ladybird/Ladybird/ImageCodecPlugin.cpp

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/*
* Copyright (c) 2022, Dex <dexes.ttp@gmail.com>
* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "ImageCodecPlugin.h"
#include "Utilities.h"
#include <LibGfx/Bitmap.h>
#include <LibGfx/ImageFormats/ImageDecoder.h>
#include <LibImageDecoderClient/Client.h>
namespace Ladybird {
ImageCodecPlugin::ImageCodecPlugin(NonnullRefPtr<ImageDecoderClient::Client> client)
: m_client(move(client))
{
m_client->on_death = [this] {
m_client = nullptr;
};
}
void ImageCodecPlugin::set_client(NonnullRefPtr<ImageDecoderClient::Client> client)
{
m_client = move(client);
m_client->on_death = [this] {
m_client = nullptr;
};
}
ImageCodecPlugin::~ImageCodecPlugin() = default;
NonnullRefPtr<Core::Promise<Web::Platform::DecodedImage>> ImageCodecPlugin::decode_image(ReadonlyBytes bytes, Function<ErrorOr<void>(Web::Platform::DecodedImage&)> on_resolved, Function<void(Error&)> on_rejected)
{
auto promise = Core::Promise<Web::Platform::DecodedImage>::construct();
if (on_resolved)
promise->on_resolution = move(on_resolved);
if (on_rejected)
promise->on_rejection = move(on_rejected);
if (!m_client) {
promise->reject(Error::from_string_literal("ImageDecoderClient is disconnected"));
return promise;
}
auto image_decoder_promise = m_client->decode_image(
bytes,
[promise](ImageDecoderClient::DecodedImage& result) -> ErrorOr<void> {
// FIXME: Remove this codec plugin and just use the ImageDecoderClient directly to avoid these copies
Web::Platform::DecodedImage decoded_image;
decoded_image.is_animated = result.is_animated;
decoded_image.loop_count = result.loop_count;
for (auto const& frame : result.frames) {
decoded_image.frames.empend(move(frame.bitmap), frame.duration);
}
promise->resolve(move(decoded_image));
return {};
},
[promise](auto& error) {
promise->reject(Error::copy(error));
});
return promise;
}
}