| 1 | /* $Id: vbva.c 106061 2024-09-16 14:03:52Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * VirtualBox X11 Additions graphics driver 2D acceleration functions
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2006-2024 Oracle and/or its affiliates.
|
|---|
| 8 | *
|
|---|
| 9 | * Permission is hereby granted, free of charge, to any person
|
|---|
| 10 | * obtaining a copy of this software and associated documentation
|
|---|
| 11 | * files (the "Software"), to deal in the Software without
|
|---|
| 12 | * restriction, including without limitation the rights to use,
|
|---|
| 13 | * copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|---|
| 14 | * copies of the Software, and to permit persons to whom the
|
|---|
| 15 | * Software is furnished to do so, subject to the following
|
|---|
| 16 | * conditions:
|
|---|
| 17 | *
|
|---|
| 18 | * The above copyright notice and this permission notice shall be
|
|---|
| 19 | * included in all copies or substantial portions of the Software.
|
|---|
| 20 | *
|
|---|
| 21 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|---|
| 22 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
|---|
| 23 | * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|---|
| 24 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
|---|
| 25 | * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
|---|
| 26 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|---|
| 27 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|---|
| 28 | * OTHER DEALINGS IN THE SOFTWARE.
|
|---|
| 29 | */
|
|---|
| 30 |
|
|---|
| 31 | #if defined(IN_XF86_MODULE) && !defined(NO_ANSIC)
|
|---|
| 32 | # include "xf86_ansic.h"
|
|---|
| 33 | #endif
|
|---|
| 34 | #include "compiler.h"
|
|---|
| 35 |
|
|---|
| 36 | #include "vboxvideo.h"
|
|---|
| 37 |
|
|---|
| 38 | #ifdef XORG_7X
|
|---|
| 39 | # include <stdlib.h>
|
|---|
| 40 | # include <string.h>
|
|---|
| 41 | #endif
|
|---|
| 42 |
|
|---|
| 43 | /**************************************************************************
|
|---|
| 44 | * Main functions *
|
|---|
| 45 | **************************************************************************/
|
|---|
| 46 |
|
|---|
| 47 | /**
|
|---|
| 48 | * Callback function called by the X server to tell us about dirty
|
|---|
| 49 | * rectangles in the video buffer.
|
|---|
| 50 | *
|
|---|
| 51 | * @param pScrn pointer to the information structure for the current
|
|---|
| 52 | * screen
|
|---|
| 53 | * @param iRects Number of dirty rectangles to update
|
|---|
| 54 | * @param aRects Array of structures containing the coordinates of the
|
|---|
| 55 | * rectangles
|
|---|
| 56 | */
|
|---|
| 57 | void vbvxHandleDirtyRect(ScrnInfoPtr pScrn, int iRects, BoxPtr aRects)
