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/*
* Copyright (c) 2013 The WebM 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 in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef VP9_COMMON_CONVOLVE_H_
#define VP9_COMMON_CONVOLVE_H_
#include "vpx/vpx_integer.h"
typedef void (*convolve_fn_t)(const uint8_t *src, int src_stride,
uint8_t *dst, int dst_stride,
const int16_t *filter_x, int x_step_q4,
const int16_t *filter_y, int y_step_q4,
int w, int h);
// Not a convolution, a block copy conforming to the convolution prototype
void vp9_convolve_copy(const uint8_t *src, int src_stride,
uint8_t *dst, int dst_stride,
const int16_t *filter_x, int x_step_q4,
const int16_t *filter_y, int y_step_q4,
int w, int h);
// Not a convolution, a block average conforming to the convolution prototype
void vp9_convolve_avg(const uint8_t *src, int src_stride,
uint8_t *dst, int dst_stride,
const int16_t *filter_x, int x_step_q4,
const int16_t *filter_y, int y_step_q4,
int w, int h);
struct subpix_fn_table {
convolve_fn_t predict[2][2][2]; // horiz, vert, avg
const int16_t (*filter_x)[8];
const int16_t (*filter_y)[8];
int x_step_q4;
int y_step_q4;
};
#endif // VP9_COMMON_CONVOLVE_H_
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