that VMSVGA3D_GL_IS_SUCCESS is true, complains if not.
326	*
327	* Uses VMSVGA3D_GL_COMPLAIN for complaining, so check it out wrt to release
328	* logging in non-strict builds.
329	*
330	* @param a_pState The 3D state structure.
331	* @param a_pContext The context that holds the first error.
332	* @param a_LogRelDetails Argument list for LogRel or similar that describes
333	* the operation in greater detail.
334	*
335	* @sa VMSVGA3D_GET_GL_ERROR, VMSVGA3D_GL_IS_SUCCESS, VMSVGA3D_GL_COMPLAIN
336	*/
337	#define VMSVGA3D_GL_ASSERT_SUCCESS(a_pState, a_pContext, a_LogRelDetails) \
338	if (VMSVGA3D_GL_IS_SUCCESS(a_pContext)) \
339	{ /* likely */ } \
340	else do { \
341	VMSVGA3D_GL_COMPLAIN(a_pState, a_pContext, a_LogRelDetails); \
342	} while (0)
343
344	/** @def VMSVGA3D_ASSERT_GL_CALL_EX
345	* Executes the specified OpenGL API call and asserts that it succeeded, variant
346	* with extra logging flexibility.
347	*
348	* ASSUMES no GL errors pending prior to invocation - caller should use
349	* VMSVGA3D_CLEAR_GL_ERRORS if uncertain.
350	*
351	* Uses VMSVGA3D_GL_COMPLAIN for complaining, so check it out wrt to release
352	* logging in non-strict builds.
353	*
354	* @param a_GlCall Expression making an OpenGL call.
355	* @param a_pState The 3D state structure.
356	* @param a_pContext The context that holds the first error.
357	* @param a_LogRelDetails Argument list for LogRel or similar that describes
358	* the operation in greater detail.
359	*
360	* @sa VMSVGA3D_ASSERT_GL_CALL, VMSVGA3D_GL_ASSERT_SUCCESS,
361	* VMSVGA3D_GET_GL_ERROR, VMSVGA3D_GL_IS_SUCCESS, VMSVGA3D_GL_COMPLAIN
362	*/
363	#define VMSVGA3D_ASSERT_GL_CALL_EX(a_GlCall, a_pState, a_pContext, a_LogRelDetails) \
364	do { \
365	(a_GlCall); \
366	VMSVGA3D_GL_ASSERT_SUCCESS(a_pState, a_pContext, a_LogRelDetails); \
367	} while (0)
368
369	/** @def VMSVGA3D_ASSERT_GL_CALL
370	* Executes the specified OpenGL API call and asserts that it succeeded.
371	*
372	* ASSUMES no GL errors pending prior to invocation - caller should use
373	* VMSVGA3D_CLEAR_GL_ERRORS if uncertain.
374	*
375	* Uses VMSVGA3D_GL_COMPLAIN for complaining, so check it out wrt to release
376	* logging in non-strict builds.
377	*
378	* @param a_GlCall Expression making an OpenGL call.
379	* @param a_pState The 3D state structure.
380	* @param a_pContext The context that holds the first error.
381	*
382	* @sa VMSVGA3D_ASSERT_GL_CALL_EX, VMSVGA3D_GL_ASSERT_SUCCESS,
383	* VMSVGA3D_GET_GL_ERROR, VMSVGA3D_GL_IS_SUCCESS, VMSVGA3D_GL_COMPLAIN
384	*/
385	#define VMSVGA3D_ASSERT_GL_CALL(a_GlCall, a_pState, a_pContext) \
386	VMSVGA3D_ASSERT_GL_CALL_EX(a_GlCall, a_pState, a_pContext, ("%s\n", #a_GlCall))
387
388
389	/** @def VMSVGA3D_CHECK_LAST_ERROR
390	* Checks that the last OpenGL error code indicates success.
391	*
392	* Will assert and return VERR_INTERNAL_ERROR in strict builds, in other
393	* builds it will do nothing and is a NOOP.
394	*
395	* @parm pState The VMSVGA3d state.
396	* @parm pContext The context.
397	*
398	* @todo Replace with proper error handling, it's crazy to return
399	* VERR_INTERNAL_ERROR in strict builds and just barge on ahead in
400	* release builds.
401	*/
402	#ifdef VBOX_STRICT
403	# define VMSVGA3D_CHECK_LAST_ERROR(pState, pContext) do { \
404	Assert((pState)->idActiveContext == (pContext)->id); \
405	(pContext)->lastError = glGetError(); \
406	AssertMsgReturn((pContext)->lastError == GL_NO_ERROR, \
407	("%s (%d): last error 0x%x\n", __FUNCTION__, __LINE__, (pContext)->lastError), \
408	VERR_INTERNAL_ERROR); \
409	} while (0)
410	#else
411	# define VMSVGA3D_CHECK_LAST_ERROR(pState, pContext) do { } while (0)
412	#endif
413
414	/** @def VMSVGA3D_CHECK_LAST_ERROR_WARN
415	* Checks that the last OpenGL error code indicates success.
416	*
417	* Will assert in strict builds, otherwise it's a NOOP.
418	*
419	* @parm pState The VMSVGA3d state.
420	* @parm pContext The new context.
421	*/
422	#ifdef VBOX_STRICT
423	# define VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext) do { \
424	Assert((pState)->idActiveContext == (pContext)->id); \
425	(pContext)->lastError = glGetError(); \
426	AssertMsg((pContext)->lastError == GL_NO_ERROR, ("%s (%d): last error 0x%x\n", __FUNCTION__, __LINE__, (pContext)->lastError)); \
427	} while (0)
428	#else
429	# define VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext) do { } while (0)
430	#endif
431
432
433	/**
434	* Macro for doing something and then checking for errors during initialization.
435	* Uses AssertLogRelMsg.
436	*/
437	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
438	do \
439	{ \
440	a_Expr; \
441	GLenum iGlError = glGetError(); \
442	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
443	} while (0)
444
445	/**
446	* Macro for doing something and then checking for errors during initialization,
447	* doing the same in the other context when enabled.
448	*
449	* This will try both profiles in dual profile builds. Caller must be in the
450	* default context.
451	*
452	* Uses AssertLogRelMsg to indicate trouble.
453	*/
454	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
455	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) \
456	do \
457	{ \
458	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
459	a_Expr; \
460	GLenum iGlError = glGetError(); \
461	if (iGlError != GL_NO_ERROR) \
462	{ \
463	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pOtherCtx); \
464	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
465	a_Expr; \
466	GLenum iGlError2 = glGetError(); \
467	AssertLogRelMsg(iGlError2 == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x / %#x\n", #a_Expr, iGlError, iGlError2)); \
468	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pContext); \
469	} \
470	} while (0)
471	#else
472	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) VMSVGA3D_INIT_CHECKED(a_Expr)
473	#endif
474
475
476	/*******************************************************************************
477	* Structures, Typedefs and Globals. *
478	*******************************************************************************/
479	typedef struct
480	{
481	SVGA3dSize size;
482	uint32_t cbSurface;
483	uint32_t cbSurfacePitch;
484	void *pSurfaceData;
485	bool fDirty;
486	} VMSVGA3DMIPMAPLEVEL, *PVMSVGA3DMIPMAPLEVEL;
487
488	/**
489	* SSM descriptor table for the VMSVGA3DMIPMAPLEVEL structure.
490	*/
491	static SSMFIELD const g_aVMSVGA3DMIPMAPLEVELFields[] =
492	{
493	SSMFIELD_ENTRY( VMSVGA3DMIPMAPLEVEL, size),
494	SSMFIELD_ENTRY( VMSVGA3DMIPMAPLEVEL, cbSurface),
495	SSMFIELD_ENTRY( VMSVGA3DMIPMAPLEVEL, cbSurfacePitch),
496	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DMIPMAPLEVEL, pSurfaceData),
497	SSMFIELD_ENTRY_IGNORE( VMSVGA3DMIPMAPLEVEL, fDirty),
498	SSMFIELD_ENTRY_TERM()
499	};
500
501	typedef struct
502	{
503	uint32_t id;
504	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
505	uint32_t idWeakContextAssociation;
506	#else
507	uint32_t idAssociatedContext;
508	#endif
509	uint32_t flags;
510	SVGA3dSurfaceFormat format;
511	GLint internalFormatGL;
512	GLint formatGL;
513	GLint typeGL;
514	union
515	{
516	GLuint texture;
517	GLuint buffer;
518	GLuint renderbuffer;
519	} oglId;
520	SVGA3dSurfaceFace faces[SVGA3D_MAX_SURFACE_FACES];
521	uint32_t cFaces;
522	PVMSVGA3DMIPMAPLEVEL pMipmapLevels;
523	uint32_t multiSampleCount;
524	SVGA3dTextureFilter autogenFilter;
525	uint32_t cbBlock; /* block/pixel size in bytes */
526	/* Dirty state; surface was manually updated. */
527	bool fDirty;
528	} VMSVGA3DSURFACE, *PVMSVGA3DSURFACE;
529
530	/**
531	* SSM descriptor table for the VMSVGA3DSURFACE structure.
532	*/
533	static SSMFIELD const g_aVMSVGA3DSURFACEFields[] =
534	{
535	SSMFIELD_ENTRY( VMSVGA3DSURFACE, id),
536	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
537	SSMFIELD_ENTRY( VMSVGA3DSURFACE, idWeakContextAssociation),
538	#else
539	SSMFIELD_ENTRY( VMSVGA3DSURFACE, idAssociatedContext),
540	#endif
541	SSMFIELD_ENTRY( VMSVGA3DSURFACE, flags),
542	SSMFIELD_ENTRY( VMSVGA3DSURFACE, format),
543	SSMFIELD_ENTRY( VMSVGA3DSURFACE, internalFormatGL),
544	SSMFIELD_ENTRY( VMSVGA3DSURFACE, formatGL),
545	SSMFIELD_ENTRY( VMSVGA3DSURFACE, typeGL),
546	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSURFACE, id),
547	SSMFIELD_ENTRY( VMSVGA3DSURFACE, faces),
548	SSMFIELD_ENTRY( VMSVGA3DSURFACE, cFaces),
549	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSURFACE, pMipmapLevels),
550	SSMFIELD_ENTRY( VMSVGA3DSURFACE, multiSampleCount),
551	SSMFIELD_ENTRY( VMSVGA3DSURFACE, autogenFilter),
552	SSMFIELD_ENTRY( VMSVGA3DSURFACE, cbBlock),
553	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSURFACE, fDirty),
554	SSMFIELD_ENTRY_TERM()
555	};
556
557	typedef struct
558	{
559	uint32_t id;
560	uint32_t cid;
561	SVGA3dShaderType type;
562	uint32_t cbData;
563	void *pShaderProgram;
564	union
565	{
566	void *pVertexShader;
567	void *pPixelShader;
568	} u;
569	} VMSVGA3DSHADER, *PVMSVGA3DSHADER;
570
571	/**
572	* SSM descriptor table for the VMSVGA3DSHADER structure.
573	*/
574	static SSMFIELD const g_aVMSVGA3DSHADERFields[] =
575	{
576	SSMFIELD_ENTRY( VMSVGA3DSHADER, id),
577	SSMFIELD_ENTRY( VMSVGA3DSHADER, cid),
578	SSMFIELD_ENTRY( VMSVGA3DSHADER, type),
579	SSMFIELD_ENTRY( VMSVGA3DSHADER, cbData),
580	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSHADER, pShaderProgram),
581	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSHADER, u.pVertexShader),
582	SSMFIELD_ENTRY_TERM()
583	};
584
585	typedef struct
586	{
587	bool fValid;
588	float matrix[16];
589	} VMSVGATRANSFORMSTATE, *PVMSVGATRANSFORMSTATE;
590
591	typedef struct
592	{
593	bool fValid;
594	SVGA3dMaterial material;
595	} VMSVGAMATERIALSTATE, *PVMSVGAMATERIALSTATE;
596
597	typedef struct
598	{
599	bool fValid;
600	float plane[4];
601	} VMSVGACLIPPLANESTATE, *PVMSVGACLIPPLANESTATE;
602
603	typedef struct
604	{
605	bool fEnabled;
606	bool fValidData;
607	SVGA3dLightData data;
608	} VMSVGALIGHTSTATE, *PVMSVGALIGHTSTATE;
609
610	typedef struct
611	{
612	bool fValid;
613	SVGA3dShaderConstType ctype;
614	uint32_t value[4];
615	} VMSVGASHADERCONST, *PVMSVGASHADERCONST;
616
617	/**
618	* SSM descriptor table for the VMSVGASHADERCONST structure.
619	*/
620	static SSMFIELD const g_aVMSVGASHADERCONSTFields[] =
621	{
622	SSMFIELD_ENTRY( VMSVGASHADERCONST, fValid),
623	SSMFIELD_ENTRY( VMSVGASHADERCONST, ctype),
624	SSMFIELD_ENTRY( VMSVGASHADERCONST, value),
625	SSMFIELD_ENTRY_TERM()
626	};
627
628	#define VMSVGA3D_UPDATE_SCISSORRECT RT_BIT(0)
629	#define VMSVGA3D_UPDATE_ZRANGE RT_BIT(1)
630	#define VMSVGA3D_UPDATE_VIEWPORT RT_BIT(2)
631	#define VMSVGA3D_UPDATE_VERTEXSHADER RT_BIT(3)
632	#define VMSVGA3D_UPDATE_PIXELSHADER RT_BIT(4)
633	#define VMSVGA3D_UPDATE_TRANSFORM RT_BIT(5)
634	#define VMSVGA3D_UPDATE_MATERIAL RT_BIT(6)
635
636	typedef struct VMSVGA3DCONTEXT
637	{
638	uint32_t id;
639	#ifdef RT_OS_WINDOWS
640	/* Device context of the context window. */
641	HDC hdc;
642	/* OpenGL rendering context handle. */
643	HGLRC hglrc;
644	/* Device context window handle. */
645	HWND hwnd;
646	#elif defined(RT_OS_DARWIN)
647	/* OpenGL rendering context */
648	NativeNSOpenGLContextRef cocoaContext;
649	NativeNSViewRef cocoaView;
650	bool fOtherProfile;
651	#else
652	/** XGL rendering context handle */
653	GLXContext glxContext;
654	/** Device context window handle */
655	Window window;
656	/** flag whether the window is mapped (=visible) */
657	bool fMapped;
658	#endif
659	/* Framebuffer object associated with this context. */
660	GLuint idFramebuffer;
661	/* Read and draw framebuffer objects for various operations. */
662	GLuint idReadFramebuffer;
663	GLuint idDrawFramebuffer;
664	/* Last GL error recorded. */
665	GLenum lastError;
666
667	/* Current active render target (if any) */
668	uint32_t sidRenderTarget;
669	/* Current selected texture surfaces (if any) */
670	uint32_t aSidActiveTexture[SVGA3D_MAX_TEXTURE_STAGE];
671	/* Per context pixel and vertex shaders. */
672	uint32_t cPixelShaders;
673	PVMSVGA3DSHADER paPixelShader;
674	uint32_t cVertexShaders;
675	PVMSVGA3DSHADER paVertexShader;
676	void *pShaderContext;
677	/* Keep track of the internal state to be able to recreate the context properly (save/restore, window resize). */
678	struct
679	{
680	uint32_t u32UpdateFlags;
681
682	SVGA3dRenderState aRenderState[SVGA3D_RS_MAX];
683	SVGA3dTextureState aTextureState[SVGA3D_MAX_TEXTURE_STAGE][SVGA3D_TS_MAX];
684	VMSVGATRANSFORMSTATE aTransformState[SVGA3D_TRANSFORM_MAX];
685	VMSVGAMATERIALSTATE aMaterial[SVGA3D_FACE_MAX];
686	VMSVGACLIPPLANESTATE aClipPlane[SVGA3D_CLIPPLANE_MAX];
687	VMSVGALIGHTSTATE aLightData[SVGA3D_MAX_LIGHTS];
688
689	uint32_t aRenderTargets[SVGA3D_RT_MAX];
690	SVGA3dRect RectScissor;
691	SVGA3dRect RectViewPort;
692	SVGA3dZRange zRange;
693	uint32_t shidPixel;
694	uint32_t shidVertex;
695
696	uint32_t cPixelShaderConst;
697	PVMSVGASHADERCONST paPixelShaderConst;
698	uint32_t cVertexShaderConst;
699	PVMSVGASHADERCONST paVertexShaderConst;
700	} state;
701	} VMSVGA3DCONTEXT, *PVMSVGA3DCONTEXT;
702
703	/**
704	* SSM descriptor table for the VMSVGA3DCONTEXT structure.
705	*/
706	static SSMFIELD const g_aVMSVGA3DCONTEXTFields[] =
707	{
708	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, id),
709	#ifdef RT_OS_WINDOWS
710	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, hdc),
711	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, hglrc),
712	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, hwnd),
713	#endif
714
715	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, idFramebuffer),
716	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, idReadFramebuffer),
717	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, idDrawFramebuffer),
718	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, lastError),
719
720	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, sidRenderTarget),
721	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, aSidActiveTexture),
722	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, cPixelShaders),
723	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DCONTEXT, paPixelShader),
724	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, cVertexShaders),
725	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DCONTEXT, paVertexShader),
726	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DCONTEXT, pShaderContext),
727	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.u32UpdateFlags),
728
729	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aRenderState),
730	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aTextureState),
731	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aTransformState),
732	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aMaterial),
733	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aClipPlane),
734	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aLightData),
735
736	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aRenderTargets),
737	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.RectScissor),
738	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.RectViewPort),
739	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.zRange),
740	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.shidPixel),
741	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.shidVertex),
742	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.cPixelShaderConst),
743	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DCONTEXT, state.paPixelShaderConst),
744	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.cVertexShaderConst),
745	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DCONTEXT, state.paVertexShaderConst),
746	SSMFIELD_ENTRY_TERM()
747	};
748
749	/**
750	* VMSVGA3d state data.
751	*
752	* Allocated on the heap and pointed to by VMSVGAState::p3dState.
753	*/
754	typedef struct VMSVGA3DSTATE
755	{
756	#ifdef RT_OS_WINDOWS
757	/** Window Thread. */
758	R3PTRTYPE(RTTHREAD) pWindowThread;
759	DWORD idWindowThread;
760	HMODULE hInstance;
761	/** Window request semaphore. */
762	RTSEMEVENT WndRequestSem;
763	#elif defined(RT_OS_LINUX)
764	/* The X display */
765	Display *display;
766	R3PTRTYPE(RTTHREAD) pWindowThread;
767	bool bTerminate;
768	#endif
769
770	float fGLVersion;
771	/* Current active context. */
772	uint32_t idActiveContext;
773
774	struct
775	{
776	PFNGLISRENDERBUFFERPROC glIsRenderbuffer;
777	PFNGLBINDRENDERBUFFERPROC glBindRenderbuffer;
778	PFNGLDELETERENDERBUFFERSPROC glDeleteRenderbuffers;
779	PFNGLGENRENDERBUFFERSPROC glGenRenderbuffers;
780	PFNGLRENDERBUFFERSTORAGEPROC glRenderbufferStorage;
781	PFNGLGETRENDERBUFFERPARAMETERIVPROC glGetRenderbufferParameteriv;
782	PFNGLISFRAMEBUFFERPROC glIsFramebuffer;
783	PFNGLBINDFRAMEBUFFERPROC glBindFramebuffer;
784	PFNGLDELETEFRAMEBUFFERSPROC glDeleteFramebuffers;
785	PFNGLGENFRAMEBUFFERSPROC glGenFramebuffers;
786	PFNGLCHECKFRAMEBUFFERSTATUSPROC glCheckFramebufferStatus;
787	PFNGLFRAMEBUFFERTEXTURE1DPROC glFramebufferTexture1D;
788	PFNGLFRAMEBUFFERTEXTURE2DPROC glFramebufferTexture2D;
789	PFNGLFRAMEBUFFERTEXTURE3DPROC glFramebufferTexture3D;
790	PFNGLFRAMEBUFFERRENDERBUFFERPROC glFramebufferRenderbuffer;
791	PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC glGetFramebufferAttachmentParameteriv;
792	PFNGLGENERATEMIPMAPPROC glGenerateMipmap;
793	PFNGLBLITFRAMEBUFFERPROC glBlitFramebuffer;
794	PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC glRenderbufferStorageMultisample;
795	PFNGLFRAMEBUFFERTEXTURELAYERPROC glFramebufferTextureLayer;
796	PFNGLPOINTPARAMETERFPROC glPointParameterf;
797	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
798	PFNGLBLENDCOLORPROC glBlendColor;
799	PFNGLBLENDEQUATIONPROC glBlendEquation;
800	#endif
801	PFNGLBLENDEQUATIONSEPARATEPROC glBlendEquationSeparate;
802	PFNGLBLENDFUNCSEPARATEPROC glBlendFuncSeparate;
803	PFNGLSTENCILOPSEPARATEPROC glStencilOpSeparate;
804	PFNGLSTENCILFUNCSEPARATEPROC glStencilFuncSeparate;
805	PFNGLBINDBUFFERPROC glBindBuffer;
806	PFNGLDELETEBUFFERSPROC glDeleteBuffers;
807	PFNGLGENBUFFERSPROC glGenBuffers;
808	PFNGLBUFFERDATAPROC glBufferData;
809	PFNGLMAPBUFFERPROC glMapBuffer;
810	PFNGLUNMAPBUFFERPROC glUnmapBuffer;
811	PFNGLENABLEVERTEXATTRIBARRAYPROC glEnableVertexAttribArray;
812	PFNGLDISABLEVERTEXATTRIBARRAYPROC glDisableVertexAttribArray;
813	PFNGLVERTEXATTRIBPOINTERPROC glVertexAttribPointer;
814	PFNGLFOGCOORDPOINTERPROC glFogCoordPointer;
815	PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC glDrawElementsInstancedBaseVertex;
816	PFNGLDRAWELEMENTSBASEVERTEXPROC glDrawElementsBaseVertex;
817	PFNGLACTIVETEXTUREPROC glActiveTexture;
818	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
819	PFNGLCLIENTACTIVETEXTUREPROC glClientActiveTexture;
820	#endif
821	PFNGLGETPROGRAMIVARBPROC glGetProgramivARB;
822	PFNGLPROVOKINGVERTEXPROC glProvokingVertex;
823	bool fEXT_stencil_two_side;
824	} ext;
825
826	struct
827	{
828	GLint maxActiveLights;
829	GLint maxTextureBufferSize;
830	GLint maxTextures;
831	GLint maxClipDistances;
832	GLint maxColorAttachments;
833	GLint maxRectangleTextureSize;
834	GLint maxTextureAnisotropy;
835	GLint maxVertexShaderInstructions;
836	GLint maxFragmentShaderInstructions;
837	GLint maxVertexShaderTemps;
838	GLint maxFragmentShaderTemps;
839	GLfloat flPointSize[2];
840	SVGA3dPixelShaderVersion fragmentShaderVersion;
841	SVGA3dVertexShaderVersion vertexShaderVersion;
842	bool fS3TCSupported;
843	} caps;
844
845	uint32_t cContexts;
846	PVMSVGA3DCONTEXT *papContexts;
847	uint32_t cSurfaces;
848	PVMSVGA3DSURFACE *papSurfaces;
849	#ifdef DEBUG_GFX_WINDOW_TEST_CONTEXT
850	uint32_t idTestContext;
851	#endif
852	/** The GL_EXTENSIONS value (space padded) for the default OpenGL profile.
853	* Free with RTStrFree. */
854	R3PTRTYPE(char *) pszExtensions;
855
856	/** The GL_EXTENSIONS value (space padded) for the other OpenGL profile.
857	* Free with RTStrFree.
858	*
859	* This is used to detect shader model version since some implementations
860	* (darwin) hides extensions that have made it into core and probably a
861	* bunch of others when using a OpenGL core profile instead of a legacy one */
862	R3PTRTYPE(char *) pszOtherExtensions;
863	/** The version of the other GL profile. */
864	float fOtherGLVersion;
865
866	/** Shader talk back interface. */
867	VBOXVMSVGASHADERIF ShaderIf;
868
869	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
870	/** The shared context. */
871	VMSVGA3DCONTEXT SharedCtx;
872	#endif
873	} VMSVGA3DSTATE;
874	/** Pointer to the VMSVGA3d state. */
875	typedef VMSVGA3DSTATE *PVMSVGA3DSTATE;
876
877	/**
878	* SSM descriptor table for the VMSVGA3DSTATE structure.
879	*/
880	static SSMFIELD const g_aVMSVGA3DSTATEFields[] =
881	{
882	#ifdef RT_OS_WINDOWS
883	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, pWindowThread),
884	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, idWindowThread),
885	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, hInstance),
886	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, WndRequestSem),
887	#elif defined(RT_OS_LINUX)
888	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, display),
889	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, pWindowThread),
890	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, bTerminate),
891	#endif
892	SSMFIELD_ENTRY( VMSVGA3DSTATE, fGLVersion),
893	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, idActiveContext),
894
895	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, ext),
896	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, caps),
897
898	SSMFIELD_ENTRY( VMSVGA3DSTATE, cContexts),
899	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, papContexts),
900	SSMFIELD_ENTRY( VMSVGA3DSTATE, cSurfaces),
901	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, papSurfaces),
902	SSMFIELD_ENTRY_TERM()
903	};
904
905
906	/** Save and setup everything. */
907	#define VMSVGA3D_PARANOID_TEXTURE_PACKING
908
909	/**
910	* Saved texture packing parameters (shared by both pack and unpack).
911	*/
912	typedef struct VMSVGAPACKPARAMS
913	{
914	GLint iAlignment;
915	GLint cxRow;
916	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
917	GLint cyImage;
918	GLboolean fSwapBytes;
919	GLboolean fLsbFirst;
920	GLint cSkipRows;
921	GLint cSkipPixels;
922	GLint cSkipImages;
923	#endif
924	} VMSVGAPACKPARAMS;
925	/** Pointer to saved texture packing parameters. */
926	typedef VMSVGAPACKPARAMS *PVMSVGAPACKPARAMS;
927	/** Pointer to const saved texture packing parameters. */
928	typedef VMSVGAPACKPARAMS const *PCVMSVGAPACKPARAMS;
929
930
931	/*******************************************************************************
932	* Global Variables *
933	*******************************************************************************/
934	/* Define the default light parameters as specified by MSDN. */
935	/* @todo move out; fetched from Wine */
936	const SVGA3dLightData vmsvga3d_default_light =
937	{
938	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
939	false, /* inWorldSpace */
940	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
941	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
942	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
943	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
944	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
945	0.0f, /* range */
946	0.0f, /* falloff */
947	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
948	0.0f, /* theta */
949	0.0f /* phi */
950	};
951
952
953	/*******************************************************************************
954	* Internal Functions *
955	*******************************************************************************/
956	static int vmsvga3dCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext, PVMSVGA3DSURFACE pSurface);
957	static int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags);
958	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
959	static void vmsvga3dSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
960	PVMSVGAPACKPARAMS pSave);
961	static void vmsvga3dRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
962	PCVMSVGAPACKPARAMS pSave);
963
964	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
965	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
966	#ifdef RT_OS_DARWIN
967	extern "C" int ExplicitlyLoadVBoxSVGA3DObjC(bool fResolveAllImports, PRTERRINFO pErrInfo);
968	#endif
969
970
971	/**
972	* Checks if the given OpenGL extension is supported.
973	*
974	* @returns true if supported, false if not.
975	* @param pState The VMSVGA3d state.
976	* @param fActualGLVersion The actual OpenGL version we're working against.
977	* @param fMinGLVersion The OpenGL version that introduced this feature
978	* into the core.
979	* @param pszWantedExtension The name of the OpenGL extension we want padded
980	* with one space at each end.
981	* @remarks Init time only.
982	*/
983	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float fMinGLVersion, const char *pszWantedExtension)
984	{
985	/* check padding. */
986	Assert(pszWantedExtension[0] == ' ');
987	Assert(pszWantedExtension[1] != ' ');
988	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
989
990	/* Look it up. */
991	bool fRet = false;
992	if (strstr(pState->pszExtensions, pszWantedExtension))
993	fRet = true;
994
995	/* Temporarily. Later start if (fMinGLVersion != 0.0 && fActualGLVersion >= fMinGLVersion) return true; */
996	#ifdef RT_OS_DARWIN
997	AssertMsg( fMinGLVersion == 0.0
998	\|\| fRet == (pState->fGLVersion >= fMinGLVersion)
999	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
1000	("%s actual:%d min:%d fRet=%d\n",
1001	pszWantedExtension, (int)(pState->fGLVersion * 10), (int)(fMinGLVersion * 10), fRet));
1002	#else
1003	AssertMsg(fMinGLVersion == 0.0 \|\| fRet == (pState->fGLVersion >= fMinGLVersion),
1004	("%s actual:%d min:%d fRet=%d\n",
1005	pszWantedExtension, (int)(pState->fGLVersion * 10), (int)(fMinGLVersion * 10), fRet));
1006	#endif
1007	return fRet;
1008	}
1009
1010
1011	/**
1012	* Outputs GL_EXTENSIONS list to the release log.
1013	*/
1014	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
1015	{
1016	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
1017	bool fBuffered = RTLogRelSetBuffering(true);
1018
1019	/*
1020	* Determin the column widths first.
1021	*/
1022	size_t acchWidths[4] = { 1, 1, 1, 1 };
1023	uint32_t i;
1024	const char *psz = pszExtensions;
1025	for (i = 0; ; i++)
1026	{
1027	while (*psz == ' ')
1028	psz++;
1029	if (!*psz)
1030	break;
1031
1032	const char *pszEnd = strchr(psz, ' ');
1033	AssertBreak(pszEnd);
1034	size_t cch = pszEnd - psz;
1035
1036	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
1037	if (acchWidths[iColumn] < cch)
1038	acchWidths[iColumn] = cch;
1039
1040	psz = pszEnd;
1041	}
1042
1043	/*
1044	* Output it.
1045	*/
1046	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
1047	psz = pszExtensions;
1048	for (i = 0; ; i++)
1049	{
1050	while (*psz == ' ')
1051	psz++;
1052	if (!*psz)
1053	break;
1054
1055	const char *pszEnd = strchr(psz, ' ');
1056	AssertBreak(pszEnd);
1057	size_t cch = pszEnd - psz;
1058
1059	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
1060	if (iColumn == 0)
1061	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
1062	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
1063	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
1064	else
1065	LogRel((" %.*s", cch, psz));
1066
1067	psz = pszEnd;
1068	}
1069
1070	RTLogRelSetBuffering(fBuffered);
1071	LogRel(("\n"));
1072	}
1073
1074	/**
1075	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
1076	* @a ppszExtensions.
1077	*
1078	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
1079	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
1080	* @param fGLProfileVersion The OpenGL profile version.
1081	*/
1082	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
1083	{
1084	int rc;
1085	*ppszExtensions = NULL;
1086
1087	/*
1088	* Try the old glGetString interface first.
1089	*/
1090	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
1091	if (pszExtensions)
1092	{
1093	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
1094	AssertLogRelRCReturn(rc, rc);
1095	}
1096	else
1097	{
1098	/*
1099	* The new interface where each extension string is retrieved separately.
1100	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
1101	* the above GL_EXTENSIONS error lingers on darwin. sucks.
1102	*/
1103	#ifndef GL_NUM_EXTENSIONS
1104	# define GL_NUM_EXTENSIONS 0x821D
1105	#endif
1106	GLint cExtensions = 1024;
1107	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
1108	Assert(cExtensions != 1024);
1109
1110	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
1111	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
1112
1113	rc = RTStrAAppend(ppszExtensions, " ");
1114	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
1115	{
1116	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
1117	if (pszExt)
1118	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
1119	}
1120	AssertRCReturn(rc, rc);
1121	}
1122
1123	#if 1
1124	/*
1125	* Add extensions promoted into the core OpenGL profile.
