DevVGA-SVGA3d-ogl.cpp@ 57135

Last change on this file since 57135 was 57135, checked in by vboxsync, 9 years ago
vmsvga3d/darwin/ogl: Resize the shared context, save and restore the shared context. Don't try too hard to do the NSOpenGLContext::setView thing if it doesn't want to work, it's pretty noisy on 10.8.5/nvidia. Do the vmsvga3dPowerOn on EMT, not the FIFO when restoring state (darwin only atm).
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 308.7 KB

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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 57135 2015-07-30 19:41:09Z 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
875	/**
876	* SSM descriptor table for the VMSVGA3DSTATE structure.
877	*/
878	static SSMFIELD const g_aVMSVGA3DSTATEFields[] =
879	{
880	#ifdef RT_OS_WINDOWS
881	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, pWindowThread),
882	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, idWindowThread),
883	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, hInstance),
884	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, WndRequestSem),
885	#elif defined(RT_OS_LINUX)
886	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, display),
887	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, pWindowThread),
888	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, bTerminate),
889	#endif
890	SSMFIELD_ENTRY( VMSVGA3DSTATE, fGLVersion),
891	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, idActiveContext),
892
893	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, ext),
894	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, caps),
895
896	SSMFIELD_ENTRY( VMSVGA3DSTATE, cContexts),
897	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, papContexts),
898	SSMFIELD_ENTRY( VMSVGA3DSTATE, cSurfaces),
899	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, papSurfaces),
900	SSMFIELD_ENTRY_TERM()
901	};
902
903
904	/** Save and setup everything. */
905	#define VMSVGA3D_PARANOID_TEXTURE_PACKING
906
907	/**
908	* Saved texture packing parameters (shared by both pack and unpack).
909	*/
910	typedef struct VMSVGAPACKPARAMS
911	{
912	GLint iAlignment;
913	GLint cxRow;
914	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
915	GLint cyImage;
916	GLboolean fSwapBytes;
917	GLboolean fLsbFirst;
918	GLint cSkipRows;
919	GLint cSkipPixels;
920	GLint cSkipImages;
921	#endif
922	} VMSVGAPACKPARAMS;
923	/** Pointer to saved texture packing parameters. */
924	typedef VMSVGAPACKPARAMS *PVMSVGAPACKPARAMS;
925	/** Pointer to const saved texture packing parameters. */
926	typedef VMSVGAPACKPARAMS const *PCVMSVGAPACKPARAMS;
927
928
929	/*******************************************************************************
930	* Global Variables *
931	*******************************************************************************/
932	/* Define the default light parameters as specified by MSDN. */
933	/* @todo move out; fetched from Wine */
934	const SVGA3dLightData vmsvga3d_default_light =
935	{
936	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
937	false, /* inWorldSpace */
938	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
939	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
940	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
941	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
942	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
943	0.0f, /* range */
944	0.0f, /* falloff */
945	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
946	0.0f, /* theta */
947	0.0f /* phi */
948	};
949
950
951	/*******************************************************************************
952	* Internal Functions *
953	*******************************************************************************/
954	static int vmsvga3dCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext, PVMSVGA3DSURFACE pSurface);
955	static int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags);
956	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid);
957	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
958	static void vmsvga3dSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
959	PVMSVGAPACKPARAMS pSave);
960	static void vmsvga3dRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
961	PCVMSVGAPACKPARAMS pSave);
962
963	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
964	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
965	#ifdef RT_OS_DARWIN
966	extern "C" int ExplicitlyLoadVBoxSVGA3DObjC(bool fResolveAllImports, PRTERRINFO pErrInfo);
967	#endif
968
969
970	/**
971	* Checks if the given OpenGL extension is supported.
972	*
973	* @returns true if supported, false if not.
974	* @param pState The VMSVGA3d state.
975	* @param fActualGLVersion The actual OpenGL version we're working against.
976	* @param fMinGLVersion The OpenGL version that introduced this feature
977	* into the core.
978	* @param pszWantedExtension The name of the OpenGL extension we want padded
979	* with one space at each end.
980	* @remarks Init time only.
981	*/
982	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float fMinGLVersion, const char *pszWantedExtension)
983	{
984	/* check padding. */
985	Assert(pszWantedExtension[0] == ' ');
986	Assert(pszWantedExtension[1] != ' ');
987	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
988
989	/* Look it up. */
990	bool fRet = false;
991	if (strstr(pState->pszExtensions, pszWantedExtension))
992	fRet = true;
993
994	/* Temporarily. Later start if (fMinGLVersion != 0.0 && fActualGLVersion >= fMinGLVersion) return true; */
995	#ifdef RT_OS_DARWIN
996	AssertMsg( fMinGLVersion == 0.0
997	\|\| fRet == (pState->fGLVersion >= fMinGLVersion)
998	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
999	("%s actual:%d min:%d fRet=%d\n",
1000	pszWantedExtension, (int)(pState->fGLVersion * 10), (int)(fMinGLVersion * 10), fRet));
1001	#else
1002	AssertMsg(fMinGLVersion == 0.0 \|\| fRet == (pState->fGLVersion >= fMinGLVersion),
1003	("%s actual:%d min:%d fRet=%d\n",
1004	pszWantedExtension, (int)(pState->fGLVersion * 10), (int)(fMinGLVersion * 10), fRet));
1005	#endif
1006	return fRet;
1007	}
1008
1009
1010	/**
1011	* Outputs GL_EXTENSIONS list to the release log.
1012	*/
1013	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
1014	{
1015	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
1016	bool fBuffered = RTLogRelSetBuffering(true);
1017
1018	/*
1019	* Determin the column widths first.
1020	*/
1021	size_t acchWidths[4] = { 1, 1, 1, 1 };
1022	uint32_t i;
1023	const char *psz = pszExtensions;
1024	for (i = 0; ; i++)
1025	{
1026	while (*psz == ' ')
1027	psz++;
1028	if (!*psz)
1029	break;
1030
1031	const char *pszEnd = strchr(psz, ' ');
1032	AssertBreak(pszEnd);
1033	size_t cch = pszEnd - psz;
1034
1035	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
1036	if (acchWidths[iColumn] < cch)
1037	acchWidths[iColumn] = cch;
1038
1039	psz = pszEnd;
1040	}
1041
1042	/*
1043	* Output it.
1044	*/
1045	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
1046	psz = pszExtensions;
1047	for (i = 0; ; i++)
1048	{
1049	while (*psz == ' ')
1050	psz++;
1051	if (!*psz)
1052	break;
1053
1054	const char *pszEnd = strchr(psz, ' ');
1055	AssertBreak(pszEnd);
1056	size_t cch = pszEnd - psz;
1057
1058	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
1059	if (iColumn == 0)
1060	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
1061	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
1062	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
1063	else
1064	LogRel((" %.*s", cch, psz));
1065
1066	psz = pszEnd;
1067	}
1068
1069	RTLogRelSetBuffering(fBuffered);
1070	LogRel(("\n"));
1071	}
1072
1073	/**
1074	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
1075	* @a ppszExtensions.
1076	*
1077	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
1078	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
1079	* @param fGLProfileVersion The OpenGL profile version.
1080	*/
1081	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
1082	{
1083	int rc;
1084	*ppszExtensions = NULL;
1085
1086	/*
1087	* Try the old glGetString interface first.
1088	*/
1089	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
1090	if (pszExtensions)
1091	{
1092	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
1093	AssertLogRelRCReturn(rc, rc);
1094	}
1095	else
1096	{
1097	/*
1098	* The new interface where each extension string is retrieved separately.
1099	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
1100	* the above GL_EXTENSIONS error lingers on darwin. sucks.
1101	*/
1102	#ifndef GL_NUM_EXTENSIONS
1103	# define GL_NUM_EXTENSIONS 0x821D
1104	#endif
1105	GLint cExtensions = 1024;
1106	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
1107	Assert(cExtensions != 1024);
1108
1109	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
1110	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
1111
1112	rc = RTStrAAppend(ppszExtensions, " ");
1113	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
1114	{
1115	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
1116	if (pszExt)
1117	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
1118	}
1119	AssertRCReturn(rc, rc);
1120	}
1121
1122	#if 1
1123	/*
1124	* Add extensions promoted into the core OpenGL profile.
1125	*/
1126	static const struct
1127	{
1128	float fGLVersion;
1129	const char *pszzExtensions;
1130	} s_aPromotedExtensions[] =
1131	{
1132	{
1133	1.1f,
1134	" GL_EXT_vertex_array \0"
1135	" GL_EXT_polygon_offset \0"
1136	" GL_EXT_blend_logic_op \0"
1137	" GL_EXT_texture \0"
1138	" GL_EXT_copy_texture \0"
1139	" GL_EXT_subtexture \0"
1140	" GL_EXT_texture_object \0"
1141	" GL_ARB_framebuffer_object \0"
1142	" GL_ARB_map_buffer_range \0"
1143	" GL_ARB_vertex_array_object \0"
1144	"\0"
1145	},
1146	{
1147	1.2f,
1148	" EXT_texture3D \0"
1149	" EXT_bgra \0"
1150	" EXT_packed_pixels \0"
1151	" EXT_rescale_normal \0"
1152	" EXT_separate_specular_color \0"
1153	" SGIS_texture_edge_clamp \0"
1154	" SGIS_texture_lod \0"
1155	" EXT_draw_range_elements \0"
1156	"\0"
1157	},
1158	{
1159	1.3f,
1160	" GL_ARB_texture_compression \0"
1161	" GL_ARB_texture_cube_map \0"
1162	" GL_ARB_multisample \0"
1163	" GL_ARB_multitexture \0"
1164	" GL_ARB_texture_env_add \0"
1165	" GL_ARB_texture_env_combine \0"
1166	" GL_ARB_texture_env_dot3 \0"
1167	" GL_ARB_texture_border_clamp \0"
1168	" GL_ARB_transpose_matrix \0"
1169	"\0"
1170	},
1171	{
1172	1.5f,
1173	" GL_SGIS_generate_mipmap \0"
1174	/" GL_NV_blend_equare \0"/
1175	" GL_ARB_depth_texture \0"
1176	" GL_ARB_shadow \0"
1177	" GL_EXT_fog_coord \0"
1178	" GL_EXT_multi_draw_arrays \0"
1179	" GL_ARB_point_parameters \0"
1180	" GL_EXT_secondary_color \0"
1181	" GL_EXT_blend_func_separate \0"
1182	" GL_EXT_stencil_wrap \0"
1183	" GL_ARB_texture_env_crossbar \0"
1184	" GL_EXT_texture_lod_bias \0"
1185	" GL_ARB_texture_mirrored_repeat \0"
1186	" GL_ARB_window_pos \0"
1187	"\0"
1188	},
1189	{
1190	1.6f,
1191	" GL_ARB_vertex_buffer_object \0"
1192	" GL_ARB_occlusion_query \0"
1193	" GL_EXT_shadow_funcs \0"
1194	},
1195	{
1196	2.0f,
1197	" GL_ARB_shader_objects \0" /??/
1198	" GL_ARB_vertex_shader \0" /??/
1199	" GL_ARB_fragment_shader \0" /??/
1200	" GL_ARB_shading_language_100 \0" /??/
1201	" GL_ARB_draw_buffers \0"
1202	" GL_ARB_texture_non_power_of_two \0"
1203	" GL_ARB_point_sprite \0"
1204	" GL_ATI_separate_stencil \0"
1205	" GL_EXT_stencil_two_side \0"
1206	"\0"
1207	},
1208	{
1209	2.1f,
1210	" GL_ARB_pixel_buffer_object \0"
1211	" GL_EXT_texture_sRGB \0"
1212	"\0"
1213	},
1214	{
1215	3.0f,
1216	" GL_ARB_framebuffer_object \0"
1217	" GL_ARB_map_buffer_range \0"
1218	" GL_ARB_vertex_array_object \0"
1219	"\0"
1220	},
1221	{
1222	3.1f,
1223	" GL_ARB_copy_buffer \0"
1224	" GL_ARB_uniform_buffer_object \0"
1225	"\0"
1226	},
1227	{
1228	3.2f,
1229	" GL_ARB_vertex_array_bgra \0"
1230	" GL_ARB_draw_elements_base_vertex \0"
1231	" GL_ARB_fragment_coord_conventions \0"
1232	" GL_ARB_provoking_vertex \0"
1233	" GL_ARB_seamless_cube_map \0"
1234	" GL_ARB_texture_multisample \0"
1235	" GL_ARB_depth_clamp \0"
1236	" GL_ARB_sync \0"
1237	" GL_ARB_geometry_shader4 \0" /??/
1238	"\0"
1239	},
1240	{
1241	3.3f,
1242	" GL_ARB_blend_func_extended \0"
1243	" GL_ARB_sampler_objects \0"
1244	" GL_ARB_explicit_attrib_location \0"
1245	" GL_ARB_occlusion_query2 \0"
1246	" GL_ARB_shader_bit_encoding \0"
1247	" GL_ARB_texture_rgb10_a2ui \0"
1248	" GL_ARB_texture_swizzle \0"
1249	" GL_ARB_timer_query \0"
1250	" GL_ARB_vertex_type_2_10_10_10_rev \0"
1251	"\0"
1252	},
1253	{
1254	4.0f,
1255	" GL_ARB_texture_query_lod \0"
1256	" GL_ARB_draw_indirect \0"
1257	" GL_ARB_gpu_shader5 \0"
1258	" GL_ARB_gpu_shader_fp64 \0"
1259	" GL_ARB_shader_subroutine \0"
1260	" GL_ARB_tessellation_shader \0"
1261	" GL_ARB_texture_buffer_object_rgb32 \0"
1262	" GL_ARB_texture_cube_map_array \0"
1263	" GL_ARB_texture_gather \0"
1264	" GL_ARB_transform_feedback2 \0"
1265	" GL_ARB_transform_feedback3 \0"
1266	"\0"
1267	},
1268	{
1269	4.1f,
1270	" GL_ARB_ES2_compatibility \0"
1271	" GL_ARB_get_program_binary \0"
1272	" GL_ARB_separate_shader_objects \0"
1273	" GL_ARB_shader_precision \0"
1274	" GL_ARB_vertex_attrib_64bit \0"
1275	" GL_ARB_viewport_array \0"
1276	"\0"
1277	}
1278	};
1279
1280	uint32_t cPromoted = 0;
1281	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
1282	{
1283	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
1284	while (*pszExt)
1285	{
1286	size_t cchExt = strlen(pszExt);
1287	Assert(cchExt > 3);
1288	Assert(pszExt[0] == ' ');
1289	Assert(pszExt[1] != ' ');
1290	Assert(pszExt[cchExt - 2] != ' ');
1291	Assert(pszExt[cchExt - 1] == ' ');
1292
1293	if (strstr(*ppszExtensions, pszExt) == NULL)
1294	{
1295	if (cPromoted++ == 0)
1296	{
1297	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
1298	AssertRCReturn(rc, rc);
1299	}
1300
1301	rc = RTStrAAppend(ppszExtensions, pszExt);
1302	AssertRCReturn(rc, rc);
1303	}
1304
1305	pszExt = strchr(pszExt, '\0') + 1;
1306	}
1307	}
1308	#endif
1309
1310	return VINF_SUCCESS;
1311	}
1312
1313	/**
1314	* @interface_method_impl{VBOXVMSVGASHADERIF, pfnSwitchInitProfile}
1315	*/
1316	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
1317	{
1318	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1319	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
1320	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
1321	#else
1322	NOREF(pThis);
1323	NOREF(fOtherProfile);
1324	#endif
1325	}
1326
1327
1328	/**
1329	* @interface_method_impl{VBOXVMSVGASHADERIF, pfnGetNextExtension}
1330	*/
1331	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
1332	char *pszBuf, size_t cbBuf, bool fOtherProfile)
1333	{
1334	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
1335	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
1336	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
1337	while (*pszCur == ' ')
1338	pszCur++;
1339	if (!*pszCur)
1340	return false;
1341
1342	const char *pszEnd = strchr(pszCur, ' ');
1343	AssertReturn(pszEnd, false);
1344	size_t cch = pszEnd - pszCur;
1345	if (cch < cbBuf)
1346	{
1347	memcpy(pszBuf, pszCur, cch);
1348	pszBuf[cch] = '\0';
1349	}
1350	else if (cbBuf > 0)
1351	{
1352	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
1353	pszBuf[cbBuf - 1] = '\0';
1354	}
1355
1356	ppvEnumCtx = (void )pszEnd;
1357	return true;
1358	}
1359
1360
1361	/**
1362	* Initializes the VMSVGA3D state during VGA device construction.
1363	*
1364	* Failure are generally not fatal, 3D support will just be disabled.
1365	*
1366	* @returns VBox status code.
1367	* @param pThis The VGA device state where svga.p3dState will be modified.
1368	*/
1369	int vmsvga3dInit(PVGASTATE pThis)
1370	{
1371	AssertCompile(GL_TRUE == 1);
1372	AssertCompile(GL_FALSE == 0);
1373
1374	/*
1375	* Load and resolve imports from the external shared libraries.
1376	*/
1377	RTERRINFOSTATIC ErrInfo;
1378	int rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
1379	if (RT_FAILURE(rc))
1380	{
1381	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
1382	return rc;
1383	}
1384	#ifdef RT_OS_DARWIN
1385	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
1386	if (RT_FAILURE(rc))
1387	{
1388	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
1389	return rc;
1390	}
1391	#endif
1392
1393	/*
1394	* Allocate the state.
1395	*/
1396	pThis->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
1397	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1398
1399	#ifdef RT_OS_WINDOWS
1400	/* Create event semaphore and async IO thread. */
1401	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1402	rc = RTSemEventCreate(&pState->WndRequestSem);
1403	if (RT_SUCCESS(rc))
1404	{
1405	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
1406	"VMSVGA3DWND");
1407	if (RT_SUCCESS(rc))
1408	return VINF_SUCCESS;
1409
1410	/* bail out. */
1411	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
1412	RTSemEventDestroy(pState->WndRequestSem);
1413	}
1414	else
1415	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
1416	RTMemFree(pThis->svga.p3dState);
1417	pThis->svga.p3dState = NULL;
1418	return rc;
1419	#else
1420	return VINF_SUCCESS;
1421	#endif
1422	}
1423
1424	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
1425	int vmsvga3dPowerOn(PVGASTATE pThis)
1426	{
1427	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1428	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1429	PVMSVGA3DCONTEXT pContext;
1430	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1431	PVMSVGA3DCONTEXT pOtherCtx;
1432	#endif
1433	int rc;
1434
1435	if (pState->fGLVersion != 0.0)
1436	return VINF_SUCCESS; /* already initialized (load state) */
1437
1438	/*
1439	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
1440	*/
1441	rc = vmsvga3dContextDefineOgl(pThis, 1, VMSVGA3D_DEF_CTX_F_INIT);
1442	AssertRCReturn(rc, rc);
1443
1444	pContext = pState->papContexts[1];
1445	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1446
1447	LogRel(("VMSVGA3d: OpenGL version: %s\n"
1448	"VMSVGA3d: OpenGL Vendor: %s\n"
1449	"VMSVGA3d: OpenGL Renderer: %s\n"
1450	"VMSVGA3d: OpenGL shader language version: %s\n",
1451	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
1452	glGetString(GL_SHADING_LANGUAGE_VERSION)));
1453
1454	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
1455	AssertRCReturn(rc, rc);
1456	vmsvga3dLogRelExtensions("", pState->pszExtensions);
1457
1458	pState->fGLVersion = atof((const char *)glGetString(GL_VERSION));
1459
1460
1461	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1462	/*
1463	* Get the extension list for the alternative profile so we can better
1464	* figure out the shader model and stuff.
1465	*/
1466	rc = vmsvga3dContextDefineOgl(pThis, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
1467	AssertLogRelRCReturn(rc, rc);
1468	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
1469
1470	pOtherCtx = pState->papContexts[2];
1471	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
1472
1473	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
1474	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
1475	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
1476	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
1477	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
1478	glGetString(GL_SHADING_LANGUAGE_VERSION)));
1479
1480	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
1481	AssertRCReturn(rc, rc);
1482	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
1483
1484	pState->fOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
1485
1486	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1487	#else
1488	pState->pszOtherExtensions = (char *)"";
1489	pState->fOtherGLVersion = pState->fGLVersion;
1490	#endif
1491
1492
1493	if (vmsvga3dCheckGLExtension(pState, 3.0f, " GL_ARB_framebuffer_object "))
1494	{
1495	pState->ext.glIsRenderbuffer = (PFNGLISRENDERBUFFERPROC)OGLGETPROCADDRESS("glIsRenderbuffer");
1496	pState->ext.glBindRenderbuffer = (PFNGLBINDRENDERBUFFERPROC)OGLGETPROCADDRESS("glBindRenderbuffer");
1497	pState->ext.glDeleteRenderbuffers = (PFNGLDELETERENDERBUFFERSPROC)OGLGETPROCADDRESS("glDeleteRenderbuffers");
1498	pState->ext.glGenRenderbuffers = (PFNGLGENRENDERBUFFERSPROC)OGLGETPROCADDRESS("glGenRenderbuffers");
1499	pState->ext.glRenderbufferStorage = (PFNGLRENDERBUFFERSTORAGEPROC)OGLGETPROCADDRESS("glRenderbufferStorage");
1500	pState->ext.glGetRenderbufferParameteriv = (PFNGLGETRENDERBUFFERPARAMETERIVPROC)OGLGETPROCADDRESS("glGetRenderbufferParameteriv");
1501	pState->ext.glIsFramebuffer = (PFNGLISFRAMEBUFFERPROC)OGLGETPROCADDRESS("glIsFramebuffer");
1502	pState->ext.glBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBindFramebuffer");
1503	pState->ext.glDeleteFramebuffers = (PFNGLDELETEFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteFramebuffers");
1504	pState->ext.glGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glGenFramebuffers");
1505	pState->ext.glCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC)OGLGETPROCADDRESS("glCheckFramebufferStatus");
1506	pState->ext.glFramebufferTexture1D = (PFNGLFRAMEBUFFERTEXTURE1DPROC)OGLGETPROCADDRESS("glFramebufferTexture1D");
1507	pState->ext.glFramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC)OGLGETPROCADDRESS("glFramebufferTexture2D");
1508	pState->ext.glFramebufferTexture3D = (PFNGLFRAMEBUFFERTEXTURE3DPROC)OGLGETPROCADDRESS("glFramebufferTexture3D");
1509	pState->ext.glFramebufferRenderbuffer = (PFNGLFRAMEBUFFERRENDERBUFFERPROC)OGLGETPROCADDRESS("glFramebufferRenderbuffer");
1510	pState->ext.glGetFramebufferAttachmentParameteriv = (PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC)OGLGETPROCADDRESS("glGetFramebufferAttachmentParameteriv");
1511	pState->ext.glGenerateMipmap = (PFNGLGENERATEMIPMAPPROC)OGLGETPROCADDRESS("glGenerateMipmap");
1512	pState->ext.glBlitFramebuffer = (PFNGLBLITFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBlitFramebuffer");
1513	pState->ext.glRenderbufferStorageMultisample = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC)OGLGETPROCADDRESS("glRenderbufferStorageMultisample");
1514	pState->ext.glFramebufferTextureLayer = (PFNGLFRAMEBUFFERTEXTURELAYERPROC)OGLGETPROCADDRESS("glFramebufferTextureLayer");
1515	}
1516	pState->ext.glPointParameterf = (PFNGLPOINTPARAMETERFPROC)OGLGETPROCADDRESS("glPointParameterf");
1517	AssertMsgReturn(pState->ext.glPointParameterf, ("glPointParameterf missing"), VERR_NOT_IMPLEMENTED);
1518	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
1519	pState->ext.glBlendColor = (PFNGLBLENDCOLORPROC)OGLGETPROCADDRESS("glBlendColor");
1520	AssertMsgReturn(pState->ext.glBlendColor, ("glBlendColor missing"), VERR_NOT_IMPLEMENTED);
1521	pState->ext.glBlendEquation = (PFNGLBLENDEQUATIONPROC)OGLGETPROCADDRESS("glBlendEquation");
1522	AssertMsgReturn(pState->ext.glBlendEquation, ("glBlendEquation missing"), VERR_NOT_IMPLEMENTED);
1523	#endif
1524	pState->ext.glBlendEquationSeparate = (PFNGLBLENDEQUATIONSEPARATEPROC)OGLGETPROCADDRESS("glBlendEquationSeparate");
1525	AssertMsgReturn(pState->ext.glBlendEquationSeparate, ("glBlendEquationSeparate missing"), VERR_NOT_IMPLEMENTED);
1526	pState->ext.glBlendFuncSeparate = (PFNGLBLENDFUNCSEPARATEPROC)OGLGETPROCADDRESS("glBlendFuncSeparate");
1527	AssertMsgReturn(pState->ext.glBlendFuncSeparate, ("glBlendFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
1528	pState->ext.glStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC)OGLGETPROCADDRESS("glStencilOpSeparate");
1529	AssertMsgReturn(pState->ext.glStencilOpSeparate, ("glStencilOpSeparate missing"), VERR_NOT_IMPLEMENTED);
1530	pState->ext.glStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC)OGLGETPROCADDRESS("glStencilFuncSeparate");
1531	AssertMsgReturn(pState->ext.glStencilFuncSeparate, ("glStencilFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
1532	pState->ext.glBindBuffer = (PFNGLBINDBUFFERPROC)OGLGETPROCADDRESS("glBindBuffer");
1533	AssertMsgReturn(pState->ext.glBindBuffer, ("glBindBuffer missing"), VERR_NOT_IMPLEMENTED);
1534	pState->ext.glDeleteBuffers = (PFNGLDELETEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteBuffers");
1535	AssertMsgReturn(pState->ext.glDeleteBuffers, ("glDeleteBuffers missing"), VERR_NOT_IMPLEMENTED);
1536	pState->ext.glGenBuffers = (PFNGLGENBUFFERSPROC)OGLGETPROCADDRESS("glGenBuffers");
1537	AssertMsgReturn(pState->ext.glGenBuffers, ("glGenBuffers missing"), VERR_NOT_IMPLEMENTED);
1538	pState->ext.glBufferData = (PFNGLBUFFERDATAPROC)OGLGETPROCADDRESS("glBufferData");
1539	AssertMsgReturn(pState->ext.glBufferData, ("glBufferData missing"), VERR_NOT_IMPLEMENTED);
1540	pState->ext.glMapBuffer = (PFNGLMAPBUFFERPROC)OGLGETPROCADDRESS("glMapBuffer");
1541	AssertMsgReturn(pState->ext.glMapBuffer, ("glMapBuffer missing"), VERR_NOT_IMPLEMENTED);
1542	pState->ext.glUnmapBuffer = (PFNGLUNMAPBUFFERPROC)OGLGETPROCADDRESS("glUnmapBuffer");
1543	AssertMsgReturn(pState->ext.glUnmapBuffer, ("glUnmapBuffer missing"), VERR_NOT_IMPLEMENTED);
1544	pState->ext.glEnableVertexAttribArray = (PFNGLENABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glEnableVertexAttribArray");
1545	AssertMsgReturn(pState->ext.glEnableVertexAttribArray, ("glEnableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
1546	pState->ext.glDisableVertexAttribArray = (PFNGLDISABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glDisableVertexAttribArray");
1547	AssertMsgReturn(pState->ext.glDisableVertexAttribArray, ("glDisableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
1548	pState->ext.glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC)OGLGETPROCADDRESS("glVertexAttribPointer");
1549	AssertMsgReturn(pState->ext.glVertexAttribPointer, ("glVertexAttribPointer missing"), VERR_NOT_IMPLEMENTED);
1550	pState->ext.glFogCoordPointer = (PFNGLFOGCOORDPOINTERPROC)OGLGETPROCADDRESS("glFogCoordPointer");
1551	AssertMsgReturn(pState->ext.glFogCoordPointer, ("glFogCoordPointer missing"), VERR_NOT_IMPLEMENTED);
1552	pState->ext.glActiveTexture = (PFNGLACTIVETEXTUREPROC)OGLGETPROCADDRESS("glActiveTexture");
1553	AssertMsgReturn(pState->ext.glActiveTexture, ("glActiveTexture missing"), VERR_NOT_IMPLEMENTED);
1554	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
1555	pState->ext.glClientActiveTexture = (PFNGLCLIENTACTIVETEXTUREPROC)OGLGETPROCADDRESS("glClientActiveTexture");
1556	AssertMsgReturn(pState->ext.glClientActiveTexture, ("glClientActiveTexture missing"), VERR_NOT_IMPLEMENTED);
1557	#endif
1558	pState->ext.glGetProgramivARB = (PFNGLGETPROGRAMIVARBPROC)OGLGETPROCADDRESS("glGetProgramivARB");
1559	AssertMsgReturn(pState->ext.glGetProgramivARB, ("glGetProgramivARB missing"), VERR_NOT_IMPLEMENTED);
1560
1561	/* OpenGL 3.2 core */
1562	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_draw_elements_base_vertex "))
1563	{
1564	pState->ext.glDrawElementsBaseVertex = (PFNGLDRAWELEMENTSBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsBaseVertex");
1565	pState->ext.glDrawElementsInstancedBaseVertex = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsInstancedBaseVertex");
1566	}
1567	else
1568	LogRel(("VMSVGA3d: missing extension GL_ARB_draw_elements_base_vertex\n"));
1569
1570	/* OpenGL 3.2 core */
1571	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_provoking_vertex "))
1572	{
1573	pState->ext.glProvokingVertex = (PFNGLPROVOKINGVERTEXPROC)OGLGETPROCADDRESS("glProvokingVertex");
1574	}
1575	else
1576	LogRel(("VMSVGA3d: missing extension GL_ARB_provoking_vertex\n"));
1577
1578	/* Extension support */
1579	#if defined(RT_OS_DARWIN)
1580	/** @todo OpenGL version history suggest this, verify... */
1581	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 2.0f, " GL_EXT_stencil_two_side ");
1582	#else
1583	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_stencil_two_side ");
1584	#endif
1585
1586	/*
1587	* Initialize the capabilities with sensible defaults.
