decoding_image_generator.cc | Explore in Territory

/*
 * Copyright (C) 2012 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 2.  Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include "third_party/blink/renderer/platform/graphics/decoding_image_generator.h"

#include <memory>
#include <utility>

#include "base/containers/heap_array.h"
#include "third_party/blink/public/platform/platform.h"
#include "third_party/blink/renderer/platform/graphics/image_frame_generator.h"
#include "third_party/blink/renderer/platform/graphics/skia/skia_utils.h"
#include "third_party/blink/renderer/platform/image-decoders/image_decoder.h"
#include "third_party/blink/renderer/platform/image-decoders/segment_reader.h"
#include "third_party/blink/renderer/platform/instrumentation/tracing/trace_event.h"
#include "third_party/blink/renderer/platform/wtf/shared_buffer.h"
#include "third_party/skia/include/core/SkColorSpace.h"
#include "third_party/skia/include/core/SkData.h"
#include "third_party/skia/include/core/SkImageInfo.h"

namespace {
class ScopedSegmentReaderDataLocker { … };
}  // namespace

namespace blink {

// static
std::unique_ptr<SkImageGenerator>
DecodingImageGenerator::CreateAsSkImageGenerator(sk_sp<SkData> data) { … }

// static
sk_sp<DecodingImageGenerator> DecodingImageGenerator::Create(
    scoped_refptr<ImageFrameGenerator> frame_generator,
    const SkImageInfo& info,
    scoped_refptr<SegmentReader> data,
    WebVector<FrameMetadata> frames,
    PaintImage::ContentId content_id,
    bool all_data_received,
    bool can_yuv_decode,
    const cc::ImageHeaderMetadata& image_metadata) { … }

DecodingImageGenerator::DecodingImageGenerator(
    scoped_refptr<ImageFrameGenerator> frame_generator,
    const SkImageInfo& info,
    scoped_refptr<SegmentReader> data,
    WebVector<FrameMetadata> frames,
    PaintImage::ContentId complete_frame_content_id,
    bool all_data_received,
    bool can_yuv_decode,
    const cc::ImageHeaderMetadata& image_metadata)
    : … { … }

DecodingImageGenerator::~DecodingImageGenerator() = default;

sk_sp<SkData> DecodingImageGenerator::GetEncodedData() const { … }

bool DecodingImageGenerator::GetPixels(SkPixmap dst_pixmap,
                                       size_t frame_index,
                                       PaintImage::GeneratorClientId client_id,
                                       uint32_t lazy_pixel_ref) { … }

bool DecodingImageGenerator::QueryYUVA(
    const SkYUVAPixmapInfo::SupportedDataTypes& supported_data_types,
    SkYUVAPixmapInfo* yuva_pixmap_info) const { … }

bool DecodingImageGenerator::GetYUVAPlanes(
    const SkYUVAPixmaps& pixmaps,
    size_t frame_index,
    uint32_t lazy_pixel_ref,
    PaintImage::GeneratorClientId client_id) { … }

SkISize DecodingImageGenerator::GetSupportedDecodeSize(
    const SkISize& requested_size) const { … }

PaintImage::ContentId DecodingImageGenerator::GetContentIdForFrame(
    size_t frame_index) const { … }

const cc::ImageHeaderMetadata*
DecodingImageGenerator::GetMetadataForDecodeAcceleration() const { … }

}  // namespace blink
chromium/third_party/blink/renderer/platform/graphics/decoding_image_generator.cc
