filmgrain.h - mozsearch

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/*

 * Copyright © 2018-2021, VideoLAN and dav1d authors

 * Copyright © 2018, Two Orioles, LLC

 * 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT OWNER OR 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.

*/

#ifndef DAV1D_SRC_FILM_GRAIN_H

#define DAV1D_SRC_FILM_GRAIN_H

#include "common/bitdepth.h"

#include "src/levels.h"

#define GRAIN_WIDTH 82

#define GRAIN_HEIGHT 73

#define FG_BLOCK_SIZE 32

#if !defined(BITDEPTH) || BITDEPTH == 8

#define SCALING_SIZE 256

typedef int8_t entry;

#else

#define SCALING_SIZE 4096

typedef int16_t entry;

#endif

#define decl_generate_grain_y_fn(name) \

void (name)(entry buf[][GRAIN_WIDTH], \

            const Dav1dFilmGrainData *const data HIGHBD_DECL_SUFFIX)

typedef decl_generate_grain_y_fn(*generate_grain_y_fn);

#define decl_generate_grain_uv_fn(name) \

void (name)(entry buf[][GRAIN_WIDTH], \

            const entry buf_y[][GRAIN_WIDTH], \

            const Dav1dFilmGrainData *const data, const intptr_t uv HIGHBD_DECL_SUFFIX)

typedef decl_generate_grain_uv_fn(*generate_grain_uv_fn);

#define decl_fgy_32x32xn_fn(name) \

void (name)(pixel *dst_row, const pixel *src_row, ptrdiff_t stride, \

            const Dav1dFilmGrainData *data, \

            size_t pw, const uint8_t scaling[SCALING_SIZE], \

            const entry grain_lut[][GRAIN_WIDTH], \

            int bh, int row_num HIGHBD_DECL_SUFFIX)

typedef decl_fgy_32x32xn_fn(*fgy_32x32xn_fn);

#define decl_fguv_32x32xn_fn(name) \

void (name)(pixel *dst_row, const pixel *src_row, ptrdiff_t stride, \

            const Dav1dFilmGrainData *data, size_t pw, \

            const uint8_t scaling[SCALING_SIZE], \

            const entry grain_lut[][GRAIN_WIDTH], int bh, int row_num, \

            const pixel *luma_row, ptrdiff_t luma_stride, \

            int uv_pl, int is_id HIGHBD_DECL_SUFFIX)

typedef decl_fguv_32x32xn_fn(*fguv_32x32xn_fn);

typedef struct Dav1dFilmGrainDSPContext {

    generate_grain_y_fn generate_grain_y;

    generate_grain_uv_fn generate_grain_uv[3];

    fgy_32x32xn_fn fgy_32x32xn;

    fguv_32x32xn_fn fguv_32x32xn[3];

} Dav1dFilmGrainDSPContext;

bitfn_decls(void dav1d_film_grain_dsp_init, Dav1dFilmGrainDSPContext *c);

#endif /* DAV1D_SRC_FILM_GRAIN_H */