1/* 2 * Copyright (C) 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#include "BitmapImage.h" 29#include "GraphicsContext.h" 30#include "RefPtrCairo.h" 31#include <cairo.h> 32#include <cairo-win32.h> 33 34#include <windows.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 RefPtr<cairo_surface_t> surface = adoptRef(cairo_win32_surface_create_with_dib(CAIRO_FORMAT_ARGB32, dibSection.dsBm.bmWidth, dibSection.dsBm.bmHeight)); 54 55 return BitmapImage::create(surface.release()); 56} 57 58bool BitmapImage::getHBITMAPOfSize(HBITMAP bmp, const IntSize* size) 59{ 60 ASSERT(bmp); 61 62 BITMAP bmpInfo; 63 GetObject(bmp, sizeof(BITMAP), &bmpInfo); 64 65 // If this is a 32bpp bitmap, which it always should be, we'll clear it so alpha-wise it will be visible 66 if (bmpInfo.bmBitsPixel == 32 && bmpInfo.bmBits) { 67 int bufferSize = bmpInfo.bmWidthBytes * bmpInfo.bmHeight; 68 memset(bmpInfo.bmBits, 255, bufferSize); 69 } 70 71 unsigned char* bmpdata = (unsigned char*)bmpInfo.bmBits + bmpInfo.bmWidthBytes*(bmpInfo.bmHeight-1); 72 73 cairo_surface_t* image = cairo_image_surface_create_for_data(bmpdata, CAIRO_FORMAT_ARGB32, bmpInfo.bmWidth, bmpInfo.bmHeight, -bmpInfo.bmWidthBytes); 74 75 cairo_t* targetRef = cairo_create(image); 76 cairo_surface_destroy(image); 77 78 GraphicsContext gc(targetRef); 79 80 FloatSize imageSize = BitmapImage::size(); 81 if (size) 82 drawFrameMatchingSourceSize(&gc, FloatRect(0.0f, 0.0f, bmpInfo.bmWidth, bmpInfo.bmHeight), *size, ColorSpaceDeviceRGB, CompositeCopy); 83 else 84 draw(&gc, FloatRect(0.0f, 0.0f, bmpInfo.bmWidth, bmpInfo.bmHeight), FloatRect(0.0f, 0.0f, imageSize.width(), imageSize.height()), ColorSpaceDeviceRGB, CompositeCopy, BlendModeNormal, ImageOrientationDescription()); 85 86 // Do cleanup 87 cairo_destroy(targetRef); 88 89 return true; 90} 91 92void BitmapImage::drawFrameMatchingSourceSize(GraphicsContext* ctxt, const FloatRect& dstRect, const IntSize& srcSize, ColorSpace styleColorSpace, CompositeOperator compositeOp) 93{ 94 size_t frames = frameCount(); 95 for (size_t i = 0; i < frames; ++i) { 96 RefPtr<cairo_surface_t> surface = frameAtIndex(i); 97 if (!surface) 98 continue; 99 100 if (cairo_image_surface_get_height(surface.get()) == static_cast<size_t>(srcSize.height()) && cairo_image_surface_get_width(surface.get()) == static_cast<size_t>(srcSize.width())) { 101 size_t currentFrame = m_currentFrame; 102 m_currentFrame = i; 103 draw(ctxt, dstRect, FloatRect(0.0f, 0.0f, srcSize.width(), srcSize.height()), ColorSpaceDeviceRGB, compositeOp, BlendModeNormal, ImageOrientationDescription()); 104 m_currentFrame = currentFrame; 105 return; 106 } 107 } 108 109 // No image of the correct size was found, fallback to drawing the current frame 110 FloatSize imageSize = BitmapImage::size(); 111 draw(ctxt, dstRect, FloatRect(0.0f, 0.0f, imageSize.width(), imageSize.height()), ColorSpaceDeviceRGB, compositeOp, BlendModeNormal, ImageOrientationDescription()); 112} 113 114} // namespace WebCore 115