/*
* Copyright (c) 2024, Nico Weber <thakis@chromium.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibGfx/ImageFormats/ImageDecoder.h>
namespace Gfx {
namespace JPEG2000 {
enum class SubBand {
HorizontalLowpassVerticalLowpass, // "LL" in spec
HorizontalHighpassVerticalLowpass, // "HL" in spec
HorizontalLowpassVerticalHighpass, // "LH" in spec
HorizontalHighpassVerticalHighpass, // "HH" in spec
};
}
struct JPEG2000LoadingContext;
struct JPEG2000DecoderOptions {
enum class PaletteHandling {
// Expands palette (to RGB or CMYK). Default.
Expand,
// Returns palette indices as grayscale. For use in PDFs.
PaletteIndicesAsGrayscale,
};
PaletteHandling palette_handling { PaletteHandling::Expand };
};
class JPEG2000ImageDecoderPlugin : public ImageDecoderPlugin {
public:
static bool sniff(ReadonlyBytes);
static ErrorOr<NonnullOwnPtr<ImageDecoderPlugin>> create(ReadonlyBytes);
static ErrorOr<NonnullOwnPtr<ImageDecoderPlugin>> create_with_options(ReadonlyBytes, JPEG2000DecoderOptions = {});
virtual ~JPEG2000ImageDecoderPlugin() override;
virtual IntSize size() override;
virtual ErrorOr<ImageFrameDescriptor> frame(size_t index, Optional<IntSize> ideal_size = {}) override;
virtual ErrorOr<Optional<ReadonlyBytes>> icc_data() override;
virtual NaturalFrameFormat natural_frame_format() const override;
virtual ErrorOr<NonnullRefPtr<CMYKBitmap>> cmyk_frame() override;
private:
JPEG2000ImageDecoderPlugin(JPEG2000DecoderOptions);
OwnPtr<JPEG2000LoadingContext> m_context;
};
}