1588	*/
1589	pState->caps.maxActiveLights = 1;
1590	pState->caps.maxTextureBufferSize = 65536;
1591	pState->caps.maxTextures = 1;
1592	pState->caps.maxClipDistances = 4;
1593	pState->caps.maxColorAttachments = 1;
1594	pState->caps.maxRectangleTextureSize = 2048;
1595	pState->caps.maxTextureAnisotropy = 2;
1596	pState->caps.maxVertexShaderInstructions = 1024;
1597	pState->caps.maxFragmentShaderInstructions = 1024;
1598	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
1599	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
1600	pState->caps.flPointSize[0] = 1;
1601	pState->caps.flPointSize[1] = 1;
1602
1603	/*
1604	* Query capabilities
1605	*/
1606	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
1607	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_BUFFER_SIZE, &pState->caps.maxTextureBufferSize));
1608	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
1609	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
1610	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
1611	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
1612	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1613	#else
1614	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
1615	#endif
1616	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
1617	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
1618	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
1619	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
1620
1621	if (pState->ext.glGetProgramivARB)
1622	{
1623	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
1624	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
1625	&pState->caps.maxFragmentShaderTemps));
1626	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
1627	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
1628	&pState->caps.maxFragmentShaderInstructions));
1629	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
1630	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
1631	&pState->caps.maxVertexShaderTemps));
1632	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
1633	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
1634	&pState->caps.maxVertexShaderInstructions));
1635	}
1636	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
1637
1638	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
1639	* ARB Assembly Language
1640	* These are done through testing the presence of extensions. You should test them in this order:
1641	* GL_NV_gpu_program4: SM 4.0 or better.
1642	* GL_NV_vertex_program3: SM 3.0 or better.
1643	* GL_ARB_fragment_program: SM 2.0 or better.
1644	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
1645	*
1646	*/
1647	/** @todo: distinguish between vertex and pixel shaders??? */
1648	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
1649	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
1650	{
1651	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
1652	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
1653	}
1654	else
1655	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
1656	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
1657	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
1658	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
1659	)
1660	{
1661	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
1662	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
1663	}
1664	else
1665	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
1666	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
1667	{
1668	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
1669	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
1670	}
1671	else
1672	{
1673	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
1674	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
1675	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
1676	}
1677
1678	if (!vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_vertex_array_bgra "))
1679	{
1680	/** @todo Intel drivers don't support this extension! */
1681	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
1682	}
1683	#if 0
1684	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
1685	SVGA3D_DEVCAP_QUERY_TYPES = 15,
1686	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
1687	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
1688	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
1689	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
1690	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
1691	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
1692	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
1693	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
1694	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
1695	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
1696	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
1697	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
1698	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
1699	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
1700	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
1701	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
1702	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
1703	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
1704	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
1705	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
1706	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
1707	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
1708	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
1709	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
1710	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
1711	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
1712	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
1713	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
1714	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
1715	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
1716	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
1717	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
1718	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
1719	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
1720	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
1721	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
1722	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
1723	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
1724	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
1725	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
1726	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
1727	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
1728	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
1729	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
1730	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
1731	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
1732	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
1733	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
1734	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
1735	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
1736	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
1737	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
1738	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
1739	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
1740	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
1741	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
1742	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
1743	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
1744	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
1745	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
1746	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
1747	#endif
1748
1749	LogRel(("VMSVGA3d: Capabilities:\n"));
1750	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d maxTextureBufferSize=%d\n",
1751	pState->caps.maxActiveLights, pState->caps.maxTextures, pState->caps.maxTextureBufferSize));
1752	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
1753	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
1754	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
1755	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
1756	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
1757	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
1758	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
1759	pState->caps.maxFragmentShaderTemps,
1760	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
1761	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
1762	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
1763	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
1764
1765
1766	/* Initialize the shader library. */
1767	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1768	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1769	rc = ShaderInitLib(&pState->ShaderIf);
1770	AssertRC(rc);
1771
1772	/* Cleanup */
1773	rc = vmsvga3dContextDestroy(pThis, 1);
1774	AssertRC(rc);
1775	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1776	rc = vmsvga3dContextDestroy(pThis, 2);
1777	AssertRC(rc);
1778	#endif
1779
1780	if ( pState->fGLVersion < 3.0
1781	&& pState->fOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1782	{
1783	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1784	return VERR_NOT_IMPLEMENTED;
1785	}
1786	if ( !pState->ext.glIsRenderbuffer
1787	\|\| !pState->ext.glBindRenderbuffer
1788	\|\| !pState->ext.glDeleteRenderbuffers
1789	\|\| !pState->ext.glGenRenderbuffers
1790	\|\| !pState->ext.glRenderbufferStorage
1791	\|\| !pState->ext.glGetRenderbufferParameteriv
1792	\|\| !pState->ext.glIsFramebuffer
1793	\|\| !pState->ext.glBindFramebuffer
1794	\|\| !pState->ext.glDeleteFramebuffers
1795	\|\| !pState->ext.glGenFramebuffers
1796	\|\| !pState->ext.glCheckFramebufferStatus
1797	\|\| !pState->ext.glFramebufferTexture1D
1798	\|\| !pState->ext.glFramebufferTexture2D
1799	\|\| !pState->ext.glFramebufferTexture3D
1800	\|\| !pState->ext.glFramebufferRenderbuffer
1801	\|\| !pState->ext.glGetFramebufferAttachmentParameteriv
1802	\|\| !pState->ext.glGenerateMipmap
1803	\|\| !pState->ext.glBlitFramebuffer
1804	\|\| !pState->ext.glRenderbufferStorageMultisample
1805	\|\| !pState->ext.glFramebufferTextureLayer)
1806	{
1807	LogRel(("VMSVGA3d: missing required OpenGL extension; aborting\n"));
1808	return VERR_NOT_IMPLEMENTED;
1809	}
1810
1811	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
1812	pState->idTestContext = SVGA_ID_INVALID;
1813	#endif
1814	return VINF_SUCCESS;
1815	}
1816
1817	int vmsvga3dReset(PVGASTATE pThis)
1818	{
1819	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1820	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1821
1822	/* Destroy all leftover surfaces. */
1823	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1824	{
1825	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1826	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1827	}
1828
1829	/* Destroy all leftover contexts. */
1830	for (uint32_t i = 0; i < pState->cContexts; i++)
1831	{
1832	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1833	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1834	}
1835
1836	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1837	vmsvga3dContextDestroyOgl(pThis, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1838
1839	return VINF_SUCCESS;
1840	}
1841
1842	int vmsvga3dTerminate(PVGASTATE pThis)
1843	{
1844	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1845	AssertReturn(pState, VERR_WRONG_ORDER);
1846	int rc;
1847
1848	rc = vmsvga3dReset(pThis);
1849	AssertRCReturn(rc, rc);
1850
1851	/* Terminate the shader library. */
1852	rc = ShaderDestroyLib();
1853	AssertRC(rc);
1854
1855	#ifdef RT_OS_WINDOWS
1856	/* Terminate the window creation thread. */
1857	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1858	AssertRCReturn(rc, rc);
1859
1860	RTSemEventDestroy(pState->WndRequestSem);
1861	#elif defined(RT_OS_DARWIN)
1862
1863	#elif defined(RT_OS_LINUX)
1864	/* signal to the thread that it is supposed to exit */
1865	pState->bTerminate = true;
1866	/* wait for it to terminate */
1867	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1868	AssertRC(rc);
1869	XCloseDisplay(pState->display);
1870	#endif
1871
1872	RTStrFree(pState->pszExtensions);
1873	pState->pszExtensions = NULL;
1874	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1875	RTStrFree(pState->pszOtherExtensions);
1876	#endif
1877	pState->pszOtherExtensions = NULL;
1878
1879	return VINF_SUCCESS;
1880	}
1881
1882	/* Shared functions that depend on private structure definitions. */
1883	#define VMSVGA3D_OPENGL
1884	#include "DevVGA-SVGA3d-shared.h"
1885
1886	/**
1887	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1888	* given surface format capability.
1889	*
1890	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1891	* @param pState3D The 3D state.
1892	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1893	*
1894	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1895	* of implicit guest expectations:
1896	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1897	*/
1898	static uint32_t vmsvga3dGetSurfaceFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1899	{
1900	uint32_t result = 0;
1901
1902	/* @todo missing:
1903	*
1904	* SVGA3DFORMAT_OP_PIXELSIZE
1905	*/
1906
1907	switch (idx3dCaps)
1908	{
1909	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1910	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1911	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1912	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1913	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1914	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1915	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1916	break;
1917
1918	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1919	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1920	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1921	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1922	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1923	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1924	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1925	break;
1926	}
1927
1928	/* @todo check hardware caps! */
1929	switch (idx3dCaps)
1930	{
1931	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1932	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1933	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1934	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1935	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1936	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1937	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1938	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1939	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1940	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1941	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1942	result \|= SVGA3DFORMAT_OP_TEXTURE
1943	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1944	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1945	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1946	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1947	\| SVGA3DFORMAT_OP_CUBETEXTURE
1948	\| SVGA3DFORMAT_OP_SRGBREAD
1949	\| SVGA3DFORMAT_OP_SRGBWRITE;
1950	break;
1951
1952	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1953	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1954	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1955	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1956	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1957	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1958	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1959	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1960	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1961	break;
1962
1963	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1964	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1965	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1966	result \|= SVGA3DFORMAT_OP_TEXTURE
1967	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1968	\| SVGA3DFORMAT_OP_CUBETEXTURE
1969	\| SVGA3DFORMAT_OP_SRGBREAD;
1970	break;
1971
1972	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1973	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1974	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1975	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1976	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1977	break;
1978
1979	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1980	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1981	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1982	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1983	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1984	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1985	break;
1986
1987	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1988	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1989	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1990
1991	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1992	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1993	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1994	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1995	break;
1996	}
1997	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1998
1999	return result;
2000	}
2001
2002	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
2003	{
2004	uint32_t result = 0;
2005
2006	/* @todo test this somehow */
2007	result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
2008
2009	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
2010	return result;
2011	}
2012
2013
2014	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
2015	{
2016	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2017	AssertReturn(pState, VERR_NO_MEMORY);
2018	int rc = VINF_SUCCESS;
2019
2020	*pu32Val = 0;
2021
2022	/*
2023	* The capabilities access by current (2015-03-01) linux sources (gallium,
2024	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
2025	* aren't access.
2026	*/
2027
2028	switch (idx3dCaps)
2029	{
2030	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
2031	case SVGA3D_DEVCAP_3D:
2032	pu32Val = 1; / boolean? */
2033	break;
2034
2035	case SVGA3D_DEVCAP_MAX_LIGHTS:
2036	*pu32Val = pState->caps.maxActiveLights;
2037	break;
2038
2039	case SVGA3D_DEVCAP_MAX_TEXTURES:
2040	*pu32Val = pState->caps.maxTextures;
2041	break;
2042
2043	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
2044	*pu32Val = pState->caps.maxClipDistances;
2045	break;
2046
2047	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
2048	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
2049	*pu32Val = pState->caps.vertexShaderVersion;
2050	break;
2051
2052	case SVGA3D_DEVCAP_VERTEX_SHADER:
2053	/* boolean? */
2054	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
2055	break;
2056
2057	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
2058	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
2059	*pu32Val = pState->caps.fragmentShaderVersion;
2060	break;
2061
2062	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
2063	/* boolean? */
2064	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
2065	break;
2066
2067	case SVGA3D_DEVCAP_S23E8_TEXTURES:
2068	case SVGA3D_DEVCAP_S10E5_TEXTURES:
2069	/* Must be obsolete by now; surface format caps specify the same thing. */
2070	rc = VERR_INVALID_PARAMETER;
2071	break;
2072
2073	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
2074	break;
2075
2076	/*
2077	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
2078	* return TRUE. Even on physical hardware that does not support
2079	* these formats natively, the SVGA3D device will provide an emulation
2080	* which should be invisible to the guest OS.
2081	*/
2082	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
2083	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
2084	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
2085	*pu32Val = 1;
2086	break;
2087
2088	case SVGA3D_DEVCAP_QUERY_TYPES:
2089	break;
2090
2091	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
2092	break;
2093
2094	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
2095	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
2096	AssertCompile(sizeof(uint32_t) == sizeof(float));
2097	(float )pu32Val = pState->caps.flPointSize[1];
2098	break;
2099
2100	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
2101	/* @todo ?? */
2102	rc = VERR_INVALID_PARAMETER;
2103	break;
2104
2105	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
2106	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
2107	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
2108	*pu32Val = pState->caps.maxRectangleTextureSize;
2109	break;
2110
2111	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
2112	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
2113	//*pu32Val = pCaps->MaxVolumeExtent;
2114	break;
2115
2116	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
2117	pu32Val = 32768; / hardcoded in Wine */
2118	break;
2119
2120	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
2121	//*pu32Val = pCaps->MaxTextureAspectRatio;
2122	break;
2123
2124	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
2125	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
2126	*pu32Val = pState->caps.maxTextureAnisotropy;
2127	break;
2128
2129	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
2130	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
2131	pu32Val = 0xFFFFF; / hardcoded in Wine */
2132	break;
2133
2134	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
2135	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
2136	*pu32Val = pState->caps.maxVertexShaderInstructions;
2137	break;
2138
2139	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
2140	*pu32Val = pState->caps.maxFragmentShaderInstructions;
2141	break;
2142
2143	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
2144	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
2145	*pu32Val = pState->caps.maxVertexShaderTemps;
2146	break;
2147
2148	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
2149	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
2150	*pu32Val = pState->caps.maxFragmentShaderTemps;
2151	break;
2152
2153	case SVGA3D_DEVCAP_TEXTURE_OPS:
2154	break;
2155
2156	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
2157	break;
2158
2159	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
2160	break;
2161
2162	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
2163	break;
2164
2165	case SVGA3D_DEVCAP_SUPERSAMPLE:
2166	break;
2167
2168	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
2169	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
2170	break;
2171
2172	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
2173	break;
2174
2175	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /* @todo same thing? */
2176	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
2177	*pu32Val = pState->caps.maxColorAttachments;
2178	break;
2179
2180	/*
2181	* This is the maximum number of SVGA context IDs that the guest
2182	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
2183	*/
2184	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
2185	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
2186	break;
2187
2188	/*
2189	* This is the maximum number of SVGA surface IDs that the guest
2190	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
2191	*/
2192	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
2193	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
2194	break;
2195
2196	#if 0 /* Appeared more recently, not yet implemented. */
2197	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
2198	case SVGA3D_DEVCAP_LINE_AA:
2199	break;
2200	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
2201	case SVGA3D_DEVCAP_LINE_STIPPLE:
2202	break;
2203	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
2204	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
2205	break;
2206	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
2207	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
2208	break;
2209	#endif
2210
2211	/*
2212	* Supported surface formats.
2213	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
2214	*/
2215	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
2216	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
2217	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
2218	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
2219	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
2220	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
2221	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
2222	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
2223	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
2224	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
2225	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
2226	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
2227	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
2228	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
2229	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
2230	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
2231	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
2232	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
2233	*pu32Val = vmsvga3dGetSurfaceFormatSupport(pState, idx3dCaps);
2234	break;
2235
2236	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
2237	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
2238	pu32Val = 0; / apparently not supported in OpenGL */
2239	break;
2240
2241	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
2242	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
2243	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
2244	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
2245	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
2246	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
2247	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
2248	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
2249	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
2250	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
2251	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
2252	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
2253	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
2254	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
2255	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
2256	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
2257	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
2258	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
2259	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
2260	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
2261	*pu32Val = vmsvga3dGetSurfaceFormatSupport(pState, idx3dCaps);
2262	break;
2263
2264	/* Linux: Not referenced in current sources. */
2265	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
2266	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
2267	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
2268	rc = VERR_INVALID_PARAMETER;
2269	*pu32Val = 0;
2270	break;
2271
2272	default:
2273	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
2274	rc = VERR_INVALID_PARAMETER;
2275	break;
2276	}
2277
2278	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
2279	return rc;
2280	}
2281
2282	/**
2283	* Convert SVGA format value to its OpenGL equivalent
2284	*
2285	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
2286	* help from wined3dformat_from_d3dformat().
2287	*/
2288	static void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
2289	{
2290	switch (format)
2291	{
2292	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
2293	pSurface->internalFormatGL = GL_RGB8;
2294	pSurface->formatGL = GL_BGRA;
2295	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
2296	break;
2297	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
2298	pSurface->internalFormatGL = GL_RGBA8;
2299	pSurface->formatGL = GL_BGRA;
2300	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
2301	break;
2302	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
2303	pSurface->internalFormatGL = GL_RGB5;
2304	pSurface->formatGL = GL_RGB;
2305	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
2306	AssertMsgFailed(("Test me - SVGA3D_R5G6B5\n"));
2307	break;
2308	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
2309	pSurface->internalFormatGL = GL_RGB5;
2310	pSurface->formatGL = GL_BGRA;
2311	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
2312	AssertMsgFailed(("Test me - SVGA3D_X1R5G5B5\n"));
2313	break;
2314	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
2315	pSurface->internalFormatGL = GL_RGB5_A1;
2316	pSurface->formatGL = GL_BGRA;
2317	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
2318	AssertMsgFailed(("Test me - SVGA3D_A1R5G5B5\n"));
2319	break;
2320	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
2321	pSurface->internalFormatGL = GL_RGBA4;
2322	pSurface->formatGL = GL_BGRA;
2323	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
2324	AssertMsgFailed(("Test me - SVGA3D_A4R4G4B4\n"));
2325	break;
2326
2327	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
2328	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
2329	pSurface->formatGL = GL_DEPTH_COMPONENT;
2330	pSurface->typeGL = GL_UNSIGNED_INT;
2331	break;
2332	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
2333	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
2334	pSurface->formatGL = GL_DEPTH_COMPONENT;
2335	pSurface->typeGL = GL_UNSIGNED_SHORT;
2336	//AssertMsgFailed(("Test me - SVGA3D_Z_D16\n"));
2337	break;
2338	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
2339	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
2340	pSurface->formatGL = GL_DEPTH_STENCIL;
2341	pSurface->typeGL = GL_UNSIGNED_INT;
2342	break;
2343	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
2344	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /* @todo ??? */
2345	pSurface->formatGL = GL_DEPTH_STENCIL;
2346	pSurface->typeGL = GL_UNSIGNED_SHORT;
2347	/** @todo Wine sources hints at no hw support for this, so test this one! */
2348	AssertMsgFailed(("Test me - SVGA3D_Z_D15S1\n"));
2349	break;
2350	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
2351	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
2352	pSurface->formatGL = GL_DEPTH_COMPONENT;
2353	pSurface->typeGL = GL_UNSIGNED_INT;
2354	break;
2355
2356	/* Advanced D3D9 depth formats. */
2357	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
2358	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
2359	pSurface->formatGL = GL_DEPTH_COMPONENT;
2360	pSurface->typeGL = GL_FLOAT;
2361	break;
2362
2363	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
2364	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
2365	pSurface->formatGL = GL_DEPTH_COMPONENT;
2366	pSurface->typeGL = GL_FLOAT; /* ??? */
2367	break;
2368
2369	case SVGA3D_Z_D24S8_INT: /* D3DFMT_??? - not supported */
2370	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
2371	pSurface->formatGL = GL_DEPTH_STENCIL;
2372	pSurface->typeGL = GL_INT; /* ??? */
2373	break;
2374
2375	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
2376	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
2377	#if 0
2378	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
2379	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
2380	#else /* wine suggests: */
2381	pSurface->formatGL = GL_RGBA;
2382	pSurface->typeGL = GL_UNSIGNED_BYTE;
2383	AssertMsgFailed(("Test me - SVGA3D_DXT1\n"));
2384	#endif
2385	break;
2386
2387	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
2388	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
2389	#if 0 /** @todo this needs testing... */
2390	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
2391	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
2392	#else /* wine suggests: */
2393	pSurface->formatGL = GL_RGBA;
2394	pSurface->typeGL = GL_UNSIGNED_BYTE;
2395	AssertMsgFailed(("Test me - SVGA3D_DXT3\n"));
2396	#endif
2397	break;
2398
2399	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
2400	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
2401	#if 0 /** @todo this needs testing... */
2402	pSurface->formatGL = GL_RGBA_S3TC;
2403	pSurface->typeGL = GL_UNSIGNED_INT;
2404	#else /* wine suggests: */
2405	pSurface->formatGL = GL_RGBA;
2406	pSurface->typeGL = GL_UNSIGNED_BYTE;
2407	AssertMsgFailed(("Test me - SVGA3D_DXT5\n"));
2408	#endif
2409	break;
2410
2411	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
2412	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
2413	pSurface->formatGL = GL_LUMINANCE;
2414	pSurface->typeGL = GL_UNSIGNED_BYTE;
2415	break;
2416
2417	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
2418	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
2419	pSurface->formatGL = GL_LUMINANCE;
2420	pSurface->typeGL = GL_UNSIGNED_SHORT;
2421	break;
2422
2423	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
2424	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
2425	pSurface->formatGL = GL_LUMINANCE_ALPHA;
2426	pSurface->typeGL = GL_UNSIGNED_BYTE;
2427	break;
2428
2429	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
2430	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
2431	pSurface->formatGL = GL_LUMINANCE_ALPHA;
2432	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
2433	break;
2434
2435	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
2436	pSurface->internalFormatGL = GL_ALPHA8_EXT;
2437	pSurface->formatGL = GL_ALPHA;
2438	pSurface->typeGL = GL_UNSIGNED_BYTE;
2439	break;
2440
2441	#if 0
2442
2443	/* Bump-map formats */
2444	case SVGA3D_BUMPU8V8:
2445	return D3DFMT_V8U8;
2446	case SVGA3D_BUMPL6V5U5:
2447	return D3DFMT_L6V5U5;
2448	case SVGA3D_BUMPX8L8V8U8:
2449	return D3DFMT_X8L8V8U8;
2450	case SVGA3D_BUMPL8V8U8:
2451	/* No corresponding D3D9 equivalent. */
2452	AssertFailedReturn(D3DFMT_UNKNOWN);
2453	/* signed bump-map formats */
2454	case SVGA3D_V8U8:
2455	return D3DFMT_V8U8;
2456	case SVGA3D_Q8W8V8U8:
2457	return D3DFMT_Q8W8V8U8;
2458	case SVGA3D_CxV8U8:
2459	return D3DFMT_CxV8U8;
2460	/* mixed bump-map formats */
2461	case SVGA3D_X8L8V8U8:
2462	return D3DFMT_X8L8V8U8;
2463	case SVGA3D_A2W10V10U10:
2464	return D3DFMT_A2W10V10U10;
2465	#endif
2466
2467	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
2468	pSurface->internalFormatGL = GL_RGBA16F;
2469	pSurface->formatGL = GL_RGBA;
2470	#if 0 /* bird: wine uses half float, sounds correct to me... */
2471	pSurface->typeGL = GL_FLOAT;
2472	#else
2473	pSurface->typeGL = GL_HALF_FLOAT;
2474	AssertMsgFailed(("Test me - SVGA3D_ARGB_S10E5\n"));
2475	#endif
2476	break;
2477
2478	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
2479	pSurface->internalFormatGL = GL_RGBA32F;
2480	pSurface->formatGL = GL_RGBA;
2481	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
2482	break;
2483
2484	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
2485	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
2486	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
2487	pSurface->formatGL = GL_RGBA;
2488	#else
2489	pSurface->formatGL = GL_BGRA;
2490	#endif
2491	pSurface->typeGL = GL_UNSIGNED_INT;
2492	AssertMsgFailed(("Test me - SVGA3D_A2R10G10B10\n"));
2493	break;
2494
2495
2496	/* Single- and dual-component floating point formats */
2497	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
2498	pSurface->internalFormatGL = GL_R16F;
2499	pSurface->formatGL = GL_RED;
2500	#if 0 /* bird: wine uses half float, sounds correct to me... */
2501	pSurface->typeGL = GL_FLOAT;
2502	#else
2503	pSurface->typeGL = GL_HALF_FLOAT;
2504	AssertMsgFailed(("Test me - SVGA3D_R_S10E5\n"));
2505	#endif
2506	break;
2507	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
2508	pSurface->internalFormatGL = GL_R32F;
2509	pSurface->formatGL = GL_RG;
2510	pSurface->typeGL = GL_FLOAT;
2511	break;
2512	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
2513	pSurface->internalFormatGL = GL_RG16F;
2514	pSurface->formatGL = GL_RG;
2515	#if 0 /* bird: wine uses half float, sounds correct to me... */
2516	pSurface->typeGL = GL_FLOAT;
2517	#else
2518	pSurface->typeGL = GL_HALF_FLOAT;
2519	AssertMsgFailed(("Test me - SVGA3D_RG_S10E5\n"));
2520	#endif
2521	break;
2522	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
2523	pSurface->internalFormatGL = GL_RG32F;
2524	pSurface->formatGL = GL_RG;
2525	pSurface->typeGL = GL_FLOAT;
2526	break;
2527
2528	/*
2529	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
2530	* the most efficient format to use when creating new surfaces
2531	* expressly for index or vertex data.
