DevVGA-SVGA3d.cpp@ 86024

Last change on this file since 86024 was 86024, checked in by vboxsync, 4 years ago
Devices/Graphics: use current VMSVGA headers
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1	/* $Id: DevVGA-SVGA3d.cpp 86024 2020-09-03 14:37:31Z vboxsync $ */
2	/** @file
3	* DevSVGA3d - VMWare SVGA device, 3D parts - Common core code.
4	*/
5
6	/*
7	* Copyright (C) 2013-2020 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 <iprt/errcore.h>
25	#include <VBox/log.h>
26
27	#include <iprt/assert.h>
28	#include <iprt/mem.h>
29
30	#include <VBox/vmm/pgm.h> /* required by DevVGA.h */
31	#include <VBoxVideo.h> /* required by DevVGA.h */
32
33	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
34	#include "DevVGA.h"
35
36	#include "DevVGA-SVGA.h"
37	#include "DevVGA-SVGA3d.h"
38	#define VMSVGA3D_INCL_STRUCTURE_DESCRIPTORS
39	#include "DevVGA-SVGA3d-internal.h"
40
41
42
43	/**
44	* Implements the SVGA_3D_CMD_SURFACE_DEFINE_V2 and SVGA_3D_CMD_SURFACE_DEFINE
45	* commands (fifo).
46	*
47	* @returns VBox status code (currently ignored).
48	* @param pThisCC The VGA/VMSVGA state for ring-3.
49	* @param sid The ID of the surface to (re-)define.
50	* @param surfaceFlags .
51	* @param format .
52	* @param face .
53	* @param multisampleCount .
54	* @param autogenFilter .
55	* @param cMipLevels .
56	* @param paMipLevelSizes .
57	*/
58	int vmsvga3dSurfaceDefine(PVGASTATECC pThisCC, uint32_t sid, uint32_t surfaceFlags, SVGA3dSurfaceFormat format,
59	SVGA3dSurfaceFace face[SVGA3D_MAX_SURFACE_FACES], uint32_t multisampleCount,
60	SVGA3dTextureFilter autogenFilter, uint32_t cMipLevels, SVGA3dSize *paMipLevelSizes)
61	{
62	PVMSVGA3DSURFACE pSurface;
63	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
64	AssertReturn(pState, VERR_NO_MEMORY);
65
66	Log(("vmsvga3dSurfaceDefine: sid=%u surfaceFlags=%x format=%s (%x) multiSampleCount=%d autogenFilter=%d, cMipLevels=%d size=(%d,%d,%d)\n",
67	sid, surfaceFlags, vmsvgaLookupEnum((int)format, &g_SVGA3dSurfaceFormat2String), format, multisampleCount, autogenFilter,
68	cMipLevels, paMipLevelSizes->width, paMipLevelSizes->height, paMipLevelSizes->depth));
69
70	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
71	AssertReturn(cMipLevels >= 1, VERR_INVALID_PARAMETER);
72
73	/* Number of faces (cFaces) is specified as the number of the first non-zero elements in the 'face' array.
74	* Since only plain surfaces (cFaces == 1) and cubemaps (cFaces == 6) are supported
75	* (see also SVGA3dCmdDefineSurface definition in svga3d_reg.h), we ignore anything else.
76	*/
77	uint32_t cRemainingMipLevels = cMipLevels;
78	uint32_t cFaces = 0;
79	for (uint32_t i = 0; i < SVGA3D_MAX_SURFACE_FACES; ++i)
80	{
81	if (face[i].numMipLevels == 0)
82	break;
83
84	/* All SVGA3dSurfaceFace structures must have the same value of numMipLevels field */
85	AssertReturn(face[i].numMipLevels == face[0].numMipLevels, VERR_INVALID_PARAMETER);
86
87	/* numMipLevels value can't be greater than the number of remaining elements in the paMipLevelSizes array. */
88	AssertReturn(face[i].numMipLevels <= cRemainingMipLevels, VERR_INVALID_PARAMETER);
89	cRemainingMipLevels -= face[i].numMipLevels;
90
91	++cFaces;
92	}
93	for (uint32_t i = cFaces; i < SVGA3D_MAX_SURFACE_FACES; ++i)
94	AssertReturn(face[i].numMipLevels == 0, VERR_INVALID_PARAMETER);
95
96	/* cFaces must be 6 for a cubemap and 1 otherwise. */
97	AssertReturn(cFaces == (uint32_t)((surfaceFlags & SVGA3D_SURFACE_CUBEMAP) ? 6 : 1), VERR_INVALID_PARAMETER);
98
99	/* Sum of face[i].numMipLevels must be equal to cMipLevels. */
100	AssertReturn(cRemainingMipLevels == 0, VERR_INVALID_PARAMETER);
101
102	if (sid >= pState->cSurfaces)
103	{
104	/* Grow the array. */
105	uint32_t cNew = RT_ALIGN(sid + 15, 16);
106	void pvNew = RTMemRealloc(pState->papSurfaces, sizeof(pState->papSurfaces[0]) cNew);
107	AssertReturn(pvNew, VERR_NO_MEMORY);
108	pState->papSurfaces = (PVMSVGA3DSURFACE *)pvNew;
109	while (pState->cSurfaces < cNew)
110	{
111	pSurface = (PVMSVGA3DSURFACE)RTMemAllocZ(sizeof(*pSurface));
112	AssertReturn(pSurface, VERR_NO_MEMORY);
113	pSurface->id = SVGA3D_INVALID_ID;
114	pState->papSurfaces[pState->cSurfaces++] = pSurface;
115	}
116	}
117	pSurface = pState->papSurfaces[sid];
118
119	/* If one already exists with this id, then destroy it now. */
120	if (pSurface->id != SVGA3D_INVALID_ID)
121	vmsvga3dSurfaceDestroy(pThisCC, sid);
122
123	RT_ZERO(*pSurface);
124	pSurface->id = sid;
125	#ifdef VMSVGA3D_OPENGL
126	pSurface->idWeakContextAssociation = SVGA3D_INVALID_ID;
127	pSurface->oglId.buffer = OPENGL_INVALID_ID;
128	#else /* VMSVGA3D_DIRECT3D */
129	pSurface->idAssociatedContext = SVGA3D_INVALID_ID;
130	pSurface->hSharedObject = NULL;
131	pSurface->pSharedObjectTree = NULL;
132	#endif
133
134	/* The surface type is sort of undefined now, even though the hints and format can help to clear that up.