1126	*/
1127	static const struct
1128	{
1129	float fGLVersion;
1130	const char *pszzExtensions;
1131	} s_aPromotedExtensions[] =
1132	{
1133	{
1134	1.1f,
1135	" GL_EXT_vertex_array \0"
1136	" GL_EXT_polygon_offset \0"
1137	" GL_EXT_blend_logic_op \0"
1138	" GL_EXT_texture \0"
1139	" GL_EXT_copy_texture \0"
1140	" GL_EXT_subtexture \0"
1141	" GL_EXT_texture_object \0"
1142	" GL_ARB_framebuffer_object \0"
1143	" GL_ARB_map_buffer_range \0"
1144	" GL_ARB_vertex_array_object \0"
1145	"\0"
1146	},
1147	{
1148	1.2f,
1149	" EXT_texture3D \0"
1150	" EXT_bgra \0"
1151	" EXT_packed_pixels \0"
1152	" EXT_rescale_normal \0"
1153	" EXT_separate_specular_color \0"
1154	" SGIS_texture_edge_clamp \0"
1155	" SGIS_texture_lod \0"
1156	" EXT_draw_range_elements \0"
1157	"\0"
1158	},
1159	{
1160	1.3f,
1161	" GL_ARB_texture_compression \0"
1162	" GL_ARB_texture_cube_map \0"
1163	" GL_ARB_multisample \0"
1164	" GL_ARB_multitexture \0"
1165	" GL_ARB_texture_env_add \0"
1166	" GL_ARB_texture_env_combine \0"
1167	" GL_ARB_texture_env_dot3 \0"
1168	" GL_ARB_texture_border_clamp \0"
1169	" GL_ARB_transpose_matrix \0"
1170	"\0"
1171	},
1172	{
1173	1.5f,
1174	" GL_SGIS_generate_mipmap \0"
1175	/" GL_NV_blend_equare \0"/
1176	" GL_ARB_depth_texture \0"
1177	" GL_ARB_shadow \0"
1178	" GL_EXT_fog_coord \0"
1179	" GL_EXT_multi_draw_arrays \0"
1180	" GL_ARB_point_parameters \0"
1181	" GL_EXT_secondary_color \0"
1182	" GL_EXT_blend_func_separate \0"
1183	" GL_EXT_stencil_wrap \0"
1184	" GL_ARB_texture_env_crossbar \0"
1185	" GL_EXT_texture_lod_bias \0"
1186	" GL_ARB_texture_mirrored_repeat \0"
1187	" GL_ARB_window_pos \0"
1188	"\0"
1189	},
1190	{
1191	1.6f,
1192	" GL_ARB_vertex_buffer_object \0"
1193	" GL_ARB_occlusion_query \0"
1194	" GL_EXT_shadow_funcs \0"
1195	},
1196	{
1197	2.0f,
1198	" GL_ARB_shader_objects \0" /??/
1199	" GL_ARB_vertex_shader \0" /??/
1200	" GL_ARB_fragment_shader \0" /??/
1201	" GL_ARB_shading_language_100 \0" /??/
1202	" GL_ARB_draw_buffers \0"
1203	" GL_ARB_texture_non_power_of_two \0"
1204	" GL_ARB_point_sprite \0"
1205	" GL_ATI_separate_stencil \0"
1206	" GL_EXT_stencil_two_side \0"
1207	"\0"
1208	},
1209	{
1210	2.1f,
1211	" GL_ARB_pixel_buffer_object \0"
1212	" GL_EXT_texture_sRGB \0"
1213	"\0"
1214	},
1215	{
1216	3.0f,
1217	" GL_ARB_framebuffer_object \0"
1218	" GL_ARB_map_buffer_range \0"
1219	" GL_ARB_vertex_array_object \0"
1220	"\0"
1221	},
1222	{
1223	3.1f,
1224	" GL_ARB_copy_buffer \0"
1225	" GL_ARB_uniform_buffer_object \0"
1226	"\0"
1227	},
1228	{
1229	3.2f,
1230	" GL_ARB_vertex_array_bgra \0"
1231	" GL_ARB_draw_elements_base_vertex \0"
1232	" GL_ARB_fragment_coord_conventions \0"
1233	" GL_ARB_provoking_vertex \0"
1234	" GL_ARB_seamless_cube_map \0"
1235	" GL_ARB_texture_multisample \0"
1236	" GL_ARB_depth_clamp \0"
1237	" GL_ARB_sync \0"
1238	" GL_ARB_geometry_shader4 \0" /??/
1239	"\0"
1240	},
1241	{
1242	3.3f,
1243	" GL_ARB_blend_func_extended \0"
1244	" GL_ARB_sampler_objects \0"
1245	" GL_ARB_explicit_attrib_location \0"
1246	" GL_ARB_occlusion_query2 \0"
1247	" GL_ARB_shader_bit_encoding \0"
1248	" GL_ARB_texture_rgb10_a2ui \0"
1249	" GL_ARB_texture_swizzle \0"
1250	" GL_ARB_timer_query \0"
1251	" GL_ARB_vertex_type_2_10_10_10_rev \0"
1252	"\0"
1253	},
1254	{
1255	4.0f,
1256	" GL_ARB_texture_query_lod \0"
1257	" GL_ARB_draw_indirect \0"
1258	" GL_ARB_gpu_shader5 \0"
1259	" GL_ARB_gpu_shader_fp64 \0"
1260	" GL_ARB_shader_subroutine \0"
1261	" GL_ARB_tessellation_shader \0"
1262	" GL_ARB_texture_buffer_object_rgb32 \0"
1263	" GL_ARB_texture_cube_map_array \0"
1264	" GL_ARB_texture_gather \0"
1265	" GL_ARB_transform_feedback2 \0"
1266	" GL_ARB_transform_feedback3 \0"
1267	"\0"
1268	},
1269	{
1270	4.1f,
1271	" GL_ARB_ES2_compatibility \0"
1272	" GL_ARB_get_program_binary \0"
1273	" GL_ARB_separate_shader_objects \0"
1274	" GL_ARB_shader_precision \0"
1275	" GL_ARB_vertex_attrib_64bit \0"
1276	" GL_ARB_viewport_array \0"
1277	"\0"
1278	}
1279	};
1280
1281	uint32_t cPromoted = 0;
1282	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
1283	{
1284	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
1285	while (*pszExt)
1286	{
1287	size_t cchExt = strlen(pszExt);
1288	Assert(cchExt > 3);
1289	Assert(pszExt[0] == ' ');
1290	Assert(pszExt[1] != ' ');
1291	Assert(pszExt[cchExt - 2] != ' ');
1292	Assert(pszExt[cchExt - 1] == ' ');
1293
1294	if (strstr(*ppszExtensions, pszExt) == NULL)
1295	{
1296	if (cPromoted++ == 0)
1297	{
1298	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
1299	AssertRCReturn(rc, rc);
1300	}
1301
1302	rc = RTStrAAppend(ppszExtensions, pszExt);
1303	AssertRCReturn(rc, rc);
1304	}
1305
1306	pszExt = strchr(pszExt, '\0') + 1;
1307	}
1308	}
1309	#endif
1310
1311	return VINF_SUCCESS;
1312	}
1313
1314	/**
1315	* @interface_method_impl{VBOXVMSVGASHADERIF, pfnSwitchInitProfile}
1316	*/
1317	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
1318	{
1319	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1320	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
1321	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
1322	#else
1323	NOREF(pThis);
1324	NOREF(fOtherProfile);
1325	#endif
1326	}
1327
1328
1329	/**
1330	* @interface_method_impl{VBOXVMSVGASHADERIF, pfnGetNextExtension}
1331	*/
1332	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
1333	char *pszBuf, size_t cbBuf, bool fOtherProfile)
1334	{
1335	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
1336	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
1337	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
1338	while (*pszCur == ' ')
1339	pszCur++;
1340	if (!*pszCur)
1341	return false;
1342
1343	const char *pszEnd = strchr(pszCur, ' ');
1344	AssertReturn(pszEnd, false);
1345	size_t cch = pszEnd - pszCur;
1346	if (cch < cbBuf)
1347	{
1348	memcpy(pszBuf, pszCur, cch);
1349	pszBuf[cch] = '\0';
1350	}
1351	else if (cbBuf > 0)
1352	{
1353	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
1354	pszBuf[cbBuf - 1] = '\0';
1355	}
1356
1357	ppvEnumCtx = (void )pszEnd;
1358	return true;
1359	}
1360
1361
1362	/**
1363	* Initializes the VMSVGA3D state during VGA device construction.
1364	*
1365	* Failure are generally not fatal, 3D support will just be disabled.
1366	*
1367	* @returns VBox status code.
1368	* @param pThis The VGA device state where svga.p3dState will be modified.
1369	*/
1370	int vmsvga3dInit(PVGASTATE pThis)
1371	{
1372	AssertCompile(GL_TRUE == 1);
1373	AssertCompile(GL_FALSE == 0);
1374
1375	/*
1376	* Load and resolve imports from the external shared libraries.
1377	*/
1378	RTERRINFOSTATIC ErrInfo;
1379	int rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
1380	if (RT_FAILURE(rc))
1381	{
1382	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
1383	return rc;
1384	}
1385	#ifdef RT_OS_DARWIN
1386	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
1387	if (RT_FAILURE(rc))
1388	{
1389	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
1390	return rc;
1391	}
1392	#endif
1393
1394	/*
1395	* Allocate the state.
1396	*/
1397	pThis->svga.p3dState = RTMemAllocZ(sizeof(VMSVGA3DSTATE));
1398	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1399
1400	#ifdef RT_OS_WINDOWS
1401	/* Create event semaphore and async IO thread. */
1402	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
1403	rc = RTSemEventCreate(&pState->WndRequestSem);
1404	if (RT_SUCCESS(rc))
1405	{
1406	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
1407	"VMSVGA3DWND");
1408	if (RT_SUCCESS(rc))
1409	return VINF_SUCCESS;
1410
1411	/* bail out. */
1412	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
1413	RTSemEventDestroy(pState->WndRequestSem);
1414	}
1415	else
1416	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
1417	RTMemFree(pThis->svga.p3dState);
1418	pThis->svga.p3dState = NULL;
1419	return rc;
1420	#else
1421	return VINF_SUCCESS;
1422	#endif
1423	}
1424
1425	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
1426	int vmsvga3dPowerOn(PVGASTATE pThis)
1427	{
1428	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
1429	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1430	PVMSVGA3DCONTEXT pContext;
1431	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1432	PVMSVGA3DCONTEXT pOtherCtx;
1433	#endif
1434	int rc;
1435
1436	if (pState->fGLVersion != 0.0)
1437	return VINF_SUCCESS; /* already initialized (load state) */
1438
1439	/*
1440	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
1441	*/
1442	rc = vmsvga3dContextDefineOgl(pThis, 1, VMSVGA3D_DEF_CTX_F_INIT);
1443	AssertRCReturn(rc, rc);
1444
1445	pContext = pState->papContexts[1];
1446	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1447
1448	LogRel(("VMSVGA3d: OpenGL version: %s\n"
1449	"VMSVGA3d: OpenGL Vendor: %s\n"
1450	"VMSVGA3d: OpenGL Renderer: %s\n"
1451	"VMSVGA3d: OpenGL shader language version: %s\n",
1452	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
1453	glGetString(GL_SHADING_LANGUAGE_VERSION)));
1454
1455	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
1456	AssertRCReturn(rc, rc);
1457	vmsvga3dLogRelExtensions("", pState->pszExtensions);
1458
1459	pState->fGLVersion = atof((const char *)glGetString(GL_VERSION));
1460
1461
1462	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1463	/*
1464	* Get the extension list for the alternative profile so we can better
1465	* figure out the shader model and stuff.
1466	*/
1467	rc = vmsvga3dContextDefineOgl(pThis, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
1468	AssertLogRelRCReturn(rc, rc);
1469	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
1470
1471	pOtherCtx = pState->papContexts[2];
1472	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
1473
1474	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
1475	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
1476	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
1477	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
1478	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
1479	glGetString(GL_SHADING_LANGUAGE_VERSION)));
1480
1481	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
1482	AssertRCReturn(rc, rc);
1483	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
1484
1485	pState->fOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
1486
1487	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1488	#else
1489	pState->pszOtherExtensions = (char *)"";
1490	pState->fOtherGLVersion = pState->fGLVersion;
1491	#endif
1492
1493
1494	if (vmsvga3dCheckGLExtension(pState, 3.0f, " GL_ARB_framebuffer_object "))
1495	{
1496	pState->ext.glIsRenderbuffer = (PFNGLISRENDERBUFFERPROC)OGLGETPROCADDRESS("glIsRenderbuffer");
1497	pState->ext.glBindRenderbuffer = (PFNGLBINDRENDERBUFFERPROC)OGLGETPROCADDRESS("glBindRenderbuffer");
1498	pState->ext.glDeleteRenderbuffers = (PFNGLDELETERENDERBUFFERSPROC)OGLGETPROCADDRESS("glDeleteRenderbuffers");
1499	pState->ext.glGenRenderbuffers = (PFNGLGENRENDERBUFFERSPROC)OGLGETPROCADDRESS("glGenRenderbuffers");
1500	pState->ext.glRenderbufferStorage = (PFNGLRENDERBUFFERSTORAGEPROC)OGLGETPROCADDRESS("glRenderbufferStorage");
1501	pState->ext.glGetRenderbufferParameteriv = (PFNGLGETRENDERBUFFERPARAMETERIVPROC)OGLGETPROCADDRESS("glGetRenderbufferParameteriv");
1502	pState->ext.glIsFramebuffer = (PFNGLISFRAMEBUFFERPROC)OGLGETPROCADDRESS("glIsFramebuffer");
1503	pState->ext.glBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBindFramebuffer");
1504	pState->ext.glDeleteFramebuffers = (PFNGLDELETEFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteFramebuffers");
1505	pState->ext.glGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glGenFramebuffers");
1506	pState->ext.glCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC)OGLGETPROCADDRESS("glCheckFramebufferStatus");
1507	pState->ext.glFramebufferTexture1D = (PFNGLFRAMEBUFFERTEXTURE1DPROC)OGLGETPROCADDRESS("glFramebufferTexture1D");
1508	pState->ext.glFramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC)OGLGETPROCADDRESS("glFramebufferTexture2D");
1509	pState->ext.glFramebufferTexture3D = (PFNGLFRAMEBUFFERTEXTURE3DPROC)OGLGETPROCADDRESS("glFramebufferTexture3D");
1510	pState->ext.glFramebufferRenderbuffer = (PFNGLFRAMEBUFFERRENDERBUFFERPROC)OGLGETPROCADDRESS("glFramebufferRenderbuffer");
1511	pState->ext.glGetFramebufferAttachmentParameteriv = (PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC)OGLGETPROCADDRESS("glGetFramebufferAttachmentParameteriv");
1512	pState->ext.glGenerateMipmap = (PFNGLGENERATEMIPMAPPROC)OGLGETPROCADDRESS("glGenerateMipmap");
1513	pState->ext.glBlitFramebuffer = (PFNGLBLITFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBlitFramebuffer");
1514	pState->ext.glRenderbufferStorageMultisample = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC)OGLGETPROCADDRESS("glRenderbufferStorageMultisample");
1515	pState->ext.glFramebufferTextureLayer = (PFNGLFRAMEBUFFERTEXTURELAYERPROC)OGLGETPROCADDRESS("glFramebufferTextureLayer");
1516	}
1517	pState->ext.glPointParameterf = (PFNGLPOINTPARAMETERFPROC)OGLGETPROCADDRESS("glPointParameterf");
1518	AssertMsgReturn(pState->ext.glPointParameterf, ("glPointParameterf missing"), VERR_NOT_IMPLEMENTED);
1519	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
1520	pState->ext.glBlendColor = (PFNGLBLENDCOLORPROC)OGLGETPROCADDRESS("glBlendColor");
1521	AssertMsgReturn(pState->ext.glBlendColor, ("glBlendColor missing"), VERR_NOT_IMPLEMENTED);
1522	pState->ext.glBlendEquation = (PFNGLBLENDEQUATIONPROC)OGLGETPROCADDRESS("glBlendEquation");
1523	AssertMsgReturn(pState->ext.glBlendEquation, ("glBlendEquation missing"), VERR_NOT_IMPLEMENTED);
1524	#endif
1525	pState->ext.glBlendEquationSeparate = (PFNGLBLENDEQUATIONSEPARATEPROC)OGLGETPROCADDRESS("glBlendEquationSeparate");
1526	AssertMsgReturn(pState->ext.glBlendEquationSeparate, ("glBlendEquationSeparate missing"), VERR_NOT_IMPLEMENTED);
1527	pState->ext.glBlendFuncSeparate = (PFNGLBLENDFUNCSEPARATEPROC)OGLGETPROCADDRESS("glBlendFuncSeparate");
1528	AssertMsgReturn(pState->ext.glBlendFuncSeparate, ("glBlendFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
1529	pState->ext.glStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC)OGLGETPROCADDRESS("glStencilOpSeparate");
1530	AssertMsgReturn(pState->ext.glStencilOpSeparate, ("glStencilOpSeparate missing"), VERR_NOT_IMPLEMENTED);
1531	pState->ext.glStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC)OGLGETPROCADDRESS("glStencilFuncSeparate");
1532	AssertMsgReturn(pState->ext.glStencilFuncSeparate, ("glStencilFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
1533	pState->ext.glBindBuffer = (PFNGLBINDBUFFERPROC)OGLGETPROCADDRESS("glBindBuffer");
1534	AssertMsgReturn(pState->ext.glBindBuffer, ("glBindBuffer missing"), VERR_NOT_IMPLEMENTED);
1535	pState->ext.glDeleteBuffers = (PFNGLDELETEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteBuffers");
1536	AssertMsgReturn(pState->ext.glDeleteBuffers, ("glDeleteBuffers missing"), VERR_NOT_IMPLEMENTED);
1537	pState->ext.glGenBuffers = (PFNGLGENBUFFERSPROC)OGLGETPROCADDRESS("glGenBuffers");
1538	AssertMsgReturn(pState->ext.glGenBuffers, ("glGenBuffers missing"), VERR_NOT_IMPLEMENTED);
1539	pState->ext.glBufferData = (PFNGLBUFFERDATAPROC)OGLGETPROCADDRESS("glBufferData");
1540	AssertMsgReturn(pState->ext.glBufferData, ("glBufferData missing"), VERR_NOT_IMPLEMENTED);
1541	pState->ext.glMapBuffer = (PFNGLMAPBUFFERPROC)OGLGETPROCADDRESS("glMapBuffer");
1542	AssertMsgReturn(pState->ext.glMapBuffer, ("glMapBuffer missing"), VERR_NOT_IMPLEMENTED);
1543	pState->ext.glUnmapBuffer = (PFNGLUNMAPBUFFERPROC)OGLGETPROCADDRESS("glUnmapBuffer");
1544	AssertMsgReturn(pState->ext.glUnmapBuffer, ("glUnmapBuffer missing"), VERR_NOT_IMPLEMENTED);
1545	pState->ext.glEnableVertexAttribArray = (PFNGLENABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glEnableVertexAttribArray");
1546	AssertMsgReturn(pState->ext.glEnableVertexAttribArray, ("glEnableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
1547	pState->ext.glDisableVertexAttribArray = (PFNGLDISABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glDisableVertexAttribArray");
1548	AssertMsgReturn(pState->ext.glDisableVertexAttribArray, ("glDisableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
1549	pState->ext.glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC)OGLGETPROCADDRESS("glVertexAttribPointer");
1550	AssertMsgReturn(pState->ext.glVertexAttribPointer, ("glVertexAttribPointer missing"), VERR_NOT_IMPLEMENTED);
1551	pState->ext.glFogCoordPointer = (PFNGLFOGCOORDPOINTERPROC)OGLGETPROCADDRESS("glFogCoordPointer");
1552	AssertMsgReturn(pState->ext.glFogCoordPointer, ("glFogCoordPointer missing"), VERR_NOT_IMPLEMENTED);
1553	pState->ext.glActiveTexture = (PFNGLACTIVETEXTUREPROC)OGLGETPROCADDRESS("glActiveTexture");
1554	AssertMsgReturn(pState->ext.glActiveTexture, ("glActiveTexture missing"), VERR_NOT_IMPLEMENTED);
1555	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
1556	pState->ext.glClientActiveTexture = (PFNGLCLIENTACTIVETEXTUREPROC)OGLGETPROCADDRESS("glClientActiveTexture");
1557	AssertMsgReturn(pState->ext.glClientActiveTexture, ("glClientActiveTexture missing"), VERR_NOT_IMPLEMENTED);
1558	#endif
1559	pState->ext.glGetProgramivARB = (PFNGLGETPROGRAMIVARBPROC)OGLGETPROCADDRESS("glGetProgramivARB");
1560	AssertMsgReturn(pState->ext.glGetProgramivARB, ("glGetProgramivARB missing"), VERR_NOT_IMPLEMENTED);
1561
1562	/* OpenGL 3.2 core */
1563	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_draw_elements_base_vertex "))
1564	{
1565	pState->ext.glDrawElementsBaseVertex = (PFNGLDRAWELEMENTSBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsBaseVertex");
1566	pState->ext.glDrawElementsInstancedBaseVertex = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsInstancedBaseVertex");
1567	}
1568	else
1569	LogRel(("VMSVGA3d: missing extension GL_ARB_draw_elements_base_vertex\n"));
1570
1571	/* OpenGL 3.2 core */
1572	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_provoking_vertex "))
1573	{
1574	pState->ext.glProvokingVertex = (PFNGLPROVOKINGVERTEXPROC)OGLGETPROCADDRESS("glProvokingVertex");
1575	}
1576	else
1577	LogRel(("VMSVGA3d: missing extension GL_ARB_provoking_vertex\n"));
1578
1579	/* Extension support */
1580	#if defined(RT_OS_DARWIN)
1581	/** @todo OpenGL version history suggest this, verify... */
1582	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 2.0f, " GL_EXT_stencil_two_side ");
1583	#else
1584	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_stencil_two_side ");
1585	#endif
1586
1587	/*
1588	* Initialize the capabilities with sensible defaults.
1589	*/
1590	pState->caps.maxActiveLights = 1;
1591	pState->caps.maxTextureBufferSize = 65536;
1592	pState->caps.maxTextures = 1;
1593	pState->caps.maxClipDistances = 4;
1594	pState->caps.maxColorAttachments = 1;
1595	pState->caps.maxRectangleTextureSize = 2048;
1596	pState->caps.maxTextureAnisotropy = 2;
1597	pState->caps.maxVertexShaderInstructions = 1024;
1598	pState->caps.maxFragmentShaderInstructions = 1024;
1599	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
1600	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
1601	pState->caps.flPointSize[0] = 1;
1602	pState->caps.flPointSize[1] = 1;
1603
1604	/*
1605	* Query capabilities
1606	*/
1607	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
1608	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_BUFFER_SIZE, &pState->caps.maxTextureBufferSize));
1609	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
1610	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
1611	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
1612	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
1613	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1614	#else
1615	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
1616	#endif
1617	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
1618	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
1619	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
1620	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
1621
1622	if (pState->ext.glGetProgramivARB)
1623	{
1624	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
1625	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
1626	&pState->caps.maxFragmentShaderTemps));
1627	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
1628	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
1629	&pState->caps.maxFragmentShaderInstructions));
1630	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
1631	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
1632	&pState->caps.maxVertexShaderTemps));
1633	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
1634	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
1635	&pState->caps.maxVertexShaderInstructions));
1636	}
1637	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
1638
1639	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
1640	* ARB Assembly Language
1641	* These are done through testing the presence of extensions. You should test them in this order:
1642	* GL_NV_gpu_program4: SM 4.0 or better.
1643	* GL_NV_vertex_program3: SM 3.0 or better.
1644	* GL_ARB_fragment_program: SM 2.0 or better.
1645	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
1646	*
1647	*/
1648	/** @todo: distinguish between vertex and pixel shaders??? */
1649	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
1650	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
1651	{
1652	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
1653	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
1654	}
1655	else
1656	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
1657	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
1658	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
1659	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
1660	)
1661	{
1662	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
1663	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
1664	}
1665	else
1666	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
1667	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
1668	{
1669	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
1670	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
1671	}
1672	else
1673	{
1674	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
1675	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
1676	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
1677	}
1678
1679	if (!vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_vertex_array_bgra "))
1680	{
1681	/** @todo Intel drivers don't support this extension! */
1682	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
1683	}
1684	#if 0
1685	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
1686	SVGA3D_DEVCAP_QUERY_TYPES = 15,
1687	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
1688	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
1689	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
1690	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
1691	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
1692	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
1693	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
1694	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
1695	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
1696	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
1697	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
1698	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
1699	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
1700	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
1701	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
1702	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
1703	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
1704	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
1705	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
1706	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
1707	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
1708	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
1709	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
1710	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
1711	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
1712	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
1713	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
1714	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
1715	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
1716	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
1717	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
1718	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
1719	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
1720	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
1721	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
1722	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
1723	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
1724	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
1725	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
1726	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
1727	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
1728	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
1729	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
1730	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
1731	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
1732	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
1733	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
1734	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
1735	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
1736	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
1737	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
1738	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
1739	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
1740	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
1741	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
1742	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
1743	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
1744	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
1745	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
1746	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
1747	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
1748	#endif
1749
1750	LogRel(("VMSVGA3d: Capabilities:\n"));
1751	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d maxTextureBufferSize=%d\n",
1752	pState->caps.maxActiveLights, pState->caps.maxTextures, pState->caps.maxTextureBufferSize));
1753	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
1754	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
1755	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
1756	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
1757	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
1758	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
1759	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
1760	pState->caps.maxFragmentShaderTemps,
1761	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
1762	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
1763	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
1764	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
1765
1766
1767	/* Initialize the shader library. */
1768	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1769	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1770	rc = ShaderInitLib(&pState->ShaderIf);
1771	AssertRC(rc);
1772
1773	/* Cleanup */
1774	rc = vmsvga3dContextDestroy(pThis, 1);
1775	AssertRC(rc);
1776	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1777	rc = vmsvga3dContextDestroy(pThis, 2);
1778	AssertRC(rc);
1779	#endif
1780
1781	if ( pState->fGLVersion < 3.0
1782	&& pState->fOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1783	{
1784	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1785	return VERR_NOT_IMPLEMENTED;
1786	}
1787	if ( !pState->ext.glIsRenderbuffer
1788	\|\| !pState->ext.glBindRenderbuffer
1789	\|\| !pState->ext.glDeleteRenderbuffers
1790	\|\| !pState->ext.glGenRenderbuffers
1791	\|\| !pState->ext.glRenderbufferStorage
1792	\|\| !pState->ext.glGetRenderbufferParameteriv
1793	\|\| !pState->ext.glIsFramebuffer
1794	\|\| !pState->ext.glBindFramebuffer
1795	\|\| !pState->ext.glDeleteFramebuffers
1796	\|\| !pState->ext.glGenFramebuffers
1797	\|\| !pState->ext.glCheckFramebufferStatus
1798	\|\| !pState->ext.glFramebufferTexture1D
1799	\|\| !pState->ext.glFramebufferTexture2D
1800	\|\| !pState->ext.glFramebufferTexture3D
1801	\|\| !pState->ext.glFramebufferRenderbuffer
1802	\|\| !pState->ext.glGetFramebufferAttachmentParameteriv
1803	\|\| !pState->ext.glGenerateMipmap
1804	\|\| !pState->ext.glBlitFramebuffer
1805	\|\| !pState->ext.glRenderbufferStorageMultisample
1806	\|\| !pState->ext.glFramebufferTextureLayer)
1807	{
1808	LogRel(("VMSVGA3d: missing required OpenGL extension; aborting\n"));
1809	return VERR_NOT_IMPLEMENTED;
1810	}
1811
1812	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
1813	pState->idTestContext = SVGA_ID_INVALID;
1814	#endif
1815	return VINF_SUCCESS;
1816	}
1817
1818	int vmsvga3dReset(PVGASTATE pThis)
1819	{
1820	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
1821	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1822
1823	/* Destroy all leftover surfaces. */
1824	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1825	{
1826	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1827	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1828	}
1829
1830	/* Destroy all leftover contexts. */
1831	for (uint32_t i = 0; i < pState->cContexts; i++)
1832	{
1833	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1834	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1835	}
1836	return VINF_SUCCESS;
1837	}
1838
1839	int vmsvga3dTerminate(PVGASTATE pThis)
1840	{
1841	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
1842	AssertReturn(pState, VERR_WRONG_ORDER);
1843	int rc;
1844
1845	rc = vmsvga3dReset(pThis);
1846	AssertRCReturn(rc, rc);
1847
1848	/* Terminate the shader library. */
1849	rc = ShaderDestroyLib();
1850	AssertRC(rc);
1851
1852	#ifdef RT_OS_WINDOWS
1853	/* Terminate the window creation thread. */
1854	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1855	AssertRCReturn(rc, rc);
1856
1857	RTSemEventDestroy(pState->WndRequestSem);
1858	#elif defined(RT_OS_DARWIN)
1859
1860	#elif defined(RT_OS_LINUX)
1861	/* signal to the thread that it is supposed to exit */
1862	pState->bTerminate = true;
1863	/* wait for it to terminate */
1864	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1865	AssertRC(rc);
1866	XCloseDisplay(pState->display);
1867	#endif
1868
1869	RTStrFree(pState->pszExtensions);
1870	pState->pszExtensions = NULL;
1871	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1872	RTStrFree(pState->pszOtherExtensions);
1873	#endif
1874	pState->pszOtherExtensions = NULL;
1875
1876	return VINF_SUCCESS;
1877	}
1878
1879	/* Shared functions that depend on private structure definitions. */
1880	#define VMSVGA3D_OPENGL
1881	#include "DevVGA-SVGA3d-shared.h"
1882
1883	/**
1884	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1885	* given surface format capability.
1886	*
1887	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1888	* @param pState3D The 3D state.
1889	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1890	*
1891	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1892	* of implicit guest expectations:
1893	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1894	*/
1895	static uint32_t vmsvga3dGetSurfaceFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1896	{
1897	uint32_t result = 0;
1898
1899	/* @todo missing:
1900	*
1901	* SVGA3DFORMAT_OP_PIXELSIZE
1902	*/
1903
1904	switch (idx3dCaps)
1905	{
1906	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1907	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1908	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1909	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1910	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1911	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1912	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1913	break;
1914
1915	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1916	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1917	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1918	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1919	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1920	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1921	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1922	break;
1923	}
1924
1925	/* @todo check hardware caps! */
1926	switch (idx3dCaps)
1927	{
1928	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1929	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1930	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1931	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1932	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1933	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1934	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1935	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1936	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1937	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1938	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1939	result \|= SVGA3DFORMAT_OP_TEXTURE
1940	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1941	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1942	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1943	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1944	\| SVGA3DFORMAT_OP_CUBETEXTURE
1945	\| SVGA3DFORMAT_OP_SRGBREAD
1946	\| SVGA3DFORMAT_OP_SRGBWRITE;
1947	break;
1948
1949	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1950	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1951	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1952	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1953	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1954	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1955	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1956	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1957	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1958	break;
1959
1960	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1961	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1962	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1963	result \|= SVGA3DFORMAT_OP_TEXTURE
1964	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1965	\| SVGA3DFORMAT_OP_CUBETEXTURE
1966	\| SVGA3DFORMAT_OP_SRGBREAD;
1967	break;
1968
1969	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1970	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1971	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1972	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1973	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1974	break;
1975
1976	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1977	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1978	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1979	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1980	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1981	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1982	break;
1983
1984	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1985	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1986	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1987
1988	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1989	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1990	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1991	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1992	break;
1993	}
1994	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1995
1996	return result;
1997	}
1998
1999	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
2000	{
2001	uint32_t result = 0;
2002
2003	/* @todo test this somehow */
2004	result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
2005
2006	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
2007	return result;
2008	}
2009
2010
2011	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
2012	{
2013	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
2014	AssertReturn(pState, VERR_NO_MEMORY);
2015	int rc = VINF_SUCCESS;
2016
2017	*pu32Val = 0;
2018
2019	/*
2020	* The capabilities access by current (2015-03-01) linux sources (gallium,
2021	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
2022	* aren't access.