2532	*/
2533	case SVGA3D_BUFFER:
2534	pSurface->internalFormatGL = -1;
2535	pSurface->formatGL = -1;
2536	pSurface->typeGL = -1;
2537	break;
2538
2539	#if 0
2540	return D3DFMT_UNKNOWN;
2541
2542	case SVGA3D_V16U16:
2543	return D3DFMT_V16U16;
2544	#endif
2545
2546	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
2547	pSurface->internalFormatGL = GL_RG16;
2548	pSurface->formatGL = GL_RG;
2549	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
2550	pSurface->typeGL = GL_UNSIGNED_INT;
2551	#else
2552	pSurface->typeGL = GL_UNSIGNED_SHORT;
2553	AssertMsgFailed(("test me - SVGA3D_G16R16\n"));
2554	#endif
2555	break;
2556
2557	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
2558	pSurface->internalFormatGL = GL_RGBA16;
2559	pSurface->formatGL = GL_RGBA;
2560	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
2561	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
2562	#else
2563	pSurface->typeGL = GL_UNSIGNED_SHORT;
2564	AssertMsgFailed(("Test me - SVGA3D_A16B16G16R16\n"));
2565	#endif
2566	break;
2567
2568	#if 0
2569	/* Packed Video formats */
2570	case SVGA3D_UYVY:
2571	return D3DFMT_UYVY;
2572	case SVGA3D_YUY2:
2573	return D3DFMT_YUY2;
2574
2575	/* Planar video formats */
2576	case SVGA3D_NV12:
2577	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
2578
2579	/* Video format with alpha */
2580	case SVGA3D_AYUV:
2581	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
2582
2583	case SVGA3D_BC4_UNORM:
2584	case SVGA3D_BC5_UNORM:
2585	/* Unknown; only in DX10 & 11 */
2586	break;
2587	#endif
2588	default:
2589	AssertMsgFailed(("Unsupported format %d\n", format));
2590	break;
2591	}
2592	}
2593
2594
2595	#if 0
2596	/**
2597	* Convert SVGA multi sample count value to its D3D equivalent
2598	*/
2599	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
2600	{
2601	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
2602	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
2603
2604	if (multisampleCount > 16)
2605	return D3DMULTISAMPLE_NONE;
2606
2607	/* @todo exact same mapping as d3d? */
2608	return (D3DMULTISAMPLE_TYPE)multisampleCount;
2609	}
2610	#endif
2611
2612	int vmsvga3dSurfaceDefine(PVGASTATE pThis, uint32_t sid, uint32_t surfaceFlags, SVGA3dSurfaceFormat format,
2613	SVGA3dSurfaceFace face[SVGA3D_MAX_SURFACE_FACES], uint32_t multisampleCount,
2614	SVGA3dTextureFilter autogenFilter, uint32_t cMipLevels, SVGA3dSize *pMipLevelSize)
2615	{
2616	PVMSVGA3DSURFACE pSurface;
2617	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2618	AssertReturn(pState, VERR_NO_MEMORY);
2619
2620	Log(("vmsvga3dSurfaceDefine: sid=%x surfaceFlags=%x format=%s (%x) multiSampleCount=%d autogenFilter=%d, cMipLevels=%d size=(%d,%d,%d)\n",
2621	sid, surfaceFlags, vmsvgaLookupEnum((int)format, &g_SVGA3dSurfaceFormat2String), format, multisampleCount, autogenFilter, cMipLevels, pMipLevelSize->width, pMipLevelSize->height, pMipLevelSize->depth));
2622
2623	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2624	AssertReturn(cMipLevels >= 1, VERR_INVALID_PARAMETER);
2625	/* Assuming all faces have the same nr of mipmaps. */
2626	AssertReturn(!(surfaceFlags & SVGA3D_SURFACE_CUBEMAP) \|\| cMipLevels == face[0].numMipLevels * 6, VERR_INVALID_PARAMETER);
2627	AssertReturn((surfaceFlags & SVGA3D_SURFACE_CUBEMAP) \|\| cMipLevels == face[0].numMipLevels, VERR_INVALID_PARAMETER);
2628
2629	if (sid >= pState->cSurfaces)
2630	{
2631	/* Grow the array. */
2632	uint32_t cNew = RT_ALIGN(sid + 15, 16);
2633	void pvNew = RTMemRealloc(pState->papSurfaces, sizeof(pState->papSurfaces[0]) cNew);
2634	AssertReturn(pvNew, VERR_NO_MEMORY);
2635	pState->papSurfaces = (PVMSVGA3DSURFACE *)pvNew;
2636	while (pState->cSurfaces < cNew)
2637	{
2638	pSurface = (PVMSVGA3DSURFACE)RTMemAllocZ(sizeof(*pSurface));
2639	AssertReturn(pSurface, VERR_NO_MEMORY);
2640	pSurface->id = SVGA3D_INVALID_ID;
2641	pState->papSurfaces[pState->cSurfaces++] = pSurface;
2642	}
2643	}
2644	pSurface = pState->papSurfaces[sid];
2645
2646	/* If one already exists with this id, then destroy it now. */
2647	if (pSurface->id != SVGA3D_INVALID_ID)
2648	vmsvga3dSurfaceDestroy(pThis, sid);
2649
2650	memset(pSurface, 0, sizeof(*pSurface));
2651	pSurface->id = sid;
2652	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
2653	pSurface->idWeakContextAssociation = SVGA3D_INVALID_ID;
2654	#else
2655	pSurface->idAssociatedContext = SVGA3D_INVALID_ID;
2656	#endif
2657	vmsvga3dSurfaceFormat2OGL(pSurface, format);
2658
2659	pSurface->oglId.buffer = OPENGL_INVALID_ID;
2660
2661	/* The surface type is sort of undefined now, even though the hints and format can help to clear that up.
2662	* In some case we'll have to wait until the surface is used to create the D3D object.
2663	*/
2664	switch (format)
2665	{
2666	case SVGA3D_Z_D32:
2667	case SVGA3D_Z_D16:
2668	case SVGA3D_Z_D24S8:
2669	case SVGA3D_Z_D15S1:
2670	case SVGA3D_Z_D24X8:
2671	case SVGA3D_Z_DF16:
2672	case SVGA3D_Z_DF24:
2673	case SVGA3D_Z_D24S8_INT:
2674	surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
2675	break;
2676
2677	/* Texture compression formats */
2678	case SVGA3D_DXT1:
2679	case SVGA3D_DXT2:
2680	case SVGA3D_DXT3:
2681	case SVGA3D_DXT4:
2682	case SVGA3D_DXT5:
2683	/* Bump-map formats */
2684	case SVGA3D_BUMPU8V8:
2685	case SVGA3D_BUMPL6V5U5:
2686	case SVGA3D_BUMPX8L8V8U8:
2687	case SVGA3D_BUMPL8V8U8:
2688	case SVGA3D_V8U8:
2689	case SVGA3D_Q8W8V8U8:
2690	case SVGA3D_CxV8U8:
2691	case SVGA3D_X8L8V8U8:
2692	case SVGA3D_A2W10V10U10:
2693	case SVGA3D_V16U16:
2694	/* Typical render target formats; we should allow render target buffers to be used as textures. */
2695	case SVGA3D_X8R8G8B8:
2696	case SVGA3D_A8R8G8B8:
2697	case SVGA3D_R5G6B5:
2698	case SVGA3D_X1R5G5B5:
2699	case SVGA3D_A1R5G5B5:
2700	case SVGA3D_A4R4G4B4:
2701	surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2702	break;
2703
2704	case SVGA3D_LUMINANCE8:
2705	case SVGA3D_LUMINANCE4_ALPHA4:
2706	case SVGA3D_LUMINANCE16:
2707	case SVGA3D_LUMINANCE8_ALPHA8:
2708	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB */
2709	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB */
2710	case SVGA3D_A2R10G10B10:
2711	case SVGA3D_ALPHA8:
2712	case SVGA3D_R_S10E5:
2713	case SVGA3D_R_S23E8:
2714	case SVGA3D_RG_S10E5:
2715	case SVGA3D_RG_S23E8:
2716	case SVGA3D_G16R16:
2717	case SVGA3D_A16B16G16R16:
2718	case SVGA3D_UYVY:
2719	case SVGA3D_YUY2:
2720	case SVGA3D_NV12:
2721	case SVGA3D_AYUV:
2722	case SVGA3D_BC4_UNORM:
2723	case SVGA3D_BC5_UNORM:
2724	break;
2725
2726	/*
2727	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
2728	* the most efficient format to use when creating new surfaces
2729	* expressly for index or vertex data.
2730	*/
2731	case SVGA3D_BUFFER:
2732	break;
2733
2734	default:
2735	break;
2736	}
2737
2738	pSurface->flags = surfaceFlags;
2739	pSurface->format = format;
2740	memcpy(pSurface->faces, face, sizeof(pSurface->faces));
2741	pSurface->cFaces = 1; /* check for cube maps later */
2742	pSurface->multiSampleCount = multisampleCount;
2743	pSurface->autogenFilter = autogenFilter;
2744	Assert(autogenFilter != SVGA3D_TEX_FILTER_FLATCUBIC);
2745	Assert(autogenFilter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2746	pSurface->pMipmapLevels = (PVMSVGA3DMIPMAPLEVEL)RTMemAllocZ(cMipLevels * sizeof(VMSVGA3DMIPMAPLEVEL));
2747	AssertReturn(pSurface->pMipmapLevels, VERR_NO_MEMORY);
2748
2749	for (uint32_t i=0; i < cMipLevels; i++)
2750	pSurface->pMipmapLevels[i].size = pMipLevelSize[i];
2751
2752	pSurface->cbBlock = vmsvga3dSurfaceFormatSize(format);
2753
2754	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))
2755	{
2756	case SVGA3D_SURFACE_CUBEMAP:
2757	Log(("SVGA3D_SURFACE_CUBEMAP\n"));
2758	pSurface->cFaces = 6;
2759	break;
2760
2761	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2762	Log(("SVGA3D_SURFACE_HINT_INDEXBUFFER\n"));
2763	/* else type unknown at this time; postpone buffer creation */
2764	break;
2765
2766	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2767	Log(("SVGA3D_SURFACE_HINT_VERTEXBUFFER\n"));
2768	/* Type unknown at this time; postpone buffer creation */
2769	break;
2770
2771	case SVGA3D_SURFACE_HINT_TEXTURE:
2772	Log(("SVGA3D_SURFACE_HINT_TEXTURE\n"));
2773	break;
2774
2775	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2776	Log(("SVGA3D_SURFACE_HINT_RENDERTARGET\n"));
2777	break;
2778
2779	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2780	Log(("SVGA3D_SURFACE_HINT_DEPTHSTENCIL\n"));
2781	break;
2782
2783	default:
2784	/* Unknown; decide later. */
2785	break;
2786	}
2787
2788	/* Allocate buffer to hold the surface data until we can move it into a D3D object */
2789	for (uint32_t iFace=0; iFace < pSurface->cFaces; iFace++)
2790	{
2791	for (uint32_t i=0; i < pSurface->faces[iFace].numMipLevels; i++)
2792	{
2793	uint32_t idx = i + iFace * pSurface->faces[0].numMipLevels;
2794
2795	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));
2796	Log(("vmsvga3dSurfaceDefine: cbPitch=%x cbBlock=%x \n", pSurface->cbBlock * pSurface->pMipmapLevels[idx].size.width, pSurface->cbBlock));
2797
2798	pSurface->pMipmapLevels[idx].cbSurfacePitch = pSurface->cbBlock * pSurface->pMipmapLevels[idx].size.width;
2799	pSurface->pMipmapLevels[idx].cbSurface = pSurface->pMipmapLevels[idx].cbSurfacePitch * pSurface->pMipmapLevels[idx].size.height * pSurface->pMipmapLevels[idx].size.depth;
2800	pSurface->pMipmapLevels[idx].pSurfaceData = RTMemAllocZ(pSurface->pMipmapLevels[idx].cbSurface);
2801	AssertReturn(pSurface->pMipmapLevels[idx].pSurfaceData, VERR_NO_MEMORY);
2802	}
2803	}
2804	return VINF_SUCCESS;
2805	}
2806
2807	int vmsvga3dSurfaceDestroy(PVGASTATE pThis, uint32_t sid)
2808	{
2809	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2810	AssertReturn(pState, VERR_NO_MEMORY);
2811
2812	if ( sid < pState->cSurfaces
2813	&& pState->papSurfaces[sid]->id == sid)
2814	{
2815	PVMSVGA3DSURFACE pSurface = pState->papSurfaces[sid];
2816	PVMSVGA3DCONTEXT pContext;
2817
2818	Log(("vmsvga3dSurfaceDestroy id %x\n", sid));
2819
2820	#if 1 /* Windows is doing this, guess it makes sense here as well... */
2821	/* Check all contexts if this surface is used as a render target or active texture. */
2822	for (uint32_t cid = 0; cid < pState->cContexts; cid++)
2823	{
2824	pContext = pState->papContexts[cid];
2825	if (pContext->id == cid)
2826	{
2827	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTexture); i++)
2828	if (pContext->aSidActiveTexture[i] == sid)
2829	pContext->aSidActiveTexture[i] = SVGA3D_INVALID_ID;
2830	if (pContext->sidRenderTarget == sid)
2831	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
2832	}
2833	}
2834	#endif
2835
2836	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
2837	pContext = &pState->SharedCtx;
2838	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2839	#else
2840	/* @todo stricter checks for associated context */
2841	uint32_t cid = pSurface->idAssociatedContext;
2842	if ( cid <= pState->cContexts
2843	&& pState->papContexts[cid]->id == cid)
2844	{
2845	pContext = pState->papContexts[cid];
2846	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2847	}
2848	/* If there is a GL buffer or something associated with the surface, we
2849	really need something here, so pick any active context. */
2850	else if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
2851	{
2852	for (cid = 0; cid < pState->cContexts; cid++)
2853	{
2854	if (pState->papContexts[cid]->id == cid)
2855	{
2856	pContext = pState->papContexts[cid];
2857	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2858	break;
2859	}
2860	}
2861	AssertReturn(pContext, VERR_INTERNAL_ERROR); /* otherwise crashes/fails; create temp context if this ever triggers! */
2862	}
2863	#endif
2864
2865	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))
2866	{
2867	case SVGA3D_SURFACE_CUBEMAP:
2868	AssertFailed(); /* @todo */
2869	break;
2870
2871	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2872	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2873	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
2874	{
2875	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
2876	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2877	}
2878	break;
2879
2880	case SVGA3D_SURFACE_HINT_TEXTURE:
2881	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2882	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
2883	{
2884	glDeleteTextures(1, &pSurface->oglId.texture);
2885	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2886	}
2887	break;
2888
2889	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2890	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2891	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /* @todo actual texture surface not supported */
2892	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
2893	{
2894	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
2895	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2896	}
2897	break;
2898
2899	default:
2900	break;
2901	}
2902
2903	if (pSurface->pMipmapLevels)
2904	{
2905	for (uint32_t face=0; face < pSurface->cFaces; face++)
2906	{
2907	for (uint32_t i=0; i < pSurface->faces[face].numMipLevels; i++)
2908	{
2909	uint32_t idx = i + face * pSurface->faces[0].numMipLevels;
2910	if (pSurface->pMipmapLevels[idx].pSurfaceData)
2911	RTMemFree(pSurface->pMipmapLevels[idx].pSurfaceData);
2912	}
2913	}
2914	RTMemFree(pSurface->pMipmapLevels);
2915	}
2916
2917	memset(pSurface, 0, sizeof(*pSurface));
2918	pSurface->id = SVGA3D_INVALID_ID;
2919	}
2920	else
2921	AssertFailedReturn(VERR_INVALID_PARAMETER);
2922
2923	return VINF_SUCCESS;
2924	}
2925
2926	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
2927	{
2928	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2929	uint32_t sidSrc = src.sid;
2930	uint32_t sidDest = dest.sid;
2931	int rc = VINF_SUCCESS;
2932
2933	AssertReturn(pState, VERR_NO_MEMORY);
2934	AssertReturn(sidSrc < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2935	AssertReturn(sidSrc < pState->cSurfaces && pState->papSurfaces[sidSrc]->id == sidSrc, VERR_INVALID_PARAMETER);
2936	AssertReturn(sidDest < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2937	AssertReturn(sidDest < pState->cSurfaces && pState->papSurfaces[sidDest]->id == sidDest, VERR_INVALID_PARAMETER);
2938
2939	for (uint32_t i = 0; i < cCopyBoxes; i++)
2940	{
2941	SVGA3dBox destBox, srcBox;
2942
2943	srcBox.x = pBox[i].srcx;
2944	srcBox.y = pBox[i].srcy;
2945	srcBox.z = pBox[i].srcz;
2946	srcBox.w = pBox[i].w;
2947	srcBox.h = pBox[i].h;
2948	srcBox.d = pBox[i].z; /* XXX what about pBox[i].d? */
2949
2950	destBox.x = pBox[i].x;
2951	destBox.y = pBox[i].y;
2952	destBox.z = pBox[i].z;
2953	destBox.w = pBox[i].w;
2954	destBox.h = pBox[i].h;
2955	destBox.z = pBox[i].z; /* XXX initializing destBox.z again? What about pBox[i].d and destBox.d? */
2956
2957	rc = vmsvga3dSurfaceStretchBlt(pThis, dest, destBox, src, srcBox, SVGA3D_STRETCH_BLT_LINEAR);
2958	AssertRCReturn(rc, rc);
2959	}
2960	return VINF_SUCCESS;
2961	}
2962
2963
2964	/**
2965	* Save texture unpacking parameters and loads those appropriate for the given
2966	* surface.
2967	*
2968	* @param pState The VMSVGA3D state structure.
2969	* @param pContext The active context.
2970	* @param pSurface The surface.
2971	* @param pSave Where to save stuff.
2972	*/
2973	static void vmsvga3dSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2974	PVMSVGAPACKPARAMS pSave)
2975	{
2976	/*
2977	* Save (ignore errors, setting the defaults we want and avoids restore).
2978	*/
2979	pSave->iAlignment = 1;
2980	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2981	pSave->cxRow = 0;
2982	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2983
2984	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2985	pSave->cyImage = 0;
2986	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
2987	Assert(pSave->cyImage == 0);
2988
2989	pSave->fSwapBytes = GL_FALSE;
2990	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
2991	Assert(pSave->fSwapBytes == GL_FALSE);
2992
2993	pSave->fLsbFirst = GL_FALSE;
2994	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
2995	Assert(pSave->fLsbFirst == GL_FALSE);
2996
2997	pSave->cSkipRows = 0;
2998	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
2999	Assert(pSave->cSkipRows == 0);
3000
3001	pSave->cSkipPixels = 0;
3002	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
3003	Assert(pSave->cSkipPixels == 0);
3004
3005	pSave->cSkipImages = 0;
3006	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
3007	Assert(pSave->cSkipImages == 0);
3008
3009	VMSVGA3D_CLEAR_GL_ERRORS();
3010	#endif
3011
3012	/*
3013	* Setup unpack.
3014	*
3015	* Note! We use 1 as alignment here because we currently don't do any
3016	* aligning of line pitches anywhere.
3017	*/
3018	NOREF(pSurface);
3019	if (pSave->iAlignment != 1)
3020	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
3021	if (pSave->cxRow != 0)
3022	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
3023	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
3024	if (pSave->cyImage != 0)
3025	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
3026	if (pSave->fSwapBytes != 0)
3027	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
3028	if (pSave->fLsbFirst != 0)
3029	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
3030	if (pSave->cSkipRows != 0)
3031	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
3032	if (pSave->cSkipPixels != 0)
3033	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
3034	if (pSave->cSkipImages != 0)
3035	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
3036	#endif
3037	}
3038
3039
3040	/**
3041	* Restores texture unpacking parameters.
3042	*
3043	* @param pState The VMSVGA3D state structure.
3044	* @param pContext The active context.
3045	* @param pSurface The surface.
3046	* @param pSave Where stuff was saved.
3047	*/
3048	static void vmsvga3dRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
3049	PCVMSVGAPACKPARAMS pSave)
3050	{
3051	NOREF(pSurface);
3052	if (pSave->iAlignment != 1)
3053	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
3054	if (pSave->cxRow != 0)
3055	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
3056	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
3057	if (pSave->cyImage != 0)
3058	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
3059	if (pSave->fSwapBytes != 0)
3060	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
3061	if (pSave->fLsbFirst != 0)
3062	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
3063	if (pSave->cSkipRows != 0)
3064	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
3065	if (pSave->cSkipPixels != 0)
3066	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
3067	if (pSave->cSkipImages != 0)
3068	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
3069	#endif
3070	}
3071
3072
3073	/* Create D3D texture object for the specified surface. */
3074	static int vmsvga3dCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
3075	PVMSVGA3DSURFACE pSurface)
3076	{
3077	GLint activeTexture = 0;
3078	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
3079	uint32_t idPrevCtx = pState->idActiveContext;
3080	pContext = &pState->SharedCtx;
3081	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3082	#endif
3083
3084	glGenTextures(1, &pSurface->oglId.texture);
3085	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3086	/* @todo Set the mip map generation filter settings. */
3087
3088	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
3089	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3090
3091	/* Must bind texture to the current context in order to change it. */
3092	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
3093	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3094
3095	/* Set the unpacking parameters. */
3096	VMSVGAPACKPARAMS SavedParams;
3097	vmsvga3dSetUnpackParams(pState, pContext, pSurface, &SavedParams);
3098
3099	/* Set the mipmap base and max level paramters. */
3100	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
3101	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3102	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels);
3103	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3104
3105	if (pSurface->fDirty)
3106	Log(("vmsvga3dCreateTexture: sync dirty texture\n"));
3107
3108	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
3109	for (uint32_t i = 0; i < pSurface->faces[0].numMipLevels; i++)
3110	{
3111	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
3112	exposing random host memory to the guest and helps a with the fedora 21 surface
3113	corruption issues (launchpad, background, search field, login). */
3114	if (pSurface->pMipmapLevels[i].fDirty)
3115	Log(("vmsvga3dCreateTexture: sync dirty texture mipmap level %d (pitch %x)\n", i, pSurface->pMipmapLevels[i].cbSurfacePitch));
3116
3117	glTexImage2D(GL_TEXTURE_2D,
3118	i,
3119	pSurface->internalFormatGL,
3120	pSurface->pMipmapLevels[i].size.width,
3121	pSurface->pMipmapLevels[i].size.height,
3122	0,
3123	pSurface->formatGL,
3124	pSurface->typeGL,
3125	pSurface->pMipmapLevels[i].pSurfaceData);
3126
3127	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3128
3129	pSurface->pMipmapLevels[i].fDirty = false;
3130	}
3131	pSurface->fDirty = false;
3132
3133	/* Restore unpacking parameters. */
3134	vmsvga3dRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
3135
3136	/* Restore the old active texture. */
3137	glBindTexture(GL_TEXTURE_2D, activeTexture);
3138	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3139
3140	pSurface->flags \|= SVGA3D_SURFACE_HINT_TEXTURE;
3141	#ifndef VMSVGA3D_OGL_WITH_SHARED_CTX
3142	LogFlow(("vmsvga3dCreateTexture: sid=%x idAssociatedContext %#x -> %#x; oglId.texture=%#x\n",
3143	pSurface->id, pSurface->idAssociatedContext, idAssociatedContext, pSurface->oglId.texture));
3144	pSurface->idAssociatedContext = idAssociatedContext;
3145	#endif
3146
3147	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
3148	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
3149	{
3150	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
3151	}
3152	#endif
3153	return VINF_SUCCESS;
3154	}
3155
3156	int vmsvga3dSurfaceStretchBlt(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dBox destBox,
3157	SVGA3dSurfaceImageId src, SVGA3dBox srcBox, SVGA3dStretchBltMode mode)
3158	{
3159	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3160	PVMSVGA3DSURFACE pSurfaceSrc;
3161	uint32_t sidSrc = src.sid;
3162	PVMSVGA3DSURFACE pSurfaceDest;
3163	uint32_t sidDest = dest.sid;
3164	int rc = VINF_SUCCESS;
3165	uint32_t cid;
3166	PVMSVGA3DCONTEXT pContext;
3167
3168	AssertReturn(pState, VERR_NO_MEMORY);
3169	AssertReturn(sidSrc < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
3170	AssertReturn(sidSrc < pState->cSurfaces && pState->papSurfaces[sidSrc]->id == sidSrc, VERR_INVALID_PARAMETER);
3171	AssertReturn(sidDest < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
3172	AssertReturn(sidDest < pState->cSurfaces && pState->papSurfaces[sidDest]->id == sidDest, VERR_INVALID_PARAMETER);
3173
3174	pSurfaceSrc = pState->papSurfaces[sidSrc];
3175	pSurfaceDest = pState->papSurfaces[sidDest];
3176	AssertReturn(pSurfaceSrc->faces[0].numMipLevels > src.mipmap, VERR_INVALID_PARAMETER);
3177	AssertReturn(pSurfaceDest->faces[0].numMipLevels > dest.mipmap, VERR_INVALID_PARAMETER);
3178
3179	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
3180	Log(("vmsvga3dSurfaceStretchBlt: src sid=%x (%d,%d)(%d,%d) dest sid=%x (%d,%d)(%d,%d) mode=%x\n",
3181	src.sid, srcBox.x, srcBox.y, srcBox.x + srcBox.w, srcBox.y + srcBox.h,
3182	dest.sid, destBox.x, destBox.y, destBox.x + destBox.w, destBox.y + destBox.h, mode));
3183	cid = SVGA3D_INVALID_ID;
3184	pContext = &pState->SharedCtx;
3185	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3186	#else
3187	Log(("vmsvga3dSurfaceStretchBlt: src sid=%x cid=%x (%d,%d)(%d,%d) dest sid=%x cid=%x (%d,%d)(%d,%d) mode=%x\n",
3188	src.sid, pSurfaceSrc->idAssociatedContext, srcBox.x, srcBox.y, srcBox.x + srcBox.w, srcBox.y + srcBox.h,
3189	dest.sid, pSurfaceDest->idAssociatedContext, destBox.x, destBox.y, destBox.x + destBox.w, destBox.y + destBox.h, mode));
3190
3191	/* @todo stricter checks for associated context */
3192	cid = pSurfaceDest->idAssociatedContext;
3193	if (cid == SVGA3D_INVALID_ID)
3194	cid = pSurfaceSrc->idAssociatedContext;
3195
3196	if ( cid >= pState->cContexts
3197	\|\| pState->papContexts[cid]->id != cid)
3198	{
3199	Log(("vmsvga3dSurfaceStretchBlt invalid context id!\n"));
3200	AssertFailedReturn(VERR_INVALID_PARAMETER);
3201	}
3202	pContext = pState->papContexts[cid];
3203	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3204	#endif
3205
3206	if (pSurfaceSrc->oglId.texture == OPENGL_INVALID_ID)
3207	{
3208	/* Unknown surface type; turn it into a texture, which can be used for other purposes too. */
3209	Log(("vmsvga3dSurfaceStretchBlt: unknown src surface id=%x type=%d format=%d -> create texture\n", sidSrc, pSurfaceSrc->flags, pSurfaceSrc->format));
3210	rc = vmsvga3dCreateTexture(pState, pContext, cid, pSurfaceSrc);
3211	AssertRCReturn(rc, rc);
3212	}
3213
3214	if (pSurfaceDest->oglId.texture == OPENGL_INVALID_ID)
3215	{
3216	/* Unknown surface type; turn it into a texture, which can be used for other purposes too. */
3217	Log(("vmsvga3dSurfaceStretchBlt: unknown dest surface id=%x type=%d format=%d -> create texture\n", sidDest, pSurfaceDest->flags, pSurfaceDest->format));
3218	rc = vmsvga3dCreateTexture(pState, pContext, cid, pSurfaceDest);
3219	AssertRCReturn(rc, rc);
3220	}
3221
3222	/* Activate the read and draw framebuffer objects. */
3223	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
3224	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3225	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
3226	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3227
3228	/* Bind the source and destination objects to the right place. */
3229	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
3230	pSurfaceSrc->oglId.texture, src.mipmap);
3231	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3232	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
3233	pSurfaceDest->oglId.texture, dest.mipmap);
3234	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3235
3236	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),
3237	srcBox.x + srcBox.w, D3D_TO_OGL_Y_COORD(pSurfaceSrc, srcBox.y), destBox.x, D3D_TO_OGL_Y_COORD(pSurfaceDest, destBox.y + destBox.h),
3238	destBox.x + destBox.w, D3D_TO_OGL_Y_COORD(pSurfaceDest, destBox.y)));
3239
3240	pState->ext.glBlitFramebuffer(srcBox.x,
3241	#ifdef MANUAL_FLIP_SURFACE_DATA
3242	D3D_TO_OGL_Y_COORD(pSurfaceSrc, srcBox.y + srcBox.h), /* inclusive */
3243	#else
3244	srcBox.y,
3245	#endif
3246	srcBox.x + srcBox.w, /* exclusive. */
3247	#ifdef MANUAL_FLIP_SURFACE_DATA
3248	D3D_TO_OGL_Y_COORD(pSurfaceSrc, srcBox.y), /* exclusive */
3249	#else
3250	srcBox.y + srcBox.h,
3251	#endif
3252	destBox.x,
3253	#ifdef MANUAL_FLIP_SURFACE_DATA
3254	D3D_TO_OGL_Y_COORD(pSurfaceDest, destBox.y + destBox.h), /* inclusive. */
3255	#else
3256	destBox.y,
3257	#endif
3258	destBox.x + destBox.w, /* exclusive. */
3259	#ifdef MANUAL_FLIP_SURFACE_DATA
3260	D3D_TO_OGL_Y_COORD(pSurfaceDest, destBox.y), /* exclusive */
3261	#else
3262	destBox.y + destBox.h,
3263	#endif
3264	GL_COLOR_BUFFER_BIT,
3265	(mode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
3266	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3267
3268	/* Reset the frame buffer association */
3269	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3270	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3271
3272	return VINF_SUCCESS;
3273	}
3274
3275	/**
3276	* Save texture packing parameters and loads those appropriate for the given
3277	* surface.
3278	*
3279	* @param pState The VMSVGA3D state structure.
3280	* @param pContext The active context.
3281	* @param pSurface The surface.
3282	* @param pSave Where to save stuff.
3283	*/
3284	static void vmsvga3dSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
3285	PVMSVGAPACKPARAMS pSave)
3286	{
3287	/*
3288	* Save (ignore errors, setting the defaults we want and avoids restore).
3289	*/
3290	pSave->iAlignment = 1;
3291	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
3292	pSave->cxRow = 0;
3293	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
3294
3295	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
3296	pSave->cyImage = 0;
3297	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
3298	Assert(pSave->cyImage == 0);
3299
3300	pSave->fSwapBytes = GL_FALSE;
3301	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
3302	Assert(pSave->fSwapBytes == GL_FALSE);
3303
3304	pSave->fLsbFirst = GL_FALSE;
3305	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
3306	Assert(pSave->fLsbFirst == GL_FALSE);
3307
3308	pSave->cSkipRows = 0;
3309	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
3310	Assert(pSave->cSkipRows == 0);
3311
3312	pSave->cSkipPixels = 0;
3313	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
3314	Assert(pSave->cSkipPixels == 0);
3315
3316	pSave->cSkipImages = 0;
3317	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
3318	Assert(pSave->cSkipImages == 0);
3319
3320	VMSVGA3D_CLEAR_GL_ERRORS();
3321	#endif
3322
3323	/*
3324	* Setup unpack.
3325	*
3326	* Note! We use 1 as alignment here because we currently don't do any
3327	* aligning of line pitches anywhere.
