VBoxGuestR3LibVideo.cpp revision 9fc58edfe4464fca24d4a064b9d3fe2ed173a71a
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync/* $Id$ */
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync/** @file
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * VBoxGuestR3Lib - Ring-3 Support Library for VirtualBox guest additions, Video.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync */
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync/*
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * Copyright (C) 2007-2012 Oracle Corporation
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * available from http://www.virtualbox.org. This file is free software;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * you can redistribute it and/or modify it under the terms of the GNU
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * General Public License (GPL) as published by the Free Software
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * The contents of this file may alternatively be used under the terms
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * of the Common Development and Distribution License Version 1.0
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * VirtualBox OSE distribution, in which case the provisions of the
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * CDDL are applicable instead of those of the GPL.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * You may elect to license modified versions of this file under the
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * terms and conditions of either the GPL or the CDDL or both.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync */
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync/*******************************************************************************
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync* Header Files *
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync*******************************************************************************/
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync#include "VBGLR3Internal.h"
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync#include <VBox/log.h>
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync#include <VBox/HostServices/GuestPropertySvc.h> /* For Save and RetrieveVideoMode */
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync#include <iprt/assert.h>
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync#if !defined(VBOX_VBGLR3_XFREE86) && !defined(VBOX_VBGLR3_XORG)
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync# include <iprt/mem.h>
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync#endif
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync#include <iprt/string.h>
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync#include <stdio.h>
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync#ifdef VBOX_VBGLR3_XFREE86
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync/* Rather than try to resolve all the header file conflicts, I will just
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync prototype what we need here. */
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsyncextern "C" void* xf86memcpy(void*,const void*,xf86size_t);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync# undef memcpy
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync# define memcpy xf86memcpy
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsyncextern "C" void* xf86memset(const void*,int,xf86size_t);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync# undef memset
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync# define memset xf86memset
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync#endif /* VBOX_VBGLR3_XFREE86 */
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync#define VIDEO_PROP_PREFIX "/VirtualBox/GuestAdd/Vbgl/Video/"
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync/**
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * Enable or disable video acceleration.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @returns VBox status code.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param fEnable Pass zero to disable, any other value to enable.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync */
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsyncVBGLR3DECL(int) VbglR3VideoAccelEnable(bool fEnable)
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync{
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync VMMDevVideoAccelEnable Req;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync vmmdevInitRequest(&Req.header, VMMDevReq_VideoAccelEnable);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync Req.u32Enable = fEnable;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync Req.cbRingBuffer = VBVA_RING_BUFFER_SIZE;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync Req.fu32Status = 0;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync return vbglR3GRPerform(&Req.header);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync}
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync/**
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * Flush the video buffer.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @returns VBox status code.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync */
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsyncVBGLR3DECL(int) VbglR3VideoAccelFlush(void)
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync{
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync VMMDevVideoAccelFlush Req;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync vmmdevInitRequest(&Req.header, VMMDevReq_VideoAccelFlush);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync return vbglR3GRPerform(&Req.header);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync}
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync/**
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * Send mouse pointer shape information to the host.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @returns VBox status code.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param fFlags Mouse pointer flags.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param xHot X coordinate of hot spot.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param yHot Y coordinate of hot spot.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param cx Pointer width.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param cy Pointer height.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param pvImg Pointer to the image data (can be NULL).
