FramebufferImpl.cpp revision 65a24a6d074ca3422fd58830484323b3fd8096b2
/** @file
*
* VirtualBox COM class implementation
*/
/*
* Copyright (C) 2006-2007 Sun Microsystems, Inc.
*
* 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.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 USA or visit http://www.sun.com if you need
* additional information or have any questions.
*/
#include "FramebufferImpl.h"
#include <iprt/semaphore.h>
// constructor / destructor
/////////////////////////////////////////////////////////////////////////////
InternalFramebuffer::InternalFramebuffer()
{
mData = NULL;
RTSemMutexCreate(&mMutex);
}
InternalFramebuffer::~InternalFramebuffer()
{
RTSemMutexDestroy(mMutex);
if (mData)
delete mData;
}
// public methods only for internal purposes
/////////////////////////////////////////////////////////////////////////////
HRESULT InternalFramebuffer::init(ULONG width, ULONG height, ULONG depth)
{
mWidth = width;
mHeight = height;
mBitsPerPixel = depth;
mBytesPerLine = ((width * depth + 31) / 32) * 4;
mData = new uint8_t [mBytesPerLine * height];
memset (mData, 0, mBytesPerLine * height);
return S_OK;
}
// IFramebuffer properties
/////////////////////////////////////////////////////////////////////////////
STDMETHODIMP InternalFramebuffer::COMGETTER(Address) (BYTE **address)
{
if (!address)
return E_POINTER;
*address = mData;
return S_OK;
}
STDMETHODIMP InternalFramebuffer::COMGETTER(Width) (ULONG *width)
{
if (!width)
return E_POINTER;
*width = mWidth;
return S_OK;
}
STDMETHODIMP InternalFramebuffer::COMGETTER(Height) (ULONG *height)
{
if (!height)
return E_POINTER;
*height = mHeight;
return S_OK;
}
STDMETHODIMP InternalFramebuffer::COMGETTER(BitsPerPixel) (ULONG *bitsPerPixel)
{
if (!bitsPerPixel)
return E_POINTER;
*bitsPerPixel = mBitsPerPixel;
return S_OK;
}
STDMETHODIMP InternalFramebuffer::COMGETTER(BytesPerLine) (ULONG *bytesPerLine)
{
if (!bytesPerLine)
return E_POINTER;
*bytesPerLine = mBytesPerLine;
return S_OK;
}
STDMETHODIMP InternalFramebuffer::COMGETTER(PixelFormat) (ULONG *pixelFormat)
{
if (!pixelFormat)
return E_POINTER;
*pixelFormat = FramebufferPixelFormat_FOURCC_RGB;
return S_OK;
}
STDMETHODIMP InternalFramebuffer::COMGETTER(UsesGuestVRAM) (BOOL *usesGuestVRAM)
{
if (!usesGuestVRAM)
return E_POINTER;
*usesGuestVRAM = FALSE;
return S_OK;
}
STDMETHODIMP InternalFramebuffer::COMGETTER(HeightReduction) (ULONG *heightReduction)
{
if (!heightReduction)
return E_POINTER;
/* no reduction */
*heightReduction = 0;
return S_OK;
}
STDMETHODIMP InternalFramebuffer::COMGETTER(Overlay) (IFramebufferOverlay **aOverlay)
{
if (!aOverlay)
return E_POINTER;
/* no overlay */
*aOverlay = 0;
return S_OK;
}
STDMETHODIMP InternalFramebuffer::COMGETTER(WinId) (ULONG64 *winId)
{
if (!winId)
return E_POINTER;
*winId = 0;
return S_OK;
}
// IFramebuffer methods
/////////////////////////////////////////////////////////////////////////////
STDMETHODIMP InternalFramebuffer::Lock()
{
RTSemMutexRequest(mMutex, RT_INDEFINITE_WAIT);
return S_OK;
}
STDMETHODIMP InternalFramebuffer::Unlock()
{
RTSemMutexRelease(mMutex);
return S_OK;
}
STDMETHODIMP InternalFramebuffer::NotifyUpdate(ULONG x, ULONG y,
ULONG w, ULONG h,
BOOL *finished)
{
if (!finished)
return E_POINTER;
// no need for the caller to wait
*finished = true;
return S_OK;
}
STDMETHODIMP
InternalFramebuffer::RequestResize(ULONG iScreenId, ULONG pixelFormat, BYTE *vram,
ULONG bpp, ULONG bpl, ULONG w, ULONG h,
BOOL *finished)
{
NOREF (bpp);
NOREF (bpl);
if (!finished)
return E_POINTER;
// no need for the caller to wait
*finished = true;
// allocate a new buffer
delete mData;
mWidth = w;
mHeight = h;
mBytesPerLine = ((w * mBitsPerPixel + 31) / 32) * 4;
mData = new uint8_t [mBytesPerLine * h];
memset (mData, 0, mBytesPerLine * h);
return S_OK;
}
STDMETHODIMP InternalFramebuffer::OperationSupported(FramebufferAccelerationOperation_T operation,
BOOL *supported)
{
if (!supported)
return E_POINTER;
/* no acceleration please, we're a slow fallback implementation! */
*supported = false;
return S_OK;
}
STDMETHODIMP InternalFramebuffer::VideoModeSupported(ULONG width, ULONG height, ULONG bpp,
BOOL *supported)
{
if (!supported)
return E_POINTER;
/* whatever you want! */
*supported = true;
return S_OK;
}
STDMETHODIMP InternalFramebuffer::SolidFill(ULONG x, ULONG y, ULONG width, ULONG height,
ULONG color, BOOL *handled)
{
if (!handled)
return E_POINTER;
/* eek, what do you expect from us?! */
*handled = false;
return S_OK;
}
STDMETHODIMP InternalFramebuffer::CopyScreenBits(ULONG xDst, ULONG yDst, ULONG xSrc, ULONG ySrc,
ULONG width, ULONG height, BOOL *handled)
{
if (!handled)
return E_POINTER;
/* eek, what do you expect from us?! */
*handled = false;
return S_OK;
}
STDMETHODIMP InternalFramebuffer::GetVisibleRegion(BYTE *aRectangles, ULONG aCount,
ULONG *aCountCopied)
{
PRTRECT rects = (PRTRECT)aRectangles;
if (!rects)
return E_POINTER;
/// @todo
NOREF(rects);
NOREF(aCount);
NOREF(aCountCopied);
return S_OK;
}
STDMETHODIMP InternalFramebuffer::SetVisibleRegion(BYTE *aRectangles, ULONG aCount)
{
PRTRECT rects = (PRTRECT)aRectangles;
if (!rects)
return E_POINTER;
/// @todo
NOREF(rects);
NOREF(aCount);
return S_OK;
}