mirror of
https://github.com/RGBCube/serenity
synced 2025-05-14 14:14:58 +00:00
d01b4327fa
Previously, ImageDecoder::create() would return a NonnullRefPtr and
could not "fail", although the returned decoder may be "invalid" which
you then had to check anyway.
The new interface looks like this:
static RefPtr<Gfx::ImageDecoder> try_create(ReadonlyBytes);
This simplifies ImageDecoder since it no longer has to worry about its
validity. Client code gets slightly clearer as well.
73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Debug.h>
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#include <ImageDecoder/ClientConnection.h>
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#include <ImageDecoder/ImageDecoderClientEndpoint.h>
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#include <LibGfx/Bitmap.h>
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#include <LibGfx/ImageDecoder.h>
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namespace ImageDecoder {
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static HashMap<int, RefPtr<ClientConnection>> s_connections;
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ClientConnection::ClientConnection(NonnullRefPtr<Core::LocalSocket> socket, int client_id)
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: IPC::ClientConnection<ImageDecoderClientEndpoint, ImageDecoderServerEndpoint>(*this, move(socket), client_id)
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{
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s_connections.set(client_id, *this);
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}
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ClientConnection::~ClientConnection()
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{
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}
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void ClientConnection::die()
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{
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s_connections.remove(client_id());
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exit(0);
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}
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Messages::ImageDecoderServer::DecodeImageResponse ClientConnection::decode_image(Core::AnonymousBuffer const& encoded_buffer)
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{
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if (!encoded_buffer.is_valid()) {
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dbgln_if(IMAGE_DECODER_DEBUG, "Encoded data is invalid");
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return nullptr;
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}
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auto decoder = Gfx::ImageDecoder::try_create(ReadonlyBytes { encoded_buffer.data<u8>(), encoded_buffer.size() });
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if (!decoder) {
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dbgln_if(IMAGE_DECODER_DEBUG, "Could not find suitable image decoder plugin for data");
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return { false, 0, Vector<Gfx::ShareableBitmap> {}, Vector<u32> {} };
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}
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if (!decoder->frame_count()) {
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dbgln_if(IMAGE_DECODER_DEBUG, "Could not decode image from encoded data");
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return { false, 0, Vector<Gfx::ShareableBitmap> {}, Vector<u32> {} };
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}
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Vector<Gfx::ShareableBitmap> bitmaps;
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Vector<u32> durations;
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for (size_t i = 0; i < decoder->frame_count(); ++i) {
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// FIXME: All image decoder plugins should be rewritten to return frame() instead of bitmap().
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// Non-animated images can simply return 1 frame.
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Gfx::ImageFrameDescriptor frame;
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if (decoder->is_animated()) {
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frame = decoder->frame(i);
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} else {
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frame.image = decoder->bitmap();
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}
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if (frame.image)
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bitmaps.append(frame.image->to_shareable_bitmap());
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else
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bitmaps.append(Gfx::ShareableBitmap {});
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durations.append(frame.duration);
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}
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return { decoder->is_animated(), static_cast<u32>(decoder->loop_count()), bitmaps, durations };
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}
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}
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