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      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 #define GCC_ENABLE 1
     95 
     96 #if GCC_ENABLE
     97 #define _mm256_loadu2_m128i(X,Y) _mm256_insertf128_si256(_mm256_castsi128_si256(_mm_loadu_si128((Y))), _mm_loadu_si128((X)),1);
     98 
     99 #define _mm256_storeu2_m128i(X,Y,Z) {_mm_storeu_si128 ((Y), _mm256_castsi256_si128((Z)));_mm_storeu_si128 ((X), _mm256_extracti128_si256((Z),1));}
    100 
    101 #define _mm256_set_m128i(X,Y) _mm256_insertf128_si256(_mm256_castsi128_si256((Y)),(X),1);
    102 
    103 #endif
    104 
    105 
    106 #define PREFETCH_ENABLE 1
    107 
    108 #if PREFETCH_ENABLE
    109 #define PREFETCH(ptr, type) _mm_prefetch(ptr, type);
    110 #else
    111 #define PREFETCH(ptr, type)
    112 #endif
    113 
    114 #define MEM_ALIGN8 __attribute__ ((aligned (8)))
    115 #define MEM_ALIGN16 __attribute__ ((aligned (16)))
    116 #define MEM_ALIGN32 __attribute__ ((aligned (32)))
    117 
    118 #endif /* _IHEVC_PLATFORM_MACROS_H_ */
    119