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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.
65 lines
2.2 KiB
C++
65 lines
2.2 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <andreas@ladybird.org>
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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/HashMap.h>
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#include <ImageDecoder/ImageDecoderClientEndpoint.h>
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#include <ImageDecoder/ImageDecoderServerEndpoint.h>
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#include <LibCore/Promise.h>
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#include <LibGfx/ColorSpace.h>
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#include <LibIPC/ConnectionToServer.h>
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namespace ImageDecoderClient {
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struct Frame {
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NonnullRefPtr<Gfx::Bitmap> bitmap;
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u32 duration { 0 };
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};
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struct DecodedImage {
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bool is_animated { false };
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Gfx::FloatPoint scale { 1, 1 };
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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 Client final
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: public IPC::ConnectionToServer<ImageDecoderClientEndpoint, ImageDecoderServerEndpoint>
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, public ImageDecoderClientEndpoint {
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C_OBJECT_ABSTRACT(Client);
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public:
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using InitTransport = Messages::ImageDecoderServer::InitTransport;
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Client(NonnullOwnPtr<IPC::Transport>);
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NonnullRefPtr<Core::Promise<DecodedImage>> decode_image(ReadonlyBytes, Function<ErrorOr<void>(DecodedImage&)> on_resolved, Function<void(Error&)> on_rejected, Optional<Gfx::IntSize> ideal_size = {}, Optional<ByteString> mime_type = {});
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void request_animation_frames(i64 session_id, u32 start_frame_index, u32 count);
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void stop_animation_decode(i64 session_id);
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Function<void()> on_death;
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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, String error_message)> on_animation_decode_failed;
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private:
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virtual void die() override;
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virtual void did_decode_image(i64 image_id, bool is_animated, u32 loop_count, Gfx::BitmapSequence bitmap_sequence, Vector<u32> durations, Gfx::FloatPoint scale, Gfx::ColorSpace color_space, i64 session_id) override;
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virtual void did_fail_to_decode_image(i64 image_id, String error_message) override;
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virtual void did_decode_animation_frames(i64 session_id, Gfx::BitmapSequence bitmaps) override;
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virtual void did_fail_animation_decode(i64 session_id, String error_message) override;
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HashMap<i64, NonnullRefPtr<Core::Promise<DecodedImage>>> m_pending_decoded_images;
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};
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}
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