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 <stdint.h>
42 #include <immintrin.h>
43
44 #define CLIP_U8(x) CLIP3(0, UINT8_MAX, (x))
45 #define CLIP_S8(x) CLIP3(INT8_MIN, INT8_MAX, (x))
46
47 #define CLIP_U10(x) CLIP3(0, 1023, (x))
48 #define CLIP_S10(x) CLIP3(-512, 511, (x))
49
50 #define CLIP_U11(x) CLIP3(0, 2047, (x))
51 #define CLIP_S11(x) CLIP3(-1024, 1023, (x))
52
53 #define CLIP_U12(x) CLIP3(0, 4095, (x))
54 #define CLIP_S12(x) CLIP3(-2048, 2047, (x))
55
56 #define CLIP_U16(x) CLIP3(0, UINT16_MAX, (x))
57 #define CLIP_S16(x) CLIP3(INT16_MIN, INT16_MAX, (x))
58
59 #define CLIP_U32(x) CLIP3(0, UINT32_MAX, (x))
60 #define CLIP_S32(x) CLIP3(INT32_MIN, INT32_MAX, (x))
61
62 #define MEM_ALIGN16 __attribute__ ((aligned (16)))
63
64 #define SHL(x,y) (((y) < 32) ? ((x) << (y)) : 0)
65 #define SHR(x,y) (((y) < 32) ? ((x) >> (y)) : 0)
66
67 #define SHR_NEG(val,shift) ((shift>0)?(val>>shift):(val<<(-shift)))
68 #define SHL_NEG(val,shift) ((shift<0)?(val>>(-shift)):(val<<shift))
69
70
71 #define ITT_BIG_ENDIAN(x) __builtin_bswap32(x);
72
73 #define NOP(nop_cnt) {UWORD32 nop_i; for (nop_i = 0; nop_i < nop_cnt; nop_i++) asm("nop");}
74
75 #define PLD(a)
76
77 /* In normal cases, 0 will not be passed as an argument to CLZ and CTZ.
78 As CLZ and CTZ outputs are used as a shift value in few places, these return
79 31 for u4_word == 0 case, just to handle error cases gracefully without any
80 undefined behaviour */
81
CLZ(UWORD32 u4_word)82 static __inline UWORD32 CLZ(UWORD32 u4_word)
83 {
84 if(u4_word)
85 return(__builtin_clz(u4_word));
86 else
87 return 31;
88 }
89
CTZ(UWORD32 u4_word)90 static __inline UWORD32 CTZ(UWORD32 u4_word)
91 {
92 if(0 == u4_word)
93 return 31;
94 else
95 {
96 unsigned int index;
97 index = __builtin_ctz(u4_word);
98 return (UWORD32)index;
99 }
100 }
101
102 #define DATA_SYNC() __sync_synchronize()
103
104
105
106 //#define INLINE __inline
107 #define INLINE inline
108
109 #define PREFETCH_ENABLE 1
110
111 #if PREFETCH_ENABLE
112 #define PREFETCH(ptr, type) _mm_prefetch(ptr, type);
113 #else
114 #define PREFETCH(ptr, type)
115 #endif
116
117 #define MEM_ALIGN8 __attribute__ ((aligned (8)))
118 #define MEM_ALIGN16 __attribute__ ((aligned (16)))
119 #define MEM_ALIGN32 __attribute__ ((aligned (32)))
120
121 #endif /* _IH264_PLATFORM_MACROS_H_ */
122