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Diffstat (limited to 'src/core/CL/cl_kernels/common/generate_proposals.cl')
| -rw-r--r-- | src/core/CL/cl_kernels/common/generate_proposals.cl | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/src/core/CL/cl_kernels/common/generate_proposals.cl b/src/core/CL/cl_kernels/common/generate_proposals.cl new file mode 100644 index 0000000000..bfe1922ac2 --- /dev/null +++ b/src/core/CL/cl_kernels/common/generate_proposals.cl @@ -0,0 +1,86 @@ +/* + * Copyright (c) 2019-2021, 2023 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" + +/** Generate all the region of interests based on the image size and the anchors passed in. For each element (x,y) of the + * grid, it will generate NUM_ANCHORS rois, given by shifting the grid position to match the anchor. + * + * @attention The following variables must be passed at compile time: + * -# -DDATA_TYPE= Tensor data type. Supported data types: F16/F32 + * -# -DHEIGHT= Height of the feature map on which this kernel is applied + * -# -DWIDTH= Width of the feature map on which this kernel is applied + * -# -DNUM_ANCHORS= Number of anchors to be used to generate the rois per each pixel + * -# -DSTRIDE= Stride to be applied at each different pixel position (i.e., x_range = (1:WIDTH)*STRIDE and y_range = (1:HEIGHT)*STRIDE + * -# -DNUM_ROI_FIELDS= Number of fields used to represent a roi + * + * @param[in] anchors_ptr Pointer to the anchors tensor. Supported data types: F16/F32 + * @param[in] anchors_stride_x Stride of the anchors tensor in X dimension (in bytes) + * @param[in] anchors_step_x anchors_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] anchors_stride_y Stride of the anchors tensor in Y dimension (in bytes) + * @param[in] anchors_step_y anchors_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] anchors_stride_z Stride of the source tensor in Z dimension (in bytes) + * @param[in] anchors_step_z anchors_stride_z * number of elements along Z processed per workitem(in bytes) + * @param[in] anchors_offset_first_element_in_bytes The offset of the first element in the boxes tensor + * @param[out] rois_ptr Pointer to the rois. Supported data types: same as @p in_ptr + * @param[out] rois_stride_x Stride of the rois in X dimension (in bytes) + * @param[out] rois_step_x pred_boxes_stride_x * number of elements along X processed per workitem(in bytes) + * @param[out] rois_stride_y Stride of the rois in Y dimension (in bytes) + * @param[out] rois_step_y pred_boxes_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[out] rois_stride_z Stride of the rois in Z dimension (in bytes) + * @param[out] rois_step_z pred_boxes_stride_z * number of elements along Z processed per workitem(in bytes) + * @param[out] rois_offset_first_element_in_bytes The offset of the first element in the rois + */ +#if defined(DATA_TYPE) && defined(WIDTH) && defined(HEIGHT) && defined(NUM_ANCHORS) && defined(STRIDE) && defined(NUM_ROI_FIELDS) +__kernel void generate_proposals_compute_all_anchors( + VECTOR_DECLARATION(anchors), + VECTOR_DECLARATION(rois)) +{ + Vector anchors = CONVERT_TO_VECTOR_STRUCT_NO_STEP(anchors); + Vector rois = CONVERT_TO_VECTOR_STRUCT(rois); + + const unsigned int idx = get_global_id(0); + // Find the index of the anchor + const unsigned int anchor_idx = idx % NUM_ANCHORS; + + // Find which shift is this thread using + const unsigned int shift_idx = idx / NUM_ANCHORS; + + // Compute the shift on the X and Y direction (the shift depends exclusively by the index thread id) + const float shift_x = (float)(shift_idx % WIDTH) * STRIDE; + const float shift_y = (float)(shift_idx / WIDTH) * STRIDE; + + const VEC_DATA_TYPE(DATA_TYPE, NUM_ROI_FIELDS) + shift = (VEC_DATA_TYPE(DATA_TYPE, NUM_ROI_FIELDS))(shift_x, shift_y, shift_x, shift_y); + + // Read the given anchor + const VEC_DATA_TYPE(DATA_TYPE, NUM_ROI_FIELDS) + anchor = vload4(0, (__global DATA_TYPE *)vector_offset(&anchors, anchor_idx * NUM_ROI_FIELDS)); + + // Apply the shift to the anchor + const VEC_DATA_TYPE(DATA_TYPE, NUM_ROI_FIELDS) + shifted_anchor = anchor + shift; + + vstore4(shifted_anchor, 0, (__global DATA_TYPE *)rois.ptr); +} +#endif //defined(DATA_TYPE) && defined(WIDTH) && defined(HEIGHT) && defined(NUM_ANCHORS) && defined(STRIDE) && defined(NUM_ROI_FIELDS) |