7449c1b27f
The ImageDecoder service now returns a list of image frames, each with a duration value. The code for in-process image decoding is removed from LibWeb, an all image decode requests are sent out-of-process to ImageDecoder. :^) This won't scale super well to very long and/or large animations, but we can work on improving that separately. The main goal here is simply to stop doing any image decoding inside LibWeb. Fixes #5165.
89 lines
2.8 KiB
C++
89 lines
2.8 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <LibWeb/Loader/Resource.h>
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namespace Web {
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class ImageResource final : public Resource {
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friend class Resource;
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public:
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virtual ~ImageResource() override;
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struct Frame {
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RefPtr<Gfx::Bitmap> bitmap;
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size_t duration { 0 };
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};
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const Gfx::Bitmap* bitmap(size_t frame_index = 0) const;
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int frame_duration(size_t frame_index) const;
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size_t frame_count() const
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{
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decode_if_needed();
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return m_decoded_frames.size();
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}
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bool is_animated() const
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{
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decode_if_needed();
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return m_animated;
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}
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size_t loop_count() const
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{
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decode_if_needed();
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return m_loop_count;
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}
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void update_volatility();
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private:
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explicit ImageResource(const LoadRequest&);
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void decode_if_needed() const;
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mutable bool m_animated { false };
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mutable int m_loop_count { 0 };
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mutable Vector<Frame> m_decoded_frames;
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mutable bool m_has_attempted_decode { false };
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};
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class ImageResourceClient : public ResourceClient {
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public:
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virtual ~ImageResourceClient();
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virtual bool is_visible_in_viewport() const { return false; }
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protected:
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ImageResource* resource() { return static_cast<ImageResource*>(ResourceClient::resource()); }
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const ImageResource* resource() const { return static_cast<const ImageResource*>(ResourceClient::resource()); }
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private:
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virtual Resource::Type client_type() const override { return Resource::Type::Image; }
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};
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}
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