COMPMID-344 Updated doxygen
Change-Id: I32f7b84daa560e460b77216add529c8fa8b327ae
diff --git a/src/core/CL/cl_kernels/accumulate.cl b/src/core/CL/cl_kernels/accumulate.cl
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+/*
+ * Copyright (c) 2016, 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.
+ */
+#include "helpers.h"
+
+/** This function accumulates an input image into output image.
+ *
+ * @param[in] input_ptr Pointer to the source image. Supported data types: U8
+ * @param[in] input_stride_x Stride of the source image in X dimension (in bytes)
+ * @param[in] input_step_x input_stride_x * number of elements along X processed per workitem(in bytes)
+ * @param[in] input_stride_y Stride of the source image in Y dimension (in bytes)
+ * @param[in] input_step_y input_stride_y * number of elements along Y processed per workitem(in bytes)
+ * @param[in] input_offset_first_element_in_bytes The offset of the first element in the source image
+ * @param[out] accu_ptr Pointer to the destination image. Supported data types: S16
+ * @param[in] accu_stride_x Stride of the destination image in X dimension (in bytes)
+ * @param[in] accu_step_x accu_stride_x * number of elements along X processed per workitem(in bytes)
+ * @param[in] accu_stride_y Stride of the destination image in Y dimension (in bytes)
+ * @param[in] accu_step_y accu_stride_y * number of elements along Y processed per workitem(in bytes)
+ * @param[in] accu_offset_first_element_in_bytes The offset of the first element in the destination image
+ */
+__kernel void accumulate(
+ IMAGE_DECLARATION(input),
+ IMAGE_DECLARATION(accu))
+{
+ // Get pixels pointer
+ Image input = CONVERT_TO_IMAGE_STRUCT(input);
+ Image accu = CONVERT_TO_IMAGE_STRUCT(accu);
+
+ // Load data
+ uchar16 in_data = vload16(0, input.ptr);
+ short16 accu_data = vload16(0, (__global short *)accu.ptr);
+
+ // Perform accumulation
+ short16 res = add_sat(convert_short16(in_data), accu_data);
+
+ // Store result
+ vstore16(res, 0, (__global short *)accu.ptr);
+}
+
+/** This function accumulates a weighted value from an input image to an output image.
+ *
+ * @param[in] input_ptr Pointer to the source image. Supported data types: U8
+ * @param[in] input_stride_x Stride of the source image in X dimension (in bytes)
+ * @param[in] input_step_x input_stride_x * number of elements along X processed per workitem(in bytes)
+ * @param[in] input_stride_y Stride of the source image in Y dimension (in bytes)
+ * @param[in] input_step_y input_stride_y * number of elements along Y processed per workitem(in bytes)
+ * @param[in] input_offset_first_element_in_bytes The offset of the first element in the source image
+ * @param[out] accu_ptr Pointer to the destination image. Supported data types: S16
+ * @param[in] accu_stride_x Stride of the destination image in X dimension (in bytes)
+ * @param[in] accu_step_x accu_stride_x * number of elements along X processed per workitem(in bytes)
+ * @param[in] accu_stride_y Stride of the destination image in Y dimension (in bytes)
+ * @param[in] accu_step_y accu_stride_y * number of elements along Y processed per workitem(in bytes)
+ * @param[in] accu_offset_first_element_in_bytes The offset of the first element in the destination image
+ * @param[in] alpha The float scalar value with a value in the range of 0 to 1
+ */
+__kernel void accumulate_weighted(
+ IMAGE_DECLARATION(input),
+ IMAGE_DECLARATION(accu),
+ const float alpha)
+{
+ // Get pixels pointer
+ Image input = CONVERT_TO_IMAGE_STRUCT(input);
+ Image accu = CONVERT_TO_IMAGE_STRUCT(accu);
+
+ // Load data
+ const float16 in_data = convert_float16(vload16(0, input.ptr));
+ const float16 accu_data = convert_float16(vload16(0, accu.ptr));
+
+ // Calculate weighted accumulation
+ const uchar16 res = convert_uchar16((1.0f - alpha) * accu_data + alpha * in_data);
+
+ // Store result
+ vstore16(res, 0, accu.ptr);
+}
+
+/** This function accumulates a squared value from an input image to an output image.
+ *
+ * @param[in] input_ptr Pointer to the source image. Supported data types: U8
+ * @param[in] input_stride_x Stride of the source image in X dimension (in bytes)
+ * @param[in] input_step_x input_stride_x * number of elements along X processed per workitem(in bytes)
+ * @param[in] input_stride_y Stride of the source image in Y dimension (in bytes)
+ * @param[in] input_step_y input_stride_y * number of elements along Y processed per workitem(in bytes)
+ * @param[in] input_offset_first_element_in_bytes The offset of the first element in the source image
+ * @param[out] accu_ptr Pointer to the destination image. Supported data types: S16
+ * @param[in] accu_stride_x Stride of the destination image in X dimension (in bytes)
+ * @param[in] accu_step_x accu_stride_x * number of elements along X processed per workitem(in bytes)
+ * @param[in] accu_stride_y Stride of the destination image in Y dimension (in bytes)
+ * @param[in] accu_step_y accu_stride_y * number of elements along Y processed per workitem(in bytes)
+ * @param[in] accu_offset_first_element_in_bytes The offset of the first element in the destination image
+ * @param[in] shift The U32 scalar value with a value in the range of 0 to 15
+ */
+__kernel void accumulate_squared(
+ IMAGE_DECLARATION(input),
+ IMAGE_DECLARATION(accu),
+ const uint shift)
+{
+ // Get pixels pointer
+ Image input = CONVERT_TO_IMAGE_STRUCT(input);
+ Image accu = CONVERT_TO_IMAGE_STRUCT(accu);
+
+ // Load data
+ ushort16 in_data = convert_ushort16(vload16(0, input.ptr));
+ uint16 accu_data = convert_uint16(vload16(0, (__global short *)accu.ptr));
+
+ // Calculate squared accumulation
+ short16 res = convert_short16_sat(accu_data + convert_uint16((in_data * in_data) >> shift));
+
+ // Store result
+ vstore16(res, 0, (__global short *)accu.ptr);
+}