135	* In some case we'll have to wait until the surface is used to create the D3D object.
136	*/
137	switch (format)
138	{
139	case SVGA3D_Z_D32:
140	case SVGA3D_Z_D16:
141	case SVGA3D_Z_D24S8:
142	case SVGA3D_Z_D15S1:
143	case SVGA3D_Z_D24X8:
144	case SVGA3D_Z_DF16:
145	case SVGA3D_Z_DF24:
146	case SVGA3D_Z_D24S8_INT:
147	surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
148	break;
149
150	/* Texture compression formats */
151	case SVGA3D_DXT1:
152	case SVGA3D_DXT2:
153	case SVGA3D_DXT3:
154	case SVGA3D_DXT4:
155	case SVGA3D_DXT5:
156	/* Bump-map formats */
157	case SVGA3D_BUMPU8V8:
158	case SVGA3D_BUMPL6V5U5:
159	case SVGA3D_BUMPX8L8V8U8:
160	case SVGA3D_V8U8:
161	case SVGA3D_Q8W8V8U8:
162	case SVGA3D_CxV8U8:
163	case SVGA3D_X8L8V8U8:
164	case SVGA3D_A2W10V10U10:
165	case SVGA3D_V16U16:
166	/* Typical render target formats; we should allow render target buffers to be used as textures. */
167	case SVGA3D_X8R8G8B8:
168	case SVGA3D_A8R8G8B8:
169	case SVGA3D_R5G6B5:
170	case SVGA3D_X1R5G5B5:
171	case SVGA3D_A1R5G5B5:
172	case SVGA3D_A4R4G4B4:
173	surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
174	break;
175
176	case SVGA3D_LUMINANCE8:
177	case SVGA3D_LUMINANCE4_ALPHA4:
178	case SVGA3D_LUMINANCE16:
179	case SVGA3D_LUMINANCE8_ALPHA8:
180	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB */
181	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB */
182	case SVGA3D_A2R10G10B10:
183	case SVGA3D_ALPHA8:
184	case SVGA3D_R_S10E5:
185	case SVGA3D_R_S23E8:
186	case SVGA3D_RG_S10E5:
187	case SVGA3D_RG_S23E8:
188	case SVGA3D_G16R16:
189	case SVGA3D_A16B16G16R16:
190	case SVGA3D_UYVY:
191	case SVGA3D_YUY2:
192	case SVGA3D_NV12:
193	case SVGA3D_AYUV:
194	case SVGA3D_ATI1:
195	case SVGA3D_ATI2:
196	break;
197
198	/*
199	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
200	* the most efficient format to use when creating new surfaces
201	* expressly for index or vertex data.
202	*/
203	case SVGA3D_BUFFER:
204	break;
205
206	default:
207	break;
208	}
209
210	pSurface->surfaceFlags = surfaceFlags;
211	pSurface->format = format;
212	memcpy(pSurface->faces, face, sizeof(pSurface->faces));
213	pSurface->cFaces = cFaces;
214	pSurface->multiSampleCount = multisampleCount;
215	pSurface->autogenFilter = autogenFilter;
216	Assert(autogenFilter != SVGA3D_TEX_FILTER_FLATCUBIC);
217	Assert(autogenFilter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
218	pSurface->cMipmapLevels = cMipLevels;
219	pSurface->paMipmapLevels = (PVMSVGA3DMIPMAPLEVEL)RTMemAllocZ(cMipLevels * sizeof(VMSVGA3DMIPMAPLEVEL));
220	AssertReturn(pSurface->paMipmapLevels, VERR_NO_MEMORY);
221
222	for (uint32_t i=0; i < cMipLevels; i++)
223	pSurface->paMipmapLevels[i].mipmapSize = paMipLevelSizes[i];
224
225	pSurface->cbBlock = vmsvga3dSurfaceFormatSize(format, &pSurface->cxBlock, &pSurface->cyBlock);
226	AssertReturn(pSurface->cbBlock, VERR_INVALID_PARAMETER);
227
228	#ifdef VMSVGA3D_DIRECT3D
229	/* Translate the format and usage flags to D3D. */
230	pSurface->d3dfmtRequested = vmsvga3dSurfaceFormat2D3D(format);
231	pSurface->formatD3D = D3D9GetActualFormat(pState, pSurface->d3dfmtRequested);
232	pSurface->multiSampleTypeD3D= vmsvga3dMultipeSampleCount2D3D(multisampleCount);
233	pSurface->fUsageD3D = 0;
234	if (surfaceFlags & SVGA3D_SURFACE_HINT_DYNAMIC)
235	pSurface->fUsageD3D \|= D3DUSAGE_DYNAMIC;
236	if (surfaceFlags & SVGA3D_SURFACE_HINT_RENDERTARGET)
237	pSurface->fUsageD3D \|= D3DUSAGE_RENDERTARGET;
238	if (surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL)
239	pSurface->fUsageD3D \|= D3DUSAGE_DEPTHSTENCIL;
240	if (surfaceFlags & SVGA3D_SURFACE_HINT_WRITEONLY)
241	pSurface->fUsageD3D \|= D3DUSAGE_WRITEONLY;
242	if (surfaceFlags & SVGA3D_SURFACE_AUTOGENMIPMAPS)
243	pSurface->fUsageD3D \|= D3DUSAGE_AUTOGENMIPMAP;
244	pSurface->enmD3DResType = VMSVGA3D_D3DRESTYPE_NONE;
245	/* pSurface->u.pSurface = NULL; */
246	/* pSurface->bounce.pTexture = NULL; */
247	/* pSurface->emulated.pTexture = NULL; */
248	#else
249	/* pSurface->fEmulated = false; */
250	/* pSurface->idEmulated = OPENGL_INVALID_ID; */
251	vmsvga3dSurfaceFormat2OGL(pSurface, format);
252	#endif
253
254	LogFunc(("surface hint(s):%s%s%s%s%s%s\n",
255	(surfaceFlags & SVGA3D_SURFACE_HINT_INDEXBUFFER) ? " SVGA3D_SURFACE_HINT_INDEXBUFFER" : "",
256	(surfaceFlags & SVGA3D_SURFACE_HINT_VERTEXBUFFER) ? " SVGA3D_SURFACE_HINT_VERTEXBUFFER" : "",
257	(surfaceFlags & SVGA3D_SURFACE_HINT_TEXTURE) ? " SVGA3D_SURFACE_HINT_TEXTURE" : "",
258	(surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL) ? " SVGA3D_SURFACE_HINT_DEPTHSTENCIL" : "",
