/****************************************************************************** * * 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_ #include <stdint.h> #include <immintrin.h> #define CLIP_U8(x) CLIP3(0, UINT8_MAX, (x)) #define CLIP_S8(x) CLIP3(INT8_MIN, INT8_MAX, (x)) #define CLIP_U10(x) CLIP3(0, 1023, (x)) #define CLIP_S10(x) CLIP3(-512, 511, (x)) #define CLIP_U11(x) CLIP3(0, 2047, (x)) #define CLIP_S11(x) CLIP3(-1024, 1023, (x)) #define CLIP_U12(x) CLIP3(0, 4095, (x)) #define CLIP_S12(x) CLIP3(-2048, 2047, (x)) #define CLIP_U16(x) CLIP3(0, UINT16_MAX, (x)) #define CLIP_S16(x) CLIP3(INT16_MIN, INT16_MAX, (x)) #define CLIP_U32(x) CLIP3(0, UINT32_MAX, (x)) #define CLIP_S32(x) CLIP3(INT32_MIN, INT32_MAX, (x)) #define MEM_ALIGN16 __attribute__ ((aligned (16))) #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 ITT_BIG_ENDIAN(x) __builtin_bswap32(x); #define NOP(nop_cnt) {UWORD32 nop_i; for (nop_i = 0; nop_i < nop_cnt; nop_i++) asm("nop");} #define PLD(a) /* In normal cases, 0 will not be passed as an argument to CLZ and CTZ. As CLZ and CTZ outputs are used as a shift value in few places, these return 31 for u4_word == 0 case, just to handle error cases gracefully without any undefined behaviour */ static __inline UWORD32 CLZ(UWORD32 u4_word) { if(u4_word) return(__builtin_clz(u4_word)); else return 31; } 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 DATA_SYNC() __sync_synchronize() //#define INLINE __inline #define INLINE inline #define PREFETCH_ENABLE 1 #if PREFETCH_ENABLE #define PREFETCH(ptr, type) _mm_prefetch(ptr, type); #else #define PREFETCH(ptr, type) #endif #define MEM_ALIGN8 __attribute__ ((aligned (8))) #define MEM_ALIGN16 __attribute__ ((aligned (16))) #define MEM_ALIGN32 __attribute__ ((aligned (32))) #endif /* _IH264_PLATFORM_MACROS_H_ */