1 /****************************************************************************** 2 * 3 * Copyright (C) 2012 Ittiam Systems Pvt Ltd, Bangalore 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ******************************************************************************/ 18 /** 19 ******************************************************************************* 20 * @file 21 * ihevc_platform_macros.h 22 * 23 * @brief 24 * Platform specific Macro definitions used in the codec 25 * 26 * @author 27 * Ittiam 28 * 29 * @remarks 30 * None 31 * 32 ******************************************************************************* 33 */ 34 35 36 #ifndef _IHEVC_PLATFORM_MACROS_H_ 37 #define _IHEVC_PLATFORM_MACROS_H_ 38 39 //#include <immintrin.h> 40 41 42 #define CLIP_U8(x) CLIP3((x), 0, 255) 43 #define CLIP_S8(x) CLIP3((x), -128, 127) 44 45 #define CLIP_U10(x) CLIP3((x), 0, 1023); 46 #define CLIP_S10(x) CLIP3((x), -512, 511); 47 48 #define CLIP_U12(x) CLIP3((x), 0, 4095); 49 #define CLIP_S12(x) CLIP3((x), -2048, 2047); 50 51 #define CLIP_U16(x) CLIP3((x), 0, 65535) 52 #define CLIP_S16(x) CLIP3((x), -32768, 32767) 53 54 55 56 #define SHL(x,y) (((y) < 32) ? ((x) << (y)) : 0) 57 #define SHR(x,y) (((y) < 32) ? ((x) >> (y)) : 0) 58 59 #define SHR_NEG(val,shift) ((shift>0)?(val>>shift):(val<<(-shift))) 60 #define SHL_NEG(val,shift) ((shift<0)?(val>>(-shift)):(val<<shift)) 61 62 63 #define ITT_BIG_ENDIAN(x) ((x << 24)) | \ 64 ((x & 0x0000ff00) << 8) | \ 65 ((x & 0x00ff0000) >> 8) | \ 66 ((UWORD32)x >> 24); 67 68 69 #define NOP(nop_cnt) {UWORD32 nop_i; for (nop_i = 0; nop_i < nop_cnt; nop_i++);} 70 71 #define PLD(a) 72 #define INLINE inline 73 74 static INLINE UWORD32 CLZ(UWORD32 u4_word) 75 { 76 if(u4_word) 77 return (__builtin_clz(u4_word)); 78 else 79 return 32; 80 } 81 82 static INLINE UWORD32 CTZ(UWORD32 u4_word) 83 { 84 if(0 == u4_word) 85 return 31; 86 else 87 { 88 unsigned int index; 89 index = __builtin_ctz(u4_word); 90 return (UWORD32)index; 91 } 92 } 93 94 /** 95 ****************************************************************************** 96 * @brief returns postion of msb bit for 32bit input 97 ****************************************************************************** 98 */ 99 #define GET_POS_MSB_32(r,word) \ 100 { \ 101 if(word) \ 102 { \ 103 r = 31 - __builtin_clz(word); \ 104 } \ 105 else \ 106 { \ 107 r = -1; \ 108 } \ 109 } 110 111 /** 112 ****************************************************************************** 113 * @brief returns postion of msb bit for 64bit input 114 ****************************************************************************** 115 */ 116 #define GET_POS_MSB_64(r,word) \ 117 { \ 118 if(word) \ 119 { \ 120 r = 63 - __builtin_clzll(word); \ 121 } \ 122 else \ 123 { \ 124 r = -1; \ 125 } \ 126 } 127 128 129 /** 130 ****************************************************************************** 131 * @brief returns max number of bits required to represent input word (max 32bits) 132 ****************************************************************************** 133 */ 134 #define GETRANGE(r,word) \ 135 { \ 136 if(word) \ 137 { \ 138 r = 32 - __builtin_clz(word); \ 139 } \ 140 else \ 141 { \ 142 r = 1; \ 143 } \ 144 } 145 #define GCC_ENABLE 1 146 147 #if GCC_ENABLE 148 #define _mm256_loadu2_m128i(X,Y) _mm256_insertf128_si256(_mm256_castsi128_si256(_mm_loadu_si128((Y))), _mm_loadu_si128((X)),1); 149 150 #define _mm256_storeu2_m128i(X,Y,Z) {_mm_storeu_si128 ((Y), _mm256_castsi256_si128((Z)));_mm_storeu_si128 ((X), _mm256_extracti128_si256((Z),1));} 151 152 #define _mm256_set_m128i(X,Y) _mm256_insertf128_si256(_mm256_castsi128_si256((Y)),(X),1); 153 154 #endif 155 156 157 #define PREFETCH_ENABLE 1 158 159 #if PREFETCH_ENABLE 160 #define PREFETCH(ptr, type) _mm_prefetch(ptr, type); 161 #else 162 #define PREFETCH(ptr, type) 163 #endif 164 165 #define MEM_ALIGN8 __attribute__ ((aligned (8))) 166 #define MEM_ALIGN16 __attribute__ ((aligned (16))) 167 #define MEM_ALIGN32 __attribute__ ((aligned (32))) 168 169 #endif /* _IHEVC_PLATFORM_MACROS_H_ */ 170