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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#ifndef AV1_COMMON_CFL_H_
#define AV1_COMMON_CFL_H_
#include "av1/common/enums.h"
// Forward declaration of AV1_COMMON, in order to avoid creating a cyclic
// dependency by importing av1/common/onyxc_int.h
typedef struct AV1Common AV1_COMMON;
// Forward declaration of MACROBLOCK, in order to avoid creating a cyclic
// dependency by importing av1/common/blockd.h
typedef struct macroblockd MACROBLOCKD;
typedef struct {
// Pixel buffer containing the luma pixels used as prediction for chroma
uint8_t y_pix[MAX_SB_SQUARE];
// Height and width of the luma prediction block currently in the pixel buffer
int y_height, y_width;
// Chroma subsampling
int subsampling_x, subsampling_y;
// CfL Performs its own block level DC_PRED for each chromatic plane
int dc_pred[CFL_PRED_PLANES];
} CFL_CTX;
void cfl_init(CFL_CTX *cfl, AV1_COMMON *cm, int subsampling_x,
int subsampling_y);
void cfl_dc_pred(MACROBLOCKD *xd, BLOCK_SIZE plane_bsize, TX_SIZE tx_size);
void cfl_predict_block(const CFL_CTX *cfl, uint8_t *dst, int dst_stride,
int row, int col, TX_SIZE tx_size, int dc_pred);
void cfl_store(CFL_CTX *cfl, const uint8_t *input, int input_stride, int row,
int col, TX_SIZE tx_size);
double cfl_load(const CFL_CTX *cfl, uint8_t *output, int output_stride, int row,
int col, TX_SIZE tx_size);
#endif // AV1_COMMON_CFL_H_
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