3328	*/
3329	NOREF(pSurface);
3330	if (pSave->iAlignment != 1)
3331	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
3332	if (pSave->cxRow != 0)
3333	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
3334	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
3335	if (pSave->cyImage != 0)
3336	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
3337	if (pSave->fSwapBytes != 0)
3338	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
3339	if (pSave->fLsbFirst != 0)
3340	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
3341	if (pSave->cSkipRows != 0)
3342	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
3343	if (pSave->cSkipPixels != 0)
3344	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
3345	if (pSave->cSkipImages != 0)
3346	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
3347	#endif
3348	}
3349
3350
3351	/**
3352	* Restores texture packing parameters.
3353	*
3354	* @param pState The VMSVGA3D state structure.
3355	* @param pContext The active context.
3356	* @param pSurface The surface.
3357	* @param pSave Where stuff was saved.
3358	*/
3359	static void vmsvga3dRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
3360	PCVMSVGAPACKPARAMS pSave)
3361	{
3362	NOREF(pSurface);
3363	if (pSave->iAlignment != 1)
3364	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
3365	if (pSave->cxRow != 0)
3366	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
3367	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
3368	if (pSave->cyImage != 0)
3369	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
3370	if (pSave->fSwapBytes != 0)
3371	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
3372	if (pSave->fLsbFirst != 0)
3373	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
3374	if (pSave->cSkipRows != 0)
3375	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
3376	if (pSave->cSkipPixels != 0)
3377	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
3378	if (pSave->cSkipImages != 0)
3379	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
3380	#endif
3381	}
3382
3383
3384	int vmsvga3dSurfaceDMA(PVGASTATE pThis, SVGA3dGuestImage guest, SVGA3dSurfaceImageId host, SVGA3dTransferType transfer,
3385	uint32_t cCopyBoxes, SVGA3dCopyBox *pBoxes)
3386	{
3387	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3388	PVMSVGA3DSURFACE pSurface;
3389	PVMSVGA3DMIPMAPLEVEL pMipLevel;
3390	uint32_t sid = host.sid;
3391	int rc = VINF_SUCCESS;
3392
3393	AssertReturn(pState, VERR_NO_MEMORY);
3394	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
3395	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
3396
3397	pSurface = pState->papSurfaces[sid];
3398	AssertReturn(pSurface->faces[0].numMipLevels > host.mipmap, VERR_INVALID_PARAMETER);
3399	pMipLevel = &pSurface->pMipmapLevels[host.mipmap];
3400
3401	if (pSurface->flags & SVGA3D_SURFACE_HINT_TEXTURE)
3402	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));
3403	else
3404	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));
3405
3406	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
3407	{
3408	AssertReturn(pSurface->pMipmapLevels[host.mipmap].pSurfaceData, VERR_INTERNAL_ERROR);
3409
3410	for (unsigned i = 0; i < cCopyBoxes; i++)
3411	{
3412	unsigned uDestOffset;
3413	unsigned cbSrcPitch;
3414	uint8_t *pBufferStart;
3415
3416	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));
3417	/* Apparently we're supposed to clip it (gmr test sample) */
3418	if (pBoxes[i].x + pBoxes[i].w > pMipLevel->size.width)
3419	pBoxes[i].w = pMipLevel->size.width - pBoxes[i].x;
3420	if (pBoxes[i].y + pBoxes[i].h > pMipLevel->size.height)
3421	pBoxes[i].h = pMipLevel->size.height - pBoxes[i].y;
3422	if (pBoxes[i].z + pBoxes[i].d > pMipLevel->size.depth)
3423	pBoxes[i].d = pMipLevel->size.depth - pBoxes[i].z;
3424
3425	if ( !pBoxes[i].w
3426	\|\| !pBoxes[i].h
3427	\|\| !pBoxes[i].d
3428	\|\| pBoxes[i].x > pMipLevel->size.width
3429	\|\| pBoxes[i].y > pMipLevel->size.height
3430	\|\| pBoxes[i].z > pMipLevel->size.depth)
3431	{
3432	Log(("Empty box; skip\n"));
3433	continue;
3434	}
3435
3436	uDestOffset = pBoxes[i].x * pSurface->cbBlock + pBoxes[i].y * pMipLevel->cbSurfacePitch + pBoxes[i].z * pMipLevel->size.height * pMipLevel->cbSurfacePitch;
3437	AssertReturn(uDestOffset + pBoxes[i].w * pSurface->cbBlock * pBoxes[i].h * pBoxes[i].d <= pMipLevel->cbSurface, VERR_INTERNAL_ERROR);
3438
3439	cbSrcPitch = (guest.pitch == 0) ? pBoxes[i].w * pSurface->cbBlock : guest.pitch;
3440	#ifdef MANUAL_FLIP_SURFACE_DATA
3441	pBufferStart = (uint8_t *)pMipLevel->pSurfaceData
3442	+ pBoxes[i].x * pSurface->cbBlock
3443	+ pMipLevel->cbSurface - pBoxes[i].y * pMipLevel->cbSurfacePitch
3444	- pMipLevel->cbSurfacePitch; /* flip image during copy */
3445	#else
3446	pBufferStart = (uint8_t *)pMipLevel->pSurfaceData + uDestOffset;
3447	#endif
3448	rc = vmsvgaGMRTransfer(pThis,
3449	transfer,
3450	pBufferStart,
3451	#ifdef MANUAL_FLIP_SURFACE_DATA
3452	-(int32_t)pMipLevel->cbSurfacePitch,
3453	#else
3454	(int32_t)pMipLevel->cbSurfacePitch,
3455	#endif
3456	guest.ptr,
3457	pBoxes[i].srcx * pSurface->cbBlock + (pBoxes[i].srcy + pBoxes[i].srcz * pBoxes[i].h) * cbSrcPitch,
3458	cbSrcPitch,
3459	pBoxes[i].w * pSurface->cbBlock,
3460	pBoxes[i].d * pBoxes[i].h);
3461
3462	Log4(("first line:\n%.*Rhxd\n", pMipLevel->cbSurface, pMipLevel->pSurfaceData));
3463
3464	AssertRC(rc);
3465	}
3466	pSurface->pMipmapLevels[host.mipmap].fDirty = true;
3467	pSurface->fDirty = true;
3468	}
3469	else
3470	{
3471	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
3472	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
3473	#else
3474	/* @todo stricter checks for associated context */
3475	uint32_t cid = pSurface->idAssociatedContext;
3476	if ( cid >= pState->cContexts
3477	\|\| pState->papContexts[cid]->id != cid)
3478	{
3479	Log(("vmsvga3dSurfaceDMA invalid context id (%x - %x)!\n", cid, (cid >= pState->cContexts) ? -1 : pState->papContexts[cid]->id));
3480	AssertFailedReturn(VERR_INVALID_PARAMETER);
3481	}
3482	PVMSVGA3DCONTEXT pContext = pState->papContexts[cid];
3483	#endif
3484	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3485
3486	for (unsigned i = 0; i < cCopyBoxes; i++)
3487	{
3488	bool fVertex = false;
3489	unsigned cbSrcPitch;
3490
3491	/* Apparently we're supposed to clip it (gmr test sample) */
3492	if (pBoxes[i].x + pBoxes[i].w > pMipLevel->size.width)
3493	pBoxes[i].w = pMipLevel->size.width - pBoxes[i].x;
3494	if (pBoxes[i].y + pBoxes[i].h > pMipLevel->size.height)
3495	pBoxes[i].h = pMipLevel->size.height - pBoxes[i].y;
3496	if (pBoxes[i].z + pBoxes[i].d > pMipLevel->size.depth)
3497	pBoxes[i].d = pMipLevel->size.depth - pBoxes[i].z;
3498
3499	Assert((pBoxes[i].d == 1 \|\| pBoxes[i].d == 0) && pBoxes[i].z == 0);
3500
3501	if ( !pBoxes[i].w
3502	\|\| !pBoxes[i].h
3503	\|\| pBoxes[i].x > pMipLevel->size.width
3504	\|\| pBoxes[i].y > pMipLevel->size.height)
3505	{
3506	Log(("Empty box; skip\n"));
3507	continue;
3508	}
3509
3510	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));
3511
3512	cbSrcPitch = (guest.pitch == 0) ? pBoxes[i].w * pSurface->cbBlock : guest.pitch;
3513
3514	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))
3515	{
3516	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
3517	case SVGA3D_SURFACE_HINT_TEXTURE:
3518	case SVGA3D_SURFACE_HINT_RENDERTARGET:
3519	{
3520	uint32_t cbSurfacePitch;
3521	uint8_t pDoubleBuffer, pBufferStart;
3522	unsigned uDestOffset = 0;
3523
3524	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
3525	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
3526
3527	if (transfer == SVGA3D_READ_HOST_VRAM)
3528	{
3529	GLint activeTexture;
3530
3531	/* Must bind texture to the current context in order to read it. */
3532	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
3533	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3534
3535	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
3536	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3537
3538	/* Set row length and alignment of the input data. */
3539	VMSVGAPACKPARAMS SavedParams;
3540	vmsvga3dSetPackParams(pState, pContext, pSurface, &SavedParams);
3541
3542	glGetTexImage(GL_TEXTURE_2D,
3543	host.mipmap,
3544	pSurface->formatGL,
3545	pSurface->typeGL,
3546	pDoubleBuffer);
3547	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3548
3549	vmsvga3dRestorePackParams(pState, pContext, pSurface, &SavedParams);
3550
3551	/* Restore the old active texture. */
3552	glBindTexture(GL_TEXTURE_2D, activeTexture);
3553	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3554
3555	uDestOffset = pBoxes[i].x * pSurface->cbBlock + pBoxes[i].y * pMipLevel->cbSurfacePitch;
3556	AssertReturnStmt( uDestOffset + pBoxes[i].w * pSurface->cbBlock + (pBoxes[i].h - 1) * pMipLevel->cbSurfacePitch
3557	<= pMipLevel->cbSurface,
3558	RTMemFree(pDoubleBuffer),
3559	VERR_INTERNAL_ERROR);
3560
3561	cbSurfacePitch = pMipLevel->cbSurfacePitch;
3562
3563	#ifdef MANUAL_FLIP_SURFACE_DATA
3564	pBufferStart = pDoubleBuffer
3565	+ pBoxes[i].x * pSurface->cbBlock
3566	+ pMipLevel->cbSurface - pBoxes[i].y * cbSurfacePitch
3567	- cbSurfacePitch; /* flip image during copy */
3568	#else
3569	pBufferStart = pDoubleBuffer + uDestOffset;
3570	#endif
3571	}
3572	else
3573	{
3574	cbSurfacePitch = pBoxes[i].w * pSurface->cbBlock;
3575	#ifdef MANUAL_FLIP_SURFACE_DATA
3576	pBufferStart = pDoubleBuffer + cbSurfacePitch * pBoxes[i].h - cbSurfacePitch; /* flip image during copy */
3577	#else
3578	pBufferStart = pDoubleBuffer;
3579	#endif
3580	}
3581
3582	rc = vmsvgaGMRTransfer(pThis,
3583	transfer,
3584	pBufferStart,
3585	#ifdef MANUAL_FLIP_SURFACE_DATA
3586	-(int32_t)cbSurfacePitch,
3587	#else
3588	(int32_t)cbSurfacePitch,
3589	#endif
3590	guest.ptr,
3591	pBoxes[i].srcx * pSurface->cbBlock + pBoxes[i].srcy * cbSrcPitch,
3592	cbSrcPitch,
3593	pBoxes[i].w * pSurface->cbBlock,
3594	pBoxes[i].h);
3595	AssertRC(rc);
3596
3597	/* Update the opengl surface data. */
3598	if (transfer == SVGA3D_WRITE_HOST_VRAM)
3599	{
3600	GLint activeTexture = 0;
3601
3602	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
3603	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3604
3605	/* Must bind texture to the current context in order to change it. */
3606	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
3607	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3608
3609	Log(("vmsvga3dSurfaceDMA: copy texture mipmap level %d (pitch %x)\n", host.mipmap, pMipLevel->cbSurfacePitch));
3610
3611	/* Set row length and alignment of the input data. */
3612	VMSVGAPACKPARAMS SavedParams;
3613	vmsvga3dSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
3614
3615	glTexSubImage2D(GL_TEXTURE_2D,
3616	host.mipmap,
3617	pBoxes[i].x,
3618	pBoxes[i].y,
3619	pBoxes[i].w,
3620	pBoxes[i].h,
3621	pSurface->formatGL,
3622	pSurface->typeGL,
3623	pDoubleBuffer);
3624
3625	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3626
3627	/* Restore old values. */
3628	vmsvga3dRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
3629
3630	/* Restore the old active texture. */
3631	glBindTexture(GL_TEXTURE_2D, activeTexture);
3632	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3633	}
3634
3635	Log4(("first line:\n%.Rhxd\n", pBoxes[i].w pSurface->cbBlock, pDoubleBuffer));
3636
3637	/* Free the double buffer. */
3638	RTMemFree(pDoubleBuffer);
3639	break;
3640	}
3641
3642	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
3643	AssertFailed(); /* @todo */
3644	break;
3645
3646	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
3647	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
3648	{
3649	Assert(pBoxes[i].h == 1);
3650
3651	VMSVGA3D_CLEAR_GL_ERRORS();
3652	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
3653	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
3654	{
3655	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
3656	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
3657	if (RT_LIKELY(pbData != NULL))
3658	{
3659	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
3660	GLint cbStrictBufSize;
3661	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
3662	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
3663	# ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
3664	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
3665	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
3666	# else
3667	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
3668	("cbStrictBufSize=%#x cbSurface=%#x isAssociatedContext=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pSurface->idAssociatedContext, pContext->id));
3669	# endif
3670	#endif
3671
3672	unsigned offDst = pBoxes[i].x * pSurface->cbBlock + pBoxes[i].y * pMipLevel->cbSurfacePitch;
3673	if (RT_LIKELY( offDst + pBoxes[i].w * pSurface->cbBlock + (pBoxes[i].h - 1) * pMipLevel->cbSurfacePitch
3674	<= pMipLevel->cbSurface))
3675	{
3676	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n", (fVertex) ? "vertex" : "index",
3677	pBoxes[i].x, pBoxes[i].y, pBoxes[i].x + pBoxes[i].w, pBoxes[i].y + pBoxes[i].h));
3678
3679	rc = vmsvgaGMRTransfer(pThis,
3680	transfer,
3681	pbData + offDst,
3682	pMipLevel->cbSurfacePitch,
3683	guest.ptr,
3684	pBoxes[i].srcx * pSurface->cbBlock + pBoxes[i].srcy * cbSrcPitch,
3685	cbSrcPitch,
3686	pBoxes[i].w * pSurface->cbBlock,
3687	pBoxes[i].h);
3688	AssertRC(rc);
3689
3690	Log4(("first line:\n%.*Rhxd\n", cbSrcPitch, pbData));
3691	}
3692	else
3693	{
3694	AssertFailed();
3695	rc = VERR_INTERNAL_ERROR;
3696	}
3697
3698	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
3699	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3700	}
3701	else
3702	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
3703	}
3704	else
3705	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
3706	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
3707	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3708	break;
3709	}
3710
3711	default:
3712	AssertFailed();
3713	break;
3714	}
3715	}
3716	}
3717	return rc;
3718	}
3719
3720	int vmsvga3dSurfaceBlitToScreen(PVGASTATE pThis, uint32_t dest, SVGASignedRect destRect, SVGA3dSurfaceImageId src, SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *pRect)
3721	{
3722	/* Requires SVGA_FIFO_CAP_SCREEN_OBJECT support */
3723	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));
3724	for (uint32_t i = 0; i < cRects; i++)
3725	{
3726	Log(("vmsvga3dSurfaceBlitToScreen: clipping rect %d (%d,%d)(%d,%d)\n", i, pRect[i].left, pRect[i].top, pRect[i].right, pRect[i].bottom));
3727	}
3728
3729	/* @todo Only screen 0 for now. */
3730	AssertReturn(dest == 0, VERR_INTERNAL_ERROR);
3731	AssertReturn(src.mipmap == 0 && src.face == 0, VERR_INVALID_PARAMETER);
3732	/* @todo scaling */
3733	AssertReturn(destRect.right - destRect.left == srcRect.right - srcRect.left && destRect.bottom - destRect.top == srcRect.bottom - srcRect.top, VERR_INVALID_PARAMETER);
3734
3735	if (cRects == 0)
3736	{
3737	/* easy case; no clipping */
3738	SVGA3dCopyBox box;
3739	SVGA3dGuestImage dst;
3740
3741	box.x = destRect.left;
3742	box.y = destRect.top;
3743	box.z = 0;
3744	box.w = destRect.right - destRect.left;
3745	box.h = destRect.bottom - destRect.top;
3746	box.d = 1;
3747	box.srcx = srcRect.left;
3748	box.srcy = srcRect.top;
3749	box.srcz = 0;
3750
3751	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
3752	dst.ptr.offset = 0;
3753	dst.pitch = pThis->svga.cbScanline;
3754
3755	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
3756	AssertRCReturn(rc, rc);
3757
3758	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
3759	return VINF_SUCCESS;
3760	}
3761	else
3762	{
3763	SVGA3dGuestImage dst;
3764	SVGA3dCopyBox box;
3765
3766	box.srcz = 0;
3767	box.z = 0;
3768	box.d = 1;
3769
3770	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
3771	dst.ptr.offset = 0;
3772	dst.pitch = pThis->svga.cbScanline;
3773
3774	/* @todo merge into one SurfaceDMA call */
3775	for (uint32_t i = 0; i < cRects; i++)
3776	{
3777	/* The clipping rectangle is relative to the top-left corner of srcRect & destRect. Adjust here. */
3778	box.srcx = srcRect.left + pRect[i].left;
3779	box.srcy = srcRect.top + pRect[i].top;
3780
3781	box.x = pRect[i].left + destRect.left;
3782	box.y = pRect[i].top + destRect.top;
3783	box.z = 0;
3784	box.w = pRect[i].right - pRect[i].left;
3785	box.h = pRect[i].bottom - pRect[i].top;
3786
3787	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
3788	AssertRCReturn(rc, rc);
3789
3790	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
3791	}
3792
3793	return VINF_SUCCESS;
3794	}
3795	}
3796
3797	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
3798	{
3799	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3800	PVMSVGA3DSURFACE pSurface;
3801	int rc = VINF_SUCCESS;
3802	PVMSVGA3DCONTEXT pContext;
3803	uint32_t cid;
3804	GLint activeTexture = 0;
3805
3806	AssertReturn(pState, VERR_NO_MEMORY);
3807	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
3808	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
3809
3810	pSurface = pState->papSurfaces[sid];
3811	#ifndef VMSVGA3D_OGL_WITH_SHARED_CTX
3812	AssertReturn(pSurface->idAssociatedContext != SVGA3D_INVALID_ID, VERR_INTERNAL_ERROR);
3813	#endif
3814
3815	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
3816	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
3817	pSurface->autogenFilter = filter;
3818
3819	Log(("vmsvga3dGenerateMipmaps: sid=%x filter=%d\n", sid, filter));
3820
3821	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
3822	cid = SVGA3D_INVALID_ID;
3823	pContext = &pState->SharedCtx;
3824	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3825	#else
3826	/* @todo stricter checks for associated context */
3827	cid = pSurface->idAssociatedContext;
3828
3829	if ( cid >= pState->cContexts
3830	\|\| pState->papContexts[cid]->id != cid)
3831	{
3832	Log(("vmsvga3dGenerateMipmaps invalid context id!\n"));
3833	return VERR_INVALID_PARAMETER;
3834	}
3835	pContext = pState->papContexts[cid];
3836	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3837	#endif
3838
3839	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
3840	{
3841	/* Unknown surface type; turn it into a texture. */
3842	Log(("vmsvga3dGenerateMipmaps: unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->flags, pSurface->format));
3843	rc = vmsvga3dCreateTexture(pState, pContext, cid, pSurface);
3844	AssertRCReturn(rc, rc);
3845	}
3846	else
3847	{
3848	/* @todo new filter */
3849	AssertFailed();
3850	}
3851
3852	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
3853	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3854
3855	/* Must bind texture to the current context in order to change it. */
3856	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
3857	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3858
3859	/* Generate the mip maps. */
3860	pState->ext.glGenerateMipmap(GL_TEXTURE_2D);
3861	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3862
3863	/* Restore the old texture. */
3864	glBindTexture(GL_TEXTURE_2D, activeTexture);
3865	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3866
3867	return VINF_SUCCESS;
3868	}
3869
3870	int vmsvga3dCommandPresent(PVGASTATE pThis, uint32_t sid, uint32_t cRects, SVGA3dCopyRect *pRect)
3871	{
3872	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3873	PVMSVGA3DSURFACE pSurface;
3874	int rc = VINF_SUCCESS;
3875	PVMSVGA3DCONTEXT pContext;
3876	uint32_t cid;
3877
3878	AssertReturn(pState, VERR_NO_MEMORY);
3879	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
3880	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
3881
3882	pSurface = pState->papSurfaces[sid];
3883	#ifndef VMSVGA3D_OGL_WITH_SHARED_CTX
3884	AssertReturn(pSurface->idAssociatedContext != SVGA3D_INVALID_ID, VERR_INTERNAL_ERROR);
3885	#endif
3886
3887	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
3888	/* @todo stricter checks for associated context */
3889	Log(("vmsvga3dCommandPresent: sid=%x cRects=%d\n", sid, cRects));
3890	for (uint32_t i=0; i < cRects; i++)
3891	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));
3892
3893	pContext = &pState->SharedCtx;
3894	# ifdef VMSVGA3D_OGL_WITH_SHARED_CTX_EXPERIMENT_1
3895	if ( pSurface->idWeakContextAssociation < pState->cContexts
3896	&& pState->papContexts[pSurface->idWeakContextAssociation]->id == pSurface->idWeakContextAssociation)
3897	pContext = pState->papContexts[pSurface->idWeakContextAssociation];
3898	# endif
3899	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3900	cid = pContext->id;
3901	#else
3902	/* @todo stricter checks for associated context */
3903	cid = pSurface->idAssociatedContext;
3904	Log(("vmsvga3dCommandPresent: sid=%x cRects=%d cid=%x\n", sid, cRects, cid));
3905	for (uint32_t i=0; i < cRects; i++)
3906	{
3907	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));
3908	}
3909
3910	if ( cid >= pState->cContexts
3911	\|\| pState->papContexts[cid]->id != cid)
3912	{
3913	Log(("vmsvga3dCommandPresent invalid context id!\n"));
3914	return VERR_INVALID_PARAMETER;
3915	}
3916	pContext = pState->papContexts[cid];
3917	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3918	#endif
3919	VMSVGA3D_CLEAR_GL_ERRORS();
3920
3921	/*
3922	* Source surface different size?
3923	*/
3924	RTRECT2 srcViewPort;
3925	if ( pSurface->pMipmapLevels[0].size.width != pThis->svga.uWidth
3926	\|\| pSurface->pMipmapLevels[0].size.height != pThis->svga.uHeight)
3927	{
3928	float xMultiplier = (float)pSurface->pMipmapLevels[0].size.width / (float)pThis->svga.uWidth;
3929	float yMultiplier = (float)pSurface->pMipmapLevels[0].size.height / (float)pThis->svga.uHeight;
3930
3931	LogFlow(("size (%d vs %d) (%d vs %d) multiplier (%d,%d)/100\n", pSurface->pMipmapLevels[0].size.width, pThis->svga.uWidth,
3932	pSurface->pMipmapLevels[0].size.height, pThis->svga.uHeight, (int)(xMultiplier * 100.0), (int)(yMultiplier * 100.0)));
3933
3934	srcViewPort.x = (uint32_t)((float)pThis->svga.viewport.x * xMultiplier);
3935	srcViewPort.y = (uint32_t)((float)pThis->svga.viewport.y * yMultiplier);
3936	srcViewPort.cx = (uint32_t)((float)pThis->svga.viewport.cx * xMultiplier);
3937	srcViewPort.cy = (uint32_t)((float)pThis->svga.viewport.cy * yMultiplier);
3938	}
3939	else
3940	{
3941	srcViewPort.x = pThis->svga.viewport.x;
3942	srcViewPort.y = pThis->svga.viewport.y;
3943	srcViewPort.cx = pThis->svga.viewport.cx;
3944	srcViewPort.cy = pThis->svga.viewport.cy;
3945	}
3946	RTRECT SrcViewPortRect;
3947	SrcViewPortRect.xLeft = srcViewPort.x;
3948	SrcViewPortRect.xRight = srcViewPort.x + srcViewPort.cx;
3949	SrcViewPortRect.yBottom = srcViewPort.y;
3950	SrcViewPortRect.yTop = srcViewPort.y + srcViewPort.cy;
3951
3952
3953	#ifndef RT_OS_DARWIN /* blit-cube fails in this path... */
3954	/*
3955	* Note! this path is slightly faster than the glBlitFrameBuffer path below.
3956	*/
3957	SVGA3dCopyRect rect;
3958	uint32_t oldVShader, oldPShader;
3959	GLint oldTextureId;
3960
3961	if (cRects == 0)
3962	{
3963	rect.x = rect.y = rect.srcx = rect.srcy = 0;
3964	rect.w = pSurface->pMipmapLevels[0].size.width;
3965	rect.h = pSurface->pMipmapLevels[0].size.height;
3966	pRect = &rect;
3967	cRects = 1;
3968	}
3969
3970	//glPushAttrib(GL_ENABLE_BIT \| GL_DEPTH_BUFFER_BIT \| GL_COLOR_BUFFER_BIT \| GL_VIEWPORT_BIT);
3971
3972	#if 0
3973	glDisable(GL_CULL_FACE);
3974	glDisable(GL_BLEND);
3975	glDisable(GL_ALPHA_TEST);
3976	glDisable(GL_SCISSOR_TEST);
3977	glDisable(GL_STENCIL_TEST);
3978	glEnable(GL_DEPTH_TEST);
3979	glDepthFunc(GL_ALWAYS);
3980	glDepthMask(GL_TRUE);
3981	glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
3982	glViewport(0, 0, pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height);
3983	#endif
3984
3985	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &oldTextureId), pState, pContext);
3986
3987	oldVShader = pContext->state.shidVertex;
3988	oldPShader = pContext->state.shidPixel;
3989	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, SVGA_ID_INVALID);
3990	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, SVGA_ID_INVALID);
3991
3992	/* Flush shader changes. */
3993	if (pContext->pShaderContext)
3994	ShaderUpdateState(pContext->pShaderContext, 0);
3995
3996	/* Activate the read and draw framebuffer objects. */
3997	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer), pState, pContext);
3998	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */), pState, pContext);
3999
4000	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glActiveTexture(GL_TEXTURE0), pState, pContext);
4001	VMSVGA3D_ASSERT_GL_CALL(glEnable(GL_TEXTURE_2D), pState, pContext);;
4002	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture), pState, pContext);
4003
4004	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR), pState, pContext);
4005	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR), pState, pContext);;
4006
4007	#if 0
4008	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP), pState, pContext);;
4009	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP), pState, pContext);;
4010	#endif
4011
4012	/* Reset the transformation matrices. */
4013	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
4014	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
4015	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
4016	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
4017	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
4018	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
4019	VMSVGA3D_ASSERT_GL_CALL(glScalef(1.0f, -1.0f, 1.0f), pState, pContext);
4020	VMSVGA3D_ASSERT_GL_CALL(glOrtho(0, pThis->svga.uWidth, pThis->svga.uHeight, 0, 0.0, -1.0), pState, pContext);
4021
4022	for (uint32_t i = 0; i < cRects; i++)
4023	{
4024	float left, right, top, bottom; /* Texture coordinates */
4025	int vertexLeft, vertexRight, vertexTop, vertexBottom;
4026
4027	pRect[i].srcx = RT_MAX(pRect[i].srcx, (uint32_t)RT_MAX(srcViewPort.x, 0));
4028	pRect[i].srcy = RT_MAX(pRect[i].srcy, (uint32_t)RT_MAX(srcViewPort.y, 0));
4029	pRect[i].x = RT_MAX(pRect[i].x, pThis->svga.viewport.x) - pThis->svga.viewport.x;
4030	pRect[i].y = RT_MAX(pRect[i].y, pThis->svga.viewport.y) - pThis->svga.viewport.y;
4031	pRect[i].w = pThis->svga.viewport.cx;
4032	pRect[i].h = pThis->svga.viewport.cy;
4033
4034	if ( pRect[i].x + pRect[i].w <= pThis->svga.viewport.x
4035	\|\| pThis->svga.viewport.x + pThis->svga.viewport.cx <= pRect[i].x
4036	\|\| pRect[i].y + pRect[i].h <= pThis->svga.viewport.y
4037	\|\| pThis->svga.viewport.y + pThis->svga.viewport.cy <= pRect[i].y)
4038	{
4039	/* Intersection is empty; skip */
4040	continue;
4041	}
4042
4043	left = pRect[i].srcx;
4044	right = pRect[i].srcx + pRect[i].w;
4045	top = pRect[i].srcy + pRect[i].h;
4046	bottom = pRect[i].srcy;
4047
4048	left /= pSurface->pMipmapLevels[0].size.width;
4049	right /= pSurface->pMipmapLevels[0].size.width;
4050	top /= pSurface->pMipmapLevels[0].size.height;
4051	bottom /= pSurface->pMipmapLevels[0].size.height;
4052
4053	vertexLeft = pRect[i].x;
4054	vertexRight = pRect[i].x + pRect[i].w;
4055	vertexTop = ((uint32_t)pThis->svga.uHeight >= pRect[i].y + pRect[i].h) ? pThis->svga.uHeight - pRect[i].y - pRect[i].h : 0;
4056	vertexBottom = pThis->svga.uHeight - pRect[i].y;
4057
4058	Log(("view port (%d,%d)(%d,%d)\n", srcViewPort.x, srcViewPort.y, srcViewPort.cx, srcViewPort.cy));
4059	Log(("vertex (%d,%d) (%d,%d) (%d,%d) (%d,%d)\n", vertexLeft, vertexBottom, vertexLeft, vertexTop, vertexRight, vertexTop, vertexRight, vertexBottom));
4060	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)));
4061
4062	glBegin(GL_QUADS);
4063
4064	/* bottom left */
4065	glTexCoord2f(left, bottom);
4066	glVertex2i(vertexLeft, vertexBottom);
4067
4068	/* top left */
4069	glTexCoord2f(left, top);
4070	glVertex2i(vertexLeft, vertexTop);
4071
4072	/* top right */
4073	glTexCoord2f(right, top);
4074	glVertex2i(vertexRight, vertexTop);
4075
4076	/* bottom right */
4077	glTexCoord2f(right, bottom);
4078	glVertex2i(vertexRight, vertexBottom);
4079
4080	VMSVGA3D_ASSERT_GL_CALL(glEnd(), pState, pContext);
4081	}
4082
4083	/* Restore old settings. */
4084	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
4085	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
4086	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
4087	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
4088
4089	//VMSVGA3D_ASSERT_GL_CALL(glPopAttrib(), pState, pContext);
4090
4091	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, oldTextureId), pState, pContext);
4092	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, oldVShader);
4093	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, oldPShader);
4094
4095	#else
4096	/*
4097	* glBlitFramebuffer variant.