|
|---|
| 58 | {
|
|---|
| 59 | VBVACMDHDR cmdHdr;
|
|---|
| 60 | VBOXPtr pVBox;
|
|---|
| 61 | int i;
|
|---|
| 62 | unsigned j;
|
|---|
| 63 |
|
|---|
| 64 | pVBox = pScrn->driverPrivate;
|
|---|
| 65 | if (!pScrn->vtSema)
|
|---|
| 66 | return;
|
|---|
| 67 |
|
|---|
| 68 | for (j = 0; j < pVBox->cScreens; ++j)
|
|---|
| 69 | {
|
|---|
| 70 | /* Just continue quietly if VBVA is not currently active. */
|
|---|
| 71 | struct VBVABUFFER *pVBVA = pVBox->pScreens[j].aVbvaCtx.pVBVA;
|
|---|
| 72 | if ( !pVBVA
|
|---|
| 73 | || !(pVBVA->hostFlags.u32HostEvents & VBVA_F_MODE_ENABLED))
|
|---|
| 74 | continue;
|
|---|
| 75 | for (i = 0; i < iRects; ++i)
|
|---|
| 76 | {
|
|---|
| 77 | if ( aRects[i].x1 > pVBox->pScreens[j].aScreenLocation.x
|
|---|
| 78 | + pVBox->pScreens[j].aScreenLocation.cx
|
|---|
| 79 | || aRects[i].y1 > pVBox->pScreens[j].aScreenLocation.y
|
|---|
| 80 | + pVBox->pScreens[j].aScreenLocation.cy
|
|---|
| 81 | || aRects[i].x2 < pVBox->pScreens[j].aScreenLocation.x
|
|---|
| 82 | || aRects[i].y2 < pVBox->pScreens[j].aScreenLocation.y)
|
|---|
| 83 | continue;
|
|---|
| 84 | cmdHdr.x = (int16_t)aRects[i].x1 - pVBox->pScreens[0].aScreenLocation.x;
|
|---|
| 85 | cmdHdr.y = (int16_t)aRects[i].y1 - pVBox->pScreens[0].aScreenLocation.y;
|
|---|
| 86 | cmdHdr.w = (uint16_t)(aRects[i].x2 - aRects[i].x1);
|
|---|
| 87 | cmdHdr.h = (uint16_t)(aRects[i].y2 - aRects[i].y1);
|
|---|
| 88 |
|
|---|
| 89 | #if 0
|
|---|
| 90 | TRACE_LOG("display=%u, x=%d, y=%d, w=%d, h=%d\n",
|
|---|
| 91 | j, cmdHdr.x, cmdHdr.y, cmdHdr.w, cmdHdr.h);
|
|---|
| 92 | #endif
|
|---|
| 93 |
|
|---|
| 94 | if (VBoxVBVABufferBeginUpdate(&pVBox->pScreens[j].aVbvaCtx,
|
|---|
| 95 | &pVBox->guestCtx))
|
|---|
| 96 | {
|
|---|
| 97 | VBoxVBVAWrite(&pVBox->pScreens[j].aVbvaCtx, &pVBox->guestCtx, &cmdHdr,
|
|---|
| 98 | sizeof(cmdHdr));
|
|---|
| 99 | VBoxVBVABufferEndUpdate(&pVBox->pScreens[j].aVbvaCtx);
|
|---|
| 100 | }
|
|---|
| 101 | }
|
|---|
| 102 | }
|
|---|
| 103 | }
|
|---|
| 104 |
|
|---|
| 105 | static DECLCALLBACK(void *) hgsmiEnvAlloc(void *pvEnv, HGSMISIZE cb)
|
|---|
| 106 | {
|
|---|
| 107 | RT_NOREF(pvEnv);
|
|---|
| 108 | return calloc(1, cb);
|
|---|
| 109 | }
|
|---|
| 110 |
|
|---|
| 111 | static DECLCALLBACK(void) hgsmiEnvFree(void *pvEnv, void *pv)
|
|---|
| 112 | {
|
|---|
| 113 | RT_NOREF(pvEnv);
|
|---|
| 114 | free(pv);
|
|---|
| 115 | }
|
|---|
| 116 |
|
|---|
| 117 | static HGSMIENV g_hgsmiEnv =
|
|---|
| 118 | {
|
|---|
| 119 | NULL,
|
|---|
| 120 | hgsmiEnvAlloc,
|
|---|
| 121 | hgsmiEnvFree
|
|---|
| 122 | };
|
|---|
| 123 |
|
|---|
| 124 | /**
|
|---|
| 125 | * Calculate the location in video RAM of and initialise the heap for guest to
|
|---|
| 126 | * host messages.
