244 lines
7.3 KiB
C
244 lines
7.3 KiB
C
/******************************************************************************
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*
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* Copyright (C) 2012 Ittiam Systems Pvt Ltd, Bangalore
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************/
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/**
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*******************************************************************************
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* @file
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* ihevc_platform_macros.h
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*
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* @brief
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* Platform specific Macro definitions used in the codec
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*
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* @author
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* Ittiam
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*
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* @remarks
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* None
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*
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*******************************************************************************
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*/
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#ifndef _IHEVC_PLATFORM_MACROS_H_
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#define _IHEVC_PLATFORM_MACROS_H_
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#ifndef ARMV8
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static __inline WORD32 CLIP_U8(WORD32 x)
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{
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asm("usat %0, #8, %1" : "=r"(x) : "r"(x));
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return x;
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}
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static __inline WORD32 CLIP_S8(WORD32 x)
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{
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asm("ssat %0, #8, %1" : "=r"(x) : "r"(x));
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return x;
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}
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static __inline WORD32 CLIP_U10(WORD32 x)
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{
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asm("usat %0, #10, %1" : "=r"(x) : "r"(x));
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return x;
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}
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static __inline WORD32 CLIP_S10(WORD32 x)
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{
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asm("ssat %0, #10, %1" : "=r"(x) : "r"(x));
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return x;
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}
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static __inline WORD32 CLIP_U12(WORD32 x)
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{
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asm("usat %0, #12, %1" : "=r"(x) : "r"(x));
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return x;
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}
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static __inline WORD32 CLIP_S12(WORD32 x)
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{
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asm("ssat %0, #12, %1" : "=r"(x) : "r"(x));
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return x;
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}
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static __inline WORD32 CLIP_U14(WORD32 x)
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{
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asm("usat %0, #14, %1" : "=r"(x) : "r"(x));
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return x;
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}
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static __inline WORD32 CLIP_S14(WORD32 x)
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{
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asm("ssat %0, #14, %1" : "=r"(x) : "r"(x));
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return x;
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}
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static __inline WORD32 CLIP_U16(WORD32 x)
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{
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asm("usat %0, #16, %1" : "=r"(x) : "r"(x));
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return x;
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}
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static __inline WORD32 CLIP_S16(WORD32 x)
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{
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asm("ssat %0, #16, %1" : "=r"(x) : "r"(x));
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return x;
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}
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static __inline UWORD32 ITT_BIG_ENDIAN(UWORD32 x)
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{
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asm("rev %0, %1" : "=r"(x) : "r"(x));
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return x;
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}
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#else
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#define CLIP_U8(x) CLIP3((x), 0, 255)
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#define CLIP_S8(x) CLIP3((x), -128, 127)
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#define CLIP_U10(x) CLIP3((x), 0, 1023);
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#define CLIP_S10(x) CLIP3((x), -512, 511);
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#define CLIP_U12(x) CLIP3((x), 0, 4095);
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#define CLIP_S12(x) CLIP3((x), -2048, 2047);
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#define CLIP_U14(x) CLIP3((x), 0, 16383);
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#define CLIP_S14(x) CLIP3((x), -8192, 8191);
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#define CLIP_U16(x) CLIP3((x), 0, 65535)
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#define CLIP_S16(x) CLIP3((x), -32768, 32767)
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#define ITT_BIG_ENDIAN(x) ((x & 0x000000ff) << 24) | \
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((x & 0x0000ff00) << 8) | \
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((x & 0x00ff0000) >> 8) | \
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((UWORD32)x >> 24);
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#endif
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#define SHL(x,y) (((y) < 32) ? ((x) << (y)) : 0)
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#define SHR(x,y) (((y) < 32) ? ((x) >> (y)) : 0)
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#define SHR_NEG(val,shift) ((shift>0)?(val>>shift):(val<<(-shift)))
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#define SHL_NEG(val,shift) ((shift<0)?(val>>(-shift)):(val<<shift))
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#define INLINE inline
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#define POPCNT_U32(x) __builtin_popcount(x)
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static INLINE UWORD32 CLZ(UWORD32 u4_word)
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{
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if(u4_word)
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return (__builtin_clz(u4_word));
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else
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return 31;
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}
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static INLINE UWORD32 CLZNZ(UWORD32 u4_word)
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{
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return (__builtin_clz(u4_word));
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}
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static INLINE UWORD32 CTZ(UWORD32 u4_word)
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{
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if(0 == u4_word)
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return 31;
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else
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{
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unsigned int index;
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index = __builtin_ctz(u4_word);
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return (UWORD32)index;
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}
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}
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#define DATA_SYNC() __sync_synchronize()
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/**
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******************************************************************************
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* @brief returns postion of msb bit for 32bit input
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******************************************************************************
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*/
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#define GET_POS_MSB_32(r,word) \
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{ \
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if(word) \
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{ \
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r = 31 - __builtin_clz(word); \
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} \
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else \
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{ \
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r = -1; \
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} \
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}
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/**
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******************************************************************************
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* @brief returns postion of msb bit for 64bit input
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******************************************************************************
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*/
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#define GET_POS_MSB_64(r,word) \
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{ \
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if(word) \
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{ \
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r = 63 - __builtin_clzll(word); \
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} \
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else \
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{ \
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r = -1; \
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} \
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}
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/**
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******************************************************************************
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* @brief returns max number of bits required to represent input word (max 32bits)
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******************************************************************************
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*/
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#define GETRANGE(r,word) \
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{ \
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if(word) \
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{ \
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r = 32 - __builtin_clz(word); \
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} \
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else \
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{ \
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r = 1; \
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} \
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}
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/**
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*****************************************************************************************************
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* @brief returns max number of bits required to represent input unsigned long long word (max 64bits)
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*****************************************************************************************************
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*/
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#define GETRANGE64(r,llword) \
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{ \
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if(llword) \
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{ \
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r = 64 - __builtin_clzll(llword); \
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} \
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else \
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{ \
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r = 1; \
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} \
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}
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#define NOP(nop_cnt) {UWORD32 nop_i; for (nop_i = 0; nop_i < nop_cnt; nop_i++) asm("nop");}
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#define MEM_ALIGN8 __attribute__ ((aligned (8)))
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#define MEM_ALIGN16 __attribute__ ((aligned (16)))
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#define MEM_ALIGN32 __attribute__ ((aligned (32)))
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#endif /* _IHEVC_PLATFORM_MACROS_H_ */
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