4098	*/
4099	/* Activate the read and draw framebuffer objects. */
4100	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
4101	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
4102	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */);
4103	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
4104
4105	/* Bind the source objects to the right place. */
4106	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurface->oglId.texture, 0 /* level 0 */);
4107	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
4108
4109	/* Blit the surface rectangle(s) to the back buffer. */
4110	if (cRects == 0)
4111
4112	{
4113	Log(("view port (%d,%d)(%d,%d)\n", srcViewPort.x, srcViewPort.y, srcViewPort.cx, srcViewPort.cy));
4114	pState->ext.glBlitFramebuffer(srcViewPort.x,
4115	srcViewPort.y,
4116	srcViewPort.x + srcViewPort.cx, /* exclusive. */
4117	srcViewPort.y + srcViewPort.cy, /* exclusive. (reverse to flip the image) */
4118	0,
4119	pThis->svga.viewport.cy, /* exclusive. */
4120	pThis->svga.viewport.cx, /* exclusive. */
4121	0,
4122	GL_COLOR_BUFFER_BIT,
4123	GL_LINEAR);
4124	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
4125	}
4126	else
4127	{
4128	for (uint32_t i = 0; i < cRects; i++)
4129	{
4130	# ifdef RT_OS_DARWIN
4131	/* This works better... */
4132	RTRECT SrcRect;
4133	SrcRect.xLeft = pRect[i].srcx;
4134	SrcRect.xRight = pRect[i].srcx + pRect[i].w;
4135	SrcRect.yBottom = pRect[i].srcy;
4136	SrcRect.yTop = pRect[i].srcy + pRect[i].h;
4137	RTRECT DstRect; /* y flipped wrt source */
4138	DstRect.xLeft = pRect[i].x;
4139	DstRect.xRight = pRect[i].x + pRect[i].w;
4140	DstRect.yBottom = pRect[i].y + pRect[i].h;
4141	DstRect.yTop = pRect[i].y;
4142
4143	if (SrcRect.xLeft < SrcViewPortRect.xLeft)
4144	{
4145	DstRect.xLeft += SrcViewPortRect.xLeft - SrcRect.xLeft;
4146	SrcRect.xLeft = SrcViewPortRect.xLeft;
4147	}
4148	else if (SrcRect.xLeft >= SrcViewPortRect.xRight)
4149	continue;
4150
4151	if (SrcRect.xRight > SrcViewPortRect.xRight)
4152	{
4153	DstRect.xRight -= SrcViewPortRect.xRight - SrcRect.xRight;
4154	SrcRect.xRight = SrcViewPortRect.xRight;
4155	}
4156	else if (SrcRect.xRight <= SrcViewPortRect.xLeft)
4157	continue;
4158
4159	if (SrcRect.xRight <= SrcRect.xLeft)
4160	continue;
4161
4162	if (SrcRect.yBottom < SrcViewPortRect.yBottom)
4163	{
4164	DstRect.yTop += SrcViewPortRect.yBottom - SrcRect.yBottom;
4165	SrcRect.yBottom = SrcViewPortRect.yBottom;
4166	}
4167	else if (SrcRect.yBottom >= SrcViewPortRect.yTop)
4168	continue;
4169
4170	if (SrcRect.yTop > SrcViewPortRect.yTop)
4171	{
4172	DstRect.yBottom -= SrcViewPortRect.yTop - SrcRect.yTop;
4173	SrcRect.yTop = SrcViewPortRect.yTop;
4174	}
4175	else if (SrcRect.yTop <= SrcViewPortRect.yBottom)
4176	continue;
4177
4178	if (SrcRect.yTop <= SrcRect.yBottom)
4179	continue;
4180
4181	Log(("SrcRect: (%d,%d)(%d,%d) DstRect: (%d,%d)(%d,%d)\n",
4182	SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
4183	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop));
4184	pState->ext.glBlitFramebuffer(SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
4185	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop,
4186	GL_COLOR_BUFFER_BIT, GL_LINEAR);
4187
4188	# else
4189	if ( pRect[i].x + pRect[i].w <= pThis->svga.viewport.x
4190	\|\| pThis->svga.viewport.x + pThis->svga.viewport.cx <= pRect[i].x
4191	\|\| pRect[i].y + pRect[i].h <= pThis->svga.viewport.y
4192	\|\| pThis->svga.viewport.y + pThis->svga.viewport.cy <= pRect[i].y)
4193	{
4194	/* Intersection is empty; skip */
4195	continue;
4196	}
4197	pState->ext.glBlitFramebuffer(RT_MAX(pRect[i].srcx, srcViewPort.x),
4198	pSurface->pMipmapLevels[0].size.width - RT_MAX(pRect[i].srcy, srcViewPort.y), /* exclusive. (reverse to flip the image) */
4199	RT_MIN(pRect[i].srcx + pRect[i].w, srcViewPort.x + srcViewPort.cx), /* exclusive. */
4200	pSurface->pMipmapLevels[0].size.width - RT_MIN(pRect[i].srcy + pRect[i].h, srcViewPort.y + srcViewPort.cy),
4201	RT_MAX(pRect[i].x, pThis->svga.viewport.x) - pThis->svga.viewport.x,
4202	pThis->svga.uHeight - (RT_MIN(pRect[i].y + pRect[i].h, pThis->svga.viewport.y + pThis->svga.viewport.cy) - pThis->svga.viewport.y), /* exclusive. */
4203	RT_MIN(pRect[i].x + pRect[i].w, pThis->svga.viewport.x + pThis->svga.viewport.cx) - pThis->svga.viewport.x, /* exclusive. */
4204	pThis->svga.uHeight - (RT_MAX(pRect[i].y, pThis->svga.viewport.y) - pThis->svga.viewport.y),
4205	GL_COLOR_BUFFER_BIT,
4206	GL_LINEAR);
4207	# endif
4208	}
4209	}
4210
4211	#endif
4212	#ifndef RT_OS_DARWIN /* darwin: later */
4213	/* Reset the frame buffer association - see below. */
4214	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer), pState, pContext);
4215	#endif
4216
4217	/*
4218	* Flip the front and back buffers.
4219	*/
4220	#ifdef RT_OS_WINDOWS
4221	BOOL ret = SwapBuffers(pContext->hdc);
4222	AssertMsg(ret, ("SwapBuffers failed with %d\n", GetLastError()));
4223	#elif defined(RT_OS_DARWIN)
4224	vmsvga3dCocoaSwapBuffers(pContext->cocoaView, pContext->cocoaContext);
4225	#else
4226	/* show the window if not already done */
4227	if (!pContext->fMapped)
4228	{
4229	XMapWindow(pState->display, pContext->window);
4230	pContext->fMapped = true;
4231	}
4232	/* now swap the buffers, i.e. display the rendering result */
4233	glXSwapBuffers(pState->display, pContext->window);
4234	#endif
4235
4236	#if defined(RT_OS_DARWIN)
4237	/*
4238	* Now we can reset the frame buffer association. Doing it earlier means no
4239	* output on darwin.
4240	*/
4241	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer), pState, pContext);
4242	#endif
4243	return VINF_SUCCESS;
4244	}
4245
4246	#ifdef RT_OS_LINUX
4247	/**
4248	* X11 event handling thread
4249	* @param ThreadSelf thread handle
4250	* @param pvUser pointer to pState structure
4251	* @returns VBox status code
4252	*/
4253	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD ThreadSelf, void *pvUser)
4254	{
4255	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
4256	while (!pState->bTerminate)
4257	{
4258	while (XPending(pState->display) > 0)
4259	{
4260	XEvent event;
4261	XNextEvent(pState->display, &event);
4262
4263	switch (event.type)
4264	{
4265	default:
4266	break;
4267	}
4268	}
4269	/* sleep for 16ms to not burn too many cycles */
4270	RTThreadSleep(16);
4271	}
4272	return VINF_SUCCESS;
4273	}
4274	#endif // RT_OS_LINUX
4275
4276
4277	/**
4278	* Create a new 3d context
4279	*
4280	* @returns VBox status code.
4281	* @param pThis VGA device instance data.
4282	* @param cid Context id
4283	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
4284	*/
4285	static int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
4286	{
4287	int rc;
4288	PVMSVGA3DCONTEXT pContext;
4289	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4290
4291	AssertReturn(pState, VERR_NO_MEMORY);
4292	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
4293	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
4294	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
4295	#else
4296	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
4297	#endif
4298	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
4299	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
4300	#endif
4301
4302	Log(("vmsvga3dContextDefine id %x\n", cid));
4303	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
4304	if (pState->idTestContext == SVGA_ID_INVALID)
4305	{
4306	pState->idTestContext = 207;
4307	rc = vmsvga3dContextDefine(pThis, pState->idTestContext);
4308	AssertRCReturn(rc, rc);
4309	}
4310	#endif
4311
4312	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
4313	if (cid == VMSVGA3D_SHARED_CTX_ID)
4314	pContext = &pState->SharedCtx;
4315	else
4316	#endif
4317	{
4318	if (cid >= pState->cContexts)
4319	{
4320	/* Grow the array. */
4321	uint32_t cNew = RT_ALIGN(cid + 15, 16);
4322	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
4323	AssertReturn(pvNew, VERR_NO_MEMORY);
4324	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
4325	while (pState->cContexts < cNew)
4326	{
4327	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
4328	AssertReturn(pContext, VERR_NO_MEMORY);
4329	pContext->id = SVGA3D_INVALID_ID;
4330	pState->papContexts[pState->cContexts++] = pContext;
4331	}
4332	}
4333	/* If one already exists with this id, then destroy it now. */
4334	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
4335	vmsvga3dContextDestroy(pThis, cid);
4336
4337	pContext = pState->papContexts[cid];
4338	}
4339
4340	/*
4341	* Find the shared context (necessary for sharing e.g. textures between contexts).
4342	*/
4343	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
4344	PVMSVGA3DCONTEXT pSharedCtx = NULL;
4345	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
4346	{
4347	pSharedCtx = &pState->SharedCtx;
4348	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
4349	{
4350	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
4351	AssertLogRelRCReturn(rc, rc);
4352	}
4353	}
4354	#else
4355	// TODO isn't this default on Linux since OpenGL 1.1?
4356	/* Find the first active context to share the display list with (necessary for sharing e.g. textures between contexts). */
4357	PVMSVGA3DCONTEXT pSharedCtx = NULL;
4358	for (uint32_t i = 0; i < pState->cContexts; i++)
4359	if ( pState->papContexts[i]->id != SVGA3D_INVALID_ID
4360	&& i != cid
4361	# ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
4362	&& pState->papContexts[i]->fOtherProfile == RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE)
4363	# endif
4364	)
4365	{
4366	Log(("Sharing display lists between cid=%d and cid=%d\n", pContext->id, i));
4367	pSharedCtx = pState->papContexts[i];
4368	break;
4369	}
4370	#endif
4371
4372	/*
4373	* Initialize the context.
4374	*/
4375	memset(pContext, 0, sizeof(*pContext));
4376	pContext->id = cid;
4377	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTexture); i++)
4378	pContext->aSidActiveTexture[i] = SVGA3D_INVALID_ID;
4379
4380	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
4381	pContext->state.shidVertex = SVGA3D_INVALID_ID;
4382	pContext->state.shidPixel = SVGA3D_INVALID_ID;
4383	pContext->idFramebuffer = OPENGL_INVALID_ID;
4384	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
4385	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
4386
4387	rc = ShaderContextCreate(&pContext->pShaderContext);
4388	AssertRCReturn(rc, rc);
4389
4390	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
4391	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
4392
4393	AssertReturn(pThis->svga.u64HostWindowId, VERR_INTERNAL_ERROR);
4394
4395	#ifdef RT_OS_WINDOWS
4396	/* Create a context window. */
4397	CREATESTRUCT cs;
4398	cs.lpCreateParams = NULL;
4399	cs.dwExStyle = WS_EX_NOACTIVATE \| WS_EX_NOPARENTNOTIFY \| WS_EX_TRANSPARENT;
4400	# ifdef DEBUG_GFX_WINDOW
4401	cs.lpszName = (char *)RTMemAllocZ(256);
4402	RTStrPrintf((char *)cs.lpszName, 256, "Context %d OpenGL Window", cid);
4403	# else
4404	cs.lpszName = NULL;
4405	# endif
4406	cs.lpszClass = 0;
4407	# ifdef DEBUG_GFX_WINDOW
4408	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_VISIBLE \| WS_CAPTION;
4409	# else
4410	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_DISABLED \| WS_CHILD \| WS_VISIBLE;
4411	# endif
4412	cs.x = 0;
4413	cs.y = 0;
4414	cs.cx = pThis->svga.uWidth;
4415	cs.cy = pThis->svga.uHeight;
4416	cs.hwndParent = (HWND)pThis->svga.u64HostWindowId;
4417	cs.hMenu = NULL;
4418	cs.hInstance = pState->hInstance;
4419
4420	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_CREATEWINDOW, (WPARAM)&pContext->hwnd, (LPARAM)&cs);
4421	AssertRCReturn(rc, rc);
4422
4423	pContext->hdc = GetDC(pContext->hwnd);
4424	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
4425
4426	PIXELFORMATDESCRIPTOR pfd = {
4427	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
4428	1, /* version number */
4429	PFD_DRAW_TO_WINDOW \| /* support window */
4430	PFD_DOUBLEBUFFER \| /* support double buffering */
4431	PFD_SUPPORT_OPENGL, /* support OpenGL */
4432	PFD_TYPE_RGBA, /* RGBA type */
4433	24, /* 24-bit color depth */
4434	0, 0, 0, 0, 0, 0, /* color bits ignored */
4435	8, /* alpha buffer */
4436	0, /* shift bit ignored */
4437	0, /* no accumulation buffer */
4438	0, 0, 0, 0, /* accum bits ignored */
4439	16, /* set depth buffer */
4440	16, /* set stencil buffer */
4441	0, /* no auxiliary buffer */
4442	PFD_MAIN_PLANE, /* main layer */
4443	0, /* reserved */
4444	0, 0, 0 /* layer masks ignored */
4445	};
4446	int pixelFormat;
4447	BOOL ret;
4448
4449	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
4450	/* @todo is this really necessary?? */
4451	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
4452	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
4453
4454	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
4455	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
4456
4457	pContext->hglrc = wglCreateContext(pContext->hdc);
4458	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
4459
4460	if (pSharedCtx)
4461	{
4462	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
4463	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
4464	}
4465
4466	#elif defined(RT_OS_DARWIN)
4467	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
4468
4469	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
4470	NativeNSViewRef pHostView = (NativeNSViewRef)pThis->svga.u64HostWindowId;
4471	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
4472	# if defined(VMSVGA3D_OGL_WITH_SHARED_CTX) && !defined(VMSVGA3D_OGL_WITH_SHARED_CTX_EXPERIMENT_1) /* Only attach one subview, the one we'll present in. */
4473	pSharedCtx ? NULL : pHostView, /** @todo screen objects and stuff. */
4474	# else
4475	pHostView,
4476	# endif
4477	pThis->svga.uWidth, pThis->svga.uHeight,
4478	pShareContext, pContext->fOtherProfile);
4479
4480	#else
4481	Window hostWindow = (Window)pThis->svga.u64HostWindowId;
4482
4483	if (pState->display == NULL)
4484	{
4485	/* get an X display and make sure we have glX 1.3 */
4486	pState->display = XOpenDisplay(0);
4487	Assert(pState->display);
4488	int glxMajor, glxMinor;
4489	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
4490	AssertMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
4491	/* start our X event handling thread */
4492	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
4493	if (RT_FAILURE(rc))
4494	{
4495	AssertMsgFailed(("%s: Async IO Thread creation for 3d window handling failed rc=%d\n", __FUNCTION__, rc));
4496	return rc;
4497	}
4498	}
4499	int attrib[] =
4500	{
4501	GLX_RGBA,
4502	GLX_RED_SIZE, 1,
4503	GLX_GREEN_SIZE, 1,
4504	GLX_BLUE_SIZE, 1,
4505	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
4506	GLX_DOUBLEBUFFER,
4507	None
4508	};
4509	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
4510	XSetWindowAttributes swa;
4511	swa.colormap = XCreateColormap(pState->display, XDefaultRootWindow(pState->display), vi->visual, AllocNone);
4512	swa.border_pixel = 0;
4513	swa.background_pixel = 0;
4514	swa.event_mask = StructureNotifyMask \| ExposureMask;
4515	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
4516	pContext->window = XCreateWindow(pState->display, hostWindow,//XDefaultRootWindow(pState->display),//hostWindow,
4517	0, 0, pThis->svga.uWidth, pThis->svga.uHeight,
4518	0, vi->depth, InputOutput,
4519	vi->visual, flags, &swa);
4520	AssertMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
4521	uint32_t cardinal_alpha = (uint32_t) (0.5 * (uint32_t)-1) ;
4522
4523	/* the window is hidden by default and only mapped when CommandPresent is executed on it */
4524
4525	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
4526	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
4527	AssertMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
4528	#endif
4529
4530	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4531
4532	/* NULL during the first PowerOn call. */
4533	if (pState->ext.glGenFramebuffers)
4534	{
4535	/* Create a framebuffer object for this context. */
4536	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
4537	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4538
4539	/* Bind the object to the framebuffer target. */
4540	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
4541	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4542
4543	/* Create read and draw framebuffer objects for this context. */
4544	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
4545	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4546
4547	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
4548	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4549
4550	}
4551	#if 0
4552	/* @todo move to shader lib!!! */
4553	/* Clear the screen */
4554	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4555
4556	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
4557	glClearIndex(0);
4558	glClearDepth(1);
4559	glClearStencil(0xffff);
4560	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
4561	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
4562	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
4563	if (pState->ext.glProvokingVertex)
4564	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
4565	/* @todo move to shader lib!!! */
4566	#endif
4567	return VINF_SUCCESS;
4568	}
4569
4570
4571	/**
4572	* Create a new 3d context
4573	*
4574	* @returns VBox status code.
4575	* @param pThis VGA device instance data.
4576	* @param cid Context id
4577	*/
4578	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
4579	{
4580	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
4581	}
4582
4583	/**
4584	* Destroys a 3d context.
4585	*
4586	* @returns VBox status code.
4587	* @param pThis VGA device instance data.
4588	* @param pContext The context to destroy.
4589	* @param cid Context id
4590	*/
4591	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
4592	{
4593	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4594	AssertReturn(pState, VERR_NO_MEMORY);
4595	AssertReturn(pContext, VERR_INVALID_PARAMETER);
4596	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
4597	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
4598
4599	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4600
4601	/* Destroy all leftover pixel shaders. */
4602	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
4603	{
4604	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
4605	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
4606	}
4607	if (pContext->paPixelShader)
4608	RTMemFree(pContext->paPixelShader);
4609
4610	/* Destroy all leftover vertex shaders. */
4611	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
4612	{
4613	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
4614	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
4615	}
4616	if (pContext->paVertexShader)
4617	RTMemFree(pContext->paVertexShader);
4618
4619	if (pContext->state.paVertexShaderConst)
4620	RTMemFree(pContext->state.paVertexShaderConst);
4621	if (pContext->state.paPixelShaderConst)
4622	RTMemFree(pContext->state.paPixelShaderConst);
4623
4624	if (pContext->pShaderContext)
4625	{
4626	int rc = ShaderContextDestroy(pContext->pShaderContext);
4627	AssertRC(rc);
4628	}
4629
4630	#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. */
4631	/* Check for all surfaces that are associated with this context to remove all dependencies */
4632	for (uint32_t sid = 0; sid < pState->cSurfaces; sid++)
4633	{
4634	PVMSVGA3DSURFACE pSurface = pState->papSurfaces[sid];
4635	if ( pSurface->idAssociatedContext == cid
4636	&& pSurface->id == sid)
4637	{
4638	int rc;
4639
4640	Log(("vmsvga3dContextDestroy: remove all dependencies for surface %x\n", sid));
4641
4642	uint32_t surfaceFlags = pSurface->flags;
4643	SVGA3dSurfaceFormat format = pSurface->format;
4644	SVGA3dSurfaceFace face[SVGA3D_MAX_SURFACE_FACES];
4645	uint32_t multisampleCount = pSurface->multiSampleCount;
4646	SVGA3dTextureFilter autogenFilter = pSurface->autogenFilter;
4647	SVGA3dSize *pMipLevelSize;
4648	uint32_t cFaces = pSurface->cFaces;
4649
4650	pMipLevelSize = (SVGA3dSize )RTMemAllocZ(pSurface->faces[0].numMipLevels pSurface->cFaces * sizeof(SVGA3dSize));
4651	AssertReturn(pMipLevelSize, VERR_NO_MEMORY);
4652
4653	for (uint32_t iFace = 0; iFace < pSurface->cFaces; iFace++)
4654	{
4655	for (uint32_t i = 0; i < pSurface->faces[0].numMipLevels; i++)
4656	{
4657	uint32_t idx = i + iFace * pSurface->faces[0].numMipLevels;
4658	memcpy(&pMipLevelSize[idx], &pSurface->pMipmapLevels[idx].size, sizeof(SVGA3dSize));
4659	}
4660	}
4661	memcpy(face, pSurface->faces, sizeof(pSurface->faces));
4662
4663	/* Recreate the surface with the original settings; destroys the contents, but that seems fairly safe since the context is also destroyed. */
4664	rc = vmsvga3dSurfaceDestroy(pThis, sid);
4665	AssertRC(rc);
4666
4667	rc = vmsvga3dSurfaceDefine(pThis, sid, surfaceFlags, format, face, multisampleCount, autogenFilter, face[0].numMipLevels * cFaces, pMipLevelSize);
4668	AssertRC(rc);
4669	}
4670	}
4671	#endif
4672
4673	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
4674	{
4675	/* Unbind the object from the framebuffer target. */
4676	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
4677	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4678	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
4679	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4680
4681	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
4682	{
4683	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
4684	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4685	}
4686	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
4687	{
4688	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
4689	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4690	}
4691	}
4692	#ifdef RT_OS_WINDOWS
4693	wglMakeCurrent(pContext->hdc, NULL);
4694	wglDeleteContext(pContext->hglrc);
4695	ReleaseDC(pContext->hwnd, pContext->hdc);
4696
4697	/* Destroy the window we've created. */
4698	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
4699	AssertRC(rc);
4700	#elif defined(RT_OS_DARWIN)
4701	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
4702	#elif defined(RT_OS_LINUX)
4703	glXMakeCurrent(pState->display, None, NULL);
4704	glXDestroyContext(pState->display, pContext->glxContext);
4705	XDestroyWindow(pState->display, pContext->window);
4706	#endif
4707
4708	memset(pContext, 0, sizeof(*pContext));
4709	pContext->id = SVGA3D_INVALID_ID;
4710
4711	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
4712	return VINF_SUCCESS;
4713	}
4714
4715	/**
4716	* Destroy an existing 3d context
4717	*
4718	* @returns VBox status code.
4719	* @param pThis VGA device instance data.
4720	* @param cid Context id
4721	*/
4722	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
4723	{
4724	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4725	AssertReturn(pState, VERR_WRONG_ORDER);
4726
4727	/*
4728	* Resolve the context and hand it to the common worker function.
4729	*/
4730	if ( cid < pState->cContexts
4731	&& pState->papContexts[cid]->id == cid)
4732	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
4733
4734	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
4735	return VINF_SUCCESS;
4736	}
4737
4738	/**
4739	* Worker for vmsvga3dChangeMode that resizes a context.
4740	*
4741	* @param pThis The VMSVGA state.
4742	* @param pContext The context.
