Anthony Barbier | 7068f99 | 2017-10-26 15:23:08 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2017 ARM Limited. |
| 3 | * |
| 4 | * SPDX-License-Identifier: MIT |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to |
| 8 | * deal in the Software without restriction, including without limitation the |
| 9 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| 10 | * sell copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in all |
| 14 | * copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 22 | * SOFTWARE. |
| 23 | */ |
| 24 | layout(local_size_x = LOCAL_SIZE_X, local_size_y = LOCAL_SIZE_Y, local_size_z = LOCAL_SIZE_Z) in; |
| 25 | |
zhenglin | 08d5421 | 2017-12-27 14:33:06 +0800 | [diff] [blame] | 26 | #include "helpers_cs.h" |
Anthony Barbier | 7068f99 | 2017-10-26 15:23:08 +0100 | [diff] [blame] | 27 | |
| 28 | #ifdef DATA_TYPE_FP32 |
| 29 | precision highp float; |
| 30 | #elif defined(DATA_TYPE_FP16) |
| 31 | #if defined(LOGISTIC) || defined(TANH) || defined(SRELU) || defined(SQRT) |
| 32 | precision highp float; |
| 33 | #else /*LOGISTIC_TANH_SRELU_SQRT*/ |
| 34 | precision mediump float; |
| 35 | #endif /*LOGISTIC_TANH_SRELU_SQRT*/ |
| 36 | #endif /*DATA_TYPE_FP32*/ |
| 37 | |
| 38 | #define ABS_OP(a) abs((a)) |
| 39 | #define ADD_OP(a, b) ((a) + (b)) |
| 40 | #define SUB_OP(a, b) ((a) - (b)) |
| 41 | #define MUL_OP(a, b) ((a) * (b)) |
| 42 | #define MLA_OP(a, b, c) ((b) * (c) + (a)) |
| 43 | #define DIV_OP(a, b) ((a) / (b)) |
| 44 | #define EXP_OP(a) exp((a)) |
| 45 | #define LOG_OP(a) log((a)) |
| 46 | #define SQRT_OP(a) sqrt((a)) |
| 47 | #define CONST_ONE (1.f) |
| 48 | |
| 49 | // Logistic Activation |
| 50 | float logistic_op(float x) |
| 51 | { |
| 52 | return DIV_OP(CONST_ONE, ADD_OP(CONST_ONE, EXP_OP(-x))); |
| 53 | } |
| 54 | // Hyperbolic Tangent Activation |
| 55 | float tanh_op(float x) |
| 56 | { |
| 57 | float tmp = float(B_VAL) * x; |
| 58 | if(tmp > 10.f) |
| 59 | { |
| 60 | return MUL_OP(float(A_VAL), 1.f); |
| 61 | } |
| 62 | else if(tmp < -10.f) |
| 63 | { |
| 64 | return MUL_OP(float(A_VAL), -1.f); |
| 65 | } |
| 66 | else |
| 67 | { |
| 68 | return MUL_OP(float(A_VAL), tanh(tmp + 0.000001f)); |
| 69 | } |
| 70 | } |
| 71 | // RELU Tangent Activation |
| 72 | float relu_op(float x) |
| 73 | { |
| 74 | return max(0.f, x); |
| 75 | } |
| 76 | // Bounded RELU Activation |
| 77 | float brelu_op(float x) |
| 78 | { |
| 79 | return min(float(A_VAL), max(float(0.0), x)); |
| 80 | } |
| 81 | // Lower Upper Bounded RELU Activation |
| 82 | float lu_brelu_op(float x) |
| 83 | { |
| 84 | return min(max(x, float(B_VAL)), float(A_VAL)); |
| 85 | } |
| 86 | // Leaky RELU Activation |
| 87 | float lrelu_op(float x) |
| 88 | { |
| 89 | return (x > float(0.0)) ? x : MUL_OP(float(A_VAL), x); |
| 90 | } |
| 91 | // Soft RELU Activation |
| 92 | float srelu_op(float x) |
| 93 | { |
| 94 | return LOG_OP(ADD_OP(CONST_ONE, EXP_OP(x))); |
| 95 | } |
| 96 | // Absolute Activation |
| 97 | float abs_op(float x) |
| 98 | { |
| 99 | return ABS_OP(x); |
| 100 | } |
| 101 | // Square Activation |
| 102 | float square_op(float x) |
| 103 | { |
| 104 | return MUL_OP(x, x); |
| 105 | } |
| 106 | // Square-root Activation |
| 107 | float sqrt_op(float x) |
| 108 | { |
| 109 | return SQRT_OP(x); |
| 110 | } |
| 111 | // Linear Activation |
