Chris Warrington | 17cc286 | 2021-06-28 17:43:40 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | // Don't edit this file! It is auto-generated by frameworks/rs/api/generate.sh. |
| 18 | |
| 19 | /* |
| 20 | * rs_vector_math.rsh: Vector Math Functions |
| 21 | * |
| 22 | * These functions interpret the input arguments as representation of vectors in |
| 23 | * n-dimensional space. |
| 24 | * |
| 25 | * The precision of the mathematical operations on 32 bit floats is affected by the pragmas |
| 26 | * rs_fp_relaxed and rs_fp_full. See Mathematical Constants and Functions for details. |
| 27 | * |
| 28 | * Different precision/speed tradeoffs can be achieved by using variants of the common math |
| 29 | * functions. Functions with a name starting with |
| 30 | * - native_: May have custom hardware implementations with weaker precision. Additionally, |
| 31 | * subnormal values may be flushed to zero, rounding towards zero may be used, and NaN and |
| 32 | * infinity input may not be handled correctly. |
| 33 | * - fast_: May perform internal computations using 16 bit floats. Additionally, subnormal |
| 34 | * values may be flushed to zero, and rounding towards zero may be used. |
| 35 | * |
| 36 | */ |
| 37 | |
| 38 | #ifndef RENDERSCRIPT_RS_VECTOR_MATH_RSH |
| 39 | #define RENDERSCRIPT_RS_VECTOR_MATH_RSH |
| 40 | |
| 41 | /* |
| 42 | * cross: Cross product of two vectors |
| 43 | * |
| 44 | * Computes the cross product of two vectors. |
| 45 | */ |
| 46 | extern float3 __attribute__((const, overloadable)) |
| 47 | cross(float3 left_vector, float3 right_vector); |
| 48 | |
| 49 | extern float4 __attribute__((const, overloadable)) |
| 50 | cross(float4 left_vector, float4 right_vector); |
| 51 | |
| 52 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 53 | extern half3 __attribute__((const, overloadable)) |
| 54 | cross(half3 left_vector, half3 right_vector); |
| 55 | #endif |
| 56 | |
| 57 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 58 | extern half4 __attribute__((const, overloadable)) |
| 59 | cross(half4 left_vector, half4 right_vector); |
| 60 | #endif |
| 61 | |
| 62 | /* |
| 63 | * distance: Distance between two points |
| 64 | * |
| 65 | * Compute the distance between two points. |
| 66 | * |
| 67 | * See also fast_distance(), native_distance(). |
| 68 | */ |
| 69 | extern float __attribute__((const, overloadable)) |
| 70 | distance(float left_vector, float right_vector); |
| 71 | |
| 72 | extern float __attribute__((const, overloadable)) |
| 73 | distance(float2 left_vector, float2 right_vector); |
| 74 | |
| 75 | extern float __attribute__((const, overloadable)) |
| 76 | distance(float3 left_vector, float3 right_vector); |
| 77 | |
| 78 | extern float __attribute__((const, overloadable)) |
| 79 | distance(float4 left_vector, float4 right_vector); |
| 80 | |
| 81 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 82 | extern half __attribute__((const, overloadable)) |
| 83 | distance(half left_vector, half right_vector); |
| 84 | #endif |
| 85 | |
| 86 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 87 | extern half __attribute__((const, overloadable)) |
| 88 | distance(half2 left_vector, half2 right_vector); |
| 89 | #endif |
| 90 | |
| 91 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 92 | extern half __attribute__((const, overloadable)) |
| 93 | distance(half3 left_vector, half3 right_vector); |
| 94 | #endif |
| 95 | |
| 96 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 97 | extern half __attribute__((const, overloadable)) |
| 98 | distance(half4 left_vector, half4 right_vector); |
| 99 | #endif |
| 100 | |
| 101 | /* |
| 102 | * dot: Dot product of two vectors |
| 103 | * |
| 104 | * Computes the dot product of two vectors. |
| 105 | */ |
| 106 | extern float __attribute__((const, overloadable)) |
| 107 | dot(float left_vector, float right_vector); |
| 108 | |
| 109 | extern float __attribute__((const, overloadable)) |
| 110 | dot(float2 left_vector, float2 right_vector); |
| 111 | |
| 112 | extern float __attribute__((const, overloadable)) |
| 113 | dot(float3 left_vector, float3 right_vector); |