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param cbImg Size of the image data pointed to by pvImg.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync */
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsyncVBGLR3DECL(int) VbglR3SetPointerShape(uint32_t fFlags, uint32_t xHot, uint32_t yHot, uint32_t cx, uint32_t cy, const void *pvImg, size_t cbImg)
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync{
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync VMMDevReqMousePointer *pReq;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync size_t cbReq = vmmdevGetMousePointerReqSize(cx, cy);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync AssertReturn( !pvImg
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync || cbReq == RT_OFFSETOF(VMMDevReqMousePointer, pointerData) + cbImg,
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync VERR_INVALID_PARAMETER);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync int rc = vbglR3GRAlloc((VMMDevRequestHeader **)&pReq, cbReq,
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync VMMDevReq_SetPointerShape);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync if (RT_SUCCESS(rc))
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync {
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync pReq->fFlags = fFlags;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync pReq->xHot = xHot;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync pReq->yHot = yHot;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync pReq->width = cx;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync pReq->height = cy;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync if (pvImg)
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync memcpy(pReq->pointerData, pvImg, cbImg);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync rc = vbglR3GRPerform(&pReq->header);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync if (RT_SUCCESS(rc))
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync rc = pReq->header.rc;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync vbglR3GRFree(&pReq->header);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync }
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync return rc;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync}
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync/**
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * Send mouse pointer shape information to the host.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * This version of the function accepts a request for clients that
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * already allocate and manipulate the request structure directly.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @returns VBox status code.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param pReq Pointer to the VMMDevReqMousePointer structure.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync */
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsyncVBGLR3DECL(int) VbglR3SetPointerShapeReq(VMMDevReqMousePointer *pReq)
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync{
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync int rc = vbglR3GRPerform(&pReq->header);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync if (RT_SUCCESS(rc))
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync rc = pReq->header.rc;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync return rc;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync}
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync/**
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * Query the last display change request sent from the host to the guest.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @returns iprt status value
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param pcx Where to store the horizontal pixel resolution
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param pcy Where to store the vertical pixel resolution
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * requested (a value of zero means do not change).
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param pcBits Where to store the bits per pixel requested (a value
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * of zero means do not change).
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param iDisplay Where to store the display number the request was for
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * - 0 for the primary display, 1 for the first
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * secondary display, etc.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param fAck whether or not to acknowledge the newest request sent by
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * the host. If this is set, the function will return the
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * most recent host request, otherwise it will return the
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * last request to be acknowledged.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync */
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsyncstatic int getDisplayChangeRequest2(uint32_t *pcx, uint32_t *pcy,
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync uint32_t *pcBits, uint32_t *piDisplay,
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync bool fAck)
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync{
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync VMMDevDisplayChangeRequest2 Req;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync AssertPtrReturn(pcx, VERR_INVALID_PARAMETER);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync AssertPtrReturn(pcy, VERR_INVALID_PARAMETER);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync AssertPtrReturn(pcBits, VERR_INVALID_PARAMETER);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync AssertPtrReturn(piDisplay, VERR_INVALID_PARAMETER);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync RT_ZERO(Req);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync vmmdevInitRequest(&Req.header, VMMDevReq_GetDisplayChangeRequest2);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync if (fAck)
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync Req.eventAck = VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync int rc = vbglR3GRPerform(&Req.header);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync if (RT_SUCCESS(rc))
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync rc = Req.header.rc;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync if (RT_SUCCESS(rc))
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync {
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *pcx = Req.xres;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *pcy = Req.yres;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *pcBits = Req.bpp;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *piDisplay = Req.display;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync }
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync return rc;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync}
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync/**
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * Query the last display change request sent from the host to the guest.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @returns iprt status value
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param pcx Where to store the horizontal pixel resolution
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * requested (a value of zero means do not change).
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param pcy Where to store the vertical pixel resolution
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * requested (a value of zero means do not change).
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param pcBits Where to store the bits per pixel requested (a value
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * of zero means do not change).
