diff options
Diffstat (limited to 'src/core/GLES_COMPUTE/cs_shaders/absdiff.cs')
| -rw-r--r-- | src/core/GLES_COMPUTE/cs_shaders/absdiff.cs | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/core/GLES_COMPUTE/cs_shaders/absdiff.cs b/src/core/GLES_COMPUTE/cs_shaders/absdiff.cs new file mode 100644 index 0000000000..f6113e13eb --- /dev/null +++ b/src/core/GLES_COMPUTE/cs_shaders/absdiff.cs @@ -0,0 +1,71 @@ +/* + * 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.h" + +layout(std140) uniform shader_params +{ + IMAGE_PARAM_DECLARATION(src1); + IMAGE_PARAM_DECLARATION(src2); + IMAGE_PARAM_DECLARATION(dst); +}; + +BUFFER_DECLARATION(src1, 1, uint, readonly); +BUFFER_DECLARATION(src2, 2, uint, readonly); +BUFFER_DECLARATION(dst, 3, uint, writeonly); + +/** 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_stride_x Stride of the first source image in X dimension (in bytes) + * @param[in] src1_step_x src_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] src1_stride_y Stride of the first source image in Y dimension (in bytes) + * @param[in] src1_step_y src_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] src1_offset_first_element_in_bytes The offset of the first element in 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_stride_x Stride of the second source image in X dimension (in bytes) + * @param[in] src2_step_x src_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] src2_stride_y Stride of the second source image in Y dimension (in bytes) + * @param[in] src2_step_y src_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] src2_offset_first_element_in_bytes The offset of the first element in the second source image + * @param[out] dst_ptr Pointer to the destination image. Supported data types: Same as @p in1_ptr + * @param[in] dst_stride_x Stride of the destination image in X dimension (in bytes) + * @param[in] dst_step_x dst_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] dst_stride_y Stride of the destination image in Y dimension (in bytes) + * @param[in] dst_step_y dst_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] dst_offset_first_element_in_bytes The offset of the first element in the destination image + */ +void main(void) +{ + Image src1 = CONVERT_TO_IMAGE_STRUCT(src1); + Image src2 = CONVERT_TO_IMAGE_STRUCT(src2); + Image dst = CONVERT_TO_IMAGE_STRUCT(dst); + + uvec4 tmp1 = UNPACK(LOAD4(src1, CURRENT_OFFSET(src1)), uint, uvec4); + uvec4 tmp2 = UNPACK(LOAD4(src2, CURRENT_OFFSET(src2)), uint, uvec4); + uvec4 diff = uvec4(abs(ivec4(tmp1 - tmp2))); + + STORE4(dst, CURRENT_OFFSET(dst), PACK(diff, uvec4, uint)); +} |