1/* 2 * Copyright (C) 2006, 2007, 2008, 2013 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27#include "Image.h" 28 29#include "BitmapImage.h" 30#include "BitmapInfo.h" 31#include "GraphicsContextCG.h" 32#include <ApplicationServices/ApplicationServices.h> 33#include <windows.h> 34#include <wtf/RetainPtr.h> 35#include <wtf/text/WTFString.h> 36 37namespace WebCore { 38 39PassRefPtr<BitmapImage> BitmapImage::create(HBITMAP hBitmap) 40{ 41 DIBSECTION dibSection; 42 if (!GetObject(hBitmap, sizeof(DIBSECTION), &dibSection)) 43 return 0; 44 45 ASSERT(dibSection.dsBm.bmBitsPixel == 32); 46 if (dibSection.dsBm.bmBitsPixel != 32) 47 return 0; 48 49 ASSERT(dibSection.dsBm.bmBits); 50 if (!dibSection.dsBm.bmBits) 51 return 0; 52 53 RetainPtr<CGContextRef> bitmapContext = adoptCF(CGBitmapContextCreate(dibSection.dsBm.bmBits, dibSection.dsBm.bmWidth, dibSection.dsBm.bmHeight, 8, 54 dibSection.dsBm.bmWidthBytes, deviceRGBColorSpaceRef(), kCGBitmapByteOrder32Little | kCGImageAlphaPremultipliedFirst)); 55 56 // The BitmapImage takes ownership of this. 57 CGImageRef cgImage = CGBitmapContextCreateImage(bitmapContext.get()); 58 59 return adoptRef(new BitmapImage(cgImage)); 60} 61 62bool BitmapImage::getHBITMAPOfSize(HBITMAP bmp, const IntSize* size) 63{ 64 ASSERT(bmp); 65 66 BITMAP bmpInfo; 67 GetObject(bmp, sizeof(BITMAP), &bmpInfo); 68 69 ASSERT(bmpInfo.bmBitsPixel == 32); 70 int bufferSize = bmpInfo.bmWidthBytes * bmpInfo.bmHeight; 71 72 CGContextRef cgContext = CGBitmapContextCreate(bmpInfo.bmBits, bmpInfo.bmWidth, bmpInfo.bmHeight, 73 8, bmpInfo.bmWidthBytes, deviceRGBColorSpaceRef(), kCGBitmapByteOrder32Little | kCGImageAlphaPremultipliedFirst); 74 75 GraphicsContext gc(cgContext); 76 77 FloatSize imageSize = BitmapImage::size(); 78 if (size) 79 drawFrameMatchingSourceSize(&gc, FloatRect(0.0f, 0.0f, bmpInfo.bmWidth, bmpInfo.bmHeight), *size, ColorSpaceDeviceRGB, CompositeCopy); 80 else 81 draw(&gc, FloatRect(0.0f, 0.0f, bmpInfo.bmWidth, bmpInfo.bmHeight), FloatRect(0.0f, 0.0f, imageSize.width(), imageSize.height()), ColorSpaceDeviceRGB, CompositeCopy, BlendModeNormal, ImageOrientationDescription()); 82 83 // Do cleanup 84 CGContextRelease(cgContext); 85 86 return true; 87} 88 89void BitmapImage::drawFrameMatchingSourceSize(GraphicsContext* ctxt, const FloatRect& dstRect, const IntSize& srcSize, ColorSpace styleColorSpace, CompositeOperator compositeOp) 90{ 91 size_t frames = frameCount(); 92 for (size_t i = 0; i < frames; ++i) { 93 CGImageRef image = frameAtIndex(i); 94 if (image && CGImageGetHeight(image) == static_cast<size_t>(srcSize.height()) && CGImageGetWidth(image) == static_cast<size_t>(srcSize.width())) { 95 size_t currentFrame = m_currentFrame; 96 m_currentFrame = i; 97 draw(ctxt, dstRect, FloatRect(0.0f, 0.0f, srcSize.width(), srcSize.height()), styleColorSpace, compositeOp, BlendModeNormal, ImageOrientationDescription()); 98 m_currentFrame = currentFrame; 99 return; 100 } 101 } 102 103 // No image of the correct size was found, fallback to drawing the current frame 104 FloatSize imageSize = BitmapImage::size(); 105 draw(ctxt, dstRect, FloatRect(0.0f, 0.0f, imageSize.width(), imageSize.height()), styleColorSpace, compositeOp, BlendModeNormal, ImageOrientationDescription()); 106} 107 108} // namespace WebCore 109