clamp.c revision 386e87ecf4114084c10dd385edc1c2baebe80a04
1/* 2 * Copyright (C) 2013 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#include "rs_core.rsh" 18 19typedef unsigned long long ull; 20typedef unsigned long long ull2 __attribute__((ext_vector_type(2))); 21typedef unsigned long long ull3 __attribute__((ext_vector_type(3))); 22typedef unsigned long long ull4 __attribute__((ext_vector_type(4))); 23 24#define S_CLAMP(T) \ 25extern T __attribute__((overloadable)) clamp(T amount, T low, T high) { \ 26 return amount < low ? low : (amount > high ? high : amount); \ 27} 28 29//_CLAMP(float); implemented in .ll 30S_CLAMP(double); 31S_CLAMP(char); 32S_CLAMP(uchar); 33S_CLAMP(short); 34S_CLAMP(ushort); 35S_CLAMP(int); 36S_CLAMP(uint); 37S_CLAMP(long); 38S_CLAMP(ulong); 39 40#undef S_CLAMP 41 42 43 \ 44#define V_CLAMP(T) \ 45extern T##2 __attribute__((overloadable)) clamp(T##2 amount, T##2 low, T##2 high) { \ 46 T##2 r; \ 47 r.x = amount.x < low.x ? low.x : (amount.x > high.x ? high.x : amount.x); \ 48 r.y = amount.y < low.y ? low.y : (amount.y > high.y ? high.y : amount.y); \ 49 return r; \ 50} \ 51 \ 52extern T##3 __attribute__((overloadable)) clamp(T##3 amount, T##3 low, T##3 high) { \ 53 T##3 r; \ 54 r.x = amount.x < low.x ? low.x : (amount.x > high.x ? high.x : amount.x); \ 55 r.y = amount.y < low.y ? low.y : (amount.y > high.y ? high.y : amount.y); \ 56 r.z = amount.z < low.z ? low.z : (amount.z > high.z ? high.z : amount.z); \ 57 return r; \ 58} \ 59 \ 60extern T##4 __attribute__((overloadable)) clamp(T##4 amount, T##4 low, T##4 high) { \ 61 T##4 r; \ 62 r.x = amount.x < low.x ? low.x : (amount.x > high.x ? high.x : amount.x); \ 63 r.y = amount.y < low.y ? low.y : (amount.y > high.y ? high.y : amount.y); \ 64 r.z = amount.z < low.z ? low.z : (amount.z > high.z ? high.z : amount.z); \ 65 r.w = amount.w < low.w ? low.w : (amount.w > high.w ? high.w : amount.w); \ 66 return r; \ 67} \ 68 \ 69extern T##2 __attribute__((overloadable)) clamp(T##2 amount, T low, T high) { \ 70 T##2 r; \ 71 r.x = amount.x < low ? low : (amount.x > high ? high : amount.x); \ 72 r.y = amount.y < low ? low : (amount.y > high ? high : amount.y); \ 73 return r; \ 74} \ 75 \ 76extern T##3 __attribute__((overloadable)) clamp(T##3 amount, T low, T high) { \ 77 T##3 r; \ 78 r.x = amount.x < low ? low : (amount.x > high ? high : amount.x); \ 79 r.y = amount.y < low ? low : (amount.y > high ? high : amount.y); \ 80 r.z = amount.z < low ? low : (amount.z > high ? high : amount.z); \ 81 return r; \ 82} \ 83 \ 84extern T##4 __attribute__((overloadable)) clamp(T##4 amount, T low, T high) { \ 85 T##4 r; \ 86 r.x = amount.x < low ? low : (amount.x > high ? high : amount.x); \ 87 r.y = amount.y < low ? low : (amount.y > high ? high : amount.y); \ 88 r.z = amount.z < low ? low : (amount.z > high ? high : amount.z); \ 89 r.w = amount.w < low ? low : (amount.w > high ? high : amount.w); \ 90 return r; \ 91} 92 93//V_CLAMP(float); implemented in .ll 94V_CLAMP(double); 95V_CLAMP(char); 96V_CLAMP(uchar); 97V_CLAMP(short); 98V_CLAMP(ushort); 99#if !defined(ARCH_ARM_HAVE_NEON) && !defined (ARCH_ARM64_HAVE_NEON) 100 V_CLAMP(int); //implemented in .ll 101 V_CLAMP(uint); //implemented in .ll 102#endif 103 104V_CLAMP(long); 105V_CLAMP(ulong); 106V_CLAMP(ull); 107 108#undef _CLAMP 109