| /* |
| * Copyright (C) 2004, 2005, 2006 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 "BitmapImage.h" |
| |
| #if USE(CG) |
| |
| #include "FloatConversion.h" |
| #include "GraphicsContextCG.h" |
| #include "ImageObserver.h" |
| #include "SubimageCacheWithTimer.h" |
| #include <ApplicationServices/ApplicationServices.h> |
| #include <wtf/RetainPtr.h> |
| |
| #if PLATFORM(MAC) |
| #include "WebCoreSystemInterface.h" |
| #endif |
| |
| #if PLATFORM(WIN) |
| #include <WebKitSystemInterface/WebKitSystemInterface.h> |
| #endif |
| |
| namespace WebCore { |
| |
| bool FrameData::clear(bool clearMetadata) |
| { |
| if (clearMetadata) |
| m_haveMetadata = false; |
| |
| m_orientation = DefaultImageOrientation; |
| |
| if (m_frame) { |
| #if CACHE_SUBIMAGES |
| subimageCache().clearImage(m_frame); |
| #endif |
| CGImageRelease(m_frame); |
| m_frame = 0; |
| return true; |
| } |
| return false; |
| } |
| |
| BitmapImage::BitmapImage(CGImageRef cgImage, ImageObserver* observer) |
| : Image(observer) |
| , m_currentFrame(0) |
| , m_frames(0) |
| , m_repetitionCount(cAnimationNone) |
| , m_repetitionCountStatus(Unknown) |
| , m_repetitionsComplete(0) |
| , m_decodedSize(0) |
| , m_decodedPropertiesSize(0) |
| , m_frameCount(1) |
| , m_isSolidColor(false) |
| , m_checkedForSolidColor(false) |
| , m_animationFinished(true) |
| , m_allDataReceived(true) |
| , m_haveSize(true) |
| , m_sizeAvailable(true) |
| , m_haveFrameCount(true) |
| { |
| CGFloat width = CGImageGetWidth(cgImage); |
| CGFloat height = CGImageGetHeight(cgImage); |
| m_decodedSize = width * height * 4; |
| m_size = IntSize(width, height); |
| |
| // Since we don't have a decoder, we can't figure out the image orientation. |
| // Set m_sizeRespectingOrientation to be the same as m_size so it's not 0x0. |
| m_sizeRespectingOrientation = IntSize(width, height); |
| |
| m_frames.grow(1); |
| m_frames[0].m_frame = CGImageRetain(cgImage); |
| m_frames[0].m_hasAlpha = true; |
| m_frames[0].m_haveMetadata = true; |
| |
| checkForSolidColor(); |
| } |
| |
| // Drawing Routines |
| |
| void BitmapImage::checkForSolidColor() |
| { |
| m_checkedForSolidColor = true; |
| if (frameCount() > 1) { |
| m_isSolidColor = false; |
| return; |
| } |
| |
| CGImageRef image = frameAtIndex(0); |
| |
| // Currently we only check for solid color in the important special case of a 1x1 image. |
| if (image && CGImageGetWidth(image) == 1 && CGImageGetHeight(image) == 1) { |
| unsigned char pixel[4]; // RGBA |
| RetainPtr<CGContextRef> bmap = adoptCF(CGBitmapContextCreate(pixel, 1, 1, 8, sizeof(pixel), deviceRGBColorSpaceRef(), |
| kCGImageAlphaPremultipliedLast | kCGBitmapByteOrder32Big)); |
| if (!bmap) |
| return; |
| GraphicsContext(bmap.get()).setCompositeOperation(CompositeCopy); |
| CGRect dst = { {0, 0}, {1, 1} }; |
| CGContextDrawImage(bmap.get(), dst, image); |
| if (pixel[3] == 0) |
| m_solidColor = Color(0, 0, 0, 0); |
| else |
| m_solidColor = Color(pixel[0] * 255 / pixel[3], pixel[1] * 255 / pixel[3], pixel[2] * 255 / pixel[3], pixel[3]); |
| m_isSolidColor = true; |
| } |
| } |
| |
| CGImageRef BitmapImage::getCGImageRef() |
| { |
| return frameAtIndex(0); |
| } |
| |
| CGImageRef BitmapImage::getFirstCGImageRefOfSize(const IntSize& size) |
| { |
| size_t count = frameCount(); |
| for (size_t i = 0; i < count; ++i) { |
| CGImageRef cgImage = frameAtIndex(i); |
| if (cgImage && IntSize(CGImageGetWidth(cgImage), CGImageGetHeight(cgImage)) == size) |
| return cgImage; |
| } |
| |
| // Fallback to the default CGImageRef if we can't find the right size |
| return getCGImageRef(); |
| } |
| |
| RetainPtr<CFArrayRef> BitmapImage::getCGImageArray() |
| { |
| size_t count = frameCount(); |
| if (!count) |
| return 0; |
| |
| CFMutableArrayRef array = CFArrayCreateMutable(NULL, count, &kCFTypeArrayCallBacks); |
| for (size_t i = 0; i < count; ++i) { |
| if (CGImageRef currFrame = frameAtIndex(i)) |
| CFArrayAppendValue(array, currFrame); |
| } |
| return adoptCF(array); |
| } |
| |
| void BitmapImage::draw(GraphicsContext* ctxt, const FloatRect& destRect, const FloatRect& srcRect, ColorSpace styleColorSpace, CompositeOperator compositeOp, BlendMode blendMode, ImageOrientationDescription description) |
| { |
| startAnimation(); |
| |
| CGImageRef image = frameAtIndex(m_currentFrame); |
| if (!image) // If it's too early we won't have an image yet. |
| return; |
| |
| if (mayFillWithSolidColor()) { |
| fillWithSolidColor(ctxt, destRect, solidColor(), styleColorSpace, compositeOp); |
| return; |
| } |
| |
| FloatSize selfSize = currentFrameSize(); |
| ImageOrientation orientation; |
| |
| if (description.respectImageOrientation() == RespectImageOrientation) |
| orientation = frameOrientationAtIndex(m_currentFrame); |
| |
| ctxt->drawNativeImage(image, selfSize, styleColorSpace, destRect, srcRect, compositeOp, blendMode, orientation); |
| |
| if (imageObserver()) |
| imageObserver()->didDraw(this); |
| } |
| |
| } |
| |
| #endif // USE(CG) |