stage_epf.h - mozsearch

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// Copyright (c) the JPEG XL Project Authors. All rights reserved.

//

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE file.

#ifndef LIB_JXL_RENDER_PIPELINE_STAGE_EPF_H_

#define LIB_JXL_RENDER_PIPELINE_STAGE_EPF_H_

#include <cstdint>

#include <memory>

#include "lib/jxl/image.h"

#include "lib/jxl/loop_filter.h"

#include "lib/jxl/render_pipeline/render_pipeline_stage.h"

namespace jxl {

enum class EpfStage : uint8_t { Zero, One, Two };

// Applies the `epf_stage`-th EPF step with the given settings and `sigma`.

// `sigma` will be accessed with an offset of (kSigmaPadding, kSigmaPadding),

// and should have (kSigmaBorder, kSigmaBorder) mirrored sigma values available

// around the main image. See also filters.(h|cc)

std::unique_ptr<RenderPipelineStage> GetEPFStage(const LoopFilter& lf,

                                                 const ImageF& sigma,

                                                 EpfStage epf_stage);

}  // namespace jxl

#endif  // LIB_JXL_RENDER_PIPELINE_STAGE_EPF_H_