| 114 | |
| 115 | extern float __attribute__((const, overloadable)) |
| 116 | dot(float4 left_vector, float4 right_vector); |
| 117 | |
| 118 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 119 | extern half __attribute__((const, overloadable)) |
| 120 | dot(half left_vector, half right_vector); |
| 121 | #endif |
| 122 | |
| 123 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 124 | extern half __attribute__((const, overloadable)) |
| 125 | dot(half2 left_vector, half2 right_vector); |
| 126 | #endif |
| 127 | |
| 128 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 129 | extern half __attribute__((const, overloadable)) |
| 130 | dot(half3 left_vector, half3 right_vector); |
| 131 | #endif |
| 132 | |
| 133 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 134 | extern half __attribute__((const, overloadable)) |
| 135 | dot(half4 left_vector, half4 right_vector); |
| 136 | #endif |
| 137 | |
| 138 | /* |
| 139 | * fast_distance: Approximate distance between two points |
| 140 | * |
| 141 | * Computes the approximate distance between two points. |
| 142 | * |
| 143 | * The precision is what would be expected from doing the computation using 16 bit floating |
| 144 | * point values. |
| 145 | * |
| 146 | * See also distance(), native_distance(). |
| 147 | */ |
| 148 | #if (defined(RS_VERSION) && (RS_VERSION >= 17)) |
| 149 | extern float __attribute__((const, overloadable)) |
| 150 | fast_distance(float left_vector, float right_vector); |
| 151 | #endif |
| 152 | |
| 153 | #if (defined(RS_VERSION) && (RS_VERSION >= 17)) |
| 154 | extern float __attribute__((const, overloadable)) |
| 155 | fast_distance(float2 left_vector, float2 right_vector); |
| 156 | #endif |
| 157 | |
| 158 | #if (defined(RS_VERSION) && (RS_VERSION >= 17)) |
| 159 | extern float __attribute__((const, overloadable)) |
| 160 | fast_distance(float3 left_vector, float3 right_vector); |
| 161 | #endif |
| 162 | |
| 163 | #if (defined(RS_VERSION) && (RS_VERSION >= 17)) |
| 164 | extern float __attribute__((const, overloadable)) |
| 165 | fast_distance(float4 left_vector, float4 right_vector); |
| 166 | #endif |
| 167 | |
| 168 | /* |
| 169 | * fast_length: Approximate length of a vector |
| 170 | * |
| 171 | * Computes the approximate length of a vector. |
| 172 | * |
| 173 | * The precision is what would be expected from doing the computation using 16 bit floating |
| 174 | * point values. |
| 175 | * |
| 176 | * See also length(), native_length(). |
| 177 | */ |
| 178 | #if (defined(RS_VERSION) && (RS_VERSION >= 17)) |
| 179 | extern float __attribute__((const, overloadable)) |
| 180 | fast_length(float v); |
| 181 | #endif |
| 182 | |
| 183 | #if (defined(RS_VERSION) && (RS_VERSION >= 17)) |
| 184 | extern float __attribute__((const, overloadable)) |
| 185 | fast_length(float2 v); |
| 186 | #endif |
| 187 | |
| 188 | #if (defined(RS_VERSION) && (RS_VERSION >= 17)) |
| 189 | extern float __attribute__((const, overloadable)) |
| 190 | fast_length(float3 v); |
| 191 | #endif |
| 192 | |
| 193 | #if (defined(RS_VERSION) && (RS_VERSION >= 17)) |
| 194 | extern float __attribute__((const, overloadable)) |
| 195 | fast_length(float4 v); |
| 196 | #endif |
| 197 | |
| 198 | /* |
| 199 | * fast_normalize: Approximate normalized vector |
| 200 | * |
| 201 | * Approximately normalizes a vector. |
| 202 | * |
| 203 | * For vectors of size 1, returns -1.f for negative values, 0.f for null values, and 1.f for |
| 204 | * positive values. |
| 205 | * |
| 206 | * The precision is what would be expected from doing the computation using 16 bit floating |
| 207 | * point values. |
| 208 | * |
| 209 | * See also normalize(), native_normalize(). |
| 210 | */ |
| 211 | #if (defined(RS_VERSION) && (RS_VERSION >= 17)) |
| 212 | extern float __attribute__((const, overloadable)) |
| 213 | fast_normalize(float v); |
| 214 | #endif |
| 215 | |
| 216 | #if (defined(RS_VERSION) && (RS_VERSION >= 17)) |
| 217 | extern float2 __attribute__((const, overloadable)) |
| 218 | fast_normalize(float2 v); |
| 219 | #endif |
| 220 | |
| 221 | #if (defined(RS_VERSION) && (RS_VERSION >= 17)) |
