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author | Upstream <upstream-import@none> | 1970-01-12 13:46:40 +0000 |
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committer | Upstream <upstream-import@none> | 1970-01-12 13:46:40 +0000 |
commit | d8543bb6618c17b12da906afa77d216f58cf4058 (patch) | |
tree | c58dc05ed86825bd0ef8d305d58c8205106b540f /WebCore/platform/graphics/win/ImageCairoWin.cpp | |
download | external_webkit-d8543bb6618c17b12da906afa77d216f58cf4058.zip external_webkit-d8543bb6618c17b12da906afa77d216f58cf4058.tar.gz external_webkit-d8543bb6618c17b12da906afa77d216f58cf4058.tar.bz2 |
external/webkit r30707
Diffstat (limited to 'WebCore/platform/graphics/win/ImageCairoWin.cpp')
-rw-r--r-- | WebCore/platform/graphics/win/ImageCairoWin.cpp | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/WebCore/platform/graphics/win/ImageCairoWin.cpp b/WebCore/platform/graphics/win/ImageCairoWin.cpp new file mode 100644 index 0000000..95bb7bc --- /dev/null +++ b/WebCore/platform/graphics/win/ImageCairoWin.cpp @@ -0,0 +1,89 @@ +/* + * 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 |