diff options
Diffstat (limited to 'src/3rdparty/webkit/WebCore/platform/graphics/win/ImageCairoWin.cpp')
-rw-r--r-- | src/3rdparty/webkit/WebCore/platform/graphics/win/ImageCairoWin.cpp | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/WebCore/platform/graphics/win/ImageCairoWin.cpp b/src/3rdparty/webkit/WebCore/platform/graphics/win/ImageCairoWin.cpp new file mode 100644 index 0000000000..e3c5ea03d6 --- /dev/null +++ b/src/3rdparty/webkit/WebCore/platform/graphics/win/ImageCairoWin.cpp @@ -0,0 +1,114 @@ +/* + * 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 <cairo-win32.h> + +#include <windows.h> +#include "PlatformString.h" + +namespace WebCore { + +PassRefPtr<BitmapImage> BitmapImage::create(HBITMAP hBitmap) +{ + DIBSECTION dibSection; + if (!GetObject(hBitmap, sizeof(DIBSECTION), &dibSection)) + return 0; + + ASSERT(dibSection.dsBm.bmBitsPixel == 32); + if (dibSection.dsBm.bmBitsPixel != 32) + return 0; + + ASSERT(dibSection.dsBm.bmBits); + if (!dibSection.dsBm.bmBits) + return 0; + + cairo_surface_t* image = cairo_win32_surface_create_with_dib (CAIRO_FORMAT_ARGB32, dibSection.dsBm.bmWidth, dibSection.dsBm.bmHeight); + + // The BitmapImage object takes over ownership of the cairo_surface_t*, so no need to destroy here. + return adoptRef(new BitmapImage(image)); +} + +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); + } + + cairo_surface_t* image = cairo_image_surface_create_for_data((unsigned char*)bmpInfo.bmBits, + CAIRO_FORMAT_ARGB32, + bmpInfo.bmWidth, + bmpInfo.bmHeight, + bmpInfo.bmWidthBytes); + + + cairo_t* targetRef = cairo_create(image); + cairo_surface_destroy(image); + + GraphicsContext gc(targetRef); + + IntSize imageSize = BitmapImage::size(); + if (size) + drawFrameMatchingSourceSize(&gc, FloatRect(0.0f, 0.0f, bmpInfo.bmWidth, bmpInfo.bmHeight), IntSize(*size), DeviceColorSpace, CompositeCopy); + else + draw(&gc, FloatRect(0.0f, 0.0f, bmpInfo.bmWidth, bmpInfo.bmHeight), FloatRect(0.0f, 0.0f, imageSize.width(), imageSize.height()), DeviceColorSpace, CompositeCopy); + + // Do cleanup + cairo_destroy(targetRef); + + return true; +} + +void BitmapImage::drawFrameMatchingSourceSize(GraphicsContext* ctxt, const FloatRect& dstRect, const IntSize& srcSize, ColorSpace styleColorSpace, CompositeOperator compositeOp) +{ + size_t frames = frameCount(); + for (size_t 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()), DeviceColorSpace, 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()), DeviceColorSpace, compositeOp); +} + +} // namespace WebCore |