diff options
Diffstat (limited to 'runtimes/libs/ARMComputeEx/src/core/CL/cl_kernels/prelu_quantized.cl')
| -rw-r--r-- | runtimes/libs/ARMComputeEx/src/core/CL/cl_kernels/prelu_quantized.cl | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/runtimes/libs/ARMComputeEx/src/core/CL/cl_kernels/prelu_quantized.cl b/runtimes/libs/ARMComputeEx/src/core/CL/cl_kernels/prelu_quantized.cl new file mode 100644 index 000000000..5e0abd585 --- /dev/null +++ b/runtimes/libs/ARMComputeEx/src/core/CL/cl_kernels/prelu_quantized.cl @@ -0,0 +1,114 @@ +/* + * Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved + * Copyright (c) 2016-2018 ARM Limited. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include "helpers.h" +#define SUB(x, y) (x) - (y) + +#if defined(OFF_IN) && defined(OFF_ALPHA) && defined(OFF_OUT) && defined(SCALE_IN) && \ + defined(SCALE_ALPHA) && defined(SCALE_OUT) && defined(VEC_SIZE) + +#define VEC_FLOAT VEC_DATA_TYPE(float, VEC_SIZE) +#define VEC_INT VEC_DATA_TYPE(int, VEC_SIZE) +#define VEC_UCHAR VEC_DATA_TYPE(uchar, VEC_SIZE) +#define CONVERT_RTE(x, type) (convert_##type##_rte((x))) +#define CONVERT_DOWN(x, type) CONVERT_RTE(x, type) +#define SELECT_TYPE VEC_INT + +/** Returns result of prelu function implemented as below: + * f(input) = alpha * input for input < 0, f(input) = input for input >= 0. + * + * @attention Data type can be passed using the -DDATA_TYPE_IN compile flag, e.g. + * -DDATA_TYPE_IN=uchar + * @attention Vector size should be given as a preprocessor argument using -DVEC_SIZE=size. e.g. + * -DVEC_SIZE=16 + * @note Can only take uchar data types. + * + * @param[in] input1_ptr Pointer to the source image. Supported Data + * types : QASYMM8 + * @param[in] input1_stride_x Stride of the source image in X dimension (in + * bytes) + * @param[in] input1_step_x input1_stride_x * number of elements along X + * processed per workitem(in bytes) + * @param[in] input1_stride_y Stride of the source image in Y dimension (in + * bytes) + * @param[in] input1_step_y input1_stride_y * number of elements along Y + * processed per workitem(in bytes) + * @param[in] input1_stride_z Stride of the source tensor in Z dimension (in + * bytes) + * @param[in] input1_step_z input1_stride_z * number of elements along Z + * processed per workitem(in bytes) + * @param[in] input1_offset_first_element_in_bytes The offset of the first element in the source + * image + * @param[in] alpha_ptr Pointer to the source image. Supported Data + * types : QASYMM8 + * @param[in] alpha_stride_x Stride of the source image in X dimension (in + * bytes) + * @param[in] alpha_step_x input2_stride_x * number of elements along X + * processed per workitem(in bytes) + * @param[in] alpha_stride_y Stride of the source image in Y dimension (in + * bytes) + * @param[in] alpha_step_y input2_stride_y * number of elements along Y + * processed per workitem(in bytes) + * @param[in] alpha_stride_z Stride of the source tensor in Z dimension (in + * bytes) + * @param[in] alpha_step_z input2_stride_z * number of elements along Z + * processed per workitem(in bytes) + * @param[in] alpha_offset_first_element_in_bytes The offset of the first element in the source + * image + * @param[out] output_ptr Pointer to the destination image. Supported + * data types: same as @p input_ptr + * @param[in] output_stride_x Stride of the destination image in X dimension + * (in bytes) + * @param[in] output_step_x output_stride_x * number of elements along X + * processed per workitem(in bytes) + * @param[in] output_stride_y Stride of the destination image in Y dimension + * (in bytes) + * @param[in] output_step_y output_stride_y * number of elements along Y + * processed per workitem(in bytes) + * @param[in] output_stride_z Stride of the source tensor in Z dimension (in + * bytes) + * @param[in] output_step_z output_stride_z * number of elements along Z + * processed per workitem(in bytes) + * @param[in] output_offset_first_element_in_bytes The offset of the first element in the + * destination image + */ +__kernel void prelu_qasymm8(TENSOR3D_DECLARATION(input), TENSOR3D_DECLARATION(alpha), + TENSOR3D_DECLARATION(output)) +{ + // Get pixels pointer + Tensor3D input = CONVERT_TO_TENSOR3D_STRUCT(input); + Tensor3D alpha = CONVERT_TO_TENSOR3D_STRUCT(alpha); + Tensor3D output = CONVERT_TO_TENSOR3D_STRUCT(output); + + VEC_INT in_vec = CONVERT(VLOAD(VEC_SIZE)(0, (__global uchar *)input.ptr), VEC_INT); + VEC_INT alpha_vec = CONVERT(VLOAD(VEC_SIZE)(0, (__global uchar *)alpha.ptr), VEC_INT); + + in_vec = SUB(in_vec, (VEC_INT)((int)OFF_IN)); + alpha_vec = SUB(alpha_vec, (VEC_INT)((int)OFF_ALPHA)); + + const VEC_FLOAT inf32 = CONVERT(in_vec, VEC_FLOAT) * (VEC_FLOAT)((float)SCALE_IN); + const VEC_FLOAT alphaf32 = CONVERT(alpha_vec, VEC_FLOAT) * (VEC_FLOAT)((float)SCALE_ALPHA); + const VEC_FLOAT outf32 = + select(inf32, inf32 * alphaf32, CONVERT(inf32 < (VEC_FLOAT)0, SELECT_TYPE)); + const VEC_FLOAT qresf32 = outf32 / ((VEC_FLOAT)(float)SCALE_OUT) + ((VEC_FLOAT)((float)OFF_OUT)); + const VEC_UCHAR res = CONVERT_SAT(CONVERT_DOWN(qresf32, VEC_INT), VEC_UCHAR); + + VSTORE(VEC_SIZE) + (res, 0, (__global uchar *)output.ptr); +} + +#endif // defined(OFF_IN) && defined(OFF_ALPHA) && defined(OFF_OUT) && defined(SCALE_IN) && + // defined(SCALE_ALPHA) && defined(SCALE_OUT) && defined(VEC_SIZE) |