|
|---|
| 127 | */
|
|---|
| 128 | void vbvxSetUpHGSMIHeapInGuest(VBOXPtr pVBox, uint32_t cbVRAM)
|
|---|
| 129 | {
|
|---|
| 130 | int rc;
|
|---|
| 131 | uint32_t offVRAMBaseMapping, offGuestHeapMemory, cbGuestHeapMemory;
|
|---|
| 132 | void *pvGuestHeapMemory;
|
|---|
| 133 |
|
|---|
| 134 | VBoxHGSMIGetBaseMappingInfo(cbVRAM, &offVRAMBaseMapping, NULL, &offGuestHeapMemory, &cbGuestHeapMemory, NULL);
|
|---|
| 135 | pvGuestHeapMemory = ((uint8_t *)pVBox->base) + offVRAMBaseMapping + offGuestHeapMemory;
|
|---|
| 136 | rc = VBoxHGSMISetupGuestContext(&pVBox->guestCtx, pvGuestHeapMemory, cbGuestHeapMemory,
|
|---|
| 137 | offVRAMBaseMapping + offGuestHeapMemory, &g_hgsmiEnv);
|
|---|
| 138 | AssertMsg(RT_SUCCESS(rc), ("Failed to set up the guest-to-host message buffer heap, rc=%d\n", rc));
|
|---|
| 139 | pVBox->cbView = offVRAMBaseMapping;
|
|---|
| 140 | }
|
|---|
| 141 |
|
|---|
| 142 | /** Callback to fill in the view structures */
|
|---|
| 143 | static DECLCALLBACK(int) vboxFillViewInfo(void *pvVBox, struct VBVAINFOVIEW *pViews, uint32_t cViews)
|
|---|
| 144 | {
|
|---|
| 145 | VBOXPtr pVBox = (VBOXPtr)pvVBox;
|
|---|
| 146 | unsigned i;
|
|---|
| 147 | for (i = 0; i < cViews; ++i)
|
|---|
| 148 | {
|
|---|
| 149 | pViews[i].u32ViewIndex = i;
|
|---|
| 150 | pViews[i].u32ViewOffset = 0;
|
|---|
| 151 | pViews[i].u32ViewSize = pVBox->cbView;
|
|---|
| 152 | pViews[i].u32MaxScreenSize = pVBox->cbFBMax;
|
|---|
| 153 | }
|
|---|
| 154 | return VINF_SUCCESS;
|
|---|
| 155 | }
|
|---|
| 156 |
|
|---|
| 157 | /**
|
|---|
| 158 | * Initialise VirtualBox's accelerated video extensions.
|
|---|
| 159 | *
|
|---|
| 160 | * @returns TRUE on success, FALSE on failure
|
|---|
| 161 | */
|
|---|
| 162 | static Bool vboxSetupVRAMVbva(VBOXPtr pVBox)
|
|---|
| 163 | {
|
|---|
| 164 | int rc = VINF_SUCCESS;
|
|---|
| 165 | unsigned i;
|
|---|
| 166 |
|
|---|
| 167 | pVBox->cbFBMax = pVBox->cbView;
|
|---|
| 168 | for (i = 0; i < pVBox->cScreens; ++i)
|
|---|
| 169 | {
|
|---|
| 170 | pVBox->cbFBMax -= VBVA_MIN_BUFFER_SIZE;
|
|---|
| 171 | pVBox->pScreens[i].aoffVBVABuffer = pVBox->cbFBMax;
|
|---|
| 172 | TRACE_LOG("VBVA buffer offset for screen %u: 0x%lx\n", i,
|
|---|
| 173 | (unsigned long) pVBox->cbFBMax);
|
|---|
| 174 | VBoxVBVASetupBufferContext(&pVBox->pScreens[i].aVbvaCtx,
|
|---|
| 175 | pVBox->pScreens[i].aoffVBVABuffer,
|
|---|
| 176 | VBVA_MIN_BUFFER_SIZE);
|
|---|
| 177 | }
|
|---|
| 178 | TRACE_LOG("Maximum framebuffer size: %lu (0x%lx)\n",
|
|---|
| 179 | (unsigned long) pVBox->cbFBMax,
|
|---|
| 180 | (unsigned long) pVBox->cbFBMax);
|
|---|
| 181 | rc = VBoxHGSMISendViewInfo(&pVBox->guestCtx, pVBox->cScreens,
|
|---|
| 182 | vboxFillViewInfo, (void *)pVBox);
|
|---|
| 183 | AssertMsg(RT_SUCCESS(rc), ("Failed to send the view information to the host, rc=%d\n", rc));
|
|---|
| 184 | return TRUE;
|
|---|
| 185 | }
|
|---|
| 186 |
|
|---|
| 187 | static Bool haveHGSMIModeHintAndCursorReportingInterface(VBOXPtr pVBox)
|
|---|
| 188 | {
|
|---|
| 189 | uint32_t fModeHintReporting, fCursorReporting;
|
|---|
| 190 |
|
|---|
| 191 | return RT_SUCCESS(VBoxQueryConfHGSMI(&pVBox->guestCtx, VBOX_VBVA_CONF32_MODE_HINT_REPORTING, &fModeHintReporting))
|
|---|
| 192 | && RT_SUCCESS(VBoxQueryConfHGSMI(&pVBox->guestCtx, VBOX_VBVA_CONF32_GUEST_CURSOR_REPORTING, &fCursorReporting))
|
|---|
| 193 | && fModeHintReporting == VINF_SUCCESS
|
|---|
| 194 | && fCursorReporting == VINF_SUCCESS;
|
|---|
| 195 | }
|
|---|
| 196 |
|
|---|
| 197 | static Bool hostHasScreenBlankingFlag(VBOXPtr pVBox)
|
|---|
| 198 | {
|
|---|
| 199 | uint32_t fScreenFlags;
|
|---|
| 200 |
|
|---|
| 201 | return RT_SUCCESS(VBoxQueryConfHGSMI(&pVBox->guestCtx, VBOX_VBVA_CONF32_SCREEN_FLAGS, &fScreenFlags))
|
|---|
| 202 | && fScreenFlags & VBVA_SCREEN_F_BLANK;
|
|---|
| 203 | }
|
|---|
| 204 |
|
|---|
| 205 | /**
|
|---|
| 206 | * Inform VBox that we will supply it with dirty rectangle information
|
|---|
| 207 | * and install the dirty rectangle handler.
