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Diffstat (limited to 'WebCore/platform/graphics/BitmapImage.h')
| -rw-r--r-- | WebCore/platform/graphics/BitmapImage.h | 289 |
1 files changed, 0 insertions, 289 deletions
diff --git a/WebCore/platform/graphics/BitmapImage.h b/WebCore/platform/graphics/BitmapImage.h deleted file mode 100644 index 72f3092..0000000 --- a/WebCore/platform/graphics/BitmapImage.h +++ /dev/null @@ -1,289 +0,0 @@ -/* - * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com) - * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc. All rights reserved. - * Copyright (C) 2008-2009 Torch Mobile, Inc. - * - * 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. - */ - -#ifndef BitmapImage_h -#define BitmapImage_h - -#include "Image.h" -#include "Color.h" -#include "IntSize.h" - -#if PLATFORM(MAC) -#include <wtf/RetainPtr.h> -#ifdef __OBJC__ -@class NSImage; -#else -class NSImage; -#endif -#endif - -#if PLATFORM(WIN) -typedef struct HBITMAP__ *HBITMAP; -#endif - -#if PLATFORM(HAIKU) -class BBitmap; -#endif - -namespace WebCore { - struct FrameData; -} - -// This complicated-looking declaration tells the FrameData Vector that it should copy without -// invoking our constructor or destructor. This allows us to have a vector even for a struct -// that's not copyable. -namespace WTF { - template<> struct VectorTraits<WebCore::FrameData> : public SimpleClassVectorTraits {}; -} - -namespace WebCore { - -template <typename T> class Timer; - -// ================================================ -// FrameData Class -// ================================================ - -struct FrameData : Noncopyable { - FrameData() - : m_frame(0) - , m_haveMetadata(false) - , m_isComplete(false) - , m_duration(0) - , m_hasAlpha(true) - { - } - - ~FrameData() - { - clear(true); - } - - // Clear the cached image data on the frame, and (optionally) the metadata. - // Returns whether there was cached image data to clear. - bool clear(bool clearMetadata); - - NativeImagePtr m_frame; - bool m_haveMetadata; - bool m_isComplete; - float m_duration; - bool m_hasAlpha; -}; - -// ================================================= -// BitmapImage Class -// ================================================= - -class BitmapImage : public Image { - friend class GeneratedImage; - friend class GraphicsContext; -public: - static PassRefPtr<BitmapImage> create(NativeImagePtr nativeImage, ImageObserver* observer = 0) - { - return adoptRef(new BitmapImage(nativeImage, observer)); - } - static PassRefPtr<BitmapImage> create(ImageObserver* observer = 0) - { - return adoptRef(new BitmapImage(observer)); - } - ~BitmapImage(); - - virtual bool isBitmapImage() const { return true; } - - virtual bool hasSingleSecurityOrigin() const { return true; } - - virtual IntSize size() const; - IntSize currentFrameSize() const; - virtual bool getHotSpot(IntPoint&) const; - - virtual bool dataChanged(bool allDataReceived); - virtual String filenameExtension() const; - - // It may look unusual that there is no start animation call as public API. This is because - // we start and stop animating lazily. Animation begins whenever someone draws the image. It will - // automatically pause once all observers no longer want to render the image anywhere. - virtual void stopAnimation(); - virtual void resetAnimation(); - - virtual unsigned decodedSize() const { return m_decodedSize; } - -#if PLATFORM(MAC) - // Accessors for native image formats. - virtual NSImage* getNSImage(); - virtual CFDataRef getTIFFRepresentation(); -#endif - -#if PLATFORM(CG) - virtual CGImageRef getCGImageRef(); -#endif - -#if PLATFORM(WIN) || (PLATFORM(QT) && OS(WINDOWS)) - static PassRefPtr<BitmapImage> create(HBITMAP); -#endif -#if PLATFORM(WIN) - virtual bool getHBITMAP(HBITMAP); - virtual bool getHBITMAPOfSize(HBITMAP, LPSIZE); -#endif - -#if PLATFORM(ANDROID) - virtual void setURL(const String& str); -#endif - -#if PLATFORM(GTK) - virtual GdkPixbuf* getGdkPixbuf(); -#endif - - virtual NativeImagePtr nativeImageForCurrentFrame() { return frameAtIndex(currentFrame()); } - -protected: - enum RepetitionCountStatus { - Unknown, // We haven't checked the source's repetition count. - Uncertain, // We have a repetition count, but it might be wrong (some GIFs have a count after the image data, and will report "loop once" until all data has been decoded). - Certain, // The repetition count is known to be correct. - }; - - BitmapImage(NativeImagePtr, ImageObserver* = 0); - BitmapImage(ImageObserver* = 0); - -#if PLATFORM(WIN) - virtual void drawFrameMatchingSourceSize(GraphicsContext*, const FloatRect& dstRect, const IntSize& srcSize, ColorSpace styleColorSpace, CompositeOperator); -#endif - virtual void draw(GraphicsContext*, const FloatRect& dstRect, const FloatRect& srcRect, ColorSpace styleColorSpace, CompositeOperator); - -#if (OS(WINCE) && !PLATFORM(QT)) - virtual void