/* * Copyright (c) 2019 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_asymm.h" #if defined(DATA_TYPE) && defined(DATA_TYPE_DELTAS) && defined(WEIGHT_X) && defined(WEIGHT_Y) && defined(WEIGHT_W) && defined(WEIGHT_H) && defined(IMG_WIDTH) && defined(IMG_HEIGHT) && defined(BOX_FIELDS) && defined(SCALE_BEFORE) && defined(OFFSET_BOXES) && defined(SCALE_BOXES) && defined(OFFSET_DELTAS) && defined(SCALE_DELTAS) && defined(OFFSET_PRED_BOXES) && defined(SCALE_PRED_BOXES) // Check for compile time constants /** Perform a padded copy of input tensor to the output tensor for quantized data types. Padding values are defined at compile time * * @attention The following variables must be passed at compile time: * -# -DDATA_TYPE= Tensor data type. Supported data types: QASYMM16 for boxes and pred_boxes, QASYMM8 for for deltas * -# -DWEIGHT{X,Y,W,H}= Weights [wx, wy, ww, wh] for the deltas * -# -DIMG_WIDTH= Original image width * -# -DIMG_HEIGHT= Original image height * -# -DBOX_FIELDS= Number of fields that are used to represent a box in boxes * * @param[in] boxes_ptr Pointer to the boxes tensor. Supported data types: QASYMM16 * @param[in] boxes_stride_x Stride of the boxes tensor in X dimension (in bytes) * @param[in] boxes_step_x boxes_stride_x * number of elements along X processed per workitem(in bytes) * @param[in] boxes_stride_y Stride of the boxes tensor in Y dimension (in bytes) * @param[in] boxes_step_y boxes_stride_y * number of elements along Y processed per workitem(in bytes) * @param[in] boxes_stride_z Stride of the source tensor in Z dimension (in bytes) * @param[in] boxes_step_z boxes_stride_z * number of elements along Z processed per workitem(in bytes) * @param[in] boxes_offset_first_element_in_bytes The offset of the first element in the boxes tensor * @param[out] pred_boxes_ptr Pointer to the predicted boxes. Supported data types: same as @p in_ptr * @param[in] pred_boxes_stride_x Stride of the predicted boxes in X dimension (in bytes) * @param[in] pred_boxes_step_x pred_boxes_stride_x * number of elements along X processed per workitem(in bytes) * @param[in] pred_boxes_stride_y Stride of the predicted boxes in Y dimension (in bytes) * @param[in] pred_boxes_step_y pred_boxes_stride_y * number of elements along Y processed per workitem(in bytes) * @param[in] pred_boxes_stride_z Stride of the predicted boxes in Z dimension (in bytes) * @param[in] pred_boxes_step_z pred_boxes_stride_z * number of elements along Z processed per workitem(in bytes) * @param[in] pred_boxes_offset_first_element_in_bytes The offset of the first element in the predicted boxes * @param[in] deltas_ptr Pointer to the deltas tensor. Supported data types: QASYMM8 * @param[in] deltas_stride_x Stride of the deltas tensor in X dimension (in bytes) * @param[in] deltas_step_x deltas_stride_x * number of elements along X processed per workitem(in bytes) * @param[in] deltas_stride_y Stride of the deltas tensor in Y dimension (in bytes) * @param[in] deltas_step_y deltas_stride_y * number of elements along Y processed per workitem(in bytes) * @param[in] deltas_stride_z Stride of the source tensor in Z dimension (in bytes) * @param[in] deltas_step_z deltas_stride_z * number of elements along Z processed per workitem(in bytes) * @param[in] deltas_offset_first_element_in_bytes The offset of the first element in the deltas tensor */ __kernel void bounding_box_transform_quantized( VECTOR_DECLARATION(boxes), IMAGE_DECLARATION(pred_boxes), IMAGE_DECLARATION(deltas)) { // Get pixels pointer Vector boxes = CONVERT_TO_VECTOR_STRUCT_NO_STEP(boxes); Image pred_boxes = CONVERT_TO_IMAGE_STRUCT(pred_boxes); Image deltas = CONVERT_TO_IMAGE_STRUCT(deltas); // Load delta and box values into registers const float one = 1.f; const float halfone = 0.5f; const int py = get_global_id(1); // box float4 scale_before = (float4)SCALE_BEFORE; float4 delta = DEQUANTIZE(vload4(0, (__global DATA_TYPE_DELTAS *)deltas.ptr), OFFSET_DELTAS, SCALE_DELTAS, DATA_TYPE_DELTAS, 4); float4 box = DEQUANTIZE(vload4(0, (__global DATA_TYPE *)vector_offset(&boxes, BOX_FIELDS * py)), OFFSET_BOXES, SCALE_BOXES, DATA_TYPE, 4) / scale_before; // Calculate width and centers of the old boxes float2 dims = box.s23 - box.s01 + one; float2 ctr = box.s01 + halfone * dims; float4 weights = (float4)(WEIGHT_X, WEIGHT_Y, WEIGHT_W, WEIGHT_H); delta /= weights; delta.s23 = min(delta.s23, (float)BBOX_XFORM_CLIP); // Calculate widths and centers of the new boxes (translation + aspect ratio transformation) float2 pred_ctr = delta.s01 * dims + ctr; float2 pred_dims = exp(delta.s23) * dims; // Useful vector constant definitions float4 max_values = (float4)(IMG_WIDTH - 1, IMG_HEIGHT - 1, IMG_WIDTH - 1, IMG_HEIGHT - 1); float4 sign = (float4)(-1, -1, 1, 1); float4 min_values = 0; // Calculate the coordinates of the new boxes float4 pred_box = pred_ctr.s0101 + sign * halfone * pred_dims.s0101; #ifdef OFFSET // Possibly adjust the predicted boxes pred_box.s23 -= one; #endif // Possibly adjust the predicted boxes pred_box = CLAMP(pred_box, min_values, max_values); #ifdef SCALE_AFTER // Possibly scale the predicted boxes pred_box *= (float4)SCALE_AFTER; #endif // Possibly scale the predicted boxes // Store them into the output vstore4(QUANTIZE(pred_box, OFFSET_PRED_BOXES, SCALE_PRED_BOXES, DATA_TYPE, 4), 0, (__global DATA_TYPE *)pred_boxes.ptr); } #endif // Check for compile time constants