From 17220e2eb49e75b85f2b802489a44b8019997c25 Mon Sep 17 00:00:00 2001 From: Michalis Spyrou Date: Wed, 12 Sep 2018 13:35:38 +0100 Subject: COMPMID-1507 Add support for QASYMM8 in CLScaleKernel Change-Id: I4a32e47e6d9152633668cf0e14db88fc8c26f7ea Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/148167 Tested-by: bsgcomp Reviewed-by: Michele DiGiorgio --- src/core/CL/cl_kernels/scale_quantized.cl | 169 ++++++++++++++++++++++++++++++ 1 file changed, 169 insertions(+) create mode 100644 src/core/CL/cl_kernels/scale_quantized.cl (limited to 'src/core/CL/cl_kernels/scale_quantized.cl') diff --git a/src/core/CL/cl_kernels/scale_quantized.cl b/src/core/CL/cl_kernels/scale_quantized.cl new file mode 100644 index 0000000000..3211e7efa1 --- /dev/null +++ b/src/core/CL/cl_kernels/scale_quantized.cl @@ -0,0 +1,169 @@ +/* + * Copyright (c) 2018 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" +#include "warp_helpers_quantized.h" + +/** Transforms four 2D coordinates. This is used to map the output coordinates to the input coordinates. + * + * @param[in] coord 2D coordinates to transform. + * @param[in] scale input/output scale ratio + * + * @return a float8 containing 4 2D transformed values in the input image. + */ +inline const float8 transform_bilinear_quantized(const float2 coord, const float2 scale) +{ + const float4 in_x_coords = (float4)(coord.s0, 1 + coord.s0, 2 + coord.s0, 3 + coord.s0); +#ifdef SAMPLING_POLICY_TOP_LEFT + const float4 new_x = in_x_coords * (float4)(scale.s0); + const float4 new_y = (float4)(coord.s1 * scale.s1); + return (float8)(new_x.s0, new_y.s0, new_x.s1, new_y.s1, new_x.s2, new_y.s2, new_x.s3, new_y.s3); +#elif SAMPLING_POLICY_CENTER + const float4 new_x = (in_x_coords + ((float4)(0.5f))) * (float4)(scale.s0) - (float4)(0.5f); + const float4 new_y = (float4)((coord.s1 + 0.5f) * scale.s1 - 0.5f); + return (float8)(new_x.s0, new_y.s0, new_x.s1, new_y.s1, new_x.s2, new_y.s2, new_x.s3, new_y.s3); +#else /* SAMPLING_POLICY */ +#error("Unsupported sampling policy"); +#endif /* SAMPLING_POLICY */ +} + +/** Performs an affine transformation on an image interpolating with the BILINEAR method. + * + * @note Sampling policy to used is passed as -DSAMPLING_POLICY_(TYPE) e.g. -DSAMPLING_POLICY_TOP_LEFT + * @note Scale value for QASYMM8 data type to used is passed as -DSCALE= e.g. -DSCALE=0.5 + * @note Offset value for QASYMM8 data type to used is passed as -DOFFSET= e.g. -DOFFSET=1 + * + * @param[in] in_ptr Pointer to the source image. Supported data types: QASYMM8. + * @param[in] in_stride_x Stride of the source image in X dimension (in bytes) + * @param[in] in_step_x src_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] in_stride_y Stride of the source image in Y dimension (in bytes) + * @param[in] in_step_y src_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] in_offset_first_element_in_bytes The offset of the first element in the source image + * @param[out] out_ptr Pointer to the destination image. Supported data types: U8, S16. (Must be the same as the input) + * @param[in] out_stride_x Stride of the destination image in X dimension (in bytes) + * @param[in] out_step_x dst_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] out_stride_y Stride of the destination image in Y dimension (in bytes) + * @param[in] out_step_y dst_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] out_offset_first_element_in_bytes The offset of the first element in the destination image + * @param[in] input_width Input image width + * @param[in] input_height Input image height + * @param[in] scale_x The scale factor along x dimension + * @param[in] scale_y The scale factor along y dimension + */ +__kernel void scale_bilinear_quantized_nchw( + IMAGE_DECLARATION(in), + IMAGE_DECLARATION(out), + const float input_width, + const float input_height, + const float scale_x, + const float scale_y) +{ + Image in = CONVERT_TO_IMAGE_STRUCT_NO_STEP(in); + Image out = CONVERT_TO_IMAGE_STRUCT(out); + const float2 r = (float2)(scale_x, scale_y); + const float8 tc = transform_bilinear_quantized(get_current_coords_quantized(), r); + vstore4(bilinear_interpolate_with_border_quantized(&in, tc, input_width, input_height, BORDER_SIZE, SCALE, OFFSET), 0, (__global DATA_TYPE *)out.ptr); +} + +/** Performs scale on an image interpolating with the BILINEAR method. (NHWC) + * + * @note Sampling policy to be used is passed as -DSAMPLING_POLICY_(TYPE) e.g. -DSAMPLING_POLICY_TOP_LEFT + * @note Scale value for QASYMM8 data type to used is passed as -DSCALE= e.g. -DSCALE=0.5 + * @note Offset value for QASYMM8 data type to used is passed as -DOFFSET= e.g. -DOFFSET=1 + * @note If border mode replicate is used, is should be passed as -DBORDER_MODE_REPLICATE + * + * @param[in] in_ptr Pointer to the source image. Supported data types: QASYMM8. + * @param[in] in_stride_x Stride of the source image in X dimension (in bytes) + * @param[in] in_step_x src_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] in_stride_y Stride of the source image in Y dimension (in bytes) + * @param[in] in_step_y src_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] in_stride_z Stride of the source image in Z dimension (in bytes) + * @param[in] in_step_z src_stride_z * number of elements along Z processed per workitem(in bytes) + * @param[in] in_offset_first_element_in_bytes The offset of the first element in the source image + * @param[out] out_ptr Pointer to the destination image. Supported data types: same as @p in_ptr + * @param[in] out_stride_x Stride of the destination image in X dimension (in bytes) + * @param[in] out_step_x dst_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] out_stride_y Stride of the destination image in Y dimension (in bytes) + * @param[in] out_step_y dst_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] out_stride_z Stride of the destination image in Z dimension (in bytes) + * @param[in] out_step_z dst_stride_y * number of elements along Z processed per workitem(in bytes) + * @param[in] out_offset_first_element_in_bytes The offset of the first element in the destination image + * @param[in] input_width Input image width + * @param[in] input_height Input image height + * @param[in] scale_x The scale factor along x dimension + * @param[in] scale_y The scale factor along y dimension + */ +__kernel void scale_bilinear_quantized_nhwc( + TENSOR3D_DECLARATION(in), + TENSOR3D_DECLARATION(out), + const float input_width, + const float input_height, + const float scale_x, + const float scale_y) +{ + Tensor3D in = CONVERT_TO_TENSOR3D_STRUCT_NO_STEP(in); + Tensor3D out = CONVERT_TO_TENSOR3D_STRUCT(out); + +#ifdef SAMPLING_POLICY_TOP_LEFT + const float new_x = get_global_id(1) * scale_x; + const float new_y = get_global_id(2) * scale_y; +#elif SAMPLING_POLICY_CENTER + const float new_x = (get_global_id(1) + 0.5f) * scale_x - 0.5f; + const float new_y = (get_global_id(2) + 0.5f) * scale_y - 0.5f; +#else /* SAMPLING_POLICY */ +#error("Unsupported sampling policy"); +#endif /* SAMPLING_POLICY */ + + const float new_xf = floor(new_x); + const float new_yf = floor(new_y); + float clamped_x = clamp(new_xf, 0.0f, input_width - 1); + float clamped_x1 = clamp(new_xf + 1, 0.0f, input_width - 1); + float clamped_x_ = clamped_x; + float clamped_x1_ = clamped_x1; + const float clamped_y = clamp(new_yf, 0.0f, input_height - 1); + const float clamped_y1 = clamp(new_yf + 1, 0.0f, input_height - 1); + +#ifndef BORDER_MODE_REPLICATE + clamped_x1 = select(clamped_x1, 0.0f - BORDER_SIZE, new_yf + 1 < 0.f || new_yf + 1 > input_height - 1 || new_xf + 1 < 0.f || new_xf + 1 > input_width - 1); + clamped_x_ = select(clamped_x_, 0.0f - BORDER_SIZE, new_yf + 1 > input_height - 1 || new_xf < 0.f || new_xf > input_width - 1); + clamped_x = select(clamped_x, 0.0f - BORDER_SIZE, new_yf < 0.f || new_yf > input_height - 1 || new_xf < 0.f || new_xf > input_width - 1); + clamped_x1_ = select(clamped_x1_, 0.0f - BORDER_SIZE, new_xf + 1 < 0.f || new_xf + 1 > input_width - 1 || new_yf < 0.f || new_yf > input_height - 1); +#endif /* BORDER_MODE_REPLICATE */ + + int4 ins = (int4)(*((__global DATA_TYPE *)tensor3D_offset(&in, get_global_id(0), convert_int(clamped_x), convert_int(clamped_y))), + *((__global DATA_TYPE *)tensor3D_offset(&in, get_global_id(0), convert_int(clamped_x1_), convert_int(clamped_y))), + *((__global DATA_TYPE *)tensor3D_offset(&in, get_global_id(0), convert_int(clamped_x_), convert_int(clamped_y1))), + *((__global DATA_TYPE *)tensor3D_offset(&in, get_global_id(0), convert_int(clamped_x1), convert_int(clamped_y1)))); + + const float a = new_x - new_xf; + const float b = 1.f - a; + const float a1 = new_y - new_yf; + const float b1 = 1.f - a1; + const float4 insf32 = convert_float4(ins - (int4)OFFSET) * (float4)SCALE; + + const float fr = ((insf32.s0 * b * b1) + (insf32.s1 * a * b1) + (insf32.s2 * b * a1) + (insf32.s3 * a * a1)); + + uchar res = convert_uchar_sat(convert_int_sat_rtp(fr / SCALE) + OFFSET); + + *((__global DATA_TYPE *)out.ptr) = res; +} -- cgit v1.2.1