DevVGA-SVGA3d-ogl.cpp@ 53775

Last change on this file since 53775 was 53756, checked in by vboxsync, 10 years ago
vmsvgaGMRTransfer: Display detail in buffer overflow assertions.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 261.8 KB

Line
1	/* $Id: DevVGA-SVGA3d-ogl.cpp 53756 2015-01-06 23:28:38Z vboxsync $ */
2	/** @file
3	* DevVMWare - VMWare SVGA device
4	*/
5
6	/*
7	* Copyright (C) 2013-2015 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*******************************************************************************
20	* Header Files *
21	*******************************************************************************/
22	#define LOG_GROUP LOG_GROUP_DEV_VMSVGA
23	#include <VBox/vmm/pdmdev.h>
24	#include <VBox/version.h>
25	#include <VBox/err.h>
26	#include <VBox/log.h>
27	#include <VBox/vmm/pgm.h>
28
29	#include <iprt/assert.h>
30	#include <iprt/semaphore.h>
31	#include <iprt/uuid.h>
32	#include <iprt/mem.h>
33	#include <iprt/avl.h>
34
35	#include <VBox/VMMDev.h>
36	#include <VBox/VBoxVideo.h>
37	#include <VBox/bioslogo.h>
38
39	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
40	#include "DevVGA.h"
41
42	#include "DevVGA-SVGA.h"
43	#include "DevVGA-SVGA3d.h"
44	#include "vmsvga/svga_reg.h"
45	#include "vmsvga/svga3d_reg.h"
46	#include "vmsvga/svga3d_shaderdefs.h"
47
48	#ifdef RT_OS_WINDOWS
49	# include <GL/gl.h>
50	# include "vmsvga_glext/wglext.h"
51
52	#elif defined(RT_OS_DARWIN)
53	# include <OpenGL/OpenGL.h>
54	# include <OpenGL/gl3.h>
55	# include <OpenGL/gl3ext.h>
56	# define GL_DO_NOT_WARN_IF_MULTI_GL_VERSION_HEADERS_INCLUDED
57	# include <OpenGL/gl.h>
58	# include <OpenGL/glext.h>
59	# include "DevVGA-SVGA3d-cocoa.h"
60	/* work around conflicting definition of GLhandleARB in VMware's glext.h */
61	//#define GL_ARB_shader_objects
62	// HACK
63	typedef void (APIENTRYP PFNGLFOGCOORDPOINTERPROC) (GLenum type, GLsizei stride, const GLvoid *pointer);
64	typedef void (APIENTRYP PFNGLCLIENTACTIVETEXTUREPROC) (GLenum texture);
65	typedef void (APIENTRYP PFNGLGETPROGRAMIVARBPROC) (GLenum target, GLenum pname, GLint *params);
66	# define GL_RGBA_S3TC 0x83A2
67	# define GL_ALPHA8_EXT 0x803c
68	# define GL_LUMINANCE8_EXT 0x8040
69	# define GL_LUMINANCE16_EXT 0x8042
70	# define GL_LUMINANCE4_ALPHA4_EXT 0x8043
71	# define GL_LUMINANCE8_ALPHA8_EXT 0x8045
72	# define GL_INT_2_10_10_10_REV 0x8D9F
73	#else
74	# include <X11/Xlib.h>
75	# include <X11/Xatom.h>
76	# include <GL/gl.h>
77	# include <GL/glx.h>
78	# include <GL/glext.h>
79	//HACK FOR NOW
80	typedef void (APIENTRYP PFNGLCLIENTACTIVETEXTUREPROC) (GLenum texture);
81	#endif
82	#include "vmsvga_glext/glext.h"
83
84	#include "shaderlib/shaderlib.h"
85
86	#include <stdlib.h>
87	#include <math.h>
88	#include <float.h>
89
90
91	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
92	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
93	#ifdef RT_OS_DARWIN
94	extern "C" int ExplicitlyLoadVBoxSVGA3DObjC(bool fResolveAllImports, PRTERRINFO pErrInfo);
95	#endif
96
97
98	/*******************************************************************************
99	* Defined Constants And Macros *
100	*******************************************************************************/
101	#ifndef VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE
102	# define VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE 1.0
103	#endif
104
105	#ifdef RT_OS_WINDOWS
106	# define OGLGETPROCADDRESS wglGetProcAddress
107
108	#elif defined(RT_OS_DARWIN)
109	# include <dlfcn.h>
110	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
111	/** Resolves an OpenGL symbol. */
112	static void MyNSGLGetProcAddress(const char pszSymbol)
113	{
114	/* Another copy in shaderapi.c. */
115	static void *s_pvImage = NULL;
116	if (s_pvImage == NULL)
117	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
118	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
119	}
120
121	#else
122	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
123	#endif
124
125	/* Invert y-coordinate for OpenGL's bottom left origin. */
126	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->pMipmapLevels[0].size.height - (y_coordinate))
127	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
128
129	#define OPENGL_INVALID_ID 0
130
131	//#define MANUAL_FLIP_SURFACE_DATA
132	/* Enable to render the result of DrawPrimitive in a seperate window. */
133	//#define DEBUG_GFX_WINDOW
134
135	#define VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState) \
136	do { (pState)->idActiveContext = OPENGL_INVALID_ID; } while (0)
137
138	/** @def VMSVGA3D_SET_CURRENT_CONTEXT
139	* Makes sure the @a pContext is the active OpenGL context.
140	* @parm pState The VMSVGA3d state.
141	* @parm pContext The new context.
142	*/
143	#ifdef RT_OS_WINDOWS
144	# define VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext) \
145	if ((pState)->idActiveContext != pContext->id) \
146	{ \
147	BOOL fMakeCurrentRc = wglMakeCurrent((pContext)->hdc, (pContext)->hglrc); \
148	Assert(fMakeCurrentRc == TRUE); \
149	pState->idActiveContext = (pContext)->id; \
150	} else do { } while (0)
151
152	#elif defined(RT_OS_DARWIN)
153	# define VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext) \
154	if ((pState)->idActiveContext != (pContext)->id) \
155	{ \
156	vmsvga3dCocoaViewMakeCurrentContext((pContext)->cocoaView, (pContext)->cocoaContext); \
157	(pState)->idActiveContext = (pContext)->id; \
158	} else do { } while (0)
159	#else
160	# define VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext) \
161	if ((pState)->idActiveContext != (pContext)->id) \
162	{ \
163	Bool fMakeCurrentRc = glXMakeCurrent((pState)->display, \
164	(pContext)->window, \
165	(pContext)->glxContext); \
166	Assert(fMakeCurrentRc == True); \
167	(pState)->idActiveContext = (pContext)->id; \
168	} else do { } while (0)
169	#endif
170
171	/** @def VMSVGA3D_CHECK_LAST_ERROR
172	* Checks that the last OpenGL error code indicates success.
173	*
174	* Will assert and return VERR_INTERNAL_ERROR in strict builds, in other
175	* builds it will do nothing and is a NOOP.
176	*
177	* @parm pState The VMSVGA3d state.
178	* @parm pContext The new context.
179	*
180	* @todo Revamp this to include the OpenGL operation so we can see what went
181	* wrong. Maybe include a few of the first occurances in the release
182	* log of regular builds.
183	*/
184	#ifdef VBOX_STRICT
185	# define VMSVGA3D_CHECK_LAST_ERROR(pState, pContext) do { \
186	Assert((pState)->idActiveContext == (pContext)->id); \
187	(pContext)->lastError = glGetError(); \
188	AssertMsgReturn((pContext)->lastError == GL_NO_ERROR, \
189	("%s (%d): last error 0x%x\n", __FUNCTION__, __LINE__, (pContext)->lastError), \
190	VERR_INTERNAL_ERROR); \
191	} while (0)
192	#else
193	# define VMSVGA3D_CHECK_LAST_ERROR(pState, pContext) do { } while (0)
194	#endif
195
196	/** @def VMSVGA3D_CHECK_LAST_ERROR_WARN
197	* Checks that the last OpenGL error code indicates success.
198	*
199	* Will assert in strict builds, otherwise it's a NOOP.
200	*
201	* @parm pState The VMSVGA3d state.
202	* @parm pContext The new context.
203	*/
204	#ifdef VBOX_STRICT
205	# define VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext) do { \
206	Assert((pState)->idActiveContext == (pContext)->id); \
207	(pContext)->lastError = glGetError(); \
208	AssertMsg((pContext)->lastError == GL_NO_ERROR, ("%s (%d): last error 0x%x\n", __FUNCTION__, __LINE__, (pContext)->lastError)); \
209	} while (0)
210	#else
211	# define VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext) do { } while (0)
212	#endif
213
214
215	/**
216	* Macro for doing something and then checking for errors during initialization.
217	* Uses AssertLogRelMsg.
218	*/
219	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
220	do \
221	{ \
222	a_Expr; \
223	GLenum iGlError = glGetError(); \
224	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
225	} while (0)
226
227	/**
228	* Macro for doing something and then checking for errors during initialization,
229	* doing the same in the other context when enabled.
230	*
231	* This will try both profiles in dual profile builds. Caller must be in the
232	* default context.
233	*
234	* Uses AssertLogRelMsg to indicate trouble.
235	*/
236	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
237	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) \
238	do \
239	{ \
240	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
241	a_Expr; \
242	GLenum iGlError = glGetError(); \
243	if (iGlError != GL_NO_ERROR) \
244	{ \
245	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pOtherCtx); \
246	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
247	a_Expr; \
248	GLenum iGlError2 = glGetError(); \
249	AssertLogRelMsg(iGlError2 == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x / %#x\n", #a_Expr, iGlError, iGlError2)); \
250	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pContext); \
251	} \
252	} while (0)
253	#else
254	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) VMSVGA3D_INIT_CHECKED(a_Expr)
255	#endif
256
257
258	/*******************************************************************************
259	* Structures, Typedefs and Globals. *
260	*******************************************************************************/
261	typedef struct
262	{
263	SVGA3dSize size;
264	uint32_t cbSurface;
265	uint32_t cbSurfacePitch;
266	void *pSurfaceData;
267	bool fDirty;
268	} VMSVGA3DMIPMAPLEVEL, *PVMSVGA3DMIPMAPLEVEL;
269
270	/**
271	* SSM descriptor table for the VMSVGA3DMIPMAPLEVEL structure.
272	*/
273	static SSMFIELD const g_aVMSVGA3DMIPMAPLEVELFields[] =
274	{
275	SSMFIELD_ENTRY( VMSVGA3DMIPMAPLEVEL, size),
276	SSMFIELD_ENTRY( VMSVGA3DMIPMAPLEVEL, cbSurface),
277	SSMFIELD_ENTRY( VMSVGA3DMIPMAPLEVEL, cbSurfacePitch),
278	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DMIPMAPLEVEL, pSurfaceData),
279	SSMFIELD_ENTRY_IGNORE( VMSVGA3DMIPMAPLEVEL, fDirty),
280	SSMFIELD_ENTRY_TERM()
281	};
282
283	typedef struct
284	{
285	uint32_t id;
286	uint32_t idAssociatedContext;
287	uint32_t flags;
288	SVGA3dSurfaceFormat format;
289	GLint internalFormatGL;
290	GLint formatGL;
291	GLint typeGL;
292	union
293	{
294	GLuint texture;
295	GLuint buffer;
296	GLuint renderbuffer;
297	} oglId;
298	SVGA3dSurfaceFace faces[SVGA3D_MAX_SURFACE_FACES];
299	uint32_t cFaces;
300	PVMSVGA3DMIPMAPLEVEL pMipmapLevels;
301	uint32_t multiSampleCount;
302	SVGA3dTextureFilter autogenFilter;
303	uint32_t cbBlock; /* block/pixel size in bytes */
304	/* Dirty state; surface was manually updated. */
305	bool fDirty;
306	} VMSVGA3DSURFACE, *PVMSVGA3DSURFACE;
307
308	/**
309	* SSM descriptor table for the VMSVGA3DSURFACE structure.
310	*/
311	static SSMFIELD const g_aVMSVGA3DSURFACEFields[] =
312	{
313	SSMFIELD_ENTRY( VMSVGA3DSURFACE, id),
314	SSMFIELD_ENTRY( VMSVGA3DSURFACE, idAssociatedContext),
315	SSMFIELD_ENTRY( VMSVGA3DSURFACE, flags),
316	SSMFIELD_ENTRY( VMSVGA3DSURFACE, format),
317	SSMFIELD_ENTRY( VMSVGA3DSURFACE, internalFormatGL),
318	SSMFIELD_ENTRY( VMSVGA3DSURFACE, formatGL),
319	SSMFIELD_ENTRY( VMSVGA3DSURFACE, typeGL),
320	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSURFACE, id),
321	SSMFIELD_ENTRY( VMSVGA3DSURFACE, faces),
322	SSMFIELD_ENTRY( VMSVGA3DSURFACE, cFaces),
323	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSURFACE, pMipmapLevels),
324	SSMFIELD_ENTRY( VMSVGA3DSURFACE, multiSampleCount),
325	SSMFIELD_ENTRY( VMSVGA3DSURFACE, autogenFilter),
326	SSMFIELD_ENTRY( VMSVGA3DSURFACE, cbBlock),
327	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSURFACE, fDirty),
328	SSMFIELD_ENTRY_TERM()
329	};
330
331	typedef struct
332	{
333	uint32_t id;
334	uint32_t cid;
335	SVGA3dShaderType type;
336	uint32_t cbData;
337	void *pShaderProgram;
338	union
339	{
340	void *pVertexShader;
341	void *pPixelShader;
342	} u;
343	} VMSVGA3DSHADER, *PVMSVGA3DSHADER;
344
345	/**
346	* SSM descriptor table for the VMSVGA3DSHADER structure.
347	*/
348	static SSMFIELD const g_aVMSVGA3DSHADERFields[] =
349	{
350	SSMFIELD_ENTRY( VMSVGA3DSHADER, id),
351	SSMFIELD_ENTRY( VMSVGA3DSHADER, cid),
352	SSMFIELD_ENTRY( VMSVGA3DSHADER, type),
353	SSMFIELD_ENTRY( VMSVGA3DSHADER, cbData),
354	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSHADER, pShaderProgram),
355	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSHADER, u.pVertexShader),
356	SSMFIELD_ENTRY_TERM()
357	};
358
359	typedef struct
360	{
361	bool fValid;
362	float matrix[16];
363	} VMSVGATRANSFORMSTATE, *PVMSVGATRANSFORMSTATE;
364
365	typedef struct
366	{
367	bool fValid;
368	SVGA3dMaterial material;
369	} VMSVGAMATERIALSTATE, *PVMSVGAMATERIALSTATE;
370
371	typedef struct
372	{
373	bool fValid;
374	float plane[4];
375	} VMSVGACLIPPLANESTATE, *PVMSVGACLIPPLANESTATE;
376
377	typedef struct
378	{
379	bool fEnabled;
380	bool fValidData;
381	SVGA3dLightData data;
382	} VMSVGALIGHTSTATE, *PVMSVGALIGHTSTATE;
383
384	typedef struct
385	{
386	bool fValid;
387	SVGA3dShaderConstType ctype;
388	uint32_t value[4];
389	} VMSVGASHADERCONST, *PVMSVGASHADERCONST;
390
391	/**
392	* SSM descriptor table for the VMSVGASHADERCONST structure.
393	*/
394	static SSMFIELD const g_aVMSVGASHADERCONSTFields[] =
395	{
396	SSMFIELD_ENTRY( VMSVGASHADERCONST, fValid),
397	SSMFIELD_ENTRY( VMSVGASHADERCONST, ctype),
398	SSMFIELD_ENTRY( VMSVGASHADERCONST, value),
399	SSMFIELD_ENTRY_TERM()
400	};
401
402	#define VMSVGA3D_UPDATE_SCISSORRECT RT_BIT(0)
403	#define VMSVGA3D_UPDATE_ZRANGE RT_BIT(1)
404	#define VMSVGA3D_UPDATE_VIEWPORT RT_BIT(2)
405	#define VMSVGA3D_UPDATE_VERTEXSHADER RT_BIT(3)
406	#define VMSVGA3D_UPDATE_PIXELSHADER RT_BIT(4)
407	#define VMSVGA3D_UPDATE_TRANSFORM RT_BIT(5)
408	#define VMSVGA3D_UPDATE_MATERIAL RT_BIT(6)
409
410	typedef struct
411	{
412	uint32_t id;
413	#ifdef RT_OS_WINDOWS
414	/* Device context of the context window. */
415	HDC hdc;
416	/* OpenGL rendering context handle. */
417	HGLRC hglrc;
418	/* Device context window handle. */
419	HWND hwnd;
420	#elif defined(RT_OS_DARWIN)
421	/* OpenGL rendering context */
422	NativeNSOpenGLContextRef cocoaContext;
423	NativeNSViewRef cocoaView;
424	bool fOtherProfile;
425	#else
426	/** XGL rendering context handle */
427	GLXContext glxContext;
428	/** Device context window handle */
429	Window window;
430	/** flag whether the window is mapped (=visible) */
431	bool fMapped;
432	#endif
433	/* Framebuffer object associated with this context. */
434	GLuint idFramebuffer;
435	/* Read and draw framebuffer objects for various operations. */
436	GLuint idReadFramebuffer;
437	GLuint idDrawFramebuffer;
438	/* Last GL error recorded. */
439	GLenum lastError;
440
441	/* Current active render target (if any) */
442	uint32_t sidRenderTarget;
443	/* Current selected texture surfaces (if any) */
444	uint32_t aSidActiveTexture[SVGA3D_MAX_TEXTURE_STAGE];
445	/* Per context pixel and vertex shaders. */
446	uint32_t cPixelShaders;
447	PVMSVGA3DSHADER paPixelShader;
448	uint32_t cVertexShaders;
449	PVMSVGA3DSHADER paVertexShader;
450	void *pShaderContext;
451	/* Keep track of the internal state to be able to recreate the context properly (save/restore, window resize). */
452	struct
453	{
454	uint32_t u32UpdateFlags;
455
456	SVGA3dRenderState aRenderState[SVGA3D_RS_MAX];
457	SVGA3dTextureState aTextureState[SVGA3D_MAX_TEXTURE_STAGE][SVGA3D_TS_MAX];
458	VMSVGATRANSFORMSTATE aTransformState[SVGA3D_TRANSFORM_MAX];
459	VMSVGAMATERIALSTATE aMaterial[SVGA3D_FACE_MAX];
460	VMSVGACLIPPLANESTATE aClipPlane[SVGA3D_CLIPPLANE_MAX];
461	VMSVGALIGHTSTATE aLightData[SVGA3D_MAX_LIGHTS];
462
463	uint32_t aRenderTargets[SVGA3D_RT_MAX];
464	SVGA3dRect RectScissor;
465	SVGA3dRect RectViewPort;
466	SVGA3dZRange zRange;
467	uint32_t shidPixel;
468	uint32_t shidVertex;
469
470	uint32_t cPixelShaderConst;
471	PVMSVGASHADERCONST paPixelShaderConst;
472	uint32_t cVertexShaderConst;
473	PVMSVGASHADERCONST paVertexShaderConst;
474	} state;
475	} VMSVGA3DCONTEXT, *PVMSVGA3DCONTEXT;
476
477	/**
478	* SSM descriptor table for the VMSVGA3DCONTEXT structure.
479	*/
480	static SSMFIELD const g_aVMSVGA3DCONTEXTFields[] =
481	{
482	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, id),
483	#ifdef RT_OS_WINDOWS
484	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, hdc),
485	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, hglrc),
486	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, hwnd),
487	#endif
488
489	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, idFramebuffer),
490	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, idReadFramebuffer),
491	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, idDrawFramebuffer),
492	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, lastError),
493
494	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, sidRenderTarget),
495	SSMFIELD_ENTRY_IGNORE( VMSVGA3DCONTEXT, aSidActiveTexture),
496	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, cPixelShaders),
497	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DCONTEXT, paPixelShader),
498	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, cVertexShaders),
499	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DCONTEXT, paVertexShader),
500	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DCONTEXT, pShaderContext),
501	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.u32UpdateFlags),
502
503	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aRenderState),
504	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aTextureState),
505	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aTransformState),
506	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aMaterial),
507	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aClipPlane),
508	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aLightData),
509
510	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.aRenderTargets),
511	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.RectScissor),
512	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.RectViewPort),
513	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.zRange),
514	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.shidPixel),
515	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.shidVertex),
516	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.cPixelShaderConst),
517	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DCONTEXT, state.paPixelShaderConst),
518	SSMFIELD_ENTRY( VMSVGA3DCONTEXT, state.cVertexShaderConst),
519	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DCONTEXT, state.paVertexShaderConst),
520	SSMFIELD_ENTRY_TERM()
521	};
522
523	/**
524	* VMSVGA3d state data.
525	*
526	* Allocated on the heap and pointed to by VMSVGAState::p3dState.
527	*/
528	typedef struct VMSVGA3DSTATE
529	{
530	#ifdef RT_OS_WINDOWS
531	/** Window Thread. */
532	R3PTRTYPE(RTTHREAD) pWindowThread;
533	DWORD idWindowThread;
534	HMODULE hInstance;
535	/** Window request semaphore. */
536	RTSEMEVENT WndRequestSem;
537	#elif defined(RT_OS_LINUX)
538	/* The X display */
539	Display *display;
540	R3PTRTYPE(RTTHREAD) pWindowThread;
541	bool bTerminate;
542	#endif
543
544	float fGLVersion;
545	/* Current active context. */
546	uint32_t idActiveContext;
547
548	struct
549	{
550	PFNGLISRENDERBUFFERPROC glIsRenderbuffer;
551	PFNGLBINDRENDERBUFFERPROC glBindRenderbuffer;
552	PFNGLDELETERENDERBUFFERSPROC glDeleteRenderbuffers;
553	PFNGLGENRENDERBUFFERSPROC glGenRenderbuffers;
554	PFNGLRENDERBUFFERSTORAGEPROC glRenderbufferStorage;
555	PFNGLGETRENDERBUFFERPARAMETERIVPROC glGetRenderbufferParameteriv;
556	PFNGLISFRAMEBUFFERPROC glIsFramebuffer;
557	PFNGLBINDFRAMEBUFFERPROC glBindFramebuffer;
558	PFNGLDELETEFRAMEBUFFERSPROC glDeleteFramebuffers;
559	PFNGLGENFRAMEBUFFERSPROC glGenFramebuffers;
560	PFNGLCHECKFRAMEBUFFERSTATUSPROC glCheckFramebufferStatus;
561	PFNGLFRAMEBUFFERTEXTURE1DPROC glFramebufferTexture1D;
562	PFNGLFRAMEBUFFERTEXTURE2DPROC glFramebufferTexture2D;
563	PFNGLFRAMEBUFFERTEXTURE3DPROC glFramebufferTexture3D;
564	PFNGLFRAMEBUFFERRENDERBUFFERPROC glFramebufferRenderbuffer;
565	PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC glGetFramebufferAttachmentParameteriv;
566	PFNGLGENERATEMIPMAPPROC glGenerateMipmap;
567	PFNGLBLITFRAMEBUFFERPROC glBlitFramebuffer;
568	PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC glRenderbufferStorageMultisample;
569	PFNGLFRAMEBUFFERTEXTURELAYERPROC glFramebufferTextureLayer;
570	PFNGLPOINTPARAMETERFPROC glPointParameterf;
571	PFNGLBLENDEQUATIONPROC glBlendEquation;
572	PFNGLBLENDEQUATIONSEPARATEPROC glBlendEquationSeparate;
573	PFNGLBLENDFUNCSEPARATEPROC glBlendFuncSeparate;
574	PFNGLSTENCILOPSEPARATEPROC glStencilOpSeparate;
575	PFNGLSTENCILFUNCSEPARATEPROC glStencilFuncSeparate;
576	PFNGLBLENDCOLORPROC glBlendColor;
577	PFNGLBINDBUFFERPROC glBindBuffer;
578	PFNGLDELETEBUFFERSPROC glDeleteBuffers;
579	PFNGLGENBUFFERSPROC glGenBuffers;
580	PFNGLBUFFERDATAPROC glBufferData;
581	PFNGLMAPBUFFERPROC glMapBuffer;
582	PFNGLUNMAPBUFFERPROC glUnmapBuffer;
583	PFNGLENABLEVERTEXATTRIBARRAYPROC glEnableVertexAttribArray;
584	PFNGLDISABLEVERTEXATTRIBARRAYPROC glDisableVertexAttribArray;
585	PFNGLVERTEXATTRIBPOINTERPROC glVertexAttribPointer;
586	PFNGLFOGCOORDPOINTERPROC glFogCoordPointer;
587	PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC glDrawElementsInstancedBaseVertex;
588	PFNGLDRAWELEMENTSBASEVERTEXPROC glDrawElementsBaseVertex;
589	PFNGLACTIVETEXTUREPROC glActiveTexture;
590	PFNGLCLIENTACTIVETEXTUREPROC glClientActiveTexture;
591	PFNGLGETPROGRAMIVARBPROC glGetProgramivARB;
592	PFNGLPROVOKINGVERTEXPROC glProvokingVertex;
593	bool fEXT_stencil_two_side;
594	} ext;
595
596	struct
597	{
598	GLint maxActiveLights;
599	GLint maxTextureBufferSize;
600	GLint maxTextures;
601	GLint maxClipDistances;
602	GLint maxColorAttachments;
603	GLint maxRectangleTextureSize;
604	GLint maxTextureAnisotropy;
605	GLint maxVertexShaderInstructions;
606	GLint maxFragmentShaderInstructions;
607	GLint maxVertexShaderTemps;
608	GLint maxFragmentShaderTemps;
609	GLfloat flPointSize[2];
610	SVGA3dPixelShaderVersion fragmentShaderVersion;
611	SVGA3dVertexShaderVersion vertexShaderVersion;
612	bool fS3TCSupported;
613	} caps;
614
615	uint32_t cContexts;
616	PVMSVGA3DCONTEXT paContext;
617	uint32_t cSurfaces;
618	PVMSVGA3DSURFACE paSurface;
619	#ifdef DEBUG_GFX_WINDOW_TEST_CONTEXT
620	uint32_t idTestContext;
621	#endif
622	/** The GL_EXTENSIONS value (space padded) for the default OpenGL profile.
623	* Free with RTStrFree. */
624	R3PTRTYPE(char *) pszExtensions;
625
626	/** The GL_EXTENSIONS value (space padded) for the other OpenGL profile.
627	* Free with RTStrFree.
628	*
629	* This is used to detect shader model version since some implementations
630	* (darwin) hides extensions that have made it into core and probably a
631	* bunch of others when using a OpenGL core profile instead of a legacy one */
632	R3PTRTYPE(char *) pszOtherExtensions;
633	/** The version of the other GL profile. */
634	float fOtherGLVersion;
635
636	/** Shader talk back interface. */
637	VBOXVMSVGASHADERIF ShaderIf;
638	} VMSVGA3DSTATE;
639	/** Pointer to the VMSVGA3d state. */
640	typedef VMSVGA3DSTATE *PVMSVGA3DSTATE;
641
642	/**
643	* SSM descriptor table for the VMSVGA3DSTATE structure.
644	*/
645	static SSMFIELD const g_aVMSVGA3DSTATEFields[] =
646	{
647	#ifdef RT_OS_WINDOWS
648	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, pWindowThread),
649	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, idWindowThread),
650	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, hInstance),
651	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, WndRequestSem),
652	#elif defined(RT_OS_LINUX)
653	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, display),
654	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, pWindowThread),
655	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, bTerminate),
656	#endif
657	SSMFIELD_ENTRY( VMSVGA3DSTATE, fGLVersion),
658	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, idActiveContext),
659
660	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, ext),
661	SSMFIELD_ENTRY_IGNORE( VMSVGA3DSTATE, caps),
662
663	SSMFIELD_ENTRY( VMSVGA3DSTATE, cContexts),
664	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, paContext),
665	SSMFIELD_ENTRY( VMSVGA3DSTATE, cSurfaces),
666	SSMFIELD_ENTRY_IGN_HCPTR( VMSVGA3DSTATE, paSurface),
667	SSMFIELD_ENTRY_TERM()
668	};
669
670
671	/* Define the default light parameters as specified by MSDN. */
672	/* @todo move out; fetched from Wine */
673	const SVGA3dLightData vmsvga3d_default_light =
674	{
675	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
676	false, /* inWorldSpace */
677	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
678	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
679	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
680	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
681	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
682	0.0f, /* range */
683	0.0f, /* falloff */
684	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
685	0.0f, /* theta */
686	0.0f /* phi */
687	};
688
689	RT_C_DECLS_BEGIN
690	static int vmsvga3dCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext, PVMSVGA3DSURFACE pSurface);
691	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
692	RT_C_DECLS_END
693
694
695	/**
696	* Checks if the given OpenGL extension is supported.
697	*
698	* @returns true if supported, false if not.
