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/*
* Copyright (c) 2015 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.
*/
#include <stdlib.h>
#include "./vpx_config.h"
#include "./vpx_dsp_rtcd.h"
#include "vpx/vpx_integer.h"
#include "vpx_ports/mem.h"
void vpx_subtract_block_c(int rows, int cols,
int16_t *diff, ptrdiff_t diff_stride,
const uint8_t *src, ptrdiff_t src_stride,
const uint8_t *pred, ptrdiff_t pred_stride) {
int r, c;
for (r = 0; r < rows; r++) {
for (c = 0; c < cols; c++)
diff[c] = src[c] - pred[c];
diff += diff_stride;
pred += pred_stride;
src += src_stride;
}
}
#if CONFIG_VP9_HIGHBITDEPTH
void vpx_highbd_subtract_block_c(int rows, int cols,
int16_t *diff, ptrdiff_t diff_stride,
const uint8_t *src8, ptrdiff_t src_stride,
const uint8_t *pred8, ptrdiff_t pred_stride,
int bd) {
int r, c;
uint16_t *src = CONVERT_TO_SHORTPTR(src8);
uint16_t *pred = CONVERT_TO_SHORTPTR(pred8);
(void) bd;
for (r = 0; r < rows; r++) {
for (c = 0; c < cols; c++) {
diff[c] = src[c] - pred[c];
}
diff += diff_stride;
pred += pred_stride;
src += src_stride;
}
}
#endif // CONFIG_VP9_HIGHBITDEPTH
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