2023	*/
2024
2025	switch (idx3dCaps)
2026	{
2027	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
2028	case SVGA3D_DEVCAP_3D:
2029	pu32Val = 1; / boolean? */
2030	break;
2031
2032	case SVGA3D_DEVCAP_MAX_LIGHTS:
2033	*pu32Val = pState->caps.maxActiveLights;
2034	break;
2035
2036	case SVGA3D_DEVCAP_MAX_TEXTURES:
2037	*pu32Val = pState->caps.maxTextures;
2038	break;
2039
2040	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
2041	*pu32Val = pState->caps.maxClipDistances;
2042	break;
2043
2044	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
2045	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
2046	*pu32Val = pState->caps.vertexShaderVersion;
2047	break;
2048
2049	case SVGA3D_DEVCAP_VERTEX_SHADER:
2050	/* boolean? */
2051	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
2052	break;
2053
2054	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
2055	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
2056	*pu32Val = pState->caps.fragmentShaderVersion;
2057	break;
2058
2059	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
2060	/* boolean? */
2061	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
2062	break;
2063
2064	case SVGA3D_DEVCAP_S23E8_TEXTURES:
2065	case SVGA3D_DEVCAP_S10E5_TEXTURES:
2066	/* Must be obsolete by now; surface format caps specify the same thing. */
2067	rc = VERR_INVALID_PARAMETER;
2068	break;
2069
2070	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
2071	break;
2072
2073	/*
2074	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
2075	* return TRUE. Even on physical hardware that does not support
2076	* these formats natively, the SVGA3D device will provide an emulation
2077	* which should be invisible to the guest OS.
2078	*/
2079	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
2080	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
2081	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
2082	*pu32Val = 1;
2083	break;
2084
2085	case SVGA3D_DEVCAP_QUERY_TYPES:
2086	break;
2087
2088	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
2089	break;
2090
2091	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
2092	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
2093	AssertCompile(sizeof(uint32_t) == sizeof(float));
2094	(float )pu32Val = pState->caps.flPointSize[1];
2095	break;
2096
2097	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
2098	/* @todo ?? */
2099	rc = VERR_INVALID_PARAMETER;
2100	break;
2101
2102	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
2103	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
2104	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
2105	*pu32Val = pState->caps.maxRectangleTextureSize;
2106	break;
2107
2108	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
2109	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
2110	//*pu32Val = pCaps->MaxVolumeExtent;
2111	break;
2112
2113	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
2114	pu32Val = 32768; / hardcoded in Wine */
2115	break;
2116
2117	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
2118	//*pu32Val = pCaps->MaxTextureAspectRatio;
2119	break;
2120
2121	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
2122	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
2123	*pu32Val = pState->caps.maxTextureAnisotropy;
2124	break;
2125
2126	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
2127	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
2128	pu32Val = 0xFFFFF; / hardcoded in Wine */
2129	break;
2130
2131	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
2132	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
2133	*pu32Val = pState->caps.maxVertexShaderInstructions;
2134	break;
2135
2136	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
2137	*pu32Val = pState->caps.maxFragmentShaderInstructions;
2138	break;
2139
2140	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
2141	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
2142	*pu32Val = pState->caps.maxVertexShaderTemps;
2143	break;
2144
2145	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
2146	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
2147	*pu32Val = pState->caps.maxFragmentShaderTemps;
2148	break;
2149
2150	case SVGA3D_DEVCAP_TEXTURE_OPS:
2151	break;
2152
2153	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
2154	break;
2155
2156	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
2157	break;
2158
2159	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
2160	break;
2161
2162	case SVGA3D_DEVCAP_SUPERSAMPLE:
2163	break;
2164
2165	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
2166	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
2167	break;
2168
2169	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
2170	break;
2171
2172	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /* @todo same thing? */
2173	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
2174	*pu32Val = pState->caps.maxColorAttachments;
2175	break;
2176
2177	/*
2178	* This is the maximum number of SVGA context IDs that the guest
2179	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
2180	*/
2181	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
2182	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
2183	break;
2184
2185	/*
2186	* This is the maximum number of SVGA surface IDs that the guest
2187	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
2188	*/
2189	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
2190	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
2191	break;
2192
2193	#if 0 /* Appeared more recently, not yet implemented. */
2194	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
2195	case SVGA3D_DEVCAP_LINE_AA:
2196	break;
2197	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
2198	case SVGA3D_DEVCAP_LINE_STIPPLE:
2199	break;
2200	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
2201	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
2202	break;
2203	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
2204	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
2205	break;
2206	#endif
2207
2208	/*
2209	* Supported surface formats.
2210	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
2211	*/
2212	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
2213	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
2214	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
2215	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
2216	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
2217	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
2218	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
2219	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
2220	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
2221	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
2222	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
2223	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
2224	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
2225	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
2226	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
2227	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
2228	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
2229	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
2230	*pu32Val = vmsvga3dGetSurfaceFormatSupport(pState, idx3dCaps);
2231	break;
2232
2233	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
2234	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
2235	pu32Val = 0; / apparently not supported in OpenGL */
2236	break;
2237
2238	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
2239	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
2240	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
2241	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
2242	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
2243	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
2244	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
2245	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
2246	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
2247	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
2248	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
2249	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
2250	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
2251	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
2252	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
2253	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
2254	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
2255	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
2256	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
2257	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
2258	*pu32Val = vmsvga3dGetSurfaceFormatSupport(pState, idx3dCaps);
2259	break;
2260
2261	/* Linux: Not referenced in current sources. */
2262	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
2263	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
2264	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
2265	rc = VERR_INVALID_PARAMETER;
2266	*pu32Val = 0;
2267	break;
2268
2269	default:
2270	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
2271	rc = VERR_INVALID_PARAMETER;
2272	break;
2273	}
2274
2275	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
2276	return rc;
2277	}
2278
2279	/**
2280	* Convert SVGA format value to its OpenGL equivalent
2281	*
2282	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
2283	* help from wined3dformat_from_d3dformat().
2284	*/
2285	static void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
2286	{
2287	switch (format)
2288	{
2289	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
2290	pSurface->internalFormatGL = GL_RGB8;
2291	pSurface->formatGL = GL_BGRA;
2292	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
2293	break;
2294	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
2295	pSurface->internalFormatGL = GL_RGBA8;
2296	pSurface->formatGL = GL_BGRA;
2297	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
2298	break;
2299	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
2300	pSurface->internalFormatGL = GL_RGB5;
2301	pSurface->formatGL = GL_RGB;
2302	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
2303	AssertMsgFailed(("Test me - SVGA3D_R5G6B5\n"));
2304	break;
2305	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
2306	pSurface->internalFormatGL = GL_RGB5;
2307	pSurface->formatGL = GL_BGRA;
2308	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
2309	AssertMsgFailed(("Test me - SVGA3D_X1R5G5B5\n"));
2310	break;
2311	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
2312	pSurface->internalFormatGL = GL_RGB5_A1;
2313	pSurface->formatGL = GL_BGRA;
2314	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
2315	AssertMsgFailed(("Test me - SVGA3D_A1R5G5B5\n"));
2316	break;
2317	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
2318	pSurface->internalFormatGL = GL_RGBA4;
2319	pSurface->formatGL = GL_BGRA;
2320	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
2321	AssertMsgFailed(("Test me - SVGA3D_A4R4G4B4\n"));
2322	break;
2323
2324	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
2325	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
2326	pSurface->formatGL = GL_DEPTH_COMPONENT;
2327	pSurface->typeGL = GL_UNSIGNED_INT;
2328	break;
2329	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
2330	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
2331	pSurface->formatGL = GL_DEPTH_COMPONENT;
2332	pSurface->typeGL = GL_UNSIGNED_SHORT;
2333	//AssertMsgFailed(("Test me - SVGA3D_Z_D16\n"));
2334	break;
2335	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
2336	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
2337	pSurface->formatGL = GL_DEPTH_STENCIL;
2338	pSurface->typeGL = GL_UNSIGNED_INT;
2339	break;
2340	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
2341	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /* @todo ??? */
2342	pSurface->formatGL = GL_DEPTH_STENCIL;
2343	pSurface->typeGL = GL_UNSIGNED_SHORT;
2344	/** @todo Wine sources hints at no hw support for this, so test this one! */
2345	AssertMsgFailed(("Test me - SVGA3D_Z_D15S1\n"));
2346	break;
2347	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
2348	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
2349	pSurface->formatGL = GL_DEPTH_COMPONENT;
2350	pSurface->typeGL = GL_UNSIGNED_INT;
2351	break;
2352
2353	/* Advanced D3D9 depth formats. */
2354	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
2355	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
2356	pSurface->formatGL = GL_DEPTH_COMPONENT;
2357	pSurface->typeGL = GL_FLOAT;
2358	break;
2359
2360	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
2361	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
2362	pSurface->formatGL = GL_DEPTH_COMPONENT;
2363	pSurface->typeGL = GL_FLOAT; /* ??? */
2364	break;
2365
2366	case SVGA3D_Z_D24S8_INT: /* D3DFMT_??? - not supported */
2367	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
2368	pSurface->formatGL = GL_DEPTH_STENCIL;
2369	pSurface->typeGL = GL_INT; /* ??? */
2370	break;
2371
2372	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
2373	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
2374	#if 0
2375	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
2376	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
2377	#else /* wine suggests: */
2378	pSurface->formatGL = GL_RGBA;
2379	pSurface->typeGL = GL_UNSIGNED_BYTE;
2380	AssertMsgFailed(("Test me - SVGA3D_DXT1\n"));
2381	#endif
2382	break;
2383
2384	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
2385	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
2386	#if 0 /** @todo this needs testing... */
2387	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
2388	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
2389	#else /* wine suggests: */
2390	pSurface->formatGL = GL_RGBA;
2391	pSurface->typeGL = GL_UNSIGNED_BYTE;
2392	AssertMsgFailed(("Test me - SVGA3D_DXT3\n"));
2393	#endif
2394	break;
2395
2396	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
2397	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
2398	#if 0 /** @todo this needs testing... */
2399	pSurface->formatGL = GL_RGBA_S3TC;
2400	pSurface->typeGL = GL_UNSIGNED_INT;
2401	#else /* wine suggests: */
2402	pSurface->formatGL = GL_RGBA;
2403	pSurface->typeGL = GL_UNSIGNED_BYTE;
2404	AssertMsgFailed(("Test me - SVGA3D_DXT5\n"));
2405	#endif
2406	break;
2407
2408	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
2409	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
2410	pSurface->formatGL = GL_LUMINANCE;
2411	pSurface->typeGL = GL_UNSIGNED_BYTE;
2412	break;
2413
2414	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
2415	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
2416	pSurface->formatGL = GL_LUMINANCE;
2417	pSurface->typeGL = GL_UNSIGNED_SHORT;
2418	break;
2419
2420	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
2421	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
2422	pSurface->formatGL = GL_LUMINANCE_ALPHA;
2423	pSurface->typeGL = GL_UNSIGNED_BYTE;
2424	break;
2425
2426	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
2427	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
2428	pSurface->formatGL = GL_LUMINANCE_ALPHA;
2429	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
2430	break;
2431
2432	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
2433	pSurface->internalFormatGL = GL_ALPHA8_EXT;
2434	pSurface->formatGL = GL_ALPHA;
2435	pSurface->typeGL = GL_UNSIGNED_BYTE;
2436	break;
2437
2438	#if 0
2439
2440	/* Bump-map formats */
2441	case SVGA3D_BUMPU8V8:
2442	return D3DFMT_V8U8;
2443	case SVGA3D_BUMPL6V5U5:
2444	return D3DFMT_L6V5U5;
2445	case SVGA3D_BUMPX8L8V8U8:
2446	return D3DFMT_X8L8V8U8;
2447	case SVGA3D_BUMPL8V8U8:
2448	/* No corresponding D3D9 equivalent. */
2449	AssertFailedReturn(D3DFMT_UNKNOWN);
2450	/* signed bump-map formats */
2451	case SVGA3D_V8U8:
2452	return D3DFMT_V8U8;
2453	case SVGA3D_Q8W8V8U8:
2454	return D3DFMT_Q8W8V8U8;
2455	case SVGA3D_CxV8U8:
2456	return D3DFMT_CxV8U8;
2457	/* mixed bump-map formats */
2458	case SVGA3D_X8L8V8U8:
2459	return D3DFMT_X8L8V8U8;
2460	case SVGA3D_A2W10V10U10:
2461	return D3DFMT_A2W10V10U10;
2462	#endif
2463
2464	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
2465	pSurface->internalFormatGL = GL_RGBA16F;
2466	pSurface->formatGL = GL_RGBA;
2467	#if 0 /* bird: wine uses half float, sounds correct to me... */
2468	pSurface->typeGL = GL_FLOAT;
2469	#else
2470	pSurface->typeGL = GL_HALF_FLOAT;
2471	AssertMsgFailed(("Test me - SVGA3D_ARGB_S10E5\n"));
2472	#endif
2473	break;
2474
2475	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
2476	pSurface->internalFormatGL = GL_RGBA32F;
2477	pSurface->formatGL = GL_RGBA;
2478	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
2479	break;
2480
2481	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
2482	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
2483	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
2484	pSurface->formatGL = GL_RGBA;
2485	#else
2486	pSurface->formatGL = GL_BGRA;
2487	#endif
2488	pSurface->typeGL = GL_UNSIGNED_INT;
2489	AssertMsgFailed(("Test me - SVGA3D_A2R10G10B10\n"));
2490	break;
2491
2492
2493	/* Single- and dual-component floating point formats */
2494	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
2495	pSurface->internalFormatGL = GL_R16F;
2496	pSurface->formatGL = GL_RED;
2497	#if 0 /* bird: wine uses half float, sounds correct to me... */
2498	pSurface->typeGL = GL_FLOAT;
2499	#else
2500	pSurface->typeGL = GL_HALF_FLOAT;
2501	AssertMsgFailed(("Test me - SVGA3D_R_S10E5\n"));
2502	#endif
2503	break;
2504	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
2505	pSurface->internalFormatGL = GL_R32F;
2506	pSurface->formatGL = GL_RG;
2507	pSurface->typeGL = GL_FLOAT;
2508	break;
2509	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
2510	pSurface->internalFormatGL = GL_RG16F;
2511	pSurface->formatGL = GL_RG;
2512	#if 0 /* bird: wine uses half float, sounds correct to me... */
2513	pSurface->typeGL = GL_FLOAT;
2514	#else
2515	pSurface->typeGL = GL_HALF_FLOAT;
2516	AssertMsgFailed(("Test me - SVGA3D_RG_S10E5\n"));
2517	#endif
2518	break;
2519	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
2520	pSurface->internalFormatGL = GL_RG32F;
2521	pSurface->formatGL = GL_RG;
2522	pSurface->typeGL = GL_FLOAT;
2523	break;
2524
2525	/*
2526	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
2527	* the most efficient format to use when creating new surfaces
2528	* expressly for index or vertex data.
2529	*/
2530	case SVGA3D_BUFFER:
2531	pSurface->internalFormatGL = -1;
2532	pSurface->formatGL = -1;
2533	pSurface->typeGL = -1;
2534	break;
2535
2536	#if 0
2537	return D3DFMT_UNKNOWN;
2538
2539	case SVGA3D_V16U16:
2540	return D3DFMT_V16U16;
2541	#endif
2542
2543	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
2544	pSurface->internalFormatGL = GL_RG16;
2545	pSurface->formatGL = GL_RG;
2546	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
2547	pSurface->typeGL = GL_UNSIGNED_INT;
2548	#else
2549	pSurface->typeGL = GL_UNSIGNED_SHORT;
2550	AssertMsgFailed(("test me - SVGA3D_G16R16\n"));
2551	#endif
2552	break;
2553
2554	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
2555	pSurface->internalFormatGL = GL_RGBA16;
2556	pSurface->formatGL = GL_RGBA;
2557	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
2558	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
2559	#else
2560	pSurface->typeGL = GL_UNSIGNED_SHORT;
2561	AssertMsgFailed(("Test me - SVGA3D_A16B16G16R16\n"));
2562	#endif
2563	break;
2564
2565	#if 0
2566	/* Packed Video formats */
2567	case SVGA3D_UYVY:
2568	return D3DFMT_UYVY;
2569	case SVGA3D_YUY2:
2570	return D3DFMT_YUY2;
2571
2572	/* Planar video formats */
2573	case SVGA3D_NV12:
2574	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
2575
2576	/* Video format with alpha */
2577	case SVGA3D_AYUV:
2578	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
2579
2580	case SVGA3D_BC4_UNORM:
2581	case SVGA3D_BC5_UNORM:
2582	/* Unknown; only in DX10 & 11 */
2583	break;
2584	#endif
2585	default:
2586	AssertMsgFailed(("Unsupported format %d\n", format));
2587	break;
2588	}
2589	}
2590
2591
2592	#if 0
2593	/**
2594	* Convert SVGA multi sample count value to its D3D equivalent
2595	*/
2596	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
2597	{
2598	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
2599	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
2600
2601	if (multisampleCount > 16)
2602	return D3DMULTISAMPLE_NONE;
2603
2604	/* @todo exact same mapping as d3d? */
2605	return (D3DMULTISAMPLE_TYPE)multisampleCount;
2606	}
2607	#endif
2608
2609	int vmsvga3dSurfaceDefine(PVGASTATE pThis, uint32_t sid, uint32_t surfaceFlags, SVGA3dSurfaceFormat format,
2610	SVGA3dSurfaceFace face[SVGA3D_MAX_SURFACE_FACES], uint32_t multisampleCount,
2611	SVGA3dTextureFilter autogenFilter, uint32_t cMipLevels, SVGA3dSize *pMipLevelSize)
2612	{
2613	PVMSVGA3DSURFACE pSurface;
2614	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
2615	AssertReturn(pState, VERR_NO_MEMORY);
2616
2617	Log(("vmsvga3dSurfaceDefine: sid=%x surfaceFlags=%x format=%s (%x) multiSampleCount=%d autogenFilter=%d, cMipLevels=%d size=(%d,%d,%d)\n",
2618	sid, surfaceFlags, vmsvgaSurfaceType2String(format), format, multisampleCount, autogenFilter, cMipLevels, pMipLevelSize->width, pMipLevelSize->height, pMipLevelSize->depth));
2619
2620	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2621	AssertReturn(cMipLevels >= 1, VERR_INVALID_PARAMETER);
2622	/* Assuming all faces have the same nr of mipmaps. */
2623	AssertReturn(!(surfaceFlags & SVGA3D_SURFACE_CUBEMAP) \|\| cMipLevels == face[0].numMipLevels * 6, VERR_INVALID_PARAMETER);
2624	AssertReturn((surfaceFlags & SVGA3D_SURFACE_CUBEMAP) \|\| cMipLevels == face[0].numMipLevels, VERR_INVALID_PARAMETER);
2625
2626	if (sid >= pState->cSurfaces)
2627	{
2628	/* Grow the array. */
2629	uint32_t cNew = RT_ALIGN(sid + 15, 16);
2630	void pvNew = RTMemRealloc(pState->papSurfaces, sizeof(pState->papSurfaces[0]) cNew);
2631	AssertReturn(pvNew, VERR_NO_MEMORY);
2632	pState->papSurfaces = (PVMSVGA3DSURFACE *)pvNew;
2633	while (pState->cSurfaces < cNew)
2634	{
2635	pSurface = (PVMSVGA3DSURFACE)RTMemAllocZ(sizeof(*pSurface));
2636	AssertReturn(pSurface, VERR_NO_MEMORY);
2637	pSurface->id = SVGA3D_INVALID_ID;
2638	pState->papSurfaces[pState->cSurfaces++] = pSurface;
2639	}
2640	}
2641	pSurface = pState->papSurfaces[sid];
2642
2643	/* If one already exists with this id, then destroy it now. */
2644	if (pSurface->id != SVGA3D_INVALID_ID)
2645	vmsvga3dSurfaceDestroy(pThis, sid);
2646
2647	memset(pSurface, 0, sizeof(*pSurface));
2648	pSurface->id = sid;
2649	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
2650	pSurface->idWeakContextAssociation = SVGA3D_INVALID_ID;
2651	#else
2652	pSurface->idAssociatedContext = SVGA3D_INVALID_ID;
2653	#endif
2654	vmsvga3dSurfaceFormat2OGL(pSurface, format);
2655
2656	pSurface->oglId.buffer = OPENGL_INVALID_ID;
2657
2658	/* The surface type is sort of undefined now, even though the hints and format can help to clear that up.
2659	* In some case we'll have to wait until the surface is used to create the D3D object.
2660	*/
2661	switch (format)
2662	{
2663	case SVGA3D_Z_D32:
2664	case SVGA3D_Z_D16:
2665	case SVGA3D_Z_D24S8:
2666	case SVGA3D_Z_D15S1:
2667	case SVGA3D_Z_D24X8:
2668	case SVGA3D_Z_DF16:
2669	case SVGA3D_Z_DF24:
2670	case SVGA3D_Z_D24S8_INT:
2671	surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
2672	break;
2673
2674	/* Texture compression formats */
2675	case SVGA3D_DXT1:
2676	case SVGA3D_DXT2:
2677	case SVGA3D_DXT3:
2678	case SVGA3D_DXT4:
2679	case SVGA3D_DXT5:
2680	/* Bump-map formats */
2681	case SVGA3D_BUMPU8V8:
2682	case SVGA3D_BUMPL6V5U5:
2683	case SVGA3D_BUMPX8L8V8U8:
2684	case SVGA3D_BUMPL8V8U8:
2685	case SVGA3D_V8U8:
2686	case SVGA3D_Q8W8V8U8:
2687	case SVGA3D_CxV8U8:
2688	case SVGA3D_X8L8V8U8:
2689	case SVGA3D_A2W10V10U10:
2690	case SVGA3D_V16U16:
2691	/* Typical render target formats; we should allow render target buffers to be used as textures. */
2692	case SVGA3D_X8R8G8B8:
2693	case SVGA3D_A8R8G8B8:
2694	case SVGA3D_R5G6B5:
2695	case SVGA3D_X1R5G5B5:
2696	case SVGA3D_A1R5G5B5:
2697	case SVGA3D_A4R4G4B4:
2698	surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2699	break;
2700
2701	case SVGA3D_LUMINANCE8:
2702	case SVGA3D_LUMINANCE4_ALPHA4:
2703	case SVGA3D_LUMINANCE16:
2704	case SVGA3D_LUMINANCE8_ALPHA8:
2705	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB */
2706	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB */
2707	case SVGA3D_A2R10G10B10:
2708	case SVGA3D_ALPHA8:
2709	case SVGA3D_R_S10E5:
2710	case SVGA3D_R_S23E8:
2711	case SVGA3D_RG_S10E5:
2712	case SVGA3D_RG_S23E8:
2713	case SVGA3D_G16R16:
2714	case SVGA3D_A16B16G16R16:
2715	case SVGA3D_UYVY:
2716	case SVGA3D_YUY2:
2717	case SVGA3D_NV12:
2718	case SVGA3D_AYUV:
2719	case SVGA3D_BC4_UNORM:
2720	case SVGA3D_BC5_UNORM:
2721	break;
2722
2723	/*
2724	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
2725	* the most efficient format to use when creating new surfaces
2726	* expressly for index or vertex data.
2727	*/
2728	case SVGA3D_BUFFER:
2729	break;
2730
2731	default:
2732	break;
2733	}
2734
2735	pSurface->flags = surfaceFlags;
2736	pSurface->format = format;
2737	memcpy(pSurface->faces, face, sizeof(pSurface->faces));
2738	pSurface->cFaces = 1; /* check for cube maps later */
2739	pSurface->multiSampleCount = multisampleCount;
2740	pSurface->autogenFilter = autogenFilter;
2741	Assert(autogenFilter != SVGA3D_TEX_FILTER_FLATCUBIC);
2742	Assert(autogenFilter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2743	pSurface->pMipmapLevels = (PVMSVGA3DMIPMAPLEVEL)RTMemAllocZ(cMipLevels * sizeof(VMSVGA3DMIPMAPLEVEL));
2744	AssertReturn(pSurface->pMipmapLevels, VERR_NO_MEMORY);
2745
2746	for (uint32_t i=0; i < cMipLevels; i++)
2747	pSurface->pMipmapLevels[i].size = pMipLevelSize[i];
2748
2749	pSurface->cbBlock = vmsvga3dSurfaceFormatSize(format);
2750
2751	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))
2752	{
2753	case SVGA3D_SURFACE_CUBEMAP:
2754	Log(("SVGA3D_SURFACE_CUBEMAP\n"));
2755	pSurface->cFaces = 6;
2756	break;
2757
2758	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2759	Log(("SVGA3D_SURFACE_HINT_INDEXBUFFER\n"));
2760	/* else type unknown at this time; postpone buffer creation */
2761	break;
2762
2763	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2764	Log(("SVGA3D_SURFACE_HINT_VERTEXBUFFER\n"));
2765	/* Type unknown at this time; postpone buffer creation */
2766	break;
2767
2768	case SVGA3D_SURFACE_HINT_TEXTURE:
2769	Log(("SVGA3D_SURFACE_HINT_TEXTURE\n"));
2770	break;
2771
2772	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2773	Log(("SVGA3D_SURFACE_HINT_RENDERTARGET\n"));
2774	break;
2775
2776	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2777	Log(("SVGA3D_SURFACE_HINT_DEPTHSTENCIL\n"));
2778	break;
2779
2780	default:
2781	/* Unknown; decide later. */
2782	break;
2783	}
2784
2785	/* Allocate buffer to hold the surface data until we can move it into a D3D object */
2786	for (uint32_t iFace=0; iFace < pSurface->cFaces; iFace++)
2787	{
2788	for (uint32_t i=0; i < pSurface->faces[iFace].numMipLevels; i++)
2789	{
2790	uint32_t idx = i + iFace * pSurface->faces[0].numMipLevels;
2791
2792	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));
2793	Log(("vmsvga3dSurfaceDefine: cbPitch=%x cbBlock=%x \n", pSurface->cbBlock * pSurface->pMipmapLevels[idx].size.width, pSurface->cbBlock));
2794
2795	pSurface->pMipmapLevels[idx].cbSurfacePitch = pSurface->cbBlock * pSurface->pMipmapLevels[idx].size.width;
2796	pSurface->pMipmapLevels[idx].cbSurface = pSurface->pMipmapLevels[idx].cbSurfacePitch * pSurface->pMipmapLevels[idx].size.height * pSurface->pMipmapLevels[idx].size.depth;
2797	pSurface->pMipmapLevels[idx].pSurfaceData = RTMemAllocZ(pSurface->pMipmapLevels[idx].cbSurface);
2798	AssertReturn(pSurface->pMipmapLevels[idx].pSurfaceData, VERR_NO_MEMORY);
2799	}
2800	}
2801	return VINF_SUCCESS;
2802	}
2803
2804	int vmsvga3dSurfaceDestroy(PVGASTATE pThis, uint32_t sid)
2805	{
2806	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
2807	AssertReturn(pState, VERR_NO_MEMORY);
2808
2809	if ( sid < pState->cSurfaces
2810	&& pState->papSurfaces[sid]->id == sid)
2811	{
2812	PVMSVGA3DSURFACE pSurface = pState->papSurfaces[sid];
2813	PVMSVGA3DCONTEXT pContext;
2814
2815	Log(("vmsvga3dSurfaceDestroy id %x\n", sid));
2816
2817	#if 1 /* Windows is doing this, guess it makes sense here as well... */
2818	/* Check all contexts if this surface is used as a render target or active texture. */
2819	for (uint32_t cid = 0; cid < pState->cContexts; cid++)
2820	{
2821	pContext = pState->papContexts[cid];
2822	if (pContext->id == cid)
2823	{
2824	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTexture); i++)
2825	if (pContext->aSidActiveTexture[i] == sid)
2826	pContext->aSidActiveTexture[i] = SVGA3D_INVALID_ID;
2827	if (pContext->sidRenderTarget == sid)
2828	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
2829	}
2830	}
2831	#endif
2832
2833	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
2834	pContext = &pState->SharedCtx;
2835	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2836	#else
2837	/* @todo stricter checks for associated context */
2838	uint32_t cid = pSurface->idAssociatedContext;
2839	if ( cid <= pState->cContexts
2840	&& pState->papContexts[cid]->id == cid)
2841	{
2842	pContext = pState->papContexts[cid];
2843	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2844	}
2845	/* If there is a GL buffer or something associated with the surface, we
2846	really need something here, so pick any active context. */
2847	else if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
2848	{
2849	for (cid = 0; cid < pState->cContexts; cid++)
2850	{
2851	if (pState->papContexts[cid]->id == cid)
2852	{
2853	pContext = pState->papContexts[cid];
2854	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2855	break;
2856	}
2857	}
2858	AssertReturn(pContext, VERR_INTERNAL_ERROR); /* otherwise crashes/fails; create temp context if this ever triggers! */
2859	}
2860	#endif
2861
2862	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))
2863	{
2864	case SVGA3D_SURFACE_CUBEMAP:
2865	AssertFailed(); /* @todo */
2866	break;
2867
2868	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2869	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2870	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
2871	{
2872	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
2873	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2874	}
2875	break;
2876
2877	case SVGA3D_SURFACE_HINT_TEXTURE:
2878	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2879	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
2880	{
2881	glDeleteTextures(1, &pSurface->oglId.texture);
2882	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2883	}
2884	break;
2885
2886	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2887	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2888	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /* @todo actual texture surface not supported */
2889	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
2890	{
2891	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
2892	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2893	}
2894	break;
2895
2896	default:
2897	break;
2898	}
2899
2900	if (pSurface->pMipmapLevels)
2901	{
2902	for (uint32_t face=0; face < pSurface->cFaces; face++)
2903	{
2904	for (uint32_t i=0; i < pSurface->faces[face].numMipLevels; i++)
2905	{
2906	uint32_t idx = i + face * pSurface->faces[0].numMipLevels;
2907	if (pSurface->pMipmapLevels[idx].pSurfaceData)
2908	RTMemFree(pSurface->pMipmapLevels[idx].pSurfaceData);
2909	}
2910	}
2911	RTMemFree(pSurface->pMipmapLevels);
2912	}
2913
2914	memset(pSurface, 0, sizeof(*pSurface));
2915	pSurface->id = SVGA3D_INVALID_ID;
2916	}
2917	else
2918	AssertFailedReturn(VERR_INVALID_PARAMETER);
2919
2920	return VINF_SUCCESS;
2921	}
2922
2923	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
2924	{
2925	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
2926	uint32_t sidSrc = src.sid;
2927	uint32_t sidDest = dest.sid;
2928	int rc = VINF_SUCCESS;
2929
2930	AssertReturn(pState, VERR_NO_MEMORY);
2931	AssertReturn(sidSrc < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2932	AssertReturn(sidSrc < pState->cSurfaces && pState->papSurfaces[sidSrc]->id == sidSrc, VERR_INVALID_PARAMETER);
2933	AssertReturn(sidDest < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2934	AssertReturn(sidDest < pState->cSurfaces && pState->papSurfaces[sidDest]->id == sidDest, VERR_INVALID_PARAMETER);
2935
2936	for (uint32_t i = 0; i < cCopyBoxes; i++)
2937	{
2938	SVGA3dBox destBox, srcBox;
2939
2940	srcBox.x = pBox[i].srcx;
2941	srcBox.y = pBox[i].srcy;
2942	srcBox.z = pBox[i].srcz;
2943	srcBox.w = pBox[i].w;
2944	srcBox.h = pBox[i].h;
2945	srcBox.d = pBox[i].z;
2946
2947	destBox.x = pBox[i].x;
2948	destBox.y = pBox[i].y;
2949	destBox.z = pBox[i].z;
2950	destBox.w = pBox[i].w;
2951	destBox.h = pBox[i].h;
2952	destBox.z = pBox[i].z;
2953
2954	rc = vmsvga3dSurfaceStretchBlt(pThis, dest, destBox, src, srcBox, SVGA3D_STRETCH_BLT_LINEAR);
2955	AssertRCReturn(rc, rc);
2956	}
2957	return VINF_SUCCESS;
2958	}
2959
2960
2961	/**
2962	* Save texture unpacking parameters and loads those appropriate for the given
2963	* surface.