259	(surfaceFlags & SVGA3D_SURFACE_HINT_RENDERTARGET) ? " SVGA3D_SURFACE_HINT_RENDERTARGET" : "",
260	(surfaceFlags & SVGA3D_SURFACE_CUBEMAP) ? " SVGA3D_SURFACE_CUBEMAP" : ""
261	));
262
263	Assert(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface));
264
265	/* Allocate buffer to hold the surface data until we can move it into a D3D object */
266	uint32_t cbMemRemaining = SVGA3D_MAX_SURFACE_MEM_SIZE; /* Do not allow more than this for a surface. */
267	for (uint32_t i = 0; i < cMipLevels; ++i)
268	{
269	PVMSVGA3DMIPMAPLEVEL pMipmapLevel = &pSurface->paMipmapLevels[i];
270	LogFunc(("[%d] face %d mip level %d (%d,%d,%d) cbBlock=0x%x block %dx%d\n",
271	i, i / pSurface->faces[0].numMipLevels, i % pSurface->faces[0].numMipLevels,
272	pMipmapLevel->mipmapSize.width, pMipmapLevel->mipmapSize.height, pMipmapLevel->mipmapSize.depth,
273	pSurface->cbBlock, pSurface->cxBlock, pSurface->cyBlock));
274
275	uint32_t cBlocksX;
276	uint32_t cBlocksY;
277	if (RT_LIKELY(pSurface->cxBlock == 1 && pSurface->cyBlock == 1))
278	{
279	cBlocksX = pMipmapLevel->mipmapSize.width;
280	cBlocksY = pMipmapLevel->mipmapSize.height;
281	}
282	else
283	{
284	cBlocksX = pMipmapLevel->mipmapSize.width / pSurface->cxBlock;
285	if (pMipmapLevel->mipmapSize.width % pSurface->cxBlock)
286	++cBlocksX;
287	cBlocksY = pMipmapLevel->mipmapSize.height / pSurface->cyBlock;
288	if (pMipmapLevel->mipmapSize.height % pSurface->cyBlock)
289	++cBlocksY;
290	}
291
292	if ( cBlocksX == 0
293	\|\| cBlocksY == 0
294	\|\| pMipmapLevel->mipmapSize.depth == 0)
295	return VERR_INVALID_PARAMETER;
296
297	const uint32_t cMaxBlocksX = cbMemRemaining / pSurface->cbBlock;
298	if (cBlocksX > cMaxBlocksX)
299	return VERR_INVALID_PARAMETER;
300	const uint32_t cbSurfacePitch = pSurface->cbBlock * cBlocksX;
301	LogFunc(("cbSurfacePitch=0x%x\n", cbSurfacePitch));
302
303	const uint32_t cMaxBlocksY = cbMemRemaining / cbSurfacePitch;
304	if (cBlocksY > cMaxBlocksY)
305	return VERR_INVALID_PARAMETER;
306	const uint32_t cbSurfacePlane = cbSurfacePitch * cBlocksY;
307
308	const uint32_t cMaxDepth = cbMemRemaining / cbSurfacePlane;
309	if (pMipmapLevel->mipmapSize.depth > cMaxDepth)
310	return VERR_INVALID_PARAMETER;
311	const uint32_t cbSurface = cbSurfacePlane * pMipmapLevel->mipmapSize.depth;
312
313	pMipmapLevel->cBlocksX = cBlocksX;
314	pMipmapLevel->cBlocksY = cBlocksY;
315	pMipmapLevel->cBlocks = cBlocksX * cBlocksY * pMipmapLevel->mipmapSize.depth;
316	pMipmapLevel->cbSurfacePitch = cbSurfacePitch;
317	pMipmapLevel->cbSurfacePlane = cbSurfacePlane;
318	pMipmapLevel->cbSurface = cbSurface;
319	pMipmapLevel->pSurfaceData = RTMemAllocZ(cbSurface);
320	AssertReturn(pMipmapLevel->pSurfaceData, VERR_NO_MEMORY);
321
322	cbMemRemaining -= cbSurface;
323	}
324	return VINF_SUCCESS;
325	}
326
327
328	/**
329	* Implements the SVGA_3D_CMD_SURFACE_DESTROY command (fifo).
330	*
331	* @returns VBox status code (currently ignored).
332	* @param pThisCC The VGA/VMSVGA state for ring-3.
333	* @param sid The ID of the surface to destroy.
334	*/
335	int vmsvga3dSurfaceDestroy(PVGASTATECC pThisCC, uint32_t sid)
336	{
337	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
338	AssertReturn(pState, VERR_NO_MEMORY);
339
340	PVMSVGA3DSURFACE pSurface;
341	int rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
342	AssertRCReturn(rc, rc);
343
344	LogFunc(("sid=%u\n", sid));
345
346	/* Check all contexts if this surface is used as a render target or active texture. */
347	for (uint32_t cid = 0; cid < pState->cContexts; cid++)
348	{
349	PVMSVGA3DCONTEXT pContext = pState->papContexts[cid];
350	if (pContext->id == cid)
351	{
352	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); ++i)
353	if (pContext->aSidActiveTextures[i] == sid)
354	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
355	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); ++i)
356	if (pContext->state.aRenderTargets[i] == sid)
357	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
358	}
359	}
360
361	vmsvga3dBackSurfaceDestroy(pState, pSurface);
362
363	if (pSurface->paMipmapLevels)
364	{
365	for (uint32_t i = 0; i < pSurface->cMipmapLevels; ++i)
366	RTMemFreeZ(pSurface->paMipmapLevels[i].pSurfaceData, pSurface->paMipmapLevels[i].cbSurface);
367	RTMemFree(pSurface->paMipmapLevels);
368	}
369
370	memset(pSurface, 0, sizeof(*pSurface));
371	pSurface->id = SVGA3D_INVALID_ID;
372
373	return VINF_SUCCESS;
374	}
375
376
377	/**
378	* Implements the SVGA_3D_CMD_SURFACE_STRETCHBLT command (fifo).