| 222 | extern float3 __attribute__((const, overloadable)) |
| 223 | fast_normalize(float3 v); |
| 224 | #endif |
| 225 | |
| 226 | #if (defined(RS_VERSION) && (RS_VERSION >= 17)) |
| 227 | extern float4 __attribute__((const, overloadable)) |
| 228 | fast_normalize(float4 v); |
| 229 | #endif |
| 230 | |
| 231 | /* |
| 232 | * length: Length of a vector |
| 233 | * |
| 234 | * Computes the length of a vector. |
| 235 | * |
| 236 | * See also fast_length(), native_length(). |
| 237 | */ |
| 238 | extern float __attribute__((const, overloadable)) |
| 239 | length(float v); |
| 240 | |
| 241 | extern float __attribute__((const, overloadable)) |
| 242 | length(float2 v); |
| 243 | |
| 244 | extern float __attribute__((const, overloadable)) |
| 245 | length(float3 v); |
| 246 | |
| 247 | extern float __attribute__((const, overloadable)) |
| 248 | length(float4 v); |
| 249 | |
| 250 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 251 | extern half __attribute__((const, overloadable)) |
| 252 | length(half v); |
| 253 | #endif |
| 254 | |
| 255 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 256 | extern half __attribute__((const, overloadable)) |
| 257 | length(half2 v); |
| 258 | #endif |
| 259 | |
| 260 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 261 | extern half __attribute__((const, overloadable)) |
| 262 | length(half3 v); |
| 263 | #endif |
| 264 | |
| 265 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 266 | extern half __attribute__((const, overloadable)) |
| 267 | length(half4 v); |
| 268 | #endif |
| 269 | |
| 270 | /* |
| 271 | * native_distance: Approximate distance between two points |
| 272 | * |
| 273 | * Computes the approximate distance between two points. |
| 274 | * |
| 275 | * See also distance(), fast_distance(). |
| 276 | */ |
| 277 | #if (defined(RS_VERSION) && (RS_VERSION >= 21)) |
| 278 | extern float __attribute__((const, overloadable)) |
| 279 | native_distance(float left_vector, float right_vector); |
| 280 | #endif |
| 281 | |
| 282 | #if (defined(RS_VERSION) && (RS_VERSION >= 21)) |
| 283 | extern float __attribute__((const, overloadable)) |
| 284 | native_distance(float2 left_vector, float2 right_vector); |
| 285 | #endif |
| 286 | |
| 287 | #if (defined(RS_VERSION) && (RS_VERSION >= 21)) |
| 288 | extern float __attribute__((const, overloadable)) |
| 289 | native_distance(float3 left_vector, float3 right_vector); |
| 290 | #endif |
| 291 | |
| 292 | #if (defined(RS_VERSION) && (RS_VERSION >= 21)) |
| 293 | extern float __attribute__((const, overloadable)) |
| 294 | native_distance(float4 left_vector, float4 right_vector); |
| 295 | #endif |
| 296 | |
| 297 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 298 | extern half __attribute__((const, overloadable)) |
| 299 | native_distance(half left_vector, half right_vector); |
| 300 | #endif |
| 301 | |
| 302 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 303 | extern half __attribute__((const, overloadable)) |
| 304 | native_distance(half2 left_vector, half2 right_vector); |
| 305 | #endif |
| 306 | |
| 307 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 308 | extern half __attribute__((const, overloadable)) |
| 309 | native_distance(half3 left_vector, half3 right_vector); |
| 310 | #endif |
| 311 | |
| 312 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 313 | extern half __attribute__((const, overloadable)) |
| 314 | native_distance(half4 left_vector, half4 right_vector); |
| 315 | #endif |
| 316 | |
| 317 | /* |
| 318 | * native_length: Approximate length of a vector |
| 319 | * |
| 320 | * Compute the approximate length of a vector. |
| 321 | * |
| 322 | * See also length(), fast_length(). |
| 323 | */ |
| 324 | #if (defined(RS_VERSION) && (RS_VERSION >= 21)) |
| 325 | extern float __attribute__((const, overloadable)) |
| 326 | native_length(float v); |
| 327 | #endif |
| 328 | |
| 329 | #if (defined(RS_VERSION) && (RS_VERSION >= 21)) |
| 330 | extern float __attribute__((const, overloadable)) |
| 331 | native_length(float2 v); |
| 332 | #endif |
| 333 | |
| 334 | #if (defined(RS_VERSION) && (RS_VERSION >= 21)) |
| 335 | extern float __attribute__((const, overloadable)) |
