ref: c87ff4a09ddf50152918c127eebf11e3a6ef7b1e
dir: /vpx_dsp/subtract.c/
/* * 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_ptr, ptrdiff_t diff_stride, const uint8_t *src_ptr, ptrdiff_t src_stride, const uint8_t *pred_ptr, ptrdiff_t pred_stride) { int r, c; for (r = 0; r < rows; r++) { for (c = 0; c < cols; c++) diff_ptr[c] = src_ptr[c] - pred_ptr[c]; diff_ptr += diff_stride; pred_ptr += pred_stride; src_ptr += src_stride; } } #if CONFIG_VP9_HIGHBITDEPTH void vpx_highbd_subtract_block_c(int rows, int cols, int16_t *diff_ptr, ptrdiff_t diff_stride, const uint8_t *src8_ptr, ptrdiff_t src_stride, const uint8_t *pred8_ptr, ptrdiff_t pred_stride, int bd) { int r, c; uint16_t *src = CONVERT_TO_SHORTPTR(src8_ptr); uint16_t *pred = CONVERT_TO_SHORTPTR(pred8_ptr); (void)bd; for (r = 0; r < rows; r++) { for (c = 0; c < cols; c++) { diff_ptr[c] = src[c] - pred[c]; } diff_ptr += diff_stride; pred += pred_stride; src += src_stride; } } #endif // CONFIG_VP9_HIGHBITDEPTH