379	*
380	* @returns VBox status code (currently ignored).
381	* @param pThis The shared VGA/VMSVGA state.
382	* @param pThisCC The VGA/VMSVGA state for ring-3.
383	* @param pDstSfcImg
384	* @param pDstBox
385	* @param pSrcSfcImg
386	* @param pSrcBox
387	* @param enmMode
388	*/
389	int vmsvga3dSurfaceStretchBlt(PVGASTATE pThis, PVGASTATECC pThisCC, SVGA3dSurfaceImageId const pDstSfcImg, SVGA3dBox const pDstBox,
390	SVGA3dSurfaceImageId const pSrcSfcImg, SVGA3dBox const pSrcBox, SVGA3dStretchBltMode enmMode)
391	{
392	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
393	AssertReturn(pState, VERR_NO_MEMORY);
394
395	int rc;
396
397	uint32_t const sidSrc = pSrcSfcImg->sid;
398	PVMSVGA3DSURFACE pSrcSurface;
399	rc = vmsvga3dSurfaceFromSid(pState, sidSrc, &pSrcSurface);
400	AssertRCReturn(rc, rc);
401
402	uint32_t const sidDst = pDstSfcImg->sid;
403	PVMSVGA3DSURFACE pDstSurface;
404	rc = vmsvga3dSurfaceFromSid(pState, sidDst, &pDstSurface);
405	AssertRCReturn(rc, rc);
406
407	/* Can use faces[0].numMipLevels, because numMipLevels is the same for all faces. */
408	AssertReturn(pSrcSfcImg->face < pSrcSurface->cFaces, VERR_INVALID_PARAMETER);
409	AssertReturn(pSrcSfcImg->mipmap < pSrcSurface->faces[0].numMipLevels, VERR_INVALID_PARAMETER);
410	AssertReturn(pDstSfcImg->face < pDstSurface->cFaces, VERR_INVALID_PARAMETER);
411	AssertReturn(pDstSfcImg->mipmap < pDstSurface->faces[0].numMipLevels, VERR_INVALID_PARAMETER);
412
413	PVMSVGA3DCONTEXT pContext;
414	#ifdef VMSVGA3D_OPENGL
415	LogFunc(("src sid=%u (%d,%d)(%d,%d) dest sid=%u (%d,%d)(%d,%d) mode=%x\n",
416	sidSrc, pSrcBox->x, pSrcBox->y, pSrcBox->x + pSrcBox->w, pSrcBox->y + pSrcBox->h,
417	sidDst, pDstBox->x, pDstBox->y, pDstBox->x + pDstBox->w, pDstBox->y + pDstBox->h, enmMode));
418	pContext = &pState->SharedCtx;
419	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
420	#else
421	LogFunc(("src sid=%u cid=%u (%d,%d)(%d,%d) dest sid=%u cid=%u (%d,%d)(%d,%d) mode=%x\n",
422	sidSrc, pSrcSurface->idAssociatedContext, pSrcBox->x, pSrcBox->y, pSrcBox->x + pSrcBox->w, pSrcBox->y + pSrcBox->h,
423	sidDst, pDstSurface->idAssociatedContext, pDstBox->x, pDstBox->y, pDstBox->x + pDstBox->w, pDstBox->y + pDstBox->h, enmMode));
424
425	uint32_t cid = pDstSurface->idAssociatedContext;
426	if (cid == SVGA3D_INVALID_ID)
427	cid = pSrcSurface->idAssociatedContext;
428
429	/* At least one of surfaces must be in hardware. */
430	AssertReturn(cid != SVGA3D_INVALID_ID, VERR_INVALID_PARAMETER);
431
432	rc = vmsvga3dContextFromCid(pState, cid, &pContext);
433	AssertRCReturn(rc, rc);
434	#endif
435
436	if (!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSrcSurface))
437	{
438	/* Unknown surface type; turn it into a texture, which can be used for other purposes too. */
439	LogFunc(("unknown src sid=%u type=%d format=%d -> create texture\n", sidSrc, pSrcSurface->surfaceFlags, pSrcSurface->format));
440	rc = vmsvga3dBackCreateTexture(pState, pContext, pContext->id, pSrcSurface);
441	AssertRCReturn(rc, rc);
442	}
443
444	if (!VMSVGA3DSURFACE_HAS_HW_SURFACE(pDstSurface))
445	{
446	/* Unknown surface type; turn it into a texture, which can be used for other purposes too. */
447	LogFunc(("unknown dest sid=%u type=%d format=%d -> create texture\n", sidDst, pDstSurface->surfaceFlags, pDstSurface->format));
448	rc = vmsvga3dBackCreateTexture(pState, pContext, pContext->id, pDstSurface);
449	AssertRCReturn(rc, rc);
450	}
451
452	PVMSVGA3DMIPMAPLEVEL pSrcMipmapLevel;
453	rc = vmsvga3dMipmapLevel(pSrcSurface, pSrcSfcImg->face, pSrcSfcImg->mipmap, &pSrcMipmapLevel);
454	AssertRCReturn(rc, rc);
455
456	PVMSVGA3DMIPMAPLEVEL pDstMipmapLevel;
457	rc = vmsvga3dMipmapLevel(pDstSurface, pDstSfcImg->face, pDstSfcImg->mipmap, &pDstMipmapLevel);
458	AssertRCReturn(rc, rc);
459
460	SVGA3dBox clipSrcBox = *pSrcBox;
461	SVGA3dBox clipDstBox = *pDstBox;
462	vmsvgaR3ClipBox(&pSrcMipmapLevel->mipmapSize, &clipSrcBox);
463	vmsvgaR3ClipBox(&pDstMipmapLevel->mipmapSize, &clipDstBox);
464
465	return vmsvga3dBackSurfaceStretchBlt(pThis, pState,
466	pDstSurface, pDstSfcImg->face, pDstSfcImg->mipmap, &clipDstBox,
467	pSrcSurface, pSrcSfcImg->face, pSrcSfcImg->mipmap, &clipSrcBox,
468	enmMode, pContext);
469	}
470
471	/**
472	* Implements the SVGA_3D_CMD_SURFACE_DMA command (fifo).
