57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
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/*
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* Copyright (c) 2015 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <stdlib.h>
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#include "./vpx_config.h"
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#include "./vpx_dsp_rtcd.h"
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#include "vpx/vpx_integer.h"
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#include "vpx_ports/mem.h"
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void vpx_subtract_block_c(int rows, int cols,
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int16_t *diff, ptrdiff_t diff_stride,
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const uint8_t *src, ptrdiff_t src_stride,
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const uint8_t *pred, ptrdiff_t pred_stride) {
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int r, c;
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for (r = 0; r < rows; r++) {
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for (c = 0; c < cols; c++)
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diff[c] = src[c] - pred[c];
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diff += diff_stride;
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pred += pred_stride;
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src += src_stride;
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}
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}
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#if CONFIG_VP9_HIGHBITDEPTH
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void vpx_highbd_subtract_block_c(int rows, int cols,
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int16_t *diff, ptrdiff_t diff_stride,
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const uint8_t *src8, ptrdiff_t src_stride,
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const uint8_t *pred8, ptrdiff_t pred_stride,
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int bd) {
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int r, c;
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uint16_t *src = CONVERT_TO_SHORTPTR(src8);
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uint16_t *pred = CONVERT_TO_SHORTPTR(pred8);
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(void) bd;
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for (r = 0; r < rows; r++) {
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for (c = 0; c < cols; c++) {
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diff[c] = src[c] - pred[c];
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}
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diff += diff_stride;
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pred += pred_stride;
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src += src_stride;
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}
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}
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#endif // CONFIG_VP9_HIGHBITDEPTH
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