699	* @param pState The VMSVGA3d state.
700	* @param fActualGLVersion The actual OpenGL version we're working against.
701	* @param fMinGLVersion The OpenGL version that introduced this feature
702	* into the core.
703	* @param pszWantedExtension The name of the OpenGL extension we want padded
704	* with one space at each end.
705	* @remarks Init time only.
706	*/
707	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float fMinGLVersion, const char *pszWantedExtension)
708	{
709	/* check padding. */
710	Assert(pszWantedExtension[0] == ' ');
711	Assert(pszWantedExtension[1] != ' ');
712	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
713
714	/* Look it up. */
715	bool fRet = false;
716	if (strstr(pState->pszExtensions, pszWantedExtension))
717	fRet = true;
718
719	/* Temporarily. Later start if (fMinGLVersion != 0.0 && fActualGLVersion >= fMinGLVersion) return true; */
720	AssertMsg( fMinGLVersion == 0.0
721	\|\| fRet == (pState->fGLVersion >= fMinGLVersion)
722	#ifdef RT_OS_DARWIN
723	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1
724	#endif
725	, ("%s actual:%d min:%d fRet=%d\n",
726	pszWantedExtension, (int)(pState->fGLVersion * 10), (int)(fMinGLVersion * 10), fRet));
727	return fRet;
728	}
729
730
731	/**
732	* Outputs GL_EXTENSIONS list to the release log.
733	*/
734	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
735	{
736	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
737	bool fBuffered = RTLogRelSetBuffering(true);
738
739	/*
740	* Determin the column widths first.
741	*/
742	size_t acchWidths[4] = { 1, 1, 1, 1 };
743	uint32_t i;
744	const char *psz = pszExtensions;
745	for (i = 0; ; i++)
746	{
747	while (*psz == ' ')
748	psz++;
749	if (!*psz)
750	break;
751
752	const char *pszEnd = strchr(psz, ' ');
753	AssertBreak(pszEnd);
754	size_t cch = pszEnd - psz;
755
756	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
757	if (acchWidths[iColumn] < cch)
758	acchWidths[iColumn] = cch;
759
760	psz = pszEnd;
761	}
762
763	/*
764	* Output it.
765	*/
766	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
767	psz = pszExtensions;
768	for (i = 0; ; i++)
769	{
770	while (*psz == ' ')
771	psz++;
772	if (!*psz)
773	break;
774
775	const char *pszEnd = strchr(psz, ' ');
776	AssertBreak(pszEnd);
777	size_t cch = pszEnd - psz;
778
779	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
780	if (iColumn == 0)
781	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
782	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
783	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
784	else
785	LogRel((" %.*s", cch, psz));
786
787	psz = pszEnd;
788	}
789
790	RTLogRelSetBuffering(fBuffered);
791	LogRel(("\n"));
792	}
793
794	/**
795	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
796	* @a ppszExtensions.
797	*
798	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
799	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
800	* @param fGLProfileVersion The OpenGL profile version.
801	*/
802	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
803	{
804	int rc;
805	*ppszExtensions = NULL;
806
807	/*
808	* Try the old glGetString interface first.
809	*/
810	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
811	if (pszExtensions)
812	{
813	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
814	AssertLogRelRCReturn(rc, rc);
815	}
816	else
817	{
818	/*
819	* The new interface where each extension string is retrieved separately.
820	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
821	* the above GL_EXTENSIONS error lingers on darwin. sucks.
822	*/
823	#ifndef GL_NUM_EXTENSIONS
824	# define GL_NUM_EXTENSIONS 0x821D
825	#endif
826	GLint cExtensions = 1024;
827	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
828	Assert(cExtensions != 1024);
829
830	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
831	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
832
833	rc = RTStrAAppend(ppszExtensions, " ");
834	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
835	{
836	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
837	if (pszExt)
838	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
839	}
840	AssertRCReturn(rc, rc);
841	}
842
843	#if 1
844	/*
845	* Add extensions promoted into the core OpenGL profile.
846	*/
847	static const struct
848	{
849	float fGLVersion;
850	const char *pszzExtensions;
851	} s_aPromotedExtensions[] =
852	{
853	{
854	1.1,
855	" GL_EXT_vertex_array \0"
856	" GL_EXT_polygon_offset \0"
857	" GL_EXT_blend_logic_op \0"
858	" GL_EXT_texture \0"
859	" GL_EXT_copy_texture \0"
860	" GL_EXT_subtexture \0"
861	" GL_EXT_texture_object \0"
862	" GL_ARB_framebuffer_object \0"
863	" GL_ARB_map_buffer_range \0"
864	" GL_ARB_vertex_array_object \0"
865	"\0"
866	},
867	{
868	1.2,
869	" EXT_texture3D \0"
870	" EXT_bgra \0"
871	" EXT_packed_pixels \0"
872	" EXT_rescale_normal \0"
873	" EXT_separate_specular_color \0"
874	" SGIS_texture_edge_clamp \0"
875	" SGIS_texture_lod \0"
876	" EXT_draw_range_elements \0"
877	"\0"
878	},
879	{
880	1.3,
881	" GL_ARB_texture_compression \0"
882	" GL_ARB_texture_cube_map \0"
883	" GL_ARB_multisample \0"
884	" GL_ARB_multitexture \0"
885	" GL_ARB_texture_env_add \0"
886	" GL_ARB_texture_env_combine \0"
887	" GL_ARB_texture_env_dot3 \0"
888	" GL_ARB_texture_border_clamp \0"
889	" GL_ARB_transpose_matrix \0"
890	"\0"
891	},
892	{
893	1.5,
894	" GL_SGIS_generate_mipmap \0"
895	/" GL_NV_blend_equare \0"/
896	" GL_ARB_depth_texture \0"
897	" GL_ARB_shadow \0"
898	" GL_EXT_fog_coord \0"
899	" GL_EXT_multi_draw_arrays \0"
900	" GL_ARB_point_parameters \0"
901	" GL_EXT_secondary_color \0"
902	" GL_EXT_blend_func_separate \0"
903	" GL_EXT_stencil_wrap \0"
904	" GL_ARB_texture_env_crossbar \0"
905	" GL_EXT_texture_lod_bias \0"
906	" GL_ARB_texture_mirrored_repeat \0"
907	" GL_ARB_window_pos \0"
908	"\0"
909	},
910	{
911	1.6,
912	" GL_ARB_vertex_buffer_object \0"
913	" GL_ARB_occlusion_query \0"
914	" GL_EXT_shadow_funcs \0"
915	},
916	{
917	2.0,
918	" GL_ARB_shader_objects \0" /??/
919	" GL_ARB_vertex_shader \0" /??/
920	" GL_ARB_fragment_shader \0" /??/
921	" GL_ARB_shading_language_100 \0" /??/
922	" GL_ARB_draw_buffers \0"
923	" GL_ARB_texture_non_power_of_two \0"
924	" GL_ARB_point_sprite \0"
925	" GL_ATI_separate_stencil \0"
926	" GL_EXT_stencil_two_side \0"
927	"\0"
928	},
929	{
930	2.1,
931	" GL_ARB_pixel_buffer_object \0"
932	" GL_EXT_texture_sRGB \0"
933	"\0"
934	},
935	{
936	3.0,
937	" GL_ARB_framebuffer_object \0"
938	" GL_ARB_map_buffer_range \0"
939	" GL_ARB_vertex_array_object \0"
940	"\0"
941	},
942	{
943	3.1,
944	" GL_ARB_copy_buffer \0"
945	" GL_ARB_uniform_buffer_object \0"
946	"\0"
947	},
948	{
949	3.2,
950	" GL_ARB_vertex_array_bgra \0"
951	" GL_ARB_draw_elements_base_vertex \0"
952	" GL_ARB_fragment_coord_conventions \0"
953	" GL_ARB_provoking_vertex \0"
954	" GL_ARB_seamless_cube_map \0"
955	" GL_ARB_texture_multisample \0"
956	" GL_ARB_depth_clamp \0"
957	" GL_ARB_sync \0"
958	" GL_ARB_geometry_shader4 \0" /??/
959	"\0"
960	},
961	{
962	3.3,
963	" GL_ARB_blend_func_extended \0"
964	" GL_ARB_sampler_objects \0"
965	" GL_ARB_explicit_attrib_location \0"
966	" GL_ARB_occlusion_query2 \0"
967	" GL_ARB_shader_bit_encoding \0"
968	" GL_ARB_texture_rgb10_a2ui \0"
969	" GL_ARB_texture_swizzle \0"
970	" GL_ARB_timer_query \0"
971	" GL_ARB_vertex_type_2_10_10_10_rev \0"
972	"\0"
973	},
974	{
975	4.0,
976	" GL_ARB_texture_query_lod \0"
977	" GL_ARB_draw_indirect \0"
978	" GL_ARB_gpu_shader5 \0"
979	" GL_ARB_gpu_shader_fp64 \0"
980	" GL_ARB_shader_subroutine \0"
981	" GL_ARB_tessellation_shader \0"
982	" GL_ARB_texture_buffer_object_rgb32 \0"
983	" GL_ARB_texture_cube_map_array \0"
984	" GL_ARB_texture_gather \0"
985	" GL_ARB_transform_feedback2 \0"
986	" GL_ARB_transform_feedback3 \0"
987	"\0"
988	},
989	{
990	4.1,
991	" GL_ARB_ES2_compatibility \0"
992	" GL_ARB_get_program_binary \0"
993	" GL_ARB_separate_shader_objects \0"
994	" GL_ARB_shader_precision \0"
995	" GL_ARB_vertex_attrib_64bit \0"
996	" GL_ARB_viewport_array \0"
997	"\0"
998	}
999	};
1000
1001	uint32_t cPromoted = 0;
1002	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
1003	{
1004	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
1005	while (*pszExt)
1006	{
1007	size_t cchExt = strlen(pszExt);
1008	Assert(cchExt > 3);
1009	Assert(pszExt[0] == ' ');
1010	Assert(pszExt[1] != ' ');
1011	Assert(pszExt[cchExt - 2] != ' ');
1012	Assert(pszExt[cchExt - 1] == ' ');
1013
1014	if (strstr(*ppszExtensions, pszExt) == NULL)
1015	{
1016	if (cPromoted++ == 0)
1017	{
1018	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
1019	AssertRCReturn(rc, rc);
1020	}
1021
1022	rc = RTStrAAppend(ppszExtensions, pszExt);
1023	AssertRCReturn(rc, rc);
1024	}
1025
1026	pszExt = strchr(pszExt, '\0') + 1;
1027	}
1028	}
1029	#endif
1030
1031	return VINF_SUCCESS;
1032	}
1033
1034	/**
1035	* @interface_method_impl{VBOXVMSVGASHADERIF, pfnSwitchInitProfile}
1036	*/
1037	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
1038	{
1039	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1040	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
1041	VMSVGA3D_SET_CURRENT_CONTEXT(pState, &pState->paContext[fOtherProfile ? 2 : 1]);
1042	#else
1043	NOREF(pThis);
1044	NOREF(fOtherProfile);
1045	#endif
1046	}
1047
1048
1049	/**
1050	* @interface_method_impl{VBOXVMSVGASHADERIF, pfnGetNextExtension}
1051	*/
1052	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
1053	char *pszBuf, size_t cbBuf, bool fOtherProfile)
1054	{
1055	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
1056	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
1057	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
1058	while (*pszCur == ' ')
1059	pszCur++;
1060	if (!*pszCur)
1061	return false;
1062
1063	const char *pszEnd = strchr(pszCur, ' ');
1064	AssertReturn(pszEnd, false);
1065	size_t cch = pszEnd - pszCur;
1066	if (cch < cbBuf)
1067	{
1068	memcpy(pszBuf, pszCur, cch);
1069	pszBuf[cch] = '\0';
1070	}
1071	else if (cbBuf > 0)
1072	{
1073	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
1074	pszBuf[cbBuf - 1] = '\0';
1075	}
1076
1077	ppvEnumCtx = (void )pszEnd;
1078	return true;
1079	}
1080
1081
1082	/**
1083	* Initializes the VMSVGA3D state during VGA device construction.
1084	*
1085	* Failure are generally not fatal, 3D support will just be disabled.
1086	*
1087	* @returns VBox status code.
1088	* @param pThis The VGA device state where svga.p3dState will be modified.
1089	*/
1090	int vmsvga3dInit(PVGASTATE pThis)
1091	{
1092	AssertCompile(GL_TRUE == 1);
1093	AssertCompile(GL_FALSE == 0);
1094
1095	/*
1096	* Load and resolve imports from the external shared libraries.
1097	*/
1098	RTERRINFOSTATIC ErrInfo;
1099	int rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
1100	if (RT_FAILURE(rc))
1101	{
1102	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
1103	return rc;
1104	}
1105	#ifdef RT_OS_DARWIN
1106	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
1107	if (RT_FAILURE(rc))
1108	{
1109	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
1110	return rc;
1111	}
1112	#endif
1113
1114	/*
1115	* Allocate the state.
1116	*/
1117	pThis->svga.p3dState = RTMemAllocZ(sizeof(VMSVGA3DSTATE));
1118	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1119
1120	#ifdef RT_OS_WINDOWS
1121	/* Create event semaphore and async IO thread. */
1122	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
1123	rc = RTSemEventCreate(&pState->WndRequestSem);
1124	if (RT_SUCCESS(rc))
1125	{
1126	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
1127	"VMSVGA3DWND");
1128	if (RT_SUCCESS(rc))
1129	return VINF_SUCCESS;
1130
1131	/* bail out. */
1132	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
1133	RTSemEventDestroy(&pState->WndRequestSem);
1134	}
1135	else
1136	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
1137	RTMemFree(pThis->svga.p3dState);
1138	pThis->svga.p3dState = NULL;
1139	return rc;
1140	#else
1141	return VINF_SUCCESS;
1142	#endif
1143	}
1144
1145	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
1146	int vmsvga3dPowerOn(PVGASTATE pThis)
1147	{
1148	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
1149	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1150	PVMSVGA3DCONTEXT pContext;
1151	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1152	PVMSVGA3DCONTEXT pOtherCtx;
1153	#endif
1154	int rc;
1155
1156	if (pState->fGLVersion != 0.0)
1157	return VINF_SUCCESS; /* already initialized (load state) */
1158
1159	/*
1160	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
1161	*/
1162	rc = vmsvga3dContextDefine(pThis, 1, false /fOtherProfile/);
1163	AssertRCReturn(rc, rc);
1164
1165	pContext = &pState->paContext[1];
1166	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1167
1168	LogRel(("VMSVGA3d: OpenGL version: %s\n"
1169	"VMSVGA3d: OpenGL Vendor: %s\n"
1170	"VMSVGA3d: OpenGL Renderer: %s\n"
1171	"VMSVGA3d: OpenGL shader language version: %s\n",
1172	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
1173	glGetString(GL_SHADING_LANGUAGE_VERSION)));
1174
1175	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
1176	AssertRCReturn(rc, rc);
1177	vmsvga3dLogRelExtensions("", pState->pszExtensions);
1178
1179	pState->fGLVersion = atof((const char *)glGetString(GL_VERSION));
1180
1181
1182	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1183	/*
1184	* Get the extension list for the alternative profile so we can better
1185	* figure out the shader model and stuff.
1186	*/
1187	rc = vmsvga3dContextDefine(pThis, 2, true /fOtherProfile/);
1188	AssertLogRelRCReturn(rc, rc);
1189	pContext = &pState->paContext[1]; /* Array may have been reallocated. */
1190
1191	pOtherCtx = &pState->paContext[2];
1192	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
1193
1194	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
1195	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
1196	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
1197	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
1198	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
1199	glGetString(GL_SHADING_LANGUAGE_VERSION)));
1200
1201	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
1202	AssertRCReturn(rc, rc);
1203	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
1204
1205	pState->fOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
1206
1207	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1208	#else
1209	pState->pszOtherExtensions = (char *)"";
1210	pState->fOtherGLVersion = pState->fGLVersion;
1211	#endif
1212
1213
1214	if (vmsvga3dCheckGLExtension(pState, 3.0, " GL_ARB_framebuffer_object "))
1215	{
1216	pState->ext.glIsRenderbuffer = (PFNGLISRENDERBUFFERPROC)OGLGETPROCADDRESS("glIsRenderbuffer");
1217	pState->ext.glBindRenderbuffer = (PFNGLBINDRENDERBUFFERPROC)OGLGETPROCADDRESS("glBindRenderbuffer");
1218	pState->ext.glDeleteRenderbuffers = (PFNGLDELETERENDERBUFFERSPROC)OGLGETPROCADDRESS("glDeleteRenderbuffers");
1219	pState->ext.glGenRenderbuffers = (PFNGLGENRENDERBUFFERSPROC)OGLGETPROCADDRESS("glGenRenderbuffers");
1220	pState->ext.glRenderbufferStorage = (PFNGLRENDERBUFFERSTORAGEPROC)OGLGETPROCADDRESS("glRenderbufferStorage");
1221	pState->ext.glGetRenderbufferParameteriv = (PFNGLGETRENDERBUFFERPARAMETERIVPROC)OGLGETPROCADDRESS("glGetRenderbufferParameteriv");
1222	pState->ext.glIsFramebuffer = (PFNGLISFRAMEBUFFERPROC)OGLGETPROCADDRESS("glIsFramebuffer");
1223	pState->ext.glBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBindFramebuffer");
1224	pState->ext.glDeleteFramebuffers = (PFNGLDELETEFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteFramebuffers");
1225	pState->ext.glGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glGenFramebuffers");
1226	pState->ext.glCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC)OGLGETPROCADDRESS("glCheckFramebufferStatus");
1227	pState->ext.glFramebufferTexture1D = (PFNGLFRAMEBUFFERTEXTURE1DPROC)OGLGETPROCADDRESS("glFramebufferTexture1D");
1228	pState->ext.glFramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC)OGLGETPROCADDRESS("glFramebufferTexture2D");
1229	pState->ext.glFramebufferTexture3D = (PFNGLFRAMEBUFFERTEXTURE3DPROC)OGLGETPROCADDRESS("glFramebufferTexture3D");
1230	pState->ext.glFramebufferRenderbuffer = (PFNGLFRAMEBUFFERRENDERBUFFERPROC)OGLGETPROCADDRESS("glFramebufferRenderbuffer");
1231	pState->ext.glGetFramebufferAttachmentParameteriv = (PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC)OGLGETPROCADDRESS("glGetFramebufferAttachmentParameteriv");
1232	pState->ext.glGenerateMipmap = (PFNGLGENERATEMIPMAPPROC)OGLGETPROCADDRESS("glGenerateMipmap");
1233	pState->ext.glBlitFramebuffer = (PFNGLBLITFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBlitFramebuffer");
1234	pState->ext.glRenderbufferStorageMultisample = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC)OGLGETPROCADDRESS("glRenderbufferStorageMultisample");
1235	pState->ext.glFramebufferTextureLayer = (PFNGLFRAMEBUFFERTEXTURELAYERPROC)OGLGETPROCADDRESS("glFramebufferTextureLayer");
1236	}
1237	pState->ext.glPointParameterf = (PFNGLPOINTPARAMETERFPROC)OGLGETPROCADDRESS("glPointParameterf");
1238	AssertMsgReturn(pState->ext.glPointParameterf, ("glPointParameterf missing"), VERR_NOT_IMPLEMENTED);
1239	pState->ext.glBlendEquation = (PFNGLBLENDEQUATIONPROC)OGLGETPROCADDRESS("glBlendEquation");
1240	AssertMsgReturn(pState->ext.glBlendEquation, ("glBlendEquation missing"), VERR_NOT_IMPLEMENTED);
1241	pState->ext.glBlendEquationSeparate = (PFNGLBLENDEQUATIONSEPARATEPROC)OGLGETPROCADDRESS("glBlendEquationSeparate");
1242	AssertMsgReturn(pState->ext.glBlendEquationSeparate, ("glBlendEquationSeparate missing"), VERR_NOT_IMPLEMENTED);
1243	pState->ext.glBlendFuncSeparate = (PFNGLBLENDFUNCSEPARATEPROC)OGLGETPROCADDRESS("glBlendFuncSeparate");
1244	AssertMsgReturn(pState->ext.glBlendFuncSeparate, ("glBlendFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
1245	pState->ext.glStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC)OGLGETPROCADDRESS("glStencilOpSeparate");
1246	AssertMsgReturn(pState->ext.glStencilOpSeparate, ("glStencilOpSeparate missing"), VERR_NOT_IMPLEMENTED);
1247	pState->ext.glStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC)OGLGETPROCADDRESS("glStencilFuncSeparate");
1248	AssertMsgReturn(pState->ext.glStencilFuncSeparate, ("glStencilFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
1249	pState->ext.glBlendColor = (PFNGLBLENDCOLORPROC)OGLGETPROCADDRESS("glBlendColor");
1250	AssertMsgReturn(pState->ext.glBlendColor, ("glBlendColor missing"), VERR_NOT_IMPLEMENTED);
1251	pState->ext.glBindBuffer = (PFNGLBINDBUFFERPROC)OGLGETPROCADDRESS("glBindBuffer");
1252	AssertMsgReturn(pState->ext.glBindBuffer, ("glBindBuffer missing"), VERR_NOT_IMPLEMENTED);
1253	pState->ext.glDeleteBuffers = (PFNGLDELETEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteBuffers");
1254	AssertMsgReturn(pState->ext.glDeleteBuffers, ("glDeleteBuffers missing"), VERR_NOT_IMPLEMENTED);
1255	pState->ext.glGenBuffers = (PFNGLGENBUFFERSPROC)OGLGETPROCADDRESS("glGenBuffers");
1256	AssertMsgReturn(pState->ext.glGenBuffers, ("glGenBuffers missing"), VERR_NOT_IMPLEMENTED);
1257	pState->ext.glBufferData = (PFNGLBUFFERDATAPROC)OGLGETPROCADDRESS("glBufferData");
1258	AssertMsgReturn(pState->ext.glBufferData, ("glBufferData missing"), VERR_NOT_IMPLEMENTED);
1259	pState->ext.glMapBuffer = (PFNGLMAPBUFFERPROC)OGLGETPROCADDRESS("glMapBuffer");
1260	AssertMsgReturn(pState->ext.glMapBuffer, ("glMapBuffer missing"), VERR_NOT_IMPLEMENTED);
1261	pState->ext.glUnmapBuffer = (PFNGLUNMAPBUFFERPROC)OGLGETPROCADDRESS("glUnmapBuffer");
1262	AssertMsgReturn(pState->ext.glUnmapBuffer, ("glUnmapBuffer missing"), VERR_NOT_IMPLEMENTED);
1263	pState->ext.glEnableVertexAttribArray = (PFNGLENABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glEnableVertexAttribArray");
1264	AssertMsgReturn(pState->ext.glEnableVertexAttribArray, ("glEnableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
1265	pState->ext.glDisableVertexAttribArray = (PFNGLDISABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glDisableVertexAttribArray");
1266	AssertMsgReturn(pState->ext.glDisableVertexAttribArray, ("glDisableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
1267	pState->ext.glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC)OGLGETPROCADDRESS("glVertexAttribPointer");
1268	AssertMsgReturn(pState->ext.glVertexAttribPointer, ("glVertexAttribPointer missing"), VERR_NOT_IMPLEMENTED);
1269	pState->ext.glFogCoordPointer = (PFNGLFOGCOORDPOINTERPROC)OGLGETPROCADDRESS("glFogCoordPointer");
1270	AssertMsgReturn(pState->ext.glFogCoordPointer, ("glFogCoordPointer missing"), VERR_NOT_IMPLEMENTED);
1271	pState->ext.glActiveTexture = (PFNGLACTIVETEXTUREPROC)OGLGETPROCADDRESS("glActiveTexture");
1272	AssertMsgReturn(pState->ext.glActiveTexture, ("glActiveTexture missing"), VERR_NOT_IMPLEMENTED);
1273	pState->ext.glClientActiveTexture = (PFNGLCLIENTACTIVETEXTUREPROC)OGLGETPROCADDRESS("glClientActiveTexture");
1274	AssertMsgReturn(pState->ext.glClientActiveTexture, ("glClientActiveTexture missing"), VERR_NOT_IMPLEMENTED);
1275	pState->ext.glGetProgramivARB = (PFNGLGETPROGRAMIVARBPROC)OGLGETPROCADDRESS("glGetProgramivARB");
1276	AssertMsgReturn(pState->ext.glGetProgramivARB, ("glGetProgramivARB missing"), VERR_NOT_IMPLEMENTED);
1277
1278	/* OpenGL 3.2 core */
1279	if (vmsvga3dCheckGLExtension(pState, 3.2, " GL_ARB_draw_elements_base_vertex "))
1280	{
1281	pState->ext.glDrawElementsBaseVertex = (PFNGLDRAWELEMENTSBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsBaseVertex");
1282	pState->ext.glDrawElementsInstancedBaseVertex = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsInstancedBaseVertex");
1283	}
1284	else
1285	LogRel(("VMSVGA3d: missing extension GL_ARB_draw_elements_base_vertex\n"));
1286
1287	/* OpenGL 3.2 core */
1288	if (vmsvga3dCheckGLExtension(pState, 3.2, " GL_ARB_provoking_vertex "))
1289	{
1290	pState->ext.glProvokingVertex = (PFNGLPROVOKINGVERTEXPROC)OGLGETPROCADDRESS("glProvokingVertex");
1291	}
1292	else
1293	LogRel(("VMSVGA3d: missing extension GL_ARB_provoking_vertex\n"));
1294
1295	/* Extension support */
1296	#if defined(RT_OS_DARWIN)
1297	/** @todo OpenGL version history suggest this, verify... */
1298	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 2.0, " GL_EXT_stencil_two_side ");
1299	#else
1300	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 0.0, " GL_EXT_stencil_two_side ");
1301	#endif
1302
1303	/*
1304	* Initialize the capabilities with sensible defaults.
1305	*/
1306	pState->caps.maxActiveLights = 1;
1307	pState->caps.maxTextureBufferSize = 65536;
1308	pState->caps.maxTextures = 1;
1309	pState->caps.maxClipDistances = 4;
1310	pState->caps.maxColorAttachments = 1;
1311	pState->caps.maxRectangleTextureSize = 2048;
1312	pState->caps.maxTextureAnisotropy = 2;
1313	pState->caps.maxVertexShaderInstructions = 1024;
1314	pState->caps.maxFragmentShaderInstructions = 1024;
1315	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
1316	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
1317	pState->caps.flPointSize[0] = 1;
1318	pState->caps.flPointSize[1] = 1;
1319
1320	/*
1321	* Query capabilities
1322	*/
1323	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
1324	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_BUFFER_SIZE, &pState->caps.maxTextureBufferSize));
1325	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
1326	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
1327	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
1328	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
1329	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
1330	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
1331
1332	if (pState->ext.glGetProgramivARB)
1333	{
1334	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
1335	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
1336	&pState->caps.maxFragmentShaderTemps));
1337	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
1338	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
1339	&pState->caps.maxFragmentShaderInstructions));
1340	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
1341	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
1342	&pState->caps.maxVertexShaderTemps));
1343	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
1344	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
1345	&pState->caps.maxVertexShaderInstructions));
1346	}
1347	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0, " GL_EXT_texture_compression_s3tc ");
1348
1349	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
1350	* ARB Assembly Language
1351	* These are done through testing the presence of extensions. You should test them in this order:
1352	* GL_NV_gpu_program4: SM 4.0 or better.
1353	* GL_NV_vertex_program3: SM 3.0 or better.
1354	* GL_ARB_fragment_program: SM 2.0 or better.
