/* | |
* Copyright (C) 2006, 2007, 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 "BitmapInfo.h" | |
#include "GraphicsContext.h" | |
#include "PlatformString.h" | |
#include <ApplicationServices/ApplicationServices.h> | |
#include <windows.h> | |
#include <wtf/RetainPtr.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; | |
RetainPtr<CGColorSpaceRef> deviceRGB(AdoptCF, CGColorSpaceCreateDeviceRGB()); | |
RetainPtr<CGContextRef> bitmapContext(AdoptCF, CGBitmapContextCreate(dibSection.dsBm.bmBits, dibSection.dsBm.bmWidth, dibSection.dsBm.bmHeight, 8, | |
dibSection.dsBm.bmWidthBytes, deviceRGB.get(), kCGBitmapByteOrder32Little | kCGImageAlphaPremultipliedFirst)); | |
// The BitmapImage takes ownership of this. | |
CGImageRef cgImage = CGBitmapContextCreateImage(bitmapContext.get()); | |
return adoptRef(new BitmapImage(cgImage)); | |
} | |
bool BitmapImage::getHBITMAPOfSize(HBITMAP bmp, LPSIZE size) | |
{ | |
ASSERT(bmp); | |
BITMAP bmpInfo; | |
GetObject(bmp, sizeof(BITMAP), &bmpInfo); | |
ASSERT(bmpInfo.bmBitsPixel == 32); | |
int bufferSize = bmpInfo.bmWidthBytes * bmpInfo.bmHeight; | |
CGColorSpaceRef deviceRGB = CGColorSpaceCreateDeviceRGB(); | |
CGContextRef cgContext = CGBitmapContextCreate(bmpInfo.bmBits, bmpInfo.bmWidth, bmpInfo.bmHeight, | |
8, bmpInfo.bmWidthBytes, deviceRGB, kCGBitmapByteOrder32Little | kCGImageAlphaPremultipliedFirst); | |
GraphicsContext gc(cgContext); | |
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 | |
CGContextRelease(cgContext); | |
CGColorSpaceRelease(deviceRGB); | |
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) { | |
CGImageRef image = frameAtIndex(i); | |
if (CGImageGetHeight(image) == static_cast<size_t>(srcSize.height()) && CGImageGetWidth(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()), styleColorSpace, 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()), styleColorSpace, compositeOp); | |
} | |
} // namespace WebCore |