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param piDisplay Where to store the display number the request was for
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * - 0 for the primary display, 1 for the first
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * secondary display, etc.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param fAck whether or not to acknowledge the newest request sent by
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * the host. If this is set, the function will return the
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * most recent host request, otherwise it will return the
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * last request to be acknowledged.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param pdx New horizontal position of the secondary monitor.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * Optional.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param pdy New vertical position of the secondary monitor.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * Optional.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * param pfEnabled Secondary monitor is enabled or not.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * Optional.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * param pfChangeOrigin Whether the mode hint retrieved included information
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * about origin/display offset inside the frame-buffer.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * Optional.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync */
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsyncVBGLR3DECL(int) VbglR3GetDisplayChangeRequest(uint32_t *pcx, uint32_t *pcy,
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync uint32_t *pcBits,
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync uint32_t *piDisplay,
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync uint32_t *pdx, uint32_t *pdy,
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync bool *pfEnabled,
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync bool *pfChangeOrigin,
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync bool fAck)
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync{
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync VMMDevDisplayChangeRequestEx Req;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync int rc = VINF_SUCCESS;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync AssertPtrReturn(pcx, VERR_INVALID_PARAMETER);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync AssertPtrReturn(pcy, VERR_INVALID_PARAMETER);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync AssertPtrReturn(pcBits, VERR_INVALID_PARAMETER);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync AssertPtrNullReturn(pdx, VERR_INVALID_PARAMETER);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync AssertPtrNullReturn(pdy, VERR_INVALID_PARAMETER);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync AssertPtrReturn(piDisplay, VERR_INVALID_PARAMETER);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync AssertPtrNullReturn(pfEnabled, VERR_INVALID_PARAMETER);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync AssertPtrNullReturn(pfChangeOrigin, VERR_INVALID_PARAMETER);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync RT_ZERO(Req);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync rc = vmmdevInitRequest(&Req.header, VMMDevReq_GetDisplayChangeRequestEx);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync AssertRCReturn(rc, rc);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync if (fAck)
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync Req.eventAck = VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync rc = vbglR3GRPerform(&Req.header);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync if (RT_SUCCESS(rc))
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync rc = Req.header.rc;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync if (RT_SUCCESS(rc))
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync {
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *pcx = Req.xres;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *pcy = Req.yres;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *pcBits = Req.bpp;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *piDisplay = Req.display;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync if (pdx)
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *pdx = Req.cxOrigin;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync if (pdy)
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *pdy = Req.cyOrigin;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync if (pfEnabled)
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *pfEnabled = Req.fEnabled;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync if (pfChangeOrigin)
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *pfChangeOrigin = Req.fChangeOrigin;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync }
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync /* NEEDS TESTING: test below with current Additions on VBox 4.1 or older. */
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync /** @todo Can we find some standard grep-able string for "NEEDS TESTING"? */
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync if (rc == VERR_NOT_IMPLEMENTED) /* Fall back to the old API. */
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync {
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync if (pfEnabled)
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *pfEnabled = true;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync if (pfChangeOrigin)
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *pfChangeOrigin = false;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync return getDisplayChangeRequest2(pcx, pcy, pcBits, piDisplay, fAck);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync }
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync return rc;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync}
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync/**
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * Query the host as to whether it likes a specific video mode.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @returns the result of the query
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param cx the width of the mode being queried
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param cy the height of the mode being queried
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param cBits the bpp of the mode being queried
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync */
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsyncVBGLR3DECL(bool) VbglR3HostLikesVideoMode(uint32_t cx, uint32_t cy, uint32_t cBits)
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync{
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync bool fRc = true; /* If for some reason we can't contact the host then