1355	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
1356	*
1357	*/
1358	/** @todo: distinguish between vertex and pixel shaders??? */
1359	if ( vmsvga3dCheckGLExtension(pState, 0.0, " GL_NV_gpu_program4 ")
1360	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
1361	{
1362	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
1363	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
1364	}
1365	else
1366	if ( vmsvga3dCheckGLExtension(pState, 0.0, " GL_NV_vertex_program3 ")
1367	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
1368	\|\| vmsvga3dCheckGLExtension(pState, 0.0, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
1369	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
1370	)
1371	{
1372	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
1373	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
1374	}
1375	else
1376	if ( vmsvga3dCheckGLExtension(pState, 0.0, " GL_ARB_fragment_program ")
1377	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
1378	{
1379	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
1380	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
1381	}
1382	else
1383	{
1384	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
1385	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
1386	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
1387	}
1388
1389	if (!vmsvga3dCheckGLExtension(pState, 3.2, " GL_ARB_vertex_array_bgra "))
1390	{
1391	/** @todo Intel drivers don't support this extension! */
1392	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
1393	}
1394	#if 0
1395	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
1396	SVGA3D_DEVCAP_QUERY_TYPES = 15,
1397	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
1398	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
1399	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
1400	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
1401	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
1402	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
1403	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
1404	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
1405	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
1406	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
1407	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
1408	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
1409	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
1410	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
1411	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
1412	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
1413	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
1414	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
1415	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
1416	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
1417	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
1418	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
1419	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
1420	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
1421	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
1422	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
1423	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
1424	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
1425	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
1426	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
1427	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
1428	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
1429	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
1430	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
1431	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
1432	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
1433	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
1434	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
1435	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
1436	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
1437	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
1438	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
1439	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
1440	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
1441	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
1442	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
1443	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
1444	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
1445	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
1446	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
1447	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
1448	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
1449	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
1450	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
1451	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
1452	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
1453	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
1454	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
1455	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
1456	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
1457	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
1458	#endif
1459
1460	LogRel(("VMSVGA3d: Capabilities:\n"));
1461	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d maxTextureBufferSize=%d\n",
1462	pState->caps.maxActiveLights, pState->caps.maxTextures, pState->caps.maxTextureBufferSize));
1463	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
1464	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
1465	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
1466	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
1467	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
1468	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
1469	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
1470	pState->caps.maxFragmentShaderTemps,
1471	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
1472	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
1473	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
1474	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
1475
1476
1477	/* Initialize the shader library. */
1478	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1479	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1480	rc = ShaderInitLib(&pState->ShaderIf);
1481	AssertRC(rc);
1482
1483	/* Cleanup */
1484	rc = vmsvga3dContextDestroy(pThis, 1);
1485	AssertRC(rc);
1486	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1487	rc = vmsvga3dContextDestroy(pThis, 2);
1488	AssertRC(rc);
1489	#endif
1490
1491	if ( pState->fGLVersion < 3.0
1492	&& pState->fOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1493	{
1494	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1495	return VERR_NOT_IMPLEMENTED;
1496	}
1497	if ( !pState->ext.glIsRenderbuffer
1498	\|\| !pState->ext.glBindRenderbuffer
1499	\|\| !pState->ext.glDeleteRenderbuffers
1500	\|\| !pState->ext.glGenRenderbuffers
1501	\|\| !pState->ext.glRenderbufferStorage
1502	\|\| !pState->ext.glGetRenderbufferParameteriv
1503	\|\| !pState->ext.glIsFramebuffer
1504	\|\| !pState->ext.glBindFramebuffer
1505	\|\| !pState->ext.glDeleteFramebuffers
1506	\|\| !pState->ext.glGenFramebuffers
1507	\|\| !pState->ext.glCheckFramebufferStatus
1508	\|\| !pState->ext.glFramebufferTexture1D
1509	\|\| !pState->ext.glFramebufferTexture2D
1510	\|\| !pState->ext.glFramebufferTexture3D
1511	\|\| !pState->ext.glFramebufferRenderbuffer
1512	\|\| !pState->ext.glGetFramebufferAttachmentParameteriv
1513	\|\| !pState->ext.glGenerateMipmap
1514	\|\| !pState->ext.glBlitFramebuffer
1515	\|\| !pState->ext.glRenderbufferStorageMultisample
1516	\|\| !pState->ext.glFramebufferTextureLayer)
1517	{
1518	LogRel(("VMSVGA3d: missing required OpenGL extension; aborting\n"));
1519	return VERR_NOT_IMPLEMENTED;
1520	}
1521
1522	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
1523	pState->idTestContext = SVGA_ID_INVALID;
1524	#endif
1525	return VINF_SUCCESS;
1526	}
1527
1528	int vmsvga3dReset(PVGASTATE pThis)
1529	{
1530	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
1531	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1532
1533	/* Destroy all leftover surfaces. */
1534	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1535	{
1536	if (pState->paSurface[i].id != SVGA3D_INVALID_ID)
1537	vmsvga3dSurfaceDestroy(pThis, pState->paSurface[i].id);
1538	}
1539
1540	/* Destroy all leftover contexts. */
1541	for (uint32_t i = 0; i < pState->cContexts; i++)
1542	{
1543	if (pState->paContext[i].id != SVGA3D_INVALID_ID)
1544	vmsvga3dContextDestroy(pThis, pState->paContext[i].id);
1545	}
1546	return VINF_SUCCESS;
1547	}
1548
1549	int vmsvga3dTerminate(PVGASTATE pThis)
1550	{
1551	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
1552	AssertReturn(pState, VERR_WRONG_ORDER);
1553	int rc;
1554
1555	rc = vmsvga3dReset(pThis);
1556	AssertRCReturn(rc, rc);
1557
1558	/* Terminate the shader library. */
1559	rc = ShaderDestroyLib();
1560	AssertRC(rc);
1561
1562	#ifdef RT_OS_WINDOWS
1563	/* Terminate the window creation thread. */
1564	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1565	AssertRCReturn(rc, rc);
1566
1567	RTSemEventDestroy(pState->WndRequestSem);
1568	#elif defined(RT_OS_DARWIN)
1569
1570	#elif defined(RT_OS_LINUX)
1571	/* signal to the thread that it is supposed to exit */
1572	pState->bTerminate = true;
1573	/* wait for it to terminate */
1574	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1575	AssertRC(rc);
1576	XCloseDisplay(pState->display);
1577	#endif
1578
1579	RTStrFree(pState->pszExtensions);
1580	pState->pszExtensions = NULL;
1581	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1582	RTStrFree(pState->pszOtherExtensions);
1583	#endif
1584	pState->pszOtherExtensions = NULL;
1585
1586	return VINF_SUCCESS;
1587	}
1588
1589	/* Shared functions that depend on private structure definitions. */
1590	#define VMSVGA3D_OPENGL
1591	#include "DevVGA-SVGA3d-shared.h"
1592
1593	static uint32_t vmsvga3dGetSurfaceFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1594	{
1595	uint32_t result = 0;
1596
1597	/* @todo missing:
1598	*
1599	* SVGA3DFORMAT_OP_PIXELSIZE
1600	*/
1601
1602	switch (idx3dCaps)
1603	{
1604	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1605	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1606	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1607	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1608	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1609	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1610	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1611	break;
1612
1613	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1614	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1615	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1616	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1617	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1618	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1619	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1620	break;
1621	}
1622
1623	/* @todo check hardware caps! */
1624	switch (idx3dCaps)
1625	{
1626	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1627	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1628	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1629	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1630	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1631	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1632	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1633	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1634	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1635	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1636	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1637	result \|= SVGA3DFORMAT_OP_TEXTURE
1638	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1639	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1640	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1641	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1642	\| SVGA3DFORMAT_OP_CUBETEXTURE
1643	\| SVGA3DFORMAT_OP_SRGBREAD
1644	\| SVGA3DFORMAT_OP_SRGBWRITE;
1645	break;
1646
1647	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1648	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1649	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1650	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1651	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1652	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1653	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1654	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1655	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1656	break;
1657
1658	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1659	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1660	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1661	result \|= SVGA3DFORMAT_OP_TEXTURE
1662	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1663	\| SVGA3DFORMAT_OP_CUBETEXTURE
1664	\| SVGA3DFORMAT_OP_SRGBREAD;
1665	break;
1666
1667	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1668	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1669	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1670	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1671	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1672	break;
1673
1674	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1675	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1676	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1677	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1678	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1679	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1680	break;
1681
1682	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1683	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1684	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1685
1686	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1687	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1688	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1689	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1690	break;
1691	}
1692	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1693
1694	return result;
1695	}
1696
1697	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1698	{
1699	uint32_t result = 0;
1700
1701	/* @todo test this somehow */
1702	result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1703
1704	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1705	return result;
1706	}
1707
1708
1709	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1710	{
1711	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
1712	AssertReturn(pState, VERR_NO_MEMORY);
1713	int rc = VINF_SUCCESS;
1714
1715	*pu32Val = 0;
1716
1717	switch (idx3dCaps)
1718	{
1719	case SVGA3D_DEVCAP_3D:
1720	pu32Val = 1; / boolean? */
1721	break;
1722
1723	case SVGA3D_DEVCAP_MAX_LIGHTS:
1724	*pu32Val = pState->caps.maxActiveLights;
1725	break;
1726
1727	case SVGA3D_DEVCAP_MAX_TEXTURES:
1728	*pu32Val = pState->caps.maxTextures;
1729	break;
1730
1731	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1732	*pu32Val = pState->caps.maxClipDistances;
1733	break;
1734
1735	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1736	*pu32Val = pState->caps.vertexShaderVersion;
1737	break;
1738
1739	case SVGA3D_DEVCAP_VERTEX_SHADER:
1740	/* boolean? */
1741	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1742	break;
1743
1744	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1745	*pu32Val = pState->caps.fragmentShaderVersion;
1746	break;
1747
1748	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1749	/* boolean? */
1750	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1751	break;
1752
1753	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1754	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1755	/* Must be obsolete by now; surface format caps specify the same thing. */
1756	rc = VERR_INVALID_PARAMETER;
1757	break;
1758
1759	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1760	break;
1761
1762	/*
1763	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1764	* return TRUE. Even on physical hardware that does not support
1765	* these formats natively, the SVGA3D device will provide an emulation
1766	* which should be invisible to the guest OS.
1767	*/
1768	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1769	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1770	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1771	*pu32Val = 1;
1772	break;
1773
1774	case SVGA3D_DEVCAP_QUERY_TYPES:
1775	break;
1776
1777	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1778	break;
1779
1780	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1781	AssertCompile(sizeof(uint32_t) == sizeof(float));
1782	(float )pu32Val = pState->caps.flPointSize[1];
1783	break;
1784
1785	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1786	/* @todo ?? */
1787	rc = VERR_INVALID_PARAMETER;
1788	break;
1789
1790	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1791	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1792	*pu32Val = pState->caps.maxRectangleTextureSize;
1793	break;
1794
1795	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1796	//*pu32Val = pCaps->MaxVolumeExtent;
1797	break;
1798
1799	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1800	pu32Val = 32768; / hardcoded in Wine */
1801	break;
1802
1803	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1804	//*pu32Val = pCaps->MaxTextureAspectRatio;
1805	break;
1806
1807	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1808	*pu32Val = pState->caps.maxTextureAnisotropy;
1809	break;
1810
1811	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1812	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1813	pu32Val = 0xFFFFF; / hardcoded in Wine */
1814	break;
1815
1816	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1817	*pu32Val = pState->caps.maxVertexShaderInstructions;
1818	break;
1819
1820	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1821	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1822	break;
1823
1824	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1825	*pu32Val = pState->caps.maxVertexShaderTemps;
1826	break;
1827
1828	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1829	*pu32Val = pState->caps.maxFragmentShaderTemps;
1830	break;
1831
1832	case SVGA3D_DEVCAP_TEXTURE_OPS:
1833	break;
1834
1835	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1836	break;
1837
1838	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1839	break;
1840
1841	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1842	break;
1843
1844	case SVGA3D_DEVCAP_SUPERSAMPLE:
1845	break;
1846
1847	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1848	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1849	break;
1850
1851	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1852	break;
1853
1854	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /* @todo same thing? */
1855	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1856	*pu32Val = pState->caps.maxColorAttachments;
1857	break;
1858
1859	/*
1860	* This is the maximum number of SVGA context IDs that the guest
1861	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1862	*/
1863	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1864	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1865	break;
1866
1867	/*
1868	* This is the maximum number of SVGA surface IDs that the guest
1869	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1870	*/
1871	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1872	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1873	break;
1874
1875	/* Supported surface formats. */
1876	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1877	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1878	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1879	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1880	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1881	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1882	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1883	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1884	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1885	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1886	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1887	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1888	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1889	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1890	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1891	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1892	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1893	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1894	*pu32Val = vmsvga3dGetSurfaceFormatSupport(pState, idx3dCaps);
1895	break;
1896
1897	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1898	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1899	pu32Val = 0; / apparently not supported in OpenGL */
1900	break;
1901
1902	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1903	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1904	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1905	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1906	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1907	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1908	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1909	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1910	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1911	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1912	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1913	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1914	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1915	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1916	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1917	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1918	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1919	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1920	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1921	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1922	*pu32Val = vmsvga3dGetSurfaceFormatSupport(pState, idx3dCaps);
1923	break;
1924
1925	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1926	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1927	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1928	rc = VERR_INVALID_PARAMETER;
1929	*pu32Val = 0;
1930	break;
1931
1932	default:
1933	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1934	rc = VERR_INVALID_PARAMETER;
1935	break;
1936	}
1937
1938	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1939	return rc;
1940	}
1941
1942	/**
1943	* Convert SVGA format value to its OpenGL equivalent
1944	*/
1945	static void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1946	{
1947	switch (format)
1948	{
1949	case SVGA3D_X8R8G8B8:
1950	pSurface->internalFormatGL = GL_RGB8;
1951	pSurface->formatGL = GL_BGRA;
1952	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1953	break;
1954	case SVGA3D_A8R8G8B8:
1955	pSurface->internalFormatGL = GL_RGBA8;
1956	pSurface->formatGL = GL_BGRA;
1957	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1958	break;
1959	case SVGA3D_R5G6B5:
1960	pSurface->internalFormatGL = GL_RGB;
1961	pSurface->formatGL = GL_RGB;
1962	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1963	break;
1964	case SVGA3D_X1R5G5B5:
1965	pSurface->internalFormatGL = GL_RGB;
1966	pSurface->formatGL = GL_RGB;
1967	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1968	break;
1969	case SVGA3D_A1R5G5B5:
1970	pSurface->internalFormatGL = GL_RGBA;
1971	pSurface->formatGL = GL_RGB;
1972	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1973	break;
1974	case SVGA3D_A4R4G4B4:
1975	pSurface->internalFormatGL = GL_RGBA;
1976	pSurface->formatGL = GL_RGBA;
1977	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4;
1978	break;
1979
1980	case SVGA3D_Z_D32:
1981	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1982	pSurface->formatGL = GL_DEPTH_COMPONENT;
1983	pSurface->typeGL = GL_UNSIGNED_INT;
1984	break;
1985	case SVGA3D_Z_D16:
1986	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1987	pSurface->formatGL = GL_DEPTH_COMPONENT;
1988	pSurface->typeGL = GL_UNSIGNED_SHORT;
1989	break;
1990	case SVGA3D_Z_D24S8:
1991	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1992	pSurface->formatGL = GL_DEPTH_STENCIL;
1993	pSurface->typeGL = GL_UNSIGNED_INT;
1994	break;
1995	case SVGA3D_Z_D15S1:
1996	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /* @todo ??? */
1997	pSurface->formatGL = GL_DEPTH_STENCIL;
1998	pSurface->typeGL = GL_UNSIGNED_SHORT;
1999	break;
2000	case SVGA3D_Z_D24X8:
2001	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
2002	pSurface->formatGL = GL_DEPTH_COMPONENT;
2003	pSurface->typeGL = GL_UNSIGNED_INT;
2004	break;
2005
2006	/* Advanced D3D9 depth formats. */
2007	case SVGA3D_Z_DF16:
2008	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
2009	pSurface->formatGL = GL_DEPTH_COMPONENT;
2010	pSurface->typeGL = GL_FLOAT;
2011	break;
2012
2013	case SVGA3D_Z_DF24:
2014	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
2015	pSurface->formatGL = GL_DEPTH_COMPONENT;
2016	pSurface->typeGL = GL_FLOAT; /* ??? */
2017	break;
2018
2019	case SVGA3D_Z_D24S8_INT:
2020	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
2021	pSurface->formatGL = GL_DEPTH_STENCIL;
2022	pSurface->typeGL = GL_INT; /* ??? */
2023	break;
2024
2025	case SVGA3D_DXT1:
2026	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
2027	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
2028	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
2029	break;
2030
2031	case SVGA3D_DXT3:
2032	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
2033	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
2034	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
2035	break;
2036
2037	case SVGA3D_DXT5:
2038	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
2039	pSurface->formatGL = GL_RGBA_S3TC;
2040	pSurface->typeGL = GL_UNSIGNED_INT;
2041	break;
2042
2043	case SVGA3D_LUMINANCE8:
2044	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
2045	pSurface->formatGL = GL_LUMINANCE;
2046	pSurface->typeGL = GL_UNSIGNED_BYTE;
2047	break;
2048
2049	case SVGA3D_LUMINANCE16:
2050	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
2051	pSurface->formatGL = GL_LUMINANCE;
2052	pSurface->typeGL = GL_UNSIGNED_SHORT;
2053	break;
2054
2055	case SVGA3D_LUMINANCE4_ALPHA4:
2056	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
2057	pSurface->formatGL = GL_LUMINANCE_ALPHA;
2058	pSurface->typeGL = GL_UNSIGNED_BYTE;
2059	break;
2060
2061	case SVGA3D_LUMINANCE8_ALPHA8:
2062	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
2063	pSurface->formatGL = GL_LUMINANCE_ALPHA;
2064	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
2065	break;
2066
2067	case SVGA3D_ALPHA8:
2068	pSurface->internalFormatGL = GL_ALPHA8_EXT;
2069	pSurface->formatGL = GL_ALPHA;
2070	pSurface->typeGL = GL_UNSIGNED_BYTE;
2071	break;
2072
2073	#if 0
2074
2075	/* Bump-map formats */
2076	case SVGA3D_BUMPU8V8:
2077	return D3DFMT_V8U8;
2078	case SVGA3D_BUMPL6V5U5:
2079	return D3DFMT_L6V5U5;
2080	case SVGA3D_BUMPX8L8V8U8:
2081	return D3DFMT_X8L8V8U8;
2082	case SVGA3D_BUMPL8V8U8:
2083	/* No corresponding D3D9 equivalent. */
2084	AssertFailedReturn(D3DFMT_UNKNOWN);
2085	/* signed bump-map formats */
2086	case SVGA3D_V8U8:
2087	return D3DFMT_V8U8;
2088	case SVGA3D_Q8W8V8U8:
2089	return D3DFMT_Q8W8V8U8;
2090	case SVGA3D_CxV8U8:
2091	return D3DFMT_CxV8U8;
2092	/* mixed bump-map formats */
2093	case SVGA3D_X8L8V8U8:
2094	return D3DFMT_X8L8V8U8;
2095	case SVGA3D_A2W10V10U10:
2096	return D3DFMT_A2W10V10U10;
2097	#endif
2098
2099	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB */
2100	pSurface->internalFormatGL = GL_RGBA16F;
2101	pSurface->formatGL = GL_RGBA;
2102	pSurface->typeGL = GL_FLOAT;
2103	break;
2104
2105	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB */
2106	pSurface->internalFormatGL = GL_RGBA32F;
2107	pSurface->formatGL = GL_RGBA;
2108	pSurface->typeGL = GL_FLOAT; /* ?? */
2109	break;
2110
2111	case SVGA3D_A2R10G10B10:
2112	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? */
2113	pSurface->formatGL = GL_RGBA;
2114	pSurface->typeGL = GL_UNSIGNED_INT;
2115	break;
2116
2117
2118	/* Single- and dual-component floating point formats */
2119	case SVGA3D_R_S10E5:
2120	pSurface->internalFormatGL = GL_R16F;
2121	pSurface->formatGL = GL_RED;
2122	pSurface->typeGL = GL_FLOAT;
2123	break;
2124	case SVGA3D_R_S23E8:
2125	pSurface->internalFormatGL = GL_R32F;
2126	pSurface->formatGL = GL_RG;
2127	pSurface->typeGL = GL_FLOAT;
2128	break;
2129	case SVGA3D_RG_S10E5:
2130	pSurface->internalFormatGL = GL_RG16F;
2131	pSurface->formatGL = GL_RG;
2132	pSurface->typeGL = GL_FLOAT;
2133	break;
2134	case SVGA3D_RG_S23E8:
2135	pSurface->internalFormatGL = GL_RG32F;
2136	pSurface->formatGL = GL_RG;
2137	pSurface->typeGL = GL_FLOAT;
2138	break;
2139
2140	/*
2141	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
2142	* the most efficient format to use when creating new surfaces
2143	* expressly for index or vertex data.
2144	*/
2145	case SVGA3D_BUFFER:
2146	pSurface->internalFormatGL = -1;
2147	pSurface->formatGL = -1;
2148	pSurface->typeGL = -1;
2149	break;
2150
2151	#if 0
2152	return D3DFMT_UNKNOWN;
2153
2154	case SVGA3D_V16U16:
2155	return D3DFMT_V16U16;
2156	#endif
2157
2158	case SVGA3D_G16R16:
2159	pSurface->internalFormatGL = GL_RG16;
2160	pSurface->formatGL = GL_RG;
2161	pSurface->typeGL = GL_UNSIGNED_INT;
2162	break;
2163
2164	case SVGA3D_A16B16G16R16:
2165	pSurface->internalFormatGL = GL_RGBA16;
2166	pSurface->formatGL = GL_RG;
2167	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
2168	break;
2169
2170	#if 0
2171	/* Packed Video formats */
2172	case SVGA3D_UYVY:
2173	return D3DFMT_UYVY;
2174	case SVGA3D_YUY2:
2175	return D3DFMT_YUY2;
2176
2177	/* Planar video formats */
2178	case SVGA3D_NV12:
2179	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
2180
2181	/* Video format with alpha */
2182	case SVGA3D_AYUV:
2183	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
2184
2185	case SVGA3D_BC4_UNORM:
2186	case SVGA3D_BC5_UNORM:
2187	/* Unknown; only in DX10 & 11 */
2188	break;
2189	#endif
2190	default:
2191	AssertMsgFailed(("Unsupported format %d\n", format));
2192	break;
2193	}
2194	}
2195
2196
2197	#if 0
2198	/**
2199	* Convert SVGA multi sample count value to its D3D equivalent
2200	*/
2201	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
2202	{
2203	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
2204	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
2205
2206	if (multisampleCount > 16)
2207	return D3DMULTISAMPLE_NONE;
2208
2209	/* @todo exact same mapping as d3d? */
2210	return (D3DMULTISAMPLE_TYPE)multisampleCount;
2211	}
2212	#endif
2213
2214	int vmsvga3dSurfaceDefine(PVGASTATE pThis, uint32_t sid, uint32_t surfaceFlags, SVGA3dSurfaceFormat format, SVGA3dSurfaceFace face[SVGA3D_MAX_SURFACE_FACES],
2215	uint32_t multisampleCount, SVGA3dTextureFilter autogenFilter, uint32_t cMipLevels, SVGA3dSize *pMipLevelSize)
2216	{
2217	PVMSVGA3DSURFACE pSurface;
2218	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
2219	AssertReturn(pState, VERR_NO_MEMORY);
2220
2221	Log(("vmsvga3dSurfaceDefine: sid=%x surfaceFlags=%x format=%s (%x) multiSampleCount=%d autogenFilter=%d, cMipLevels=%d size=(%d,%d,%d)\n",
2222	sid, surfaceFlags, vmsvgaSurfaceType2String(format), format, multisampleCount, autogenFilter, cMipLevels, pMipLevelSize->width, pMipLevelSize->height, pMipLevelSize->depth));
2223
2224	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2225	AssertReturn(cMipLevels >= 1, VERR_INVALID_PARAMETER);
2226	/* Assuming all faces have the same nr of mipmaps. */
2227	AssertReturn(!(surfaceFlags & SVGA3D_SURFACE_CUBEMAP) \|\| cMipLevels == face[0].numMipLevels * 6, VERR_INVALID_PARAMETER);
2228	AssertReturn((surfaceFlags & SVGA3D_SURFACE_CUBEMAP) \|\| cMipLevels == face[0].numMipLevels, VERR_INVALID_PARAMETER);
2229
2230	if (sid >= pState->cSurfaces)
2231	{
2232	pState->paSurface = (PVMSVGA3DSURFACE )RTMemRealloc(pState->paSurface, sizeof(VMSVGA3DSURFACE) * (sid + 1));
2233	AssertReturn(pState->paSurface, VERR_NO_MEMORY);
2234	memset(&pState->paSurface[pState->cSurfaces], 0, sizeof(VMSVGA3DSURFACE) * (sid + 1 - pState->cSurfaces));
2235	for (uint32_t i = pState->cSurfaces; i < sid + 1; i++)
2236	pState->paSurface[i].id = SVGA3D_INVALID_ID;
2237
2238	pState->cSurfaces = sid + 1;
2239	}
2240	/* If one already exists with this id, then destroy it now. */
2241	if (pState->paSurface[sid].id != SVGA3D_INVALID_ID)
2242	vmsvga3dSurfaceDestroy(pThis, sid);
2243
2244	pSurface = &pState->paSurface[sid];
2245	memset(pSurface, 0, sizeof(*pSurface));
2246	pSurface->id = sid;
2247	pSurface->idAssociatedContext = SVGA3D_INVALID_ID;
2248	vmsvga3dSurfaceFormat2OGL(pSurface, format);
2249
2250	pSurface->oglId.buffer = OPENGL_INVALID_ID;
2251
2252	/* The surface type is sort of undefined now, even though the hints and format can help to clear that up.
2253	* In some case we'll have to wait until the surface is used to create the D3D object.
2254	*/
2255	switch (format)
2256	{
2257	case SVGA3D_Z_D32:
2258	case SVGA3D_Z_D16:
2259	case SVGA3D_Z_D24S8:
2260	case SVGA3D_Z_D15S1:
2261	case SVGA3D_Z_D24X8:
2262	case SVGA3D_Z_DF16:
2263	case SVGA3D_Z_DF24:
2264	case SVGA3D_Z_D24S8_INT:
2265	surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
2266	break;
2267
2268	/* Texture compression formats */
2269	case SVGA3D_DXT1:
2270	case SVGA3D_DXT2:
2271	case SVGA3D_DXT3:
2272	case SVGA3D_DXT4:
2273	case SVGA3D_DXT5:
2274	/* Bump-map formats */
2275	case SVGA3D_BUMPU8V8:
2276	case SVGA3D_BUMPL6V5U5:
2277	case SVGA3D_BUMPX8L8V8U8:
2278	case SVGA3D_BUMPL8V8U8:
2279	case SVGA3D_V8U8:
2280	case SVGA3D_Q8W8V8U8:
2281	case SVGA3D_CxV8U8:
2282	case SVGA3D_X8L8V8U8:
2283	case SVGA3D_A2W10V10U10:
2284	case SVGA3D_V16U16:
2285	/* Typical render target formats; we should allow render target buffers to be used as textures. */
2286	case SVGA3D_X8R8G8B8:
2287	case SVGA3D_A8R8G8B8:
2288	case SVGA3D_R5G6B5:
2289	case SVGA3D_X1R5G5B5:
2290	case SVGA3D_A1R5G5B5:
2291	case SVGA3D_A4R4G4B4:
2292	surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2293	break;
2294
2295	case SVGA3D_LUMINANCE8:
2296	case SVGA3D_LUMINANCE4_ALPHA4:
2297	case SVGA3D_LUMINANCE16:
2298	case SVGA3D_LUMINANCE8_ALPHA8:
2299	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB */
2300	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB */
2301	case SVGA3D_A2R10G10B10:
2302	case SVGA3D_ALPHA8:
2303	case SVGA3D_R_S10E5:
2304	case SVGA3D_R_S23E8:
2305	case SVGA3D_RG_S10E5:
2306	case SVGA3D_RG_S23E8:
2307	case SVGA3D_G16R16:
2308	case SVGA3D_A16B16G16R16:
2309	case SVGA3D_UYVY:
2310	case SVGA3D_YUY2:
2311	case SVGA3D_NV12:
2312	case SVGA3D_AYUV:
2313	case SVGA3D_BC4_UNORM:
2314	case SVGA3D_BC5_UNORM:
2315	break;
2316
2317	/*
2318	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
2319	* the most efficient format to use when creating new surfaces
2320	* expressly for index or vertex data.
