/* $Id: setmode.c 62530 2016-07-22 19:25:14Z vboxsync $ */ /** @file * Linux Additions X11 graphics driver, mode setting */ /* * Copyright (C) 2006-2016 Oracle Corporation * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License (GPL) as published by the Free Software * Foundation, in version 2 as it comes in the "COPYING" file of the * VirtualBox OSE distribution. VirtualBox OSE is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. * -------------------------------------------------------------------- * * This code is based on: * * X11 VESA driver * * Copyright (c) 2000 by Conectiva S.A. (http://www.conectiva.com) * * 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 * CONECTIVA LINUX 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. * * Except as contained in this notice, the name of Conectiva Linux shall * not be used in advertising or otherwise to promote the sale, use or other * dealings in this Software without prior written authorization from * Conectiva Linux. * * Authors: Paulo César Pereira de Andrade */ #ifdef XORG_7X /* We include for Solaris below, and the ANSI C emulation layer * interferes with that. */ # define _XF86_ANSIC_H # define XF86_LIBC_H # include #endif #include "vboxvideo.h" #include "version-generated.h" #include "product-generated.h" #include "xf86.h" /* VGA hardware functions for setting and restoring text mode */ #include "vgaHW.h" #ifdef RT_OS_SOLARIS # include # include # include # include # include #endif /** Clear the virtual framebuffer in VRAM. Optionally also clear up to the * size of a new framebuffer. Framebuffer sizes larger than available VRAM * be treated as zero and passed over. */ void vbvxClearVRAM(ScrnInfoPtr pScrn, size_t cbOldSize, size_t cbNewSize) { VBOXPtr pVBox = VBOXGetRec(pScrn); /* Assume 32BPP - this is just a sanity test. */ VBVXASSERT( cbOldSize / 4 <= VBOX_VIDEO_MAX_VIRTUAL * VBOX_VIDEO_MAX_VIRTUAL && cbNewSize / 4 <= VBOX_VIDEO_MAX_VIRTUAL * VBOX_VIDEO_MAX_VIRTUAL, ("cbOldSize=%llu cbNewSize=%llu, max=%u.\n", (unsigned long long)cbOldSize, (unsigned long long)cbNewSize, VBOX_VIDEO_MAX_VIRTUAL * VBOX_VIDEO_MAX_VIRTUAL)); if (cbOldSize > (size_t)pVBox->cbFBMax) cbOldSize = pVBox->cbFBMax; if (cbNewSize > (size_t)pVBox->cbFBMax) cbNewSize = pVBox->cbFBMax; memset(pVBox->base, 0, max(cbOldSize, cbNewSize)); } /** Set a graphics mode. Poke any required values into registers, do an HGSMI * mode set and tell the host we support advanced graphics functions. */ void vbvxSetMode(ScrnInfoPtr pScrn, unsigned cDisplay, unsigned cWidth, unsigned cHeight, int x, int y, bool fEnabled, bool fConnected, struct vbvxFrameBuffer *pFrameBuffer) { VBOXPtr pVBox = VBOXGetRec(pScrn); uint32_t offStart; uint16_t fFlags; int rc; bool fEnabledAndVisible = fEnabled && x + cWidth <= pFrameBuffer->cWidth && y + cHeight <= pFrameBuffer->cHeight; /* Recent host code has a flag to blank the screen; older code needs BPP set to zero. */ uint32_t cBPP = fEnabledAndVisible || pVBox->fHostHasScreenBlankingFlag ? pFrameBuffer->cBPP : 0; TRACE_LOG("cDisplay=%u, cWidth=%u, cHeight=%u, x=%d, y=%d, fEnabled=%d, fConnected=%d, pFrameBuffer: { x0=%d, y0=%d, cWidth=%u, cHeight=%u, cBPP=%u }\n", cDisplay, cWidth, cHeight, x, y, fEnabled, fConnected, pFrameBuffer->x0, pFrameBuffer->y0, pFrameBuffer->cWidth, pFrameBuffer->cHeight, pFrameBuffer->cBPP); VBVXASSERT(cWidth != 0 && cHeight != 0, ("cWidth = 0 or cHeight = 0\n")); offStart = (y * pFrameBuffer->cWidth + x) * pFrameBuffer->cBPP / 8; if (cDisplay == 0 && fEnabled) VBoxVideoSetModeRegisters(cWidth, cHeight, pFrameBuffer->cWidth, pFrameBuffer->cBPP, 0, x, y); fFlags = VBVA_SCREEN_F_ACTIVE; fFlags |= (fConnected ? 0 : VBVA_SCREEN_F_DISABLED); fFlags |= (!fEnabledAndVisible && pVBox->fHostHasScreenBlankingFlag ? VBVA_SCREEN_F_BLANK : 0); VBoxHGSMIProcessDisplayInfo(&pVBox->guestCtx, cDisplay, x - pFrameBuffer->x0, y - pFrameBuffer->y0, offStart, pFrameBuffer->cWidth * pFrameBuffer->cBPP / 8, cWidth, cHeight, cBPP, fFlags); rc = VBoxHGSMIUpdateInputMapping(&pVBox->guestCtx, 0 - pFrameBuffer->x0, 0 - pFrameBuffer->y0, pFrameBuffer->cWidth, pFrameBuffer->cHeight); if (RT_FAILURE(rc)) FatalError("Failed to update the input mapping.\n"); } /** Tell the virtual mouse device about the new virtual desktop size. */ void vbvxSetSolarisMouseRange(int width, int height) { #ifdef RT_OS_SOLARIS int rc; int hMouse = open("/dev/mouse", O_RDWR); if (hMouse >= 0) { do { Ms_screen_resolution Res = { height, width }; rc = ioctl(hMouse, MSIOSRESOLUTION, &Res); } while ((rc != 0) && (errno == EINTR)); close(hMouse); } #else (void)width; (void)height; #endif }