| 336 | native_length(float3 v); |
| 337 | #endif |
| 338 | |
| 339 | #if (defined(RS_VERSION) && (RS_VERSION >= 21)) |
| 340 | extern float __attribute__((const, overloadable)) |
| 341 | native_length(float4 v); |
| 342 | #endif |
| 343 | |
| 344 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 345 | extern half __attribute__((const, overloadable)) |
| 346 | native_length(half v); |
| 347 | #endif |
| 348 | |
| 349 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 350 | extern half __attribute__((const, overloadable)) |
| 351 | native_length(half2 v); |
| 352 | #endif |
| 353 | |
| 354 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 355 | extern half __attribute__((const, overloadable)) |
| 356 | native_length(half3 v); |
| 357 | #endif |
| 358 | |
| 359 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 360 | extern half __attribute__((const, overloadable)) |
| 361 | native_length(half4 v); |
| 362 | #endif |
| 363 | |
| 364 | /* |
| 365 | * native_normalize: Approximately normalize a vector |
| 366 | * |
| 367 | * Approximately normalizes a vector. |
| 368 | * |
| 369 | * See also normalize(), fast_normalize(). |
| 370 | */ |
| 371 | #if (defined(RS_VERSION) && (RS_VERSION >= 21)) |
| 372 | extern float __attribute__((const, overloadable)) |
| 373 | native_normalize(float v); |
| 374 | #endif |
| 375 | |
| 376 | #if (defined(RS_VERSION) && (RS_VERSION >= 21)) |
| 377 | extern float2 __attribute__((const, overloadable)) |
| 378 | native_normalize(float2 v); |
| 379 | #endif |
| 380 | |
| 381 | #if (defined(RS_VERSION) && (RS_VERSION >= 21)) |
| 382 | extern float3 __attribute__((const, overloadable)) |
| 383 | native_normalize(float3 v); |
| 384 | #endif |
| 385 | |
| 386 | #if (defined(RS_VERSION) && (RS_VERSION >= 21)) |
| 387 | extern float4 __attribute__((const, overloadable)) |
| 388 | native_normalize(float4 v); |
| 389 | #endif |
| 390 | |
| 391 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 392 | extern half __attribute__((const, overloadable)) |
| 393 | native_normalize(half v); |
| 394 | #endif |
| 395 | |
| 396 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 397 | extern half2 __attribute__((const, overloadable)) |
| 398 | native_normalize(half2 v); |
| 399 | #endif |
| 400 | |
| 401 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 402 | extern half3 __attribute__((const, overloadable)) |
| 403 | native_normalize(half3 v); |
| 404 | #endif |
| 405 | |
| 406 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 407 | extern half4 __attribute__((const, overloadable)) |
| 408 | native_normalize(half4 v); |
| 409 | #endif |
| 410 | |
| 411 | /* |
| 412 | * normalize: Normalize a vector |
| 413 | * |
| 414 | * Normalize a vector. |
| 415 | * |
| 416 | * For vectors of size 1, returns -1.f for negative values, 0.f for null values, and 1.f for |
| 417 | * positive values. |
| 418 | * |
| 419 | * See also fast_normalize(), native_normalize(). |
| 420 | */ |
| 421 | extern float __attribute__((const, overloadable)) |
| 422 | normalize(float v); |
| 423 | |
| 424 | extern float2 __attribute__((const, overloadable)) |
| 425 | normalize(float2 v); |
| 426 | |
| 427 | extern float3 __attribute__((const, overloadable)) |
| 428 | normalize(float3 v); |
| 429 | |
| 430 | extern float4 __attribute__((const, overloadable)) |
| 431 | normalize(float4 v); |
| 432 | |
| 433 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 434 | extern half __attribute__((const, overloadable)) |
| 435 | normalize(half v); |
| 436 | #endif |
| 437 | |
| 438 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 439 | extern half2 __attribute__((const, overloadable)) |
| 440 | normalize(half2 v); |
| 441 | #endif |
| 442 | |
| 443 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 444 | extern half3 __attribute__((const, overloadable)) |
| 445 | normalize(half3 v); |
| 446 | #endif |
| 447 | |
| 448 | #if (defined(RS_VERSION) && (RS_VERSION >= 24)) |
| 449 | extern half4 __attribute__((const, overloadable)) |
| 450 | normalize(half4 v); |
| 451 | #endif |
| 452 | |
| 453 | #endif // RENDERSCRIPT_RS_VECTOR_MATH_RSH |