2321	*/
2322	case SVGA3D_BUFFER:
2323	break;
2324
2325	default:
2326	break;
2327	}
2328
2329	pSurface->flags = surfaceFlags;
2330	pSurface->format = format;
2331	memcpy(pSurface->faces, face, sizeof(face));
2332	pSurface->cFaces = 1; /* check for cube maps later */
2333	pSurface->multiSampleCount = multisampleCount;
2334	pSurface->autogenFilter = autogenFilter;
2335	Assert(autogenFilter != SVGA3D_TEX_FILTER_FLATCUBIC);
2336	Assert(autogenFilter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2337	pSurface->pMipmapLevels = (PVMSVGA3DMIPMAPLEVEL)RTMemAllocZ(cMipLevels * sizeof(VMSVGA3DMIPMAPLEVEL));
2338	AssertReturn(pSurface->pMipmapLevels, VERR_NO_MEMORY);
2339
2340	for (uint32_t i=0; i < cMipLevels; i++)
2341	pSurface->pMipmapLevels[i].size = pMipLevelSize[i];
2342
2343	pSurface->cbBlock = vmsvga3dSurfaceFormatSize(format);
2344
2345	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))
2346	{
2347	case SVGA3D_SURFACE_CUBEMAP:
2348	Log(("SVGA3D_SURFACE_CUBEMAP\n"));
2349	pSurface->cFaces = 6;
2350	break;
2351
2352	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2353	Log(("SVGA3D_SURFACE_HINT_INDEXBUFFER\n"));
2354	/* else type unknown at this time; postpone buffer creation */
2355	break;
2356
2357	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2358	Log(("SVGA3D_SURFACE_HINT_VERTEXBUFFER\n"));
2359	/* Type unknown at this time; postpone buffer creation */
2360	break;
2361
2362	case SVGA3D_SURFACE_HINT_TEXTURE:
2363	Log(("SVGA3D_SURFACE_HINT_TEXTURE\n"));
2364	break;
2365
2366	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2367	Log(("SVGA3D_SURFACE_HINT_RENDERTARGET\n"));
2368	break;
2369
2370	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2371	Log(("SVGA3D_SURFACE_HINT_DEPTHSTENCIL\n"));
2372	break;
2373
2374	default:
2375	/* Unknown; decide later. */
2376	break;
2377	}
2378
2379	/* Allocate buffer to hold the surface data until we can move it into a D3D object */
2380	for (uint32_t iFace=0; iFace < pSurface->cFaces; iFace++)
2381	{
2382	for (uint32_t i=0; i < pSurface->faces[iFace].numMipLevels; i++)
2383	{
2384	uint32_t idx = i + iFace * pSurface->faces[0].numMipLevels;
2385
2386	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));
2387	Log(("vmsvga3dSurfaceDefine: cbPitch=%x cbBlock=%x \n", pSurface->cbBlock * pSurface->pMipmapLevels[idx].size.width, pSurface->cbBlock));
2388
2389	pSurface->pMipmapLevels[idx].cbSurfacePitch = pSurface->cbBlock * pSurface->pMipmapLevels[idx].size.width;
2390	pSurface->pMipmapLevels[idx].cbSurface = pSurface->pMipmapLevels[idx].cbSurfacePitch * pSurface->pMipmapLevels[idx].size.height * pSurface->pMipmapLevels[idx].size.depth;
2391	pSurface->pMipmapLevels[idx].pSurfaceData = RTMemAllocZ(pSurface->pMipmapLevels[idx].cbSurface);
2392	AssertReturn(pSurface->pMipmapLevels[idx].pSurfaceData, VERR_NO_MEMORY);
2393	}
2394	}
2395	return VINF_SUCCESS;
2396	}
2397
2398	int vmsvga3dSurfaceDestroy(PVGASTATE pThis, uint32_t sid)
2399	{
2400	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
2401	AssertReturn(pState, VERR_NO_MEMORY);
2402
2403	if ( sid < pState->cSurfaces
2404	&& pState->paSurface[sid].id == sid)
2405	{
2406	PVMSVGA3DSURFACE pSurface = &pState->paSurface[sid];
2407	PVMSVGA3DCONTEXT pContext = NULL;
2408
2409	Log(("vmsvga3dSurfaceDestroy id %x\n", sid));
2410
2411	/* @todo stricter checks for associated context */
2412	uint32_t cid = pSurface->idAssociatedContext;
2413	if ( cid <= pState->cContexts
2414	&& pState->paContext[cid].id == cid)
2415	{
2416	pContext = &pState->paContext[cid];
2417	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2418	}
2419	else
2420	{
2421	/* Pick any active context; we need something here */
2422	for (cid = 0; cid < pState->cContexts; cid++)
2423	{
2424	if (pState->paContext[cid].id == cid)
2425	{
2426	pContext = &pState->paContext[cid];
2427	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2428	break;
2429	}
2430	}
2431	AssertReturn(pContext, VERR_INTERNAL_ERROR); /* otherwise crashes/fails */
2432	}
2433
2434	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))
2435	{
2436	case SVGA3D_SURFACE_CUBEMAP:
2437	AssertFailed(); /* @todo */
2438	break;
2439
2440	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2441	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2442	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
2443	{
2444	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
2445	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2446	}
2447	break;
2448
2449	case SVGA3D_SURFACE_HINT_TEXTURE:
2450	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2451	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
2452	{
2453	glDeleteTextures(1, &pSurface->oglId.texture);
2454	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2455	}
2456	break;
2457
2458	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2459	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2460	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /* @todo actual texture surface not supported */
2461	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
2462	{
2463	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
2464	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2465	}
2466	break;
2467
2468	default:
2469	break;
2470	}
2471
2472	if (pSurface->pMipmapLevels)
2473	{
2474	for (uint32_t face=0; face < pSurface->cFaces; face++)
2475	{
2476	for (uint32_t i=0; i < pSurface->faces[face].numMipLevels; i++)
2477	{
2478	uint32_t idx = i + face * pSurface->faces[0].numMipLevels;
2479	if (pSurface->pMipmapLevels[idx].pSurfaceData)
2480	RTMemFree(pSurface->pMipmapLevels[idx].pSurfaceData);
2481	}
2482	}
2483	RTMemFree(pSurface->pMipmapLevels);
2484	}
2485
2486	memset(pSurface, 0, sizeof(*pSurface));
2487	pSurface->id = SVGA3D_INVALID_ID;
2488	}
2489	else
2490	AssertFailedReturn(VERR_INVALID_PARAMETER);
2491
2492	return VINF_SUCCESS;
2493	}
2494
2495	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
2496	{
2497	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
2498	uint32_t sidSrc = src.sid;
2499	uint32_t sidDest = dest.sid;
2500	int rc = VINF_SUCCESS;
2501
2502	AssertReturn(pState, VERR_NO_MEMORY);
2503	AssertReturn(sidSrc < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2504	AssertReturn(sidSrc < pState->cSurfaces && pState->paSurface[sidSrc].id == sidSrc, VERR_INVALID_PARAMETER);
2505	AssertReturn(sidDest < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2506	AssertReturn(sidDest < pState->cSurfaces && pState->paSurface[sidDest].id == sidDest, VERR_INVALID_PARAMETER);
2507
2508	for (uint32_t i = 0; i < cCopyBoxes; i++)
2509	{
2510	SVGA3dBox destBox, srcBox;
2511
2512	srcBox.x = pBox[i].srcx;
2513	srcBox.y = pBox[i].srcy;
2514	srcBox.z = pBox[i].srcz;
2515	srcBox.w = pBox[i].w;
2516	srcBox.h = pBox[i].h;
2517	srcBox.d = pBox[i].z;
2518
2519	destBox.x = pBox[i].x;
2520	destBox.y = pBox[i].y;
2521	destBox.z = pBox[i].z;
2522	destBox.w = pBox[i].w;
2523	destBox.h = pBox[i].h;
2524	destBox.z = pBox[i].z;
2525
2526	rc = vmsvga3dSurfaceStretchBlt(pThis, dest, destBox, src, srcBox, SVGA3D_STRETCH_BLT_LINEAR);
2527	AssertRCReturn(rc, rc);
2528	}
2529	return VINF_SUCCESS;
2530	}
2531
2532	/* Create D3D texture object for the specified surface. */
2533	static int vmsvga3dCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext, PVMSVGA3DSURFACE pSurface)
2534	{
2535	GLint activeTexture = 0;
2536
2537	glGenTextures(1, &pSurface->oglId.texture);
2538	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2539	/* @todo Set the mip map generation filter settings. */
2540
2541	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2542	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2543
2544	/* Must bind texture to the current context in order to change it. */
2545	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2546	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2547
2548	if (pSurface->fDirty)
2549	{
2550	Log(("vmsvga3dCreateTexture: sync dirty texture\n"));
2551	for (uint32_t i = 0; i < pSurface->faces[0].numMipLevels; i++)
2552	{
2553	if (pSurface->pMipmapLevels[i].fDirty)
2554	{
2555	Log(("vmsvga3dCreateTexture: sync dirty texture mipmap level %d (pitch %x)\n", i, pSurface->pMipmapLevels[i].cbSurfacePitch));
2556
2557	glTexImage2D(GL_TEXTURE_2D,
2558	i,
2559	pSurface->internalFormatGL,
2560	pSurface->pMipmapLevels[i].size.width,
2561	pSurface->pMipmapLevels[i].size.height,
2562	0,
2563	pSurface->formatGL,
2564	pSurface->typeGL,
2565	pSurface->pMipmapLevels[i].pSurfaceData);
2566
2567	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2568
2569	pSurface->pMipmapLevels[i].fDirty = false;
2570	}
2571	}
2572	pSurface->fDirty = false;
2573	}
2574	else
2575	/* Reserve texture memory. */
2576	glTexImage2D(GL_TEXTURE_2D,
2577	0,
2578	pSurface->internalFormatGL,
2579	pSurface->pMipmapLevels[0].size.width,
2580	pSurface->pMipmapLevels[0].size.height,
2581	0,
2582	pSurface->formatGL,
2583	pSurface->typeGL,
2584	NULL);
2585
2586	/* Restore the old active texture. */
2587	glBindTexture(GL_TEXTURE_2D, activeTexture);
2588	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2589
2590	pSurface->flags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2591	pSurface->idAssociatedContext = idAssociatedContext;
2592	return VINF_SUCCESS;
2593	}
2594
2595	int vmsvga3dSurfaceStretchBlt(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dBox destBox, SVGA3dSurfaceImageId src, SVGA3dBox srcBox, SVGA3dStretchBltMode mode)
2596	{
2597	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
2598	PVMSVGA3DSURFACE pSurfaceSrc;
2599	uint32_t sidSrc = src.sid;
2600	PVMSVGA3DSURFACE pSurfaceDest;
2601	uint32_t sidDest = dest.sid;
2602	int rc = VINF_SUCCESS;
2603	uint32_t cid;
2604	PVMSVGA3DCONTEXT pContext;
2605
2606	AssertReturn(pState, VERR_NO_MEMORY);
2607	AssertReturn(sidSrc < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2608	AssertReturn(sidSrc < pState->cSurfaces && pState->paSurface[sidSrc].id == sidSrc, VERR_INVALID_PARAMETER);
2609	AssertReturn(sidDest < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2610	AssertReturn(sidDest < pState->cSurfaces && pState->paSurface[sidDest].id == sidDest, VERR_INVALID_PARAMETER);
2611
2612	pSurfaceSrc = &pState->paSurface[sidSrc];
2613	pSurfaceDest = &pState->paSurface[sidDest];
2614	AssertReturn(pSurfaceSrc->faces[0].numMipLevels > src.mipmap, VERR_INVALID_PARAMETER);
2615	AssertReturn(pSurfaceDest->faces[0].numMipLevels > dest.mipmap, VERR_INVALID_PARAMETER);
2616
2617	Log(("vmsvga3dSurfaceStretchBlt: src sid=%x (%d,%d)(%d,%d) dest sid=%x (%d,%d)(%d,%d) mode=%x\n", src.sid, srcBox.x, srcBox.y, srcBox.x + srcBox.w, srcBox.y + srcBox.h, dest.sid, destBox.x, destBox.y, destBox.x + destBox.w, destBox.y + destBox.h, mode));
2618
2619	/* @todo stricter checks for associated context */
2620	cid = pSurfaceDest->idAssociatedContext;
2621	if (cid == SVGA3D_INVALID_ID)
2622	cid = pSurfaceSrc->idAssociatedContext;
2623
2624	if ( cid >= pState->cContexts
2625	\|\| pState->paContext[cid].id != cid)
2626	{
2627	Log(("vmsvga3dSurfaceStretchBlt invalid context id!\n"));
2628	AssertFailedReturn(VERR_INVALID_PARAMETER);
2629	}
2630	pContext = &pState->paContext[cid];
2631	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2632
2633	if (pSurfaceSrc->oglId.texture == OPENGL_INVALID_ID)
2634	{
2635	/* Unknown surface type; turn it into a texture, which can be used for other purposes too. */
2636	Log(("vmsvga3dSurfaceStretchBlt: unknown src surface id=%x type=%d format=%d -> create texture\n", sidSrc, pSurfaceSrc->flags, pSurfaceSrc->format));
2637	rc = vmsvga3dCreateTexture(pState, pContext, cid, pSurfaceSrc);
2638	AssertRCReturn(rc, rc);
2639	}
2640
2641	if (pSurfaceDest->oglId.texture == OPENGL_INVALID_ID)
2642	{
2643	/* Unknown surface type; turn it into a texture, which can be used for other purposes too. */
2644	Log(("vmsvga3dSurfaceStretchBlt: unknown dest surface id=%x type=%d format=%d -> create texture\n", sidDest, pSurfaceDest->flags, pSurfaceDest->format));
2645	rc = vmsvga3dCreateTexture(pState, pContext, cid, pSurfaceDest);
2646	AssertRCReturn(rc, rc);
2647	}
2648
2649	/* Activate the read and draw framebuffer objects. */
2650	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2651	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2652	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2653	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2654
2655	/* Bind the source and destination objects to the right place. */
2656	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurfaceSrc->oglId.texture, src.mipmap);
2657	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2658	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurfaceDest->oglId.texture, dest.mipmap);
2659	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2660
2661	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),
2662	srcBox.x + srcBox.w, D3D_TO_OGL_Y_COORD(pSurfaceSrc, srcBox.y), destBox.x, D3D_TO_OGL_Y_COORD(pSurfaceDest, destBox.y + destBox.h),
2663	destBox.x + destBox.w, D3D_TO_OGL_Y_COORD(pSurfaceDest, destBox.y)));
2664
2665	pState->ext.glBlitFramebuffer(srcBox.x,
2666	#ifdef MANUAL_FLIP_SURFACE_DATA
2667	D3D_TO_OGL_Y_COORD(pSurfaceSrc, srcBox.y + srcBox.h), /* inclusive */
2668	#else
2669	srcBox.y,
2670	#endif
2671	srcBox.x + srcBox.w, /* exclusive. */
2672	#ifdef MANUAL_FLIP_SURFACE_DATA
2673	D3D_TO_OGL_Y_COORD(pSurfaceSrc, srcBox.y), /* exclusive */
2674	#else
2675	srcBox.y + srcBox.h,
2676	#endif
2677	destBox.x,
2678	#ifdef MANUAL_FLIP_SURFACE_DATA
2679	D3D_TO_OGL_Y_COORD(pSurfaceDest, destBox.y + destBox.h), /* inclusive. */
2680	#else
2681	destBox.y,
2682	#endif
2683	destBox.x + destBox.w, /* exclusive. */
2684	#ifdef MANUAL_FLIP_SURFACE_DATA
2685	D3D_TO_OGL_Y_COORD(pSurfaceDest, destBox.y), /* exclusive */
2686	#else
2687	destBox.y + destBox.h,
2688	#endif
2689	GL_COLOR_BUFFER_BIT,
2690	(mode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2691	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2692
2693	/* Reset the frame buffer association */
2694	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2695	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2696
2697	return VINF_SUCCESS;
2698	}
2699
2700	int vmsvga3dSurfaceDMA(PVGASTATE pThis, SVGA3dGuestImage guest, SVGA3dSurfaceImageId host, SVGA3dTransferType transfer, uint32_t cCopyBoxes, SVGA3dCopyBox *pBoxes)
2701	{
2702	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
2703	PVMSVGA3DSURFACE pSurface;
2704	PVMSVGA3DMIPMAPLEVEL pMipLevel;
2705	uint32_t sid = host.sid;
2706	int rc = VINF_SUCCESS;
2707
2708	AssertReturn(pState, VERR_NO_MEMORY);
2709	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2710	AssertReturn(sid < pState->cSurfaces && pState->paSurface[sid].id == sid, VERR_INVALID_PARAMETER);
2711
2712	pSurface = &pState->paSurface[sid];
2713	AssertReturn(pSurface->faces[0].numMipLevels > host.mipmap, VERR_INVALID_PARAMETER);
2714	pMipLevel = &pSurface->pMipmapLevels[host.mipmap];
2715
2716	if (pSurface->flags & SVGA3D_SURFACE_HINT_TEXTURE)
2717	Log(("vmsvga3dSurfaceDMA TEXTURE guestptr gmr=%x offset=%x pitch=%x host sid=%x face=%d mipmap=%d transfer=%x cCopyBoxes=%d\n", guest.ptr.gmrId, guest.ptr.offset, guest.pitch, host.sid, host.face, host.mipmap, transfer, cCopyBoxes));
2718	else
2719	Log(("vmsvga3dSurfaceDMA guestptr gmr=%x offset=%x pitch=%x host sid=%x face=%d mipmap=%d transfer=%x cCopyBoxes=%d\n", guest.ptr.gmrId, guest.ptr.offset, guest.pitch, host.sid, host.face, host.mipmap, transfer, cCopyBoxes));
2720
2721	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2722	{
2723	AssertReturn(pSurface->pMipmapLevels[host.mipmap].pSurfaceData, VERR_INTERNAL_ERROR);
2724
2725	for (unsigned i = 0; i < cCopyBoxes; i++)
2726	{
2727	unsigned uDestOffset;
2728	unsigned cbSrcPitch;
2729	uint8_t *pBufferStart;
2730
2731	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));
2732	/* Apparently we're supposed to clip it (gmr test sample) */
2733	if (pBoxes[i].x + pBoxes[i].w > pMipLevel->size.width)
2734	pBoxes[i].w = pMipLevel->size.width - pBoxes[i].x;
2735	if (pBoxes[i].y + pBoxes[i].h > pMipLevel->size.height)
2736	pBoxes[i].h = pMipLevel->size.height - pBoxes[i].y;
2737	if (pBoxes[i].z + pBoxes[i].d > pMipLevel->size.depth)
2738	pBoxes[i].d = pMipLevel->size.depth - pBoxes[i].z;
2739
2740	if ( !pBoxes[i].w
2741	\|\| !pBoxes[i].h
2742	\|\| !pBoxes[i].d
2743	\|\| pBoxes[i].x > pMipLevel->size.width
2744	\|\| pBoxes[i].y > pMipLevel->size.height
2745	\|\| pBoxes[i].z > pMipLevel->size.depth)
2746	{
2747	Log(("Empty box; skip\n"));
2748	continue;
2749	}
2750
2751	uDestOffset = pBoxes[i].x * pSurface->cbBlock + pBoxes[i].y * pMipLevel->cbSurfacePitch + pBoxes[i].z * pMipLevel->size.height * pMipLevel->cbSurfacePitch;
2752	AssertReturn(uDestOffset + pBoxes[i].w * pSurface->cbBlock * pBoxes[i].h * pBoxes[i].d <= pMipLevel->cbSurface, VERR_INTERNAL_ERROR);
2753
2754	cbSrcPitch = (guest.pitch == 0) ? pBoxes[i].w * pSurface->cbBlock : guest.pitch;
2755	#ifdef MANUAL_FLIP_SURFACE_DATA
2756	pBufferStart = (uint8_t *)pMipLevel->pSurfaceData
2757	+ pBoxes[i].x * pSurface->cbBlock
2758	+ pMipLevel->cbSurface - pBoxes[i].y * pMipLevel->cbSurfacePitch
2759	- pMipLevel->cbSurfacePitch; /* flip image during copy */
2760	#else
2761	pBufferStart = (uint8_t *)pMipLevel->pSurfaceData + uDestOffset;
2762	#endif
2763	rc = vmsvgaGMRTransfer(pThis,
2764	transfer,
2765	pBufferStart,
2766	#ifdef MANUAL_FLIP_SURFACE_DATA
2767	-(int32_t)pMipLevel->cbSurfacePitch,
2768	#else
2769	(int32_t)pMipLevel->cbSurfacePitch,
2770	#endif
2771	guest.ptr,
2772	pBoxes[i].srcx * pSurface->cbBlock + (pBoxes[i].srcy + pBoxes[i].srcz * pBoxes[i].h) * cbSrcPitch,
2773	cbSrcPitch,
2774	pBoxes[i].w * pSurface->cbBlock,
2775	pBoxes[i].d * pBoxes[i].h);
2776
2777	Log4(("first line:\n%.*Rhxd\n", pMipLevel->cbSurface, pMipLevel->pSurfaceData));
2778
2779	AssertRC(rc);
2780	}
2781	pSurface->pMipmapLevels[host.mipmap].fDirty = true;
2782	pSurface->fDirty = true;
2783	}
2784	else
2785	{
2786	/* @todo stricter checks for associated context */
2787	uint32_t cid = pSurface->idAssociatedContext;
2788	if ( cid >= pState->cContexts
2789	\|\| pState->paContext[cid].id != cid)
2790	{
2791	Log(("vmsvga3dSurfaceDMA invalid context id (%x - %x)!\n", cid, (cid >= pState->cContexts) ? -1 : pState->paContext[cid].id));
2792	AssertFailedReturn(VERR_INVALID_PARAMETER);
2793	}
2794	PVMSVGA3DCONTEXT pContext = &pState->paContext[cid];
2795	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2796
2797	for (unsigned i = 0; i < cCopyBoxes; i++)
2798	{
2799	bool fVertex = false;
2800	unsigned cbSrcPitch;
2801
2802	/* Apparently we're supposed to clip it (gmr test sample) */
2803	if (pBoxes[i].x + pBoxes[i].w > pMipLevel->size.width)
2804	pBoxes[i].w = pMipLevel->size.width - pBoxes[i].x;
2805	if (pBoxes[i].y + pBoxes[i].h > pMipLevel->size.height)
2806	pBoxes[i].h = pMipLevel->size.height - pBoxes[i].y;
2807	if (pBoxes[i].z + pBoxes[i].d > pMipLevel->size.depth)
2808	pBoxes[i].d = pMipLevel->size.depth - pBoxes[i].z;
2809
2810	Assert((pBoxes[i].d == 1 \|\| pBoxes[i].d == 0) && pBoxes[i].z == 0);
2811
2812	if ( !pBoxes[i].w
2813	\|\| !pBoxes[i].h
2814	\|\| pBoxes[i].x > pMipLevel->size.width
2815	\|\| pBoxes[i].y > pMipLevel->size.height)
2816	{
2817	Log(("Empty box; skip\n"));
2818	continue;
2819	}
2820
2821	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));
2822
2823	cbSrcPitch = (guest.pitch == 0) ? pBoxes[i].w * pSurface->cbBlock : guest.pitch;
2824
2825	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))
2826	{
2827	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2828	case SVGA3D_SURFACE_HINT_TEXTURE:
2829	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2830	{
2831	uint32_t cbSurfacePitch;
2832	uint8_t pDoubleBuffer, pBufferStart;
2833	unsigned uDestOffset = 0;
2834
2835	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
2836	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2837
2838	if (transfer == SVGA3D_READ_HOST_VRAM)
2839	{
2840	GLint activeTexture;
2841
2842	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2843	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2844
2845	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2846	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2847
2848	glGetTexImage(GL_TEXTURE_2D,
2849	host.mipmap,
2850	pSurface->formatGL,
2851	pSurface->typeGL,
2852	pDoubleBuffer);
2853	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2854
2855	/* Restore the old active texture. */
2856	glBindTexture(GL_TEXTURE_2D, activeTexture);
2857	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2858
2859	uDestOffset = pBoxes[i].x * pSurface->cbBlock + pBoxes[i].y * pMipLevel->cbSurfacePitch;
2860	AssertReturn(uDestOffset + pBoxes[i].w * pSurface->cbBlock + (pBoxes[i].h - 1) * pMipLevel->cbSurfacePitch <= pMipLevel->cbSurface, VERR_INTERNAL_ERROR);
2861
2862	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2863
2864	#ifdef MANUAL_FLIP_SURFACE_DATA
2865	pBufferStart = pDoubleBuffer
2866	+ pBoxes[i].x * pSurface->cbBlock
2867	+ pMipLevel->cbSurface - pBoxes[i].y * cbSurfacePitch
2868	- cbSurfacePitch; /* flip image during copy */
2869	#else
2870	pBufferStart = pDoubleBuffer + uDestOffset;
2871	#endif
2872	}
2873	else
2874	{
2875	cbSurfacePitch = pBoxes[i].w * pSurface->cbBlock;
2876	#ifdef MANUAL_FLIP_SURFACE_DATA
2877	pBufferStart = pDoubleBuffer + cbSurfacePitch * pBoxes[i].h - cbSurfacePitch; /* flip image during copy */
2878	#else
2879	pBufferStart = pDoubleBuffer;
2880	#endif
2881	}
2882
2883	rc = vmsvgaGMRTransfer(pThis,
2884	transfer,
2885	pBufferStart,
2886	#ifdef MANUAL_FLIP_SURFACE_DATA
2887	-(int32_t)cbSurfacePitch,
2888	#else
2889	(int32_t)cbSurfacePitch,
2890	#endif
2891	guest.ptr,
2892	pBoxes[i].srcx * pSurface->cbBlock + pBoxes[i].srcy * cbSrcPitch,
2893	cbSrcPitch,
2894	pBoxes[i].w * pSurface->cbBlock,
2895	pBoxes[i].h);
2896	AssertRC(rc);
2897
2898	/* Update the opengl surface data. */
2899	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2900	{
2901	GLint activeTexture = 0;
2902	GLint alignment;
2903
2904	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2905	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2906
2907	/* Must bind texture to the current context in order to change it. */
2908	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2909	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2910
2911	Log(("vmsvga3dSurfaceDMA: copy texture mipmap level %d (pitch %x)\n", host.mipmap, pMipLevel->cbSurfacePitch));
2912
2913	/* Set row length and alignment of the input data. */
2914	glGetIntegerv(GL_UNPACK_ALIGNMENT, &alignment);
2915	glPixelStorei(GL_UNPACK_ROW_LENGTH, pBoxes[i].w);
2916	glPixelStorei(GL_UNPACK_ALIGNMENT, pSurface->cbBlock);
2917
2918	glTexSubImage2D(GL_TEXTURE_2D,
2919	host.mipmap,
2920	pBoxes[i].x,
2921	pBoxes[i].y,
2922	pBoxes[i].w,
2923	pBoxes[i].h,
2924	pSurface->formatGL,
2925	pSurface->typeGL,
2926	pDoubleBuffer);
2927
2928	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2929
2930	/* Restore old values. */
2931	glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
2932	glPixelStorei(GL_UNPACK_ALIGNMENT, alignment);
2933
2934	/* Restore the old active texture. */
2935	glBindTexture(GL_TEXTURE_2D, activeTexture);
2936	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2937	}
2938
2939	Log4(("first line:\n%.Rhxd\n", pBoxes[i].w pSurface->cbBlock, pDoubleBuffer));
2940
2941	/* Free the double buffer. */
2942	RTMemFree(pDoubleBuffer);
2943	break;
2944	}
2945
2946	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2947	AssertFailed(); /* @todo */
2948	break;
2949
2950	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2951	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2952	{
2953	uint8_t *pData;
2954	unsigned uDestOffset;
2955
2956	Assert(pBoxes[i].h == 1);
2957
2958	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2959	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2960
2961	pData = (uint8_t *)pState->ext.glMapBuffer(GL_ARRAY_BUFFER, (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY);
2962	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2963	Assert(pData);
2964
2965	uDestOffset = pBoxes[i].x * pSurface->cbBlock + pBoxes[i].y * pMipLevel->cbSurfacePitch;
2966	AssertReturn(uDestOffset + pBoxes[i].w * pSurface->cbBlock + (pBoxes[i].h - 1) * pMipLevel->cbSurfacePitch <= pMipLevel->cbSurface, VERR_INTERNAL_ERROR);
2967
2968	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n", (fVertex) ? "vertex" : "index", pBoxes[i].x, pBoxes[i].y, pBoxes[i].x + pBoxes[i].w, pBoxes[i].y + pBoxes[i].h));
2969
2970	rc = vmsvgaGMRTransfer(pThis,
2971	transfer,
2972	pData + uDestOffset,
2973	pMipLevel->cbSurfacePitch,
2974	guest.ptr,
2975	pBoxes[i].srcx * pSurface->cbBlock + pBoxes[i].srcy * cbSrcPitch,
2976	cbSrcPitch,
2977	pBoxes[i].w * pSurface->cbBlock,
2978	pBoxes[i].h);
2979	AssertRC(rc);
2980
2981	Log4(("first line:\n%.*Rhxd\n", cbSrcPitch, pData));
2982
2983	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2984	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2985
2986	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2987	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2988	break;
2989	}
2990
2991	default:
2992	AssertFailed();
2993	break;
2994	}
2995	}
2996	}
2997	return rc;
2998	}
2999
3000	int vmsvga3dSurfaceBlitToScreen(PVGASTATE pThis, uint32_t dest, SVGASignedRect destRect, SVGA3dSurfaceImageId src, SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *pRect)
3001	{
3002	/* Requires SVGA_FIFO_CAP_SCREEN_OBJECT support */
3003	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));
3004	for (uint32_t i = 0; i < cRects; i++)
3005	{
3006	Log(("vmsvga3dSurfaceBlitToScreen: clipping rect %d (%d,%d)(%d,%d)\n", i, pRect[i].left, pRect[i].top, pRect[i].right, pRect[i].bottom));
3007	}
3008
3009	/* @todo Only screen 0 for now. */
3010	AssertReturn(dest == 0, VERR_INTERNAL_ERROR);
3011	AssertReturn(src.mipmap == 0 && src.face == 0, VERR_INVALID_PARAMETER);
3012	/* @todo scaling */
3013	AssertReturn(destRect.right - destRect.left == srcRect.right - srcRect.left && destRect.bottom - destRect.top == srcRect.bottom - srcRect.top, VERR_INVALID_PARAMETER);
3014
3015	if (cRects == 0)
3016	{
3017	/* easy case; no clipping */
3018	SVGA3dCopyBox box;
3019	SVGA3dGuestImage dst;
3020
