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/**
* Copyright (c) 2015 Samsung Electronics Co., Ltd All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "mv_apply_mask.h"
#include "mv_common.h"
#include "mv_private.h"
#ifdef ENABLE_NEON
#include <arm_neon.h>
#endif
int mv_apply_mask(
uint8_t *src_buffer,
uint8_t *__restrict mask,
int width,
int height,
int stride,
uint8_t *dst_buffer)
{
if (src_buffer == NULL || mask == NULL || width <= 0 || height <= 0 ||
stride <= 0 || dst_buffer == NULL) {
LOGE("Wrong input parameter. Aplpying mask failed.");
return MEDIA_VISION_ERROR_INVALID_PARAMETER;
}
const int padding = stride - width;
#ifdef ENABLE_NEON
const int batch_size = 16;
const int batch_columns_count = width / batch_size;
#endif
int row = 0;
int column = 0;
for (; row < height; ++row) {
#ifdef ENABLE_NEON
for (column = 0; column < batch_columns_count; ++column) {
uint8x16_t src_v = vld1q_u8(src_buffer);
uint8x16_t mask_v = vld1q_u8(mask);
uint8x16_t dst_v = vandq_u8(src_v, mask_v);
vst1q_u8(dst_buffer, dst_v);
dst_buffer += batch_size;
src_buffer += batch_size;
mask += batch_size;
}
#else
for (column = 0; column < width; ++column) {
(*dst_buffer) = ((*src_buffer) & (*mask));
++dst_buffer;
++src_buffer;
++mask;
}
#endif
dst_buffer += padding;
src_buffer += padding;
mask += padding;
}
return MEDIA_VISION_ERROR_NONE;
}
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