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1 /******************************************************************************
2  *
3  * Copyright (C) 2015 The Android Open Source Project
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  * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
19 */
20 /**
21 *******************************************************************************
22 * @file
23 *  ih264_platform_macros.h
24 *
25 * @brief
26 *  Platform specific Macro definitions used in the codec
27 *
28 * @author
29 *  Ittiam
30 *
31 * @remarks
32 *  None
33 *
34 *******************************************************************************
35 */
36 
37 
38 #ifndef _IH264_PLATFORM_MACROS_H_
39 #define _IH264_PLATFORM_MACROS_H_
40 
41 #include <immintrin.h>
42 
43 
44 #define CLIP_U8(x) CLIP3(0, 255, (x))
45 #define CLIP_S8(x) CLIP3(-128, 127, (x))
46 
47 #define CLIP_U10(x) CLIP3(0, 1023, (x))
48 #define CLIP_S10(x) CLIP3(-512, 511, (x))
49 
50 #define CLIP_U12(x) CLIP3(0, 4095, (x))
51 #define CLIP_S12(x) CLIP3(-2048, 2047, (x))
52 
53 #define CLIP_U16(x) CLIP3(0, 65535, (x))
54 #define CLIP_S16(x) CLIP3(-32768, 32767, (x))
55 
56 #define MEM_ALIGN16 __attribute__ ((aligned (16)))
57 
58 #define SHL(x,y) (((y) < 32) ? ((x) << (y)) : 0)
59 #define SHR(x,y) (((y) < 32) ? ((x) >> (y)) : 0)
60 
61 #define SHR_NEG(val,shift)  ((shift>0)?(val>>shift):(val<<(-shift)))
62 #define SHL_NEG(val,shift)  ((shift<0)?(val>>(-shift)):(val<<shift))
63 
64 
65 #define ITT_BIG_ENDIAN(x)   __builtin_bswap32(x);
66 
67 #define NOP(nop_cnt) {UWORD32 nop_i; for (nop_i = 0; nop_i < nop_cnt; nop_i++) asm("nop");}
68 
69 #define PLD(a)
70 
CLZ(UWORD32 u4_word)71 static __inline UWORD32 CLZ(UWORD32 u4_word)
72 {
73     if(u4_word)
74     return(__builtin_clz(u4_word));
75     else
76         return 32;
77 }
78 
CTZ(UWORD32 u4_word)79 static __inline UWORD32 CTZ(UWORD32 u4_word)
80 {
81     if(0 == u4_word)
82         return 31;
83     else
84     {
85         unsigned int index;
86         index = __builtin_ctz(u4_word);
87         return (UWORD32)index;
88     }
89 }
90 
91 #define DATA_SYNC()  __sync_synchronize()
92 
93 
94 
95 //#define INLINE __inline
96 #define INLINE inline
97 
98 #define PREFETCH_ENABLE 1
99 
100 #if PREFETCH_ENABLE
101 #define PREFETCH(ptr, type) _mm_prefetch(ptr, type);
102 #else
103 #define PREFETCH(ptr, type)
104 #endif
105 
106 #define MEM_ALIGN8 __attribute__ ((aligned (8)))
107 #define MEM_ALIGN16 __attribute__ ((aligned (16)))
108 #define MEM_ALIGN32 __attribute__ ((aligned (32)))
109 
110 #endif /* _IH264_PLATFORM_MACROS_H_ */
111