3021	box.x = destRect.left;
3022	box.y = destRect.top;
3023	box.z = 0;
3024	box.w = destRect.right - destRect.left;
3025	box.h = destRect.bottom - destRect.top;
3026	box.d = 1;
3027	box.srcx = srcRect.left;
3028	box.srcy = srcRect.top;
3029	box.srcz = 0;
3030
3031	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
3032	dst.ptr.offset = 0;
3033	dst.pitch = pThis->svga.cbScanline;
3034
3035	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
3036	AssertRCReturn(rc, rc);
3037
3038	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
3039	return VINF_SUCCESS;
3040	}
3041	else
3042	{
3043	SVGA3dGuestImage dst;
3044	SVGA3dCopyBox box;
3045
3046	box.srcz = 0;
3047	box.z = 0;
3048	box.d = 1;
3049
3050	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
3051	dst.ptr.offset = 0;
3052	dst.pitch = pThis->svga.cbScanline;
3053
3054	/* @todo merge into one SurfaceDMA call */
3055	for (uint32_t i = 0; i < cRects; i++)
3056	{
3057	/* The clipping rectangle is relative to the top-left corner of srcRect & destRect. Adjust here. */
3058	box.srcx = srcRect.left + pRect[i].left;
3059	box.srcy = srcRect.top + pRect[i].top;
3060
3061	box.x = pRect[i].left + destRect.left;
3062	box.y = pRect[i].top + destRect.top;
3063	box.z = 0;
3064	box.w = pRect[i].right - pRect[i].left;
3065	box.h = pRect[i].bottom - pRect[i].top;
3066
3067	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
3068	AssertRCReturn(rc, rc);
3069
3070	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
3071	}
3072
3073	return VINF_SUCCESS;
3074	}
3075	}
3076
3077	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
3078	{
3079	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
3080	PVMSVGA3DSURFACE pSurface;
3081	int rc = VINF_SUCCESS;
3082	PVMSVGA3DCONTEXT pContext;
3083	uint32_t cid;
3084	GLint activeTexture = 0;
3085
3086	AssertReturn(pState, VERR_NO_MEMORY);
3087	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
3088	AssertReturn(sid < pState->cSurfaces && pState->paSurface[sid].id == sid, VERR_INVALID_PARAMETER);
3089
3090	pSurface = &pState->paSurface[sid];
3091	AssertReturn(pSurface->idAssociatedContext != SVGA3D_INVALID_ID, VERR_INTERNAL_ERROR);
3092
3093	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
3094	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
3095	pSurface->autogenFilter = filter;
3096
3097	Log(("vmsvga3dGenerateMipmaps: sid=%x filter=%d\n", sid, filter));
3098
3099	/* @todo stricter checks for associated context */
3100	cid = pSurface->idAssociatedContext;
3101
3102	if ( cid >= pState->cContexts
3103	\|\| pState->paContext[cid].id != cid)
3104	{
3105	Log(("vmsvga3dGenerateMipmaps invalid context id!\n"));
3106	return VERR_INVALID_PARAMETER;
3107	}
3108	pContext = &pState->paContext[cid];
3109	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3110
3111	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
3112	{
3113	/* Unknown surface type; turn it into a texture. */
3114	Log(("vmsvga3dGenerateMipmaps: unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->flags, pSurface->format));
3115	rc = vmsvga3dCreateTexture(pState, pContext, cid, pSurface);
3116	AssertRCReturn(rc, rc);
3117	}
3118	else
3119	{
3120	/* @todo new filter */
3121	AssertFailed();
3122	}
3123
3124	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
3125	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3126
3127	/* Must bind texture to the current context in order to change it. */
3128	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
3129	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3130
3131	/* Generate the mip maps. */
3132	pState->ext.glGenerateMipmap(GL_TEXTURE_2D);
3133	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3134
3135	/* Restore the old texture. */
3136	glBindTexture(GL_TEXTURE_2D, activeTexture);
3137	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3138
3139	return VINF_SUCCESS;
3140	}
3141
3142	int vmsvga3dCommandPresent(PVGASTATE pThis, uint32_t sid, uint32_t cRects, SVGA3dCopyRect *pRect)
3143	{
3144	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
3145	PVMSVGA3DSURFACE pSurface;
3146	int rc = VINF_SUCCESS;
3147	PVMSVGA3DCONTEXT pContext;
3148	uint32_t cid;
3149	struct
3150	{
3151	uint32_t x;
3152	uint32_t y;
3153	uint32_t cx;
3154	uint32_t cy;
3155	} srcViewPort;
3156
3157	AssertReturn(pState, VERR_NO_MEMORY);
3158	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
3159	AssertReturn(sid < pState->cSurfaces && pState->paSurface[sid].id == sid, VERR_INVALID_PARAMETER);
3160
3161	pSurface = &pState->paSurface[sid];
3162	AssertReturn(pSurface->idAssociatedContext != SVGA3D_INVALID_ID, VERR_INTERNAL_ERROR);
3163
3164	/* @todo stricter checks for associated context */
3165	cid = pSurface->idAssociatedContext;
3166	Log(("vmsvga3dCommandPresent: sid=%x cRects=%d cid=%x\n", sid, cRects, cid));
3167	for (uint32_t i=0; i < cRects; i++)
3168	{
3169	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));
3170	}
3171
3172	if ( cid >= pState->cContexts
3173	\|\| pState->paContext[cid].id != cid)
3174	{
3175	Log(("vmsvga3dCommandPresent invalid context id!\n"));
3176	return VERR_INVALID_PARAMETER;
3177	}
3178	pContext = &pState->paContext[cid];
3179	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3180
3181	/* Source surface different size? */
3182	if (pSurface->pMipmapLevels[0].size.width != pThis->svga.uWidth \|\|
3183	pSurface->pMipmapLevels[0].size.height != pThis->svga.uHeight)
3184	{
3185	float xMultiplier = (float)pSurface->pMipmapLevels[0].size.width / (float)pThis->svga.uWidth;
3186	float yMultiplier = (float)pSurface->pMipmapLevels[0].size.height / (float)pThis->svga.uHeight;
3187
3188	LogFlow(("size (%d vs %d) (%d vs %d) multiplier %d\n", pSurface->pMipmapLevels[0].size.width, pThis->svga.uWidth, pSurface->pMipmapLevels[0].size.height, pThis->svga.uHeight, (int)(xMultiplier * 100.0), (int)(yMultiplier * 100.0)));
3189
3190	srcViewPort.x = (uint32_t)((float)pThis->svga.viewport.x * xMultiplier);
3191	srcViewPort.y = (uint32_t)((float)pThis->svga.viewport.y * yMultiplier);
3192	srcViewPort.cx = (uint32_t)((float)pThis->svga.viewport.cx * xMultiplier);
3193	srcViewPort.cy = (uint32_t)((float)pThis->svga.viewport.cy * yMultiplier);
3194	}
3195	else
3196	{
3197	srcViewPort.x = pThis->svga.viewport.x;
3198	srcViewPort.y = pThis->svga.viewport.y;
3199	srcViewPort.cx = pThis->svga.viewport.cx;
3200	srcViewPort.cy = pThis->svga.viewport.cy;
3201	}
3202
3203	#if 1
3204	/* @note this path is slightly faster than the glBlitFrameBuffer path below. */
3205	SVGA3dCopyRect rect;
3206	uint32_t oldVShader, oldPShader;
3207	GLint oldTextureId;
3208
3209	if (cRects == 0)
3210	{
3211	rect.x = rect.y = rect.srcx = rect.srcy = 0;
3212	rect.w = pSurface->pMipmapLevels[0].size.width;
3213	rect.h = pSurface->pMipmapLevels[0].size.height;
3214	pRect = &rect;
3215	cRects = 1;
3216	}
3217
3218	//glPushAttrib(GL_ENABLE_BIT \| GL_DEPTH_BUFFER_BIT \| GL_COLOR_BUFFER_BIT \| GL_VIEWPORT_BIT);
3219
3220	#if 0
3221	glDisable(GL_CULL_FACE);
3222	glDisable(GL_BLEND);
3223	glDisable(GL_ALPHA_TEST);
3224	glDisable(GL_SCISSOR_TEST);
3225	glDisable(GL_STENCIL_TEST);
3226	glEnable(GL_DEPTH_TEST);
3227	glDepthFunc(GL_ALWAYS);
3228	glDepthMask(GL_TRUE);
3229	glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
3230	glViewport(0, 0, pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height);
3231	#endif
3232
3233	glGetIntegerv(GL_TEXTURE_BINDING_2D, &oldTextureId);
3234
3235	oldVShader = pContext->state.shidVertex;
3236	oldPShader = pContext->state.shidPixel;
3237	vmsvga3dShaderSet(pThis, cid, SVGA3D_SHADERTYPE_VS, SVGA_ID_INVALID);
3238	vmsvga3dShaderSet(pThis, cid, SVGA3D_SHADERTYPE_PS, SVGA_ID_INVALID);
3239
3240	/* Flush shader changes. */
3241	if (pContext->pShaderContext)
3242	ShaderUpdateState(pContext->pShaderContext, 0);
3243
3244	/* Activate the read and draw framebuffer objects. */
3245	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
3246	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3247	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */);
3248	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3249
3250	pState->ext.glActiveTexture(GL_TEXTURE0);
3251	glEnable(GL_TEXTURE_2D);
3252	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
3253	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3254
3255	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
3256	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
3257
3258	// glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
3259	// glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
3260
3261	/* Reset the transformation matrices. */
3262	glMatrixMode(GL_MODELVIEW);
3263	glPushMatrix();
3264	glLoadIdentity();
3265	glMatrixMode(GL_PROJECTION);
3266	glPushMatrix();
3267	glLoadIdentity();
3268	glScalef(1.0f, -1.0f, 1.0f);
3269	glOrtho(0, pThis->svga.uWidth, pThis->svga.uHeight, 0, 0.0, -1.0);
3270
3271	for (uint32_t i = 0; i < cRects; i++)
3272	{
3273	float left, right, top, bottom; /* Texture coordinates */
3274	int vertexLeft, vertexRight, vertexTop, vertexBottom;
3275
3276	pRect[i].srcx = RT_MAX(pRect[i].srcx, srcViewPort.x);
3277	pRect[i].srcy = RT_MAX(pRect[i].srcy, srcViewPort.y);
3278	pRect[i].x = RT_MAX(pRect[i].x, pThis->svga.viewport.x) - pThis->svga.viewport.x;
3279	pRect[i].y = RT_MAX(pRect[i].y, pThis->svga.viewport.y) - pThis->svga.viewport.y;
3280	pRect[i].w = pThis->svga.viewport.cx;
3281	pRect[i].h = pThis->svga.viewport.cy;
3282
3283	if ( pRect[i].x + pRect[i].w <= pThis->svga.viewport.x
3284	\|\| pThis->svga.viewport.x + pThis->svga.viewport.cx <= pRect[i].x
3285	\|\| pRect[i].y + pRect[i].h <= pThis->svga.viewport.y
3286	\|\| pThis->svga.viewport.y + pThis->svga.viewport.cy <= pRect[i].y)
3287	{
3288	/* Intersection is empty; skip */
3289	continue;
3290	}
3291
3292	left = pRect[i].srcx;
3293	right = pRect[i].srcx + pRect[i].w;
3294	top = pRect[i].srcy + pRect[i].h;
3295	bottom = pRect[i].srcy;
3296
3297	left /= pSurface->pMipmapLevels[0].size.width;
3298	right /= pSurface->pMipmapLevels[0].size.width;
3299	top /= pSurface->pMipmapLevels[0].size.height;
3300	bottom /= pSurface->pMipmapLevels[0].size.height;
3301
3302	vertexLeft = pRect[i].x;
3303	vertexRight = pRect[i].x + pRect[i].w;
3304	vertexTop = ((uint32_t)pThis->svga.uHeight >= pRect[i].y + pRect[i].h) ? pThis->svga.uHeight - pRect[i].y - pRect[i].h : 0;
3305	vertexBottom = pThis->svga.uHeight - pRect[i].y;
3306
3307	Log(("view port (%d,%d)(%d,%d)\n", srcViewPort.x, srcViewPort.y, srcViewPort.cx, srcViewPort.cy));
3308	Log(("vertex (%d,%d) (%d,%d) (%d,%d) (%d,%d)\n", vertexLeft, vertexBottom, vertexLeft, vertexTop, vertexRight, vertexTop, vertexRight, vertexBottom));
3309	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)));
3310
3311	glBegin(GL_QUADS);
3312	/* bottom left */
3313	glTexCoord2f(left, bottom);
3314	glVertex2i(vertexLeft, vertexBottom);
3315
3316	/* top left */
3317	glTexCoord2f(left, top);
3318	glVertex2i(vertexLeft, vertexTop);
3319
3320	/* top right */
3321	glTexCoord2f(right, top);
3322	glVertex2i(vertexRight, vertexTop);
3323
3324	/* bottom right */
3325	glTexCoord2f(right, bottom);
3326	glVertex2i(vertexRight, vertexBottom);
3327
3328	glEnd();
3329	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3330	}
3331
3332	/* Restore old settings. */
3333	glMatrixMode(GL_PROJECTION);
3334	glPopMatrix();
3335	glMatrixMode(GL_MODELVIEW);
3336	glPopMatrix();
3337
3338	//glPopAttrib();
3339
3340	glBindTexture(GL_TEXTURE_2D, oldTextureId);
3341	vmsvga3dShaderSet(pThis, cid, SVGA3D_SHADERTYPE_VS, oldVShader);
3342	vmsvga3dShaderSet(pThis, cid, SVGA3D_SHADERTYPE_PS, oldPShader);
3343
3344	/* Reset the frame buffer association */
3345	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3346	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3347
3348	#else
3349	/* Activate the read and draw framebuffer objects. */
3350	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
3351	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3352	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */);
3353	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3354
3355	/* Bind the source objects to the right place. */
3356	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurface->oglId.texture, 0 /* level 0 */);
3357	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3358
3359	/* Blit the surface rectangle(s) to the back buffer. */
3360	if (cRects == 0)
3361	{
3362	Log(("view port (%d,%d)(%d,%d)\n", srcViewPort.x, srcViewPort.y, srcViewPort.cx, srcViewPort.cy));
3363	pState->ext.glBlitFramebuffer(srcViewPort.x,
3364	srcViewPort.y,
3365	srcViewPort.x + srcViewPort.cx, /* exclusive. */
3366	srcViewPort.y + srcViewPort.cy, /* exclusive. (reverse to flip the image) */
3367	0,
3368	pThis->svga.viewport.cy, /* exclusive. */
3369	pThis->svga.viewport.cx, /* exclusive. */
3370	0,
3371	GL_COLOR_BUFFER_BIT,
3372	GL_LINEAR);
3373	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3374	}
3375	else
3376	{
3377	for (uint32_t i = 0; i < cRects; i++)
3378	{
3379	if ( pRect[i].x + pRect[i].w <= pThis->svga.viewport.x
3380	\|\| pThis->svga.viewport.x + pThis->svga.viewport.cx <= pRect[i].x
3381	\|\| pRect[i].y + pRect[i].h <= pThis->svga.viewport.y
3382	\|\| pThis->svga.viewport.y + pThis->svga.viewport.cy <= pRect[i].y)
3383	{
3384	/* Intersection is empty; skip */
3385	continue;
3386	}
3387
3388	pState->ext.glBlitFramebuffer(RT_MAX(pRect[i].srcx, srcViewPort.x),
3389	pSurface->pMipmapLevels[0].size.width - RT_MAX(pRect[i].srcy, srcViewPort.y), /* exclusive. (reverse to flip the image) */
3390	RT_MIN(pRect[i].srcx + pRect[i].w, srcViewPort.x + srcViewPort.cx), /* exclusive. */
3391	pSurface->pMipmapLevels[0].size.width - RT_MIN(pRect[i].srcy + pRect[i].h, srcViewPort.y + srcViewPort.cy),
3392	RT_MAX(pRect[i].x, pThis->svga.viewport.x) - pThis->svga.viewport.x,
3393	pThis->svga.uHeight - (RT_MIN(pRect[i].y + pRect[i].h, pThis->svga.viewport.y + pThis->svga.viewport.cy) - pThis->svga.viewport.y), /* exclusive. */
3394	RT_MIN(pRect[i].x + pRect[i].w, pThis->svga.viewport.x + pThis->svga.viewport.cx) - pThis->svga.viewport.x, /* exclusive. */
3395	pThis->svga.uHeight - (RT_MAX(pRect[i].y, pThis->svga.viewport.y) - pThis->svga.viewport.y),
3396	GL_COLOR_BUFFER_BIT,
3397	GL_LINEAR);
3398	}
3399	}
3400	/* Reset the frame buffer association */
3401	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3402	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3403	#endif
3404
3405	/* Flip the front and back buffers. */
3406	#ifdef RT_OS_WINDOWS
3407	BOOL ret = SwapBuffers(pContext->hdc);
3408	AssertMsg(ret, ("SwapBuffers failed with %d\n", GetLastError()));
3409	#elif defined(RT_OS_DARWIN)
3410	vmsvga3dCocoaSwapBuffers(pContext->cocoaView, pContext->cocoaContext);
3411	#else
3412	/* show the window if not already done */
3413	if (!pContext->fMapped)
3414	{
3415	XMapWindow(pState->display, pContext->window);
3416	pContext->fMapped = true;
3417	}
3418	/* now swap the buffers, i.e. display the rendering result */
3419	glXSwapBuffers(pState->display, pContext->window);
3420	#endif
3421	return VINF_SUCCESS;
3422	}
3423
3424	#ifdef RT_OS_LINUX
3425	/**
3426	* X11 event handling thread
3427	* @param ThreadSelf thread handle
3428	* @param pvUser pointer to pState structure
3429	* @returns VBox status code
3430	*/
3431	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD ThreadSelf, void *pvUser)
3432	{
3433	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3434	while (!pState->bTerminate)
3435	{
3436	while (XPending(pState->display) > 0)
3437	{
3438	XEvent event;
3439	XNextEvent(pState->display, &event);
3440
3441	switch (event.type)
3442	{
3443	default:
3444	break;
3445	}
3446	}
3447	/* sleep for 16ms to not burn too many cycles */
3448	RTThreadSleep(16);
3449	}
3450	return VINF_SUCCESS;
3451	}
3452	#endif // RT_OS_LINUX
3453
3454
3455	/**
3456	* Create a new 3d context
3457	*
3458	* @returns VBox status code.
3459	* @param pThis VGA device instance data.
3460	* @param cid Context id
3461	* @param fOtherProfile When clear, the context is created using the default
3462	* OpenGL profile. When set, it's created using the
3463	* alternative profile. The latter is only allowed if
3464	* the VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE is set.
3465	*/
3466	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid, bool fOtherProfile)
3467	{
3468	int rc;
3469	PVMSVGA3DCONTEXT pContext;
3470	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
3471
3472	AssertReturn(pState, VERR_NO_MEMORY);
3473	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3474	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
3475	AssertReturn(!fOtherProfile, VERR_INTERNAL_ERROR_3);
3476	#endif
3477
3478	Log(("vmsvga3dContextDefine id %x\n", cid));
3479	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
3480	if (pState->idTestContext == SVGA_ID_INVALID)
3481	{
3482	pState->idTestContext = 207;
3483	rc = vmsvga3dContextDefine(pThis, pState->idTestContext, false /fOtherProfile/);
3484	AssertRCReturn(rc, rc);
3485	}
3486	#endif
3487
3488	if (cid >= pState->cContexts)
3489	{
3490	pState->paContext = (PVMSVGA3DCONTEXT)RTMemRealloc(pState->paContext, sizeof(VMSVGA3DCONTEXT) * (cid + 1));
3491	AssertReturn(pState->paContext, VERR_NO_MEMORY);
3492	memset(&pState->paContext[pState->cContexts], 0, sizeof(VMSVGA3DCONTEXT) * (cid + 1 - pState->cContexts));
3493	for (uint32_t i = pState->cContexts; i < cid + 1; i++)
3494	pState->paContext[i].id = SVGA3D_INVALID_ID;
3495
3496	pState->cContexts = cid + 1;
3497	}
3498	/* If one already exists with this id, then destroy it now. */
3499	if (pState->paContext[cid].id != SVGA3D_INVALID_ID)
3500	vmsvga3dContextDestroy(pThis, cid);
3501
3502	pContext = &pState->paContext[cid];
3503	memset(pContext, 0, sizeof(*pContext));
3504	pContext->id = cid;
3505	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTexture); i++)
3506	pContext->aSidActiveTexture[i] = SVGA3D_INVALID_ID;
3507
3508	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
3509	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3510	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3511	pContext->idFramebuffer = OPENGL_INVALID_ID;
3512	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3513	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3514
3515	rc = ShaderContextCreate(&pContext->pShaderContext);
3516	AssertRCReturn(rc, rc);
3517
3518	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3519	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3520
3521	AssertReturn(pThis->svga.u64HostWindowId, VERR_INTERNAL_ERROR);
3522
3523	#ifdef RT_OS_WINDOWS
3524	/* Create a context window. */
3525	CREATESTRUCT cs;
3526	cs.lpCreateParams = NULL;
3527	cs.dwExStyle = WS_EX_NOACTIVATE \| WS_EX_NOPARENTNOTIFY \| WS_EX_TRANSPARENT;
3528	# ifdef DEBUG_GFX_WINDOW
3529	cs.lpszName = (char *)RTMemAllocZ(256);
3530	RTStrPrintf((char *)cs.lpszName, 256, "Context %d OpenGL Window", cid);
3531	# else
3532	cs.lpszName = NULL;
3533	# endif
3534	cs.lpszClass = 0;
3535	# ifdef DEBUG_GFX_WINDOW
3536	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_VISIBLE \| WS_CAPTION;
3537	# else
3538	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_DISABLED \| WS_CHILD \| WS_VISIBLE;
3539	# endif
3540	cs.x = 0;
3541	cs.y = 0;
3542	cs.cx = pThis->svga.uWidth;
3543	cs.cy = pThis->svga.uHeight;
3544	cs.hwndParent = (HWND)pThis->svga.u64HostWindowId;
3545	cs.hMenu = NULL;
3546	cs.hInstance = pState->hInstance;
3547
3548	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_CREATEWINDOW, (WPARAM)&pContext->hwnd, (LPARAM)&cs);
3549	AssertRCReturn(rc, rc);
3550
3551	pContext->hdc = GetDC(pContext->hwnd);
3552	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3553
3554	PIXELFORMATDESCRIPTOR pfd = {
3555	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3556	1, /* version number */
3557	PFD_DRAW_TO_WINDOW \| /* support window */
3558	PFD_DOUBLEBUFFER \| /* support double buffering */
3559	PFD_SUPPORT_OPENGL, /* support OpenGL */
3560	PFD_TYPE_RGBA, /* RGBA type */
3561	24, /* 24-bit color depth */
3562	0, 0, 0, 0, 0, 0, /* color bits ignored */
3563	8, /* alpha buffer */
3564	0, /* shift bit ignored */
3565	0, /* no accumulation buffer */
3566	0, 0, 0, 0, /* accum bits ignored */
3567	16, /* set depth buffer */
3568	16, /* set stencil buffer */
3569	0, /* no auxiliary buffer */
3570	PFD_MAIN_PLANE, /* main layer */
3571	0, /* reserved */
3572	0, 0, 0 /* layer masks ignored */
3573	};
3574	int pixelFormat;
3575	BOOL ret;
3576
3577	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3578	/* @todo is this really necessary?? */
3579	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3580	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3581
3582	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3583	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3584
3585	pContext->hglrc = wglCreateContext(pContext->hdc);
3586	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3587
3588	// TODO isn't this default on Linux since OpenGL 1.1?
3589	/* Find the first active context to share the display list with (necessary for sharing e.g. textures between contexts). */
3590	for (uint32_t i = 0; i < pState->cContexts; i++)
3591	{
3592	if ( pState->paContext[i].id != SVGA3D_INVALID_ID
3593	&& i != pContext->id)
3594	{
3595	Log(("Sharing display lists between cid=%d and cid=%d\n", pContext->id, i));
3596	ret = wglShareLists(pState->paContext[i].hglrc, pContext->hglrc);
3597	Assert(ret == TRUE);
3598	break;
3599	}
3600	}
3601
3602	#elif defined(RT_OS_DARWIN)
3603	pContext->fOtherProfile = fOtherProfile;
3604
3605	/* Find the first active context to share the display list with (necessary for sharing e.g. textures between contexts). */
3606	NativeNSOpenGLContextRef shareContext = NULL;
3607	for (uint32_t i = 0; i < pState->cContexts; i++)
3608	{
3609	if ( pState->paContext[i].id != SVGA3D_INVALID_ID
3610	&& i != pContext->id
3611	&& pState->paContext[i].fOtherProfile == fOtherProfile)
3612	{
3613	Log(("Sharing display lists between cid=%d and cid=%d\n", pContext->id, i));
3614	shareContext = pState->paContext[i].cocoaContext;
3615	break;
3616	}
3617	}
3618	vmsvga3dCocoaCreateContext(&pContext->cocoaContext, shareContext, fOtherProfile);
3619	NativeNSViewRef pHostView = (NativeNSViewRef)pThis->svga.u64HostWindowId;
3620	vmsvga3dCocoaCreateView(&pContext->cocoaView, pHostView);
3621
3622	#else
3623	Window hostWindow = (Window)pThis->svga.u64HostWindowId;
3624
3625	if (pState->display == NULL)
3626	{
3627	/* get an X display and make sure we have glX 1.3 */
3628	pState->display = XOpenDisplay(0);
3629	Assert(pState->display);
3630	int glxMajor, glxMinor;
3631	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3632	AssertMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3633	/* start our X event handling thread */
3634	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3635	if (RT_FAILURE(rc))
3636	{
3637	AssertMsgFailed(("%s: Async IO Thread creation for 3d window handling failed rc=%d\n", __FUNCTION__, rc));
3638	return rc;
3639	}
3640	}
3641	int attrib[] =
3642	{
3643	GLX_RGBA,
3644	GLX_RED_SIZE, 1,
3645	GLX_GREEN_SIZE, 1,
3646	GLX_BLUE_SIZE, 1,
3647	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3648	GLX_DOUBLEBUFFER,
3649	None
3650	};
3651	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3652	XSetWindowAttributes swa;
3653	swa.colormap = XCreateColormap(pState->display, XDefaultRootWindow(pState->display), vi->visual, AllocNone);
3654	swa.border_pixel = 0;
3655	swa.background_pixel = 0;
3656	swa.event_mask = StructureNotifyMask \| ExposureMask;
3657	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3658	pContext->window = XCreateWindow(pState->display, hostWindow,//XDefaultRootWindow(pState->display),//hostWindow,
3659	0, 0, pThis->svga.uWidth, pThis->svga.uHeight,
3660	0, vi->depth, InputOutput,
3661	vi->visual, flags, &swa);
3662	AssertMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3663	uint32_t cardinal_alpha = (uint32_t) (0.5 * (uint32_t)-1) ;
3664
3665	/* the window is hidden by default and only mapped when CommandPresent is executed on it */
3666
3667	/* Find the first active context to share the display list with (necessary for sharing e.g. textures between contexts). */
3668	GLXContext shareContext = NULL;
3669	for (uint32_t i = 0; i < pState->cContexts; i++)
3670	{
3671	if ( pState->paContext[i].id != SVGA3D_INVALID_ID
3672	&& i != pContext->id)
3673	{
3674	Log(("Sharing display lists between cid=%d and cid=%d\n", pContext->id, i));
3675	shareContext = pState->paContext[i].glxContext;
3676	break;
3677	}
3678	}
3679
3680	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3681	AssertMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3682	#endif
3683
3684	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3685
3686	/* NULL during the first PowerOn call. */
3687	if (pState->ext.glGenFramebuffers)
3688	{
3689	/* Create a framebuffer object for this context. */
3690	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3691	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3692
3693	/* Bind the object to the framebuffer target. */
3694	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3695	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3696
3697	/* Create read and draw framebuffer objects for this context. */
3698	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3699	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3700
3701	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3702	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3703
3704	}
3705	#if 0
3706	/* @todo move to shader lib!!! */
3707	/* Clear the screen */
3708	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3709
3710	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3711	glClearIndex(0);
3712	glClearDepth(1);
3713	glClearStencil(0xffff);
3714	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3715	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3716	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3717	if (pState->ext.glProvokingVertex)
3718	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3719	/* @todo move to shader lib!!! */
3720	#endif
3721	return VINF_SUCCESS;
3722	}
3723
3724	/**
3725	* Destroy an existing 3d context
3726	*
3727	* @returns VBox status code.
