| /* |
| * Copyright (c) 2017 ARM Limited. |
| * |
| * SPDX-License-Identifier: MIT |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to |
| * deal in the Software without restriction, including without limitation the |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| * sell copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in all |
| * copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| |
| layout(local_size_x = LOCAL_SIZE_X, local_size_y = LOCAL_SIZE_Y, local_size_z = LOCAL_SIZE_Z) in; |
| |
| #include "helpers_cs.h" |
| |
| /** Calculate the absolute difference of two input images. |
| * |
| * @param[in] src1_ptr Pointer to the first source image. Supported data types: U8 |
| * @param[in] src1_attrs The attributes of the first source image |
| * @param[in] src2_ptr Pointer to the second source image. Supported data types: Same as @p in1_ptr |
| * @param[in] src2_attrs The attributes of the second source image |
| * @param[out] dst_ptr Pointer to the destination image. Supported data types: Same as @p in1_ptr |
| * @param[in] dst_attrs The attributes of the destination image |
| */ |
| SHADER_PARAMS_DECLARATION |
| { |
| ImageAttributes src1_attrs; |
| ImageAttributes src2_attrs; |
| ImageAttributes dst_attrs; |
| }; |
| |
| TENSOR_DECLARATION(1, src1Buffer, uint, src1_ptr, src1_shift, 2, readonly); |
| TENSOR_DECLARATION(2, src2Buffer, uint, src2_ptr, src2_shift, 2, readonly); |
| TENSOR_DECLARATION(3, dstBuffer, uint, dst_ptr, dst_shift, 2, writeonly); |
| |
| void main(void) |
| { |
| ImageIterator src1_iter = CONVERT_TO_IMAGE_ITERATOR(src1_attrs, src1_shift); |
| ImageIterator src2_iter = CONVERT_TO_IMAGE_ITERATOR(src2_attrs, src2_shift); |
| ImageIterator dst_iter = CONVERT_TO_IMAGE_ITERATOR(dst_attrs, dst_shift); |
| |
| lowp uvec4 tmp1 = LOAD_UNPACK4_CURRENT_ITEM_U8(src1_ptr, src1_iter); |
| lowp uvec4 tmp2 = LOAD_UNPACK4_CURRENT_ITEM_U8(src2_ptr, src2_iter); |
| lowp uvec4 diff = uvec4(abs(ivec4(tmp1 - tmp2))); |
| |
| STORE_PACK4_CURRENT_ITEM_U8(dst_ptr, dst_iter, diff); |
| } |