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * we like everything. */
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync int rc;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync VMMDevVideoModeSupportedRequest req;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync vmmdevInitRequest(&req.header, VMMDevReq_VideoModeSupported);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync req.width = cx;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync req.height = cy;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync req.bpp = cBits;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync req.fSupported = true;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync rc = vbglR3GRPerform(&req.header);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync if (RT_SUCCESS(rc) && RT_SUCCESS(req.header.rc))
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync fRc = req.fSupported;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync return fRc;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync}
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync/**
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * Get the highest screen number for which there is a saved video mode or "0"
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * if there are no saved modes.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @returns iprt status value
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param pcScreen where to store the virtual screen number
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync */
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsyncVBGLR3DECL(int) VbglR3VideoModeGetHighestSavedScreen(unsigned *pcScreen)
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync{
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync#if defined(VBOX_WITH_GUEST_PROPS)
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync using namespace guestProp;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync int rc, rc2 = VERR_UNRESOLVED_ERROR;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync uint32_t u32ClientId = 0;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync const char *pszPattern = VIDEO_PROP_PREFIX"*";
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync PVBGLR3GUESTPROPENUM pHandle = NULL;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync const char *pszName;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync unsigned cHighestScreen = 0;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync AssertPtrReturn(pcScreen, VERR_INVALID_POINTER);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync rc = VbglR3GuestPropConnect(&u32ClientId);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync if (RT_SUCCESS(rc))
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync rc = VbglR3GuestPropEnum(u32ClientId, &pszPattern, 1, &pHandle,
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync &pszName, NULL, NULL, NULL);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync if (u32ClientId != 0)
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync rc2 = VbglR3GuestPropDisconnect(u32ClientId);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync if (RT_SUCCESS(rc))
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync rc = rc2;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync while (pszName != NULL && RT_SUCCESS(rc))
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync {
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync uint32_t cScreen;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync rc = RTStrToUInt32Full(pszName + sizeof(VIDEO_PROP_PREFIX) - 1, 10,
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync &cScreen);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync if (RT_SUCCESS(rc)) /* There may be similar properties with text. */
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync cHighestScreen = RT_MAX(cHighestScreen, cScreen);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync rc = VbglR3GuestPropEnumNext(pHandle, &pszName, NULL, NULL, NULL);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync }
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync VbglR3GuestPropEnumFree(pHandle);
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync if (RT_SUCCESS(rc))
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *pcScreen = cHighestScreen;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync return rc;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync#else /* !VBOX_WITH_GUEST_PROPS */
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync return VERR_NOT_IMPLEMENTED;
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync#endif /* !VBOX_WITH_GUEST_PROPS */
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync}
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync/**
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * Save video mode parameters to the guest property store.
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync *
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @returns iprt status value
51a909d272137afafb6e48492caa2ed38c4c9f77vboxsync * @param cScreen virtual screen number
* @param cx mode width
* @param cy mode height
* @param cBits bits per pixel for the mode
* @param x virtual screen X offset
* @param y virtual screen Y offset
* @param fEnabled is this virtual screen enabled?
*/
VBGLR3DECL(int) VbglR3SaveVideoMode(unsigned cScreen, unsigned cx, unsigned cy,
unsigned cBits, unsigned x, unsigned y,
bool fEnabled)
{
#if defined(VBOX_WITH_GUEST_PROPS)
using namespace guestProp;
char szModeName[MAX_NAME_LEN];
char szModeParms[MAX_VALUE_LEN];
uint32_t u32ClientId = 0;
unsigned cx2, cy2, cBits2, x2, y2, cHighestScreen, cHighestScreen2;
bool fEnabled2;
int rc, rc2 = VERR_UNRESOLVED_ERROR;
rc = VbglR3VideoModeGetHighestSavedScreen(&cHighestScreen);
RTStrPrintf(szModeName, sizeof(szModeName), VIDEO_PROP_PREFIX"%u", cScreen);
RTStrPrintf(szModeParms, sizeof(szModeParms), "%ux%ux%u,%ux%u,%u", cx, cy,
cBits, x, y, (unsigned) fEnabled);
if (RT_SUCCESS(rc))
rc = VbglR3GuestPropConnect(&u32ClientId);
if (RT_SUCCESS(rc))
rc = VbglR3GuestPropWriteValue(u32ClientId, szModeName, szModeParms);
if (u32ClientId != 0)
rc2 = VbglR3GuestPropDisconnect(u32ClientId);
if (RT_SUCCESS(rc))
rc = rc2;
/* Sanity check 1. We do not try to make allowance for someone else
* changing saved settings at the same time as us. */
if (RT_SUCCESS(rc))
{
rc = VbglR3RetrieveVideoMode(cScreen, &cx2, &cy2, &cBits2, &x2, &y2,
&fEnabled2);
if ( RT_SUCCESS(rc)
&& ( cx != cx2 || cy != cy2 || cBits != cBits2
|| x != x2 || y != y2 || fEnabled != fEnabled2))
rc = VERR_WRITE_ERROR;
}
/* Sanity check 2. Same comment. */
if (RT_SUCCESS(rc))
rc = VbglR3VideoModeGetHighestSavedScreen(&cHighestScreen2);
if (RT_SUCCESS(rc))
if (cHighestScreen2 != RT_MAX(cHighestScreen, cScreen))
rc = VERR_INTERNAL_ERROR;
return rc;
#else /* !VBOX_WITH_GUEST_PROPS */
return VERR_NOT_IMPLEMENTED;
#endif /* !VBOX_WITH_GUEST_PROPS */
}
/**
* Retrieve video mode parameters from the guest property store.