2964	*
2965	* @param pState The VMSVGA3D state structure.
2966	* @param pContext The active context.
2967	* @param pSurface The surface.
2968	* @param pSave Where to save stuff.
2969	*/
2970	static void vmsvga3dSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2971	PVMSVGAPACKPARAMS pSave)
2972	{
2973	/*
2974	* Save (ignore errors, setting the defaults we want and avoids restore).
2975	*/
2976	pSave->iAlignment = 1;
2977	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2978	pSave->cxRow = 0;
2979	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2980
2981	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2982	pSave->cyImage = 0;
2983	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
2984	Assert(pSave->cyImage == 0);
2985
2986	pSave->fSwapBytes = GL_FALSE;
2987	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
2988	Assert(pSave->fSwapBytes == GL_FALSE);
2989
2990	pSave->fLsbFirst = GL_FALSE;
2991	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
2992	Assert(pSave->fLsbFirst == GL_FALSE);
2993
2994	pSave->cSkipRows = 0;
2995	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
2996	Assert(pSave->cSkipRows == 0);
2997
2998	pSave->cSkipPixels = 0;
2999	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
3000	Assert(pSave->cSkipPixels == 0);
3001
3002	pSave->cSkipImages = 0;
3003	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
3004	Assert(pSave->cSkipImages == 0);
3005
3006	VMSVGA3D_CLEAR_GL_ERRORS();
3007	#endif
3008
3009	/*
3010	* Setup unpack.
3011	*
3012	* Note! We use 1 as alignment here because we currently don't do any
3013	* aligning of line pitches anywhere.
3014	*/
3015	NOREF(pSurface);
3016	if (pSave->iAlignment != 1)
3017	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
3018	if (pSave->cxRow != 0)
3019	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
3020	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
3021	if (pSave->cyImage != 0)
3022	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
3023	if (pSave->fSwapBytes != 0)
3024	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
3025	if (pSave->fLsbFirst != 0)
3026	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
3027	if (pSave->cSkipRows != 0)
3028	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
3029	if (pSave->cSkipPixels != 0)
3030	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
3031	if (pSave->cSkipImages != 0)
3032	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
3033	#endif
3034	}
3035
3036
3037	/**
3038	* Restores texture unpacking parameters.
3039	*
3040	* @param pState The VMSVGA3D state structure.
3041	* @param pContext The active context.
3042	* @param pSurface The surface.
3043	* @param pSave Where stuff was saved.
3044	*/
3045	static void vmsvga3dRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
3046	PCVMSVGAPACKPARAMS pSave)
3047	{
3048	NOREF(pSurface);
3049	if (pSave->iAlignment != 1)
3050	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
3051	if (pSave->cxRow != 0)
3052	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
3053	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
3054	if (pSave->cyImage != 0)
3055	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
3056	if (pSave->fSwapBytes != 0)
3057	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
3058	if (pSave->fLsbFirst != 0)
3059	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
3060	if (pSave->cSkipRows != 0)
3061	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
3062	if (pSave->cSkipPixels != 0)
3063	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
3064	if (pSave->cSkipImages != 0)
3065	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
3066	#endif
3067	}
3068
3069
3070	/* Create D3D texture object for the specified surface. */
3071	static int vmsvga3dCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
3072	PVMSVGA3DSURFACE pSurface)
3073	{
3074	GLint activeTexture = 0;
3075	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
3076	uint32_t idPrevCtx = pState->idActiveContext;
3077	pContext = &pState->SharedCtx;
3078	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3079	#endif
3080
3081	glGenTextures(1, &pSurface->oglId.texture);
3082	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3083	/* @todo Set the mip map generation filter settings. */
3084
3085	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
3086	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3087
3088	/* Must bind texture to the current context in order to change it. */
3089	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
3090	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3091
3092	/* Set the unpacking parameters. */
3093	VMSVGAPACKPARAMS SavedParams;
3094	vmsvga3dSetUnpackParams(pState, pContext, pSurface, &SavedParams);
3095
3096	/* Set the mipmap base and max level paramters. */
3097	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
3098	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3099	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels);
3100	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3101
3102	if (pSurface->fDirty)
3103	Log(("vmsvga3dCreateTexture: sync dirty texture\n"));
3104
3105	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
3106	for (uint32_t i = 0; i < pSurface->faces[0].numMipLevels; i++)
3107	{
3108	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
3109	exposing random host memory to the guest and helps a with the fedora 21 surface
3110	corruption issues (launchpad, background, search field, login). */
3111	if (pSurface->pMipmapLevels[i].fDirty)
3112	Log(("vmsvga3dCreateTexture: sync dirty texture mipmap level %d (pitch %x)\n", i, pSurface->pMipmapLevels[i].cbSurfacePitch));
3113
3114	glTexImage2D(GL_TEXTURE_2D,
3115	i,
3116	pSurface->internalFormatGL,
3117	pSurface->pMipmapLevels[i].size.width,
3118	pSurface->pMipmapLevels[i].size.height,
3119	0,
3120	pSurface->formatGL,
3121	pSurface->typeGL,
3122	pSurface->pMipmapLevels[i].pSurfaceData);
3123
3124	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3125
3126	pSurface->pMipmapLevels[i].fDirty = false;
3127	}
3128	pSurface->fDirty = false;
3129
3130	/* Restore unpacking parameters. */
3131	vmsvga3dRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
3132
3133	/* Restore the old active texture. */
3134	glBindTexture(GL_TEXTURE_2D, activeTexture);
3135	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3136
3137	pSurface->flags \|= SVGA3D_SURFACE_HINT_TEXTURE;
3138	#ifndef VMSVGA3D_OGL_WITH_SHARED_CTX
3139	LogFlow(("vmsvga3dCreateTexture: sid=%x idAssociatedContext %#x -> %#x; oglId.texture=%#x\n",
3140	pSurface->id, pSurface->idAssociatedContext, idAssociatedContext, pSurface->oglId.texture));
3141	pSurface->idAssociatedContext = idAssociatedContext;
3142	#endif
3143
3144	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
3145	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
3146	{
3147	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
3148	}
3149	#endif
3150	return VINF_SUCCESS;
3151	}
3152
3153	int vmsvga3dSurfaceStretchBlt(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dBox destBox,
3154	SVGA3dSurfaceImageId src, SVGA3dBox srcBox, SVGA3dStretchBltMode mode)
3155	{
3156	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
3157	PVMSVGA3DSURFACE pSurfaceSrc;
3158	uint32_t sidSrc = src.sid;
3159	PVMSVGA3DSURFACE pSurfaceDest;
3160	uint32_t sidDest = dest.sid;
3161	int rc = VINF_SUCCESS;
3162	uint32_t cid;
3163	PVMSVGA3DCONTEXT pContext;
3164
3165	AssertReturn(pState, VERR_NO_MEMORY);
3166	AssertReturn(sidSrc < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
3167	AssertReturn(sidSrc < pState->cSurfaces && pState->papSurfaces[sidSrc]->id == sidSrc, VERR_INVALID_PARAMETER);
3168	AssertReturn(sidDest < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
3169	AssertReturn(sidDest < pState->cSurfaces && pState->papSurfaces[sidDest]->id == sidDest, VERR_INVALID_PARAMETER);
3170
3171	pSurfaceSrc = pState->papSurfaces[sidSrc];
3172	pSurfaceDest = pState->papSurfaces[sidDest];
3173	AssertReturn(pSurfaceSrc->faces[0].numMipLevels > src.mipmap, VERR_INVALID_PARAMETER);
3174	AssertReturn(pSurfaceDest->faces[0].numMipLevels > dest.mipmap, VERR_INVALID_PARAMETER);
3175
3176	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
3177	Log(("vmsvga3dSurfaceStretchBlt: src sid=%x (%d,%d)(%d,%d) dest sid=%x (%d,%d)(%d,%d) mode=%x\n",
3178	src.sid, srcBox.x, srcBox.y, srcBox.x + srcBox.w, srcBox.y + srcBox.h,
3179	dest.sid, destBox.x, destBox.y, destBox.x + destBox.w, destBox.y + destBox.h, mode));
3180	cid = SVGA3D_INVALID_ID;
3181	pContext = &pState->SharedCtx;
3182	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3183	#else
3184	Log(("vmsvga3dSurfaceStretchBlt: src sid=%x cid=%x (%d,%d)(%d,%d) dest sid=%x cid=%x (%d,%d)(%d,%d) mode=%x\n",
3185	src.sid, pSurfaceSrc->idAssociatedContext, srcBox.x, srcBox.y, srcBox.x + srcBox.w, srcBox.y + srcBox.h,
3186	dest.sid, pSurfaceDest->idAssociatedContext, destBox.x, destBox.y, destBox.x + destBox.w, destBox.y + destBox.h, mode));
3187
3188	/* @todo stricter checks for associated context */
3189	cid = pSurfaceDest->idAssociatedContext;
3190	if (cid == SVGA3D_INVALID_ID)
3191	cid = pSurfaceSrc->idAssociatedContext;
3192
3193	if ( cid >= pState->cContexts
3194	\|\| pState->papContexts[cid]->id != cid)
3195	{
3196	Log(("vmsvga3dSurfaceStretchBlt invalid context id!\n"));
3197	AssertFailedReturn(VERR_INVALID_PARAMETER);
3198	}
3199	pContext = pState->papContexts[cid];
3200	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3201	#endif
3202
3203	if (pSurfaceSrc->oglId.texture == OPENGL_INVALID_ID)
3204	{
3205	/* Unknown surface type; turn it into a texture, which can be used for other purposes too. */
3206	Log(("vmsvga3dSurfaceStretchBlt: unknown src surface id=%x type=%d format=%d -> create texture\n", sidSrc, pSurfaceSrc->flags, pSurfaceSrc->format));
3207	rc = vmsvga3dCreateTexture(pState, pContext, cid, pSurfaceSrc);
3208	AssertRCReturn(rc, rc);
3209	}
3210
3211	if (pSurfaceDest->oglId.texture == OPENGL_INVALID_ID)
3212	{
3213	/* Unknown surface type; turn it into a texture, which can be used for other purposes too. */
3214	Log(("vmsvga3dSurfaceStretchBlt: unknown dest surface id=%x type=%d format=%d -> create texture\n", sidDest, pSurfaceDest->flags, pSurfaceDest->format));
3215	rc = vmsvga3dCreateTexture(pState, pContext, cid, pSurfaceDest);
3216	AssertRCReturn(rc, rc);
3217	}
3218
3219	/* Activate the read and draw framebuffer objects. */
3220	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
3221	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3222	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
3223	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3224
3225	/* Bind the source and destination objects to the right place. */
3226	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
3227	pSurfaceSrc->oglId.texture, src.mipmap);
3228	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3229	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
3230	pSurfaceDest->oglId.texture, dest.mipmap);
3231	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3232
3233	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),
3234	srcBox.x + srcBox.w, D3D_TO_OGL_Y_COORD(pSurfaceSrc, srcBox.y), destBox.x, D3D_TO_OGL_Y_COORD(pSurfaceDest, destBox.y + destBox.h),
3235	destBox.x + destBox.w, D3D_TO_OGL_Y_COORD(pSurfaceDest, destBox.y)));
3236
3237	pState->ext.glBlitFramebuffer(srcBox.x,
3238	#ifdef MANUAL_FLIP_SURFACE_DATA
3239	D3D_TO_OGL_Y_COORD(pSurfaceSrc, srcBox.y + srcBox.h), /* inclusive */
3240	#else
3241	srcBox.y,
3242	#endif
3243	srcBox.x + srcBox.w, /* exclusive. */
3244	#ifdef MANUAL_FLIP_SURFACE_DATA
3245	D3D_TO_OGL_Y_COORD(pSurfaceSrc, srcBox.y), /* exclusive */
3246	#else
3247	srcBox.y + srcBox.h,
3248	#endif
3249	destBox.x,
3250	#ifdef MANUAL_FLIP_SURFACE_DATA
3251	D3D_TO_OGL_Y_COORD(pSurfaceDest, destBox.y + destBox.h), /* inclusive. */
3252	#else
3253	destBox.y,
3254	#endif
3255	destBox.x + destBox.w, /* exclusive. */
3256	#ifdef MANUAL_FLIP_SURFACE_DATA
3257	D3D_TO_OGL_Y_COORD(pSurfaceDest, destBox.y), /* exclusive */
3258	#else
3259	destBox.y + destBox.h,
3260	#endif
3261	GL_COLOR_BUFFER_BIT,
3262	(mode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
3263	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3264
3265	/* Reset the frame buffer association */
3266	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3267	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3268
3269	return VINF_SUCCESS;
3270	}
3271
3272	/**
3273	* Save texture packing parameters and loads those appropriate for the given
3274	* surface.
3275	*
3276	* @param pState The VMSVGA3D state structure.
3277	* @param pContext The active context.
3278	* @param pSurface The surface.
3279	* @param pSave Where to save stuff.
3280	*/
3281	static void vmsvga3dSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
3282	PVMSVGAPACKPARAMS pSave)
3283	{
3284	/*
3285	* Save (ignore errors, setting the defaults we want and avoids restore).
3286	*/
3287	pSave->iAlignment = 1;
3288	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
3289	pSave->cxRow = 0;
3290	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
3291
3292	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
3293	pSave->cyImage = 0;
3294	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
3295	Assert(pSave->cyImage == 0);
3296
3297	pSave->fSwapBytes = GL_FALSE;
3298	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
3299	Assert(pSave->fSwapBytes == GL_FALSE);
3300
3301	pSave->fLsbFirst = GL_FALSE;
3302	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
3303	Assert(pSave->fLsbFirst == GL_FALSE);
3304
3305	pSave->cSkipRows = 0;
3306	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
3307	Assert(pSave->cSkipRows == 0);
3308
3309	pSave->cSkipPixels = 0;
3310	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
3311	Assert(pSave->cSkipPixels == 0);
3312
3313	pSave->cSkipImages = 0;
3314	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
3315	Assert(pSave->cSkipImages == 0);
3316
3317	VMSVGA3D_CLEAR_GL_ERRORS();
3318	#endif
3319
3320	/*
3321	* Setup unpack.
3322	*
3323	* Note! We use 1 as alignment here because we currently don't do any
3324	* aligning of line pitches anywhere.
3325	*/
3326	NOREF(pSurface);
3327	if (pSave->iAlignment != 1)
3328	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
3329	if (pSave->cxRow != 0)
3330	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
3331	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
3332	if (pSave->cyImage != 0)
3333	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
3334	if (pSave->fSwapBytes != 0)
3335	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
3336	if (pSave->fLsbFirst != 0)
3337	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
3338	if (pSave->cSkipRows != 0)
3339	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
3340	if (pSave->cSkipPixels != 0)
3341	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
3342	if (pSave->cSkipImages != 0)
3343	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
3344	#endif
3345	}
3346
3347
3348	/**
3349	* Restores texture packing parameters.
3350	*
3351	* @param pState The VMSVGA3D state structure.
3352	* @param pContext The active context.
3353	* @param pSurface The surface.
3354	* @param pSave Where stuff was saved.
3355	*/
3356	static void vmsvga3dRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
3357	PCVMSVGAPACKPARAMS pSave)
3358	{
3359	NOREF(pSurface);
3360	if (pSave->iAlignment != 1)
3361	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
3362	if (pSave->cxRow != 0)
3363	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
3364	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
3365	if (pSave->cyImage != 0)
3366	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
3367	if (pSave->fSwapBytes != 0)
3368	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
3369	if (pSave->fLsbFirst != 0)
3370	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
3371	if (pSave->cSkipRows != 0)
3372	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
3373	if (pSave->cSkipPixels != 0)
3374	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
3375	if (pSave->cSkipImages != 0)
3376	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
3377	#endif
3378	}
3379
3380
3381	int vmsvga3dSurfaceDMA(PVGASTATE pThis, SVGA3dGuestImage guest, SVGA3dSurfaceImageId host, SVGA3dTransferType transfer,
3382	uint32_t cCopyBoxes, SVGA3dCopyBox *pBoxes)
3383	{
3384	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
3385	PVMSVGA3DSURFACE pSurface;
3386	PVMSVGA3DMIPMAPLEVEL pMipLevel;
3387	uint32_t sid = host.sid;
3388	int rc = VINF_SUCCESS;
3389
3390	AssertReturn(pState, VERR_NO_MEMORY);
3391	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
3392	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
3393
3394	pSurface = pState->papSurfaces[sid];
3395	AssertReturn(pSurface->faces[0].numMipLevels > host.mipmap, VERR_INVALID_PARAMETER);
3396	pMipLevel = &pSurface->pMipmapLevels[host.mipmap];
3397
3398	if (pSurface->flags & SVGA3D_SURFACE_HINT_TEXTURE)
3399	Log(("vmsvga3dSurfaceDMA TEXTURE guestptr gmr=%x offset=%x pitch=%x host sid=%x face=%d mipmap=%d transfer=%s cCopyBoxes=%d\n", guest.ptr.gmrId, guest.ptr.offset, guest.pitch, host.sid, host.face, host.mipmap, (transfer == SVGA3D_WRITE_HOST_VRAM) ? "READ" : "WRITE", cCopyBoxes));
3400	else
3401	Log(("vmsvga3dSurfaceDMA guestptr gmr=%x offset=%x pitch=%x host sid=%x face=%d mipmap=%d transfer=%s cCopyBoxes=%d\n", guest.ptr.gmrId, guest.ptr.offset, guest.pitch, host.sid, host.face, host.mipmap, (transfer == SVGA3D_WRITE_HOST_VRAM) ? "READ" : "WRITE", cCopyBoxes));
3402
3403	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
3404	{
3405	AssertReturn(pSurface->pMipmapLevels[host.mipmap].pSurfaceData, VERR_INTERNAL_ERROR);
3406
3407	for (unsigned i = 0; i < cCopyBoxes; i++)
3408	{
3409	unsigned uDestOffset;
3410	unsigned cbSrcPitch;
3411	uint8_t *pBufferStart;
3412
3413	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));
3414	/* Apparently we're supposed to clip it (gmr test sample) */
3415	if (pBoxes[i].x + pBoxes[i].w > pMipLevel->size.width)
3416	pBoxes[i].w = pMipLevel->size.width - pBoxes[i].x;
3417	if (pBoxes[i].y + pBoxes[i].h > pMipLevel->size.height)
3418	pBoxes[i].h = pMipLevel->size.height - pBoxes[i].y;
3419	if (pBoxes[i].z + pBoxes[i].d > pMipLevel->size.depth)
3420	pBoxes[i].d = pMipLevel->size.depth - pBoxes[i].z;
3421
3422	if ( !pBoxes[i].w
3423	\|\| !pBoxes[i].h
3424	\|\| !pBoxes[i].d
3425	\|\| pBoxes[i].x > pMipLevel->size.width
3426	\|\| pBoxes[i].y > pMipLevel->size.height
3427	\|\| pBoxes[i].z > pMipLevel->size.depth)
3428	{
3429	Log(("Empty box; skip\n"));
3430	continue;
3431	}
3432
3433	uDestOffset = pBoxes[i].x * pSurface->cbBlock + pBoxes[i].y * pMipLevel->cbSurfacePitch + pBoxes[i].z * pMipLevel->size.height * pMipLevel->cbSurfacePitch;
3434	AssertReturn(uDestOffset + pBoxes[i].w * pSurface->cbBlock * pBoxes[i].h * pBoxes[i].d <= pMipLevel->cbSurface, VERR_INTERNAL_ERROR);
3435
3436	cbSrcPitch = (guest.pitch == 0) ? pBoxes[i].w * pSurface->cbBlock : guest.pitch;
3437	#ifdef MANUAL_FLIP_SURFACE_DATA
3438	pBufferStart = (uint8_t *)pMipLevel->pSurfaceData
3439	+ pBoxes[i].x * pSurface->cbBlock
3440	+ pMipLevel->cbSurface - pBoxes[i].y * pMipLevel->cbSurfacePitch
3441	- pMipLevel->cbSurfacePitch; /* flip image during copy */
3442	#else
3443	pBufferStart = (uint8_t *)pMipLevel->pSurfaceData + uDestOffset;
3444	#endif
3445	rc = vmsvgaGMRTransfer(pThis,
3446	transfer,
3447	pBufferStart,
3448	#ifdef MANUAL_FLIP_SURFACE_DATA
3449	-(int32_t)pMipLevel->cbSurfacePitch,
3450	#else
3451	(int32_t)pMipLevel->cbSurfacePitch,
3452	#endif
3453	guest.ptr,
3454	pBoxes[i].srcx * pSurface->cbBlock + (pBoxes[i].srcy + pBoxes[i].srcz * pBoxes[i].h) * cbSrcPitch,
3455	cbSrcPitch,
3456	pBoxes[i].w * pSurface->cbBlock,
3457	pBoxes[i].d * pBoxes[i].h);
3458
3459	Log4(("first line:\n%.*Rhxd\n", pMipLevel->cbSurface, pMipLevel->pSurfaceData));
3460
3461	AssertRC(rc);
3462	}
3463	pSurface->pMipmapLevels[host.mipmap].fDirty = true;
3464	pSurface->fDirty = true;
3465	}
3466	else
3467	{
3468	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
3469	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
3470	#else
3471	/* @todo stricter checks for associated context */
3472	uint32_t cid = pSurface->idAssociatedContext;
3473	if ( cid >= pState->cContexts
3474	\|\| pState->papContexts[cid]->id != cid)
3475	{
3476	Log(("vmsvga3dSurfaceDMA invalid context id (%x - %x)!\n", cid, (cid >= pState->cContexts) ? -1 : pState->papContexts[cid]->id));
3477	AssertFailedReturn(VERR_INVALID_PARAMETER);
3478	}
3479	PVMSVGA3DCONTEXT pContext = pState->papContexts[cid];
3480	#endif
3481	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3482
3483	for (unsigned i = 0; i < cCopyBoxes; i++)
3484	{
3485	bool fVertex = false;
3486	unsigned cbSrcPitch;
3487
3488	/* Apparently we're supposed to clip it (gmr test sample) */
3489	if (pBoxes[i].x + pBoxes[i].w > pMipLevel->size.width)
3490	pBoxes[i].w = pMipLevel->size.width - pBoxes[i].x;
3491	if (pBoxes[i].y + pBoxes[i].h > pMipLevel->size.height)
3492	pBoxes[i].h = pMipLevel->size.height - pBoxes[i].y;
3493	if (pBoxes[i].z + pBoxes[i].d > pMipLevel->size.depth)
3494	pBoxes[i].d = pMipLevel->size.depth - pBoxes[i].z;
3495
3496	Assert((pBoxes[i].d == 1 \|\| pBoxes[i].d == 0) && pBoxes[i].z == 0);
3497
3498	if ( !pBoxes[i].w
3499	\|\| !pBoxes[i].h
3500	\|\| pBoxes[i].x > pMipLevel->size.width
3501	\|\| pBoxes[i].y > pMipLevel->size.height)
3502	{
3503	Log(("Empty box; skip\n"));
3504	continue;
3505	}
3506
3507	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));
3508
3509	cbSrcPitch = (guest.pitch == 0) ? pBoxes[i].w * pSurface->cbBlock : guest.pitch;
3510
3511	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))
3512	{
3513	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
3514	case SVGA3D_SURFACE_HINT_TEXTURE:
3515	case SVGA3D_SURFACE_HINT_RENDERTARGET:
3516	{
3517	uint32_t cbSurfacePitch;
3518	uint8_t pDoubleBuffer, pBufferStart;
3519	unsigned uDestOffset = 0;
3520
3521	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
3522	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
3523
3524	if (transfer == SVGA3D_READ_HOST_VRAM)
3525	{
3526	GLint activeTexture;
3527
3528	/* Must bind texture to the current context in order to read it. */
3529	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
3530	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3531
3532	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
3533	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3534
3535	/* Set row length and alignment of the input data. */
3536	VMSVGAPACKPARAMS SavedParams;
3537	vmsvga3dSetPackParams(pState, pContext, pSurface, &SavedParams);
3538
3539	glGetTexImage(GL_TEXTURE_2D,
3540	host.mipmap,
3541	pSurface->formatGL,
3542	pSurface->typeGL,
3543	pDoubleBuffer);
3544	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3545
3546	vmsvga3dRestorePackParams(pState, pContext, pSurface, &SavedParams);
3547
3548	/* Restore the old active texture. */
3549	glBindTexture(GL_TEXTURE_2D, activeTexture);
3550	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3551
3552	uDestOffset = pBoxes[i].x * pSurface->cbBlock + pBoxes[i].y * pMipLevel->cbSurfacePitch;
3553	AssertReturnStmt( uDestOffset + pBoxes[i].w * pSurface->cbBlock + (pBoxes[i].h - 1) * pMipLevel->cbSurfacePitch
3554	<= pMipLevel->cbSurface,
3555	RTMemFree(pDoubleBuffer),
3556	VERR_INTERNAL_ERROR);
3557
3558	cbSurfacePitch = pMipLevel->cbSurfacePitch;
3559
3560	#ifdef MANUAL_FLIP_SURFACE_DATA
3561	pBufferStart = pDoubleBuffer
3562	+ pBoxes[i].x * pSurface->cbBlock
3563	+ pMipLevel->cbSurface - pBoxes[i].y * cbSurfacePitch
3564	- cbSurfacePitch; /* flip image during copy */
3565	#else
3566	pBufferStart = pDoubleBuffer + uDestOffset;
3567	#endif
3568	}
3569	else
3570	{
3571	cbSurfacePitch = pBoxes[i].w * pSurface->cbBlock;
3572	#ifdef MANUAL_FLIP_SURFACE_DATA
3573	pBufferStart = pDoubleBuffer + cbSurfacePitch * pBoxes[i].h - cbSurfacePitch; /* flip image during copy */
3574	#else
3575	pBufferStart = pDoubleBuffer;
3576	#endif
3577	}
3578
3579	rc = vmsvgaGMRTransfer(pThis,
3580	transfer,
3581	pBufferStart,
3582	#ifdef MANUAL_FLIP_SURFACE_DATA
3583	-(int32_t)cbSurfacePitch,
3584	#else
3585	(int32_t)cbSurfacePitch,
3586	#endif
3587	guest.ptr,
3588	pBoxes[i].srcx * pSurface->cbBlock + pBoxes[i].srcy * cbSrcPitch,
3589	cbSrcPitch,
3590	pBoxes[i].w * pSurface->cbBlock,
3591	pBoxes[i].h);
3592	AssertRC(rc);
3593
3594	/* Update the opengl surface data. */
3595	if (transfer == SVGA3D_WRITE_HOST_VRAM)
3596	{
3597	GLint activeTexture = 0;
3598
3599	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
3600	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3601
3602	/* Must bind texture to the current context in order to change it. */
3603	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
3604	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3605
3606	Log(("vmsvga3dSurfaceDMA: copy texture mipmap level %d (pitch %x)\n", host.mipmap, pMipLevel->cbSurfacePitch));
3607
3608	/* Set row length and alignment of the input data. */
3609	VMSVGAPACKPARAMS SavedParams;
3610	vmsvga3dSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
3611
3612	glTexSubImage2D(GL_TEXTURE_2D,
3613	host.mipmap,
3614	pBoxes[i].x,
3615	pBoxes[i].y,
3616	pBoxes[i].w,
3617	pBoxes[i].h,
3618	pSurface->formatGL,
3619	pSurface->typeGL,
3620	pDoubleBuffer);
3621
3622	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3623
3624	/* Restore old values. */
3625	vmsvga3dRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
3626
3627	/* Restore the old active texture. */
3628	glBindTexture(GL_TEXTURE_2D, activeTexture);
3629	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3630	}
3631
3632	Log4(("first line:\n%.Rhxd\n", pBoxes[i].w pSurface->cbBlock, pDoubleBuffer));
3633
3634	/* Free the double buffer. */
3635	RTMemFree(pDoubleBuffer);
3636	break;
3637	}
3638
3639	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
3640	AssertFailed(); /* @todo */
3641	break;
3642
3643	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
3644	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
3645	{
3646	Assert(pBoxes[i].h == 1);
3647
3648	VMSVGA3D_CLEAR_GL_ERRORS();
3649	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
3650	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
3651	{
3652	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
3653	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
3654	if (RT_LIKELY(pbData != NULL))
3655	{
3656	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
3657	GLint cbStrictBufSize;
3658	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
3659	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
3660	# ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
3661	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
3662	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
3663	# else
3664	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
3665	("cbStrictBufSize=%#x cbSurface=%#x isAssociatedContext=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pSurface->idAssociatedContext, pContext->id));
3666	# endif
3667	#endif
3668
3669	unsigned offDst = pBoxes[i].x * pSurface->cbBlock + pBoxes[i].y * pMipLevel->cbSurfacePitch;
3670	if (RT_LIKELY( offDst + pBoxes[i].w * pSurface->cbBlock + (pBoxes[i].h - 1) * pMipLevel->cbSurfacePitch
3671	<= pMipLevel->cbSurface))
3672	{
3673	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n", (fVertex) ? "vertex" : "index",
3674	pBoxes[i].x, pBoxes[i].y, pBoxes[i].x + pBoxes[i].w, pBoxes[i].y + pBoxes[i].h));
3675
3676	rc = vmsvgaGMRTransfer(pThis,
3677	transfer,
3678	pbData + offDst,
3679	pMipLevel->cbSurfacePitch,
3680	guest.ptr,
3681	pBoxes[i].srcx * pSurface->cbBlock + pBoxes[i].srcy * cbSrcPitch,
3682	cbSrcPitch,
3683	pBoxes[i].w * pSurface->cbBlock,
3684	pBoxes[i].h);
3685	AssertRC(rc);
3686
3687	Log4(("first line:\n%.*Rhxd\n", cbSrcPitch, pbData));
3688	}
3689	else
3690	{
3691	AssertFailed();
3692	rc = VERR_INTERNAL_ERROR;
3693	}
3694
3695	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
3696	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3697	}
3698	else
3699	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
3700	}
3701	else
3702	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
3703	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
3704	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3705	break;
3706	}
3707
3708	default:
3709	AssertFailed();
3710	break;
3711	}
3712	}
3713	}
3714	return rc;
3715	}
3716
3717	int vmsvga3dSurfaceBlitToScreen(PVGASTATE pThis, uint32_t dest, SVGASignedRect destRect, SVGA3dSurfaceImageId src, SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *pRect)
3718	{
3719	/* Requires SVGA_FIFO_CAP_SCREEN_OBJECT support */
3720	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));
3721	for (uint32_t i = 0; i < cRects; i++)
3722	{
3723	Log(("vmsvga3dSurfaceBlitToScreen: clipping rect %d (%d,%d)(%d,%d)\n", i, pRect[i].left, pRect[i].top, pRect[i].right, pRect[i].bottom));
3724	}
3725
3726	/* @todo Only screen 0 for now. */
3727	AssertReturn(dest == 0, VERR_INTERNAL_ERROR);
3728	AssertReturn(src.mipmap == 0 && src.face == 0, VERR_INVALID_PARAMETER);
3729	/* @todo scaling */
3730	AssertReturn(destRect.right - destRect.left == srcRect.right - srcRect.left && destRect.bottom - destRect.top == srcRect.bottom - srcRect.top, VERR_INVALID_PARAMETER);
3731
3732	if (cRects == 0)
3733	{
3734	/* easy case; no clipping */
3735	SVGA3dCopyBox box;
3736	SVGA3dGuestImage dst;
3737
3738	box.x = destRect.left;
3739	box.y = destRect.top;
3740	box.z = 0;
3741	box.w = destRect.right - destRect.left;
3742	box.h = destRect.bottom - destRect.top;
3743	box.d = 1;
3744	box.srcx = srcRect.left;
3745	box.srcy = srcRect.top;
3746	box.srcz = 0;
3747
3748	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
3749	dst.ptr.offset = 0;
3750	dst.pitch = pThis->svga.cbScanline;
3751
3752	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
3753	AssertRCReturn(rc, rc);
3754
3755	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
3756	return VINF_SUCCESS;
3757	}
3758	else
3759	{
3760	SVGA3dGuestImage dst;
3761	SVGA3dCopyBox box;
3762
3763	box.srcz = 0;
3764	box.z = 0;
3765	box.d = 1;
3766
3767	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
3768	dst.ptr.offset = 0;
3769	dst.pitch = pThis->svga.cbScanline;
3770
3771	/* @todo merge into one SurfaceDMA call */
3772	for (uint32_t i = 0; i < cRects; i++)
3773	{
3774	/* The clipping rectangle is relative to the top-left corner of srcRect & destRect. Adjust here. */
3775	box.srcx = srcRect.left + pRect[i].left;
3776	box.srcy = srcRect.top + pRect[i].top;
3777
3778	box.x = pRect[i].left + destRect.left;
3779	box.y = pRect[i].top + destRect.top;
3780	box.z = 0;
3781	box.w = pRect[i].right - pRect[i].left;
3782	box.h = pRect[i].bottom - pRect[i].top;
3783
3784	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
3785	AssertRCReturn(rc, rc);
3786
3787	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
3788	}
3789
3790	return VINF_SUCCESS;
3791	}
3792	}
3793
3794	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
3795	{
3796	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
3797	PVMSVGA3DSURFACE pSurface;
3798	int rc = VINF_SUCCESS;
3799	PVMSVGA3DCONTEXT pContext;
3800	uint32_t cid;
3801	GLint activeTexture = 0;
3802
3803	AssertReturn(pState, VERR_NO_MEMORY);
3804	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
3805	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
3806
3807	pSurface = pState->papSurfaces[sid];
3808	#ifndef VMSVGA3D_OGL_WITH_SHARED_CTX
3809	AssertReturn(pSurface->idAssociatedContext != SVGA3D_INVALID_ID, VERR_INTERNAL_ERROR);
3810	#endif
3811
3812	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
3813	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
3814	pSurface->autogenFilter = filter;
3815
3816	Log(("vmsvga3dGenerateMipmaps: sid=%x filter=%d\n", sid, filter));
3817
3818	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
3819	cid = SVGA3D_INVALID_ID;
3820	pContext = &pState->SharedCtx;
3821	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3822	#else
3823	/* @todo stricter checks for associated context */
3824	cid = pSurface->idAssociatedContext;
3825
3826	if ( cid >= pState->cContexts
3827	\|\| pState->papContexts[cid]->id != cid)
3828	{
3829	Log(("vmsvga3dGenerateMipmaps invalid context id!\n"));
3830	return VERR_INVALID_PARAMETER;
3831	}
3832	pContext = pState->papContexts[cid];
3833	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3834	#endif
3835
3836	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
3837	{
3838	/* Unknown surface type; turn it into a texture. */
3839	Log(("vmsvga3dGenerateMipmaps: unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->flags, pSurface->format));
3840	rc = vmsvga3dCreateTexture(pState, pContext, cid, pSurface);
3841	AssertRCReturn(rc, rc);
3842	}
3843	else
3844	{
3845	/* @todo new filter */
3846	AssertFailed();
3847	}
3848
3849	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
3850	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3851
3852	/* Must bind texture to the current context in order to change it. */
3853	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
3854	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3855
3856	/* Generate the mip maps. */
3857	pState->ext.glGenerateMipmap(GL_TEXTURE_2D);
3858	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3859
3860	/* Restore the old texture. */
3861	glBindTexture(GL_TEXTURE_2D, activeTexture);
3862	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3863
3864	return VINF_SUCCESS;
3865	}
3866
3867	int vmsvga3dCommandPresent(PVGASTATE pThis, uint32_t sid, uint32_t cRects, SVGA3dCopyRect *pRect)
3868	{
3869	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
3870	PVMSVGA3DSURFACE pSurface;
3871	int rc = VINF_SUCCESS;
3872	PVMSVGA3DCONTEXT pContext;
3873	uint32_t cid;
3874
3875	AssertReturn(pState, VERR_NO_MEMORY);
3876	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
3877	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
3878
3879	pSurface = pState->papSurfaces[sid];
3880	#ifndef VMSVGA3D_OGL_WITH_SHARED_CTX
3881	AssertReturn(pSurface->idAssociatedContext != SVGA3D_INVALID_ID, VERR_INTERNAL_ERROR);
3882	#endif
3883
3884	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
3885	/* @todo stricter checks for associated context */
3886	Log(("vmsvga3dCommandPresent: sid=%x cRects=%d\n", sid, cRects));
3887	for (uint32_t i=0; i < cRects; i++)
3888	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));
3889
3890	pContext = &pState->SharedCtx;
3891	# ifdef VMSVGA3D_OGL_WITH_SHARED_CTX_EXPERIMENT_1
3892	if ( pSurface->idWeakContextAssociation < pState->cContexts
3893	&& pState->papContexts[pSurface->idWeakContextAssociation]->id == pSurface->idWeakContextAssociation)
3894	pContext = pState->papContexts[pSurface->idWeakContextAssociation];
3895	# endif
3896	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3897	cid = pContext->id;
3898	#else
3899	/* @todo stricter checks for associated context */
3900	cid = pSurface->idAssociatedContext;
3901	Log(("vmsvga3dCommandPresent: sid=%x cRects=%d cid=%x\n", sid, cRects, cid));
3902	for (uint32_t i=0; i < cRects; i++)
3903	{
3904	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));
3905	}
3906
3907	if ( cid >= pState->cContexts
3908	\|\| pState->papContexts[cid]->id != cid)
3909	{
3910	Log(("vmsvga3dCommandPresent invalid context id!\n"));
3911	return VERR_INVALID_PARAMETER;
3912	}
3913	pContext = pState->papContexts[cid];
3914	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3915	#endif
3916	VMSVGA3D_CLEAR_GL_ERRORS();
3917
3918	/*
3919	* Source surface different size?
