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f5bbecdcc2
Backed out changeset c4f073f7e3a3 (bug 1711061) Backed out changeset aced4b672fb4 (bug 1711061) Backed out changeset 3687e798f665 (bug 1711061) Backed out changeset 7b471990ea86 (bug 1711061) Backed out changeset 1014a95f540e (bug 1711061) Backed out changeset a37b3091281d (bug 1711061) Backed out changeset 96a0ef35881b (bug 1711061) Backed out changeset 38890cc266fb (bug 1711061) Backed out changeset be73004c0850 (bug 1711061) Backed out changeset b964576ae53d (bug 1711061) Backed out changeset d453c5219255 (bug 1711061) Backed out changeset 0145b538175b (bug 1711061) Backed out changeset 41ba2e2a2d13 (bug 1711061)
82 lines
3.3 KiB
C++
82 lines
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_image_FrozenImage_h
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#define mozilla_image_FrozenImage_h
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#include "ImageWrapper.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/RefPtr.h"
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namespace mozilla {
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namespace image {
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/**
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* An Image wrapper that disables animation, freezing the image at its first
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* frame. It does this using two strategies. If this is the only instance of the
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* image, animation will never start, because IncrementAnimationConsumers is
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* ignored. If there is another instance that is animated, that's still OK,
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* because any imgIContainer method that is affected by animation gets its
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* aWhichFrame argument set to FRAME_FIRST when it passes through FrozenImage.
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*
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* XXX(seth): There a known (performance, not correctness) issue with
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* GetImageContainer. See the comments for that method for more information.
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*/
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class FrozenImage : public ImageWrapper {
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typedef gfx::SourceSurface SourceSurface;
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public:
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NS_INLINE_DECL_REFCOUNTING_INHERITED(FrozenImage, ImageWrapper)
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virtual void IncrementAnimationConsumers() override;
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virtual void DecrementAnimationConsumers() override;
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bool IsNonAnimated() const;
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NS_IMETHOD GetAnimated(bool* aAnimated) override;
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NS_IMETHOD_(already_AddRefed<SourceSurface>)
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GetFrame(uint32_t aWhichFrame, uint32_t aFlags) override;
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NS_IMETHOD_(already_AddRefed<SourceSurface>)
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GetFrameAtSize(const gfx::IntSize& aSize, uint32_t aWhichFrame,
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uint32_t aFlags) override;
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NS_IMETHOD_(bool)
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IsImageContainerAvailable(WindowRenderer* aRenderer,
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uint32_t aFlags) override;
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NS_IMETHOD_(ImgDrawResult)
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GetImageContainerAtSize(WindowRenderer* aRenderer, const gfx::IntSize& aSize,
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const Maybe<SVGImageContext>& aSVGContext,
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const Maybe<ImageIntRegion>& aRegion, uint32_t aFlags,
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layers::ImageContainer** aOutContainer) override;
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NS_IMETHOD_(ImgDrawResult)
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Draw(gfxContext* aContext, const nsIntSize& aSize, const ImageRegion& aRegion,
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uint32_t aWhichFrame, gfx::SamplingFilter aSamplingFilter,
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const Maybe<SVGImageContext>& aSVGContext, uint32_t aFlags,
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float aOpacity) override;
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NS_IMETHOD StartDecoding(uint32_t aFlags, uint32_t aWhichFrame) override;
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NS_IMETHOD_(bool)
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StartDecodingWithResult(uint32_t aFlags, uint32_t aWhichFrame) override;
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NS_IMETHOD_(DecodeResult)
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RequestDecodeWithResult(uint32_t aFlags, uint32_t aWhichFrame) override;
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NS_IMETHOD RequestDecodeForSize(const nsIntSize& aSize, uint32_t aFlags,
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uint32_t aWhichFrame) override;
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NS_IMETHOD_(void) RequestRefresh(const TimeStamp& aTime) override;
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NS_IMETHOD GetAnimationMode(uint16_t* aAnimationMode) override;
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NS_IMETHOD SetAnimationMode(uint16_t aAnimationMode) override;
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NS_IMETHOD ResetAnimation() override;
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NS_IMETHOD_(float) GetFrameIndex(uint32_t aWhichFrame) override;
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protected:
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explicit FrozenImage(Image* aImage) : ImageWrapper(aImage) {}
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virtual ~FrozenImage() {}
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private:
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friend class ImageOps;
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};
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} // namespace image
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} // namespace mozilla
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#endif // mozilla_image_FrozenImage_h
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