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0f7df5f213
Implement the client side of streaming animation decode sessions. The ImageDecoderClient handles new IPC messages for frame delivery and failure reporting, and the ImageCodecPlugin bridges this through the platform abstraction layer used by LibWeb.
50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
/*
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* Copyright (c) 2020-2022, Andreas Kling <andreas@ladybird.org>
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* Copyright (c) 2022, Dex♪ <dexes.ttp@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/RefPtr.h>
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#include <AK/Vector.h>
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#include <LibCore/Promise.h>
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#include <LibGfx/ColorSpace.h>
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#include <LibGfx/Forward.h>
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#include <LibWeb/Export.h>
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namespace Web::Platform {
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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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struct DecodedImage {
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bool is_animated { false };
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u32 loop_count { 0 };
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u32 frame_count { 0 };
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Vector<Frame> frames;
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Vector<u32> all_durations;
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Gfx::ColorSpace color_space;
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i64 session_id { 0 };
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};
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class WEB_API ImageCodecPlugin {
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public:
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static ImageCodecPlugin& the();
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static void install(ImageCodecPlugin&);
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virtual ~ImageCodecPlugin();
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virtual NonnullRefPtr<Core::Promise<DecodedImage>> decode_image(ReadonlyBytes, ESCAPING Function<ErrorOr<void>(DecodedImage&)> on_resolved, ESCAPING Function<void(Error&)> on_rejected) = 0;
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virtual void request_animation_frames(i64 session_id, u32 start_frame_index, u32 count) = 0;
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virtual void stop_animation_decode(i64 session_id) = 0;
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Function<void(i64 session_id, Vector<NonnullRefPtr<Gfx::Bitmap>>)> on_animation_frames_decoded;
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Function<void(i64 session_id)> on_animation_decode_failed;
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};
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}
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