3920	*/
3921	RTRECT2 srcViewPort;
3922	if ( pSurface->pMipmapLevels[0].size.width != pThis->svga.uWidth
3923	\|\| pSurface->pMipmapLevels[0].size.height != pThis->svga.uHeight)
3924	{
3925	float xMultiplier = (float)pSurface->pMipmapLevels[0].size.width / (float)pThis->svga.uWidth;
3926	float yMultiplier = (float)pSurface->pMipmapLevels[0].size.height / (float)pThis->svga.uHeight;
3927
3928	LogFlow(("size (%d vs %d) (%d vs %d) multiplier (%d,%d)/100\n", pSurface->pMipmapLevels[0].size.width, pThis->svga.uWidth,
3929	pSurface->pMipmapLevels[0].size.height, pThis->svga.uHeight, (int)(xMultiplier * 100.0), (int)(yMultiplier * 100.0)));
3930
3931	srcViewPort.x = (uint32_t)((float)pThis->svga.viewport.x * xMultiplier);
3932	srcViewPort.y = (uint32_t)((float)pThis->svga.viewport.y * yMultiplier);
3933	srcViewPort.cx = (uint32_t)((float)pThis->svga.viewport.cx * xMultiplier);
3934	srcViewPort.cy = (uint32_t)((float)pThis->svga.viewport.cy * yMultiplier);
3935	}
3936	else
3937	{
3938	srcViewPort.x = pThis->svga.viewport.x;
3939	srcViewPort.y = pThis->svga.viewport.y;
3940	srcViewPort.cx = pThis->svga.viewport.cx;
3941	srcViewPort.cy = pThis->svga.viewport.cy;
3942	}
3943	RTRECT SrcViewPortRect;
3944	SrcViewPortRect.xLeft = srcViewPort.x;
3945	SrcViewPortRect.xRight = srcViewPort.x + srcViewPort.cx;
3946	SrcViewPortRect.yBottom = srcViewPort.y;
3947	SrcViewPortRect.yTop = srcViewPort.y + srcViewPort.cy;
3948
3949
3950	#ifndef RT_OS_DARWIN /* blit-cube fails in this path... */
3951	/*
3952	* Note! this path is slightly faster than the glBlitFrameBuffer path below.
3953	*/
3954	SVGA3dCopyRect rect;
3955	uint32_t oldVShader, oldPShader;
3956	GLint oldTextureId;
3957
3958	if (cRects == 0)
3959	{
3960	rect.x = rect.y = rect.srcx = rect.srcy = 0;
3961	rect.w = pSurface->pMipmapLevels[0].size.width;
3962	rect.h = pSurface->pMipmapLevels[0].size.height;
3963	pRect = &rect;
3964	cRects = 1;
3965	}
3966
3967	//glPushAttrib(GL_ENABLE_BIT \| GL_DEPTH_BUFFER_BIT \| GL_COLOR_BUFFER_BIT \| GL_VIEWPORT_BIT);
3968
3969	#if 0
3970	glDisable(GL_CULL_FACE);
3971	glDisable(GL_BLEND);
3972	glDisable(GL_ALPHA_TEST);
3973	glDisable(GL_SCISSOR_TEST);
3974	glDisable(GL_STENCIL_TEST);
3975	glEnable(GL_DEPTH_TEST);
3976	glDepthFunc(GL_ALWAYS);
3977	glDepthMask(GL_TRUE);
3978	glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
3979	glViewport(0, 0, pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height);
3980	#endif
3981
3982	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &oldTextureId), pState, pContext);
3983
3984	oldVShader = pContext->state.shidVertex;
3985	oldPShader = pContext->state.shidPixel;
3986	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, SVGA_ID_INVALID);
3987	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, SVGA_ID_INVALID);
3988
3989	/* Flush shader changes. */
3990	if (pContext->pShaderContext)
3991	ShaderUpdateState(pContext->pShaderContext, 0);
3992
3993	/* Activate the read and draw framebuffer objects. */
3994	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer), pState, pContext);
3995	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */), pState, pContext);
3996
3997	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glActiveTexture(GL_TEXTURE0), pState, pContext);
3998	VMSVGA3D_ASSERT_GL_CALL(glEnable(GL_TEXTURE_2D), pState, pContext);;
3999	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture), pState, pContext);
4000
4001	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR), pState, pContext);
4002	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR), pState, pContext);;
4003
4004	#if 0
4005	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP), pState, pContext);;
4006	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP), pState, pContext);;
4007	#endif
4008
4009	/* Reset the transformation matrices. */
4010	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
4011	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
4012	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
4013	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
4014	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
4015	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
4016	VMSVGA3D_ASSERT_GL_CALL(glScalef(1.0f, -1.0f, 1.0f), pState, pContext);
4017	VMSVGA3D_ASSERT_GL_CALL(glOrtho(0, pThis->svga.uWidth, pThis->svga.uHeight, 0, 0.0, -1.0), pState, pContext);
4018
4019	for (uint32_t i = 0; i < cRects; i++)
4020	{
4021	float left, right, top, bottom; /* Texture coordinates */
4022	int vertexLeft, vertexRight, vertexTop, vertexBottom;
4023
4024	pRect[i].srcx = RT_MAX(pRect[i].srcx, srcViewPort.x);
4025	pRect[i].srcy = RT_MAX(pRect[i].srcy, srcViewPort.y);
4026	pRect[i].x = RT_MAX(pRect[i].x, pThis->svga.viewport.x) - pThis->svga.viewport.x;
4027	pRect[i].y = RT_MAX(pRect[i].y, pThis->svga.viewport.y) - pThis->svga.viewport.y;
4028	pRect[i].w = pThis->svga.viewport.cx;
4029	pRect[i].h = pThis->svga.viewport.cy;
4030
4031	if ( pRect[i].x + pRect[i].w <= pThis->svga.viewport.x
4032	\|\| pThis->svga.viewport.x + pThis->svga.viewport.cx <= pRect[i].x
4033	\|\| pRect[i].y + pRect[i].h <= pThis->svga.viewport.y
4034	\|\| pThis->svga.viewport.y + pThis->svga.viewport.cy <= pRect[i].y)
4035	{
4036	/* Intersection is empty; skip */
4037	continue;
4038	}
4039
4040	left = pRect[i].srcx;
4041	right = pRect[i].srcx + pRect[i].w;
4042	top = pRect[i].srcy + pRect[i].h;
4043	bottom = pRect[i].srcy;
4044
4045	left /= pSurface->pMipmapLevels[0].size.width;
4046	right /= pSurface->pMipmapLevels[0].size.width;
4047	top /= pSurface->pMipmapLevels[0].size.height;
4048	bottom /= pSurface->pMipmapLevels[0].size.height;
4049
4050	vertexLeft = pRect[i].x;
4051	vertexRight = pRect[i].x + pRect[i].w;
4052	vertexTop = ((uint32_t)pThis->svga.uHeight >= pRect[i].y + pRect[i].h) ? pThis->svga.uHeight - pRect[i].y - pRect[i].h : 0;
4053	vertexBottom = pThis->svga.uHeight - pRect[i].y;
4054
4055	Log(("view port (%d,%d)(%d,%d)\n", srcViewPort.x, srcViewPort.y, srcViewPort.cx, srcViewPort.cy));
4056	Log(("vertex (%d,%d) (%d,%d) (%d,%d) (%d,%d)\n", vertexLeft, vertexBottom, vertexLeft, vertexTop, vertexRight, vertexTop, vertexRight, vertexBottom));
4057	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)));
4058
4059	glBegin(GL_QUADS);
4060
4061	/* bottom left */
4062	glTexCoord2f(left, bottom);
4063	glVertex2i(vertexLeft, vertexBottom);
4064
4065	/* top left */
4066	glTexCoord2f(left, top);
4067	glVertex2i(vertexLeft, vertexTop);
4068
4069	/* top right */
4070	glTexCoord2f(right, top);
4071	glVertex2i(vertexRight, vertexTop);
4072
4073	/* bottom right */
4074	glTexCoord2f(right, bottom);
4075	glVertex2i(vertexRight, vertexBottom);
4076
4077	VMSVGA3D_ASSERT_GL_CALL(glEnd(), pState, pContext);
4078	}
4079
4080	/* Restore old settings. */
4081	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
4082	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
4083	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
4084	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
4085
4086	//VMSVGA3D_ASSERT_GL_CALL(glPopAttrib(), pState, pContext);
4087
4088	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, oldTextureId), pState, pContext);
4089	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, oldVShader);
4090	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, oldPShader);
4091
4092	#else
4093	/*
4094	* glBlitFramebuffer variant.
4095	*/
4096	/* Activate the read and draw framebuffer objects. */
4097	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
4098	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
4099	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */);
4100	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
4101
4102	/* Bind the source objects to the right place. */
4103	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurface->oglId.texture, 0 /* level 0 */);
4104	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
4105
4106	/* Blit the surface rectangle(s) to the back buffer. */
4107	if (cRects == 0)
4108
4109	{
4110	Log(("view port (%d,%d)(%d,%d)\n", srcViewPort.x, srcViewPort.y, srcViewPort.cx, srcViewPort.cy));
4111	pState->ext.glBlitFramebuffer(srcViewPort.x,
4112	srcViewPort.y,
4113	srcViewPort.x + srcViewPort.cx, /* exclusive. */
4114	srcViewPort.y + srcViewPort.cy, /* exclusive. (reverse to flip the image) */
4115	0,
4116	pThis->svga.viewport.cy, /* exclusive. */
4117	pThis->svga.viewport.cx, /* exclusive. */
4118	0,
4119	GL_COLOR_BUFFER_BIT,
4120	GL_LINEAR);
4121	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
4122	}
4123	else
4124	{
4125	for (uint32_t i = 0; i < cRects; i++)
4126	{
4127	# ifdef RT_OS_DARWIN
4128	/* This works better... */
4129	RTRECT SrcRect;
4130	SrcRect.xLeft = pRect[i].srcx;
4131	SrcRect.xRight = pRect[i].srcx + pRect[i].w;
4132	SrcRect.yBottom = pRect[i].srcy;
4133	SrcRect.yTop = pRect[i].srcy + pRect[i].h;
4134	RTRECT DstRect; /* y flipped wrt source */
4135	DstRect.xLeft = pRect[i].x;
4136	DstRect.xRight = pRect[i].x + pRect[i].w;
4137	DstRect.yBottom = pRect[i].y + pRect[i].h;
4138	DstRect.yTop = pRect[i].y;
4139
4140	if (SrcRect.xLeft < SrcViewPortRect.xLeft)
4141	{
4142	DstRect.xLeft += SrcViewPortRect.xLeft - SrcRect.xLeft;
4143	SrcRect.xLeft = SrcViewPortRect.xLeft;
4144	}
4145	else if (SrcRect.xLeft >= SrcViewPortRect.xRight)
4146	continue;
4147
4148	if (SrcRect.xRight > SrcViewPortRect.xRight)
4149	{
4150	DstRect.xRight -= SrcViewPortRect.xRight - SrcRect.xRight;
4151	SrcRect.xRight = SrcViewPortRect.xRight;
4152	}
4153	else if (SrcRect.xRight <= SrcViewPortRect.xLeft)
4154	continue;
4155
4156	if (SrcRect.xRight <= SrcRect.xLeft)
4157	continue;
4158
4159	if (SrcRect.yBottom < SrcViewPortRect.yBottom)
4160	{
4161	DstRect.yTop += SrcViewPortRect.yBottom - SrcRect.yBottom;
4162	SrcRect.yBottom = SrcViewPortRect.yBottom;
4163	}
4164	else if (SrcRect.yBottom >= SrcViewPortRect.yTop)
4165	continue;
4166
4167	if (SrcRect.yTop > SrcViewPortRect.yTop)
4168	{
4169	DstRect.yBottom -= SrcViewPortRect.yTop - SrcRect.yTop;
4170	SrcRect.yTop = SrcViewPortRect.yTop;
4171	}
4172	else if (SrcRect.yTop <= SrcViewPortRect.yBottom)
4173	continue;
4174
4175	if (SrcRect.yTop <= SrcRect.yBottom)
4176	continue;
4177
4178	Log(("SrcRect: (%d,%d)(%d,%d) DstRect: (%d,%d)(%d,%d)\n",
4179	SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
4180	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop));
4181	pState->ext.glBlitFramebuffer(SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
4182	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop,
4183	GL_COLOR_BUFFER_BIT, GL_LINEAR);
4184
4185	# else
4186	if ( pRect[i].x + pRect[i].w <= pThis->svga.viewport.x
4187	\|\| pThis->svga.viewport.x + pThis->svga.viewport.cx <= pRect[i].x
4188	\|\| pRect[i].y + pRect[i].h <= pThis->svga.viewport.y
4189	\|\| pThis->svga.viewport.y + pThis->svga.viewport.cy <= pRect[i].y)
4190	{
4191	/* Intersection is empty; skip */
4192	continue;
4193	}
4194	pState->ext.glBlitFramebuffer(RT_MAX(pRect[i].srcx, srcViewPort.x),
4195	pSurface->pMipmapLevels[0].size.width - RT_MAX(pRect[i].srcy, srcViewPort.y), /* exclusive. (reverse to flip the image) */
4196	RT_MIN(pRect[i].srcx + pRect[i].w, srcViewPort.x + srcViewPort.cx), /* exclusive. */
4197	pSurface->pMipmapLevels[0].size.width - RT_MIN(pRect[i].srcy + pRect[i].h, srcViewPort.y + srcViewPort.cy),
4198	RT_MAX(pRect[i].x, pThis->svga.viewport.x) - pThis->svga.viewport.x,
4199	pThis->svga.uHeight - (RT_MIN(pRect[i].y + pRect[i].h, pThis->svga.viewport.y + pThis->svga.viewport.cy) - pThis->svga.viewport.y), /* exclusive. */
4200	RT_MIN(pRect[i].x + pRect[i].w, pThis->svga.viewport.x + pThis->svga.viewport.cx) - pThis->svga.viewport.x, /* exclusive. */
4201	pThis->svga.uHeight - (RT_MAX(pRect[i].y, pThis->svga.viewport.y) - pThis->svga.viewport.y),
4202	GL_COLOR_BUFFER_BIT,
4203	GL_LINEAR);
4204	# endif
4205	}
4206	}
4207
4208	#endif
4209	#ifndef RT_OS_DARWIN /* darwin: later */
4210	/* Reset the frame buffer association - see below. */
4211	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer), pState, pContext);
4212	#endif
4213
4214	/*
4215	* Flip the front and back buffers.
4216	*/
4217	#ifdef RT_OS_WINDOWS
4218	BOOL ret = SwapBuffers(pContext->hdc);
4219	AssertMsg(ret, ("SwapBuffers failed with %d\n", GetLastError()));
4220	#elif defined(RT_OS_DARWIN)
4221	vmsvga3dCocoaSwapBuffers(pContext->cocoaView, pContext->cocoaContext);
4222	#else
4223	/* show the window if not already done */
4224	if (!pContext->fMapped)
4225	{
4226	XMapWindow(pState->display, pContext->window);
4227	pContext->fMapped = true;
4228	}
4229	/* now swap the buffers, i.e. display the rendering result */
4230	glXSwapBuffers(pState->display, pContext->window);
4231	#endif
4232
4233	#if defined(RT_OS_DARWIN)
4234	/*
4235	* Now we can reset the frame buffer association. Doing it earlier means no
4236	* output on darwin.
4237	*/
4238	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer), pState, pContext);
4239	#endif
4240	return VINF_SUCCESS;
4241	}
4242
4243	#ifdef RT_OS_LINUX
4244	/**
4245	* X11 event handling thread
4246	* @param ThreadSelf thread handle
4247	* @param pvUser pointer to pState structure
4248	* @returns VBox status code
4249	*/
4250	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD ThreadSelf, void *pvUser)
4251	{
4252	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
4253	while (!pState->bTerminate)
4254	{
4255	while (XPending(pState->display) > 0)
4256	{
4257	XEvent event;
4258	XNextEvent(pState->display, &event);
4259
4260	switch (event.type)
4261	{
4262	default:
4263	break;
4264	}
4265	}
4266	/* sleep for 16ms to not burn too many cycles */
4267	RTThreadSleep(16);
4268	}
4269	return VINF_SUCCESS;
4270	}
4271	#endif // RT_OS_LINUX
4272
4273
4274	/**
4275	* Create a new 3d context
4276	*
4277	* @returns VBox status code.
4278	* @param pThis VGA device instance data.
4279	* @param cid Context id
4280	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
4281	*/
4282	static int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
4283	{
4284	int rc;
4285	PVMSVGA3DCONTEXT pContext;
4286	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
4287
4288	AssertReturn(pState, VERR_NO_MEMORY);
4289	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
4290	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
4291	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
4292	#else
4293	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
4294	#endif
4295	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
4296	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
4297	#endif
4298
4299	Log(("vmsvga3dContextDefine id %x\n", cid));
4300	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
4301	if (pState->idTestContext == SVGA_ID_INVALID)
4302	{
4303	pState->idTestContext = 207;
4304	rc = vmsvga3dContextDefine(pThis, pState->idTestContext);
4305	AssertRCReturn(rc, rc);
4306	}
4307	#endif
4308
4309	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
4310	if (cid == VMSVGA3D_SHARED_CTX_ID)
4311	pContext = &pState->SharedCtx;
4312	else
4313	#endif
4314	{
4315	if (cid >= pState->cContexts)
4316	{
4317	/* Grow the array. */
4318	uint32_t cNew = RT_ALIGN(cid + 15, 16);
4319	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
4320	AssertReturn(pvNew, VERR_NO_MEMORY);
4321	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
4322	while (pState->cContexts < cNew)
4323	{
4324	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
4325	AssertReturn(pContext, VERR_NO_MEMORY);
4326	pContext->id = SVGA3D_INVALID_ID;
4327	pState->papContexts[pState->cContexts++] = pContext;
4328	}
4329	}
4330	/* If one already exists with this id, then destroy it now. */
4331	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
4332	vmsvga3dContextDestroy(pThis, cid);
4333
4334	pContext = pState->papContexts[cid];
4335	}
4336
4337	/*
4338	* Find the shared context (necessary for sharing e.g. textures between contexts).
4339	*/
4340	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
4341	PVMSVGA3DCONTEXT pSharedCtx = NULL;
4342	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
4343	{
4344	pSharedCtx = &pState->SharedCtx;
4345	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
4346	{
4347	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
4348	AssertLogRelRCReturn(rc, rc);
4349	}
4350	}
4351	#else
4352	// TODO isn't this default on Linux since OpenGL 1.1?
4353	/* Find the first active context to share the display list with (necessary for sharing e.g. textures between contexts). */
4354	PVMSVGA3DCONTEXT pSharedCtx = NULL;
4355	for (uint32_t i = 0; i < pState->cContexts; i++)
4356	if ( pState->papContexts[i]->id != SVGA3D_INVALID_ID
4357	&& i != cid
4358	# ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
4359	&& pState->papContexts[i]->fOtherProfile == RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE)
4360	# endif
4361	)
4362	{
4363	Log(("Sharing display lists between cid=%d and cid=%d\n", pContext->id, i));
4364	pSharedCtx = pState->papContexts[i];
4365	break;
4366	}
4367	#endif
4368
4369	/*
4370	* Initialize the context.
4371	*/
4372	memset(pContext, 0, sizeof(*pContext));
4373	pContext->id = cid;
4374	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTexture); i++)
4375	pContext->aSidActiveTexture[i] = SVGA3D_INVALID_ID;
4376
4377	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
4378	pContext->state.shidVertex = SVGA3D_INVALID_ID;
4379	pContext->state.shidPixel = SVGA3D_INVALID_ID;
4380	pContext->idFramebuffer = OPENGL_INVALID_ID;
4381	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
4382	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
4383
4384	rc = ShaderContextCreate(&pContext->pShaderContext);
4385	AssertRCReturn(rc, rc);
4386
4387	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
4388	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
4389
4390	AssertReturn(pThis->svga.u64HostWindowId, VERR_INTERNAL_ERROR);
4391
4392	#ifdef RT_OS_WINDOWS
4393	/* Create a context window. */
4394	CREATESTRUCT cs;
4395	cs.lpCreateParams = NULL;
4396	cs.dwExStyle = WS_EX_NOACTIVATE \| WS_EX_NOPARENTNOTIFY \| WS_EX_TRANSPARENT;
4397	# ifdef DEBUG_GFX_WINDOW
4398	cs.lpszName = (char *)RTMemAllocZ(256);
4399	RTStrPrintf((char *)cs.lpszName, 256, "Context %d OpenGL Window", cid);
4400	# else
4401	cs.lpszName = NULL;
4402	# endif
4403	cs.lpszClass = 0;
4404	# ifdef DEBUG_GFX_WINDOW
4405	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_VISIBLE \| WS_CAPTION;
4406	# else
4407	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_DISABLED \| WS_CHILD \| WS_VISIBLE;
4408	# endif
4409	cs.x = 0;
4410	cs.y = 0;
4411	cs.cx = pThis->svga.uWidth;
4412	cs.cy = pThis->svga.uHeight;
4413	cs.hwndParent = (HWND)pThis->svga.u64HostWindowId;
4414	cs.hMenu = NULL;
4415	cs.hInstance = pState->hInstance;
4416
4417	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_CREATEWINDOW, (WPARAM)&pContext->hwnd, (LPARAM)&cs);
4418	AssertRCReturn(rc, rc);
4419
4420	pContext->hdc = GetDC(pContext->hwnd);
4421	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
4422
4423	PIXELFORMATDESCRIPTOR pfd = {
4424	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
4425	1, /* version number */
4426	PFD_DRAW_TO_WINDOW \| /* support window */
4427	PFD_DOUBLEBUFFER \| /* support double buffering */
4428	PFD_SUPPORT_OPENGL, /* support OpenGL */
4429	PFD_TYPE_RGBA, /* RGBA type */
4430	24, /* 24-bit color depth */
4431	0, 0, 0, 0, 0, 0, /* color bits ignored */
4432	8, /* alpha buffer */
4433	0, /* shift bit ignored */
4434	0, /* no accumulation buffer */
4435	0, 0, 0, 0, /* accum bits ignored */
4436	16, /* set depth buffer */
4437	16, /* set stencil buffer */
4438	0, /* no auxiliary buffer */
4439	PFD_MAIN_PLANE, /* main layer */
4440	0, /* reserved */
4441	0, 0, 0 /* layer masks ignored */
4442	};
4443	int pixelFormat;
4444	BOOL ret;
4445
4446	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
4447	/* @todo is this really necessary?? */
4448	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
4449	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
4450
4451	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
4452	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
4453
4454	pContext->hglrc = wglCreateContext(pContext->hdc);
4455	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
4456
4457	if (pSharedCtx)
4458	{
4459	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
4460	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
4461	}
4462
4463	#elif defined(RT_OS_DARWIN)
4464	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
4465
4466	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
4467	NativeNSViewRef pHostView = (NativeNSViewRef)pThis->svga.u64HostWindowId;
4468	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
4469	pHostView, pThis->svga.uWidth, pThis->svga.uHeight,
4470	pShareContext, pContext->fOtherProfile);
4471
4472	#else
4473	Window hostWindow = (Window)pThis->svga.u64HostWindowId;
4474
4475	if (pState->display == NULL)
4476	{
4477	/* get an X display and make sure we have glX 1.3 */
4478	pState->display = XOpenDisplay(0);
4479	Assert(pState->display);
4480	int glxMajor, glxMinor;
4481	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
4482	AssertMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
4483	/* start our X event handling thread */
4484	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
4485	if (RT_FAILURE(rc))
4486	{
4487	AssertMsgFailed(("%s: Async IO Thread creation for 3d window handling failed rc=%d\n", __FUNCTION__, rc));
4488	return rc;
4489	}
4490	}
4491	int attrib[] =
4492	{
4493	GLX_RGBA,
4494	GLX_RED_SIZE, 1,
4495	GLX_GREEN_SIZE, 1,
4496	GLX_BLUE_SIZE, 1,
4497	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
4498	GLX_DOUBLEBUFFER,
4499	None
4500	};
4501	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
4502	XSetWindowAttributes swa;
4503	swa.colormap = XCreateColormap(pState->display, XDefaultRootWindow(pState->display), vi->visual, AllocNone);
4504	swa.border_pixel = 0;
4505	swa.background_pixel = 0;
4506	swa.event_mask = StructureNotifyMask \| ExposureMask;
4507	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
4508	pContext->window = XCreateWindow(pState->display, hostWindow,//XDefaultRootWindow(pState->display),//hostWindow,
4509	0, 0, pThis->svga.uWidth, pThis->svga.uHeight,
4510	0, vi->depth, InputOutput,
4511	vi->visual, flags, &swa);
4512	AssertMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
4513	uint32_t cardinal_alpha = (uint32_t) (0.5 * (uint32_t)-1) ;
4514
4515	/* the window is hidden by default and only mapped when CommandPresent is executed on it */
4516
4517	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
4518	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
4519	AssertMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
4520	#endif
4521
4522	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4523
4524	/* NULL during the first PowerOn call. */
4525	if (pState->ext.glGenFramebuffers)
4526	{
4527	/* Create a framebuffer object for this context. */
4528	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
4529	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4530
4531	/* Bind the object to the framebuffer target. */
4532	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
4533	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4534
4535	/* Create read and draw framebuffer objects for this context. */
4536	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
4537	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4538
4539	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
4540	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4541
4542	}
4543	#if 0
4544	/* @todo move to shader lib!!! */
4545	/* Clear the screen */
4546	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4547
4548	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
4549	glClearIndex(0);
4550	glClearDepth(1);
4551	glClearStencil(0xffff);
4552	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
4553	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
4554	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
4555	if (pState->ext.glProvokingVertex)
4556	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
4557	/* @todo move to shader lib!!! */
4558	#endif
4559	return VINF_SUCCESS;
4560	}
4561
4562
4563	/**
4564	* Create a new 3d context
4565	*
4566	* @returns VBox status code.