*
* @returns iprt status value
* @param cScreen the virtual screen number
* @param pcx where to store the mode width
* @param pcy where to store the mode height
* @param pcBits where to store the bits per pixel for the mode
* @param px where to store the virtual screen X offset
* @param py where to store the virtual screen Y offset
* @param pfEnabled where to store whether this virtual screen is enabled
*/
VBGLR3DECL(int) VbglR3RetrieveVideoMode(unsigned cScreen,
unsigned *pcx, unsigned *pcy,
unsigned *pcBits,
unsigned *px, unsigned *py,
bool *pfEnabled)
{
#if defined(VBOX_WITH_GUEST_PROPS)
using namespace guestProp;
/*
* First we retrieve the video mode which is saved as a string in the
* guest property store.
*/
/* The buffer for VbglR3GuestPropReadValue. If this is too small then
* something is wrong with the data stored in the property. */
char szModeName[MAX_NAME_LEN];
char szModeParms[1024];
uint32_t u32ClientId = 0;
int cMatches;
unsigned cx, cy, cBits, x, y, fEnabled;
int rc, rc2 = VERR_UNRESOLVED_ERROR;
/** @todo add a VbglR3GuestPropReadValueF/FV that does the RTStrPrintf for you. */
RTStrPrintf(szModeName, sizeof(szModeName), VIDEO_PROP_PREFIX"%u", cScreen);
rc = VbglR3GuestPropConnect(&u32ClientId);
if (RT_SUCCESS(rc))
rc = VbglR3GuestPropReadValue(u32ClientId, szModeName, szModeParms,
sizeof(szModeParms), NULL);
if (u32ClientId != 0)
rc2 = VbglR3GuestPropDisconnect(u32ClientId);
if (RT_SUCCESS(rc))
rc = rc2;
/*
* Now we convert the string returned to numeric values.
*/
if (RT_SUCCESS(rc))
{
cMatches = sscanf(szModeParms, "%ux%ux%u,%ux%u,%u\n", &cx, &cy, &cBits,
&x, &y, &fEnabled);
if (cMatches == 6)
rc = VINF_SUCCESS;
else if (cMatches < 0)
rc = VERR_READ_ERROR;
else
rc = VERR_PARSE_ERROR;
}
/*
* And clean up and return the values if we successfully obtained them.
*/
if (RT_SUCCESS(rc))
{
if (pcx)
*pcx = cx;
if (pcy)
*pcy = cy;
if (pcBits)
*pcBits = cBits;
if (px)
*px = x;
if (py)
*py = y;
if (pfEnabled)
*pfEnabled = RT_BOOL(fEnabled);
}
return rc;
#else /* !VBOX_WITH_GUEST_PROPS */
return VERR_NOT_IMPLEMENTED;
#endif /* !VBOX_WITH_GUEST_PROPS */
}