drawPattern(GraphicsContext*, const FloatRect& srcRect, const AffineTransform& patternTransform, - const FloatPoint& phase, ColorSpace styleColorSpace, CompositeOperator, const FloatRect& destRect); -#endif - -#if PLATFORM(HAIKU) - virtual BBitmap* getBBitmap() const; -#endif - - size_t currentFrame() const { return m_currentFrame; } - size_t frameCount(); - NativeImagePtr frameAtIndex(size_t); - bool frameIsCompleteAtIndex(size_t); - float frameDurationAtIndex(size_t); - bool frameHasAlphaAtIndex(size_t); - - // Decodes and caches a frame. Never accessed except internally. - void cacheFrame(size_t index); - - // Called to invalidate cached data. When |destroyAll| is true, we wipe out - // the entire frame buffer cache and tell the image source to destroy - // everything; this is used when e.g. we want to free some room in the image - // cache. If |destroyAll| is false, we only delete frames up to the current - // one; this is used while animating large images to keep memory footprint - // low without redecoding the whole image on every frame. - virtual void destroyDecodedData(bool destroyAll = true); - - // If the image is large enough, calls destroyDecodedData() and passes - // |destroyAll| along. - void destroyDecodedDataIfNecessary(bool destroyAll); - - // Generally called by destroyDecodedData(), destroys whole-image metadata - // and notifies observers that the memory footprint has (hopefully) - // decreased by |framesCleared| times the size (in bytes) of a frame. - void destroyMetadataAndNotify(int framesCleared); - - // Whether or not size is available yet. - bool isSizeAvailable(); - - // Animation. - int repetitionCount(bool imageKnownToBeComplete); // |imageKnownToBeComplete| should be set if the caller knows the entire image has been decoded. - bool shouldAnimate(); - virtual void startAnimation(bool catchUpIfNecessary = true); - void advanceAnimation(Timer<BitmapImage>*); - - // Function that does the real work of advancing the animation. When - // skippingFrames is true, we're in the middle of a loop trying to skip over - // a bunch of animation frames, so we should not do things like decode each - // one or notify our observers. - // Returns whether the animation was advanced. - bool internalAdvanceAnimation(bool skippingFrames); - - // Handle platform-specific data - void initPlatformData(); - void invalidatePlatformData(); - - // Checks to see if the image is a 1x1 solid color. We optimize these images and just do a fill rect instead. - // This check should happen regardless whether m_checkedForSolidColor is already set, as the frame may have - // changed. - void checkForSolidColor(); - - virtual bool mayFillWithSolidColor() - { - if (!m_checkedForSolidColor && frameCount() > 0) { - checkForSolidColor(); - // WINCE PORT: checkForSolidColor() doesn't set m_checkedForSolidColor until - // it gets enough information to make final decision. -#if !OS(WINCE) - ASSERT(m_checkedForSolidColor); -#endif - } - return m_isSolidColor && m_currentFrame == 0; - } - virtual Color solidColor() const { return m_solidColor; } - - ImageSource m_source; - mutable IntSize m_size; // The size to use for the overall image (will just be the size of the first image). - - size_t m_currentFrame; // The index of the current frame of animation. - Vector<FrameData> m_frames; // An array of the cached frames of the animation. We have to ref frames to pin them in the cache. - - Timer<BitmapImage>* m_frameTimer; - int m_repetitionCount; // How many total animation loops we should do. This will be cAnimationNone if this image type is incapable of animation. - RepetitionCountStatus m_repetitionCountStatus; - int m_repetitionsComplete; // How many repetitions we've finished. - double m_desiredFrameStartTime; // The system time at which we hope to see the next call to startAnimation(). - -#if PLATFORM(MAC) - mutable RetainPtr<NSImage> m_nsImage; // A cached NSImage of frame 0. Only built lazily if someone actually queries for one. - mutable RetainPtr<CFDataRef> m_tiffRep; // Cached TIFF rep for frame 0. Only built lazily if someone queries for one. -#endif - - Color m_solidColor; // If we're a 1x1 solid color, this is the color to use to fill. - bool m_isSolidColor; // Whether or not we are a 1x1 solid image. - bool m_checkedForSolidColor; // Whether we've checked the frame for solid color. - - bool m_animationFinished; // Whether or not we've completed the entire animation. - - bool m_allDataReceived; // Whether or not we've received all our data. - - mutable bool m_haveSize; // Whether or not our |m_size| member variable has the final overall image size yet. - bool m_sizeAvailable; // Whether or not we can obtain the size of the first image frame yet from ImageIO. - mutable bool m_hasUniformFrameSize; - - unsigned m_decodedSize; // The current size of all decoded frames. - - mutable bool m_haveFrameCount; - size_t m_frameCount; -}; - -} - -#endif |