blob: 9377654217aa28b4982d44fd0e0637087c5ce3fe [file] [log] [blame]
// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/login/ui/image_parser.h"
#include <utility>
#include "ash/shell.h"
#include "ipc/ipc_channel.h"
#include "services/data_decoder/public/cpp/decode_image.h"
namespace ash {
namespace {
const int64_t kMaxImageSizeInBytes =
static_cast<int64_t>(IPC::Channel::kMaximumMessageSize);
void ConvertToAnimationFrame(
OnDecoded callback,
std::vector<data_decoder::mojom::AnimationFramePtr> mojo_frames) {
AnimationFrames animation;
for (auto& mojo_frame : mojo_frames) {
AnimationFrame frame;
frame.image = gfx::ImageSkia::CreateFrom1xBitmap(mojo_frame->bitmap);
frame.duration = mojo_frame->duration;
animation.push_back(frame);
}
std::move(callback).Run(std::move(animation));
}
} // namespace
void DecodeAnimation(const std::vector<uint8_t>& image_data,
OnDecoded on_decoded) {
// There are two reasons to decode the image in a sandboxed process:
// - image_data may have come from the user, so it cannot be trusted.
// - PNGCodec::Decode uses libpng which does not support APNG. blink::WebImage
// also goes through libpng, but APNG support is handled specifically by
// blink's PNGImageReader.cpp.
data_decoder::DecodeAnimation(
Shell::Get()->connector(), image_data, true /*shrink_to_fit*/,
kMaxImageSizeInBytes,
base::Bind(&ConvertToAnimationFrame, Passed(&on_decoded)));
}
} // namespace ash