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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:17:27 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:17:27 +0000 |
commit | f215e02bf85f68d3a6106c2a1f4f7f063f819064 (patch) | |
tree | 6bb5b92c046312c4e95ac2620b10ddf482d3fa8b /src/VBox/Additions/x11/vboxvideo/vbva.c | |
parent | Initial commit. (diff) | |
download | virtualbox-upstream/7.0.14-dfsg.tar.xz virtualbox-upstream/7.0.14-dfsg.zip |
Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/VBox/Additions/x11/vboxvideo/vbva.c')
-rw-r--r-- | src/VBox/Additions/x11/vboxvideo/vbva.c | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/src/VBox/Additions/x11/vboxvideo/vbva.c b/src/VBox/Additions/x11/vboxvideo/vbva.c new file mode 100644 index 00000000..e885d082 --- /dev/null +++ b/src/VBox/Additions/x11/vboxvideo/vbva.c @@ -0,0 +1,254 @@ +/* $Id: vbva.c $ */ +/** @file + * VirtualBox X11 Additions graphics driver 2D acceleration functions + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#if defined(IN_XF86_MODULE) && !defined(NO_ANSIC) +# include "xf86_ansic.h" +#endif +#include "compiler.h" + +#include "vboxvideo.h" + +#ifdef XORG_7X +# include <stdlib.h> +# include <string.h> +#endif + +/************************************************************************** +* Main functions * +**************************************************************************/ + +/** + * Callback function called by the X server to tell us about dirty + * rectangles in the video buffer. + * + * @param pScrn pointer to the information structure for the current + * screen + * @param iRects Number of dirty rectangles to update + * @param aRects Array of structures containing the coordinates of the + * rectangles + */ +void vbvxHandleDirtyRect(ScrnInfoPtr pScrn, int iRects, BoxPtr aRects) +{ + VBVACMDHDR cmdHdr; + VBOXPtr pVBox; + int i; + unsigned j; + + pVBox = pScrn->driverPrivate; + if (!pScrn->vtSema) + return; + + for (j = 0; j < pVBox->cScreens; ++j) + { + /* Just continue quietly if VBVA is not currently active. */ + struct VBVABUFFER *pVBVA = pVBox->pScreens[j].aVbvaCtx.pVBVA; + if ( !pVBVA + || !(pVBVA->hostFlags.u32HostEvents & VBVA_F_MODE_ENABLED)) + continue; + for (i = 0; i < iRects; ++i) + { + if ( aRects[i].x1 > pVBox->pScreens[j].aScreenLocation.x + + pVBox->pScreens[j].aScreenLocation.cx + || aRects[i].y1 > pVBox->pScreens[j].aScreenLocation.y + + pVBox->pScreens[j].aScreenLocation.cy + || aRects[i].x2 < pVBox->pScreens[j].aScreenLocation.x + || aRects[i].y2 < pVBox->pScreens[j].aScreenLocation.y) + continue; + cmdHdr.x = (int16_t)aRects[i].x1 - pVBox->pScreens[0].aScreenLocation.x; + cmdHdr.y = (int16_t)aRects[i].y1 - pVBox->pScreens[0].aScreenLocation.y; + cmdHdr.w = (uint16_t)(aRects[i].x2 - aRects[i].x1); + cmdHdr.h = (uint16_t)(aRects[i].y2 - aRects[i].y1); + +#if 0 + TRACE_LOG("display=%u, x=%d, y=%d, w=%d, h=%d\n", + j, cmdHdr.x, cmdHdr.y, cmdHdr.w, cmdHdr.h); +#endif + + if (VBoxVBVABufferBeginUpdate(&pVBox->pScreens[j].aVbvaCtx, + &pVBox->guestCtx)) + { + VBoxVBVAWrite(&pVBox->pScreens[j].aVbvaCtx, &pVBox->guestCtx, &cmdHdr, + sizeof(cmdHdr)); + VBoxVBVABufferEndUpdate(&pVBox->pScreens[j].aVbvaCtx); + } + } + } +} + +static DECLCALLBACK(void *) hgsmiEnvAlloc(void *pvEnv, HGSMISIZE cb) +{ + RT_NOREF(pvEnv); + return calloc(1, cb); +} + +static DECLCALLBACK(void) hgsmiEnvFree(void *pvEnv, void *pv) +{ + RT_NOREF(pvEnv); + free(pv); +} + +static HGSMIENV g_hgsmiEnv = +{ + NULL, + hgsmiEnvAlloc, + hgsmiEnvFree +}; + +/** + * Calculate the location in video RAM of and initialise the heap for guest to + * host messages. + */ +void vbvxSetUpHGSMIHeapInGuest(VBOXPtr pVBox, uint32_t cbVRAM) +{ + int rc; + uint32_t offVRAMBaseMapping, offGuestHeapMemory, cbGuestHeapMemory; + void *pvGuestHeapMemory; + + VBoxHGSMIGetBaseMappingInfo(cbVRAM, &offVRAMBaseMapping, NULL, &offGuestHeapMemory, &cbGuestHeapMemory, NULL); + pvGuestHeapMemory = ((uint8_t *)pVBox->base) + offVRAMBaseMapping + offGuestHeapMemory; + rc = VBoxHGSMISetupGuestContext(&pVBox->guestCtx, pvGuestHeapMemory, cbGuestHeapMemory, + offVRAMBaseMapping + offGuestHeapMemory, &g_hgsmiEnv); + AssertMsg(RT_SUCCESS(rc), ("Failed to set up the guest-to-host message buffer heap, rc=%d\n", rc)); + pVBox->cbView = offVRAMBaseMapping; +} + +/** Callback to fill in the view structures */ +static DECLCALLBACK(int) vboxFillViewInfo(void *pvVBox, struct VBVAINFOVIEW *pViews, uint32_t cViews) +{ + VBOXPtr pVBox = (VBOXPtr)pvVBox; + unsigned i; + for (i = 0; i < cViews; ++i) + { + pViews[i].u32ViewIndex = i; + pViews[i].u32ViewOffset = 0; + pViews[i].u32ViewSize = pVBox->cbView; + pViews[i].u32MaxScreenSize = pVBox->cbFBMax; + } + return VINF_SUCCESS; +} + +/** + * Initialise VirtualBox's accelerated video extensions. + * + * @returns TRUE on success, FALSE on failure + */ +static Bool vboxSetupVRAMVbva(VBOXPtr pVBox) +{ + int rc = VINF_SUCCESS; + unsigned i; + + pVBox->cbFBMax = pVBox->cbView; + for (i = 0; i < pVBox->cScreens; ++i) + { + pVBox->cbFBMax -= VBVA_MIN_BUFFER_SIZE; + pVBox->pScreens[i].aoffVBVABuffer = pVBox->cbFBMax; + TRACE_LOG("VBVA buffer offset for screen %u: 0x%lx\n", i, + (unsigned long) pVBox->cbFBMax); + VBoxVBVASetupBufferContext(&pVBox->pScreens[i].aVbvaCtx, + pVBox->pScreens[i].aoffVBVABuffer, + VBVA_MIN_BUFFER_SIZE); + } + TRACE_LOG("Maximum framebuffer size: %lu (0x%lx)\n", + (unsigned long) pVBox->cbFBMax, + (unsigned long) pVBox->cbFBMax); + rc = VBoxHGSMISendViewInfo(&pVBox->guestCtx, pVBox->cScreens, + vboxFillViewInfo, (void *)pVBox); + AssertMsg(RT_SUCCESS(rc), ("Failed to send the view information to the host, rc=%d\n", rc)); + return TRUE; +} + +static Bool haveHGSMIModeHintAndCursorReportingInterface(VBOXPtr pVBox) +{ + uint32_t fModeHintReporting, fCursorReporting; + + return RT_SUCCESS(VBoxQueryConfHGSMI(&pVBox->guestCtx, VBOX_VBVA_CONF32_MODE_HINT_REPORTING, &fModeHintReporting)) + && RT_SUCCESS(VBoxQueryConfHGSMI(&pVBox->guestCtx, VBOX_VBVA_CONF32_GUEST_CURSOR_REPORTING, &fCursorReporting)) + && fModeHintReporting == VINF_SUCCESS + && fCursorReporting == VINF_SUCCESS; +} + +static Bool hostHasScreenBlankingFlag(VBOXPtr pVBox) +{ + uint32_t fScreenFlags; + + return RT_SUCCESS(VBoxQueryConfHGSMI(&pVBox->guestCtx, VBOX_VBVA_CONF32_SCREEN_FLAGS, &fScreenFlags)) + && fScreenFlags & VBVA_SCREEN_F_BLANK; +} + +/** + * Inform VBox that we will supply it with dirty rectangle information + * and install the dirty rectangle handler. + * + * @returns TRUE for success, FALSE for failure + * @param pScrn Pointer to a structure describing the X screen in use + */ +Bool +vboxEnableVbva(ScrnInfoPtr pScrn) +{ + Bool rc = TRUE; + unsigned i; + VBOXPtr pVBox = pScrn->driverPrivate; + + TRACE_ENTRY(); + if (!vboxSetupVRAMVbva(pVBox)) + return FALSE; + for (i = 0; i < pVBox->cScreens; ++i) + { + struct VBVABUFFER *pVBVA; + + pVBVA = (struct VBVABUFFER *) ( ((uint8_t *)pVBox->base) + + pVBox->pScreens[i].aoffVBVABuffer); + if (!VBoxVBVAEnable(&pVBox->pScreens[i].aVbvaCtx, &pVBox->guestCtx, + pVBVA, i)) + rc = FALSE; + } + AssertMsg(rc, ("Failed to enable screen update reporting for at least one virtual monitor.\n")); + pVBox->fHaveHGSMIModeHints = haveHGSMIModeHintAndCursorReportingInterface(pVBox); + pVBox->fHostHasScreenBlankingFlag = hostHasScreenBlankingFlag(pVBox); + return rc; +} + +/** + * Inform VBox that we will stop supplying it with dirty rectangle + * information. This function is intended to be called when an X + * virtual terminal is disabled, or the X server is terminated. + * + * @param pScrn Pointer to a structure describing the X screen in use + */ +void +vboxDisableVbva(ScrnInfoPtr pScrn) +{ + unsigned i; + VBOXPtr pVBox = pScrn->driverPrivate; + + TRACE_ENTRY(); + for (i = 0; i < pVBox->cScreens; ++i) + VBoxVBVADisable(&pVBox->pScreens[i].aVbvaCtx, &pVBox->guestCtx, i); +} |