473	*
474	* @returns VBox status code (currently ignored).
475	* @param pThis The shared VGA/VMSVGA instance data.
476	* @param pThisCC The VGA/VMSVGA state for ring-3.
477	* @param guest .
478	* @param host .
479	* @param transfer .
480	* @param cCopyBoxes .
481	* @param paBoxes .
482	*/
483	int vmsvga3dSurfaceDMA(PVGASTATE pThis, PVGASTATECC pThisCC, SVGAGuestImage guest, SVGA3dSurfaceImageId host,
484	SVGA3dTransferType transfer, uint32_t cCopyBoxes, SVGA3dCopyBox *paBoxes)
485	{
486	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
487	AssertReturn(pState, VERR_NO_MEMORY);
488
489	PVMSVGA3DSURFACE pSurface;
490	int rc = vmsvga3dSurfaceFromSid(pState, host.sid, &pSurface);
491	AssertRCReturn(rc, rc);
492
493	LogFunc(("%sguestptr gmr=%x offset=%x pitch=%x host sid=%u face=%d mipmap=%d transfer=%s cCopyBoxes=%d\n",
494	(pSurface->surfaceFlags & SVGA3D_SURFACE_HINT_TEXTURE) ? "TEXTURE " : "",
495	guest.ptr.gmrId, guest.ptr.offset, guest.pitch,
496	host.sid, host.face, host.mipmap, (transfer == SVGA3D_WRITE_HOST_VRAM) ? "READ" : "WRITE", cCopyBoxes));
497
498	PVMSVGA3DMIPMAPLEVEL pMipLevel;
499	rc = vmsvga3dMipmapLevel(pSurface, host.face, host.mipmap, &pMipLevel);
500	AssertRCReturn(rc, rc);
501
502	PVMSVGA3DCONTEXT pContext = NULL;
503	if (!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface))
504	{
505	/*
506	* Not realized in host hardware/library yet, we have to work with
507	* the copy of the data we've got in VMSVGA3DMIMAPLEVEL::pSurfaceData.
508	*/
509	AssertReturn(pMipLevel->pSurfaceData, VERR_INTERNAL_ERROR);
510	}
511	else
512	{
513	#ifdef VMSVGA3D_DIRECT3D
514	/* Flush the drawing pipeline for this surface as it could be used in a shared context. */
515	vmsvga3dSurfaceFlush(pSurface);
516
517	#else /* VMSVGA3D_OPENGL */
518	pContext = &pState->SharedCtx;
519	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
520	#endif
521	}
522
523	/* SVGA_3D_CMD_SURFACE_DMA:
524	* "define the 'source' in each copyBox as the guest image and the
525	* 'destination' as the host image, regardless of transfer direction."
526	*/
527	for (uint32_t i = 0; i < cCopyBoxes; ++i)
528	{
529	Log(("Copy box (%s) %d (%d,%d,%d)(%d,%d,%d) dest (%d,%d)\n",
530	VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface) ? "hw" : "mem",
531	i, paBoxes[i].srcx, paBoxes[i].srcy, paBoxes[i].srcz, paBoxes[i].w, paBoxes[i].h, paBoxes[i].d, paBoxes[i].x, paBoxes[i].y));
532
533	/* Apparently we're supposed to clip it (gmr test sample) */
534
535	/* The copybox's "dest" is coords in the host surface. Verify them against the surface's mipmap size. */
536	SVGA3dBox hostBox;
537	hostBox.x = paBoxes[i].x;
538	hostBox.y = paBoxes[i].y;
539	hostBox.z = paBoxes[i].z;
540	hostBox.w = paBoxes[i].w;
541	hostBox.h = paBoxes[i].h;
542	hostBox.d = paBoxes[i].d;
543	vmsvgaR3ClipBox(&pMipLevel->mipmapSize, &hostBox);
544
545	if ( !hostBox.w
546	\|\| !hostBox.h
547	\|\| !hostBox.d)
548	{
549	Log(("Skip empty box\n"));
550	continue;
551	}
552	RT_UNTRUSTED_VALIDATED_FENCE();
553
554	/* Adjust the guest, i.e. "src", point.
555	* Do not try to verify them here because vmsvgaR3GmrTransfer takes care of this.
556	*/
557	uint32_t const srcx = paBoxes[i].srcx + (hostBox.x - paBoxes[i].x);
558	uint32_t const srcy = paBoxes[i].srcy + (hostBox.y - paBoxes[i].y);
559	uint32_t const srcz = paBoxes[i].srcz + (hostBox.z - paBoxes[i].z);
560
561	/* Calculate offsets of the image blocks for the transfer. */
562	uint32_t u32HostBlockX;
563	uint32_t u32HostBlockY;
564	uint32_t u32GuestBlockX;
565	uint32_t u32GuestBlockY;
566	uint32_t cBlocksX;
567	uint32_t cBlocksY;
568	if (RT_LIKELY(pSurface->cxBlock == 1 && pSurface->cyBlock == 1))
569	{
570	u32HostBlockX = hostBox.x;
571	u32HostBlockY = hostBox.y;
572
573	u32GuestBlockX = srcx;
574	u32GuestBlockY = srcy;
575
576	cBlocksX = hostBox.w;
577	cBlocksY = hostBox.h;
578	}
579	else
580	{
581	/* Pixels to blocks. */
582	u32HostBlockX = hostBox.x / pSurface->cxBlock;
583	u32HostBlockY = hostBox.y / pSurface->cyBlock;
584	Assert(u32HostBlockX * pSurface->cxBlock == hostBox.x);
585	Assert(u32HostBlockY * pSurface->cyBlock == hostBox.y);
586
587	u32GuestBlockX = srcx / pSurface->cxBlock;
588	u32GuestBlockY = srcy / pSurface->cyBlock;
589	Assert(u32GuestBlockX * pSurface->cxBlock == srcx);
590	Assert(u32GuestBlockY * pSurface->cyBlock == srcy);
591
592	cBlocksX = (hostBox.w + pSurface->cxBlock - 1) / pSurface->cxBlock;
593	cBlocksY = (hostBox.h + pSurface->cyBlock - 1) / pSurface->cyBlock;
594	}
595
596	uint32_t cbGuestPitch = guest.pitch;
597	if (cbGuestPitch == 0)
598	{
599	/* Host must "assume image is tightly packed". Our surfaces are. */
600	cbGuestPitch = pMipLevel->cbSurfacePitch;
601	}
602	else
603	{
604	/* vmsvgaR3GmrTransfer will verify the value, just check it is sane. */
605	AssertReturn(cbGuestPitch <= SVGA3D_MAX_SURFACE_MEM_SIZE, VERR_INVALID_PARAMETER);
606	RT_UNTRUSTED_VALIDATED_FENCE();
607	}
608
609	/* srcx, srcy and srcz values are used to calculate the guest offset.