4567	* @param pThis VGA device instance data.
4568	* @param cid Context id
4569	*/
4570	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
4571	{
4572	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
4573	}
4574
4575
4576	/**
4577	* Destroy an existing 3d context
4578	*
4579	* @returns VBox status code.
4580	* @param pThis VGA device instance data.
4581	* @param cid Context id
4582	*/
4583	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
4584	{
4585	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
4586	AssertReturn(pState, VERR_NO_MEMORY);
4587
4588	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
4589
4590	if ( cid < pState->cContexts
4591	&& pState->papContexts[cid]->id == cid)
4592	{
4593	PVMSVGA3DCONTEXT pContext = pState->papContexts[cid];
4594
4595	Log(("vmsvga3dContextDestroy id %x\n", cid));
4596
4597	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4598
4599	/* Destroy all leftover pixel shaders. */
4600	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
4601	{
4602	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
4603	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
4604	}
4605	if (pContext->paPixelShader)
4606	RTMemFree(pContext->paPixelShader);
4607
4608	/* Destroy all leftover vertex shaders. */
4609	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
4610	{
4611	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
4612	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
4613	}
4614	if (pContext->paVertexShader)
4615	RTMemFree(pContext->paVertexShader);
4616
4617	if (pContext->state.paVertexShaderConst)
4618	RTMemFree(pContext->state.paVertexShaderConst);
4619	if (pContext->state.paPixelShaderConst)
4620	RTMemFree(pContext->state.paPixelShaderConst);
4621
4622	if (pContext->pShaderContext)
4623	{
4624	int rc = ShaderContextDestroy(pContext->pShaderContext);
4625	AssertRC(rc);
4626	}
4627
4628	#ifndef VMSVGA3D_OGL_WITH_SHARED_CTX /* This is done on windows - prevents various assertions at runtime, as well as shutdown & reset assertions when destroying surfaces. */
4629	/* Check for all surfaces that are associated with this context to remove all dependencies */
4630	for (uint32_t sid = 0; sid < pState->cSurfaces; sid++)
4631	{
4632	PVMSVGA3DSURFACE pSurface = pState->papSurfaces[sid];
4633	if ( pSurface->idAssociatedContext == cid
4634	&& pSurface->id == sid)
4635	{
4636	int rc;
4637
4638	Log(("vmsvga3dContextDestroy: remove all dependencies for surface %x\n", sid));
4639
4640	uint32_t surfaceFlags = pSurface->flags;
4641	SVGA3dSurfaceFormat format = pSurface->format;
4642	SVGA3dSurfaceFace face[SVGA3D_MAX_SURFACE_FACES];
4643	uint32_t multisampleCount = pSurface->multiSampleCount;
4644	SVGA3dTextureFilter autogenFilter = pSurface->autogenFilter;
4645	SVGA3dSize *pMipLevelSize;
4646	uint32_t cFaces = pSurface->cFaces;
4647
4648	pMipLevelSize = (SVGA3dSize )RTMemAllocZ(pSurface->faces[0].numMipLevels pSurface->cFaces * sizeof(SVGA3dSize));
4649	AssertReturn(pMipLevelSize, VERR_NO_MEMORY);
4650
4651	for (uint32_t iFace = 0; iFace < pSurface->cFaces; iFace++)
4652	{
4653	for (uint32_t i = 0; i < pSurface->faces[0].numMipLevels; i++)
4654	{
4655	uint32_t idx = i + iFace * pSurface->faces[0].numMipLevels;
4656	memcpy(&pMipLevelSize[idx], &pSurface->pMipmapLevels[idx].size, sizeof(SVGA3dSize));
4657	}
4658	}
4659	memcpy(face, pSurface->faces, sizeof(pSurface->faces));
4660
4661	/* Recreate the surface with the original settings; destroys the contents, but that seems fairly safe since the context is also destroyed. */
4662	rc = vmsvga3dSurfaceDestroy(pThis, sid);
4663	AssertRC(rc);
4664
4665	rc = vmsvga3dSurfaceDefine(pThis, sid, surfaceFlags, format, face, multisampleCount, autogenFilter, face[0].numMipLevels * cFaces, pMipLevelSize);
4666	AssertRC(rc);
4667	}
4668	}
4669	#endif
4670
4671	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
4672	{
4673	/* Unbind the object from the framebuffer target. */
4674	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
4675	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4676	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
4677	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4678
4679	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
4680	{
4681	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
4682	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4683	}
4684	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
4685	{
4686	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
4687	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4688	}
4689	}
4690	#ifdef RT_OS_WINDOWS
4691	wglMakeCurrent(pContext->hdc, NULL);
4692	wglDeleteContext(pContext->hglrc);
4693	ReleaseDC(pContext->hwnd, pContext->hdc);
4694
4695	/* Destroy the window we've created. */
4696	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
4697	AssertRC(rc);
4698	#elif defined(RT_OS_DARWIN)
4699	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
4700	#elif defined(RT_OS_LINUX)
4701	glXMakeCurrent(pState->display, None, NULL);
4702	glXDestroyContext(pState->display, pContext->glxContext);
4703	XDestroyWindow(pState->display, pContext->window);
4704	#endif
4705
4706	memset(pContext, 0, sizeof(*pContext));
4707	pContext->id = SVGA3D_INVALID_ID;
4708
4709	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
4710	}
4711	else
4712	AssertFailed();
4713
4714	return VINF_SUCCESS;
4715	}
4716
4717	/* Handle resize */
4718	int vmsvga3dChangeMode(PVGASTATE pThis)
4719	{
4720	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
4721	AssertReturn(pState, VERR_NO_MEMORY);
4722
4723	/* Resize all active contexts. */
4724	for (uint32_t i = 0; i < pState->cContexts; i++)
4725	{
4726	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
4727	uint32_t cid = pContext->id;
4728
4729	if (cid != SVGA3D_INVALID_ID)
4730	{
4731	#ifdef RT_OS_WINDOWS
4732	CREATESTRUCT cs;
4733
4734	memset(&cs, 0, sizeof(cs));
4735	cs.cx = pThis->svga.uWidth;
4736	cs.cy = pThis->svga.uHeight;
4737
4738	/* Resize the window. */
4739	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_RESIZEWINDOW, (WPARAM)pContext->hwnd, (LPARAM)&cs);
4740	AssertRC(rc);
4741	#elif defined(RT_OS_DARWIN)
4742	vmsvga3dCocoaViewSetSize(pContext->cocoaView, pThis->svga.uWidth, pThis->svga.uHeight);
4743	#elif defined(RT_OS_LINUX)
4744	XWindowChanges wc;
4745	wc.width = pThis->svga.uWidth;
4746	wc.height = pThis->svga.uHeight;
4747	XConfigureWindow(pState->display, pContext->window, CWWidth \| CWHeight, &wc);
4748	#endif
4749	}
4750	}
4751	return VINF_SUCCESS;
4752	}
4753
4754
4755	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
4756	{
4757	PVMSVGA3DCONTEXT pContext;
4758	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
4759	AssertReturn(pState, VERR_NO_MEMORY);
4760	bool fModelViewChanged = false;
4761
4762	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
4763
4764	if ( cid >= pState->cContexts
4765	\|\| pState->papContexts[cid]->id != cid)
4766	{
4767	Log(("vmsvga3dSetTransform invalid context id!\n"));
4768	return VERR_INVALID_PARAMETER;
4769	}
4770	pContext = pState->papContexts[cid];
4771	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4772
4773	/* Save this matrix for vm state save/restore. */
4774	pContext->state.aTransformState[type].fValid = true;
4775	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
4776	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
4777
4778	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)));
4779	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)));
4780	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)));
4781	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)));
4782
4783	switch (type)
4784	{
4785	case SVGA3D_TRANSFORM_VIEW:
4786	/* View * World = Model View */
4787	glMatrixMode(GL_MODELVIEW);
4788	glLoadMatrixf(matrix);
4789	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
4790	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
4791	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4792	fModelViewChanged = true;
4793	break;
4794
4795	case SVGA3D_TRANSFORM_PROJECTION:
4796	{
4797	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix);
4798	AssertRCReturn(rc, rc);
4799	break;
4800	}
4801
4802	case SVGA3D_TRANSFORM_TEXTURE0:
4803	glMatrixMode(GL_TEXTURE);
4804	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4805	glLoadMatrixf(matrix);
4806	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4807	break;
4808
4809	case SVGA3D_TRANSFORM_TEXTURE1:
4810	case SVGA3D_TRANSFORM_TEXTURE2:
4811	case SVGA3D_TRANSFORM_TEXTURE3:
4812	case SVGA3D_TRANSFORM_TEXTURE4:
4813	case SVGA3D_TRANSFORM_TEXTURE5:
4814	case SVGA3D_TRANSFORM_TEXTURE6:
4815	case SVGA3D_TRANSFORM_TEXTURE7:
4816	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
4817	return VERR_INVALID_PARAMETER;
4818
4819	case SVGA3D_TRANSFORM_WORLD:
4820	/* View * World = Model View */
4821	glMatrixMode(GL_MODELVIEW);
4822	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
4823	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
4824	else
4825	glLoadIdentity();
4826	glMultMatrixf(matrix);
4827	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4828	fModelViewChanged = true;
4829	break;
4830
4831	case SVGA3D_TRANSFORM_WORLD1:
4832	case SVGA3D_TRANSFORM_WORLD2:
4833	case SVGA3D_TRANSFORM_WORLD3:
4834	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
4835	return VERR_INVALID_PARAMETER;
4836
4837	default:
4838	Log(("vmsvga3dSetTransform: unknown type!!\n"));
4839	return VERR_INVALID_PARAMETER;
4840	}
4841
4842	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
4843	if (fModelViewChanged)
4844	{
4845	/* Reprogram the clip planes. */
4846	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
4847	{
4848	if (pContext->state.aClipPlane[j].fValid == true)
4849	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
4850	}
4851
4852	/* Reprogram the light data. */
4853	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
4854	{
4855	if (pContext->state.aLightData[j].fValidData == true)
4856	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
4857	}
4858	}
4859
4860	return VINF_SUCCESS;
4861	}
4862
4863	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
4864	{
4865	PVMSVGA3DCONTEXT pContext;
4866	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
4867	AssertReturn(pState, VERR_NO_MEMORY);
4868
4869	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
4870
4871	if ( cid >= pState->cContexts
4872	\|\| pState->papContexts[cid]->id != cid)
4873	{
4874	Log(("vmsvga3dSetZRange invalid context id!\n"));
4875	return VERR_INVALID_PARAMETER;
4876	}
4877	pContext = pState->papContexts[cid];
4878	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4879
4880	pContext->state.zRange = zRange;
4881	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
4882
4883	if (zRange.min < -1.0)
4884	zRange.min = -1.0;
4885	if (zRange.max > 1.0)
4886	zRange.max = 1.0;
4887
4888	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
4889	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4890	return VINF_SUCCESS;
4891	}
4892
4893	/**
4894	* Convert SVGA blend op value to its OpenGL equivalent
4895	*/
4896	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
4897	{
4898	switch (blendOp)
4899	{
4900	case SVGA3D_BLENDOP_ZERO:
4901	return GL_ZERO;
4902	case SVGA3D_BLENDOP_ONE:
4903	return GL_ONE;
4904	case SVGA3D_BLENDOP_SRCCOLOR:
4905	return GL_SRC_COLOR;
4906	case SVGA3D_BLENDOP_INVSRCCOLOR:
4907	return GL_ONE_MINUS_SRC_COLOR;
4908	case SVGA3D_BLENDOP_SRCALPHA:
4909	return GL_SRC_ALPHA;
4910	case SVGA3D_BLENDOP_INVSRCALPHA:
4911	return GL_ONE_MINUS_SRC_ALPHA;
4912	case SVGA3D_BLENDOP_DESTALPHA:
4913	return GL_DST_ALPHA;
4914	case SVGA3D_BLENDOP_INVDESTALPHA:
4915	return GL_ONE_MINUS_DST_ALPHA;
4916	case SVGA3D_BLENDOP_DESTCOLOR:
4917	return GL_DST_COLOR;
4918	case SVGA3D_BLENDOP_INVDESTCOLOR:
4919	return GL_ONE_MINUS_DST_COLOR;
4920	case SVGA3D_BLENDOP_SRCALPHASAT:
4921	return GL_SRC_ALPHA_SATURATE;
4922	case SVGA3D_BLENDOP_BLENDFACTOR:
4923	return GL_CONSTANT_ALPHA; /* @todo correct?? */
4924	case SVGA3D_BLENDOP_INVBLENDFACTOR:
4925	return GL_ONE_MINUS_CONSTANT_ALPHA; /* @todo correct?? */
4926	default:
4927	AssertFailed();
4928	return GL_ONE;
4929	}
4930	}
4931
4932	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
4933	{
4934	switch (blendEq)
4935	{
4936	case SVGA3D_BLENDEQ_ADD:
4937	return GL_FUNC_ADD;
4938	case SVGA3D_BLENDEQ_SUBTRACT:
4939	return GL_FUNC_SUBTRACT;
4940	case SVGA3D_BLENDEQ_REVSUBTRACT:
4941	return GL_FUNC_REVERSE_SUBTRACT;
4942	case SVGA3D_BLENDEQ_MINIMUM:
4943	return GL_MIN;
4944	case SVGA3D_BLENDEQ_MAXIMUM:
4945	return GL_MAX;
4946	default:
4947	AssertFailed();
4948	return GL_FUNC_ADD;
4949	}
4950	}
4951
4952	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
4953	{
4954	switch (cmpFunc)
4955	{
4956	case SVGA3D_CMP_NEVER:
4957	return GL_NEVER;
4958	case SVGA3D_CMP_LESS:
4959	return GL_LESS;
4960	case SVGA3D_CMP_EQUAL:
4961	return GL_EQUAL;
4962	case SVGA3D_CMP_LESSEQUAL:
4963	return GL_LEQUAL;
4964	case SVGA3D_CMP_GREATER:
4965	return GL_GREATER;
4966	case SVGA3D_CMP_NOTEQUAL:
4967	return GL_NOTEQUAL;
4968	case SVGA3D_CMP_GREATEREQUAL:
4969	return GL_GEQUAL;
4970	case SVGA3D_CMP_ALWAYS:
4971	return GL_ALWAYS;
4972	default:
4973	AssertFailed();
4974	return GL_LESS;
4975	}
4976	}
4977
4978	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
4979	{
4980	switch (stencilOp)
4981	{
4982	case SVGA3D_STENCILOP_KEEP:
4983	return GL_KEEP;
4984	case SVGA3D_STENCILOP_ZERO:
4985	return GL_ZERO;
4986	case SVGA3D_STENCILOP_REPLACE:
4987	return GL_REPLACE;
4988	case SVGA3D_STENCILOP_INCRSAT:
4989	return GL_INCR_WRAP;
4990	case SVGA3D_STENCILOP_DECRSAT:
4991	return GL_DECR_WRAP;
4992	case SVGA3D_STENCILOP_INVERT:
4993	return GL_INVERT;
4994	case SVGA3D_STENCILOP_INCR:
4995	return GL_INCR;
4996	case SVGA3D_STENCILOP_DECR:
4997	return GL_DECR;
4998	default:
4999	AssertFailed();
5000	return GL_KEEP;
5001	}
5002	}
5003
5004	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
5005	{
5006	uint32_t val;
5007	PVMSVGA3DCONTEXT pContext;
5008	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5009	AssertReturn(pState, VERR_NO_MEMORY);
5010
5011	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
5012
5013	if ( cid >= pState->cContexts
5014	\|\| pState->papContexts[cid]->id != cid)
5015	{
5016	Log(("vmsvga3dSetRenderState invalid context id!\n"));
5017	return VERR_INVALID_PARAMETER;
5018	}
5019	pContext = pState->papContexts[cid];
5020	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5021
5022	for (unsigned i = 0; i < cRenderStates; i++)
5023	{
5024	GLenum enableCap = ~0U;
5025	Log(("vmsvga3dSetRenderState: cid=%x state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
5026	/* Save the render state for vm state saving. */
5027	if (pRenderState[i].state < SVGA3D_RS_MAX)
5028	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
5029
5030	switch (pRenderState[i].state)
5031	{
5032	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
5033	enableCap = GL_DEPTH_TEST;
5034	val = pRenderState[i].uintValue;
5035	break;
5036
5037	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
5038	glDepthMask(!!pRenderState[i].uintValue);
5039	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5040	break;
5041
5042	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
5043	enableCap = GL_ALPHA_TEST;
5044	val = pRenderState[i].uintValue;
5045	break;
5046
5047	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
5048	enableCap = GL_DITHER;
5049	val = pRenderState[i].uintValue;
5050	break;
5051
5052	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
5053	enableCap = GL_FOG;
5054	val = pRenderState[i].uintValue;
5055	break;
5056
5057	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
5058	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
5059	break;
5060
5061	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
5062	enableCap = GL_LIGHTING;
5063	val = pRenderState[i].uintValue;
5064	break;
5065
5066	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
5067	/* not applicable */
5068	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
5069	break;
5070
5071	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
5072	enableCap = GL_POINT_SPRITE_ARB;
5073	val = pRenderState[i].uintValue;
5074	break;
5075
5076	case SVGA3D_RS_POINTSIZE: /* float */
5077	/* @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
5078	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
5079	pRenderState[i].floatValue = pState->caps.flPointSize[0];
5080	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
5081	pRenderState[i].floatValue = pState->caps.flPointSize[1];
5082
5083	glPointSize(pRenderState[i].floatValue);
5084	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5085	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
5086	break;
5087
5088	case SVGA3D_RS_POINTSIZEMIN: /* float */
5089	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
5090	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5091	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
5092	break;
5093
5094	case SVGA3D_RS_POINTSIZEMAX: /* float */
5095	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
5096	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5097	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
5098	break;
5099
5100	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
5101	case SVGA3D_RS_POINTSCALE_A: /* float */
5102	case SVGA3D_RS_POINTSCALE_B: /* float */
5103	case SVGA3D_RS_POINTSCALE_C: /* float */
5104	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
5105	break;
5106
5107	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
5108	{
5109	GLfloat color[4]; /* red, green, blue, alpha */
5110
5111	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
5112
5113	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
5114	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5115	break;
5116	}
5117
5118	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
5119	{
5120	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
5121	for (uint32_t j = 0; j <= 5; j++)
5122	{
5123	if (pRenderState[i].uintValue & RT_BIT(j))
5124	glEnable(GL_CLIP_PLANE0 + j);
5125	else
5126	glDisable(GL_CLIP_PLANE0 + j);
5127	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5128	}
5129	break;
5130	}
5131
5132	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
5133	{
5134	GLfloat color[4]; /* red, green, blue, alpha */
5135
5136	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
5137
5138	glFogfv(GL_FOG_COLOR, color);
5139	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5140	break;
5141	}
5142
5143	case SVGA3D_RS_FOGSTART: /* float */
5144	glFogf(GL_FOG_START, pRenderState[i].floatValue);
5145	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5146	break;
5147
5148	case SVGA3D_RS_FOGEND: /* float */
5149	glFogf(GL_FOG_END, pRenderState[i].floatValue);
5150	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5151	break;
5152
5153	case SVGA3D_RS_FOGDENSITY: /* float */
5154	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
5155	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5156	break;
5157
5158	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
5159	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
5160	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5161	break;
5162
5163	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
5164	{
5165	SVGA3dFogMode mode;
5166	mode.uintValue = pRenderState[i].uintValue;
5167
5168	enableCap = GL_FOG_MODE;
5169	switch (mode.s.function)
5170	{
5171	case SVGA3D_FOGFUNC_EXP:
5172	val = GL_EXP;
5173	break;
5174	case SVGA3D_FOGFUNC_EXP2:
5175	val = GL_EXP2;
5176	break;
5177	case SVGA3D_FOGFUNC_LINEAR:
5178	val = GL_LINEAR;
5179	break;
5180	default:
5181	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
5182	break;
5183	}
5184
5185	/* @todo how to switch between vertex and pixel fog modes??? */
5186	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
5187	#if 0
5188	/* The fog type determines the render state. */
5189	switch (mode.s.type)
5190	{
5191	case SVGA3D_FOGTYPE_VERTEX:
5192	renderState = D3DRS_FOGVERTEXMODE;
5193	break;
5194	case SVGA3D_FOGTYPE_PIXEL:
5195	renderState = D3DRS_FOGTABLEMODE;
5196	break;
5197	default:
5198	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
5199	break;
5200	}
5201	#endif
5202
5203	/* Set the fog base to depth or range. */
5204	switch (mode.s.base)
5205	{
5206	case SVGA3D_FOGBASE_DEPTHBASED:
5207	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
5208	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5209	break;
5210	case SVGA3D_FOGBASE_RANGEBASED:
5211	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
5212	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5213	break;
5214	default:
5215	/* ignore */
5216	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
5217	break;
5218	}
5219	break;
5220	}
5221
5222	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
5223	{
5224	SVGA3dFillMode mode;
5225
5226	mode.uintValue = pRenderState[i].uintValue;
5227
5228	switch (mode.s.mode)
5229	{
5230	case SVGA3D_FILLMODE_POINT:
5231	val = GL_POINT;
5232	break;
5233	case SVGA3D_FILLMODE_LINE:
5234	val = GL_LINE;
5235	break;
5236	case SVGA3D_FILLMODE_FILL:
5237	val = GL_FILL;
5238	break;
5239	default:
5240	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
5241	break;
5242	}
5243	/* @note only front and back faces */
5244	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
5245	glPolygonMode(GL_FRONT_AND_BACK, val);
5246	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5247	break;
5248	}
5249
5250	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
5251	switch (pRenderState[i].uintValue)
5252	{
5253	case SVGA3D_SHADEMODE_FLAT:
5254	val = GL_FLAT;
5255	break;
5256
5257	case SVGA3D_SHADEMODE_SMOOTH:
5258	val = GL_SMOOTH;
5259	break;
5260
5261	default:
5262	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
5263	break;
5264	}
5265
5266	glShadeModel(val);
5267	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5268	break;
5269
5270	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
5271	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
5272	/* @todo */
5273	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
5274	/*
5275	renderState = D3DRS_LINEPATTERN;
5276	val = pRenderState[i].uintValue;
5277	*/
5278	break;
5279
5280	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
5281	enableCap = GL_LINE_SMOOTH;
5282	val = pRenderState[i].uintValue;
5283	break;
5284
5285	case SVGA3D_RS_LINEWIDTH: /* float */
5286	glLineWidth(pRenderState[i].floatValue);
5287	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5288	break;
5289
5290	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
5291	{
5292	/* Refresh the blending state based on the new enable setting. */
5293	SVGA3dRenderState renderstate[2];
5294
5295	renderstate[0].state = SVGA3D_RS_SRCBLEND;
5296	renderstate[0].uintValue = pContext->state.aRenderState[SVGA3D_RS_SRCBLEND].uintValue;
5297	renderstate[1].state = SVGA3D_RS_BLENDEQUATION;
5298	renderstate[1].uintValue = pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue;
5299
5300	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
5301	AssertRCReturn(rc, rc);
5302
5303	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
5304	continue; /* ignore if blend is already enabled */
5305	/* no break */
5306	}
5307
5308	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
5309	enableCap = GL_BLEND;
5310	val = pRenderState[i].uintValue;
5311	break;
5312
5313	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
5314	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
5315	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
5316	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
5317	{
5318	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
5319	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
5320
5321	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
5322	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5323	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
5324	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5325	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
5326	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5327	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
5328	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5329
5330	switch (pRenderState[i].state)
5331	{
5332	case SVGA3D_RS_SRCBLEND:
5333	srcRGB = blendop;
5334	break;
5335	case SVGA3D_RS_DSTBLEND:
5336	dstRGB = blendop;
5337	break;
5338	case SVGA3D_RS_SRCBLENDALPHA:
5339	srcAlpha = blendop;
5340	break;
5341	case SVGA3D_RS_DSTBLENDALPHA:
5342	dstAlpha = blendop;
5343	break;
5344	default:
5345	/* not possible; shut up gcc */
5346	AssertFailed();
5347	break;
5348	}
5349
5350	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
5351	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
5352	else
5353	glBlendFunc(srcRGB, dstRGB);
5354	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5355	break;
5356	}
5357
5358	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
5359	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
5360	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
5361	pState->ext.glBlendEquationSeparate(vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue),
5362	vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue));
5363	else
5364	{
5365	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
5366	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
5367	#else
5368	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
5369	#endif
5370	}
5371	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5372	break;
5373
5374	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
5375	{
5376	GLfloat red, green, blue, alpha;
5377
5378	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
5379
5380	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
5381	glBlendColor(red, green, blue, alpha);
5382	#else
5383	pState->ext.glBlendColor(red, green, blue, alpha);
5384	#endif
5385	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5386	break;
5387	}
5388
5389	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
5390	{
5391	GLenum mode = GL_BACK; /* default for OpenGL */
5392
5393	switch (pRenderState[i].uintValue)
5394	{
5395	case SVGA3D_FACE_NONE:
5396	break;
5397	case SVGA3D_FACE_FRONT:
5398	mode = GL_FRONT;
5399	break;
5400	case SVGA3D_FACE_BACK:
5401	mode = GL_BACK;
5402	break;
5403	case SVGA3D_FACE_FRONT_BACK:
5404	mode = GL_FRONT_AND_BACK;
5405	break;
5406	default:
5407	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
5408	break;
5409	}
5410	enableCap = GL_CULL_FACE;
5411	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
5412	{
5413	glCullFace(mode);
5414	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5415	val = 1;
5416	}
5417	else
5418	val = 0;
5419	break;
5420	}
5421
5422	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
5423	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
5424	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5425	break;
5426
5427	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
5428	{
5429	GLclampf ref;
5430
5431	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
5432	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5433	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
5434	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5435	break;
5436	}
5437
5438	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
5439	{
5440	GLint func;
5441
5442	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
5443	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5444	glAlphaFunc(func, pRenderState[i].floatValue);
5445	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5446	break;
5447	}
5448
5449	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
5450	enableCap = GL_STENCIL_TEST;
5451	val = pRenderState[i].uintValue;
5452	break;
5453
5454	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
5455	case SVGA3D_RS_STENCILREF: /* uint32_t */
5456	case SVGA3D_RS_STENCILMASK: /* uint32_t */
5457	{
5458	GLint func, ref;
5459	GLuint mask;
5460
5461	glGetIntegerv(GL_STENCIL_FUNC, &func);
5462	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5463	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
5464	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5465	glGetIntegerv(GL_STENCIL_REF, &ref);
5466	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5467
5468	switch (pRenderState[i].state)
5469	{
5470	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
5471	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
5472	break;
5473
5474	case SVGA3D_RS_STENCILREF: /* uint32_t */
5475	ref = pRenderState[i].uintValue;
5476	break;
5477
5478	case SVGA3D_RS_STENCILMASK: /* uint32_t */
5479	mask = pRenderState[i].uintValue;
5480	break;
5481
5482	default:
5483	/* not possible; shut up gcc */
5484	AssertFailed();
5485	break;
5486	}
5487
5488	glStencilFunc(func, ref, mask);
5489	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5490	break;
5491	}
5492
5493	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
5494	glStencilMask(pRenderState[i].uintValue);
5495	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5496	break;
5497
5498	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
5499	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
5500	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
5501	{
5502	GLint sfail, dpfail, dppass;
5503	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
5504
5505	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
5506	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5507	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
5508	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5509	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
5510	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5511
5512	switch (pRenderState[i].state)
5513	{
5514	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
5515	sfail = stencilop;
5516	break;
5517	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
5518	dpfail = stencilop;
5519	break;
5520	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
5521	dppass = stencilop;
5522	break;
5523	default:
5524	/* not possible; shut up gcc */
5525	AssertFailed();
5526	break;
5527	}
5528	glStencilOp(sfail, dpfail, dppass);
5529	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5530	break;
5531	}
5532
5533	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
5534	/* @note GL_EXT_stencil_two_side required! */
5535	if (pState->ext.fEXT_stencil_two_side)
5536	{
5537	enableCap = GL_STENCIL_TEST_TWO_SIDE_EXT;
5538	val = pRenderState[i].uintValue;
5539	}
5540	else
5541	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_STENCILENABLE2SIDED\n"));
5542	break;
5543
5544	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
5545	{
5546	/* @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
5547	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
5548	*/
5549	GLint ref;
5550	GLuint mask;
5551
5552	glGetIntegerv(GL_STENCIL_BACK_VALUE_MASK, (GLint *)&mask);
5553	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5554	glGetIntegerv(GL_STENCIL_BACK_REF, &ref);
5555	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5556
5557	pState->ext.glStencilFuncSeparate(GL_BACK, vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref, mask);
5558	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5559	break;
5560	}
5561
5562	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
5563	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
5564	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
5565	{
5566	/* @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
5567	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
5568	*/
5569	GLint sfail, dpfail, dppass;
5570	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
5571
5572	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
5573	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5574	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
5575	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5576	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
5577	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5578
5579	switch (pRenderState[i].state)
5580	{
5581	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
5582	sfail = stencilop;
5583	break;
5584	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
5585	dpfail = stencilop;
5586	break;
5587	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
5588	dppass = stencilop;
5589	break;
5590	default:
5591	/* not possible; shut up gcc */
5592	AssertFailed();
5593	break;
5594	}
5595	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
5596	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5597	break;
5598	}
5599
5600	case SVGA3D_RS_ZBIAS: /* float */
5601	/* @todo unknown meaning; depth bias is not identical
5602	renderState = D3DRS_DEPTHBIAS;
5603	val = pRenderState[i].uintValue;
5604	*/
5605	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
5606	break;
5607
5608	case SVGA3D_RS_DEPTHBIAS: /* float */
5609	{
5610	GLfloat factor;
5611
5612	/* @todo not sure if the d3d & ogl definitions are identical. */
5613
5614	/* Do not change the factor part. */
5615	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
5616	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5617
5618	glPolygonOffset(factor, pRenderState[i].floatValue);
5619	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5620	break;
5621	}
5622
5623	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
5624	{
5625	GLfloat units;
5626
5627	/* @todo not sure if the d3d & ogl definitions are identical. */
5628
5629	/* Do not change the factor part. */
5630	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
5631	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5632
5633	glPolygonOffset(pRenderState[i].floatValue, units);
5634	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5635	break;
5636	}
5637
5638	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
5639	{
5640	GLboolean red, green, blue, alpha;
5641	SVGA3dColorMask mask;
5642
5643	mask.uintValue = pRenderState[i].uintValue;
5644
5645	red = mask.s.red;
5646	green = mask.s.green;
5647	blue = mask.s.blue;
5648	alpha = mask.s.alpha;
5649
5650	glColorMask(red, green, blue, alpha);
5651	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5652	break;
5653	}
5654
5655	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
5656	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
5657	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
5658	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
5659	break;
5660
5661	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
5662	enableCap = GL_SCISSOR_TEST;
5663	val = pRenderState[i].uintValue;
5664	break;
5665
5666	#if 0
5667	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
5668	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
5669	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
5670	val = pRenderState[i].uintValue;
5671	break;
5672
5673	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
5674	renderState = D3DRS_SPECULARMATERIALSOURCE;
5675	val = pRenderState[i].uintValue;
5676	break;
5677
5678	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
5679	renderState = D3DRS_AMBIENTMATERIALSOURCE;
5680	val = pRenderState[i].uintValue;
5681	break;
5682
5683	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
5684	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
5685	val = pRenderState[i].uintValue;
5686	break;
5687	#endif
5688
5689	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
5690	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
5691	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
5692	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
5693	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
5694	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
5695	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
5696	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
5697	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
5698	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
5699	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
5700	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
5701	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
5702	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
5703	break;
5704
5705	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
5706	case SVGA3D_RS_TWEENFACTOR: /* float */
5707	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
5708	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
5709	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
5710	break;
5711
5712	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
5713	enableCap = GL_MULTISAMPLE;
5714	val = pRenderState[i].uintValue;
5715	break;
5716
5717	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
5718	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
5719	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
5720	break;
5721
5722	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
5723	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
5724	/* @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
5725	/*
5726	renderState = D3DRS_COORDINATETYPE;
5727	val = pRenderState[i].uintValue;
5728	*/
5729	break;
5730
5731	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
5732	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
5733	/* Invert the selected mode because of y-inversion (?) */
5734	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
5735	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5736	break;
5737
5738	case SVGA3D_RS_OUTPUTGAMMA: /* float */
5739	//AssertFailed();