3728	* @param pThis VGA device instance data.
3729	* @param cid Context id
3730	*/
3731	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3732	{
3733	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
3734	AssertReturn(pState, VERR_NO_MEMORY);
3735
3736	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3737
3738	if ( cid < pState->cContexts
3739	&& pState->paContext[cid].id == cid)
3740	{
3741	PVMSVGA3DCONTEXT pContext = &pState->paContext[cid];
3742
3743	Log(("vmsvga3dContextDestroy id %x\n", cid));
3744
3745	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3746
3747	/* Destroy all leftover pixel shaders. */
3748	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3749	{
3750	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3751	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3752	}
3753	if (pContext->paPixelShader)
3754	RTMemFree(pContext->paPixelShader);
3755
3756	/* Destroy all leftover vertex shaders. */
3757	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3758	{
3759	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3760	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3761	}
3762	if (pContext->paVertexShader)
3763	RTMemFree(pContext->paVertexShader);
3764
3765	if (pContext->state.paVertexShaderConst)
3766	RTMemFree(pContext->state.paVertexShaderConst);
3767	if (pContext->state.paPixelShaderConst)
3768	RTMemFree(pContext->state.paPixelShaderConst);
3769
3770	if (pContext->pShaderContext)
3771	{
3772	int rc = ShaderContextDestroy(pContext->pShaderContext);
3773	AssertRC(rc);
3774	}
3775
3776	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3777	{
3778	/* Unbind the object from the framebuffer target. */
3779	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3780	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3781	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3782	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3783
3784	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3785	{
3786	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3787	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3788	}
3789	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3790	{
3791	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3792	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3793	}
3794	}
3795	#ifdef RT_OS_WINDOWS
3796	wglMakeCurrent(NULL, NULL);
3797	wglDeleteContext(pContext->hglrc);
3798	ReleaseDC(pContext->hwnd, pContext->hdc);
3799
3800	/* Destroy the window we've created. */
3801	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3802	AssertRC(rc);
3803	#elif defined(RT_OS_DARWIN)
3804	vmsvga3dCocoaDestroyView(pContext->cocoaView);
3805	vmsvga3dCocoaDestroyContext(pContext->cocoaContext);
3806	#elif defined(RT_OS_LINUX)
3807	glXMakeCurrent(pState->display, None, NULL);
3808	glXDestroyContext(pState->display, pContext->glxContext);
3809	XDestroyWindow(pState->display, pContext->window);
3810	#endif
3811
3812	memset(pContext, 0, sizeof(*pContext));
3813	pContext->id = SVGA3D_INVALID_ID;
3814
3815	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3816	}
3817	else
3818	AssertFailed();
3819
3820	return VINF_SUCCESS;
3821	}
3822
3823	/* Handle resize */
3824	int vmsvga3dChangeMode(PVGASTATE pThis)
3825	{
3826	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
3827	AssertReturn(pState, VERR_NO_MEMORY);
3828
3829	/* Resize all active contexts. */
3830	for (uint32_t i = 0; i < pState->cContexts; i++)
3831	{
3832	PVMSVGA3DCONTEXT pContext = &pState->paContext[i];
3833	uint32_t cid = pContext->id;
3834
3835	if (cid != SVGA3D_INVALID_ID)
3836	{
3837	#ifdef RT_OS_WINDOWS
3838	CREATESTRUCT cs;
3839
3840	memset(&cs, 0, sizeof(cs));
3841	cs.cx = pThis->svga.uWidth;
3842	cs.cy = pThis->svga.uHeight;
3843
3844	/* Resize the window. */
3845	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_RESIZEWINDOW, (WPARAM)pContext->hwnd, (LPARAM)&cs);
3846	AssertRC(rc);
3847	#elif defined(RT_OS_DARWIN)
3848	vmsvga3dCocoaViewSetSize(pContext->cocoaView, pThis->svga.uWidth, pThis->svga.uHeight);
3849	#elif defined(RT_OS_LINUX)
3850	XWindowChanges wc;
3851	wc.width = pThis->svga.uWidth;
3852	wc.height = pThis->svga.uHeight;
3853	XConfigureWindow(pState->display, pContext->window, CWWidth \| CWHeight, &wc);
3854	#endif
3855	}
3856	}
3857	return VINF_SUCCESS;
3858	}
3859
3860
3861	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3862	{
3863	PVMSVGA3DCONTEXT pContext;
3864	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
3865	AssertReturn(pState, VERR_NO_MEMORY);
3866	bool fModelViewChanged = false;
3867
3868	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
3869
3870	if ( cid >= pState->cContexts
3871	\|\| pState->paContext[cid].id != cid)
3872	{
3873	Log(("vmsvga3dSetTransform invalid context id!\n"));
3874	return VERR_INVALID_PARAMETER;
3875	}
3876	pContext = &pState->paContext[cid];
3877	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3878
3879	/* Save this matrix for vm state save/restore. */
3880	pContext->state.aTransformState[type].fValid = true;
3881	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3882	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3883
3884	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)));
3885	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)));
3886	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)));
3887	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)));
3888
3889	switch (type)
3890	{
3891	case SVGA3D_TRANSFORM_VIEW:
3892	/* View * World = Model View */
3893	glMatrixMode(GL_MODELVIEW);
3894	glLoadMatrixf(matrix);
3895	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3896	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3897	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3898	fModelViewChanged = true;
3899	break;
3900
3901	case SVGA3D_TRANSFORM_PROJECTION:
3902	{
3903	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix);
3904	AssertRCReturn(rc, rc);
3905	break;
3906	}
3907
3908	case SVGA3D_TRANSFORM_TEXTURE0:
3909	glMatrixMode(GL_TEXTURE);
3910	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3911	glLoadMatrixf(matrix);
3912	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3913	break;
3914
3915	case SVGA3D_TRANSFORM_TEXTURE1:
3916	case SVGA3D_TRANSFORM_TEXTURE2:
3917	case SVGA3D_TRANSFORM_TEXTURE3:
3918	case SVGA3D_TRANSFORM_TEXTURE4:
3919	case SVGA3D_TRANSFORM_TEXTURE5:
3920	case SVGA3D_TRANSFORM_TEXTURE6:
3921	case SVGA3D_TRANSFORM_TEXTURE7:
3922	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3923	return VERR_INVALID_PARAMETER;
3924
3925	case SVGA3D_TRANSFORM_WORLD:
3926	/* View * World = Model View */
3927	glMatrixMode(GL_MODELVIEW);
3928	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3929	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3930	else
3931	glLoadIdentity();
3932	glMultMatrixf(matrix);
3933	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3934	fModelViewChanged = true;
3935	break;
3936
3937	case SVGA3D_TRANSFORM_WORLD1:
3938	case SVGA3D_TRANSFORM_WORLD2:
3939	case SVGA3D_TRANSFORM_WORLD3:
3940	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3941	return VERR_INVALID_PARAMETER;
3942
3943	default:
3944	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3945	return VERR_INVALID_PARAMETER;
3946	}
3947
3948	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3949	if (fModelViewChanged)
3950	{
3951	/* Reprogram the clip planes. */
3952	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3953	{
3954	if (pContext->state.aClipPlane[j].fValid == true)
3955	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3956	}
3957
3958	/* Reprogram the light data. */
3959	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3960	{
3961	if (pContext->state.aLightData[j].fValidData == true)
3962	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3963	}
3964	}
3965
3966	return VINF_SUCCESS;
3967	}
3968
3969	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3970	{
3971	PVMSVGA3DCONTEXT pContext;
3972	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
3973	AssertReturn(pState, VERR_NO_MEMORY);
3974
3975	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3976
3977	if ( cid >= pState->cContexts
3978	\|\| pState->paContext[cid].id != cid)
3979	{
3980	Log(("vmsvga3dSetZRange invalid context id!\n"));
3981	return VERR_INVALID_PARAMETER;
3982	}
3983	pContext = &pState->paContext[cid];
3984	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3985
3986	pContext->state.zRange = zRange;
3987	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3988
3989	if (zRange.min < -1.0)
3990	zRange.min = -1.0;
3991	if (zRange.max > 1.0)
3992	zRange.max = 1.0;
3993
3994	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3995	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3996	return VINF_SUCCESS;
3997	}
3998
3999	/**
4000	* Convert SVGA blend op value to its OpenGL equivalent
4001	*/
4002	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
4003	{
4004	switch (blendOp)
4005	{
4006	case SVGA3D_BLENDOP_ZERO:
4007	return GL_ZERO;
4008	case SVGA3D_BLENDOP_ONE:
4009	return GL_ONE;
4010	case SVGA3D_BLENDOP_SRCCOLOR:
4011	return GL_SRC_COLOR;
4012	case SVGA3D_BLENDOP_INVSRCCOLOR:
4013	return GL_ONE_MINUS_SRC_COLOR;
4014	case SVGA3D_BLENDOP_SRCALPHA:
4015	return GL_SRC_ALPHA;
4016	case SVGA3D_BLENDOP_INVSRCALPHA:
4017	return GL_ONE_MINUS_SRC_ALPHA;
4018	case SVGA3D_BLENDOP_DESTALPHA:
4019	return GL_DST_ALPHA;
4020	case SVGA3D_BLENDOP_INVDESTALPHA:
4021	return GL_ONE_MINUS_DST_ALPHA;
4022	case SVGA3D_BLENDOP_DESTCOLOR:
4023	return GL_DST_COLOR;
4024	case SVGA3D_BLENDOP_INVDESTCOLOR:
4025	return GL_ONE_MINUS_DST_COLOR;
4026	case SVGA3D_BLENDOP_SRCALPHASAT:
4027	return GL_SRC_ALPHA_SATURATE;
4028	case SVGA3D_BLENDOP_BLENDFACTOR:
4029	return GL_CONSTANT_ALPHA; /* @todo correct?? */
4030	case SVGA3D_BLENDOP_INVBLENDFACTOR:
4031	return GL_ONE_MINUS_CONSTANT_ALPHA; /* @todo correct?? */
4032	default:
4033	AssertFailed();
4034	return GL_ONE;
4035	}
4036	}
4037
4038	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
4039	{
4040	switch (blendEq)
4041	{
4042	case SVGA3D_BLENDEQ_ADD:
4043	return GL_FUNC_ADD;
4044	case SVGA3D_BLENDEQ_SUBTRACT:
4045	return GL_FUNC_SUBTRACT;
4046	case SVGA3D_BLENDEQ_REVSUBTRACT:
4047	return GL_FUNC_REVERSE_SUBTRACT;
4048	case SVGA3D_BLENDEQ_MINIMUM:
4049	return GL_MIN;
4050	case SVGA3D_BLENDEQ_MAXIMUM:
4051	return GL_MAX;
4052	default:
4053	AssertFailed();
4054	return GL_FUNC_ADD;
4055	}
4056	}
4057
4058	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
4059	{
4060	switch (cmpFunc)
4061	{
4062	case SVGA3D_CMP_NEVER:
4063	return GL_NEVER;
4064	case SVGA3D_CMP_LESS:
4065	return GL_LESS;
4066	case SVGA3D_CMP_EQUAL:
4067	return GL_EQUAL;
4068	case SVGA3D_CMP_LESSEQUAL:
4069	return GL_LEQUAL;
4070	case SVGA3D_CMP_GREATER:
4071	return GL_GREATER;
4072	case SVGA3D_CMP_NOTEQUAL:
4073	return GL_NOTEQUAL;
4074	case SVGA3D_CMP_GREATEREQUAL:
4075	return GL_GEQUAL;
4076	case SVGA3D_CMP_ALWAYS:
4077	return GL_ALWAYS;
4078	default:
4079	AssertFailed();
4080	return GL_LESS;
4081	}
4082	}
4083
4084	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
4085	{
4086	switch (stencilOp)
4087	{
4088	case SVGA3D_STENCILOP_KEEP:
4089	return GL_KEEP;
4090	case SVGA3D_STENCILOP_ZERO:
4091	return GL_ZERO;
4092	case SVGA3D_STENCILOP_REPLACE:
4093	return GL_REPLACE;
4094	case SVGA3D_STENCILOP_INCRSAT:
4095	return GL_INCR_WRAP;
4096	case SVGA3D_STENCILOP_DECRSAT:
4097	return GL_DECR_WRAP;
4098	case SVGA3D_STENCILOP_INVERT:
4099	return GL_INVERT;
4100	case SVGA3D_STENCILOP_INCR:
4101	return GL_INCR;
4102	case SVGA3D_STENCILOP_DECR:
4103	return GL_DECR;
4104	default:
4105	AssertFailed();
4106	return GL_KEEP;
4107	}
4108	}
4109
4110	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
4111	{
4112	uint32_t val;
4113	PVMSVGA3DCONTEXT pContext;
4114	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
4115	AssertReturn(pState, VERR_NO_MEMORY);
4116
4117	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
4118
4119	if ( cid >= pState->cContexts
4120	\|\| pState->paContext[cid].id != cid)
4121	{
4122	Log(("vmsvga3dSetRenderState invalid context id!\n"));
4123	return VERR_INVALID_PARAMETER;
4124	}
4125	pContext = &pState->paContext[cid];
4126	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4127
4128	for (unsigned i = 0; i < cRenderStates; i++)
4129	{
4130	GLenum enableCap = ~0U;
4131	Log(("vmsvga3dSetRenderState: cid=%d state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
4132	/* Save the render state for vm state saving. */
4133	if (pRenderState[i].state < SVGA3D_RS_MAX)
4134	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
4135
4136	switch (pRenderState[i].state)
4137	{
4138	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
4139	enableCap = GL_DEPTH_TEST;
4140	val = pRenderState[i].uintValue;
4141	break;
4142
4143	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
4144	glDepthMask(!!pRenderState[i].uintValue);
4145	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4146	break;
4147
4148	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
4149	enableCap = GL_ALPHA_TEST;
4150	val = pRenderState[i].uintValue;
4151	break;
4152
4153	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
4154	enableCap = GL_DITHER;
4155	val = pRenderState[i].uintValue;
4156	break;
4157
4158	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
4159	enableCap = GL_FOG;
4160	val = pRenderState[i].uintValue;
4161	break;
4162
4163	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
4164	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4165	break;
4166
4167	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
4168	enableCap = GL_LIGHTING;
4169	val = pRenderState[i].uintValue;
4170	break;
4171
4172	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
4173	/* not applicable */
4174	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4175	break;
4176
4177	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
4178	enableCap = GL_POINT_SPRITE_ARB;
4179	val = pRenderState[i].uintValue;
4180	break;
4181
4182	case SVGA3D_RS_POINTSIZE: /* float */
4183	/* @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
4184	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
4185	pRenderState[i].floatValue = pState->caps.flPointSize[0];
4186	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
4187	pRenderState[i].floatValue = pState->caps.flPointSize[1];
4188
4189	glPointSize(pRenderState[i].floatValue);
4190	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4191	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4192	break;
4193
4194	case SVGA3D_RS_POINTSIZEMIN: /* float */
4195	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
4196	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4197	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4198	break;
4199
4200	case SVGA3D_RS_POINTSIZEMAX: /* float */
4201	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
4202	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4203	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4204	break;
4205
4206	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
4207	case SVGA3D_RS_POINTSCALE_A: /* float */
4208	case SVGA3D_RS_POINTSCALE_B: /* float */
4209	case SVGA3D_RS_POINTSCALE_C: /* float */
4210	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4211	break;
4212
4213	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
4214	{
4215	GLfloat color[4]; /* red, green, blue, alpha */
4216
4217	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4218
4219	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
4220	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4221	break;
4222	}
4223
4224	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
4225	{
4226	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
4227	for (uint32_t j = 0; j <= 5; j++)
4228	{
4229	if (pRenderState[i].uintValue & RT_BIT(j))
4230	glEnable(GL_CLIP_PLANE0 + j);
4231	else
4232	glDisable(GL_CLIP_PLANE0 + j);
4233	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4234	}
4235	break;
4236	}
4237
4238	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
4239	{
4240	GLfloat color[4]; /* red, green, blue, alpha */
4241
4242	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4243
4244	glFogfv(GL_FOG_COLOR, color);
4245	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4246	break;
4247	}
4248
4249	case SVGA3D_RS_FOGSTART: /* float */
4250	glFogf(GL_FOG_START, pRenderState[i].floatValue);
4251	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4252	break;
4253
4254	case SVGA3D_RS_FOGEND: /* float */
4255	glFogf(GL_FOG_END, pRenderState[i].floatValue);
4256	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4257	break;
4258
4259	case SVGA3D_RS_FOGDENSITY: /* float */
4260	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
4261	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4262	break;
4263
4264	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
4265	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
4266	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4267	break;
4268
4269	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
4270	{
4271	SVGA3dFogMode mode;
4272	mode.uintValue = pRenderState[i].uintValue;
4273
4274	enableCap = GL_FOG_MODE;
4275	switch (mode.s.function)
4276	{
4277	case SVGA3D_FOGFUNC_EXP:
4278	val = GL_EXP;
4279	break;
4280	case SVGA3D_FOGFUNC_EXP2:
4281	val = GL_EXP2;
4282	break;
4283	case SVGA3D_FOGFUNC_LINEAR:
4284	val = GL_LINEAR;
4285	break;
4286	default:
4287	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
4288	break;
4289	}
4290
4291	/* @todo how to switch between vertex and pixel fog modes??? */
4292	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
4293	#if 0
4294	/* The fog type determines the render state. */
4295	switch (mode.s.type)
4296	{
4297	case SVGA3D_FOGTYPE_VERTEX:
4298	renderState = D3DRS_FOGVERTEXMODE;
4299	break;
4300	case SVGA3D_FOGTYPE_PIXEL:
4301	renderState = D3DRS_FOGTABLEMODE;
4302	break;
4303	default:
4304	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
4305	break;
4306	}
4307	#endif
4308
4309	/* Set the fog base to depth or range. */
4310	switch (mode.s.base)
4311	{
4312	case SVGA3D_FOGBASE_DEPTHBASED:
4313	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
4314	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4315	break;
4316	case SVGA3D_FOGBASE_RANGEBASED:
4317	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
4318	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4319	break;
4320	default:
4321	/* ignore */
4322	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
4323	break;
4324	}
4325	break;
4326	}
4327
4328	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
4329	{
4330	SVGA3dFillMode mode;
4331
4332	mode.uintValue = pRenderState[i].uintValue;
4333
4334	switch (mode.s.mode)
4335	{
4336	case SVGA3D_FILLMODE_POINT:
4337	val = GL_POINT;
4338	break;
4339	case SVGA3D_FILLMODE_LINE:
4340	val = GL_LINE;
4341	break;
4342	case SVGA3D_FILLMODE_FILL:
4343	val = GL_FILL;
4344	break;
4345	default:
4346	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
4347	break;
4348	}
4349	/* @note only front and back faces */
4350	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
4351	glPolygonMode(GL_FRONT_AND_BACK, val);
4352	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4353	break;
4354	}
4355
4356	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
4357	switch (pRenderState[i].uintValue)
4358	{
4359	case SVGA3D_SHADEMODE_FLAT:
4360	val = GL_FLAT;
4361	break;
4362
4363	case SVGA3D_SHADEMODE_SMOOTH:
4364	val = GL_SMOOTH;
4365	break;
4366
4367	default:
4368	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4369	break;
4370	}
4371
4372	glShadeModel(val);
4373	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4374	break;
4375
4376	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
4377	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
4378	/* @todo */
4379	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
4380	/*
4381	renderState = D3DRS_LINEPATTERN;
4382	val = pRenderState[i].uintValue;
4383	*/
4384	break;
4385
4386	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
4387	enableCap = GL_LINE_SMOOTH;
4388	val = pRenderState[i].uintValue;
4389	break;
4390
4391	case SVGA3D_RS_LINEWIDTH: /* float */
4392	glLineWidth(pRenderState[i].floatValue);
4393	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4394	break;
4395
4396	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4397	{
4398	/* Refresh the blending state based on the new enable setting. */
4399	SVGA3dRenderState renderstate[2];
4400
4401	renderstate[0].state = SVGA3D_RS_SRCBLEND;
4402	renderstate[0].uintValue = pContext->state.aRenderState[SVGA3D_RS_SRCBLEND].uintValue;
4403	renderstate[1].state = SVGA3D_RS_BLENDEQUATION;
4404	renderstate[1].uintValue = pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue;
4405
4406	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
4407	AssertRCReturn(rc, rc);
4408
4409	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
4410	continue; /* ignore if blend is already enabled */
4411	/* no break */
4412	}
4413
4414	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
4415	enableCap = GL_BLEND;
4416	val = pRenderState[i].uintValue;
4417	break;
4418
4419	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4420	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4421	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4422	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4423	{
4424	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4425	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4426
4427	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4428	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4429	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4430	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4431	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4432	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4433	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4434	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4435
4436	switch (pRenderState[i].state)
4437	{
4438	case SVGA3D_RS_SRCBLEND:
4439	srcRGB = blendop;
4440	break;
4441	case SVGA3D_RS_DSTBLEND:
4442	dstRGB = blendop;
4443	break;
4444	case SVGA3D_RS_SRCBLENDALPHA:
4445	srcAlpha = blendop;
4446	break;
4447	case SVGA3D_RS_DSTBLENDALPHA:
4448	dstAlpha = blendop;
4449	break;
4450	default:
4451	/* not possible; shut up gcc */
4452	AssertFailed();
4453	break;
4454	}
4455
4456	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4457	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4458	else
4459	glBlendFunc(srcRGB, dstRGB);
4460	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4461	break;
4462	}
4463
4464	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4465	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4466	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4467	pState->ext.glBlendEquationSeparate(vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue),
4468	vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue));
4469	else
4470	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4471	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4472	break;
4473
4474	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4475	{
4476	GLfloat red, green, blue, alpha;
4477
4478	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4479
4480	pState->ext.glBlendColor(red, green, blue, alpha);
4481	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4482	break;
4483	}
4484
4485	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4486	{
4487	GLenum mode = GL_BACK; /* default for OpenGL */
4488
4489	switch (pRenderState[i].uintValue)
4490	{
4491	case SVGA3D_FACE_NONE:
4492	break;
4493	case SVGA3D_FACE_FRONT:
4494	mode = GL_FRONT;
4495	break;
4496	case SVGA3D_FACE_BACK:
4497	mode = GL_BACK;
4498	break;
4499	case SVGA3D_FACE_FRONT_BACK:
4500	mode = GL_FRONT_AND_BACK;
4501	break;
4502	default:
4503	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4504	break;
4505	}
4506	enableCap = GL_CULL_FACE;
4507	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4508	{
4509	glCullFace(mode);
4510	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4511	val = 1;
4512	}
4513	else
4514	val = 0;
4515	break;
4516	}
4517
4518	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4519	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4520	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4521	break;
4522
4523	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4524	{
4525	GLclampf ref;
4526
4527	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4528	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4529	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4530	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4531	break;
4532	}
4533
4534	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4535	{
4536	GLint func;
4537
4538	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4539	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4540	glAlphaFunc(func, pRenderState[i].floatValue);
4541	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4542	break;
4543	}
4544
4545	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4546	enableCap = GL_STENCIL_TEST;
4547	val = pRenderState[i].uintValue;
4548	break;
4549
4550	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4551	case SVGA3D_RS_STENCILREF: /* uint32_t */
4552	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4553	{
4554	GLint func, ref;
4555	GLuint mask;
4556
4557	glGetIntegerv(GL_STENCIL_FUNC, &func);
4558	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4559	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4560	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4561	glGetIntegerv(GL_STENCIL_REF, &ref);
4562	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4563
4564	switch (pRenderState[i].state)
4565	{
4566	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4567	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4568	break;
4569
4570	case SVGA3D_RS_STENCILREF: /* uint32_t */
4571	ref = pRenderState[i].uintValue;
4572	break;
4573
4574	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4575	mask = pRenderState[i].uintValue;
4576	break;
4577
4578	default:
4579	/* not possible; shut up gcc */
4580	AssertFailed();
4581	break;
4582	}
4583
4584	glStencilFunc(func, ref, mask);
4585	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4586	break;
4587	}
4588
4589	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4590	glStencilMask(pRenderState[i].uintValue);
4591	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4592	break;
4593
4594	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4595	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4596	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4597	{
4598	GLint sfail, dpfail, dppass;
4599	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4600
4601	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4602	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4603	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4604	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4605	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4606	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4607
4608	switch (pRenderState[i].state)
4609	{
4610	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4611	sfail = stencilop;
4612	break;
4613	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4614	dpfail = stencilop;
4615	break;
4616	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4617	dppass = stencilop;
4618	break;
4619	default:
4620	/* not possible; shut up gcc */
4621	AssertFailed();
4622	break;
4623	}
4624	glStencilOp(sfail, dpfail, dppass);
4625	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4626	break;
4627	}
4628
4629	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4630	/* @note GL_EXT_stencil_two_side required! */
4631	if (pState->ext.fEXT_stencil_two_side)
4632	{
4633	enableCap = GL_STENCIL_TEST_TWO_SIDE_EXT;
4634	val = pRenderState[i].uintValue;
4635	}
4636	else
4637	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_STENCILENABLE2SIDED\n"));
4638	break;
4639
4640	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4641	{
4642	/* @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4643	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4644	*/
4645	GLint ref;
4646	GLuint mask;
4647
4648	glGetIntegerv(GL_STENCIL_BACK_VALUE_MASK, (GLint *)&mask);
4649	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4650	glGetIntegerv(GL_STENCIL_BACK_REF, &ref);
4651	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4652
4653	pState->ext.glStencilFuncSeparate(GL_BACK, vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref, mask);
4654	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4655	break;
4656	}
4657
4658	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4659	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4660	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4661	{
4662	/* @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4663	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4664	*/
4665	GLint sfail, dpfail, dppass;
4666	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4667
4668	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4669	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4670	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4671	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4672	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4673	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4674
4675	switch (pRenderState[i].state)
4676	{
4677	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4678	sfail = stencilop;
4679	break;
4680	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4681	dpfail = stencilop;
4682	break;
4683	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4684	dppass = stencilop;
4685	break;
4686	default:
4687	/* not possible; shut up gcc */
4688	AssertFailed();
4689	break;
4690	}
4691	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4692	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4693	break;
4694	}
4695
4696	case SVGA3D_RS_ZBIAS: /* float */
4697	/* @todo unknown meaning; depth bias is not identical
4698	renderState = D3DRS_DEPTHBIAS;
4699	val = pRenderState[i].uintValue;
4700	*/
4701	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4702	break;
4703
4704	case SVGA3D_RS_DEPTHBIAS: /* float */
4705	{
4706	GLfloat factor;
4707
4708	/* @todo not sure if the d3d & ogl definitions are identical. */
4709
4710	/* Do not change the factor part. */
4711	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4712	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4713
4714	glPolygonOffset(factor, pRenderState[i].floatValue);
4715	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4716	break;
4717	}
4718
4719	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4720	{
4721	GLfloat units;
4722
4723	/* @todo not sure if the d3d & ogl definitions are identical. */
4724
4725	/* Do not change the factor part. */
4726	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4727	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4728
4729	glPolygonOffset(pRenderState[i].floatValue, units);
4730	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4731	break;
4732	}
4733
4734	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4735	{
4736	GLboolean red, green, blue, alpha;
4737	SVGA3dColorMask mask;
4738
4739	mask.uintValue = pRenderState[i].uintValue;
4740
4741	red = mask.s.red;
4742	green = mask.s.green;
4743	blue = mask.s.blue;
4744	alpha = mask.s.alpha;
4745
4746	glColorMask(red, green, blue, alpha);
4747	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4748	break;
4749	}
4750
4751	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4752	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4753	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4754	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4755	break;
4756
4757	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4758	enableCap = GL_SCISSOR_TEST;
4759	val = pRenderState[i].uintValue;
4760	break;
4761
4762	#if 0
4763	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4764	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4765	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4766	val = pRenderState[i].uintValue;
4767	break;
4768
4769	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4770	renderState = D3DRS_SPECULARMATERIALSOURCE;
4771	val = pRenderState[i].uintValue;
4772	break;
4773
4774	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4775	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4776	val = pRenderState[i].uintValue;
4777	break;
4778
4779	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4780	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4781	val = pRenderState[i].uintValue;
4782	break;
4783	#endif
4784
4785	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4786	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4787	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4788	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4789	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4790	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4791	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4792	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4793	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4794	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4795	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4796	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4797	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4798	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4799	break;
4800
4801	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4802	case SVGA3D_RS_TWEENFACTOR: /* float */
4803	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4804	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4805	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4806	break;
4807
4808	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4809	enableCap = GL_MULTISAMPLE;
4810	val = pRenderState[i].uintValue;
4811	break;
4812
4813	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4814	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4815	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4816	break;
4817
4818	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4819	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4820	/* @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4821	/*
4822	renderState = D3DRS_COORDINATETYPE;
4823	val = pRenderState[i].uintValue;
4824	*/
4825	break;
4826
4827	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4828	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4829	/* Invert the selected mode because of y-inversion (?) */
4830	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4831	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4832	break;
4833
4834	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4835	//AssertFailed();