|
|---|
| 208 | *
|
|---|
| 209 | * @returns TRUE for success, FALSE for failure
|
|---|
| 210 | * @param pScrn Pointer to a structure describing the X screen in use
|
|---|
| 211 | */
|
|---|
| 212 | Bool
|
|---|
| 213 | vboxEnableVbva(ScrnInfoPtr pScrn)
|
|---|
| 214 | {
|
|---|
| 215 | Bool rc = TRUE;
|
|---|
| 216 | unsigned i;
|
|---|
| 217 | VBOXPtr pVBox = pScrn->driverPrivate;
|
|---|
| 218 |
|
|---|
| 219 | TRACE_ENTRY();
|
|---|
| 220 | if (!vboxSetupVRAMVbva(pVBox))
|
|---|
| 221 | return FALSE;
|
|---|
| 222 | for (i = 0; i < pVBox->cScreens; ++i)
|
|---|
| 223 | {
|
|---|
| 224 | struct VBVABUFFER *pVBVA;
|
|---|
| 225 |
|
|---|
| 226 | pVBVA = (struct VBVABUFFER *) ( ((uint8_t *)pVBox->base)
|
|---|
| 227 | + pVBox->pScreens[i].aoffVBVABuffer);
|
|---|
| 228 | if (!VBoxVBVAEnable(&pVBox->pScreens[i].aVbvaCtx, &pVBox->guestCtx,
|
|---|
| 229 | pVBVA, i))
|
|---|
| 230 | rc = FALSE;
|
|---|
| 231 | }
|
|---|
| 232 | AssertMsg(rc, ("Failed to enable screen update reporting for at least one virtual monitor.\n"));
|
|---|
| 233 | pVBox->fHaveHGSMIModeHints = haveHGSMIModeHintAndCursorReportingInterface(pVBox);
|
|---|
| 234 | pVBox->fHostHasScreenBlankingFlag = hostHasScreenBlankingFlag(pVBox);
|
|---|
| 235 | return rc;
|
|---|
| 236 | }
|
|---|
| 237 |
|
|---|
| 238 | /**
|
|---|
| 239 | * Inform VBox that we will stop supplying it with dirty rectangle
|
|---|
| 240 | * information. This function is intended to be called when an X
|
|---|
| 241 | * virtual terminal is disabled, or the X server is terminated.
|
|---|
| 242 | *
|
|---|
| 243 | * @param pScrn Pointer to a structure describing the X screen in use
|
|---|
| 244 | */
|
|---|
| 245 | void
|
|---|
| 246 | vboxDisableVbva(ScrnInfoPtr pScrn)
|
|---|
| 247 | {
|
|---|
| 248 | unsigned i;
|
|---|
| 249 | VBOXPtr pVBox = pScrn->driverPrivate;
|
|---|
| 250 |
|
|---|
| 251 | TRACE_ENTRY();
|
|---|
| 252 | for (i = 0; i < pVBox->cScreens; ++i)
|
|---|
| 253 | VBoxVBVADisable(&pVBox->pScreens[i].aVbvaCtx, &pVBox->guestCtx, i);
|
|---|
| 254 | }
|
|---|