5740	/*
5741	D3DRS_SRGBWRITEENABLE ??
5742	renderState = D3DRS_OUTPUTGAMMA;
5743	val = pRenderState[i].uintValue;
5744	*/
5745	break;
5746
5747	#if 0
5748
5749	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
5750	//AssertFailed();
5751	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
5752	val = pRenderState[i].uintValue;
5753	break;
5754
5755	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
5756	renderState = D3DRS_TEXTUREFACTOR;
5757	val = pRenderState[i].uintValue;
5758	break;
5759
5760	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
5761	renderState = D3DRS_LOCALVIEWER;
5762	val = pRenderState[i].uintValue;
5763	break;
5764
5765	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
5766	AssertFailed();
5767	/*
5768	renderState = D3DRS_ZVISIBLE;
5769	val = pRenderState[i].uintValue;
5770	*/
5771	break;
5772
5773	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
5774	renderState = D3DRS_CLIPPING;
5775	val = pRenderState[i].uintValue;
5776	break;
5777
5778	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
5779	glTexParameter GL_TEXTURE_WRAP_S
5780	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
5781	renderState = D3DRS_WRAP0;
5782	val = pRenderState[i].uintValue;
5783	break;
5784
5785	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
5786	glTexParameter GL_TEXTURE_WRAP_T
5787	renderState = D3DRS_WRAP1;
5788	val = pRenderState[i].uintValue;
5789	break;
5790
5791	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
5792	glTexParameter GL_TEXTURE_WRAP_R
5793	renderState = D3DRS_WRAP2;
5794	val = pRenderState[i].uintValue;
5795	break;
5796
5797
5798	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
5799	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
5800	val = pRenderState[i].uintValue;
5801	break;
5802
5803
5804	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
5805	renderState = D3DRS_BLENDOPALPHA;
5806	val = pRenderState[i].uintValue;
5807	break;
5808
5809	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
5810	AssertFailed();
5811	/*
5812	renderState = D3DRS_TRANSPARENCYANTIALIAS;
5813	val = pRenderState[i].uintValue;
5814	*/
5815	break;
5816
5817	#endif
5818	default:
5819	AssertFailed();
5820	break;
5821	}
5822
5823	if (enableCap != ~0U)
5824	{
5825	if (val)
5826	glEnable(enableCap);
5827	else
5828	glDisable(enableCap);
5829	}
5830	}
5831
5832	return VINF_SUCCESS;
5833	}
5834
5835	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
5836	{
5837	PVMSVGA3DCONTEXT pContext;
5838	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5839	PVMSVGA3DSURFACE pRenderTarget;
5840
5841	AssertReturn(pState, VERR_NO_MEMORY);
5842	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
5843	AssertReturn(target.face == 0, VERR_INVALID_PARAMETER);
5844
5845	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
5846
5847	if ( cid >= pState->cContexts
5848	\|\| pState->papContexts[cid]->id != cid)
5849	{
5850	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
5851	return VERR_INVALID_PARAMETER;
5852	}
5853	pContext = pState->papContexts[cid];
5854	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5855
5856	/* Save for vm state save/restore. */
5857	pContext->state.aRenderTargets[type] = target.sid;
5858
5859	if (target.sid == SVGA3D_INVALID_ID)
5860	{
5861	/* Disable render target. */
5862	switch (type)
5863	{
5864	case SVGA3D_RT_DEPTH:
5865	case SVGA3D_RT_STENCIL:
5866	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
5867	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5868	break;
5869
5870	case SVGA3D_RT_COLOR0:
5871	case SVGA3D_RT_COLOR1:
5872	case SVGA3D_RT_COLOR2:
5873	case SVGA3D_RT_COLOR3:
5874	case SVGA3D_RT_COLOR4:
5875	case SVGA3D_RT_COLOR5:
5876	case SVGA3D_RT_COLOR6:
5877	case SVGA3D_RT_COLOR7:
5878	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
5879	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
5880	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5881	break;
5882
5883	default:
5884	AssertFailedReturn(VERR_INVALID_PARAMETER);
5885	}
5886	return VINF_SUCCESS;
5887	}
5888
5889	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5890	AssertReturn(target.sid < pState->cSurfaces && pState->papSurfaces[target.sid]->id == target.sid, VERR_INVALID_PARAMETER);
5891	pRenderTarget = pState->papSurfaces[target.sid];
5892
5893	switch (type)
5894	{
5895	case SVGA3D_RT_DEPTH:
5896	case SVGA3D_RT_STENCIL:
5897	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
5898	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
5899	{
5900	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->flags, pRenderTarget->internalFormatGL));
5901	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
5902	pContext = &pState->SharedCtx;
5903	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5904	#endif
5905	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
5906	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5907
5908	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
5909	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5910
5911	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
5912	pRenderTarget->internalFormatGL,
5913	pRenderTarget->pMipmapLevels[0].size.width,
5914	pRenderTarget->pMipmapLevels[0].size.height);
5915	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5916
5917	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
5918	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
5919	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5920
5921	pContext = pState->papContexts[cid];
5922	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5923	# ifdef VMSVGA3D_OGL_WITH_SHARED_CTX_EXPERIMENT_1
5924	pRenderTarget->idWeakContextAssociation = cid;
5925	# endif
5926	#else
5927	LogFlow(("vmsvga3dSetRenderTarget: sid=%x idAssociatedContext %#x -> %#x\n", pRenderTarget->id, pRenderTarget->idAssociatedContext, cid));
5928	pRenderTarget->idAssociatedContext = cid;
5929	#endif
5930	}
5931	#ifndef VMSVGA3D_OGL_WITH_SHARED_CTX
5932	else
5933	#endif
5934	{
5935	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
5936	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5937	}
5938	#ifndef VMSVGA3D_OGL_WITH_SHARED_CTX
5939	Assert(pRenderTarget->idAssociatedContext == cid);
5940	#endif
5941	Assert(!pRenderTarget->fDirty);
5942	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
5943
5944	pRenderTarget->flags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
5945
5946	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
5947	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
5948	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
5949	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5950	break;
5951
5952	case SVGA3D_RT_COLOR0:
5953	case SVGA3D_RT_COLOR1:
5954	case SVGA3D_RT_COLOR2:
5955	case SVGA3D_RT_COLOR3:
5956	case SVGA3D_RT_COLOR4:
5957	case SVGA3D_RT_COLOR5:
5958	case SVGA3D_RT_COLOR6:
5959	case SVGA3D_RT_COLOR7:
5960	{
5961	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
5962	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
5963	{
5964	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));
5965	int rc = vmsvga3dCreateTexture(pState, pContext, cid, pRenderTarget);
5966	AssertRCReturn(rc, rc);
5967	}
5968
5969	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
5970	Assert(!pRenderTarget->fDirty);
5971
5972	pRenderTarget->flags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
5973
5974	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
5975	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5976
5977	pContext->sidRenderTarget = target.sid;
5978
5979	#ifdef DEBUG
5980	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
5981	if (status != GL_FRAMEBUFFER_COMPLETE)
5982	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
5983	#endif
5984	/* @todo use glDrawBuffers too? */
5985	break;
5986	}
5987
5988	default:
5989	AssertFailedReturn(VERR_INVALID_PARAMETER);
5990	}
5991
5992	return VINF_SUCCESS;
5993	}
5994
5995	#if 0
5996	/**
5997	* Convert SVGA texture combiner value to its D3D equivalent
5998	*/
5999	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
6000	{
6001	switch (value)
6002	{
6003	case SVGA3D_TC_DISABLE:
6004	return D3DTOP_DISABLE;
6005	case SVGA3D_TC_SELECTARG1:
6006	return D3DTOP_SELECTARG1;
6007	case SVGA3D_TC_SELECTARG2:
6008	return D3DTOP_SELECTARG2;
6009	case SVGA3D_TC_MODULATE:
6010	return D3DTOP_MODULATE;
6011	case SVGA3D_TC_ADD:
6012	return D3DTOP_ADD;
6013	case SVGA3D_TC_ADDSIGNED:
6014	return D3DTOP_ADDSIGNED;
6015	case SVGA3D_TC_SUBTRACT:
6016	return D3DTOP_SUBTRACT;
6017	case SVGA3D_TC_BLENDTEXTUREALPHA:
6018	return D3DTOP_BLENDTEXTUREALPHA;
6019	case SVGA3D_TC_BLENDDIFFUSEALPHA:
6020	return D3DTOP_BLENDDIFFUSEALPHA;
6021	case SVGA3D_TC_BLENDCURRENTALPHA:
6022	return D3DTOP_BLENDCURRENTALPHA;
6023	case SVGA3D_TC_BLENDFACTORALPHA:
6024	return D3DTOP_BLENDFACTORALPHA;
6025	case SVGA3D_TC_MODULATE2X:
6026	return D3DTOP_MODULATE2X;
6027	case SVGA3D_TC_MODULATE4X:
6028	return D3DTOP_MODULATE4X;
6029	case SVGA3D_TC_DSDT:
6030	AssertFailed(); /* @todo ??? */
6031	return D3DTOP_DISABLE;
6032	case SVGA3D_TC_DOTPRODUCT3:
6033	return D3DTOP_DOTPRODUCT3;
6034	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
6035	return D3DTOP_BLENDTEXTUREALPHAPM;
6036	case SVGA3D_TC_ADDSIGNED2X:
6037	return D3DTOP_ADDSIGNED2X;
6038	case SVGA3D_TC_ADDSMOOTH:
6039	return D3DTOP_ADDSMOOTH;
6040	case SVGA3D_TC_PREMODULATE:
6041	return D3DTOP_PREMODULATE;
6042	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
6043	return D3DTOP_MODULATEALPHA_ADDCOLOR;
6044	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
6045	return D3DTOP_MODULATECOLOR_ADDALPHA;
6046	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
6047	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
6048	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
6049	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
6050	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
6051	return D3DTOP_BUMPENVMAPLUMINANCE;
6052	case SVGA3D_TC_MULTIPLYADD:
6053	return D3DTOP_MULTIPLYADD;
6054	case SVGA3D_TC_LERP:
6055	return D3DTOP_LERP;
6056	default:
6057	AssertFailed();
6058	return D3DTOP_DISABLE;
6059	}
6060	}
6061
6062	/**
6063	* Convert SVGA texture arg data value to its D3D equivalent
6064	*/
6065	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
6066	{
6067	switch (value)
6068	{
6069	case SVGA3D_TA_CONSTANT:
6070	return D3DTA_CONSTANT;
6071	case SVGA3D_TA_PREVIOUS:
6072	return D3DTA_CURRENT; /* current = previous */
6073	case SVGA3D_TA_DIFFUSE:
6074	return D3DTA_DIFFUSE;
6075	case SVGA3D_TA_TEXTURE:
6076	return D3DTA_TEXTURE;
6077	case SVGA3D_TA_SPECULAR:
6078	return D3DTA_SPECULAR;
6079	default:
6080	AssertFailed();
6081	return 0;
6082	}
6083	}
6084
6085	/**
6086	* Convert SVGA texture transform flag value to its D3D equivalent
6087	*/
6088	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
6089	{
6090	switch (value)
6091	{
6092	case SVGA3D_TEX_TRANSFORM_OFF:
6093	return D3DTTFF_DISABLE;
6094	case SVGA3D_TEX_TRANSFORM_S:
6095	return D3DTTFF_COUNT1; /* @todo correct? */
6096	case SVGA3D_TEX_TRANSFORM_T:
6097	return D3DTTFF_COUNT2; /* @todo correct? */
6098	case SVGA3D_TEX_TRANSFORM_R:
6099	return D3DTTFF_COUNT3; /* @todo correct? */
6100	case SVGA3D_TEX_TRANSFORM_Q:
6101	return D3DTTFF_COUNT4; /* @todo correct? */
6102	case SVGA3D_TEX_PROJECTED:
6103	return D3DTTFF_PROJECTED;
6104	default:
6105	AssertFailed();
6106	return 0;
6107	}
6108	}
6109	#endif
6110
6111	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
6112	{
6113	switch (value)
6114	{
6115	case SVGA3D_TEX_ADDRESS_WRAP:
6116	return GL_REPEAT;
6117	case SVGA3D_TEX_ADDRESS_MIRROR:
6118	return GL_MIRRORED_REPEAT;
6119	case SVGA3D_TEX_ADDRESS_CLAMP:
6120	return GL_CLAMP_TO_EDGE;
6121	case SVGA3D_TEX_ADDRESS_BORDER:
6122	return GL_CLAMP_TO_BORDER;
6123	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
6124	AssertFailed();
6125	return GL_CLAMP_TO_EDGE_SGIS; /* @todo correct? */
6126
6127	case SVGA3D_TEX_ADDRESS_EDGE:
6128	case SVGA3D_TEX_ADDRESS_INVALID:
6129	default:
6130	AssertFailed();
6131	return GL_REPEAT; /* default */
6132	}
6133	}
6134
6135	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
6136	{
6137	switch (value)
6138	{
6139	case SVGA3D_TEX_FILTER_NONE:
6140	case SVGA3D_TEX_FILTER_LINEAR:
6141	return GL_LINEAR;
6142	case SVGA3D_TEX_FILTER_NEAREST:
6143	return GL_NEAREST;
6144	case SVGA3D_TEX_FILTER_ANISOTROPIC:
6145	/* @todo */
6146	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
6147	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
6148	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
6149	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
6150	default:
6151	AssertFailed();
6152	return GL_LINEAR; /* default */
6153	}
6154	}
6155
6156	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
6157	{
6158	/* flip the red and blue bytes */
6159	uint8_t blue = value & 0xff;
6160	uint8_t red = (value >> 16) & 0xff;
6161	return (value & 0xff00ff00) \| red \| (blue << 16);
6162	}
6163
6164	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
6165	{
6166	GLenum val;
6167	GLenum currentStage = ~0L;
6168	PVMSVGA3DCONTEXT pContext;
6169	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6170	AssertReturn(pState, VERR_NO_MEMORY);
6171
6172	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
6173
6174	if ( cid >= pState->cContexts
6175	\|\| pState->papContexts[cid]->id != cid)
6176	{
6177	Log(("vmsvga3dSetTextureState invalid context id!\n"));
6178	return VERR_INVALID_PARAMETER;
6179	}
6180	pContext = pState->papContexts[cid];
6181	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6182
6183	for (unsigned i = 0; i < cTextureStates; i++)
6184	{
6185	GLenum textureType = ~0U;
6186	GLenum samplerType = ~0U;
6187
6188	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));
6189	/* Record the texture state for vm state saving. */
6190	if ( pTextureState[i].stage < SVGA3D_MAX_TEXTURE_STAGE
6191	&& pTextureState[i].name < SVGA3D_TS_MAX)
6192	{
6193	pContext->state.aTextureState[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
6194	}
6195
6196	/* Active the right texture unit for subsequent texture state changes. */
6197	if (pTextureState[i].stage != currentStage \|\| i == 0)
6198	{
6199	/** @todo Is this the appropriate limit for all kinds of textures? It is the
6200	* size of aSidActiveTexture and for binding/unbinding we cannot exceed it. */
6201	if (pTextureState[i].stage < SVGA3D_MAX_TEXTURE_STAGE)
6202	{
6203	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
6204	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6205	currentStage = pTextureState[i].stage;
6206	}
6207	else
6208	{
6209	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
6210	continue;
6211	}
6212	}
6213
6214	switch (pTextureState[i].name)
6215	{
6216	case SVGA3D_TS_BUMPENVMAT00: /* float */
6217	case SVGA3D_TS_BUMPENVMAT01: /* float */
6218	case SVGA3D_TS_BUMPENVMAT10: /* float */
6219	case SVGA3D_TS_BUMPENVMAT11: /* float */
6220	case SVGA3D_TS_BUMPENVLSCALE: /* float */
6221	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
6222	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
6223	break;
6224
6225	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
6226	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
6227	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
6228	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
6229	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
6230	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
6231	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
6232	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
6233	/* @todo; not used by MesaGL */
6234	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
6235	break;
6236	#if 0
6237
6238	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
6239	textureType = D3DTSS_TEXCOORDINDEX;
6240	val = pTextureState[i].value;
6241	break;
6242
6243	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
6244	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
6245	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
6246	break;
6247	#endif
6248
6249	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
6250	if (pTextureState[i].value == SVGA3D_INVALID_ID)
6251	{
6252	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x replacing=%x\n",
6253	currentStage, pTextureState[i].value, pContext->aSidActiveTexture[currentStage]));
6254
6255	pContext->aSidActiveTexture[currentStage] = SVGA3D_INVALID_ID;
6256	/* Unselect the currently associated texture. */
6257	glBindTexture(GL_TEXTURE_2D, 0);
6258	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6259	/* Necessary for the fixed pipeline. */
6260	glDisable(GL_TEXTURE_2D);
6261	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6262	}
6263	else
6264	{
6265	uint32_t sid = pTextureState[i].value;
6266
6267	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
6268	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
6269
6270	PVMSVGA3DSURFACE pSurface = pState->papSurfaces[sid];
6271
6272	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x (%d,%d) replacing=%x\n",
6273	currentStage, pTextureState[i].value, pSurface->pMipmapLevels[0].size.width,
6274	pSurface->pMipmapLevels[0].size.height, pContext->aSidActiveTexture[currentStage]));
6275
6276	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
6277	{
6278	#ifndef VMSVGA3D_OGL_WITH_SHARED_CTX
6279	Assert(pSurface->idAssociatedContext == SVGA3D_INVALID_ID);
6280	#endif
6281	Log(("CreateTexture (%d,%d) level=%d\n", pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height, pSurface->faces[0].numMipLevels));
6282	int rc = vmsvga3dCreateTexture(pState, pContext, cid, pSurface);
6283	AssertRCReturn(rc, rc);
6284	}
6285
6286	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
6287	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6288
6289	/* Necessary for the fixed pipeline. */
6290	glEnable(GL_TEXTURE_2D);
6291	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6292
6293	if (pContext->aSidActiveTexture[currentStage] != sid)
6294	{
6295	/* Recreate the texture state as glBindTexture resets them all (sigh). */
6296	for (uint32_t iStage = 0; iStage < SVGA3D_MAX_TEXTURE_STAGE; iStage++)
6297	{
6298	for (uint32_t j = 0; j < SVGA3D_TS_MAX; j++)
6299	{
6300	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureState[iStage][j];
6301
6302	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
6303	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
6304	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
6305	}
6306	}
6307	}
6308	pContext->aSidActiveTexture[currentStage] = sid;
6309	}
6310	/* Finished; continue with the next one. */
6311	continue;
6312
6313	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
6314	textureType = GL_TEXTURE_WRAP_R; /* R = W */
6315	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
6316	break;
6317
6318	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
6319	textureType = GL_TEXTURE_WRAP_S; /* S = U */
6320	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
6321	break;
6322
6323	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
6324	textureType = GL_TEXTURE_WRAP_T; /* T = V */
6325	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
6326	break;
6327
6328	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
6329	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
6330	{
6331	uint32_t mipFilter = pContext->state.aTextureState[currentStage][SVGA3D_TS_MIPFILTER].value;
6332	uint32_t minFilter = pContext->state.aTextureState[currentStage][SVGA3D_TS_MINFILTER].value;
6333
6334	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
6335	textureType = GL_TEXTURE_MIN_FILTER;
6336	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
6337	{
6338	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
6339	{
6340	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
6341	val = GL_NEAREST_MIPMAP_LINEAR;
6342	else
6343	val = GL_NEAREST_MIPMAP_NEAREST;
6344	}
6345	else
6346	{
6347	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
6348	val = GL_LINEAR_MIPMAP_LINEAR;
6349	else
6350	val = GL_LINEAR_MIPMAP_NEAREST;
6351	}
6352	}
6353	else
6354	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
6355	break;
6356	}
6357
6358	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
6359	textureType = GL_TEXTURE_MAG_FILTER;
6360	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
6361	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
6362	break;
6363
6364	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
6365	{
6366	GLfloat color[4]; /* red, green, blue, alpha */
6367
6368	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
6369
6370	glTexParameterfv(GL_TEXTURE_2D /* @todo flexible type /, GL_TEXTURE_BORDER_COLOR, color); / Identical; default 0.0 identical too */
6371	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6372	break;
6373	}
6374
6375	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
6376	glTexParameterf(GL_TEXTURE_2D /* @todo flexible type /, GL_TEXTURE_LOD_BIAS, pTextureState[i].value); / Identical; default 0.0 identical too */
6377	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6378	break;
6379
6380	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
6381	textureType = GL_TEXTURE_BASE_LEVEL;
6382	val = pTextureState[i].value;
6383	break;
6384
6385	#if 0
6386	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
6387	samplerType = D3DSAMP_MAXANISOTROPY;
6388	val = pTextureState[i].value; /* Identical?? */
6389	break;
6390
6391	case SVGA3D_TS_GAMMA: /* float */
6392	samplerType = D3DSAMP_SRGBTEXTURE;
6393	/* Boolean in D3D */
6394	if (pTextureState[i].floatValue == 1.0f)
6395	val = FALSE;
6396	else
6397	val = TRUE;
6398	break;
6399	#endif
6400	/* Internal commands, that don't map directly to the SetTextureStageState API. */
6401	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
6402	AssertFailed();
6403	break;
6404
6405	default:
6406	//AssertFailed();
6407	break;
6408	}
6409
6410	if (textureType != ~0U)
6411	{
6412	glTexParameteri(GL_TEXTURE_2D /* @todo flexible type */, textureType, val);
6413	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6414	}
6415	}
6416
6417	return VINF_SUCCESS;
6418	}
6419
6420	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
6421	{
6422	PVMSVGA3DCONTEXT pContext;
6423	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6424	AssertReturn(pState, VERR_NO_MEMORY);
6425	GLenum oglFace;
6426
6427	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
6428
6429	if ( cid >= pState->cContexts
6430	\|\| pState->papContexts[cid]->id != cid)
6431	{
6432	Log(("vmsvga3dSetMaterial invalid context id!\n"));
6433	return VERR_INVALID_PARAMETER;
6434	}
6435	pContext = pState->papContexts[cid];
6436	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6437
6438	switch (face)
6439	{
6440	case SVGA3D_FACE_NONE:
6441	case SVGA3D_FACE_FRONT:
6442	oglFace = GL_FRONT;
6443	break;
6444
6445	case SVGA3D_FACE_BACK:
6446	oglFace = GL_BACK;
6447	break;
6448
6449	case SVGA3D_FACE_FRONT_BACK:
6450	oglFace = GL_FRONT_AND_BACK;
6451	break;
6452
6453	default:
6454	AssertFailedReturn(VERR_INVALID_PARAMETER);
6455	}
6456
6457	/* Save for vm state save/restore. */
6458	pContext->state.aMaterial[face].fValid = true;
6459	pContext->state.aMaterial[face].material = *pMaterial;
6460	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
6461
6462	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
6463	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
6464	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
6465	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
6466	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
6467	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6468
6469	return VINF_SUCCESS;
6470	}
6471
6472	/* @todo Move into separate library as we are using logic from Wine here. */
6473	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
6474	{
6475	PVMSVGA3DCONTEXT pContext;
6476	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6477	AssertReturn(pState, VERR_NO_MEMORY);
6478	float QuadAttenuation;
6479
6480	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
6481
6482	if ( cid >= pState->cContexts
6483	\|\| pState->papContexts[cid]->id != cid)
6484	{
6485	Log(("vmsvga3dSetLightData invalid context id!\n"));
6486	return VERR_INVALID_PARAMETER;
6487	}
6488	pContext = pState->papContexts[cid];
6489	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6490
6491	/* Store for vm state save/restore */
6492	if (index < SVGA3D_MAX_LIGHTS)
6493	{
6494	pContext->state.aLightData[index].fValidData = true;
6495	pContext->state.aLightData[index].data = *pData;
6496	}
6497	else
6498	AssertFailed();
6499
6500	if ( pData->attenuation0 < 0.0f
6501	\|\| pData->attenuation1 < 0.0f
6502	\|\| pData->attenuation2 < 0.0f)
6503	{
6504	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
6505	return VINF_SUCCESS; /* ignore; could crash the GL driver */
6506	}
6507
6508	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
6509	glMatrixMode(GL_MODELVIEW);
6510	glPushMatrix();
6511	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
6512
6513	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
6514	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
6515	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
6516
6517	if (pData->range * pData->range >= FLT_MIN)
6518	QuadAttenuation = 1.4f / (pData->range * pData->range);
6519	else
6520	QuadAttenuation = 0.0f;
6521
6522	switch (pData->type)
6523	{
6524	case SVGA3D_LIGHTTYPE_POINT:
6525	{
6526	GLfloat position[4];
6527
6528	position[0] = pData->position[0];
6529	position[1] = pData->position[1];
6530	position[2] = pData->position[2];
6531	position[3] = 1.0f;
6532
6533	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
6534	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6535
6536	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
6537	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6538
6539	/* Attenuation - Are these right? guessing... */
6540	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
6541	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6542
6543	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
6544	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6545
6546	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
6547	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6548
6549	/* @todo range */
6550	break;
6551	}
6552
6553	case SVGA3D_LIGHTTYPE_SPOT1:
6554	{
6555	GLfloat exponent;
6556	GLfloat position[4];
6557	const GLfloat pi = 4.0f * atanf(1.0f);
6558
6559	position[0] = pData->position[0];
6560	position[1] = pData->position[1];
6561	position[2] = pData->position[2];
6562	position[3] = 1.0f;
6563
6564	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
6565	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6566
6567	position[0] = pData->direction[0];
6568	position[1] = pData->direction[1];
6569	position[2] = pData->direction[2];
6570	position[3] = 1.0f;
6571
6572	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
6573	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6574
6575	/*
6576	* opengl-ish and d3d-ish spot lights use too different models for the
6577	* light "intensity" as a function of the angle towards the main light direction,
6578	* so we only can approximate very roughly.
6579	* however spot lights are rather rarely used in games (if ever used at all).
6580	* furthermore if still used, probably nobody pays attention to such details.