610	* The offset will be verified by vmsvgaR3GmrTransfer, so just check for overflows here.
611	*/
612	AssertReturn(srcz < UINT32_MAX / pMipLevel->mipmapSize.height / cbGuestPitch, VERR_INVALID_PARAMETER);
613	AssertReturn(u32GuestBlockY < UINT32_MAX / cbGuestPitch, VERR_INVALID_PARAMETER);
614	AssertReturn(u32GuestBlockX < UINT32_MAX / pSurface->cbBlock, VERR_INVALID_PARAMETER);
615	RT_UNTRUSTED_VALIDATED_FENCE();
616
617	if ( !VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface)
618	\|\| VMSVGA3DSURFACE_NEEDS_DATA(pSurface))
619	{
620	uint64_t uGuestOffset = u32GuestBlockX * pSurface->cbBlock +
621	u32GuestBlockY * cbGuestPitch +
622	srcz * pMipLevel->mipmapSize.height * cbGuestPitch;
623	AssertReturn(uGuestOffset < UINT32_MAX, VERR_INVALID_PARAMETER);
624
625	/* vmsvga3dSurfaceDefine verifies the surface dimensions and clipBox is within them. */
626	uint32_t uHostOffset = u32HostBlockX * pSurface->cbBlock +
627	u32HostBlockY * pMipLevel->cbSurfacePitch +
628	hostBox.z * pMipLevel->cbSurfacePlane;
629	AssertReturn(uHostOffset < pMipLevel->cbSurface, VERR_INTERNAL_ERROR);
630
631	for (uint32_t z = 0; z < hostBox.d; ++z)
632	{
633	rc = vmsvgaR3GmrTransfer(pThis,
634	pThisCC,
635	transfer,
636	(uint8_t *)pMipLevel->pSurfaceData,
637	pMipLevel->cbSurface,
638	uHostOffset,
639	(int32_t)pMipLevel->cbSurfacePitch,
640	guest.ptr,
641	(uint32_t)uGuestOffset,
642	cbGuestPitch,
643	cBlocksX * pSurface->cbBlock,
644	cBlocksY);
645	AssertRC(rc);
646
647	Log4(("first line [z=%d] (updated at offset 0x%x):\n%.*Rhxd\n",
648	z, uHostOffset, pMipLevel->cbSurfacePitch, pMipLevel->pSurfaceData));
649
650	uHostOffset += pMipLevel->cbSurfacePlane;
651	uGuestOffset += pMipLevel->mipmapSize.height * cbGuestPitch;
652	AssertReturn(uGuestOffset < UINT32_MAX, VERR_INVALID_PARAMETER);
653	}
654	}
655
656	if (VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface))
657	{
658	SVGA3dCopyBox clipBox;
659	clipBox.x = hostBox.x;
660	clipBox.y = hostBox.y;
661	clipBox.z = hostBox.z;
662	clipBox.w = hostBox.w;
663	clipBox.h = hostBox.h;
664	clipBox.d = hostBox.d;
665	clipBox.srcx = srcx;
666	clipBox.srcy = srcy;
667	clipBox.srcz = srcz;
668	rc = vmsvga3dBackSurfaceDMACopyBox(pThis, pThisCC, pState, pSurface, pMipLevel, host.face, host.mipmap,
669	guest.ptr, cbGuestPitch, transfer,
670	&clipBox, pContext, rc, i);
671	AssertRC(rc);
672	}
673	}
674
675	if (!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface))
676	{
677	pMipLevel->fDirty = true;
678	pSurface->fDirty = true;
679	}
680
681	return rc;
682	}
683
684	static int vmsvga3dQueryWriteResult(PVGASTATE pThis, PVGASTATECC pThisCC, SVGAGuestPtr guestResult,
685	SVGA3dQueryState enmState, uint32_t u32Result)
686	{
687	SVGA3dQueryResult queryResult;
688	queryResult.totalSize = sizeof(queryResult); /* Set by guest before query is ended. */
689	queryResult.state = enmState; /* Set by host or guest. See SVGA3dQueryState. */
690	queryResult.result32 = u32Result;
691
692	int rc = vmsvgaR3GmrTransfer(pThis, pThisCC, SVGA3D_READ_HOST_VRAM,
693	(uint8_t *)&queryResult, sizeof(queryResult), 0, sizeof(queryResult),
694	guestResult, 0, sizeof(queryResult), sizeof(queryResult), 1);
695	AssertRC(rc);
696	return rc;
697	}
698
699	int vmsvga3dQueryBegin(PVGASTATECC pThisCC, uint32_t cid, SVGA3dQueryType type)
700	{
701	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
702	AssertReturn(pState, VERR_NO_MEMORY);
703
704	LogFunc(("cid=%u type=%d\n", cid, type));
705
706	PVMSVGA3DCONTEXT pContext;
707	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
708	AssertRCReturn(rc, rc);
709
710	if (type == SVGA3D_QUERYTYPE_OCCLUSION)
711	{
712	VMSVGA3DQUERY *p = &pContext->occlusion;
713	if (!VMSVGA3DQUERY_EXISTS(p))
714	{
715	/* Lazy creation of the query object. */
716	rc = vmsvga3dOcclusionQueryCreate(pState, pContext);
717	AssertRCReturn(rc, rc);
718	}
719
720	rc = vmsvga3dOcclusionQueryBegin(pState, pContext);
721	AssertRCReturn(rc, rc);
722
723	p->enmQueryState = VMSVGA3DQUERYSTATE_BUILDING;
724	p->u32QueryResult = 0;
725
726	return VINF_SUCCESS;
727	}
728
729	/* Nothing else for VGPU9. */
730	AssertFailedReturn(VERR_NOT_IMPLEMENTED);
731	}
732
733	int vmsvga3dQueryEnd(PVGASTATECC pThisCC, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
734	{
735	RT_NOREF(guestResult);
736	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
737	AssertReturn(pState, VERR_NO_MEMORY);
738
