subtract.c (1712B)
1 /* 2 * Copyright (c) 2016, Alliance for Open Media. All rights reserved. 3 * 4 * This source code is subject to the terms of the BSD 2 Clause License and 5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License 6 * was not distributed with this source code in the LICENSE file, you can 7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open 8 * Media Patent License 1.0 was not distributed with this source code in the 9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent. 10 */ 11 12 #include <stdlib.h> 13 14 #include "config/aom_config.h" 15 #include "config/aom_dsp_rtcd.h" 16 17 #include "aom/aom_integer.h" 18 #include "aom_ports/mem.h" 19 20 void aom_subtract_block_c(int rows, int cols, int16_t *diff, 21 ptrdiff_t diff_stride, const uint8_t *src, 22 ptrdiff_t src_stride, const uint8_t *pred, 23 ptrdiff_t pred_stride) { 24 int r, c; 25 26 for (r = 0; r < rows; r++) { 27 for (c = 0; c < cols; c++) diff[c] = src[c] - pred[c]; 28 29 diff += diff_stride; 30 pred += pred_stride; 31 src += src_stride; 32 } 33 } 34 35 #if CONFIG_AV1_HIGHBITDEPTH 36 void aom_highbd_subtract_block_c(int rows, int cols, int16_t *diff, 37 ptrdiff_t diff_stride, const uint8_t *src8, 38 ptrdiff_t src_stride, const uint8_t *pred8, 39 ptrdiff_t pred_stride) { 40 int r, c; 41 uint16_t *src = CONVERT_TO_SHORTPTR(src8); 42 uint16_t *pred = CONVERT_TO_SHORTPTR(pred8); 43 44 for (r = 0; r < rows; r++) { 45 for (c = 0; c < cols; c++) { 46 diff[c] = src[c] - pred[c]; 47 } 48 49 diff += diff_stride; 50 pred += pred_stride; 51 src += src_stride; 52 } 53 } 54 #endif