4743	*/
4744	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext)
4745	{
4746	#ifdef RT_OS_WINDOWS
4747	CREATESTRUCT cs;
4748
4749	memset(&cs, 0, sizeof(cs));
4750	cs.cx = pThis->svga.uWidth;
4751	cs.cy = pThis->svga.uHeight;
4752
4753	/* Resize the window. */
4754	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_RESIZEWINDOW, (WPARAM)pContext->hwnd, (LPARAM)&cs);
4755	AssertRC(rc);
4756	#elif defined(RT_OS_DARWIN)
4757	vmsvga3dCocoaViewSetSize(pContext->cocoaView, pThis->svga.uWidth, pThis->svga.uHeight);
4758	#elif defined(RT_OS_LINUX)
4759	XWindowChanges wc;
4760	wc.width = pThis->svga.uWidth;
4761	wc.height = pThis->svga.uHeight;
4762	XConfigureWindow(pState->display, pContext->window, CWWidth \| CWHeight, &wc);
4763	#endif
4764	}
4765
4766	/* Handle resize */
4767	int vmsvga3dChangeMode(PVGASTATE pThis)
4768	{
4769	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4770	AssertReturn(pState, VERR_NO_MEMORY);
4771
4772	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
4773	/* Resize the shared context too. */
4774	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
4775	vmsvga3dChangeModeOneContext(pThis, &pState->SharedCtx);
4776	#endif
4777
4778	/* Resize all active contexts. */
4779	for (uint32_t i = 0; i < pState->cContexts; i++)
4780	{
4781	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
4782	if (pContext->id != SVGA3D_INVALID_ID)
4783	vmsvga3dChangeModeOneContext(pThis, pContext);
4784	}
4785
4786	return VINF_SUCCESS;
4787	}
4788
4789
4790	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
4791	{
4792	PVMSVGA3DCONTEXT pContext;
4793	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4794	AssertReturn(pState, VERR_NO_MEMORY);
4795	bool fModelViewChanged = false;
4796
4797	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
4798
4799	if ( cid >= pState->cContexts
4800	\|\| pState->papContexts[cid]->id != cid)
4801	{
4802	Log(("vmsvga3dSetTransform invalid context id!\n"));
4803	return VERR_INVALID_PARAMETER;
4804	}
4805	pContext = pState->papContexts[cid];
4806	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4807
4808	/* Save this matrix for vm state save/restore. */
4809	pContext->state.aTransformState[type].fValid = true;
4810	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
4811	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
4812
4813	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)));
4814	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)));
4815	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)));
4816	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)));
4817
4818	switch (type)
4819	{
4820	case SVGA3D_TRANSFORM_VIEW:
4821	/* View * World = Model View */
4822	glMatrixMode(GL_MODELVIEW);
4823	glLoadMatrixf(matrix);
4824	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
4825	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
4826	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4827	fModelViewChanged = true;
4828	break;
4829
4830	case SVGA3D_TRANSFORM_PROJECTION:
4831	{
4832	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix);
4833	AssertRCReturn(rc, rc);
4834	break;
4835	}
4836
4837	case SVGA3D_TRANSFORM_TEXTURE0:
4838	glMatrixMode(GL_TEXTURE);
4839	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4840	glLoadMatrixf(matrix);
4841	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4842	break;
4843
4844	case SVGA3D_TRANSFORM_TEXTURE1:
4845	case SVGA3D_TRANSFORM_TEXTURE2:
4846	case SVGA3D_TRANSFORM_TEXTURE3:
4847	case SVGA3D_TRANSFORM_TEXTURE4:
4848	case SVGA3D_TRANSFORM_TEXTURE5:
4849	case SVGA3D_TRANSFORM_TEXTURE6:
4850	case SVGA3D_TRANSFORM_TEXTURE7:
4851	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
4852	return VERR_INVALID_PARAMETER;
4853
4854	case SVGA3D_TRANSFORM_WORLD:
4855	/* View * World = Model View */
4856	glMatrixMode(GL_MODELVIEW);
4857	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
4858	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
4859	else
4860	glLoadIdentity();
4861	glMultMatrixf(matrix);
4862	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4863	fModelViewChanged = true;
4864	break;
4865
4866	case SVGA3D_TRANSFORM_WORLD1:
4867	case SVGA3D_TRANSFORM_WORLD2:
4868	case SVGA3D_TRANSFORM_WORLD3:
4869	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
4870	return VERR_INVALID_PARAMETER;
4871
4872	default:
4873	Log(("vmsvga3dSetTransform: unknown type!!\n"));
4874	return VERR_INVALID_PARAMETER;
4875	}
4876
4877	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
4878	if (fModelViewChanged)
4879	{
4880	/* Reprogram the clip planes. */
4881	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
4882	{
4883	if (pContext->state.aClipPlane[j].fValid == true)
4884	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
4885	}
4886
4887	/* Reprogram the light data. */
4888	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
4889	{
4890	if (pContext->state.aLightData[j].fValidData == true)
4891	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
4892	}
4893	}
4894
4895	return VINF_SUCCESS;
4896	}
4897
4898	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
4899	{
4900	PVMSVGA3DCONTEXT pContext;
4901	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4902	AssertReturn(pState, VERR_NO_MEMORY);
4903
4904	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
4905
4906	if ( cid >= pState->cContexts
4907	\|\| pState->papContexts[cid]->id != cid)
4908	{
4909	Log(("vmsvga3dSetZRange invalid context id!\n"));
4910	return VERR_INVALID_PARAMETER;
4911	}
4912	pContext = pState->papContexts[cid];
4913	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4914
4915	pContext->state.zRange = zRange;
4916	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
4917
4918	if (zRange.min < -1.0)
4919	zRange.min = -1.0;
4920	if (zRange.max > 1.0)
4921	zRange.max = 1.0;
4922
4923	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
4924	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4925	return VINF_SUCCESS;
4926	}
4927
4928	/**
4929	* Convert SVGA blend op value to its OpenGL equivalent
4930	*/
4931	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
4932	{
4933	switch (blendOp)
4934	{
4935	case SVGA3D_BLENDOP_ZERO:
4936	return GL_ZERO;
4937	case SVGA3D_BLENDOP_ONE:
4938	return GL_ONE;
4939	case SVGA3D_BLENDOP_SRCCOLOR:
4940	return GL_SRC_COLOR;
4941	case SVGA3D_BLENDOP_INVSRCCOLOR:
4942	return GL_ONE_MINUS_SRC_COLOR;
4943	case SVGA3D_BLENDOP_SRCALPHA:
4944	return GL_SRC_ALPHA;
4945	case SVGA3D_BLENDOP_INVSRCALPHA:
4946	return GL_ONE_MINUS_SRC_ALPHA;
4947	case SVGA3D_BLENDOP_DESTALPHA:
4948	return GL_DST_ALPHA;
4949	case SVGA3D_BLENDOP_INVDESTALPHA:
4950	return GL_ONE_MINUS_DST_ALPHA;
4951	case SVGA3D_BLENDOP_DESTCOLOR:
4952	return GL_DST_COLOR;
4953	case SVGA3D_BLENDOP_INVDESTCOLOR:
4954	return GL_ONE_MINUS_DST_COLOR;
4955	case SVGA3D_BLENDOP_SRCALPHASAT:
4956	return GL_SRC_ALPHA_SATURATE;
4957	case SVGA3D_BLENDOP_BLENDFACTOR:
4958	return GL_CONSTANT_ALPHA; /* @todo correct?? */
4959	case SVGA3D_BLENDOP_INVBLENDFACTOR:
4960	return GL_ONE_MINUS_CONSTANT_ALPHA; /* @todo correct?? */
4961	default:
4962	AssertFailed();
4963	return GL_ONE;
4964	}
4965	}
4966
4967	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
4968	{
4969	switch (blendEq)
4970	{
4971	case SVGA3D_BLENDEQ_ADD:
4972	return GL_FUNC_ADD;
4973	case SVGA3D_BLENDEQ_SUBTRACT:
4974	return GL_FUNC_SUBTRACT;
4975	case SVGA3D_BLENDEQ_REVSUBTRACT:
4976	return GL_FUNC_REVERSE_SUBTRACT;
4977	case SVGA3D_BLENDEQ_MINIMUM:
4978	return GL_MIN;
4979	case SVGA3D_BLENDEQ_MAXIMUM:
4980	return GL_MAX;
4981	default:
4982	AssertMsgFailed(("blendEq=%d (%#x)\n", blendEq, blendEq));
4983	return GL_FUNC_ADD;
4984	}
4985	}
4986
4987	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
4988	{
4989	switch (cmpFunc)
4990	{
4991	case SVGA3D_CMP_NEVER:
4992	return GL_NEVER;
4993	case SVGA3D_CMP_LESS:
4994	return GL_LESS;
4995	case SVGA3D_CMP_EQUAL:
4996	return GL_EQUAL;
4997	case SVGA3D_CMP_LESSEQUAL:
4998	return GL_LEQUAL;
4999	case SVGA3D_CMP_GREATER:
5000	return GL_GREATER;
5001	case SVGA3D_CMP_NOTEQUAL:
5002	return GL_NOTEQUAL;
5003	case SVGA3D_CMP_GREATEREQUAL:
5004	return GL_GEQUAL;
5005	case SVGA3D_CMP_ALWAYS:
5006	return GL_ALWAYS;
5007	default:
5008	AssertFailed();
5009	return GL_LESS;
5010	}
5011	}
5012
5013	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
5014	{
5015	switch (stencilOp)
5016	{
5017	case SVGA3D_STENCILOP_KEEP:
5018	return GL_KEEP;
5019	case SVGA3D_STENCILOP_ZERO:
5020	return GL_ZERO;
5021	case SVGA3D_STENCILOP_REPLACE:
5022	return GL_REPLACE;
5023	case SVGA3D_STENCILOP_INCRSAT:
5024	return GL_INCR_WRAP;
5025	case SVGA3D_STENCILOP_DECRSAT:
5026	return GL_DECR_WRAP;
5027	case SVGA3D_STENCILOP_INVERT:
5028	return GL_INVERT;
5029	case SVGA3D_STENCILOP_INCR:
5030	return GL_INCR;
5031	case SVGA3D_STENCILOP_DECR:
5032	return GL_DECR;
5033	default:
5034	AssertFailed();
5035	return GL_KEEP;
5036	}
5037	}
5038
5039	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
5040	{
5041	uint32_t val;
5042	PVMSVGA3DCONTEXT pContext;
5043	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5044	AssertReturn(pState, VERR_NO_MEMORY);
5045
5046	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
5047
5048	if ( cid >= pState->cContexts
5049	\|\| pState->papContexts[cid]->id != cid)
5050	{
5051	Log(("vmsvga3dSetRenderState invalid context id!\n"));
5052	return VERR_INVALID_PARAMETER;
5053	}
5054	pContext = pState->papContexts[cid];
5055	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5056
5057	for (unsigned i = 0; i < cRenderStates; i++)
5058	{
5059	GLenum enableCap = ~0U;
5060	Log(("vmsvga3dSetRenderState: cid=%x state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
5061	/* Save the render state for vm state saving. */
5062	if (pRenderState[i].state < SVGA3D_RS_MAX)
5063	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
5064
5065	switch (pRenderState[i].state)
5066	{
5067	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
5068	enableCap = GL_DEPTH_TEST;
5069	val = pRenderState[i].uintValue;
5070	break;
5071
5072	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
5073	glDepthMask(!!pRenderState[i].uintValue);
5074	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5075	break;
5076
5077	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
5078	enableCap = GL_ALPHA_TEST;
5079	val = pRenderState[i].uintValue;
5080	break;
5081
5082	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
5083	enableCap = GL_DITHER;
5084	val = pRenderState[i].uintValue;
5085	break;
5086
5087	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
5088	enableCap = GL_FOG;
5089	val = pRenderState[i].uintValue;
5090	break;
5091
5092	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
5093	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
5094	break;
5095
5096	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
5097	enableCap = GL_LIGHTING;
5098	val = pRenderState[i].uintValue;
5099	break;
5100
5101	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
5102	/* not applicable */
5103	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
5104	break;
5105
5106	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
5107	enableCap = GL_POINT_SPRITE_ARB;
5108	val = pRenderState[i].uintValue;
5109	break;
5110
5111	case SVGA3D_RS_POINTSIZE: /* float */
5112	/* @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
5113	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
5114	pRenderState[i].floatValue = pState->caps.flPointSize[0];
5115	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
5116	pRenderState[i].floatValue = pState->caps.flPointSize[1];
5117
5118	glPointSize(pRenderState[i].floatValue);
5119	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5120	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
5121	break;
5122
5123	case SVGA3D_RS_POINTSIZEMIN: /* float */
5124	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
5125	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5126	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
5127	break;
5128
5129	case SVGA3D_RS_POINTSIZEMAX: /* float */
5130	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
5131	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5132	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
5133	break;
5134
5135	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
5136	case SVGA3D_RS_POINTSCALE_A: /* float */
5137	case SVGA3D_RS_POINTSCALE_B: /* float */
5138	case SVGA3D_RS_POINTSCALE_C: /* float */
5139	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
5140	break;
5141
5142	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
5143	{
5144	GLfloat color[4]; /* red, green, blue, alpha */
5145
5146	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
5147
5148	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
5149	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5150	break;
5151	}
5152
5153	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
5154	{
5155	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
5156	for (uint32_t j = 0; j <= 5; j++)
5157	{
5158	if (pRenderState[i].uintValue & RT_BIT(j))
5159	glEnable(GL_CLIP_PLANE0 + j);
5160	else
5161	glDisable(GL_CLIP_PLANE0 + j);
5162	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5163	}
5164	break;
5165	}
5166
5167	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
5168	{
5169	GLfloat color[4]; /* red, green, blue, alpha */
5170
5171	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
5172
5173	glFogfv(GL_FOG_COLOR, color);
5174	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5175	break;
5176	}
5177
5178	case SVGA3D_RS_FOGSTART: /* float */
5179	glFogf(GL_FOG_START, pRenderState[i].floatValue);
5180	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5181	break;
5182
5183	case SVGA3D_RS_FOGEND: /* float */
5184	glFogf(GL_FOG_END, pRenderState[i].floatValue);
5185	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5186	break;
5187
5188	case SVGA3D_RS_FOGDENSITY: /* float */
5189	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
5190	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5191	break;
5192
5193	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
5194	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
5195	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5196	break;
5197
5198	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
5199	{
5200	SVGA3dFogMode mode;
5201	mode.uintValue = pRenderState[i].uintValue;
5202
5203	enableCap = GL_FOG_MODE;
5204	switch (mode.s.function)
5205	{
5206	case SVGA3D_FOGFUNC_EXP:
5207	val = GL_EXP;
5208	break;
5209	case SVGA3D_FOGFUNC_EXP2:
5210	val = GL_EXP2;
5211	break;
5212	case SVGA3D_FOGFUNC_LINEAR:
5213	val = GL_LINEAR;
5214	break;
5215	default:
5216	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
5217	break;
5218	}
5219
5220	/* @todo how to switch between vertex and pixel fog modes??? */
5221	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
5222	#if 0
5223	/* The fog type determines the render state. */
5224	switch (mode.s.type)
5225	{
5226	case SVGA3D_FOGTYPE_VERTEX:
5227	renderState = D3DRS_FOGVERTEXMODE;
5228	break;
5229	case SVGA3D_FOGTYPE_PIXEL:
5230	renderState = D3DRS_FOGTABLEMODE;
5231	break;
5232	default:
5233	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
5234	break;
5235	}
5236	#endif
5237
5238	/* Set the fog base to depth or range. */
5239	switch (mode.s.base)
5240	{
5241	case SVGA3D_FOGBASE_DEPTHBASED:
5242	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
5243	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5244	break;
5245	case SVGA3D_FOGBASE_RANGEBASED:
5246	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
5247	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5248	break;
5249	default:
5250	/* ignore */
5251	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
5252	break;
5253	}
5254	break;
5255	}
5256
5257	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
5258	{
5259	SVGA3dFillMode mode;
5260
5261	mode.uintValue = pRenderState[i].uintValue;
5262
5263	switch (mode.s.mode)
5264	{
5265	case SVGA3D_FILLMODE_POINT:
5266	val = GL_POINT;
5267	break;
5268	case SVGA3D_FILLMODE_LINE:
5269	val = GL_LINE;
5270	break;
5271	case SVGA3D_FILLMODE_FILL:
5272	val = GL_FILL;
5273	break;
5274	default:
5275	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
5276	break;
5277	}
5278	/* @note only front and back faces */
5279	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
5280	glPolygonMode(GL_FRONT_AND_BACK, val);
5281	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5282	break;
5283	}
5284
5285	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
5286	switch (pRenderState[i].uintValue)
5287	{
5288	case SVGA3D_SHADEMODE_FLAT:
5289	val = GL_FLAT;
5290	break;
5291
5292	case SVGA3D_SHADEMODE_SMOOTH:
5293	val = GL_SMOOTH;
5294	break;
5295
5296	default:
5297	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
5298	break;
5299	}
5300
5301	glShadeModel(val);
5302	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5303	break;
5304
5305	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
5306	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
5307	/* @todo */
5308	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
5309	/*
5310	renderState = D3DRS_LINEPATTERN;
5311	val = pRenderState[i].uintValue;
5312	*/
5313	break;
5314
5315	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
5316	enableCap = GL_LINE_SMOOTH;
5317	val = pRenderState[i].uintValue;
5318	break;
5319
5320	case SVGA3D_RS_LINEWIDTH: /* float */
5321	glLineWidth(pRenderState[i].floatValue);
5322	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5323	break;
5324
5325	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
5326	{
5327	/* Refresh the blending state based on the new enable setting. */
5328	SVGA3dRenderState renderstate[2];
5329
5330	renderstate[0].state = SVGA3D_RS_SRCBLEND;
5331	renderstate[0].uintValue = pContext->state.aRenderState[SVGA3D_RS_SRCBLEND].uintValue;
5332	renderstate[1].state = SVGA3D_RS_BLENDEQUATION;
5333	renderstate[1].uintValue = pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue;
5334
5335	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
5336	AssertRCReturn(rc, rc);
5337
5338	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
5339	continue; /* ignore if blend is already enabled */
5340	/* no break */
5341	}
5342
5343	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
5344	enableCap = GL_BLEND;
5345	val = pRenderState[i].uintValue;
5346	break;
5347
5348	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
5349	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
5350	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
5351	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
5352	{
5353	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
5354	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
5355
5356	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
5357	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5358	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
5359	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5360	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
5361	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5362	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
5363	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5364
5365	switch (pRenderState[i].state)
5366	{
5367	case SVGA3D_RS_SRCBLEND:
5368	srcRGB = blendop;
5369	break;
5370	case SVGA3D_RS_DSTBLEND:
5371	dstRGB = blendop;
5372	break;
5373	case SVGA3D_RS_SRCBLENDALPHA:
5374	srcAlpha = blendop;
5375	break;
5376	case SVGA3D_RS_DSTBLENDALPHA:
5377	dstAlpha = blendop;
5378	break;
5379	default:
5380	/* not possible; shut up gcc */
5381	AssertFailed();
5382	break;
5383	}
5384
5385	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
5386	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
5387	else
5388	glBlendFunc(srcRGB, dstRGB);
5389	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5390	break;
5391	}
5392
5393	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
5394	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
5395	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
5396	pState->ext.glBlendEquationSeparate(vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue),
5397	vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue));
5398	else
5399	{
5400	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
5401	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
5402	#else
5403	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
5404	#endif
5405	}
5406	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5407	break;
5408
5409	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
5410	{
5411	GLfloat red, green, blue, alpha;
5412
5413	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
5414
5415	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
5416	glBlendColor(red, green, blue, alpha);
5417	#else
5418	pState->ext.glBlendColor(red, green, blue, alpha);
5419	#endif
5420	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5421	break;
5422	}
5423
5424	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
5425	{
5426	GLenum mode = GL_BACK; /* default for OpenGL */
5427
5428	switch (pRenderState[i].uintValue)
5429	{
5430	case SVGA3D_FACE_NONE:
5431	break;
5432	case SVGA3D_FACE_FRONT:
5433	mode = GL_FRONT;
5434	break;
5435	case SVGA3D_FACE_BACK:
5436	mode = GL_BACK;
5437	break;
5438	case SVGA3D_FACE_FRONT_BACK:
5439	mode = GL_FRONT_AND_BACK;
5440	break;
5441	default:
5442	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
5443	break;
5444	}
5445	enableCap = GL_CULL_FACE;
5446	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
5447	{
5448	glCullFace(mode);
5449	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5450	val = 1;
5451	}
5452	else
5453	val = 0;
5454	break;
5455	}
5456
5457	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
5458	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
5459	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5460	break;
5461
5462	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
5463	{
5464	GLclampf ref;
5465
5466	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
5467	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5468	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
5469	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5470	break;
5471	}
5472
5473	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
5474	{
5475	GLint func;
5476
5477	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
5478	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5479	glAlphaFunc(func, pRenderState[i].floatValue);
5480	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5481	break;
5482	}
5483
5484	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
5485	enableCap = GL_STENCIL_TEST;
5486	val = pRenderState[i].uintValue;
5487	break;
5488
5489	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
5490	case SVGA3D_RS_STENCILREF: /* uint32_t */
5491	case SVGA3D_RS_STENCILMASK: /* uint32_t */
5492	{
5493	GLint func, ref;
5494	GLuint mask;
5495
5496	glGetIntegerv(GL_STENCIL_FUNC, &func);
5497	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5498	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
5499	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5500	glGetIntegerv(GL_STENCIL_REF, &ref);
5501	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5502
5503	switch (pRenderState[i].state)
5504	{
5505	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
5506	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
5507	break;
5508
5509	case SVGA3D_RS_STENCILREF: /* uint32_t */
5510	ref = pRenderState[i].uintValue;
5511	break;
5512
5513	case SVGA3D_RS_STENCILMASK: /* uint32_t */
5514	mask = pRenderState[i].uintValue;
5515	break;
5516
5517	default:
5518	/* not possible; shut up gcc */
5519	AssertFailed();
5520	break;
5521	}
5522
5523	glStencilFunc(func, ref, mask);
5524	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5525	break;
5526	}
5527
5528	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
5529	glStencilMask(pRenderState[i].uintValue);
5530	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5531	break;
5532
5533	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
5534	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
5535	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
5536	{
5537	GLint sfail, dpfail, dppass;
5538	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
5539
5540	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
5541	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5542	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
5543	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5544	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
5545	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5546
5547	switch (pRenderState[i].state)
5548	{
5549	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
5550	sfail = stencilop;
5551	break;
5552	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
5553	dpfail = stencilop;
5554	break;
5555	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
5556	dppass = stencilop;
5557	break;
5558	default:
5559	/* not possible; shut up gcc */
5560	AssertFailed();
5561	break;
5562	}
5563	glStencilOp(sfail, dpfail, dppass);
5564	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5565	break;
5566	}
5567
5568	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
5569	/* @note GL_EXT_stencil_two_side required! */
5570	if (pState->ext.fEXT_stencil_two_side)
5571	{
5572	enableCap = GL_STENCIL_TEST_TWO_SIDE_EXT;
5573	val = pRenderState[i].uintValue;
5574	}
5575	else
5576	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_STENCILENABLE2SIDED\n"));
5577	break;
5578
5579	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
5580	{
5581	/* @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
5582	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
5583	*/
5584	GLint ref;
5585	GLuint mask;
5586
5587	glGetIntegerv(GL_STENCIL_BACK_VALUE_MASK, (GLint *)&mask);
5588	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5589	glGetIntegerv(GL_STENCIL_BACK_REF, &ref);
5590	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5591
5592	pState->ext.glStencilFuncSeparate(GL_BACK, vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref, mask);
5593	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5594	break;
5595	}
5596
5597	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
5598	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
5599	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
5600	{
5601	/* @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
5602	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
5603	*/
5604	GLint sfail, dpfail, dppass;
5605	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
5606
5607	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
5608	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5609	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
5610	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5611	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
5612	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5613
5614	switch (pRenderState[i].state)
5615	{
5616	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
5617	sfail = stencilop;
5618	break;
5619	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
5620	dpfail = stencilop;
5621	break;
5622	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
5623	dppass = stencilop;
5624	break;
5625	default:
5626	/* not possible; shut up gcc */
5627	AssertFailed();
5628	break;
5629	}
5630	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
5631	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5632	break;
5633	}
5634
5635	case SVGA3D_RS_ZBIAS: /* float */
5636	/* @todo unknown meaning; depth bias is not identical
5637	renderState = D3DRS_DEPTHBIAS;
5638	val = pRenderState[i].uintValue;
5639	*/
5640	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
5641	break;
5642
5643	case SVGA3D_RS_DEPTHBIAS: /* float */
5644	{
5645	GLfloat factor;
5646
5647	/* @todo not sure if the d3d & ogl definitions are identical. */
5648
5649	/* Do not change the factor part. */
5650	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
5651	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5652
5653	glPolygonOffset(factor, pRenderState[i].floatValue);
5654	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5655	break;
5656	}
5657
5658	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
5659	{
5660	GLfloat units;
5661
5662	/* @todo not sure if the d3d & ogl definitions are identical. */
5663
5664	/* Do not change the factor part. */
5665	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
5666	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5667
5668	glPolygonOffset(pRenderState[i].floatValue, units);
5669	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5670	break;
5671	}
5672
5673	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
5674	{
5675	GLboolean red, green, blue, alpha;
5676	SVGA3dColorMask mask;
5677
5678	mask.uintValue = pRenderState[i].uintValue;
5679
5680	red = mask.s.red;
5681	green = mask.s.green;
5682	blue = mask.s.blue;
5683	alpha = mask.s.alpha;
5684
5685	glColorMask(red, green, blue, alpha);
5686	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5687	break;
5688	}
5689
5690	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
5691	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
5692	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
5693	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
5694	break;
5695
5696	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
5697	enableCap = GL_SCISSOR_TEST;
5698	val = pRenderState[i].uintValue;
5699	break;
5700
5701	#if 0
5702	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
5703	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
5704	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
5705	val = pRenderState[i].uintValue;
5706	break;
5707
5708	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
5709	renderState = D3DRS_SPECULARMATERIALSOURCE;
5710	val = pRenderState[i].uintValue;
5711	break;
5712
5713	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
5714	renderState = D3DRS_AMBIENTMATERIALSOURCE;
5715	val = pRenderState[i].uintValue;
5716	break;
5717
5718	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
5719	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
5720	val = pRenderState[i].uintValue;
5721	break;
5722	#endif
5723
5724	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
5725	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
5726	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
5727	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
5728	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
5729	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
5730	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
5731	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
5732	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
5733	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
5734	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
5735	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
5736	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
5737	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
5738	break;
5739
5740	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
5741	case SVGA3D_RS_TWEENFACTOR: /* float */
5742	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
5743	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
5744	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
5745	break;
5746
5747	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
5748	enableCap = GL_MULTISAMPLE;
5749	val = pRenderState[i].uintValue;
5750	break;
5751
5752	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
5753	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
5754	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
5755	break;
5756
5757	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
5758	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
5759	/* @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
5760	/*
5761	renderState = D3DRS_COORDINATETYPE;
5762	val = pRenderState[i].uintValue;
5763	*/
5764	break;
5765
5766	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
5767	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
5768	/* Invert the selected mode because of y-inversion (?) */
5769	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
5770	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5771	break;
5772
5773	case SVGA3D_RS_OUTPUTGAMMA: /* float */
5774	//AssertFailed();