739	LogFunc(("cid=%u type=%d guestResult %d:0x%x\n", cid, type, guestResult.gmrId, guestResult.offset));
740
741	PVMSVGA3DCONTEXT pContext;
742	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
743	AssertRCReturn(rc, rc);
744
745	if (type == SVGA3D_QUERYTYPE_OCCLUSION)
746	{
747	VMSVGA3DQUERY *p = &pContext->occlusion;
748	Assert(p->enmQueryState == VMSVGA3DQUERYSTATE_BUILDING);
749	AssertMsgReturn(VMSVGA3DQUERY_EXISTS(p), ("Query is NULL\n"), VERR_INTERNAL_ERROR);
750
751	rc = vmsvga3dOcclusionQueryEnd(pState, pContext);
752	AssertRCReturn(rc, rc);
753
754	p->enmQueryState = VMSVGA3DQUERYSTATE_ISSUED;
755
756	/* Do not touch guestResult, because the guest will call WaitForQuery. */
757	return VINF_SUCCESS;
758	}
759
760	/* Nothing else for VGPU9. */
761	AssertFailedReturn(VERR_NOT_IMPLEMENTED);
762	}
763
764	int vmsvga3dQueryWait(PVGASTATE pThis, PVGASTATECC pThisCC, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
765	{
766	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
767	AssertReturn(pState, VERR_NO_MEMORY);
768
769	LogFunc(("cid=%u type=%d guestResult GMR%d:0x%x\n", cid, type, guestResult.gmrId, guestResult.offset));
770
771	PVMSVGA3DCONTEXT pContext;
772	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
773	AssertRCReturn(rc, rc);
774
775	if (type == SVGA3D_QUERYTYPE_OCCLUSION)
776	{
777	VMSVGA3DQUERY *p = &pContext->occlusion;
778	if (VMSVGA3DQUERY_EXISTS(p))
779	{
780	if (p->enmQueryState == VMSVGA3DQUERYSTATE_ISSUED)
781	{
782	/* Only if not already in SIGNALED state,
783	* i.e. not a second read from the guest or after restoring saved state.
784	*/
785	uint32_t u32Pixels = 0;
786	rc = vmsvga3dOcclusionQueryGetData(pState, pContext, &u32Pixels);
787	if (RT_SUCCESS(rc))
788	{
789	p->enmQueryState = VMSVGA3DQUERYSTATE_SIGNALED;
790	p->u32QueryResult += u32Pixels; /* += because it might contain partial result from saved state. */
791	}
792	}
793
794	if (RT_SUCCESS(rc))
795	{
796	/* Return data to the guest. */
797	vmsvga3dQueryWriteResult(pThis, pThisCC, guestResult, SVGA3D_QUERYSTATE_SUCCEEDED, p->u32QueryResult);
798	return VINF_SUCCESS;
799	}
800	}
801	else
802	{
803	AssertMsgFailed(("GetData Query is NULL\n"));
804	}
805
806	rc = VERR_INTERNAL_ERROR;
807	}
808	else
809	{
810	rc = VERR_NOT_IMPLEMENTED;
811	}
812
813	vmsvga3dQueryWriteResult(pThis, pThisCC, guestResult, SVGA3D_QUERYSTATE_FAILED, 0);
814	AssertFailedReturn(rc);
815	}
816
817	int vmsvga3dSurfaceBlitToScreen(PVGASTATE pThis, PVGASTATECC pThisCC, uint32_t idDstScreen, SVGASignedRect destRect,
818	SVGA3dSurfaceImageId srcImage, SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *pRect)
819	{
820	/* Requires SVGA_FIFO_CAP_SCREEN_OBJECT support */
821	LogFunc(("dest=%d (%d,%d)(%d,%d) sid=%u (face=%d, mipmap=%d) (%d,%d)(%d,%d) cRects=%d\n",
822	idDstScreen, destRect.left, destRect.top, destRect.right, destRect.bottom, srcImage.sid, srcImage.face, srcImage.mipmap,
823	srcRect.left, srcRect.top, srcRect.right, srcRect.bottom, cRects));
824	for (uint32_t i = 0; i < cRects; i++)
825	{
826	LogFunc(("clipping rect %d (%d,%d)(%d,%d)\n", i, pRect[i].left, pRect[i].top, pRect[i].right, pRect[i].bottom));
827	}
828
829	VMSVGASCREENOBJECT *pScreen = vmsvgaR3GetScreenObject(pThisCC, idDstScreen);
830	AssertReturn(pScreen, VERR_INTERNAL_ERROR);
831
832	/* vmwgfx driver does not always initialize srcImage.mipmap and srcImage.face. They are assumed to be zero. */
833	SVGA3dSurfaceImageId src;
834	src.sid = srcImage.sid;
835	src.mipmap = 0;
836	src.face = 0;
837
838	if (pScreen->pHwScreen)
839	{
840	/* Use the backend accelerated method, if available. */
841	int rc = vmsvga3dBackSurfaceBlitToScreen(pThisCC, pScreen,
842	destRect, src, srcRect, cRects, pRect);
843	if (rc == VINF_SUCCESS)
844	{
845	return VINF_SUCCESS;
846	}
847	}
848
849	/** @todo scaling */
850	AssertReturn(destRect.right - destRect.left == srcRect.right - srcRect.left && destRect.bottom - destRect.top == srcRect.bottom - srcRect.top, VERR_INVALID_PARAMETER);
851
852	SVGA3dCopyBox box;
853	SVGAGuestImage dest;
854
855	box.srcz = 0;
856	box.z = 0;
857	box.d = 1;
858
859	dest.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
860	dest.ptr.offset = pScreen->offVRAM;
861	dest.pitch = pScreen->cbPitch;
862
863	if (cRects == 0)
864	{
865	/* easy case; no clipping */
866
867	/* SVGA_3D_CMD_SURFACE_DMA:
868	* 'define the "source" in each copyBox as the guest image and the
869	* "destination" as the host image, regardless of transfer direction.'