4836	/*
4837	D3DRS_SRGBWRITEENABLE ??
4838	renderState = D3DRS_OUTPUTGAMMA;
4839	val = pRenderState[i].uintValue;
4840	*/
4841	break;
4842
4843	#if 0
4844
4845	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4846	//AssertFailed();
4847	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4848	val = pRenderState[i].uintValue;
4849	break;
4850
4851	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4852	renderState = D3DRS_TEXTUREFACTOR;
4853	val = pRenderState[i].uintValue;
4854	break;
4855
4856	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4857	renderState = D3DRS_LOCALVIEWER;
4858	val = pRenderState[i].uintValue;
4859	break;
4860
4861	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4862	AssertFailed();
4863	/*
4864	renderState = D3DRS_ZVISIBLE;
4865	val = pRenderState[i].uintValue;
4866	*/
4867	break;
4868
4869	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4870	renderState = D3DRS_CLIPPING;
4871	val = pRenderState[i].uintValue;
4872	break;
4873
4874	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4875	glTexParameter GL_TEXTURE_WRAP_S
4876	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4877	renderState = D3DRS_WRAP0;
4878	val = pRenderState[i].uintValue;
4879	break;
4880
4881	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4882	glTexParameter GL_TEXTURE_WRAP_T
4883	renderState = D3DRS_WRAP1;
4884	val = pRenderState[i].uintValue;
4885	break;
4886
4887	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4888	glTexParameter GL_TEXTURE_WRAP_R
4889	renderState = D3DRS_WRAP2;
4890	val = pRenderState[i].uintValue;
4891	break;
4892
4893
4894	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4895	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4896	val = pRenderState[i].uintValue;
4897	break;
4898
4899
4900	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4901	renderState = D3DRS_BLENDOPALPHA;
4902	val = pRenderState[i].uintValue;
4903	break;
4904
4905	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4906	AssertFailed();
4907	/*
4908	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4909	val = pRenderState[i].uintValue;
4910	*/
4911	break;
4912
4913	#endif
4914	default:
4915	AssertFailed();
4916	break;
4917	}
4918
4919	if (enableCap != ~0U)
4920	{
4921	if (val)
4922	glEnable(enableCap);
4923	else
4924	glDisable(enableCap);
4925	}
4926	}
4927
4928	return VINF_SUCCESS;
4929	}
4930
4931	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4932	{
4933	PVMSVGA3DCONTEXT pContext;
4934	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
4935	PVMSVGA3DSURFACE pRenderTarget;
4936
4937	AssertReturn(pState, VERR_NO_MEMORY);
4938	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4939	AssertReturn(target.face == 0, VERR_INVALID_PARAMETER);
4940	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4941
4942	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
4943
4944	if ( cid >= pState->cContexts
4945	\|\| pState->paContext[cid].id != cid)
4946	{
4947	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
4948	return VERR_INVALID_PARAMETER;
4949	}
4950	pContext = &pState->paContext[cid];
4951	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4952
4953	/* Save for vm state save/restore. */
4954	pContext->state.aRenderTargets[type] = target.sid;
4955
4956	if (target.sid == SVGA3D_INVALID_ID)
4957	{
4958	/* Disable render target. */
4959	switch (type)
4960	{
4961	case SVGA3D_RT_DEPTH:
4962	case SVGA3D_RT_STENCIL:
4963	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4964	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4965	break;
4966
4967	case SVGA3D_RT_COLOR0:
4968	case SVGA3D_RT_COLOR1:
4969	case SVGA3D_RT_COLOR2:
4970	case SVGA3D_RT_COLOR3:
4971	case SVGA3D_RT_COLOR4:
4972	case SVGA3D_RT_COLOR5:
4973	case SVGA3D_RT_COLOR6:
4974	case SVGA3D_RT_COLOR7:
4975	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
4976	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4977	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4978	break;
4979
4980	default:
4981	AssertFailedReturn(VERR_INVALID_PARAMETER);
4982	}
4983	return VINF_SUCCESS;
4984	}
4985
4986	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
4987	AssertReturn(target.sid < pState->cSurfaces && pState->paSurface[target.sid].id == target.sid, VERR_INVALID_PARAMETER);
4988	pRenderTarget = &pState->paSurface[target.sid];
4989
4990	switch (type)
4991	{
4992	case SVGA3D_RT_DEPTH:
4993	case SVGA3D_RT_STENCIL:
4994	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4995	{
4996	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->flags, pRenderTarget->internalFormatGL));
4997	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4998	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4999
5000	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
5001	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5002
5003	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
5004	pRenderTarget->internalFormatGL,
5005	pRenderTarget->pMipmapLevels[0].size.width,
5006	pRenderTarget->pMipmapLevels[0].size.height);
5007	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5008
5009	pRenderTarget->idAssociatedContext = cid;
5010	}
5011	else
5012	{
5013	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
5014	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5015	}
5016	Assert(pRenderTarget->idAssociatedContext == cid);
5017	Assert(!pRenderTarget->fDirty);
5018	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
5019
5020	pRenderTarget->flags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
5021
5022	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
5023	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5024	break;
5025
5026	case SVGA3D_RT_COLOR0:
5027	case SVGA3D_RT_COLOR1:
5028	case SVGA3D_RT_COLOR2:
5029	case SVGA3D_RT_COLOR3:
5030	case SVGA3D_RT_COLOR4:
5031	case SVGA3D_RT_COLOR5:
5032	case SVGA3D_RT_COLOR6:
5033	case SVGA3D_RT_COLOR7:
5034	{
5035	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
5036	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
5037	{
5038	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));
5039	int rc = vmsvga3dCreateTexture(pState, pContext, cid, pRenderTarget);
5040	AssertRCReturn(rc, rc);
5041	}
5042
5043	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
5044	Assert(!pRenderTarget->fDirty);
5045
5046	pRenderTarget->flags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
5047
5048	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
5049	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5050
5051	pContext->sidRenderTarget = target.sid;
5052
5053	#ifdef DEBUG
5054	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
5055	if (status != GL_FRAMEBUFFER_COMPLETE)
5056	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
5057	#endif
5058	/* @todo use glDrawBuffers too? */
5059	break;
5060	}
5061
5062	default:
5063	AssertFailedReturn(VERR_INVALID_PARAMETER);
5064	}
5065
5066	return VINF_SUCCESS;
5067	}
5068
5069	#if 0
5070	/**
5071	* Convert SVGA texture combiner value to its D3D equivalent
5072	*/
5073	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
5074	{
5075	switch (value)
5076	{
5077	case SVGA3D_TC_DISABLE:
5078	return D3DTOP_DISABLE;
5079	case SVGA3D_TC_SELECTARG1:
5080	return D3DTOP_SELECTARG1;
5081	case SVGA3D_TC_SELECTARG2:
5082	return D3DTOP_SELECTARG2;
5083	case SVGA3D_TC_MODULATE:
5084	return D3DTOP_MODULATE;
5085	case SVGA3D_TC_ADD:
5086	return D3DTOP_ADD;
5087	case SVGA3D_TC_ADDSIGNED:
5088	return D3DTOP_ADDSIGNED;
5089	case SVGA3D_TC_SUBTRACT:
5090	return D3DTOP_SUBTRACT;
5091	case SVGA3D_TC_BLENDTEXTUREALPHA:
5092	return D3DTOP_BLENDTEXTUREALPHA;
5093	case SVGA3D_TC_BLENDDIFFUSEALPHA:
5094	return D3DTOP_BLENDDIFFUSEALPHA;
5095	case SVGA3D_TC_BLENDCURRENTALPHA:
5096	return D3DTOP_BLENDCURRENTALPHA;
5097	case SVGA3D_TC_BLENDFACTORALPHA:
5098	return D3DTOP_BLENDFACTORALPHA;
5099	case SVGA3D_TC_MODULATE2X:
5100	return D3DTOP_MODULATE2X;
5101	case SVGA3D_TC_MODULATE4X:
5102	return D3DTOP_MODULATE4X;
5103	case SVGA3D_TC_DSDT:
5104	AssertFailed(); /* @todo ??? */
5105	return D3DTOP_DISABLE;
5106	case SVGA3D_TC_DOTPRODUCT3:
5107	return D3DTOP_DOTPRODUCT3;
5108	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
5109	return D3DTOP_BLENDTEXTUREALPHAPM;
5110	case SVGA3D_TC_ADDSIGNED2X:
5111	return D3DTOP_ADDSIGNED2X;
5112	case SVGA3D_TC_ADDSMOOTH:
5113	return D3DTOP_ADDSMOOTH;
5114	case SVGA3D_TC_PREMODULATE:
5115	return D3DTOP_PREMODULATE;
5116	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
5117	return D3DTOP_MODULATEALPHA_ADDCOLOR;
5118	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
5119	return D3DTOP_MODULATECOLOR_ADDALPHA;
5120	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
5121	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
5122	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
5123	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
5124	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
5125	return D3DTOP_BUMPENVMAPLUMINANCE;
5126	case SVGA3D_TC_MULTIPLYADD:
5127	return D3DTOP_MULTIPLYADD;
5128	case SVGA3D_TC_LERP:
5129	return D3DTOP_LERP;
5130	default:
5131	AssertFailed();
5132	return D3DTOP_DISABLE;
5133	}
5134	}
5135
5136	/**
5137	* Convert SVGA texture arg data value to its D3D equivalent
5138	*/
5139	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
5140	{
5141	switch (value)
5142	{
5143	case SVGA3D_TA_CONSTANT:
5144	return D3DTA_CONSTANT;
5145	case SVGA3D_TA_PREVIOUS:
5146	return D3DTA_CURRENT; /* current = previous */
5147	case SVGA3D_TA_DIFFUSE:
5148	return D3DTA_DIFFUSE;
5149	case SVGA3D_TA_TEXTURE:
5150	return D3DTA_TEXTURE;
5151	case SVGA3D_TA_SPECULAR:
5152	return D3DTA_SPECULAR;
5153	default:
5154	AssertFailed();
5155	return 0;
5156	}
5157	}
5158
5159	/**
5160	* Convert SVGA texture transform flag value to its D3D equivalent
5161	*/
5162	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
5163	{
5164	switch (value)
5165	{
5166	case SVGA3D_TEX_TRANSFORM_OFF:
5167	return D3DTTFF_DISABLE;
5168	case SVGA3D_TEX_TRANSFORM_S:
5169	return D3DTTFF_COUNT1; /* @todo correct? */
5170	case SVGA3D_TEX_TRANSFORM_T:
5171	return D3DTTFF_COUNT2; /* @todo correct? */
5172	case SVGA3D_TEX_TRANSFORM_R:
5173	return D3DTTFF_COUNT3; /* @todo correct? */
5174	case SVGA3D_TEX_TRANSFORM_Q:
5175	return D3DTTFF_COUNT4; /* @todo correct? */
5176	case SVGA3D_TEX_PROJECTED:
5177	return D3DTTFF_PROJECTED;
5178	default:
5179	AssertFailed();
5180	return 0;
5181	}
5182	}
5183	#endif
5184
5185	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
5186	{
5187	switch (value)
5188	{
5189	case SVGA3D_TEX_ADDRESS_WRAP:
5190	return GL_REPEAT;
5191	case SVGA3D_TEX_ADDRESS_MIRROR:
5192	return GL_MIRRORED_REPEAT;
5193	case SVGA3D_TEX_ADDRESS_CLAMP:
5194	return GL_CLAMP_TO_EDGE;
5195	case SVGA3D_TEX_ADDRESS_BORDER:
5196	return GL_CLAMP_TO_BORDER;
5197	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
5198	AssertFailed();
5199	return GL_CLAMP_TO_EDGE_SGIS; /* @todo correct? */
5200
5201	case SVGA3D_TEX_ADDRESS_EDGE:
5202	case SVGA3D_TEX_ADDRESS_INVALID:
5203	default:
5204	AssertFailed();
5205	return GL_REPEAT; /* default */
5206	}
5207	}
5208
5209	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
5210	{
5211	switch (value)
5212	{
5213	case SVGA3D_TEX_FILTER_NONE:
5214	case SVGA3D_TEX_FILTER_LINEAR:
5215	return GL_LINEAR;
5216	case SVGA3D_TEX_FILTER_NEAREST:
5217	return GL_NEAREST;
5218	case SVGA3D_TEX_FILTER_ANISOTROPIC:
5219	/* @todo */
5220	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
5221	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
5222	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
5223	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
5224	default:
5225	AssertFailed();
5226	return GL_LINEAR; /* default */
5227	}
5228	}
5229
5230	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
5231	{
5232	/* flip the red and blue bytes */
5233	uint8_t blue = value & 0xff;
5234	uint8_t red = (value >> 16) & 0xff;
5235	return (value & 0xff00ff00) \| red \| (blue << 16);
5236	}
5237
5238	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
5239	{
5240	GLenum val;
5241	GLenum currentStage = ~0L;
5242	PVMSVGA3DCONTEXT pContext;
5243	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5244	AssertReturn(pState, VERR_NO_MEMORY);
5245
5246	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
5247
5248	if ( cid >= pState->cContexts
5249	\|\| pState->paContext[cid].id != cid)
5250	{
5251	Log(("vmsvga3dSetTextureState invalid context id!\n"));
5252	return VERR_INVALID_PARAMETER;
5253	}
5254	pContext = &pState->paContext[cid];
5255	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5256
5257	for (unsigned i = 0; i < cTextureStates; i++)
5258	{
5259	GLenum textureType = ~0U;
5260	GLenum samplerType = ~0U;
5261
5262	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));
5263	/* Record the texture state for vm state saving. */
5264	if ( pTextureState[i].stage < SVGA3D_MAX_TEXTURE_STAGE
5265	&& pTextureState[i].name < SVGA3D_TS_MAX)
5266	{
5267	pContext->state.aTextureState[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
5268	}
5269
5270	/* Active the right texture unit for subsequent texture state changes. */
5271	if (pTextureState[i].stage != currentStage)
5272	{
5273	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
5274	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5275	currentStage = pTextureState[i].stage;
5276	}
5277
5278	switch (pTextureState[i].name)
5279	{
5280	case SVGA3D_TS_BUMPENVMAT00: /* float */
5281	case SVGA3D_TS_BUMPENVMAT01: /* float */
5282	case SVGA3D_TS_BUMPENVMAT10: /* float */
5283	case SVGA3D_TS_BUMPENVMAT11: /* float */
5284	case SVGA3D_TS_BUMPENVLSCALE: /* float */
5285	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
5286	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
5287	break;
5288
5289	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
5290	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
5291	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
5292	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
5293	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
5294	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
5295	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
5296	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
5297	/* @todo; not used by MesaGL */
5298	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
5299	break;
5300	#if 0
5301
5302	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
5303	textureType = D3DTSS_TEXCOORDINDEX;
5304	val = pTextureState[i].value;
5305	break;
5306
5307	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
5308	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
5309	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
5310	break;
5311	#endif
5312
5313	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
5314	if (pTextureState[i].value == SVGA3D_INVALID_ID)
5315	{
5316	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x\n", pTextureState[i].stage, pTextureState[i].value));
5317
5318	pContext->aSidActiveTexture[currentStage] = SVGA3D_INVALID_ID;
5319	/* Unselect the currently associated texture. */
5320	glBindTexture(GL_TEXTURE_2D, 0);
5321	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5322	/* Necessary for the fixed pipeline. */
5323	glDisable(GL_TEXTURE_2D);
5324	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5325	}
5326	else
5327	{
5328	uint32_t sid = pTextureState[i].value;
5329
5330	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5331	AssertReturn(sid < pState->cSurfaces && pState->paSurface[sid].id == sid, VERR_INVALID_PARAMETER);
5332
5333	PVMSVGA3DSURFACE pSurface = &pState->paSurface[sid];
5334
5335	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x (%d,%d)\n", pTextureState[i].stage, pTextureState[i].value, pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height));
5336
5337	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5338	{
5339	Assert(pSurface->idAssociatedContext == SVGA3D_INVALID_ID);
5340	Log(("CreateTexture (%d,%d) level=%d\n", pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height, pSurface->faces[0].numMipLevels));
5341	int rc = vmsvga3dCreateTexture(pState, pContext, cid, pSurface);
5342	AssertRCReturn(rc, rc);
5343	}
5344
5345	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
5346	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5347
5348	/* Necessary for the fixed pipeline. */
5349	glEnable(GL_TEXTURE_2D);
5350	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5351
5352	if (pContext->aSidActiveTexture[currentStage] != sid)
5353	{
5354	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5355	for (uint32_t iStage = 0; iStage < SVGA3D_MAX_TEXTURE_STAGE; iStage++)
5356	{
5357	for (uint32_t j = 0; j < SVGA3D_TS_MAX; j++)
5358	{
5359	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureState[iStage][j];
5360
5361	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5362	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5363	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
5364	}
5365	}
5366	}
5367	pContext->aSidActiveTexture[currentStage] = sid;
5368	}
5369	/* Finished; continue with the next one. */
5370	continue;
5371
5372	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5373	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5374	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5375	break;
5376
5377	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5378	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5379	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5380	break;
5381
5382	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5383	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5384	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5385	break;
5386
5387	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5388	//AssertFailed(); /* @todo */
5389	//samplerType = D3DSAMP_MIPFILTER;
5390	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5391	break;
5392
5393	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5394	textureType = GL_TEXTURE_MAG_FILTER;
5395	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5396	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5397	break;
5398
5399	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5400	textureType = GL_TEXTURE_MIN_FILTER;
5401	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5402	break;
5403
5404	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5405	{
5406	GLfloat color[4]; /* red, green, blue, alpha */
5407
5408	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5409
5410	glTexParameterfv(GL_TEXTURE_2D /* @todo flexible type /, GL_TEXTURE_BORDER_COLOR, color); / Identical; default 0.0 identical too */
5411	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5412	break;
5413	}
5414
5415	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5416	glTexParameterf(GL_TEXTURE_2D /* @todo flexible type /, GL_TEXTURE_LOD_BIAS, pTextureState[i].value); / Identical; default 0.0 identical too */
5417	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5418	break;
5419
5420	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5421	textureType = GL_TEXTURE_MAX_LEVEL;
5422	val = pTextureState[i].value; /* Identical?? */
5423	break;
5424
5425	#if 0
5426	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5427	samplerType = D3DSAMP_MAXANISOTROPY;
5428	val = pTextureState[i].value; /* Identical?? */
5429	break;
5430
5431	case SVGA3D_TS_GAMMA: /* float */
5432	samplerType = D3DSAMP_SRGBTEXTURE;
5433	/* Boolean in D3D */
5434	if (pTextureState[i].floatValue == 1.0f)
5435	val = FALSE;
5436	else
5437	val = TRUE;
5438	break;
5439	#endif
5440	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5441	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5442	AssertFailed();
5443	break;
5444
5445	default:
5446	//AssertFailed();
5447	break;
5448	}
5449
5450	if (textureType != ~0U)
5451	{
5452	glTexParameteri(GL_TEXTURE_2D /* @todo flexible type */, textureType, val);
5453	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5454	}
5455	}
5456
5457	return VINF_SUCCESS;
5458	}
5459
5460	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5461	{
5462	PVMSVGA3DCONTEXT pContext;
5463	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5464	AssertReturn(pState, VERR_NO_MEMORY);
5465	GLenum oglFace;
5466
5467	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
5468
5469	if ( cid >= pState->cContexts
5470	\|\| pState->paContext[cid].id != cid)
5471	{
5472	Log(("vmsvga3dSetMaterial invalid context id!\n"));
5473	return VERR_INVALID_PARAMETER;
5474	}
5475	pContext = &pState->paContext[cid];
5476	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5477
5478	switch (face)
5479	{
5480	case SVGA3D_FACE_NONE:
5481	case SVGA3D_FACE_FRONT:
5482	oglFace = GL_FRONT;
5483	break;
5484
5485	case SVGA3D_FACE_BACK:
5486	oglFace = GL_BACK;
5487	break;
5488
5489	case SVGA3D_FACE_FRONT_BACK:
5490	oglFace = GL_FRONT_AND_BACK;
5491	break;
5492
5493	default:
5494	AssertFailedReturn(VERR_INVALID_PARAMETER);
5495	}
5496
5497	/* Save for vm state save/restore. */
5498	pContext->state.aMaterial[face].fValid = true;
5499	pContext->state.aMaterial[face].material = *pMaterial;
5500	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5501
5502	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5503	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5504	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5505	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5506	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5507	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5508
5509	return VINF_SUCCESS;
5510	}
5511
5512	/* @todo Move into separate library as we are using logic from Wine here. */
5513	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5514	{
5515	PVMSVGA3DCONTEXT pContext;
5516	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5517	AssertReturn(pState, VERR_NO_MEMORY);
5518	float QuadAttenuation;
5519
5520	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5521
5522	if ( cid >= pState->cContexts
5523	\|\| pState->paContext[cid].id != cid)
5524	{
5525	Log(("vmsvga3dSetLightData invalid context id!\n"));
5526	return VERR_INVALID_PARAMETER;
5527	}
5528	pContext = &pState->paContext[cid];
5529	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5530
5531	/* Store for vm state save/restore */
5532	if (index < SVGA3D_MAX_LIGHTS)
5533	{
5534	pContext->state.aLightData[index].fValidData = true;
5535	pContext->state.aLightData[index].data = *pData;
5536	}
5537	else
5538	AssertFailed();
5539
5540	if ( pData->attenuation0 < 0.0f
5541	\|\| pData->attenuation1 < 0.0f
5542	\|\| pData->attenuation2 < 0.0f)
5543	{
5544	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5545	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5546	}
5547
5548	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5549	glMatrixMode(GL_MODELVIEW);
5550	glPushMatrix();
5551	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5552
5553	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5554	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5555	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5556
5557	if (pData->range * pData->range >= FLT_MIN)
5558	QuadAttenuation = 1.4f / (pData->range * pData->range);
5559	else
5560	QuadAttenuation = 0.0f;
5561
5562	switch (pData->type)
5563	{
5564	case SVGA3D_LIGHTTYPE_POINT:
5565	{
5566	GLfloat position[4];
5567
5568	position[0] = pData->position[0];
5569	position[1] = pData->position[1];
5570	position[2] = pData->position[2];
5571	position[3] = 1.0f;
5572
5573	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5574	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5575
5576	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5577	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5578
5579	/* Attenuation - Are these right? guessing... */
5580	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5581	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5582
5583	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5584	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5585
5586	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5587	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5588
5589	/* @todo range */
5590	break;
5591	}
5592
5593	case SVGA3D_LIGHTTYPE_SPOT1:
5594	{
5595	GLfloat exponent;
5596	GLfloat position[4];
5597	const GLfloat pi = 4.0f * atanf(1.0f);
5598
5599	position[0] = pData->position[0];
5600	position[1] = pData->position[1];
5601	position[2] = pData->position[2];
5602	position[3] = 1.0f;
5603
5604	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5605	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5606
5607	position[0] = pData->direction[0];
5608	position[1] = pData->direction[1];
5609	position[2] = pData->direction[2];
5610	position[3] = 1.0f;
5611
5612	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5613	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5614
5615	/*
5616	* opengl-ish and d3d-ish spot lights use too different models for the
5617	* light "intensity" as a function of the angle towards the main light direction,
5618	* so we only can approximate very roughly.
5619	* however spot lights are rather rarely used in games (if ever used at all).
5620	* furthermore if still used, probably nobody pays attention to such details.