| 112 | float linear_op(float x) |
| 113 | { |
| 114 | return MLA_OP(float(B_VAL), float(A_VAL), x); |
| 115 | } |
| 116 | |
Anthony Barbier | 7068f99 | 2017-10-26 15:23:08 +0100 | [diff] [blame] | 117 | /** This performs an activation function floating point inputs. |
| 118 | * |
zhenglin | 08d5421 | 2017-12-27 14:33:06 +0800 | [diff] [blame] | 119 | * @note The data type must be passed at compile time using "#define DATA_TYPE_NAME". e.g. "#define DATA_TYPE_FP32" |
Anthony Barbier | 7068f99 | 2017-10-26 15:23:08 +0100 | [diff] [blame] | 120 | * @note Activation function should be given as a preprocessor argument using "#define act_name". e.g. "#define TANH" |
| 121 | * @note A, B variables required by some activation functions are set using A_VAL= and B_VAL= respectively. |
| 122 | * |
zhenglin | 08d5421 | 2017-12-27 14:33:06 +0800 | [diff] [blame] | 123 | * @param[in] src_ptr Pointer to the source tensor. Supported data types: F16/F32 |
| 124 | * @param[in] src_attrs The attributes of the source tensor |
| 125 | * @param[out] dst_ptr Pointer to the destination tensor. Supported data types: same as @p src_ptr |
| 126 | * @param[in] dst_attrs The attributes of the destination tensor |
Anthony Barbier | 7068f99 | 2017-10-26 15:23:08 +0100 | [diff] [blame] | 127 | */ |
zhenglin | 08d5421 | 2017-12-27 14:33:06 +0800 | [diff] [blame] | 128 | SHADER_PARAMS_DECLARATION |
| 129 | { |
| 130 | Tensor3DAttributes src_attrs; |
| 131 | Tensor3DAttributes dst_attrs; |
| 132 | }; |
| 133 | |
| 134 | #ifdef DATA_TYPE_FP32 |
| 135 | TENSOR_DECLARATION(1, srcBuffer, float, src_ptr, src_shift, 2, readonly); |
| 136 | TENSOR_DECLARATION(2, dstBuffer, float, dst_ptr, dst_shift, 2, writeonly); |
| 137 | |
Anthony Barbier | 7068f99 | 2017-10-26 15:23:08 +0100 | [diff] [blame] | 138 | void main(void) |
| 139 | { |
zhenglin | 08d5421 | 2017-12-27 14:33:06 +0800 | [diff] [blame] | 140 | Tensor3DIterator src_iter = CONVERT_TO_TENSOR3D_ITERATOR(src_attrs, src_shift); |
| 141 | Tensor3DIterator dst_iter = CONVERT_TO_TENSOR3D_ITERATOR(dst_attrs, dst_shift); |
Anthony Barbier | 7068f99 | 2017-10-26 15:23:08 +0100 | [diff] [blame] | 142 | |
zhenglin | 08d5421 | 2017-12-27 14:33:06 +0800 | [diff] [blame] | 143 | float data = LOAD_CURRENT_ITEM(src_ptr, src_iter); |
Anthony Barbier | 7068f99 | 2017-10-26 15:23:08 +0100 | [diff] [blame] | 144 | float data_out = 0.f; |
| 145 | // Perform activation |
Anthony Barbier | 7068f99 | 2017-10-26 15:23:08 +0100 | [diff] [blame] | 146 | #ifdef LOGISTIC |
| 147 | data_out = logistic_op(data); |
| 148 | #elif defined(TANH) /*LOGISTIC*/ |
| 149 | data_out = tanh_op(data); |
| 150 | #elif defined(RELU) /*RELU*/ |
| 151 | data_out = relu_op(data); |
| 152 | #elif defined(BRELU) /*BRELU*/ |
| 153 | data_out = brelu_op(data); |
| 154 | #elif defined(LU_BRELU) /*LU_BRELU*/ |
| 155 | data_out = lu_brelu_op(data); |
| 156 | #elif defined(LRELU) /*LRELU*/ |
| 157 | data_out = lrelu_op(data); |
| 158 | #elif defined(SRELU) /*SRELU*/ |
| 159 | data_out = srelu_op(data); |
| 160 | #elif defined(ABS) /*ABS*/ |
| 161 | data_out = abs_op(data); |
| 162 | #elif defined(SQUARE) /*SQUARE*/ |
| 163 | data_out = square_op(data); |
| 164 | #elif defined(SQRT) /*SQRT*/ |
| 165 | data_out = sqrt_op(data); |
| 166 | #elif defined(LINEAR) /*LINEAR*/ |
