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/******************************************************************************
*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*****************************************************************************
* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
*/
/**
*******************************************************************************
* @file
* ih264_platform_macros.h
*
* @brief
* Platform specific Macro definitions used in the codec
*
* @author
* Ittiam
*
* @remarks
* None
*
*******************************************************************************
*/
#ifndef _IH264_PLATFORM_MACROS_H_
#define _IH264_PLATFORM_MACROS_H_
#ifndef ARMV8
static __inline WORD32 CLIP_U8(WORD32 x)
{
asm("usat %0, #8, %1" : "=r"(x) : "r"(x));
return x;
}
static __inline WORD32 CLIP_S8(WORD32 x)
{
asm("ssat %0, #8, %1" : "=r"(x) : "r"(x));
return x;
}
static __inline WORD32 CLIP_U10(WORD32 x)
{
asm("usat %0, #10, %1" : "=r"(x) : "r"(x));
return x;
}
static __inline WORD32 CLIP_S10(WORD32 x)
{
asm("ssat %0, #10, %1" : "=r"(x) : "r"(x));
return x;
}
static __inline WORD32 CLIP_U12(WORD32 x)
{
asm("usat %0, #12, %1" : "=r"(x) : "r"(x));
return x;
}
static __inline WORD32 CLIP_S12(WORD32 x)
{
asm("ssat %0, #12, %1" : "=r"(x) : "r"(x));
return x;
}
static __inline WORD32 CLIP_U16(WORD32 x)
{
asm("usat %0, #16, %1" : "=r"(x) : "r"(x));
return x;
}
static __inline WORD32 CLIP_S16(WORD32 x)
{
asm("ssat %0, #16, %1" : "=r"(x) : "r"(x));
return x;
}
static __inline UWORD32 ITT_BIG_ENDIAN(UWORD32 x)
{
asm("rev %0, %1" : "=r"(x) : "r"(x));
return x;
}
#define NOP(nop_cnt) {UWORD32 nop_i; for (nop_i = 0; nop_i < nop_cnt; nop_i++) asm("nop");}
#else
#define CLIP_U8(x) CLIP3(0, 255, (x))
#define CLIP_S8(x) CLIP3(-128, 127, (x))
#define CLIP_U10(x) CLIP3(0, 1023, (x))
#define CLIP_S10(x) CLIP3(-512, 511, (x))
#define CLIP_U12(x) CLIP3(0, 4095, (x))
#define CLIP_S12(x) CLIP3(-2048, 2047, (x))
#define CLIP_U16(x) CLIP3(0, 65535, (x))
#define CLIP_S16(x) CLIP3(-32768, 32767, (x))
#define ITT_BIG_ENDIAN(x) __asm__("rev %0, %1" : "=r"(x) : "r"(x));
#define NOP(nop_cnt) \
{ \
UWORD32 nop_i; \
for (nop_i = 0; nop_i < nop_cnt; nop_i++) \
__asm__ __volatile__("mov x0, x0"); \
}
#endif
#define DATA_SYNC() __sync_synchronize()
#define SHL(x,y) (((y) < 32) ? ((x) << (y)) : 0)
#define SHR(x,y) (((y) < 32) ? ((x) >> (y)) : 0)
#define SHR_NEG(val,shift) ((shift>0)?(val>>shift):(val<<(-shift)))
#define SHL_NEG(val,shift) ((shift<0)?(val>>(-shift)):(val<<shift))
#define INLINE inline
static INLINE UWORD32 CLZ(UWORD32 u4_word)
{
if(u4_word)
return (__builtin_clz(u4_word));
else
return 32;
}
static INLINE UWORD32 CTZ(UWORD32 u4_word)
{
if(0 == u4_word)
return 31;
else
{
unsigned int index;
index = __builtin_ctz(u4_word);
return (UWORD32)index;
}
}
#define MEM_ALIGN8 __attribute__ ((aligned (8)))
#define MEM_ALIGN16 __attribute__ ((aligned (16)))
#define MEM_ALIGN32 __attribute__ ((aligned (32)))
#endif /* _IH264_PLATFORM_MACROS_H_ */
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