5621	*/
5622	if (pData->falloff == 0)
5623	{
5624	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5625	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5626	* will always be 1.0 for both of them, and we don't have to care for the
5627	* rest of the rather complex calculation
5628	*/
5629	exponent = 0.0f;
5630	}
5631	else
5632	{
5633	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5634	if (rho < 0.0001f)
5635	rho = 0.0001f;
5636	exponent = -0.3f/log(cos(rho/2));
5637	}
5638	if (exponent > 128.0f)
5639	exponent = 128.0f;
5640
5641	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5642	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5643
5644	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5645	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5646
5647	/* Attenuation - Are these right? guessing... */
5648	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5649	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5650
5651	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5652	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5653
5654	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5655	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5656
5657	/* @todo range */
5658	break;
5659	}
5660
5661	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5662	{
5663	GLfloat position[4];
5664
5665	position[0] = -pData->direction[0];
5666	position[1] = -pData->direction[1];
5667	position[2] = -pData->direction[2];
5668	position[3] = 0.0f;
5669
5670	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5671	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5672
5673	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5674	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5675
5676	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5677	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5678	break;
5679	}
5680
5681	case SVGA3D_LIGHTTYPE_SPOT2:
5682	default:
5683	Log(("Unsupported light type!!\n"));
5684	return VERR_INVALID_PARAMETER;
5685	}
5686
5687	/* Restore the modelview matrix */
5688	glPopMatrix();
5689
5690	return VINF_SUCCESS;
5691	}
5692
5693	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5694	{
5695	PVMSVGA3DCONTEXT pContext;
5696	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5697	AssertReturn(pState, VERR_NO_MEMORY);
5698
5699	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
5700
5701	if ( cid >= pState->cContexts
5702	\|\| pState->paContext[cid].id != cid)
5703	{
5704	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
5705	return VERR_INVALID_PARAMETER;
5706	}
5707	pContext = &pState->paContext[cid];
5708	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5709
5710	/* Store for vm state save/restore */
5711	if (index < SVGA3D_MAX_LIGHTS)
5712	pContext->state.aLightData[index].fEnabled = !!enabled;
5713	else
5714	AssertFailed();
5715
5716	if (enabled)
5717	{
5718	/* Load the default settings if none have been set yet. */
5719	if (!pContext->state.aLightData[index].fValidData)
5720	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5721	glEnable(GL_LIGHT0 + index);
5722	}
5723	else
5724	glDisable(GL_LIGHT0 + index);
5725
5726	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5727	return VINF_SUCCESS;
5728	}
5729
5730	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5731	{
5732	PVMSVGA3DCONTEXT pContext;
5733	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5734	AssertReturn(pState, VERR_NO_MEMORY);
5735
5736	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5737
5738	if ( cid >= pState->cContexts
5739	\|\| pState->paContext[cid].id != cid)
5740	{
5741	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5742	return VERR_INVALID_PARAMETER;
5743	}
5744	pContext = &pState->paContext[cid];
5745	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5746
5747	/* Save for vm state save/restore. */
5748	pContext->state.RectViewPort = *pRect;
5749	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5750
5751	/* @todo y-inversion for partial viewport coordinates? */
5752	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5753	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5754
5755	/* Reset the projection matrix as that relies on the viewport setting. */
5756	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5757	{
5758	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5759	}
5760	else
5761	{
5762	float matrix[16];
5763
5764	/* identity matrix if no matrix set. */
5765	memset(matrix, 0, sizeof(matrix));
5766	matrix[0] = 1.0;
5767	matrix[5] = 1.0;
5768	matrix[10] = 1.0;
5769	matrix[15] = 1.0;
5770	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5771	}
5772
5773	return VINF_SUCCESS;
5774	}
5775
5776	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5777	{
5778	PVMSVGA3DCONTEXT pContext;
5779	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5780	AssertReturn(pState, VERR_NO_MEMORY);
5781	double oglPlane[4];
5782
5783	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)));
5784	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5785
5786	if ( cid >= pState->cContexts
5787	\|\| pState->paContext[cid].id != cid)
5788	{
5789	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5790	return VERR_INVALID_PARAMETER;
5791	}
5792	pContext = &pState->paContext[cid];
5793	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5794
5795	/* Store for vm state save/restore. */
5796	pContext->state.aClipPlane[index].fValid = true;
5797	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(plane));
5798
5799	/* @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5800	oglPlane[0] = (double)plane[0];
5801	oglPlane[1] = (double)plane[1];
5802	oglPlane[2] = (double)plane[2];
5803	oglPlane[3] = (double)plane[3];
5804
5805	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5806	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5807
5808	return VINF_SUCCESS;
5809	}
5810
5811	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5812	{
5813	PVMSVGA3DCONTEXT pContext;
5814	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5815	AssertReturn(pState, VERR_NO_MEMORY);
5816
5817	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5818
5819	if ( cid >= pState->cContexts
5820	\|\| pState->paContext[cid].id != cid)
5821	{
5822	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5823	return VERR_INVALID_PARAMETER;
5824	}
5825	pContext = &pState->paContext[cid];
5826	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5827
5828	/* Store for vm state save/restore. */
5829	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5830	pContext->state.RectScissor = *pRect;
5831
5832	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5833	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5834
5835	return VINF_SUCCESS;
5836	}
5837
5838	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5839	{
5840	/* Convert byte color components to float (0-1.0) */
5841	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5842	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5843	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5844	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5845	}
5846
5847	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil, uint32_t cRects, SVGA3dRect *pRect)
5848	{
5849	GLbitfield mask = 0;
5850	PVMSVGA3DCONTEXT pContext;
5851	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
5852	AssertReturn(pState, VERR_NO_MEMORY);
5853	GLboolean fDepthWriteEnabled = GL_FALSE;
5854
5855	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));
5856
5857	if ( cid >= pState->cContexts
5858	\|\| pState->paContext[cid].id != cid)
5859	{
5860	Log(("vmsvga3dCommandClear invalid context id!\n"));
5861	return VERR_INVALID_PARAMETER;
5862	}
5863	pContext = &pState->paContext[cid];
5864	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5865
5866	if (clearFlag & SVGA3D_CLEAR_COLOR)
5867	{
5868	GLfloat red, green, blue, alpha;
5869
5870	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5871
5872	/* Set the color clear value. */
5873	glClearColor(red, green, blue, alpha);
5874
5875	mask \|= GL_COLOR_BUFFER_BIT;
5876	}
5877	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5878	{
5879	/* @todo possibly the same problem as with glDepthMask */
5880	glClearStencil(stencil);
5881	mask \|= GL_STENCIL_BUFFER_BIT;
5882	}
5883	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5884	{
5885	glClearDepth((GLdouble)depth);
5886	mask \|= GL_DEPTH_BUFFER_BIT;
5887
5888	/* glClear will not clear the depth buffer if writing is disabled. */
5889	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5890	if (fDepthWriteEnabled == GL_FALSE)
5891	glDepthMask(GL_TRUE);
5892	}
5893
5894	if (cRects)
5895	{
5896	/* Save the current scissor test bit and scissor box. */
5897	glPushAttrib(GL_SCISSOR_BIT);
5898	glEnable(GL_SCISSOR_TEST);
5899	for (unsigned i=0; i < cRects; i++)
5900	{
5901	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));
5902	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5903	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5904	glClear(mask);
5905	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5906	}
5907	/* Restore the old scissor test bit and box */
5908	glPopAttrib();
5909	}
5910	else
5911	{
5912	glClear(mask);
5913	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5914	}
5915
5916	/* Restore depth write state. */
5917	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5918	&& fDepthWriteEnabled == GL_FALSE)
5919	glDepthMask(GL_FALSE);
5920
5921	return VINF_SUCCESS;
5922	}
5923
5924	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5925	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5926	{
5927	normalized = GL_FALSE;
5928	switch (identity.type)
5929	{
5930	case SVGA3D_DECLTYPE_FLOAT1:
5931	size = 1;
5932	type = GL_FLOAT;
5933	break;
5934	case SVGA3D_DECLTYPE_FLOAT2:
5935	size = 2;
5936	type = GL_FLOAT;
5937	break;
5938	case SVGA3D_DECLTYPE_FLOAT3:
5939	size = 3;
5940	type = GL_FLOAT;
5941	break;
5942	case SVGA3D_DECLTYPE_FLOAT4:
5943	size = 4;
5944	type = GL_FLOAT;
5945	break;
5946
5947	case SVGA3D_DECLTYPE_D3DCOLOR:
5948	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5949	type = GL_UNSIGNED_BYTE;
5950	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5951	break;
5952
5953	case SVGA3D_DECLTYPE_UBYTE4N:
5954	normalized = GL_TRUE;
5955	/* no break */
5956	case SVGA3D_DECLTYPE_UBYTE4:
5957	size = 4;
5958	type = GL_UNSIGNED_BYTE;
5959	break;
5960
5961	case SVGA3D_DECLTYPE_SHORT2N:
5962	normalized = GL_TRUE;
5963	/* no break */
5964	case SVGA3D_DECLTYPE_SHORT2:
5965	size = 2;
5966	type = GL_SHORT;
5967	break;
5968
5969	case SVGA3D_DECLTYPE_SHORT4N:
5970	normalized = GL_TRUE;
5971	/* no break */
5972	case SVGA3D_DECLTYPE_SHORT4:
5973	size = 4;
5974	type = GL_SHORT;
5975	break;
5976
5977	case SVGA3D_DECLTYPE_USHORT4N:
5978	normalized = GL_TRUE;
5979	size = 4;
5980	type = GL_UNSIGNED_SHORT;
5981	break;
5982
5983	case SVGA3D_DECLTYPE_USHORT2N:
5984	normalized = GL_TRUE;
5985	size = 2;
5986	type = GL_UNSIGNED_SHORT;
5987	break;
5988
5989	case SVGA3D_DECLTYPE_UDEC3:
5990	size = 3;
5991	type = GL_UNSIGNED_INT_2_10_10_10_REV; /* @todo correct? */
5992	break;
5993
5994	case SVGA3D_DECLTYPE_DEC3N:
5995	normalized = true;
5996	size = 3;
5997	type = GL_INT_2_10_10_10_REV; /* @todo correct? */
5998	break;
5999
6000	case SVGA3D_DECLTYPE_FLOAT16_2:
6001	size = 2;
6002	type = GL_HALF_FLOAT;
6003	break;
6004	case SVGA3D_DECLTYPE_FLOAT16_4:
6005	size = 4;
6006	type = GL_HALF_FLOAT;
6007	break;
6008	default:
6009	AssertFailedReturn(VERR_INVALID_PARAMETER);
6010	}
6011
6012	//pVertexElement->Method = identity.method;
6013	//pVertexElement->Usage = identity.usage;
6014
6015	return VINF_SUCCESS;
6016	}
6017
6018	/* Convert VMWare primitive type to its OpenGL equivalent. */
6019	/* Calculate the vertex count based on the primitive type and nr of primitives. */
6020	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
6021	{
6022	switch (PrimitiveType)
6023	{
6024	case SVGA3D_PRIMITIVE_TRIANGLELIST:
6025	*pMode = GL_TRIANGLES;
6026	pcVertices = cPrimitiveCount 3;
6027	break;
6028	case SVGA3D_PRIMITIVE_POINTLIST:
6029	*pMode = GL_POINTS;
6030	*pcVertices = cPrimitiveCount;
6031	break;
6032	case SVGA3D_PRIMITIVE_LINELIST:
6033	*pMode = GL_LINES;
6034	pcVertices = cPrimitiveCount 2;
6035	break;
6036	case SVGA3D_PRIMITIVE_LINESTRIP:
6037	*pMode = GL_LINE_STRIP;
6038	*pcVertices = cPrimitiveCount + 1;
6039	break;
6040	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
6041	*pMode = GL_TRIANGLE_STRIP;
6042	*pcVertices = cPrimitiveCount + 2;
6043	break;
6044	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
6045	*pMode = GL_TRIANGLE_FAN;
6046	*pcVertices = cPrimitiveCount + 2;
6047	break;
6048	default:
6049	return VERR_INVALID_PARAMETER;
6050	}
6051	return VINF_SUCCESS;
6052	}
6053
6054	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6055	{
6056	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
6057	PVMSVGA3DSURFACE pVertexSurface;
6058
6059	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
6060	AssertReturn(sidVertex < pState->cSurfaces && pState->paSurface[sidVertex].id == sidVertex, VERR_INVALID_PARAMETER);
6061
6062	pVertexSurface = &pState->paSurface[sidVertex];
6063	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
6064
6065	/* Create and/or bind the vertex buffer. */
6066	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
6067	{
6068	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
6069	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
6070	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6071
6072	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
6073	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6074
6075	Assert(pVertexSurface->fDirty);
6076	/* @todo rethink usage dynamic/static */
6077	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6078	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6079
6080	pVertexSurface->pMipmapLevels[0].fDirty = false;
6081	pVertexSurface->fDirty = false;
6082
6083	pVertexSurface->flags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
6084	}
6085	else
6086	{
6087	Assert(pVertexSurface->fDirty == false);
6088	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
6089	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6090	}
6091	pVertexSurface->idAssociatedContext = pContext->id;
6092
6093	/* Setup the vertex declarations. */
6094	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6095	{
6096	GLint size;
6097	GLenum type;
6098	GLboolean normalized;
6099	GLuint index = iVertexDeclBase + iVertex;
6100
6101	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));
6102
6103	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
6104	AssertRCReturn(rc, rc);
6105
6106	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6107	{
6108	/* Use numbered vertex arrays when shaders are active. */
6109	pState->ext.glEnableVertexAttribArray(index);
6110	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6111	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride, (const GLvoid *)pVertexDecl[iVertex].array.offset);
6112	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6113	/* case SVGA3D_DECLUSAGE_COLOR: @todo color component order not identical!! test GL_BGRA!! */
6114	}
6115	else
6116	{
6117	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6118	switch (pVertexDecl[iVertex].identity.usage)
6119	{
6120	case SVGA3D_DECLUSAGE_POSITION:
6121	glEnableClientState(GL_VERTEX_ARRAY);
6122	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6123	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride, (const GLvoid *)pVertexDecl[iVertex].array.offset);
6124	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6125	break;
6126	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6127	AssertFailed();
6128	break;
6129	case SVGA3D_DECLUSAGE_BLENDINDICES:
6130	AssertFailed();
6131	break;
6132	case SVGA3D_DECLUSAGE_NORMAL:
6133	glEnableClientState(GL_NORMAL_ARRAY);
6134	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6135	glNormalPointer(type, pVertexDecl[iVertex].array.stride, (const GLvoid *)pVertexDecl[iVertex].array.offset);
6136	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6137	break;
6138	case SVGA3D_DECLUSAGE_PSIZE:
6139	AssertFailed();
6140	break;
6141	case SVGA3D_DECLUSAGE_TEXCOORD:
6142	/* Specify the affected texture unit. */
6143	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6144	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
6145	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6146	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride, (const GLvoid *)pVertexDecl[iVertex].array.offset);
6147	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6148	break;
6149	case SVGA3D_DECLUSAGE_TANGENT:
6150	AssertFailed();
6151	break;
6152	case SVGA3D_DECLUSAGE_BINORMAL:
6153	AssertFailed();
6154	break;
6155	case SVGA3D_DECLUSAGE_TESSFACTOR:
6156	AssertFailed();
6157	break;
6158	case SVGA3D_DECLUSAGE_POSITIONT:
6159	AssertFailed(); /* see position_transformed in Wine */
6160	break;
6161	case SVGA3D_DECLUSAGE_COLOR: /* @todo color component order not identical!! test GL_BGRA!! */
6162	glEnableClientState(GL_COLOR_ARRAY);
6163	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6164	glColorPointer(size, type, pVertexDecl[iVertex].array.stride, (const GLvoid *)pVertexDecl[iVertex].array.offset);
6165	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6166	break;
6167	case SVGA3D_DECLUSAGE_FOG:
6168	glEnableClientState(GL_FOG_COORD_ARRAY);
6169	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6170	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride, (const GLvoid *)pVertexDecl[iVertex].array.offset);
6171	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6172	break;
6173	case SVGA3D_DECLUSAGE_DEPTH:
6174	AssertFailed();
6175	break;
6176	case SVGA3D_DECLUSAGE_SAMPLE:
6177	AssertFailed();
6178	break;
6179	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6180	}
6181	}
6182
6183	#ifdef LOG_ENABLED
6184	if (pVertexDecl[iVertex].array.stride == 0)
6185	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
6186	#endif
6187	}
6188
6189	return VINF_SUCCESS;
6190	}
6191
6192	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6193	{
6194	/* Setup the vertex declarations. */
6195	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6196	{
6197	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6198	{
6199	/* Use numbered vertex arrays when shaders are active. */
6200	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
6201	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6202	}
6203	else
6204	{
6205	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6206	switch (pVertexDecl[iVertex].identity.usage)
6207	{
6208	case SVGA3D_DECLUSAGE_POSITION:
6209	glDisableClientState(GL_VERTEX_ARRAY);
6210	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6211	break;
6212	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6213	break;
6214	case SVGA3D_DECLUSAGE_BLENDINDICES:
6215	break;
6216	case SVGA3D_DECLUSAGE_NORMAL:
6217	glDisableClientState(GL_NORMAL_ARRAY);
6218	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6219	break;
6220	case SVGA3D_DECLUSAGE_PSIZE:
6221	break;
6222	case SVGA3D_DECLUSAGE_TEXCOORD:
6223	/* Specify the affected texture unit. */
6224	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6225	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
6226	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6227	break;
6228	case SVGA3D_DECLUSAGE_TANGENT:
6229	break;
6230	case SVGA3D_DECLUSAGE_BINORMAL:
6231	break;
6232	case SVGA3D_DECLUSAGE_TESSFACTOR:
6233	break;
6234	case SVGA3D_DECLUSAGE_POSITIONT:
6235	break;
6236	case SVGA3D_DECLUSAGE_COLOR: /* @todo color component order not identical!! */
6237	glDisableClientState(GL_COLOR_ARRAY);
6238	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6239	break;
6240	case SVGA3D_DECLUSAGE_FOG:
6241	glDisableClientState(GL_FOG_COORD_ARRAY);
6242	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6243	break;
6244	case SVGA3D_DECLUSAGE_DEPTH:
6245	break;
6246	case SVGA3D_DECLUSAGE_SAMPLE:
6247	break;
6248	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6249	}
6250	}
6251	}
6252	/* Unbind the vertex buffer after usage. */
6253	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
6254	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6255	return VINF_SUCCESS;
6256	}
6257
6258	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl pVertexDecl, uint32_t numRanges, SVGA3dPrimitiveRange pRange, uint32_t cVertexDivisor, SVGA3dVertexDivisor *pVertexDivisor)
6259	{
6260	PVMSVGA3DCONTEXT pContext;
6261	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6262	AssertReturn(pState, VERR_INTERNAL_ERROR);
6263	int rc = VERR_NOT_IMPLEMENTED;
6264	uint32_t iCurrentVertex;
6265
6266	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
6267
6268	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
6269	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
6270	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
6271	/* @todo */
6272	Assert(!cVertexDivisor);
6273
6274	if ( cid >= pState->cContexts
6275	\|\| pState->paContext[cid].id != cid)
6276	{
6277	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
6278	return VERR_INVALID_PARAMETER;
6279	}
6280	pContext = &pState->paContext[cid];
6281	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6282
6283	/* Flush any shader changes. */
6284	if (pContext->pShaderContext)
6285	{
6286	uint32_t rtHeight = 0;
6287
6288	if (pContext->sidRenderTarget != SVGA_ID_INVALID)
6289	{
6290	PVMSVGA3DSURFACE pRenderTarget = &pState->paSurface[pContext->sidRenderTarget];
6291	rtHeight = pRenderTarget->pMipmapLevels[0].size.height;
6292	}
6293
6294	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6295	}
6296
6297	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6298	iCurrentVertex = 0;
6299	while (iCurrentVertex < numVertexDecls)
6300	{
6301	uint32_t sidVertex = SVGA_ID_INVALID;
6302	uint32_t iVertex;
6303
6304	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6305	{
6306	if ( sidVertex != SVGA_ID_INVALID
6307	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6308	)
6309	break;
6310	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6311	}
6312
6313	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pState, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6314	AssertRCReturn(rc, rc);
6315
6316	iCurrentVertex = iVertex;
6317	}
6318
6319	/* Now draw the primitives. */
6320	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6321	{
6322	GLenum modeDraw;
6323	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6324	PVMSVGA3DSURFACE pIndexSurface = NULL;
6325	unsigned cVertices;
6326
6327	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6328	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6329	if (RT_FAILURE(rc))
6330	{
6331	AssertRC(rc);
6332	goto internal_error;
6333	}
6334
6335	if (sidIndex != SVGA3D_INVALID_ID)
6336	{
6337	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6338
6339	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
6340	\|\| sidIndex >= pState->cSurfaces
6341	\|\| pState->paSurface[sidIndex].id != sidIndex)
6342	{
6343	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
6344	Assert(sidIndex < pState->cSurfaces && pState->paSurface[sidIndex].id == sidIndex);
6345	rc = VERR_INVALID_PARAMETER;
6346	goto internal_error;
6347	}
6348	pIndexSurface = &pState->paSurface[sidIndex];
6349	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6350
6351	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6352	{
6353	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6354
6355	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6356	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6357
6358	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6359	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6360
6361	Assert(pIndexSurface->fDirty);
6362
6363	/* @todo rethink usage dynamic/static */
6364	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6365	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6366
6367	pIndexSurface->pMipmapLevels[0].fDirty = false;
6368	pIndexSurface->fDirty = false;
6369
6370	pIndexSurface->flags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6371	}
6372	else
6373	{
6374	Assert(pIndexSurface->fDirty == false);
6375
6376	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6377	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6378	}
6379	pIndexSurface->idAssociatedContext = pContext->id;
6380	}
6381
6382	if (!pIndexSurface)
6383	{
6384	/* Render without an index buffer */
6385	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
6386	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6387	}
6388	else
6389	{
6390	Assert(pRange[iPrimitive].indexBias >= 0); /* @todo */
6391	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6392
6393	/* Render with an index buffer */
6394	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));
6395	if (pRange[iPrimitive].indexBias == 0)
6396	{
6397	glDrawElements(modeDraw,
6398	cVertices,
6399	(pRange[iPrimitive].indexWidth == sizeof(uint16_t)) ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
6400	(GLvoid )(pRange[iPrimitive].indexArray.offset)); / byte offset in indices buffer */
6401	}
6402	else
6403	pState->ext.glDrawElementsBaseVertex(modeDraw,
6404	cVertices,
6405	(pRange[iPrimitive].indexWidth == sizeof(uint16_t)) ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
6406	(GLvoid )(pRange[iPrimitive].indexArray.offset), / byte offset in indices buffer */
6407	pRange[iPrimitive].indexBias); /* basevertex */
6408
6409	/* Unbind the index buffer after usage. */
6410	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6411	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6412	}
6413	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6414	}
6415
6416	internal_error:
6417
6418	/* Deactivate the vertex declarations. */
6419	iCurrentVertex = 0;
6420	while (iCurrentVertex < numVertexDecls)
6421	{
6422	uint32_t sidVertex = SVGA_ID_INVALID;
6423	uint32_t iVertex;
6424
6425	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6426	{
6427	if ( sidVertex != SVGA_ID_INVALID
6428	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6429	)
6430	break;
6431	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6432	}
6433
6434	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pState, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6435	AssertRCReturn(rc, rc);
6436
6437	iCurrentVertex = iVertex;
6438	}
6439	#ifdef DEBUG
6440	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTexture); i++)
6441	{
6442	if (pContext->aSidActiveTexture[i] != SVGA3D_INVALID_ID)
6443	{
6444	GLint activeTexture = 0;
6445	GLint activeTextureUnit = 0;
6446
6447	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6448	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6449
6450	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
6451	pState->ext.glActiveTexture(activeTextureUnit);
6452
6453	if (pContext->aSidActiveTexture[activeTextureUnit - GL_TEXTURE0] != SVGA3D_INVALID_ID)
6454	{
6455	PVMSVGA3DSURFACE pTexture;
6456	pTexture = &pState->paSurface[pContext->aSidActiveTexture[activeTextureUnit - GL_TEXTURE0]];
6457
6458	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture, ("%x vs %x unit %d - %d\n", pTexture->oglId.texture, activeTexture, i, activeTextureUnit - GL_TEXTURE0));
6459	}
6460	}
6461	}
6462	#endif
6463
6464	#ifdef DEBUG_GFX_WINDOW
6465	if (pContext->aSidActiveTexture[0])
6466	{
6467	SVGA3dCopyRect rect;
6468
6469	rect.srcx = rect.srcy = rect.x = rect.y = 0;
6470	rect.w = 800;
6471	rect.h = 600;
6472	vmsvga3dCommandPresent(pThis, pContext->sidRenderTarget, 0, NULL);
6473	}
6474	#endif
6475	return rc;
6476	}
6477
6478
6479	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6480	{
6481	PVMSVGA3DCONTEXT pContext;
6482	PVMSVGA3DSHADER pShader;
6483	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6484	AssertReturn(pState, VERR_NO_MEMORY);
6485	int rc;
6486
6487	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6488	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6489
6490	if ( cid >= pState->cContexts
6491	\|\| pState->paContext[cid].id != cid)
6492	{
6493	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6494	return VERR_INVALID_PARAMETER;
6495	}
6496	pContext = &pState->paContext[cid];
6497	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6498
6499	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6500	if (type == SVGA3D_SHADERTYPE_VS)
6501	{
6502	if (shid >= pContext->cVertexShaders)
6503	{
6504	pContext->paVertexShader = (PVMSVGA3DSHADER)RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) * (shid + 1));
6505	AssertReturn(pContext->paVertexShader, VERR_NO_MEMORY);
6506	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6507	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6508	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6509	pContext->cVertexShaders = shid + 1;
6510	}
6511	/* If one already exists with this id, then destroy it now. */
6512	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6513	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6514
6515	pShader = &pContext->paVertexShader[shid];
6516	}
6517	else
6518	{
6519	Assert(type == SVGA3D_SHADERTYPE_PS);
6520	if (shid >= pContext->cPixelShaders)
6521	{
6522	pContext->paPixelShader = (PVMSVGA3DSHADER)RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) * (shid + 1));
6523	AssertReturn(pContext->paPixelShader, VERR_NO_MEMORY);
6524	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6525	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6526	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6527	pContext->cPixelShaders = shid + 1;
6528	}
6529	/* If one already exists with this id, then destroy it now. */
6530	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6531	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6532
6533	pShader = &pContext->paPixelShader[shid];
6534	}
6535
6536	memset(pShader, 0, sizeof(*pShader));
6537	pShader->id = shid;
6538	pShader->cid = cid;
6539	pShader->type = type;
6540	pShader->cbData = cbData;
6541	pShader->pShaderProgram = RTMemAllocZ(cbData);
6542	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6543	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6544
6545	switch (type)
6546	{
6547	case SVGA3D_SHADERTYPE_VS:
6548	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6549	break;
6550
6551	case SVGA3D_SHADERTYPE_PS:
6552	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6553	break;
6554
6555	default:
6556	AssertFailedReturn(VERR_INVALID_PARAMETER);
6557	}
6558
6559	return rc;
6560	}
6561
6562	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6563	{
6564	PVMSVGA3DCONTEXT pContext;
6565	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6566	AssertReturn(pState, VERR_NO_MEMORY);
6567	PVMSVGA3DSHADER pShader = NULL;
6568	int rc;
6569
6570	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6571
6572	if ( cid >= pState->cContexts
6573	\|\| pState->paContext[cid].id != cid)
6574	{
6575	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6576	return VERR_INVALID_PARAMETER;
6577	}
6578	pContext = &pState->paContext[cid];
6579	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6580
6581	if (type == SVGA3D_SHADERTYPE_VS)
6582	{
6583	if ( shid < pContext->cVertexShaders
6584	&& pContext->paVertexShader[shid].id == shid)
6585	{
6586	pShader = &pContext->paVertexShader[shid];
6587	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6588	AssertRC(rc);
6589	}
6590	}
6591	else
6592	{
6593	Assert(type == SVGA3D_SHADERTYPE_PS);
6594	if ( shid < pContext->cPixelShaders
6595	&& pContext->paPixelShader[shid].id == shid)
6596	{
6597	pShader = &pContext->paPixelShader[shid];
6598	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6599	AssertRC(rc);
6600	}
6601	}
6602
6603	if (pShader)
6604	{
6605	if (pShader->pShaderProgram)
6606	RTMemFree(pShader->pShaderProgram);
6607	memset(pShader, 0, sizeof(*pShader));
6608	pShader->id = SVGA3D_INVALID_ID;
6609	}
6610	else
6611	AssertFailedReturn(VERR_INVALID_PARAMETER);
6612
6613	return VINF_SUCCESS;
6614	}
6615
6616	int vmsvga3dShaderSet(PVGASTATE pThis, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6617	{
6618	PVMSVGA3DCONTEXT pContext;
6619	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6620	AssertReturn(pState, VERR_NO_MEMORY);
6621	int rc;
6622
6623	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6624
6625	if ( cid >= pState->cContexts
6626	\|\| pState->paContext[cid].id != cid)
6627	{
6628	Log(("vmsvga3dShaderSet invalid context id!\n"));
6629	return VERR_INVALID_PARAMETER;
6630	}
6631	pContext = &pState->paContext[cid];
6632	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6633
6634	if (type == SVGA3D_SHADERTYPE_VS)
6635	{
6636	/* Save for vm state save/restore. */
6637	pContext->state.shidVertex = shid;
6638	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6639
6640	if ( shid < pContext->cVertexShaders
6641	&& pContext->paVertexShader[shid].id == shid)
6642	{
6643	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6644	Assert(type == pShader->type);
6645
6646	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6647	AssertRCReturn(rc, rc);
6648	}
6649	else
6650	if (shid == SVGA_ID_INVALID)
6651	{
6652	/* Unselect shader. */
6653	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6654	AssertRCReturn(rc, rc);
6655	}
6656	else
6657	AssertFailedReturn(VERR_INVALID_PARAMETER);
6658	}
6659	else
6660	{
6661	/* Save for vm state save/restore. */
6662	pContext->state.shidPixel = shid;
6663	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6664
6665	Assert(type == SVGA3D_SHADERTYPE_PS);
6666	if ( shid < pContext->cPixelShaders
6667	&& pContext->paPixelShader[shid].id == shid)
6668	{
6669	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6670	Assert(type == pShader->type);
6671
6672	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6673	AssertRCReturn(rc, rc);
6674	}
6675	else
6676	if (shid == SVGA_ID_INVALID)
6677	{
6678	/* Unselect shader. */
6679	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6680	AssertRCReturn(rc, rc);
6681	}
6682	else
6683	AssertFailedReturn(VERR_INVALID_PARAMETER);
6684	}
6685
6686	return VINF_SUCCESS;
6687	}
6688
6689	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6690	{
6691	PVMSVGA3DCONTEXT pContext;
6692	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pThis->svga.p3dState;
6693	AssertReturn(pState, VERR_NO_MEMORY);
6694	int rc;
6695
6696	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6697
6698	if ( cid >= pState->cContexts
6699	\|\| pState->paContext[cid].id != cid)
6700	{
6701	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6702	return VERR_INVALID_PARAMETER;
6703	}
6704	pContext = &pState->paContext[cid];
6705	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6706
6707	for (uint32_t i = 0; i < cRegisters; i++)
6708	{
6709	#ifdef LOG_ENABLED
6710	switch (ctype)
6711	{
6712	case SVGA3D_CONST_TYPE_FLOAT:
6713	{
6714	float pValuesF = (float )pValues;
6715	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)));
6716	break;
6717	}
6718
6719	case SVGA3D_CONST_TYPE_INT:
6720	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6721	break;
6722
6723	case SVGA3D_CONST_TYPE_BOOL:
6724	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6725	break;
6726	}
6727	#endif
6728	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6729	}
6730
6731	switch (type)
6732	{
6733	case SVGA3D_SHADERTYPE_VS:
6734	switch (ctype)
6735	{
6736	case SVGA3D_CONST_TYPE_FLOAT:
6737	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6738	break;
6739
6740	case SVGA3D_CONST_TYPE_INT:
6741	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6742	break;
6743
6744	case SVGA3D_CONST_TYPE_BOOL:
6745	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6746	break;
6747
6748	default:
6749	AssertFailedReturn(VERR_INVALID_PARAMETER);
6750	}
6751	AssertRCReturn(rc, rc);
6752	break;
6753
6754	case SVGA3D_SHADERTYPE_PS:
6755	switch (ctype)
6756	{
6757	case SVGA3D_CONST_TYPE_FLOAT:
6758	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6759	break;
6760
6761	case SVGA3D_CONST_TYPE_INT:
6762	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6763	break;
6764
6765	case SVGA3D_CONST_TYPE_BOOL:
6766	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6767	break;
6768
6769	default:
6770	AssertFailedReturn(VERR_INVALID_PARAMETER);
6771	}
6772	AssertRCReturn(rc, rc);
6773	break;
6774
6775	default:
6776	AssertFailedReturn(VERR_INVALID_PARAMETER);
6777	}
6778
6779	return VINF_SUCCESS;
6780	}
6781
6782
6783	int vmsvga3dQueryBegin(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type)
6784	{
6785	AssertFailed();
6786	return VERR_NOT_IMPLEMENTED;
6787	}
6788
6789	int vmsvga3dQueryEnd(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
6790	{
6791	AssertFailed();
6792	return VERR_NOT_IMPLEMENTED;
6793	}
6794
6795	int vmsvga3dQueryWait(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
6796	{
6797	AssertFailed();
6798	return VERR_NOT_IMPLEMENTED;
6799	}
6800

Note: See TracBrowser for help on using the repository browser.

source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 53775

Download in other formats: