| /* |
| * Copyright (c) 2017-2020 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" |
| |
| #if defined(DATA_TYPE) && defined(INITIAL_VALUE) |
| #define VEC_TYPE(VEC_SIZE) VEC_DATA_TYPE(DATA_TYPE, VEC_SIZE) |
| |
| #if defined(OFFSET_IN1) && defined(OFFSET_OUT) && defined(SCALE_IN1) && defined(SCALE_OUT) |
| #define VEC_FLOAT(VEC_SIZE) VEC_DATA_TYPE(float, VEC_SIZE) |
| #define VEC_INT(VEC_SIZE) VEC_DATA_TYPE(int, VEC_SIZE) |
| #define CONVERT_RTE(x, type) (convert_##type##_rte((x))) |
| #define CONVERT_DOWN(x, type) CONVERT_RTE(x, type) |
| #define REQUANTIZE(VEC_SIZE, input, in_offset, out_offset, in_scale, out_scale, res) \ |
| { \ |
| const VEC_FLOAT(VEC_SIZE) in_f32 = (CONVERT(input, VEC_FLOAT(VEC_SIZE)) - (VEC_FLOAT(VEC_SIZE))((float)in_offset)) * (VEC_FLOAT(VEC_SIZE))((float)in_scale); \ |
| const VEC_FLOAT(VEC_SIZE) out_f32 = in_f32 / ((VEC_FLOAT(VEC_SIZE))(float)out_scale) + ((VEC_FLOAT(VEC_SIZE))((float)out_offset)); \ |
| res = CONVERT_SAT(CONVERT_DOWN(out_f32, VEC_INT(VEC_SIZE)), VEC_TYPE(VEC_SIZE)); \ |
| } |
| #endif /* defined(OFFSET_IN1) && defined(OFFSET_OUT) && defined(SCALE_IN1) && defined(SCALE_OUT) */ |
| |
| #if defined(POOL_AVG) |
| #define POOL_OP(x, y) ((x) + (y)) |
| #else /* defined(POOL_AVG) */ |
| #define POOL_OP(x, y) (max((x), (y))) |
| #endif /* defined(POOL_AVG) */ |
| |
| #define DIV_OP(x, y) (x * (1.f / y)) |
| |
| #if defined(POOL_L2) |
| #error "L2 pooling is not supported" |
| #endif /* defined(POOL_L2) */ |
| |
| int calculate_avg_scale(const int pool_size_x, const int pool_size_y, const int upper_bound_w, const int upper_bound_h, |
| const int pad_x, const int pad_y, const int stride_x, const int stride_y) |
| { |
| int start_x = get_global_id(0) * stride_x - pad_x; |
| int start_y = get_global_id(1) * stride_y - pad_y; |
| const int end_x = min(start_x + pool_size_x, upper_bound_w); |
| const int end_y = min(start_y + pool_size_y, upper_bound_h); |
| #if defined(EXCLUDE_PADDING) |
| start_x = max(0, start_x); |
| start_y = max(0, start_y); |
| #endif /* defined(EXCLUDE_PADDING) */ |
| return ((end_y - start_y) * (end_x - start_x)); |
| } |
| |
| /** Performs a pooling function of pool size equal to N (NCHW) |
| * |
| * @note Pool sizes must be passed using -DPOOL_SIZE_X and -DPOOL_SIZE_Y e.g. -DPOOL_SIZE_X=13; |
| * @note In case of average pooling the following information must be passed at compile time: |
| * -DPOOL_AVG must be provided otherwise max pooling will be performed. |
| * -DMAX_WIDTH and -DMAX_HEIGHT which are the maximum accessible indeces in x and y dimensions (width + pad) |
| * -DSTRIDE_X and -DSTRIDE_Y which are the steps of the window along the x and y directions |
| * -DPAD_X and -DPAD_Y which are the pooling paddings in x and y dimension |
| * @note Input data type must be passed at compile time using -DDAT_TYPE=type, e.g. -DDATA_TYPE=uchar |
| * @note The initial value for the pooling operation must be passed at compile time using -DINITIAL_VALUE e.g. -DINITIAL_VALUE=0 |
| * |
| * @param[in] input_ptr Pointer to the source image. Supported data types: QASYMM8/QASYMM8_SIGNED |
| * @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_stride_z Stride of the source tensor in Z dimension (in bytes) |
| * @param[in] input_step_z input_stride_z * number of elements along Z 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] 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 pooling_layer_MxN_quantized_nchw( |
| TENSOR3D_DECLARATION(input), |
| TENSOR3D_DECLARATION(output)) |
| { |
| // Get pixels pointer |
| Tensor3D input = CONVERT_TO_TENSOR3D_STRUCT(input); |
| Tensor3D output = CONVERT_TO_TENSOR3D_STRUCT(output); |
| |
| int8 vdata = INITIAL_VALUE; |
| int sdata = INITIAL_VALUE; |
| |
| // Load data |
| for(int y = 0; y < POOL_SIZE_Y; y++) |
| { |
| int x = 0; |
| for(; x <= ((int)POOL_SIZE_X - 8); x += 8) |
| { |
| VEC_TYPE(8) |
| data = vload8(0, (__global DATA_TYPE *)tensor3D_offset(&input, x, y, 0)); |
| int8 data0 = convert_int8(data); |
| vdata = POOL_OP(vdata, data0); |
| } |
| |
| // Leftover |
| for(; x < (int)POOL_SIZE_X; ++x) |
| { |
| DATA_TYPE data = *((__global DATA_TYPE *)tensor3D_offset(&input, x, y, 0)); |
| int data0 = convert_int(data); |
| sdata = POOL_OP(sdata, data0); |
| } |
| } |
| |
| // Reduce result |
| int4 reduce4 = POOL_OP(vdata.s0123, vdata.s4567); |
| int2 reduce2 = POOL_OP(reduce4.s01, reduce4.s23); |
| int res = POOL_OP(reduce2.s0, reduce2.s1); |
| res = POOL_OP(res, sdata); |
| |
| #if defined(POOL_AVG) |
| res = round(DIV_OP(res, calculate_avg_scale(POOL_SIZE_X, POOL_SIZE_Y, MAX_WIDTH, MAX_HEIGHT, PAD_X, PAD_Y, STRIDE_X, STRIDE_Y))); |
| #endif /* defined(POOL_AVG) */ |
| |
| DATA_TYPE result_q8 = CONVERT(res, DATA_TYPE); |
| |
| #if defined(OFFSET_IN1) && defined(OFFSET_OUT) && defined(SCALE_IN1) && defined(SCALE_OUT) |
| |
| const float result_f32 = convert_float(result_q8); |
| const float input_offset = (float)OFFSET_IN1; |
| const float input_scale = (float)SCALE_IN1; |
| const float scale_out = (float)SCALE_OUT; |
| const float offset_out = (float)OFFSET_OUT; |
| const float in_f32 = (result_f32 - input_offset) * input_scale; |
| const float out_f32 = in_f32 / scale_out + offset_out; |
| result_q8 = CONVERT_SAT(convert_int_rte(out_f32), DATA_TYPE); |
| |
| #endif /* defined(OFFSET_IN1) && defined(OFFSET_OUT) && defined(SCALE_IN1) && defined(SCALE_OUT) */ |
| |
| *(__global DATA_TYPE *)output.ptr = result_q8; |
| } |
| |
| #if defined(VEC_SIZE) && defined(VEC_SIZE_LEFTOVER) && defined(SRC_WIDTH) && defined(SRC_HEIGHT) && defined(DST_CHANNELS) && defined(DST_HEIGHT) && defined(DST_BATCH_SIZE) && defined(ACC_DATA_TYPE) |
| /** Performs pooling layer of size equal to MxN. This OpenCL kernel can perform the following pooling types: |
| * -# max, -DPOOL_MAX must be passed at compile time |
| * -# average, -DPOOL_AVG must be passed at compile time. If padding has to be expluded, -DEXCLUDE_PADDING should be passed at compile time |
| * |
| * @note Datatype must be passed at compile type using -DDATA_TYPE e.g. -DDATA_TYPE=uchar. Supported data types are QASYMM8/QASYMM8_SIGNED |
| * @note Accumulation data type must be passed at compile time using -DACC_DATA_TYPE e.g. -DACC_DATA_TYPE=int |
| * @note Pool size must be passed at compile time using -DPOOL_SIZE_X and -DPOOL_SIZE_Y. e.g. -DPOOL_SIZE_X=4, -DPOOL_SIZE_Y=4 |
| * @note Input tensor width and height must be passed at compile time using -DSRC_WIDTH and -DSRC_HEIGHT |
| * @note Output tensor height, channels and batch size must be passed at compile time using -DDST_HEIGHT, -DDST_CHANNELS and -DDST_BATCH_SIZE |
| * @note Pool strides must be passed at compile time using -DSTRIDE_X and -DSTRIDE_Y which are the steps of the window along the x and y directions |
| * @note Pool pads must be passed at compile time using -DPAD_X and -DPAD_Y |
| * @note Vector size must be passed at compile time using -DVEC_SIZE=size. e.g. -DVEC_SIZE=16 |
| * @note Leftover vector size must be passed at compile time using -DVEC_SIZE_LEFTOVER. e.g. -DVEC_SIZE_LEFTOVER=3. It is defined as the remainder between the input's first dimension and VEC_SIZE |
| * @note The initial value for the pooling operation must be passed at compile time using -DINITIAL_VALUE e.g. -DINITIAL_VALUE=0 |
| * @note If the output has be requantized, -DOFFSET_IN1, -DOFFSET_OUT, -DSCALE_IN1 and -DSCALE_OUT muste be passed at compile time |
| * |
| * @param[in] input_ptr Pointer to the source image. Supported data types: QASYMM8/QASYMM8_SIGNED |
| * @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_stride_z Stride of the source tensor in Z dimension (in bytes) |
| * @param[in] input_step_z input_stride_z * number of elements along Z processed per workitem(in bytes) |
| * @param[in] input_stride_w Stride of the source tensor in W dimension (in bytes) |
| * @param[in] input_step_w input_stride_w * number of elements along W 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] output_ptr Pointer to the destination image. Supported data types: same as @p input_ptr |
| * @param[in] output_stride_x Stride of the destination tensor 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 tensor 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 destination 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_stride_w Stride of the destination tensor in W dimension (in bytes) |
| * @param[in] output_step_w output_stride_w * number of elements along W 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 pooling_layer_MxN_quantized_nhwc( |
| TENSOR4D_DECLARATION(input), |
| TENSOR4D_DECLARATION(output)) |
| { |
| // Note: If C is not multiple of VEC_SIZE, we shift back of VEC_SIZE_LEFTOVER elements to compute the leftover elements for get_global_id(0) == 0 |
| // Note: If C is less than VEC_SIZE, VEC_SIZE should be SHRINKED to the closest smaller VEC_SIZE. This operation is performed on the host side |
| int offset_c = max((int)(get_global_id(0) * VEC_SIZE - (VEC_SIZE - VEC_SIZE_LEFTOVER) % VEC_SIZE), 0) * sizeof(DATA_TYPE); |
| int idx_out_w = get_global_id(1); |
| #if DST_BATCH_SIZE != 1 |
| // If batch size != 1, the batch size dimension is collapsed over the height dimension |
| int idx_out_h = get_global_id(2) % DST_HEIGHT; |
| int idx_out_n = get_global_id(2) / DST_HEIGHT; |
| #else //DST_BATCH_SIZE != 1 |
| int idx_out_h = get_global_id(2); |
| int idx_out_n = 0; |
| #endif // DST_BATCH_SIZE != 1 |
| |
| int idx_in_w = idx_out_w * STRIDE_X - PAD_X; |
| int idx_in_h = idx_out_h * STRIDE_Y - PAD_Y; |
| |
| __global unsigned char *in_base_ptr = input_ptr + input_offset_first_element_in_bytes + |
| offset_c + |
| idx_out_n * input_stride_w; |
| |
| __global unsigned char *out_base_ptr = output_ptr + output_offset_first_element_in_bytes + |
| offset_c + |
| idx_out_w * output_stride_y + |
| idx_out_h * output_stride_z + |
| idx_out_n * output_stride_w; |
| |
| int pool_x_s = max((int)0, -idx_in_w); |
| int pool_x_e = min((int)POOL_SIZE_X, (int)SRC_WIDTH - idx_in_w); |
| int pool_y_s = max((int)0, -idx_in_h); |
| int pool_y_e = min((int)POOL_SIZE_Y, (int)SRC_HEIGHT - idx_in_h); |
| |
| #if defined(POOL_AVG) && defined(EXCLUDE_PADDING) |
| int filter_size = 0; |
| #elif defined(POOL_AVG) && !defined(EXCLUDE_PADDING) // defined(POOL_AVG) && defined(EXCLUDE_PADDING) |
| int filter_size = POOL_SIZE_X * POOL_SIZE_Y; |
| #endif // defined(POOL_AVG) && !defined(EXCLUDE_PADDING) |
| |
| VEC_DATA_TYPE(ACC_DATA_TYPE, VEC_SIZE) |
| res0 = INITIAL_VALUE; |
| |
| for(int y = pool_y_s; y < pool_y_e; ++y) |
| { |
| for(int x = pool_x_s; x < pool_x_e; ++x) |
| { |
| VEC_DATA_TYPE(DATA_TYPE, VEC_SIZE) data; |
| VEC_DATA_TYPE(ACC_DATA_TYPE, VEC_SIZE) data0; |
| |
| data = VLOAD(VEC_SIZE)(0, (__global DATA_TYPE *)(in_base_ptr + (x + idx_in_w) * input_stride_y + (y + idx_in_h) * input_stride_z)); |
| data0 = CONVERT(data, VEC_DATA_TYPE(ACC_DATA_TYPE, VEC_SIZE)); |
| |
| res0 = POOL_OP(res0, data0); |
| |
| #if defined(POOL_AVG) && defined(EXCLUDE_PADDING) |
| filter_size++; |
| #endif // defined(POOL_AVG) && defined(EXCLUDE_PADDING) |
| } |
| } |
| |
| #if defined(POOL_AVG) |
| res0 = (res0 + (VEC_DATA_TYPE(ACC_DATA_TYPE, VEC_SIZE))(filter_size >> 1)) / filter_size; |
| #endif // defined(POOL_AVG) |
| |
| VEC_DATA_TYPE(DATA_TYPE, VEC_SIZE) out_q0 = CONVERT(res0, VEC_DATA_TYPE(DATA_TYPE, VEC_SIZE)); |
| #if defined(OFFSET_IN1) && defined(OFFSET_OUT) && defined(SCALE_IN1) && defined(SCALE_OUT) |
| REQUANTIZE(VEC_SIZE, out_q0, OFFSET_IN1, OFFSET_OUT, SCALE_IN1, SCALE_OUT, out_q0); |
| #endif /* defined(OFFSET_IN1) && defined(OFFSET_OUT) && defined(SCALE_IN1) && defined(SCALE_OUT) */ |
| |
| // Store result |
| STORE_VECTOR_SELECT(out_q, DATA_TYPE, out_base_ptr, VEC_SIZE, VEC_SIZE_LEFTOVER, ((VEC_SIZE_LEFTOVER != 0) && get_global_id(0) == 0)); |
| } |
| #endif // defined(VEC_SIZE) && defined(VEC_SIZE_LEFTOVER) && defined(SRC_WIDTH) && defined(SRC_HEIGHT) && defined(DST_CHANNELS) && defined(DST_HEIGHT) && defined(DST_BATCH_SIZE) && defined(SELECT_DATA_TYPE) && defined(ACC_DATA_TYPE) |
| #endif // defined(DATA_TYPE) && defined(INITIAL_VALUE) |