6581	*/
6582	if (pData->falloff == 0)
6583	{
6584	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
6585	* falloff resp. exponent parameter as an exponent, so the spot light lighting
6586	* will always be 1.0 for both of them, and we don't have to care for the
6587	* rest of the rather complex calculation
6588	*/
6589	exponent = 0.0f;
6590	}
6591	else
6592	{
6593	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
6594	if (rho < 0.0001f)
6595	rho = 0.0001f;
6596	exponent = -0.3f/log(cos(rho/2));
6597	}
6598	if (exponent > 128.0f)
6599	exponent = 128.0f;
6600
6601	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
6602	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6603
6604	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
6605	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6606
6607	/* Attenuation - Are these right? guessing... */
6608	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
6609	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6610
6611	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
6612	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6613
6614	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
6615	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6616
6617	/* @todo range */
6618	break;
6619	}
6620
6621	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
6622	{
6623	GLfloat position[4];
6624
6625	position[0] = -pData->direction[0];
6626	position[1] = -pData->direction[1];
6627	position[2] = -pData->direction[2];
6628	position[3] = 0.0f;
6629
6630	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
6631	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6632
6633	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
6634	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6635
6636	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
6637	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6638	break;
6639	}
6640
6641	case SVGA3D_LIGHTTYPE_SPOT2:
6642	default:
6643	Log(("Unsupported light type!!\n"));
6644	return VERR_INVALID_PARAMETER;
6645	}
6646
6647	/* Restore the modelview matrix */
6648	glPopMatrix();
6649
6650	return VINF_SUCCESS;
6651	}
6652
6653	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
6654	{
6655	PVMSVGA3DCONTEXT pContext;
6656	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6657	AssertReturn(pState, VERR_NO_MEMORY);
6658
6659	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
6660
6661	if ( cid >= pState->cContexts
6662	\|\| pState->papContexts[cid]->id != cid)
6663	{
6664	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
6665	return VERR_INVALID_PARAMETER;
6666	}
6667	pContext = pState->papContexts[cid];
6668	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6669
6670	/* Store for vm state save/restore */
6671	if (index < SVGA3D_MAX_LIGHTS)
6672	pContext->state.aLightData[index].fEnabled = !!enabled;
6673	else
6674	AssertFailed();
6675
6676	if (enabled)
6677	{
6678	/* Load the default settings if none have been set yet. */
6679	if (!pContext->state.aLightData[index].fValidData)
6680	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
6681	glEnable(GL_LIGHT0 + index);
6682	}
6683	else
6684	glDisable(GL_LIGHT0 + index);
6685
6686	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6687	return VINF_SUCCESS;
6688	}
6689
6690	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
6691	{
6692	PVMSVGA3DCONTEXT pContext;
6693	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6694	AssertReturn(pState, VERR_NO_MEMORY);
6695
6696	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
6697
6698	if ( cid >= pState->cContexts
6699	\|\| pState->papContexts[cid]->id != cid)
6700	{
6701	Log(("vmsvga3dSetViewPort invalid context id!\n"));
6702	return VERR_INVALID_PARAMETER;
6703	}
6704	pContext = pState->papContexts[cid];
6705	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6706
6707	/* Save for vm state save/restore. */
6708	pContext->state.RectViewPort = *pRect;
6709	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
6710
6711	/* @todo y-inversion for partial viewport coordinates? */
6712	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
6713	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6714
6715	/* Reset the projection matrix as that relies on the viewport setting. */
6716	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
6717	{
6718	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
6719	}
6720	else
6721	{
6722	float matrix[16];
6723
6724	/* identity matrix if no matrix set. */
6725	memset(matrix, 0, sizeof(matrix));
6726	matrix[0] = 1.0;
6727	matrix[5] = 1.0;
6728	matrix[10] = 1.0;
6729	matrix[15] = 1.0;
6730	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
6731	}
6732
6733	return VINF_SUCCESS;
6734	}
6735
6736	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
6737	{
6738	PVMSVGA3DCONTEXT pContext;
6739	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6740	AssertReturn(pState, VERR_NO_MEMORY);
6741	double oglPlane[4];
6742
6743	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)));
6744	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
6745
6746	if ( cid >= pState->cContexts
6747	\|\| pState->papContexts[cid]->id != cid)
6748	{
6749	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
6750	return VERR_INVALID_PARAMETER;
6751	}
6752	pContext = pState->papContexts[cid];
6753	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6754
6755	/* Store for vm state save/restore. */
6756	pContext->state.aClipPlane[index].fValid = true;
6757	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
6758
6759	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
6760	oglPlane[0] = (double)plane[0];
6761	oglPlane[1] = (double)plane[1];
6762	oglPlane[2] = (double)plane[2];
6763	oglPlane[3] = (double)plane[3];
6764
6765	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
6766	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6767
6768	return VINF_SUCCESS;
6769	}
6770
6771	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
6772	{
6773	PVMSVGA3DCONTEXT pContext;
6774	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6775	AssertReturn(pState, VERR_NO_MEMORY);
6776
6777	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
6778
6779	if ( cid >= pState->cContexts
6780	\|\| pState->papContexts[cid]->id != cid)
6781	{
6782	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
6783	return VERR_INVALID_PARAMETER;
6784	}
6785	pContext = pState->papContexts[cid];
6786	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6787
6788	/* Store for vm state save/restore. */
6789	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
6790	pContext->state.RectScissor = *pRect;
6791
6792	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
6793	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6794
6795	return VINF_SUCCESS;
6796	}
6797
6798	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
6799	{
6800	/* Convert byte color components to float (0-1.0) */
6801	*pAlpha = (GLfloat)(color >> 24) / 255.0;
6802	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
6803	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
6804	*pBlue = (GLfloat)(color & 0xff) / 255.0;
6805	}
6806
6807	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
6808	uint32_t cRects, SVGA3dRect *pRect)
6809	{
6810	GLbitfield mask = 0;
6811	PVMSVGA3DCONTEXT pContext;
6812	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6813	AssertReturn(pState, VERR_NO_MEMORY);
6814	GLboolean fDepthWriteEnabled = GL_FALSE;
6815
6816	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));
6817
6818	if ( cid >= pState->cContexts
6819	\|\| pState->papContexts[cid]->id != cid)
6820	{
6821	Log(("vmsvga3dCommandClear invalid context id!\n"));
6822	return VERR_INVALID_PARAMETER;
6823	}
6824	pContext = pState->papContexts[cid];
6825	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6826
6827	if (clearFlag & SVGA3D_CLEAR_COLOR)
6828	{
6829	GLfloat red, green, blue, alpha;
6830
6831	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
6832
6833	/* Set the color clear value. */
6834	glClearColor(red, green, blue, alpha);
6835
6836	mask \|= GL_COLOR_BUFFER_BIT;
6837	}
6838	if (clearFlag & SVGA3D_CLEAR_STENCIL)
6839	{
6840	/* @todo possibly the same problem as with glDepthMask */
6841	glClearStencil(stencil);
6842	mask \|= GL_STENCIL_BUFFER_BIT;
6843	}
6844	if (clearFlag & SVGA3D_CLEAR_DEPTH)
6845	{
6846	glClearDepth((GLdouble)depth);
6847	mask \|= GL_DEPTH_BUFFER_BIT;
6848
6849	/* glClear will not clear the depth buffer if writing is disabled. */
6850	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
6851	if (fDepthWriteEnabled == GL_FALSE)
6852	glDepthMask(GL_TRUE);
6853	}
6854
6855	if (cRects)
6856	{
6857	/* Save the current scissor test bit and scissor box. */
6858	glPushAttrib(GL_SCISSOR_BIT);
6859	glEnable(GL_SCISSOR_TEST);
6860	for (unsigned i=0; i < cRects; i++)
6861	{
6862	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));
6863	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
6864	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6865	glClear(mask);
6866	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6867	}
6868	/* Restore the old scissor test bit and box */
6869	glPopAttrib();
6870	}
6871	else
6872	{
6873	glClear(mask);
6874	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6875	}
6876
6877	/* Restore depth write state. */
6878	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
6879	&& fDepthWriteEnabled == GL_FALSE)
6880	glDepthMask(GL_FALSE);
6881
6882	return VINF_SUCCESS;
6883	}
6884
6885	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
6886	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
6887	{
6888	normalized = GL_FALSE;
6889	switch (identity.type)
6890	{
6891	case SVGA3D_DECLTYPE_FLOAT1:
6892	size = 1;
6893	type = GL_FLOAT;
6894	break;
6895	case SVGA3D_DECLTYPE_FLOAT2:
6896	size = 2;
6897	type = GL_FLOAT;
6898	break;
6899	case SVGA3D_DECLTYPE_FLOAT3:
6900	size = 3;
6901	type = GL_FLOAT;
6902	break;
6903	case SVGA3D_DECLTYPE_FLOAT4:
6904	size = 4;
6905	type = GL_FLOAT;
6906	break;
6907
6908	case SVGA3D_DECLTYPE_D3DCOLOR:
6909	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
6910	type = GL_UNSIGNED_BYTE;
6911	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
6912	break;
6913
6914	case SVGA3D_DECLTYPE_UBYTE4N:
6915	normalized = GL_TRUE;
6916	/* no break */
6917	case SVGA3D_DECLTYPE_UBYTE4:
6918	size = 4;
6919	type = GL_UNSIGNED_BYTE;
6920	break;
6921
6922	case SVGA3D_DECLTYPE_SHORT2N:
6923	normalized = GL_TRUE;
6924	/* no break */
6925	case SVGA3D_DECLTYPE_SHORT2:
6926	size = 2;
6927	type = GL_SHORT;
6928	break;
6929
6930	case SVGA3D_DECLTYPE_SHORT4N:
6931	normalized = GL_TRUE;
6932	/* no break */
6933	case SVGA3D_DECLTYPE_SHORT4:
6934	size = 4;
6935	type = GL_SHORT;
6936	break;
6937
6938	case SVGA3D_DECLTYPE_USHORT4N:
6939	normalized = GL_TRUE;
6940	size = 4;
6941	type = GL_UNSIGNED_SHORT;
6942	break;
6943
6944	case SVGA3D_DECLTYPE_USHORT2N:
6945	normalized = GL_TRUE;
6946	size = 2;
6947	type = GL_UNSIGNED_SHORT;
6948	break;
6949
6950	case SVGA3D_DECLTYPE_UDEC3:
6951	size = 3;
6952	type = GL_UNSIGNED_INT_2_10_10_10_REV; /* @todo correct? */
6953	break;
6954
6955	case SVGA3D_DECLTYPE_DEC3N:
6956	normalized = true;
6957	size = 3;
6958	type = GL_INT_2_10_10_10_REV; /* @todo correct? */
6959	break;
6960
6961	case SVGA3D_DECLTYPE_FLOAT16_2:
6962	size = 2;
6963	type = GL_HALF_FLOAT;
6964	break;
6965	case SVGA3D_DECLTYPE_FLOAT16_4:
6966	size = 4;
6967	type = GL_HALF_FLOAT;
6968	break;
6969	default:
6970	AssertFailedReturn(VERR_INVALID_PARAMETER);
6971	}
6972
6973	//pVertexElement->Method = identity.method;
6974	//pVertexElement->Usage = identity.usage;
6975
6976	return VINF_SUCCESS;
6977	}
6978
6979	/* Convert VMWare primitive type to its OpenGL equivalent. */
6980	/* Calculate the vertex count based on the primitive type and nr of primitives. */
6981	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
6982	{
6983	switch (PrimitiveType)
6984	{
6985	case SVGA3D_PRIMITIVE_TRIANGLELIST:
6986	*pMode = GL_TRIANGLES;
6987	pcVertices = cPrimitiveCount 3;
6988	break;
6989	case SVGA3D_PRIMITIVE_POINTLIST:
6990	*pMode = GL_POINTS;
6991	*pcVertices = cPrimitiveCount;
6992	break;
6993	case SVGA3D_PRIMITIVE_LINELIST:
6994	*pMode = GL_LINES;
6995	pcVertices = cPrimitiveCount 2;
6996	break;
6997	case SVGA3D_PRIMITIVE_LINESTRIP:
6998	*pMode = GL_LINE_STRIP;
6999	*pcVertices = cPrimitiveCount + 1;
7000	break;
7001	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
7002	*pMode = GL_TRIANGLE_STRIP;
7003	*pcVertices = cPrimitiveCount + 2;
7004	break;
7005	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
7006	*pMode = GL_TRIANGLE_FAN;
7007	*pcVertices = cPrimitiveCount + 2;
7008	break;
7009	default:
7010	return VERR_INVALID_PARAMETER;
7011	}
7012	return VINF_SUCCESS;
7013	}
7014
7015	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
7016	{
7017	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
7018	PVMSVGA3DSURFACE pVertexSurface;
7019
7020	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
7021	AssertReturn(sidVertex < pState->cSurfaces && pState->papSurfaces[sidVertex]->id == sidVertex, VERR_INVALID_PARAMETER);
7022
7023	pVertexSurface = pState->papSurfaces[sidVertex];
7024	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
7025
7026	/* Create and/or bind the vertex buffer. */
7027	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
7028	{
7029	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
7030	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
7031	PVMSVGA3DCONTEXT pSavedCtx = pContext;
7032	pContext = &pState->SharedCtx;
7033	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7034	#endif
7035
7036	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
7037	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7038
7039	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
7040	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7041
7042	Assert(pVertexSurface->fDirty);
7043	/* @todo rethink usage dynamic/static */
7044	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
7045	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7046
7047	pVertexSurface->pMipmapLevels[0].fDirty = false;
7048	pVertexSurface->fDirty = false;
7049
7050	pVertexSurface->flags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
7051
7052	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
7053	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
7054	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7055
7056	pContext = pSavedCtx;
7057	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7058	#endif
7059	}
7060	#ifndef VMSVGA3D_OGL_WITH_SHARED_CTX
7061	else
7062	#endif
7063	{
7064	Assert(pVertexSurface->fDirty == false);
7065	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
7066	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7067	}
7068	#ifndef VMSVGA3D_OGL_WITH_SHARED_CTX
7069	pVertexSurface->idAssociatedContext = pContext->id;
7070	LogFlow(("vmsvga3dDrawPrimitivesProcessVertexDecls: sid=%x idAssociatedContext %#x -> %#x\n", pVertexSurface->id, pVertexSurface->idAssociatedContext, pContext->id));
7071	#endif
7072
7073	/* Setup the vertex declarations. */
7074	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
7075	{
7076	GLint size;
7077	GLenum type;
7078	GLboolean normalized;
7079	GLuint index = iVertexDeclBase + iVertex;
7080
7081	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));
7082
7083	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
7084	AssertRCReturn(rc, rc);
7085
7086	if (pContext->state.shidVertex != SVGA_ID_INVALID)
7087	{
7088	/* Use numbered vertex arrays when shaders are active. */
7089	pState->ext.glEnableVertexAttribArray(index);
7090	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7091	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
7092	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
7093	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7094	/* case SVGA3D_DECLUSAGE_COLOR: @todo color component order not identical!! test GL_BGRA!! */
7095	}
7096	else
7097	{
7098	/* Use the predefined selection of vertex streams for the fixed pipeline. */
7099	switch (pVertexDecl[iVertex].identity.usage)
7100	{
7101	case SVGA3D_DECLUSAGE_POSITION:
7102	glEnableClientState(GL_VERTEX_ARRAY);
7103	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7104	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
7105	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
7106	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7107	break;
7108	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
7109	AssertFailed();
7110	break;
7111	case SVGA3D_DECLUSAGE_BLENDINDICES:
7112	AssertFailed();
7113	break;
7114	case SVGA3D_DECLUSAGE_NORMAL:
7115	glEnableClientState(GL_NORMAL_ARRAY);
7116	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7117	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
7118	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
7119	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7120	break;
7121	case SVGA3D_DECLUSAGE_PSIZE:
7122	AssertFailed();
7123	break;
7124	case SVGA3D_DECLUSAGE_TEXCOORD:
7125	/* Specify the affected texture unit. */
7126	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
7127	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
7128	#else
7129	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
7130	#endif
7131	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
7132	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7133	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
7134	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
7135	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7136	break;
7137	case SVGA3D_DECLUSAGE_TANGENT:
7138	AssertFailed();
7139	break;
7140	case SVGA3D_DECLUSAGE_BINORMAL:
7141	AssertFailed();
7142	break;
7143	case SVGA3D_DECLUSAGE_TESSFACTOR:
7144	AssertFailed();
7145	break;
7146	case SVGA3D_DECLUSAGE_POSITIONT:
7147	AssertFailed(); /* see position_transformed in Wine */
7148	break;
7149	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
7150	glEnableClientState(GL_COLOR_ARRAY);
7151	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7152	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
7153	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
7154	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7155	break;
7156	case SVGA3D_DECLUSAGE_FOG:
7157	glEnableClientState(GL_FOG_COORD_ARRAY);
7158	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7159	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
7160	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
7161	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7162	break;
7163	case SVGA3D_DECLUSAGE_DEPTH:
7164	AssertFailed();
7165	break;
7166	case SVGA3D_DECLUSAGE_SAMPLE:
7167	AssertFailed();
7168	break;
7169	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
7170	}
7171	}
7172
7173	#ifdef LOG_ENABLED
7174	if (pVertexDecl[iVertex].array.stride == 0)
7175	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
7176	#endif
7177	}
7178
7179	return VINF_SUCCESS;
7180	}
7181
7182	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
7183	{
7184	/* Setup the vertex declarations. */
7185	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
7186	{
7187	if (pContext->state.shidVertex != SVGA_ID_INVALID)
7188	{
7189	/* Use numbered vertex arrays when shaders are active. */
7190	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
7191	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7192	}
7193	else
7194	{
7195	/* Use the predefined selection of vertex streams for the fixed pipeline. */
7196	switch (pVertexDecl[iVertex].identity.usage)
7197	{
7198	case SVGA3D_DECLUSAGE_POSITION:
7199	glDisableClientState(GL_VERTEX_ARRAY);
7200	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7201	break;
7202	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
7203	break;
7204	case SVGA3D_DECLUSAGE_BLENDINDICES:
7205	break;
7206	case SVGA3D_DECLUSAGE_NORMAL:
7207	glDisableClientState(GL_NORMAL_ARRAY);
7208	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7209	break;
7210	case SVGA3D_DECLUSAGE_PSIZE:
7211	break;
7212	case SVGA3D_DECLUSAGE_TEXCOORD:
7213	/* Specify the affected texture unit. */
7214	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
7215	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
7216	#else
7217	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
7218	#endif
7219	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
7220	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7221	break;
7222	case SVGA3D_DECLUSAGE_TANGENT:
7223	break;
7224	case SVGA3D_DECLUSAGE_BINORMAL:
7225	break;
7226	case SVGA3D_DECLUSAGE_TESSFACTOR:
7227	break;
7228	case SVGA3D_DECLUSAGE_POSITIONT:
7229	break;
7230	case SVGA3D_DECLUSAGE_COLOR: /* @todo color component order not identical!! */
7231	glDisableClientState(GL_COLOR_ARRAY);
7232	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7233	break;
7234	case SVGA3D_DECLUSAGE_FOG:
7235	glDisableClientState(GL_FOG_COORD_ARRAY);
7236	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7237	break;
7238	case SVGA3D_DECLUSAGE_DEPTH:
7239	break;
7240	case SVGA3D_DECLUSAGE_SAMPLE:
7241	break;
7242	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
7243	}
7244	}
7245	}
7246	/* Unbind the vertex buffer after usage. */
7247	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
7248	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7249	return VINF_SUCCESS;
7250	}
7251
7252	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl pVertexDecl, uint32_t numRanges, SVGA3dPrimitiveRange pRange, uint32_t cVertexDivisor, SVGA3dVertexDivisor *pVertexDivisor)
7253	{
7254	PVMSVGA3DCONTEXT pContext;
7255	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
7256	AssertReturn(pState, VERR_INTERNAL_ERROR);
7257	int rc = VERR_NOT_IMPLEMENTED;
7258	uint32_t iCurrentVertex;
7259
7260	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
7261
7262	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
7263	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
7264	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
7265	/* @todo */
7266	Assert(!cVertexDivisor);
7267
7268	if ( cid >= pState->cContexts
7269	\|\| pState->papContexts[cid]->id != cid)
7270	{
7271	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
7272	return VERR_INVALID_PARAMETER;
7273	}
7274	pContext = pState->papContexts[cid];
7275	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7276
7277	/* Flush any shader changes. */
7278	if (pContext->pShaderContext)
7279	{
7280	uint32_t rtHeight = 0;
7281
7282	if (pContext->sidRenderTarget != SVGA_ID_INVALID)
7283	{
7284	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->sidRenderTarget];
7285	rtHeight = pRenderTarget->pMipmapLevels[0].size.height;
7286	}
7287
7288	ShaderUpdateState(pContext->pShaderContext, rtHeight);
7289	}
7290
7291	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
7292	iCurrentVertex = 0;
7293	while (iCurrentVertex < numVertexDecls)
7294	{
7295	uint32_t sidVertex = SVGA_ID_INVALID;
7296	uint32_t iVertex;
7297
7298	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
7299	{
7300	if ( sidVertex != SVGA_ID_INVALID
7301	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
7302	)
7303	break;
7304	sidVertex = pVertexDecl[iVertex].array.surfaceId;
7305	}
7306
7307	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pState, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
7308	AssertRCReturn(rc, rc);
7309
7310	iCurrentVertex = iVertex;
7311	}
7312
7313	/* Now draw the primitives. */
7314	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
7315	{
7316	GLenum modeDraw;
7317	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
7318	PVMSVGA3DSURFACE pIndexSurface = NULL;
7319	unsigned cVertices;
7320
7321	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
7322	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
7323	if (RT_FAILURE(rc))
7324	{
7325	AssertRC(rc);
7326	goto internal_error;
7327	}
7328
7329	if (sidIndex != SVGA3D_INVALID_ID)
7330	{
7331	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
7332
7333	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
7334	\|\| sidIndex >= pState->cSurfaces
7335	\|\| pState->papSurfaces[sidIndex]->id != sidIndex)
7336	{
7337	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
7338	Assert(sidIndex < pState->cSurfaces && pState->papSurfaces[sidIndex]->id == sidIndex);
7339	rc = VERR_INVALID_PARAMETER;
7340	goto internal_error;
7341	}
7342	pIndexSurface = pState->papSurfaces[sidIndex];
7343	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
7344
7345	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
7346	{
7347	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
7348	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
7349	pContext = &pState->SharedCtx;
7350	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7351	#endif
7352
7353	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
7354	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7355
7356	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
7357	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7358
7359	Assert(pIndexSurface->fDirty);
7360
7361	/* @todo rethink usage dynamic/static */
7362	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
7363	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7364
7365	pIndexSurface->pMipmapLevels[0].fDirty = false;
7366	pIndexSurface->fDirty = false;
7367
7368	pIndexSurface->flags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
7369
7370	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
7371	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
7372	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7373
7374	pContext = pState->papContexts[cid];
7375	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7376	#endif
7377	}
7378	#ifndef VMSVGA3D_OGL_WITH_SHARED_CTX
7379	else
7380	#endif
7381	{
7382	Assert(pIndexSurface->fDirty == false);
7383
7384	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
7385	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7386	}
7387	#ifndef VMSVGA3D_OGL_WITH_SHARED_CTX
7388	LogFlow(("vmsvga3dDrawPrimitives: sid=%x idAssociatedContext %#x -> %#x\n", pIndexSurface->id, pIndexSurface->idAssociatedContext, pContext->id));
7389	pIndexSurface->idAssociatedContext = pContext->id;
7390	#endif
7391	}
7392
7393	if (!pIndexSurface)
7394	{
7395	/* Render without an index buffer */
7396	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
7397	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
7398	}
7399	else
7400	{
7401	Assert(pRange[iPrimitive].indexBias >= 0); /* @todo */
7402	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
7403
7404	/* Render with an index buffer */
7405	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));
7406	if (pRange[iPrimitive].indexBias == 0)
7407	glDrawElements(modeDraw,
7408	cVertices,
7409	(pRange[iPrimitive].indexWidth == sizeof(uint16_t)) ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
7410	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
7411	else
7412	pState->ext.glDrawElementsBaseVertex(modeDraw,
7413	cVertices,
7414	(pRange[iPrimitive].indexWidth == sizeof(uint16_t)) ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
7415	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
7416	pRange[iPrimitive].indexBias); /* basevertex */
7417
7418	/* Unbind the index buffer after usage. */
7419	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
7420	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7421	}
7422	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7423	}
7424
7425	internal_error:
7426
7427	/* Deactivate the vertex declarations. */
7428	iCurrentVertex = 0;
7429	while (iCurrentVertex < numVertexDecls)
7430	{
7431	uint32_t sidVertex = SVGA_ID_INVALID;
7432	uint32_t iVertex;
7433
7434	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
7435	{
7436	if ( sidVertex != SVGA_ID_INVALID
7437	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
7438	)
7439	break;
7440	sidVertex = pVertexDecl[iVertex].array.surfaceId;
7441	}
7442
7443	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pState, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
7444	AssertRCReturn(rc, rc);
7445
7446	iCurrentVertex = iVertex;
7447	}
7448	#ifdef DEBUG
7449	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTexture); i++)
7450	{
7451	if (pContext->aSidActiveTexture[i] != SVGA3D_INVALID_ID)
7452	{
7453	GLint activeTexture = 0;
7454	GLint activeTextureUnit = 0;
7455
7456	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
7457	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
7458	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
7459	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
7460
7461	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
7462	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
7463	pState->ext.glActiveTexture(activeTextureUnit);
7464	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
7465
7466	# if 0 /* Aren't we checking whether 'activeTexture' on texture unit 'i' matches what we expected? This works if only one unit is active, but if both are it _will_ fail for one of them. */
7467	if (pContext->aSidActiveTexture[activeTextureUnit - GL_TEXTURE0] != SVGA3D_INVALID_ID)
7468	{
7469	PVMSVGA3DSURFACE pTexture;
7470	pTexture = pState->papSurfaces[pContext->aSidActiveTexture[activeTextureUnit - GL_TEXTURE0]];
7471
7472	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture, ("%x vs %x unit %d - %d\n", pTexture->oglId.texture, activeTexture, i, activeTextureUnit - GL_TEXTURE0));
7473	}
7474	# else
7475	PVMSVGA3DSURFACE pTexture = pState->papSurfaces[pContext->aSidActiveTexture[i]];
7476	AssertMsg(pTexture->id == pContext->aSidActiveTexture[i], ("%x vs %x\n", pTexture->id == pContext->aSidActiveTexture[i]));
7477	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
7478	("%x vs %x unit %d (active unit %d) sid=%x\n", pTexture->oglId.texture, activeTexture, i,
7479	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTexture[i]));
7480	# endif
7481	}
7482	}
7483	#endif
7484
7485	#ifdef DEBUG_GFX_WINDOW
7486	if (pContext->aSidActiveTexture[0])
7487	{
7488	SVGA3dCopyRect rect;
7489
7490	rect.srcx = rect.srcy = rect.x = rect.y = 0;
7491	rect.w = 800;
7492	rect.h = 600;
7493	vmsvga3dCommandPresent(pThis, pContext->sidRenderTarget, 0, NULL);
7494	}
7495	#endif
7496	return rc;
7497	}
7498
7499
7500	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
7501	{
7502	PVMSVGA3DCONTEXT pContext;
7503	PVMSVGA3DSHADER pShader;
7504	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
7505	AssertReturn(pState, VERR_NO_MEMORY);
7506	int rc;
7507
7508	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
7509	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
7510
7511	if ( cid >= pState->cContexts
7512	\|\| pState->papContexts[cid]->id != cid)
7513	{
7514	Log(("vmsvga3dShaderDefine invalid context id!\n"));
7515	return VERR_INVALID_PARAMETER;
7516	}
7517	pContext = pState->papContexts[cid];
7518	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7519
7520	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
7521	if (type == SVGA3D_SHADERTYPE_VS)
7522	{
7523	if (shid >= pContext->cVertexShaders)
7524	{
7525	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
7526	AssertReturn(pvNew, VERR_NO_MEMORY);
7527	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
7528	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
7529	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
7530	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
7531	pContext->cVertexShaders = shid + 1;
7532	}
7533	/* If one already exists with this id, then destroy it now. */
7534	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
7535	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
7536
7537	pShader = &pContext->paVertexShader[shid];
7538	}
7539	else
7540	{
7541	Assert(type == SVGA3D_SHADERTYPE_PS);
7542	if (shid >= pContext->cPixelShaders)
7543	{
7544	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
7545	AssertReturn(pvNew, VERR_NO_MEMORY);
7546	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
7547	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
7548	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
7549	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
7550	pContext->cPixelShaders = shid + 1;
7551	}
7552	/* If one already exists with this id, then destroy it now. */
7553	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
7554	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
7555
7556	pShader = &pContext->paPixelShader[shid];
7557	}
7558
7559	memset(pShader, 0, sizeof(*pShader));
7560	pShader->id = shid;
7561	pShader->cid = cid;
7562	pShader->type = type;
7563	pShader->cbData = cbData;
7564	pShader->pShaderProgram = RTMemAllocZ(cbData);
7565	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
7566	memcpy(pShader->pShaderProgram, pShaderData, cbData);
7567
7568	#ifdef DUMP_SHADER_DISASSEMBLY
7569	LPD3DXBUFFER pDisassembly;
7570	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
7571	if (hr == D3D_OK)
7572	{
7573	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
7574	pDisassembly->Release();
7575	}
7576	#endif
7577
7578	switch (type)
7579	{
7580	case SVGA3D_SHADERTYPE_VS:
7581	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
7582	break;
7583
7584	case SVGA3D_SHADERTYPE_PS:
7585	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
7586	break;
7587
7588	default:
7589	AssertFailedReturn(VERR_INVALID_PARAMETER);
7590	}
7591	if (rc != VINF_SUCCESS)
7592	{
7593	RTMemFree(pShader->pShaderProgram);
7594	memset(pShader, 0, sizeof(*pShader));
7595	pShader->id = SVGA3D_INVALID_ID;
7596	}
7597
7598	return rc;
7599	}
7600
7601	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
7602	{
7603	PVMSVGA3DCONTEXT pContext;
7604	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
7605	AssertReturn(pState, VERR_NO_MEMORY);
7606	PVMSVGA3DSHADER pShader = NULL;
7607	int rc;
7608
7609	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
7610
7611	if ( cid >= pState->cContexts
7612	\|\| pState->papContexts[cid]->id != cid)
7613	{
7614	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
7615	return VERR_INVALID_PARAMETER;
7616	}
7617	pContext = pState->papContexts[cid];
7618	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7619
7620	if (type == SVGA3D_SHADERTYPE_VS)
7621	{
7622	if ( shid < pContext->cVertexShaders
7623	&& pContext->paVertexShader[shid].id == shid)
7624	{
7625	pShader = &pContext->paVertexShader[shid];
7626	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
7627	AssertRC(rc);
7628	}
7629	}
7630	else
7631	{
7632	Assert(type == SVGA3D_SHADERTYPE_PS);
7633	if ( shid < pContext->cPixelShaders
7634	&& pContext->paPixelShader[shid].id == shid)
7635	{
7636	pShader = &pContext->paPixelShader[shid];
7637	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
7638	AssertRC(rc);
7639	}
7640	}
7641
7642	if (pShader)
7643	{
7644	if (pShader->pShaderProgram)
7645	RTMemFree(pShader->pShaderProgram);
7646	memset(pShader, 0, sizeof(*pShader));
7647	pShader->id = SVGA3D_INVALID_ID;
7648	}
7649	else
7650	AssertFailedReturn(VERR_INVALID_PARAMETER);
7651
7652	return VINF_SUCCESS;
7653	}
7654
7655	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
7656	{
7657	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
7658	AssertReturn(pState, VERR_NO_MEMORY);
7659	int rc;
7660
7661	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
7662
7663	if ( !pContext
7664	&& cid < pState->cContexts
7665	&& pState->papContexts[cid]->id == cid)
7666	pContext = pState->papContexts[cid];
7667	else
7668	{
7669	Log(("vmsvga3dShaderSet invalid context id!\n"));
7670	return VERR_INVALID_PARAMETER;
7671	}
7672	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7673
7674	if (type == SVGA3D_SHADERTYPE_VS)
7675	{
7676	/* Save for vm state save/restore. */
7677	pContext->state.shidVertex = shid;
7678	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
7679
7680	if ( shid < pContext->cVertexShaders
7681	&& pContext->paVertexShader[shid].id == shid)
7682	{
7683	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
7684	Assert(type == pShader->type);
7685
7686	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
7687	AssertRCReturn(rc, rc);
7688	}
7689	else
7690	if (shid == SVGA_ID_INVALID)
7691	{
7692	/* Unselect shader. */
7693	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
7694	AssertRCReturn(rc, rc);
7695	}
7696	else
7697	AssertFailedReturn(VERR_INVALID_PARAMETER);
7698	}
7699	else
7700	{
7701	/* Save for vm state save/restore. */
7702	pContext->state.shidPixel = shid;
7703	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
7704
7705	Assert(type == SVGA3D_SHADERTYPE_PS);
7706	if ( shid < pContext->cPixelShaders
7707	&& pContext->paPixelShader[shid].id == shid)
7708	{
7709	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
7710	Assert(type == pShader->type);
7711
7712	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
7713	AssertRCReturn(rc, rc);
7714	}
7715	else
7716	if (shid == SVGA_ID_INVALID)
7717	{
7718	/* Unselect shader. */
7719	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
7720	AssertRCReturn(rc, rc);
7721	}
7722	else
7723	AssertFailedReturn(VERR_INVALID_PARAMETER);
7724	}
7725
7726	return VINF_SUCCESS;
7727	}
7728
7729	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
7730	{
7731	PVMSVGA3DCONTEXT pContext;
7732	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
7733	AssertReturn(pState, VERR_NO_MEMORY);
7734	int rc;
7735
7736	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
7737
7738	if ( cid >= pState->cContexts
7739	\|\| pState->papContexts[cid]->id != cid)
7740	{
7741	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
7742	return VERR_INVALID_PARAMETER;
7743	}
7744	pContext = pState->papContexts[cid];
7745	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7746
7747	for (uint32_t i = 0; i < cRegisters; i++)
7748	{
7749	#ifdef LOG_ENABLED
7750	switch (ctype)
7751	{
7752	case SVGA3D_CONST_TYPE_FLOAT:
7753	{
7754	float pValuesF = (float )pValues;
7755	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)));
7756	break;
7757	}
7758
7759	case SVGA3D_CONST_TYPE_INT:
7760	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
7761	break;
7762
7763	case SVGA3D_CONST_TYPE_BOOL:
7764	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
7765	break;
7766	}
7767	#endif
7768	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
7769	}
7770
7771	switch (type)
7772	{
7773	case SVGA3D_SHADERTYPE_VS:
7774	switch (ctype)
7775	{
7776	case SVGA3D_CONST_TYPE_FLOAT:
7777	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
7778	break;
7779
7780	case SVGA3D_CONST_TYPE_INT:
7781	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
7782	break;
7783
7784	case SVGA3D_CONST_TYPE_BOOL:
7785	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
7786	break;
7787
7788	default:
7789	AssertFailedReturn(VERR_INVALID_PARAMETER);
7790	}
7791	AssertRCReturn(rc, rc);
7792	break;
7793
7794	case SVGA3D_SHADERTYPE_PS:
7795	switch (ctype)
7796	{
7797	case SVGA3D_CONST_TYPE_FLOAT:
7798	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
7799	break;
7800
7801	case SVGA3D_CONST_TYPE_INT:
7802	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
7803	break;
7804
7805	case SVGA3D_CONST_TYPE_BOOL:
7806	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
7807	break;
7808
7809	default:
7810	AssertFailedReturn(VERR_INVALID_PARAMETER);
7811	}
7812	AssertRCReturn(rc, rc);
7813	break;
7814
7815	default:
7816	AssertFailedReturn(VERR_INVALID_PARAMETER);
7817	}
7818
7819	return VINF_SUCCESS;
7820	}
7821
7822
7823	int vmsvga3dQueryBegin(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type)
7824	{
7825	AssertFailed();
7826	return VERR_NOT_IMPLEMENTED;
7827	}
7828
7829	int vmsvga3dQueryEnd(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
7830	{
7831	AssertFailed();
7832	return VERR_NOT_IMPLEMENTED;
7833	}
7834
7835	int vmsvga3dQueryWait(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
7836	{
7837	AssertFailed();
7838	return VERR_NOT_IMPLEMENTED;
7839	}
7840

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 56017

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