5775	/*
5776	D3DRS_SRGBWRITEENABLE ??
5777	renderState = D3DRS_OUTPUTGAMMA;
5778	val = pRenderState[i].uintValue;
5779	*/
5780	break;
5781
5782	#if 0
5783
5784	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
5785	//AssertFailed();
5786	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
5787	val = pRenderState[i].uintValue;
5788	break;
5789
5790	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
5791	renderState = D3DRS_TEXTUREFACTOR;
5792	val = pRenderState[i].uintValue;
5793	break;
5794
5795	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
5796	renderState = D3DRS_LOCALVIEWER;
5797	val = pRenderState[i].uintValue;
5798	break;
5799
5800	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
5801	AssertFailed();
5802	/*
5803	renderState = D3DRS_ZVISIBLE;
5804	val = pRenderState[i].uintValue;
5805	*/
5806	break;
5807
5808	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
5809	renderState = D3DRS_CLIPPING;
5810	val = pRenderState[i].uintValue;
5811	break;
5812
5813	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
5814	glTexParameter GL_TEXTURE_WRAP_S
5815	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
5816	renderState = D3DRS_WRAP0;
5817	val = pRenderState[i].uintValue;
5818	break;
5819
5820	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
5821	glTexParameter GL_TEXTURE_WRAP_T
5822	renderState = D3DRS_WRAP1;
5823	val = pRenderState[i].uintValue;
5824	break;
5825
5826	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
5827	glTexParameter GL_TEXTURE_WRAP_R
5828	renderState = D3DRS_WRAP2;
5829	val = pRenderState[i].uintValue;
5830	break;
5831
5832
5833	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
5834	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
5835	val = pRenderState[i].uintValue;
5836	break;
5837
5838
5839	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
5840	renderState = D3DRS_BLENDOPALPHA;
5841	val = pRenderState[i].uintValue;
5842	break;
5843
5844	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
5845	AssertFailed();
5846	/*
5847	renderState = D3DRS_TRANSPARENCYANTIALIAS;
5848	val = pRenderState[i].uintValue;
5849	*/
5850	break;
5851
5852	#endif
5853	default:
5854	AssertFailed();
5855	break;
5856	}
5857
5858	if (enableCap != ~0U)
5859	{
5860	if (val)
5861	glEnable(enableCap);
5862	else
5863	glDisable(enableCap);
5864	}
5865	}
5866
5867	return VINF_SUCCESS;
5868	}
5869
5870	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
5871	{
5872	PVMSVGA3DCONTEXT pContext;
5873	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5874	PVMSVGA3DSURFACE pRenderTarget;
5875
5876	AssertReturn(pState, VERR_NO_MEMORY);
5877	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
5878	AssertReturn(target.face == 0, VERR_INVALID_PARAMETER);
5879
5880	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
5881
5882	if ( cid >= pState->cContexts
5883	\|\| pState->papContexts[cid]->id != cid)
5884	{
5885	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
5886	return VERR_INVALID_PARAMETER;
5887	}
5888	pContext = pState->papContexts[cid];
5889	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5890
5891	/* Save for vm state save/restore. */
5892	pContext->state.aRenderTargets[type] = target.sid;
5893
5894	if (target.sid == SVGA3D_INVALID_ID)
5895	{
5896	/* Disable render target. */
5897	switch (type)
5898	{
5899	case SVGA3D_RT_DEPTH:
5900	case SVGA3D_RT_STENCIL:
5901	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
5902	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5903	break;
5904
5905	case SVGA3D_RT_COLOR0:
5906	case SVGA3D_RT_COLOR1:
5907	case SVGA3D_RT_COLOR2:
5908	case SVGA3D_RT_COLOR3:
5909	case SVGA3D_RT_COLOR4:
5910	case SVGA3D_RT_COLOR5:
5911	case SVGA3D_RT_COLOR6:
5912	case SVGA3D_RT_COLOR7:
5913	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
5914	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
5915	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5916	break;
5917
5918	default:
5919	AssertFailedReturn(VERR_INVALID_PARAMETER);
5920	}
5921	return VINF_SUCCESS;
5922	}
5923
5924	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5925	AssertReturn(target.sid < pState->cSurfaces && pState->papSurfaces[target.sid]->id == target.sid, VERR_INVALID_PARAMETER);
5926	pRenderTarget = pState->papSurfaces[target.sid];
5927
5928	switch (type)
5929	{
5930	case SVGA3D_RT_DEPTH:
5931	case SVGA3D_RT_STENCIL:
5932	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
5933	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
5934	{
5935	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->flags, pRenderTarget->internalFormatGL));
5936	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
5937	pContext = &pState->SharedCtx;
5938	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5939	#endif
5940	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
5941	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5942
5943	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
5944	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5945
5946	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
5947	pRenderTarget->internalFormatGL,
5948	pRenderTarget->pMipmapLevels[0].size.width,
5949	pRenderTarget->pMipmapLevels[0].size.height);
5950	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5951
5952	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
5953	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
5954	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5955
5956	pContext = pState->papContexts[cid];
5957	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5958	# ifdef VMSVGA3D_OGL_WITH_SHARED_CTX_EXPERIMENT_1
5959	pRenderTarget->idWeakContextAssociation = cid;
5960	# endif
5961	#else
5962	LogFlow(("vmsvga3dSetRenderTarget: sid=%x idAssociatedContext %#x -> %#x\n", pRenderTarget->id, pRenderTarget->idAssociatedContext, cid));
5963	pRenderTarget->idAssociatedContext = cid;
5964	#endif
5965	}
5966	#ifndef VMSVGA3D_OGL_WITH_SHARED_CTX
5967	else
5968	#endif
5969	{
5970	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
5971	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5972	}
5973	#ifndef VMSVGA3D_OGL_WITH_SHARED_CTX
5974	Assert(pRenderTarget->idAssociatedContext == cid);
5975	#endif
5976	Assert(!pRenderTarget->fDirty);
5977	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
5978
5979	pRenderTarget->flags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
5980
5981	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
5982	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
5983	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
5984	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5985	break;
5986
5987	case SVGA3D_RT_COLOR0:
5988	case SVGA3D_RT_COLOR1:
5989	case SVGA3D_RT_COLOR2:
5990	case SVGA3D_RT_COLOR3:
5991	case SVGA3D_RT_COLOR4:
5992	case SVGA3D_RT_COLOR5:
5993	case SVGA3D_RT_COLOR6:
5994	case SVGA3D_RT_COLOR7:
5995	{
5996	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
5997	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
5998	{
5999	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));
6000	int rc = vmsvga3dCreateTexture(pState, pContext, cid, pRenderTarget);
6001	AssertRCReturn(rc, rc);
6002	}
6003
6004	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
6005	Assert(!pRenderTarget->fDirty);
6006
6007	pRenderTarget->flags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
6008
6009	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
6010	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6011
6012	pContext->sidRenderTarget = target.sid;
6013
6014	#ifdef DEBUG
6015	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
6016	if (status != GL_FRAMEBUFFER_COMPLETE)
6017	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
6018	#endif
6019	/* @todo use glDrawBuffers too? */
6020	break;
6021	}
6022
6023	default:
6024	AssertFailedReturn(VERR_INVALID_PARAMETER);
6025	}
6026
6027	return VINF_SUCCESS;
6028	}
6029
6030	#if 0
6031	/**
6032	* Convert SVGA texture combiner value to its D3D equivalent
6033	*/
6034	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
6035	{
6036	switch (value)
6037	{
6038	case SVGA3D_TC_DISABLE:
6039	return D3DTOP_DISABLE;
6040	case SVGA3D_TC_SELECTARG1:
6041	return D3DTOP_SELECTARG1;
6042	case SVGA3D_TC_SELECTARG2:
6043	return D3DTOP_SELECTARG2;
6044	case SVGA3D_TC_MODULATE:
6045	return D3DTOP_MODULATE;
6046	case SVGA3D_TC_ADD:
6047	return D3DTOP_ADD;
6048	case SVGA3D_TC_ADDSIGNED:
6049	return D3DTOP_ADDSIGNED;
6050	case SVGA3D_TC_SUBTRACT:
6051	return D3DTOP_SUBTRACT;
6052	case SVGA3D_TC_BLENDTEXTUREALPHA:
6053	return D3DTOP_BLENDTEXTUREALPHA;
6054	case SVGA3D_TC_BLENDDIFFUSEALPHA:
6055	return D3DTOP_BLENDDIFFUSEALPHA;
6056	case SVGA3D_TC_BLENDCURRENTALPHA:
6057	return D3DTOP_BLENDCURRENTALPHA;
6058	case SVGA3D_TC_BLENDFACTORALPHA:
6059	return D3DTOP_BLENDFACTORALPHA;
6060	case SVGA3D_TC_MODULATE2X:
6061	return D3DTOP_MODULATE2X;
6062	case SVGA3D_TC_MODULATE4X:
6063	return D3DTOP_MODULATE4X;
6064	case SVGA3D_TC_DSDT:
6065	AssertFailed(); /* @todo ??? */
6066	return D3DTOP_DISABLE;
6067	case SVGA3D_TC_DOTPRODUCT3:
6068	return D3DTOP_DOTPRODUCT3;
6069	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
6070	return D3DTOP_BLENDTEXTUREALPHAPM;
6071	case SVGA3D_TC_ADDSIGNED2X:
6072	return D3DTOP_ADDSIGNED2X;
6073	case SVGA3D_TC_ADDSMOOTH:
6074	return D3DTOP_ADDSMOOTH;
6075	case SVGA3D_TC_PREMODULATE:
6076	return D3DTOP_PREMODULATE;
6077	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
6078	return D3DTOP_MODULATEALPHA_ADDCOLOR;
6079	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
6080	return D3DTOP_MODULATECOLOR_ADDALPHA;
6081	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
6082	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
6083	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
6084	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
6085	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
6086	return D3DTOP_BUMPENVMAPLUMINANCE;
6087	case SVGA3D_TC_MULTIPLYADD:
6088	return D3DTOP_MULTIPLYADD;
6089	case SVGA3D_TC_LERP:
6090	return D3DTOP_LERP;
6091	default:
6092	AssertFailed();
6093	return D3DTOP_DISABLE;
6094	}
6095	}
6096
6097	/**
6098	* Convert SVGA texture arg data value to its D3D equivalent
6099	*/
6100	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
6101	{
6102	switch (value)
6103	{
6104	case SVGA3D_TA_CONSTANT:
6105	return D3DTA_CONSTANT;
6106	case SVGA3D_TA_PREVIOUS:
6107	return D3DTA_CURRENT; /* current = previous */
6108	case SVGA3D_TA_DIFFUSE:
6109	return D3DTA_DIFFUSE;
6110	case SVGA3D_TA_TEXTURE:
6111	return D3DTA_TEXTURE;
6112	case SVGA3D_TA_SPECULAR:
6113	return D3DTA_SPECULAR;
6114	default:
6115	AssertFailed();
6116	return 0;
6117	}
6118	}
6119
6120	/**
6121	* Convert SVGA texture transform flag value to its D3D equivalent
6122	*/
6123	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
6124	{
6125	switch (value)
6126	{
6127	case SVGA3D_TEX_TRANSFORM_OFF:
6128	return D3DTTFF_DISABLE;
6129	case SVGA3D_TEX_TRANSFORM_S:
6130	return D3DTTFF_COUNT1; /* @todo correct? */
6131	case SVGA3D_TEX_TRANSFORM_T:
6132	return D3DTTFF_COUNT2; /* @todo correct? */
6133	case SVGA3D_TEX_TRANSFORM_R:
6134	return D3DTTFF_COUNT3; /* @todo correct? */
6135	case SVGA3D_TEX_TRANSFORM_Q:
6136	return D3DTTFF_COUNT4; /* @todo correct? */
6137	case SVGA3D_TEX_PROJECTED:
6138	return D3DTTFF_PROJECTED;
6139	default:
6140	AssertFailed();
6141	return 0;
6142	}
6143	}
6144	#endif
6145
6146	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
6147	{
6148	switch (value)
6149	{
6150	case SVGA3D_TEX_ADDRESS_WRAP:
6151	return GL_REPEAT;
6152	case SVGA3D_TEX_ADDRESS_MIRROR:
6153	return GL_MIRRORED_REPEAT;
6154	case SVGA3D_TEX_ADDRESS_CLAMP:
6155	return GL_CLAMP_TO_EDGE;
6156	case SVGA3D_TEX_ADDRESS_BORDER:
6157	return GL_CLAMP_TO_BORDER;
6158	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
6159	AssertFailed();
6160	return GL_CLAMP_TO_EDGE_SGIS; /* @todo correct? */
6161
6162	case SVGA3D_TEX_ADDRESS_EDGE:
6163	case SVGA3D_TEX_ADDRESS_INVALID:
6164	default:
6165	AssertFailed();
6166	return GL_REPEAT; /* default */
6167	}
6168	}
6169
6170	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
6171	{
6172	switch (value)
6173	{
6174	case SVGA3D_TEX_FILTER_NONE:
6175	case SVGA3D_TEX_FILTER_LINEAR:
6176	return GL_LINEAR;
6177	case SVGA3D_TEX_FILTER_NEAREST:
6178	return GL_NEAREST;
6179	case SVGA3D_TEX_FILTER_ANISOTROPIC:
6180	/* @todo */
6181	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
6182	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
6183	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
6184	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
6185	default:
6186	AssertFailed();
6187	return GL_LINEAR; /* default */
6188	}
6189	}
6190
6191	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
6192	{
6193	/* flip the red and blue bytes */
6194	uint8_t blue = value & 0xff;
6195	uint8_t red = (value >> 16) & 0xff;
6196	return (value & 0xff00ff00) \| red \| (blue << 16);
6197	}
6198
6199	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
6200	{
6201	GLenum val;
6202	GLenum currentStage = ~0L;
6203	PVMSVGA3DCONTEXT pContext;
6204	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6205	AssertReturn(pState, VERR_NO_MEMORY);
6206
6207	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
6208
6209	if ( cid >= pState->cContexts
6210	\|\| pState->papContexts[cid]->id != cid)
6211	{
6212	Log(("vmsvga3dSetTextureState invalid context id!\n"));
6213	return VERR_INVALID_PARAMETER;
6214	}
6215	pContext = pState->papContexts[cid];
6216	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6217
6218	for (unsigned i = 0; i < cTextureStates; i++)
6219	{
6220	GLenum textureType = ~0U;
6221	GLenum samplerType = ~0U;
6222
6223	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));
6224	/* Record the texture state for vm state saving. */
6225	if ( pTextureState[i].stage < SVGA3D_MAX_TEXTURE_STAGE
6226	&& pTextureState[i].name < SVGA3D_TS_MAX)
6227	{
6228	pContext->state.aTextureState[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
6229	}
6230
6231	/* Active the right texture unit for subsequent texture state changes. */
6232	if (pTextureState[i].stage != currentStage \|\| i == 0)
6233	{
6234	/** @todo Is this the appropriate limit for all kinds of textures? It is the
6235	* size of aSidActiveTexture and for binding/unbinding we cannot exceed it. */
6236	if (pTextureState[i].stage < SVGA3D_MAX_TEXTURE_STAGE)
6237	{
6238	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
6239	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6240	currentStage = pTextureState[i].stage;
6241	}
6242	else
6243	{
6244	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
6245	continue;
6246	}
6247	}
6248
6249	switch (pTextureState[i].name)
6250	{
6251	case SVGA3D_TS_BUMPENVMAT00: /* float */
6252	case SVGA3D_TS_BUMPENVMAT01: /* float */
6253	case SVGA3D_TS_BUMPENVMAT10: /* float */
6254	case SVGA3D_TS_BUMPENVMAT11: /* float */
6255	case SVGA3D_TS_BUMPENVLSCALE: /* float */
6256	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
6257	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
6258	break;
6259
6260	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
6261	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
6262	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
6263	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
6264	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
6265	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
6266	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
6267	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
6268	/* @todo; not used by MesaGL */
6269	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
6270	break;
6271	#if 0
6272
6273	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
6274	textureType = D3DTSS_TEXCOORDINDEX;
6275	val = pTextureState[i].value;
6276	break;
6277
6278	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
6279	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
6280	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
6281	break;
6282	#endif
6283
6284	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
6285	if (pTextureState[i].value == SVGA3D_INVALID_ID)
6286	{
6287	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x replacing=%x\n",
6288	currentStage, pTextureState[i].value, pContext->aSidActiveTexture[currentStage]));
6289
6290	pContext->aSidActiveTexture[currentStage] = SVGA3D_INVALID_ID;
6291	/* Unselect the currently associated texture. */
6292	glBindTexture(GL_TEXTURE_2D, 0);
6293	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6294	/* Necessary for the fixed pipeline. */
6295	glDisable(GL_TEXTURE_2D);
6296	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6297	}
6298	else
6299	{
6300	uint32_t sid = pTextureState[i].value;
6301
6302	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
6303	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
6304
6305	PVMSVGA3DSURFACE pSurface = pState->papSurfaces[sid];
6306
6307	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x (%d,%d) replacing=%x\n",
6308	currentStage, pTextureState[i].value, pSurface->pMipmapLevels[0].size.width,
6309	pSurface->pMipmapLevels[0].size.height, pContext->aSidActiveTexture[currentStage]));
6310
6311	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
6312	{
6313	#ifndef VMSVGA3D_OGL_WITH_SHARED_CTX
6314	Assert(pSurface->idAssociatedContext == SVGA3D_INVALID_ID);
6315	#endif
6316	Log(("CreateTexture (%d,%d) level=%d\n", pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height, pSurface->faces[0].numMipLevels));
6317	int rc = vmsvga3dCreateTexture(pState, pContext, cid, pSurface);
6318	AssertRCReturn(rc, rc);
6319	}
6320
6321	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
6322	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6323
6324	/* Necessary for the fixed pipeline. */
6325	glEnable(GL_TEXTURE_2D);
6326	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6327
6328	if (pContext->aSidActiveTexture[currentStage] != sid)
6329	{
6330	/* Recreate the texture state as glBindTexture resets them all (sigh). */
6331	for (uint32_t iStage = 0; iStage < SVGA3D_MAX_TEXTURE_STAGE; iStage++)
6332	{
6333	for (uint32_t j = 0; j < SVGA3D_TS_MAX; j++)
6334	{
6335	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureState[iStage][j];
6336
6337	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
6338	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
6339	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
6340	}
6341	}
6342	}
6343	pContext->aSidActiveTexture[currentStage] = sid;
6344	}
6345	/* Finished; continue with the next one. */
6346	continue;
6347
6348	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
6349	textureType = GL_TEXTURE_WRAP_R; /* R = W */
6350	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
6351	break;
6352
6353	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
6354	textureType = GL_TEXTURE_WRAP_S; /* S = U */
6355	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
6356	break;
6357
6358	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
6359	textureType = GL_TEXTURE_WRAP_T; /* T = V */
6360	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
6361	break;
6362
6363	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
6364	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
6365	{
6366	uint32_t mipFilter = pContext->state.aTextureState[currentStage][SVGA3D_TS_MIPFILTER].value;
6367	uint32_t minFilter = pContext->state.aTextureState[currentStage][SVGA3D_TS_MINFILTER].value;
6368
6369	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
6370	textureType = GL_TEXTURE_MIN_FILTER;
6371	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
6372	{
6373	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
6374	{
6375	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
6376	val = GL_NEAREST_MIPMAP_LINEAR;
6377	else
6378	val = GL_NEAREST_MIPMAP_NEAREST;
6379	}
6380	else
6381	{
6382	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
6383	val = GL_LINEAR_MIPMAP_LINEAR;
6384	else
6385	val = GL_LINEAR_MIPMAP_NEAREST;
6386	}
6387	}
6388	else
6389	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
6390	break;
6391	}
6392
6393	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
6394	textureType = GL_TEXTURE_MAG_FILTER;
6395	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
6396	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
6397	break;
6398
6399	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
6400	{
6401	GLfloat color[4]; /* red, green, blue, alpha */
6402
6403	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
6404
6405	glTexParameterfv(GL_TEXTURE_2D /* @todo flexible type /, GL_TEXTURE_BORDER_COLOR, color); / Identical; default 0.0 identical too */
6406	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6407	break;
6408	}
6409
6410	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
6411	glTexParameterf(GL_TEXTURE_2D /* @todo flexible type /, GL_TEXTURE_LOD_BIAS, pTextureState[i].value); / Identical; default 0.0 identical too */
6412	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6413	break;
6414
6415	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
6416	textureType = GL_TEXTURE_BASE_LEVEL;
6417	val = pTextureState[i].value;
6418	break;
6419
6420	#if 0
6421	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
6422	samplerType = D3DSAMP_MAXANISOTROPY;
6423	val = pTextureState[i].value; /* Identical?? */
6424	break;
6425
6426	case SVGA3D_TS_GAMMA: /* float */
6427	samplerType = D3DSAMP_SRGBTEXTURE;
6428	/* Boolean in D3D */
6429	if (pTextureState[i].floatValue == 1.0f)
6430	val = FALSE;
6431	else
6432	val = TRUE;
6433	break;
6434	#endif
6435	/* Internal commands, that don't map directly to the SetTextureStageState API. */
6436	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
6437	AssertFailed();
6438	break;
6439
6440	default:
6441	//AssertFailed();
6442	break;
6443	}
6444
6445	if (textureType != ~0U)
6446	{
6447	glTexParameteri(GL_TEXTURE_2D /* @todo flexible type */, textureType, val);
6448	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6449	}
6450	}
6451
6452	return VINF_SUCCESS;
6453	}
6454
6455	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
6456	{
6457	PVMSVGA3DCONTEXT pContext;
6458	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6459	AssertReturn(pState, VERR_NO_MEMORY);
6460	GLenum oglFace;
6461
6462	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
6463
6464	if ( cid >= pState->cContexts
6465	\|\| pState->papContexts[cid]->id != cid)
6466	{
6467	Log(("vmsvga3dSetMaterial invalid context id!\n"));
6468	return VERR_INVALID_PARAMETER;
6469	}
6470	pContext = pState->papContexts[cid];
6471	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6472
6473	switch (face)
6474	{
6475	case SVGA3D_FACE_NONE:
6476	case SVGA3D_FACE_FRONT:
6477	oglFace = GL_FRONT;
6478	break;
6479
6480	case SVGA3D_FACE_BACK:
6481	oglFace = GL_BACK;
6482	break;
6483
6484	case SVGA3D_FACE_FRONT_BACK:
6485	oglFace = GL_FRONT_AND_BACK;
6486	break;
6487
6488	default:
6489	AssertFailedReturn(VERR_INVALID_PARAMETER);
6490	}
6491
6492	/* Save for vm state save/restore. */
6493	pContext->state.aMaterial[face].fValid = true;
6494	pContext->state.aMaterial[face].material = *pMaterial;
6495	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
6496
6497	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
6498	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
6499	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
6500	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
6501	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
6502	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6503
6504	return VINF_SUCCESS;
6505	}
6506
6507	/* @todo Move into separate library as we are using logic from Wine here. */
6508	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
6509	{
6510	PVMSVGA3DCONTEXT pContext;
6511	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6512	AssertReturn(pState, VERR_NO_MEMORY);
6513	float QuadAttenuation;
6514
6515	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
6516
6517	if ( cid >= pState->cContexts
6518	\|\| pState->papContexts[cid]->id != cid)
6519	{
6520	Log(("vmsvga3dSetLightData invalid context id!\n"));
6521	return VERR_INVALID_PARAMETER;
6522	}
6523	pContext = pState->papContexts[cid];
6524	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6525
6526	/* Store for vm state save/restore */
6527	if (index < SVGA3D_MAX_LIGHTS)
6528	{
6529	pContext->state.aLightData[index].fValidData = true;
6530	pContext->state.aLightData[index].data = *pData;
6531	}
6532	else
6533	AssertFailed();
6534
6535	if ( pData->attenuation0 < 0.0f
6536	\|\| pData->attenuation1 < 0.0f
6537	\|\| pData->attenuation2 < 0.0f)
6538	{
6539	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
6540	return VINF_SUCCESS; /* ignore; could crash the GL driver */
6541	}
6542
6543	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
6544	glMatrixMode(GL_MODELVIEW);
6545	glPushMatrix();
6546	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
6547
6548	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
6549	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
6550	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
6551
6552	if (pData->range * pData->range >= FLT_MIN)
6553	QuadAttenuation = 1.4f / (pData->range * pData->range);
6554	else
6555	QuadAttenuation = 0.0f;
6556
6557	switch (pData->type)
6558	{
6559	case SVGA3D_LIGHTTYPE_POINT:
6560	{
6561	GLfloat position[4];
6562
6563	position[0] = pData->position[0];
6564	position[1] = pData->position[1];
6565	position[2] = pData->position[2];
6566	position[3] = 1.0f;
6567
6568	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
6569	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6570
6571	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
6572	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6573
6574	/* Attenuation - Are these right? guessing... */
6575	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
6576	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6577
6578	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
6579	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6580
6581	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
6582	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6583
6584	/* @todo range */
6585	break;
6586	}
6587
6588	case SVGA3D_LIGHTTYPE_SPOT1:
6589	{
6590	GLfloat exponent;
6591	GLfloat position[4];
6592	const GLfloat pi = 4.0f * atanf(1.0f);
6593
6594	position[0] = pData->position[0];
6595	position[1] = pData->position[1];
6596	position[2] = pData->position[2];
6597	position[3] = 1.0f;
6598
6599	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
6600	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6601
6602	position[0] = pData->direction[0];
6603	position[1] = pData->direction[1];
6604	position[2] = pData->direction[2];
6605	position[3] = 1.0f;
6606
6607	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
6608	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6609
6610	/*
6611	* opengl-ish and d3d-ish spot lights use too different models for the
6612	* light "intensity" as a function of the angle towards the main light direction,
6613	* so we only can approximate very roughly.
6614	* however spot lights are rather rarely used in games (if ever used at all).
6615	* furthermore if still used, probably nobody pays attention to such details.
