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/*
* Copyright (C) 2008 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "Image.h"
#include "BitmapImage.h"
#include "GraphicsContext.h"
#include <cairo.h>
#include <windows.h>
#include "PlatformString.h"
namespace WebCore {
bool BitmapImage::getHBITMAPOfSize(HBITMAP bmp, LPSIZE size)
{
ASSERT(bmp);
BITMAP bmpInfo;
GetObject(bmp, sizeof(BITMAP), &bmpInfo);
// If this is a 32bpp bitmap, which it always should be, we'll clear it so alpha-wise it will be visible
if (bmpInfo.bmBitsPixel == 32) {
int bufferSize = bmpInfo.bmWidthBytes * bmpInfo.bmHeight;
memset(bmpInfo.bmBits, 255, bufferSize);
}
HDC tempDC = CreateCompatibleDC(0);
if (!tempDC) {
LOG_ERROR("Failed to create in-memory DC for Image::blit()");
return false;
}
SelectObject(tempDC, bmp);
GraphicsContext gc(tempDC);
IntSize imageSize = BitmapImage::size();
if (size)
drawFrameMatchingSourceSize(&gc, FloatRect(0.0f, 0.0f, bmpInfo.bmWidth, bmpInfo.bmHeight), IntSize(*size), CompositeCopy);
else
draw(&gc, FloatRect(0.0f, 0.0f, bmpInfo.bmWidth, bmpInfo.bmHeight), FloatRect(0.0f, 0.0f, imageSize.width(), imageSize.height()), CompositeCopy);
// Do cleanup
DeleteDC(tempDC);
return true;
}
void BitmapImage::drawFrameMatchingSourceSize(GraphicsContext* ctxt, const FloatRect& dstRect, const IntSize& srcSize, CompositeOperator compositeOp)
{
int frames = frameCount();
for (int i = 0; i < frames; ++i) {
cairo_surface_t* image = frameAtIndex(i);
if (cairo_image_surface_get_height(image) == static_cast<size_t>(srcSize.height()) && cairo_image_surface_get_width(image) == static_cast<size_t>(srcSize.width())) {
size_t currentFrame = m_currentFrame;
m_currentFrame = i;
draw(ctxt, dstRect, FloatRect(0.0f, 0.0f, srcSize.width(), srcSize.height()), compositeOp);
m_currentFrame = currentFrame;
return;
}
}
// No image of the correct size was found, fallback to drawing the current frame
IntSize imageSize = BitmapImage::size();
draw(ctxt, dstRect, FloatRect(0.0f, 0.0f, imageSize.width(), imageSize.height()), compositeOp);
}
} // namespace WebCore
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