870	*
871	* Since the BlitToScreen operation transfers from a host surface to the guest VRAM,
872	* it must set the copyBox "source" to the guest destination coords and
873	* the copyBox "destination" to the host surface source coords.
874	*/
875	/* Host image. */
876	box.x = srcRect.left;
877	box.y = srcRect.top;
878	box.w = srcRect.right - srcRect.left;
879	box.h = srcRect.bottom - srcRect.top;
880	/* Guest image. */
881	box.srcx = destRect.left;
882	box.srcy = destRect.top;
883
884	int rc = vmsvga3dSurfaceDMA(pThis, pThisCC, dest, src, SVGA3D_READ_HOST_VRAM, 1, &box);
885	AssertRCReturn(rc, rc);
886
887	/* Update the guest image, which is at box.src. */
888	vmsvgaR3UpdateScreen(pThisCC, pScreen, box.srcx, box.srcy, box.w, box.h);
889	}
890	else
891	{
892	/** @todo merge into one SurfaceDMA call */
893	for (uint32_t i = 0; i < cRects; i++)
894	{
895	/* "The clip rectangle coordinates are measured
896	* relative to the top-left corner of destRect."
897	* Therefore they are relative to the top-left corner of srcRect as well.
898	*/
899
900	/* Host image. See 'SVGA_3D_CMD_SURFACE_DMA:' comment in the 'if' branch. */
901	box.x = srcRect.left + pRect[i].left;
902	box.y = srcRect.top + pRect[i].top;
903	box.w = pRect[i].right - pRect[i].left;
904	box.h = pRect[i].bottom - pRect[i].top;
905	/* Guest image. The target screen memory is currently in the guest VRAM. */
906	box.srcx = destRect.left + pRect[i].left;
907	box.srcy = destRect.top + pRect[i].top;
908
909	int rc = vmsvga3dSurfaceDMA(pThis, pThisCC, dest, src, SVGA3D_READ_HOST_VRAM, 1, &box);
910	AssertRCReturn(rc, rc);
911
912	/* Update the guest image, which is at box.src. */
913	vmsvgaR3UpdateScreen(pThisCC, pScreen, box.srcx, box.srcy, box.w, box.h);
914	}
915	}
916
917	return VINF_SUCCESS;
918	}
919
920	int vmsvga3dCommandPresent(PVGASTATE pThis, PVGASTATECC pThisCC, uint32_t sid, uint32_t cRects, SVGA3dCopyRect *pRect)
921	{
922	/* Deprecated according to svga3d_reg.h. */
923	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
924	AssertReturn(pState, VERR_NO_MEMORY);
925
926	PVMSVGA3DSURFACE pSurface;
927	int rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
928	AssertRCReturn(rc, rc);
929
930	/** @todo Detect screen from coords? Or split rect to screens? */
931	VMSVGASCREENOBJECT *pScreen = vmsvgaR3GetScreenObject(pThisCC, 0);
932	AssertReturn(pScreen, VERR_INTERNAL_ERROR);
933
934	/* If there are no recangles specified, just grab a screenful. */
935	SVGA3dCopyRect DummyRect;
936	if (cRects != 0)
937	{ /* likely */ }
938	else
939	{
940	/** @todo Find the usecase for this or check what the original device does.
941	* The original code was doing some scaling based on the surface
942	* size... */
943	AssertMsgFailed(("No rects to present. Who is doing that and what do they actually expect?\n"));
944	DummyRect.x = DummyRect.srcx = 0;
945	DummyRect.y = DummyRect.srcy = 0;
946	DummyRect.w = pScreen->cWidth;
947	DummyRect.h = pScreen->cHeight;
948	cRects = 1;
949	pRect = &DummyRect;
950	}
951
952	uint32_t i;
953	for (i = 0; i < cRects; ++i)
954	{
955	uint32_t idDstScreen = 0; /** @todo Use virtual coords: SVGA_ID_INVALID. */
956	SVGASignedRect destRect;
957	destRect.left = pRect[i].x;
958	destRect.top = pRect[i].y;
959	destRect.right = pRect[i].x + pRect[i].w;
960	destRect.bottom = pRect[i].y + pRect[i].h;
961
962	SVGA3dSurfaceImageId src;
963	src.sid = sid;
964	src.face = 0;
965	src.mipmap = 0;
966
967	SVGASignedRect srcRect;
968	srcRect.left = pRect[i].srcx;
969	srcRect.top = pRect[i].srcy;
970	srcRect.right = pRect[i].srcx + pRect[i].w;
971	srcRect.bottom = pRect[i].srcy + pRect[i].h;
972
973	/* Entire rect. */
974	rc = vmsvga3dSurfaceBlitToScreen(pThis, pThisCC, idDstScreen, destRect, src, srcRect, 0, NULL);
975	AssertRCReturn(rc, rc);
976	}
977
978	return VINF_SUCCESS;
979	}
980
981	int vmsvga3dDefineScreen(PVGASTATE pThis, PVGASTATECC pThisCC, VMSVGASCREENOBJECT *pScreen)
982	{
983	if (pScreen->pHwScreen)
984	{
985	vmsvga3dBackDestroyScreen(pThisCC, pScreen);
986	}
987
988	int rc = vmsvga3dBackDefineScreen(pThis, pThisCC, pScreen);
989	if (RT_SUCCESS(rc))
990	{
991	LogRelMax(1, ("VMSVGA: using accelerated graphics output\n"));
992	}
993	return rc;
994	}
995
996	int vmsvga3dDestroyScreen(PVGASTATECC pThisCC, VMSVGASCREENOBJECT *pScreen)
997	{
998	return vmsvga3dBackDestroyScreen(pThisCC, pScreen);
999	}

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d.cpp@ 86024

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