rsUtils.h revision a5577808737a394bdb156fbeb80018d0a4d8438d
1/* 2 * Copyright (C) 2009 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#ifndef ANDROID_RS_UTILS_H 18#define ANDROID_RS_UTILS_H 19 20#define LOG_NDEBUG 0 21#define LOG_TAG "rs" 22#include <utils/Log.h> 23#include <utils/Vector.h> 24#include <stdlib.h> 25#include <pthread.h> 26 27#include <EGL/egl.h> 28#include <math.h> 29 30#include "RenderScript.h" 31 32namespace android { 33namespace renderscript { 34 35#if 1 36#define rsAssert(v) do {if(!(v)) LOGE("rsAssert failed: %s, in %s at %i", #v, __FILE__, __LINE__);} while(0) 37#else 38#define rsAssert(v) while(0) 39#endif 40 41template<typename T> 42T rsMin(T in1, T in2) 43{ 44 if (in1 > in2) { 45 return in2; 46 } 47 return in1; 48} 49 50template<typename T> 51T rsMax(T in1, T in2) 52{ 53 if (in1 < in2) { 54 return in2; 55 } 56 return in1; 57} 58 59template<typename T> 60T rsFindHighBit(T val) 61{ 62 uint32_t bit = 0; 63 while(val > 1) { 64 bit++; 65 val>>=1; 66 } 67 return bit; 68} 69 70template<typename T> 71bool rsIsPow2(T val) 72{ 73 return (val & (val-1)) == 0; 74} 75 76template<typename T> 77T rsHigherPow2(T v) 78{ 79 if (rsIsPow2(v)) { 80 return v; 81 } 82 return 1 << (rsFindHighBit(v) + 1); 83} 84 85template<typename T> 86T rsLowerPow2(T v) 87{ 88 if (rsIsPow2(v)) { 89 return v; 90 } 91 return 1 << rsFindHighBit(v); 92} 93 94 95static inline uint16_t rs888to565(uint32_t r, uint32_t g, uint32_t b) 96{ 97 uint16_t t = 0; 98 t |= b >> 3; 99 t |= (g >> 2) << 5; 100 t |= (r >> 3) << 11; 101 return t; 102} 103 104static inline uint16_t rsBoxFilter565(uint16_t i1, uint16_t i2, uint16_t i3, uint16_t i4) 105{ 106 uint32_t r = ((i1 & 0x1f) + (i2 & 0x1f) + (i3 & 0x1f) + (i4 & 0x1f)); 107 uint32_t g = ((i1 >> 5) & 0x3f) + ((i2 >> 5) & 0x3f) + ((i3 >> 5) & 0x3f) + ((i4 >> 5) & 0x3f); 108 uint32_t b = ((i1 >> 11) + (i2 >> 11) + (i3 >> 11) + (i4 >> 11)); 109 return (r >> 2) | ((g >> 2) << 5) | ((b >> 2) << 11); 110} 111 112static inline uint32_t rsBoxFilter8888(uint32_t i1, uint32_t i2, uint32_t i3, uint32_t i4) 113{ 114 uint32_t r = (i1 & 0xff) + (i2 & 0xff) + (i3 & 0xff) + (i4 & 0xff); 115 uint32_t g = ((i1 >> 8) & 0xff) + ((i2 >> 8) & 0xff) + ((i3 >> 8) & 0xff) + ((i4 >> 8) & 0xff); 116 uint32_t b = ((i1 >> 16) & 0xff) + ((i2 >> 16) & 0xff) + ((i3 >> 16) & 0xff) + ((i4 >> 16) & 0xff); 117 uint32_t a = ((i1 >> 24) & 0xff) + ((i2 >> 24) & 0xff) + ((i3 >> 24) & 0xff) + ((i4 >> 24) & 0xff); 118 return (r >> 2) | ((g >> 2) << 8) | ((b >> 2) << 16) | ((a >> 2) << 24); 119} 120 121 122 123} 124} 125 126#endif //ANDROID_RS_OBJECT_BASE_H 127 128 129