6616	*/
6617	if (pData->falloff == 0)
6618	{
6619	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
6620	* falloff resp. exponent parameter as an exponent, so the spot light lighting
6621	* will always be 1.0 for both of them, and we don't have to care for the
6622	* rest of the rather complex calculation
6623	*/
6624	exponent = 0.0f;
6625	}
6626	else
6627	{
6628	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
6629	if (rho < 0.0001f)
6630	rho = 0.0001f;
6631	exponent = -0.3f/log(cos(rho/2));
6632	}
6633	if (exponent > 128.0f)
6634	exponent = 128.0f;
6635
6636	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
6637	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6638
6639	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
6640	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6641
6642	/* Attenuation - Are these right? guessing... */
6643	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
6644	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6645
6646	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
6647	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6648
6649	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
6650	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6651
6652	/* @todo range */
6653	break;
6654	}
6655
6656	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
6657	{
6658	GLfloat position[4];
6659
6660	position[0] = -pData->direction[0];
6661	position[1] = -pData->direction[1];
6662	position[2] = -pData->direction[2];
6663	position[3] = 0.0f;
6664
6665	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
6666	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6667
6668	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
6669	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6670
6671	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
6672	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6673	break;
6674	}
6675
6676	case SVGA3D_LIGHTTYPE_SPOT2:
6677	default:
6678	Log(("Unsupported light type!!\n"));
6679	return VERR_INVALID_PARAMETER;
6680	}
6681
6682	/* Restore the modelview matrix */
6683	glPopMatrix();
6684
6685	return VINF_SUCCESS;
6686	}
6687
6688	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
6689	{
6690	PVMSVGA3DCONTEXT pContext;
6691	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6692	AssertReturn(pState, VERR_NO_MEMORY);
6693
6694	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
6695
6696	if ( cid >= pState->cContexts
6697	\|\| pState->papContexts[cid]->id != cid)
6698	{
6699	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
6700	return VERR_INVALID_PARAMETER;
6701	}
6702	pContext = pState->papContexts[cid];
6703	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6704
6705	/* Store for vm state save/restore */
6706	if (index < SVGA3D_MAX_LIGHTS)
6707	pContext->state.aLightData[index].fEnabled = !!enabled;
6708	else
6709	AssertFailed();
6710
6711	if (enabled)
6712	{
6713	/* Load the default settings if none have been set yet. */
6714	if (!pContext->state.aLightData[index].fValidData)
6715	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
6716	glEnable(GL_LIGHT0 + index);
6717	}
6718	else
6719	glDisable(GL_LIGHT0 + index);
6720
6721	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6722	return VINF_SUCCESS;
6723	}
6724
6725	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
6726	{
6727	PVMSVGA3DCONTEXT pContext;
6728	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6729	AssertReturn(pState, VERR_NO_MEMORY);
6730
6731	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
6732
6733	if ( cid >= pState->cContexts
6734	\|\| pState->papContexts[cid]->id != cid)
6735	{
6736	Log(("vmsvga3dSetViewPort invalid context id!\n"));
6737	return VERR_INVALID_PARAMETER;
6738	}
6739	pContext = pState->papContexts[cid];
6740	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6741
6742	/* Save for vm state save/restore. */
6743	pContext->state.RectViewPort = *pRect;
6744	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
6745
6746	/* @todo y-inversion for partial viewport coordinates? */
6747	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
6748	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6749
6750	/* Reset the projection matrix as that relies on the viewport setting. */
6751	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
6752	{
6753	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
6754	}
6755	else
6756	{
6757	float matrix[16];
6758
6759	/* identity matrix if no matrix set. */
6760	memset(matrix, 0, sizeof(matrix));
6761	matrix[0] = 1.0;
6762	matrix[5] = 1.0;
6763	matrix[10] = 1.0;
6764	matrix[15] = 1.0;
6765	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
6766	}
6767
6768	return VINF_SUCCESS;
6769	}
6770
6771	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
6772	{
6773	PVMSVGA3DCONTEXT pContext;
6774	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6775	AssertReturn(pState, VERR_NO_MEMORY);
6776	double oglPlane[4];
6777
6778	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)));
6779	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
6780
6781	if ( cid >= pState->cContexts
6782	\|\| pState->papContexts[cid]->id != cid)
6783	{
6784	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
6785	return VERR_INVALID_PARAMETER;
6786	}
6787	pContext = pState->papContexts[cid];
6788	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6789
6790	/* Store for vm state save/restore. */
6791	pContext->state.aClipPlane[index].fValid = true;
6792	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
6793
6794	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
6795	oglPlane[0] = (double)plane[0];
6796	oglPlane[1] = (double)plane[1];
6797	oglPlane[2] = (double)plane[2];
6798	oglPlane[3] = (double)plane[3];
6799
6800	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
6801	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6802
6803	return VINF_SUCCESS;
6804	}
6805
6806	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
6807	{
6808	PVMSVGA3DCONTEXT pContext;
6809	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6810	AssertReturn(pState, VERR_NO_MEMORY);
6811
6812	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
6813
6814	if ( cid >= pState->cContexts
6815	\|\| pState->papContexts[cid]->id != cid)
6816	{
6817	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
6818	return VERR_INVALID_PARAMETER;
6819	}
6820	pContext = pState->papContexts[cid];
6821	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6822
6823	/* Store for vm state save/restore. */
6824	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
6825	pContext->state.RectScissor = *pRect;
6826
6827	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
6828	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6829
6830	return VINF_SUCCESS;
6831	}
6832
6833	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
6834	{
6835	/* Convert byte color components to float (0-1.0) */
6836	*pAlpha = (GLfloat)(color >> 24) / 255.0;
6837	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
6838	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
6839	*pBlue = (GLfloat)(color & 0xff) / 255.0;
6840	}
6841
6842	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
6843	uint32_t cRects, SVGA3dRect *pRect)
6844	{
6845	GLbitfield mask = 0;
6846	PVMSVGA3DCONTEXT pContext;
6847	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6848	AssertReturn(pState, VERR_NO_MEMORY);
6849	GLboolean fDepthWriteEnabled = GL_FALSE;
6850
6851	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));
6852
6853	if ( cid >= pState->cContexts
6854	\|\| pState->papContexts[cid]->id != cid)
6855	{
6856	Log(("vmsvga3dCommandClear invalid context id!\n"));
6857	return VERR_INVALID_PARAMETER;
6858	}
6859	pContext = pState->papContexts[cid];
6860	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6861
6862	if (clearFlag & SVGA3D_CLEAR_COLOR)
6863	{
6864	GLfloat red, green, blue, alpha;
6865
6866	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
6867
6868	/* Set the color clear value. */
6869	glClearColor(red, green, blue, alpha);
6870
6871	mask \|= GL_COLOR_BUFFER_BIT;
6872	}
6873	if (clearFlag & SVGA3D_CLEAR_STENCIL)
6874	{
6875	/* @todo possibly the same problem as with glDepthMask */
6876	glClearStencil(stencil);
6877	mask \|= GL_STENCIL_BUFFER_BIT;
6878	}
6879	if (clearFlag & SVGA3D_CLEAR_DEPTH)
6880	{
6881	glClearDepth((GLdouble)depth);
6882	mask \|= GL_DEPTH_BUFFER_BIT;
6883
6884	/* glClear will not clear the depth buffer if writing is disabled. */
6885	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
6886	if (fDepthWriteEnabled == GL_FALSE)
6887	glDepthMask(GL_TRUE);
6888	}
6889
6890	if (cRects)
6891	{
6892	/* Save the current scissor test bit and scissor box. */
6893	glPushAttrib(GL_SCISSOR_BIT);
6894	glEnable(GL_SCISSOR_TEST);
6895	for (unsigned i=0; i < cRects; i++)
6896	{
6897	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));
6898	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
6899	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6900	glClear(mask);
6901	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6902	}
6903	/* Restore the old scissor test bit and box */
6904	glPopAttrib();
6905	}
6906	else
6907	{
6908	glClear(mask);
6909	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6910	}
6911
6912	/* Restore depth write state. */
6913	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
6914	&& fDepthWriteEnabled == GL_FALSE)
6915	glDepthMask(GL_FALSE);
6916
6917	return VINF_SUCCESS;
6918	}
6919
6920	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
6921	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
6922	{
6923	normalized = GL_FALSE;
6924	switch (identity.type)
6925	{
6926	case SVGA3D_DECLTYPE_FLOAT1:
6927	size = 1;
6928	type = GL_FLOAT;
6929	break;
6930	case SVGA3D_DECLTYPE_FLOAT2:
6931	size = 2;
6932	type = GL_FLOAT;
6933	break;
6934	case SVGA3D_DECLTYPE_FLOAT3:
6935	size = 3;
6936	type = GL_FLOAT;
6937	break;
6938	case SVGA3D_DECLTYPE_FLOAT4:
6939	size = 4;
6940	type = GL_FLOAT;
6941	break;
6942
6943	case SVGA3D_DECLTYPE_D3DCOLOR:
6944	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
6945	type = GL_UNSIGNED_BYTE;
6946	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
6947	break;
6948
6949	case SVGA3D_DECLTYPE_UBYTE4N:
6950	normalized = GL_TRUE;
6951	/* no break */
6952	case SVGA3D_DECLTYPE_UBYTE4:
6953	size = 4;
6954	type = GL_UNSIGNED_BYTE;
6955	break;
6956
6957	case SVGA3D_DECLTYPE_SHORT2N:
6958	normalized = GL_TRUE;
6959	/* no break */
6960	case SVGA3D_DECLTYPE_SHORT2:
6961	size = 2;
6962	type = GL_SHORT;
6963	break;
6964
6965	case SVGA3D_DECLTYPE_SHORT4N:
6966	normalized = GL_TRUE;
6967	/* no break */
6968	case SVGA3D_DECLTYPE_SHORT4:
6969	size = 4;
6970	type = GL_SHORT;
6971	break;
6972
6973	case SVGA3D_DECLTYPE_USHORT4N:
6974	normalized = GL_TRUE;
6975	size = 4;
6976	type = GL_UNSIGNED_SHORT;
6977	break;
6978
6979	case SVGA3D_DECLTYPE_USHORT2N:
6980	normalized = GL_TRUE;
6981	size = 2;
6982	type = GL_UNSIGNED_SHORT;
6983	break;
6984
6985	case SVGA3D_DECLTYPE_UDEC3:
6986	size = 3;
6987	type = GL_UNSIGNED_INT_2_10_10_10_REV; /* @todo correct? */
6988	break;
6989
6990	case SVGA3D_DECLTYPE_DEC3N:
6991	normalized = true;
6992	size = 3;
6993	type = GL_INT_2_10_10_10_REV; /* @todo correct? */
6994	break;
6995
6996	case SVGA3D_DECLTYPE_FLOAT16_2:
6997	size = 2;
6998	type = GL_HALF_FLOAT;
6999	break;
7000	case SVGA3D_DECLTYPE_FLOAT16_4:
7001	size = 4;
7002	type = GL_HALF_FLOAT;
7003	break;
7004	default:
7005	AssertFailedReturn(VERR_INVALID_PARAMETER);
7006	}
7007
7008	//pVertexElement->Method = identity.method;
7009	//pVertexElement->Usage = identity.usage;
7010
7011	return VINF_SUCCESS;
7012	}
7013
7014	/* Convert VMWare primitive type to its OpenGL equivalent. */
7015	/* Calculate the vertex count based on the primitive type and nr of primitives. */
7016	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
7017	{
7018	switch (PrimitiveType)
7019	{
7020	case SVGA3D_PRIMITIVE_TRIANGLELIST:
7021	*pMode = GL_TRIANGLES;
7022	pcVertices = cPrimitiveCount 3;
7023	break;
7024	case SVGA3D_PRIMITIVE_POINTLIST:
7025	*pMode = GL_POINTS;
7026	*pcVertices = cPrimitiveCount;
7027	break;
7028	case SVGA3D_PRIMITIVE_LINELIST:
7029	*pMode = GL_LINES;
7030	pcVertices = cPrimitiveCount 2;
7031	break;
7032	case SVGA3D_PRIMITIVE_LINESTRIP:
7033	*pMode = GL_LINE_STRIP;
7034	*pcVertices = cPrimitiveCount + 1;
7035	break;
7036	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
7037	*pMode = GL_TRIANGLE_STRIP;
7038	*pcVertices = cPrimitiveCount + 2;
7039	break;
7040	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
7041	*pMode = GL_TRIANGLE_FAN;
7042	*pcVertices = cPrimitiveCount + 2;
7043	break;
7044	default:
7045	return VERR_INVALID_PARAMETER;
7046	}
7047	return VINF_SUCCESS;
7048	}
7049
7050	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
7051	{
7052	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
7053	PVMSVGA3DSURFACE pVertexSurface;
7054
7055	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
7056	AssertReturn(sidVertex < pState->cSurfaces && pState->papSurfaces[sidVertex]->id == sidVertex, VERR_INVALID_PARAMETER);
7057
7058	pVertexSurface = pState->papSurfaces[sidVertex];
7059	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
7060
7061	/* Create and/or bind the vertex buffer. */
7062	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
7063	{
7064	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
7065	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
7066	PVMSVGA3DCONTEXT pSavedCtx = pContext;
7067	pContext = &pState->SharedCtx;
7068	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7069	#endif
7070
7071	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
7072	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7073
7074	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
7075	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7076
7077	Assert(pVertexSurface->fDirty);
7078	/* @todo rethink usage dynamic/static */
7079	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
7080	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7081
7082	pVertexSurface->pMipmapLevels[0].fDirty = false;
7083	pVertexSurface->fDirty = false;
7084
7085	pVertexSurface->flags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
7086
7087	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
7088	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
7089	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7090
7091	pContext = pSavedCtx;
7092	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7093	#endif
7094	}
7095	#ifndef VMSVGA3D_OGL_WITH_SHARED_CTX
7096	else
7097	#endif
7098	{
7099	Assert(pVertexSurface->fDirty == false);
7100	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
7101	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7102	}
7103	#ifndef VMSVGA3D_OGL_WITH_SHARED_CTX
7104	pVertexSurface->idAssociatedContext = pContext->id;
7105	LogFlow(("vmsvga3dDrawPrimitivesProcessVertexDecls: sid=%x idAssociatedContext %#x -> %#x\n", pVertexSurface->id, pVertexSurface->idAssociatedContext, pContext->id));
7106	#endif
7107
7108	/* Setup the vertex declarations. */
7109	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
7110	{
7111	GLint size;
7112	GLenum type;
7113	GLboolean normalized;
7114	GLuint index = iVertexDeclBase + iVertex;
7115
7116	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));
7117
7118	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
7119	AssertRCReturn(rc, rc);
7120
7121	if (pContext->state.shidVertex != SVGA_ID_INVALID)
7122	{
7123	/* Use numbered vertex arrays when shaders are active. */
7124	pState->ext.glEnableVertexAttribArray(index);
7125	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7126	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
7127	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
7128	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7129	/* case SVGA3D_DECLUSAGE_COLOR: @todo color component order not identical!! test GL_BGRA!! */
7130	}
7131	else
7132	{
7133	/* Use the predefined selection of vertex streams for the fixed pipeline. */
7134	switch (pVertexDecl[iVertex].identity.usage)
7135	{
7136	case SVGA3D_DECLUSAGE_POSITION:
7137	glEnableClientState(GL_VERTEX_ARRAY);
7138	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7139	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
7140	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
7141	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7142	break;
7143	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
7144	AssertFailed();
7145	break;
7146	case SVGA3D_DECLUSAGE_BLENDINDICES:
7147	AssertFailed();
7148	break;
7149	case SVGA3D_DECLUSAGE_NORMAL:
7150	glEnableClientState(GL_NORMAL_ARRAY);
7151	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7152	glNormalPointer(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_PSIZE:
7157	AssertFailed();
7158	break;
7159	case SVGA3D_DECLUSAGE_TEXCOORD:
7160	/* Specify the affected texture unit. */
7161	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
7162	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
7163	#else
7164	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
7165	#endif
7166	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
7167	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7168	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
7169	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
7170	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7171	break;
7172	case SVGA3D_DECLUSAGE_TANGENT:
7173	AssertFailed();
7174	break;
7175	case SVGA3D_DECLUSAGE_BINORMAL:
7176	AssertFailed();
7177	break;
7178	case SVGA3D_DECLUSAGE_TESSFACTOR:
7179	AssertFailed();
7180	break;
7181	case SVGA3D_DECLUSAGE_POSITIONT:
7182	AssertFailed(); /* see position_transformed in Wine */
7183	break;
7184	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
7185	glEnableClientState(GL_COLOR_ARRAY);
7186	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7187	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
7188	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
7189	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7190	break;
7191	case SVGA3D_DECLUSAGE_FOG:
7192	glEnableClientState(GL_FOG_COORD_ARRAY);
7193	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7194	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
7195	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
7196	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7197	break;
7198	case SVGA3D_DECLUSAGE_DEPTH:
7199	AssertFailed();
7200	break;
7201	case SVGA3D_DECLUSAGE_SAMPLE:
7202	AssertFailed();
7203	break;
7204	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
7205	}
7206	}
7207
7208	#ifdef LOG_ENABLED
7209	if (pVertexDecl[iVertex].array.stride == 0)
7210	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
7211	#endif
7212	}
7213
7214	return VINF_SUCCESS;
7215	}
7216
7217	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
7218	{
7219	/* Setup the vertex declarations. */
7220	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
7221	{
7222	if (pContext->state.shidVertex != SVGA_ID_INVALID)
7223	{
7224	/* Use numbered vertex arrays when shaders are active. */
7225	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
7226	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7227	}
7228	else
7229	{
7230	/* Use the predefined selection of vertex streams for the fixed pipeline. */
7231	switch (pVertexDecl[iVertex].identity.usage)
7232	{
7233	case SVGA3D_DECLUSAGE_POSITION:
7234	glDisableClientState(GL_VERTEX_ARRAY);
7235	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7236	break;
7237	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
7238	break;
7239	case SVGA3D_DECLUSAGE_BLENDINDICES:
7240	break;
7241	case SVGA3D_DECLUSAGE_NORMAL:
7242	glDisableClientState(GL_NORMAL_ARRAY);
7243	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7244	break;
7245	case SVGA3D_DECLUSAGE_PSIZE:
7246	break;
7247	case SVGA3D_DECLUSAGE_TEXCOORD:
7248	/* Specify the affected texture unit. */
7249	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
7250	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
7251	#else
7252	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
7253	#endif
7254	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
7255	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7256	break;
7257	case SVGA3D_DECLUSAGE_TANGENT:
7258	break;
7259	case SVGA3D_DECLUSAGE_BINORMAL:
7260	break;
7261	case SVGA3D_DECLUSAGE_TESSFACTOR:
7262	break;
7263	case SVGA3D_DECLUSAGE_POSITIONT:
7264	break;
7265	case SVGA3D_DECLUSAGE_COLOR: /* @todo color component order not identical!! */
7266	glDisableClientState(GL_COLOR_ARRAY);
7267	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7268	break;
7269	case SVGA3D_DECLUSAGE_FOG:
7270	glDisableClientState(GL_FOG_COORD_ARRAY);
7271	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7272	break;
7273	case SVGA3D_DECLUSAGE_DEPTH:
7274	break;
7275	case SVGA3D_DECLUSAGE_SAMPLE:
7276	break;
7277	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
7278	}
7279	}
7280	}
7281	/* Unbind the vertex buffer after usage. */
7282	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
7283	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7284	return VINF_SUCCESS;
7285	}
7286
7287	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl pVertexDecl, uint32_t numRanges, SVGA3dPrimitiveRange pRange, uint32_t cVertexDivisor, SVGA3dVertexDivisor *pVertexDivisor)
7288	{
7289	PVMSVGA3DCONTEXT pContext;
7290	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
7291	AssertReturn(pState, VERR_INTERNAL_ERROR);
7292	int rc = VERR_NOT_IMPLEMENTED;
7293	uint32_t iCurrentVertex;
7294
7295	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
7296
7297	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
7298	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
7299	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
7300	/* @todo */
7301	Assert(!cVertexDivisor);
7302
7303	if ( cid >= pState->cContexts
7304	\|\| pState->papContexts[cid]->id != cid)
7305	{
7306	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
7307	return VERR_INVALID_PARAMETER;
7308	}
7309	pContext = pState->papContexts[cid];
7310	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7311
7312	/* Flush any shader changes. */
7313	if (pContext->pShaderContext)
7314	{
7315	uint32_t rtHeight = 0;
7316
7317	if (pContext->sidRenderTarget != SVGA_ID_INVALID)
7318	{
7319	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->sidRenderTarget];
7320	rtHeight = pRenderTarget->pMipmapLevels[0].size.height;
7321	}
7322
7323	ShaderUpdateState(pContext->pShaderContext, rtHeight);
7324	}
7325
7326	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
7327	iCurrentVertex = 0;
7328	while (iCurrentVertex < numVertexDecls)
7329	{
7330	uint32_t sidVertex = SVGA_ID_INVALID;
7331	uint32_t iVertex;
7332
7333	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
7334	{
7335	if ( sidVertex != SVGA_ID_INVALID
7336	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
7337	)
7338	break;
7339	sidVertex = pVertexDecl[iVertex].array.surfaceId;
7340	}
7341
7342	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pState, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
7343	AssertRCReturn(rc, rc);
7344
7345	iCurrentVertex = iVertex;
7346	}
7347
7348	/* Now draw the primitives. */
7349	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
7350	{
7351	GLenum modeDraw;
7352	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
7353	PVMSVGA3DSURFACE pIndexSurface = NULL;
7354	unsigned cVertices;
7355
7356	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
7357	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
7358	if (RT_FAILURE(rc))
7359	{
7360	AssertRC(rc);
7361	goto internal_error;
7362	}
7363
7364	if (sidIndex != SVGA3D_INVALID_ID)
7365	{
7366	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
7367
7368	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
7369	\|\| sidIndex >= pState->cSurfaces
7370	\|\| pState->papSurfaces[sidIndex]->id != sidIndex)
7371	{
7372	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
7373	Assert(sidIndex < pState->cSurfaces && pState->papSurfaces[sidIndex]->id == sidIndex);
7374	rc = VERR_INVALID_PARAMETER;
7375	goto internal_error;
7376	}
7377	pIndexSurface = pState->papSurfaces[sidIndex];
7378	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
7379
7380	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
7381	{
7382	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
7383	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
7384	pContext = &pState->SharedCtx;
7385	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7386	#endif
7387
7388	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
7389	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7390
7391	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
7392	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7393
7394	Assert(pIndexSurface->fDirty);
7395
7396	/* @todo rethink usage dynamic/static */
7397	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
7398	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7399
7400	pIndexSurface->pMipmapLevels[0].fDirty = false;
7401	pIndexSurface->fDirty = false;
7402
7403	pIndexSurface->flags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
7404
7405	#ifdef VMSVGA3D_OGL_WITH_SHARED_CTX
7406	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
7407	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7408
7409	pContext = pState->papContexts[cid];
7410	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7411	#endif
7412	}
7413	#ifndef VMSVGA3D_OGL_WITH_SHARED_CTX
7414	else
7415	#endif
7416	{
7417	Assert(pIndexSurface->fDirty == false);
7418
7419	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
7420	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7421	}
7422	#ifndef VMSVGA3D_OGL_WITH_SHARED_CTX
7423	LogFlow(("vmsvga3dDrawPrimitives: sid=%x idAssociatedContext %#x -> %#x\n", pIndexSurface->id, pIndexSurface->idAssociatedContext, pContext->id));
7424	pIndexSurface->idAssociatedContext = pContext->id;
7425	#endif
7426	}
7427
7428	if (!pIndexSurface)
7429	{
7430	/* Render without an index buffer */
7431	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
7432	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
7433	}
7434	else
7435	{
7436	Assert(pRange[iPrimitive].indexBias >= 0); /* @todo */
7437	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
7438
7439	/* Render with an index buffer */
7440	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));
7441	if (pRange[iPrimitive].indexBias == 0)
7442	glDrawElements(modeDraw,
7443	cVertices,
7444	(pRange[iPrimitive].indexWidth == sizeof(uint16_t)) ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
7445	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
7446	else
7447	pState->ext.glDrawElementsBaseVertex(modeDraw,
7448	cVertices,
7449	(pRange[iPrimitive].indexWidth == sizeof(uint16_t)) ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
7450	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
7451	pRange[iPrimitive].indexBias); /* basevertex */
7452
7453	/* Unbind the index buffer after usage. */
7454	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
7455	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7456	}
7457	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7458	}
7459
7460	internal_error:
7461
7462	/* Deactivate the vertex declarations. */
7463	iCurrentVertex = 0;
7464	while (iCurrentVertex < numVertexDecls)
7465	{
7466	uint32_t sidVertex = SVGA_ID_INVALID;
7467	uint32_t iVertex;
7468
7469	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
7470	{
7471	if ( sidVertex != SVGA_ID_INVALID
7472	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
7473	)
7474	break;
7475	sidVertex = pVertexDecl[iVertex].array.surfaceId;
7476	}
7477
7478	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pState, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
7479	AssertRCReturn(rc, rc);
7480
7481	iCurrentVertex = iVertex;
7482	}
7483	#ifdef DEBUG
7484	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTexture); i++)
7485	{
7486	if (pContext->aSidActiveTexture[i] != SVGA3D_INVALID_ID)
7487	{
7488	GLint activeTexture = 0;
7489	GLint activeTextureUnit = 0;
7490
7491	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
7492	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
7493	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
7494	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
7495
7496	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
7497	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
7498	pState->ext.glActiveTexture(activeTextureUnit);
7499	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
7500
7501	# 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. */
7502	if (pContext->aSidActiveTexture[activeTextureUnit - GL_TEXTURE0] != SVGA3D_INVALID_ID)
7503	{
7504	PVMSVGA3DSURFACE pTexture;
7505	pTexture = pState->papSurfaces[pContext->aSidActiveTexture[activeTextureUnit - GL_TEXTURE0]];
7506
7507	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture, ("%x vs %x unit %d - %d\n", pTexture->oglId.texture, activeTexture, i, activeTextureUnit - GL_TEXTURE0));
7508	}
7509	# else
7510	PVMSVGA3DSURFACE pTexture = pState->papSurfaces[pContext->aSidActiveTexture[i]];
7511	AssertMsg(pTexture->id == pContext->aSidActiveTexture[i], ("%x vs %x\n", pTexture->id == pContext->aSidActiveTexture[i]));
7512	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
7513	("%x vs %x unit %d (active unit %d) sid=%x\n", pTexture->oglId.texture, activeTexture, i,
7514	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTexture[i]));
7515	# endif
7516	}
7517	}
7518	#endif
7519
7520	#ifdef DEBUG_GFX_WINDOW
7521	if (pContext->aSidActiveTexture[0])
7522	{
7523	SVGA3dCopyRect rect;
7524
7525	rect.srcx = rect.srcy = rect.x = rect.y = 0;
7526	rect.w = 800;
7527	rect.h = 600;
7528	vmsvga3dCommandPresent(pThis, pContext->sidRenderTarget, 0, NULL);
7529	}
7530	#endif
7531	return rc;
7532	}
7533
7534
7535	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
7536	{
7537	PVMSVGA3DCONTEXT pContext;
7538	PVMSVGA3DSHADER pShader;
7539	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
7540	AssertReturn(pState, VERR_NO_MEMORY);
7541	int rc;
7542
7543	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
7544	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
7545
7546	if ( cid >= pState->cContexts
7547	\|\| pState->papContexts[cid]->id != cid)
7548	{
7549	Log(("vmsvga3dShaderDefine invalid context id!\n"));
7550	return VERR_INVALID_PARAMETER;
7551	}
7552	pContext = pState->papContexts[cid];
7553	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7554
7555	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
7556	if (type == SVGA3D_SHADERTYPE_VS)
7557	{
7558	if (shid >= pContext->cVertexShaders)
7559	{
7560	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
7561	AssertReturn(pvNew, VERR_NO_MEMORY);
7562	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
7563	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
7564	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
7565	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
7566	pContext->cVertexShaders = shid + 1;
7567	}
7568	/* If one already exists with this id, then destroy it now. */
7569	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
7570	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
7571
7572	pShader = &pContext->paVertexShader[shid];
7573	}
7574	else
7575	{
7576	Assert(type == SVGA3D_SHADERTYPE_PS);
7577	if (shid >= pContext->cPixelShaders)
7578	{
7579	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
7580	AssertReturn(pvNew, VERR_NO_MEMORY);
7581	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
7582	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
7583	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
7584	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
7585	pContext->cPixelShaders = shid + 1;
7586	}
7587	/* If one already exists with this id, then destroy it now. */
7588	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
7589	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
7590
7591	pShader = &pContext->paPixelShader[shid];
7592	}
7593
7594	memset(pShader, 0, sizeof(*pShader));
7595	pShader->id = shid;
7596	pShader->cid = cid;
7597	pShader->type = type;
7598	pShader->cbData = cbData;
7599	pShader->pShaderProgram = RTMemAllocZ(cbData);
7600	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
7601	memcpy(pShader->pShaderProgram, pShaderData, cbData);
7602
7603	#ifdef DUMP_SHADER_DISASSEMBLY
7604	LPD3DXBUFFER pDisassembly;
7605	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
7606	if (hr == D3D_OK)
7607	{
7608	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
7609	pDisassembly->Release();
7610	}
7611	#endif
7612
7613	switch (type)
7614	{
7615	case SVGA3D_SHADERTYPE_VS:
7616	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
7617	break;
7618
7619	case SVGA3D_SHADERTYPE_PS:
7620	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
7621	break;
7622
7623	default:
7624	AssertFailedReturn(VERR_INVALID_PARAMETER);
7625	}
7626	if (rc != VINF_SUCCESS)
7627	{
7628	RTMemFree(pShader->pShaderProgram);
7629	memset(pShader, 0, sizeof(*pShader));
7630	pShader->id = SVGA3D_INVALID_ID;
7631	}
7632
7633	return rc;
7634	}
7635
7636	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
7637	{
7638	PVMSVGA3DCONTEXT pContext;
7639	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
7640	AssertReturn(pState, VERR_NO_MEMORY);
7641	PVMSVGA3DSHADER pShader = NULL;
7642	int rc;
7643
7644	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
7645
7646	if ( cid >= pState->cContexts
7647	\|\| pState->papContexts[cid]->id != cid)
7648	{
7649	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
7650	return VERR_INVALID_PARAMETER;
7651	}
7652	pContext = pState->papContexts[cid];
7653	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7654
7655	if (type == SVGA3D_SHADERTYPE_VS)
7656	{
7657	if ( shid < pContext->cVertexShaders
7658	&& pContext->paVertexShader[shid].id == shid)
7659	{
7660	pShader = &pContext->paVertexShader[shid];
7661	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
7662	AssertRC(rc);
7663	}
7664	}
7665	else
7666	{
7667	Assert(type == SVGA3D_SHADERTYPE_PS);
7668	if ( shid < pContext->cPixelShaders
7669	&& pContext->paPixelShader[shid].id == shid)
7670	{
7671	pShader = &pContext->paPixelShader[shid];
7672	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
7673	AssertRC(rc);
7674	}
7675	}
7676
7677	if (pShader)
7678	{
7679	if (pShader->pShaderProgram)
7680	RTMemFree(pShader->pShaderProgram);
7681	memset(pShader, 0, sizeof(*pShader));
7682	pShader->id = SVGA3D_INVALID_ID;
7683	}
7684	else
7685	AssertFailedReturn(VERR_INVALID_PARAMETER);
7686
7687	return VINF_SUCCESS;
7688	}
7689
7690	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
7691	{
7692	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
7693	AssertReturn(pState, VERR_NO_MEMORY);
7694	int rc;
7695
7696	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
7697
7698	if ( !pContext
7699	&& cid < pState->cContexts
7700	&& pState->papContexts[cid]->id == cid)
7701	pContext = pState->papContexts[cid];
7702	else if (!pContext)
7703	{
7704	AssertMsgFailed(("cid=%#x cContexts=%#x\n", cid, pState->cContexts));
7705	Log(("vmsvga3dShaderSet invalid context id!\n"));
7706	return VERR_INVALID_PARAMETER;
7707	}
7708	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7709
7710	if (type == SVGA3D_SHADERTYPE_VS)
7711	{
7712	/* Save for vm state save/restore. */
7713	pContext->state.shidVertex = shid;
7714	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
7715
7716	if ( shid < pContext->cVertexShaders
7717	&& pContext->paVertexShader[shid].id == shid)
7718	{
7719	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
7720	Assert(type == pShader->type);
7721
7722	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
7723	AssertRCReturn(rc, rc);
7724	}
7725	else
7726	if (shid == SVGA_ID_INVALID)
7727	{
7728	/* Unselect shader. */
7729	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
7730	AssertRCReturn(rc, rc);
7731	}
7732	else
7733	AssertFailedReturn(VERR_INVALID_PARAMETER);
7734	}
7735	else
7736	{
7737	/* Save for vm state save/restore. */
7738	pContext->state.shidPixel = shid;
7739	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
7740
7741	Assert(type == SVGA3D_SHADERTYPE_PS);
7742	if ( shid < pContext->cPixelShaders
7743	&& pContext->paPixelShader[shid].id == shid)
7744	{
7745	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
7746	Assert(type == pShader->type);
7747
7748	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
7749	AssertRCReturn(rc, rc);
7750	}
7751	else
7752	if (shid == SVGA_ID_INVALID)
7753	{
7754	/* Unselect shader. */
7755	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
7756	AssertRCReturn(rc, rc);
7757	}
7758	else
7759	AssertFailedReturn(VERR_INVALID_PARAMETER);
7760	}
7761
7762	return VINF_SUCCESS;
7763	}
7764
7765	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
7766	{
7767	PVMSVGA3DCONTEXT pContext;
7768	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
7769	AssertReturn(pState, VERR_NO_MEMORY);
7770	int rc;
7771
7772	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
7773
7774	if ( cid >= pState->cContexts
7775	\|\| pState->papContexts[cid]->id != cid)
7776	{
7777	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
7778	return VERR_INVALID_PARAMETER;
7779	}
7780	pContext = pState->papContexts[cid];
7781	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7782
7783	for (uint32_t i = 0; i < cRegisters; i++)
7784	{
7785	#ifdef LOG_ENABLED
7786	switch (ctype)
7787	{
7788	case SVGA3D_CONST_TYPE_FLOAT:
7789	{
7790	float pValuesF = (float )pValues;
7791	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)));
7792	break;
7793	}
7794
7795	case SVGA3D_CONST_TYPE_INT:
7796	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
7797	break;
7798
7799	case SVGA3D_CONST_TYPE_BOOL:
7800	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
7801	break;
7802	}
7803	#endif
7804	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
7805	}
7806
7807	switch (type)
7808	{
7809	case SVGA3D_SHADERTYPE_VS:
7810	switch (ctype)
7811	{
7812	case SVGA3D_CONST_TYPE_FLOAT:
7813	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
7814	break;
7815
7816	case SVGA3D_CONST_TYPE_INT:
7817	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
7818	break;
7819
7820	case SVGA3D_CONST_TYPE_BOOL:
7821	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
7822	break;
7823
7824	default:
7825	AssertFailedReturn(VERR_INVALID_PARAMETER);
7826	}
7827	AssertRCReturn(rc, rc);
7828	break;
7829
7830	case SVGA3D_SHADERTYPE_PS:
7831	switch (ctype)
7832	{
7833	case SVGA3D_CONST_TYPE_FLOAT:
7834	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
7835	break;
7836
7837	case SVGA3D_CONST_TYPE_INT:
7838	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
7839	break;
7840
7841	case SVGA3D_CONST_TYPE_BOOL:
7842	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
7843	break;
7844
7845	default:
7846	AssertFailedReturn(VERR_INVALID_PARAMETER);
7847	}
7848	AssertRCReturn(rc, rc);
7849	break;
7850
7851	default:
7852	AssertFailedReturn(VERR_INVALID_PARAMETER);
7853	}
7854
7855	return VINF_SUCCESS;
7856	}
7857
7858
7859	int vmsvga3dQueryBegin(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type)
7860	{
7861	AssertFailed();
7862	return VERR_NOT_IMPLEMENTED;
7863	}
7864
7865	int vmsvga3dQueryEnd(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
7866	{
7867	AssertFailed();
7868	return VERR_NOT_IMPLEMENTED;
7869	}
7870
7871	int vmsvga3dQueryWait(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
7872	{
7873	AssertFailed();
7874	return VERR_NOT_IMPLEMENTED;
7875	}
7876

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 57135

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