| 167 | data_out = linear_op(data); |
| 168 | #else /*LOGISTIC*/ |
| 169 | #error Activation function not provided |
| 170 | #endif /*LOGISTIC*/ |
| 171 | |
zhenglin | 08d5421 | 2017-12-27 14:33:06 +0800 | [diff] [blame] | 172 | STORE_CURRENT_ITEM(dst_ptr, dst_iter, data_out); |
Anthony Barbier | 7068f99 | 2017-10-26 15:23:08 +0100 | [diff] [blame] | 173 | } |
| 174 | |
| 175 | #elif defined(DATA_TYPE_FP16) |
zhenglin | 08d5421 | 2017-12-27 14:33:06 +0800 | [diff] [blame] | 176 | TENSOR_DECLARATION(1, srcBuffer, uint, src_ptr, src_shift, 2, readonly); |
| 177 | TENSOR_DECLARATION(2, dstBuffer, uint, dst_ptr, dst_shift, 2, writeonly); |
Anthony Barbier | 7068f99 | 2017-10-26 15:23:08 +0100 | [diff] [blame] | 178 | |
Anthony Barbier | 7068f99 | 2017-10-26 15:23:08 +0100 | [diff] [blame] | 179 | void main(void) |
| 180 | { |
zhenglin | 08d5421 | 2017-12-27 14:33:06 +0800 | [diff] [blame] | 181 | Tensor3DIterator src_iter = CONVERT_TO_TENSOR3D_ITERATOR(src_attrs, src_shift); |
| 182 | Tensor3DIterator dst_iter = CONVERT_TO_TENSOR3D_ITERATOR(dst_attrs, dst_shift); |
Anthony Barbier | 7068f99 | 2017-10-26 15:23:08 +0100 | [diff] [blame] | 183 | |
zhenglin | 08d5421 | 2017-12-27 14:33:06 +0800 | [diff] [blame] | 184 | vec2 data = LOAD_UNPACK2_CURRENT_ITEM_HALF(src_ptr, src_iter); |
Anthony Barbier | 7068f99 | 2017-10-26 15:23:08 +0100 | [diff] [blame] | 185 | // Perform activation |
zhenglin | 08d5421 | 2017-12-27 14:33:06 +0800 | [diff] [blame] | 186 | float a = data.x; |
| 187 | float b = data.y; |
Anthony Barbier | 7068f99 | 2017-10-26 15:23:08 +0100 | [diff] [blame] | 188 | vec2 data_out; |
| 189 | #ifdef LOGISTIC /*LOGISTIC*/ |
| 190 | data_out.x = logistic_op(a); |
| 191 | data_out.y = logistic_op(b); |
| 192 | #elif defined(TANH) /*TANH*/ |
| 193 | data_out.x = tanh_op(a); |
| 194 | data_out.y = tanh_op(b); |
| 195 | #elif defined(RELU) /*RELU*/ |
| 196 | data_out.x = relu_op(a); |
| 197 | data_out.y = relu_op(b); |
| 198 | #elif defined(BRELU) /*BRELU*/ |
| 199 | data_out.x = brelu_op(a); |
| 200 | data_out.y = brelu_op(b); |
| 201 | #elif defined(LU_BRELU) /*LU_BRELU*/ |
| 202 | data_out.x = lu_brelu_op(a); |
| 203 | data_out.y = lu_brelu_op(b); |
| 204 | #elif defined(LRELU) /*LRELU*/ |
| 205 | data_out.x = lrelu_op(a); |
| 206 | data_out.y = lrelu_op(b); |
| 207 | #elif defined(SRELU) /*SRELU*/ |
| 208 | data_out.x = srelu_op(a); |
| 209 | data_out.y = srelu_op(b); |
| 210 | #elif defined(ABS) /*ABS*/ |
| 211 | data_out.x = abs_op(a); |
| 212 | data_out.y = abs_op(b); |
| 213 | #elif defined(SQUARE) /*SQUARE*/ |
| 214 | data_out.x = square_op(a); |
| 215 | data_out.y = square_op(b); |
| 216 | #elif defined(SQRT) /*SQRT*/ |
| 217 | data_out.x = sqrt_op(a); |
| 218 | data_out.y = sqrt_op(b); |
| 219 | #elif defined(LINEAR) /*LINEAR*/ |
| 220 | data_out.x = linear_op(a); |
| 221 | data_out.y = linear_op(b); |
| 222 | #else /*LOGISTIC*/ |
| 223 | #error Activation function not provided |
| 224 | #endif /*LOGISTIC*/ |
| 225 | |
zhenglin | 08d5421 | 2017-12-27 14:33:06 +0800 | [diff] [blame] | 226 | STORE_PACK2_CURRENT_ITEM_HALF(dst_ptr, dst_iter, data_out); |
Anthony Barbier | 7068f99 | 2017-10-26 15:23:08 +0100 | [diff] [blame] | 227 | } |
zhenglin | 08d5421 | 2017-12-27 14:33:06 +0800 | [diff] [blame] | 228 | #endif /*DATA_TYPE_FP16*/ |