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cf69f52d53
This has been a longstanding ergonomic issue with our IPC compiler. Non- trivial types were previously passed by const&. So if we wanted to avoid expensive copies, we would have to const_cast and move the data. We now pass ownership of all transferred data to the client subclasses. This allows us to remove const_cast from these methods, and allows us to avoid some trivial expensive copies that we didn't bother to const_cast.
54 lines
1.6 KiB
C++
54 lines
1.6 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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Vector<Frame> frames;
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Gfx::ColorSpace color_space;
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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(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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Function<void()> on_death;
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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) override;
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virtual void did_fail_to_decode_image(i64 image_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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