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 #define CLIP_U8(x) CLIP3(0, 255, (x))
42 #define CLIP_S8(x) CLIP3(-128, 127, (x))
43
44 #define CLIP_U10(x) CLIP3(0, 1023, (x))
45 #define CLIP_S10(x) CLIP3(-512, 511, (x))
46
47 #define CLIP_U12(x) CLIP3(0, 4095, (x))
48 #define CLIP_S12(x) CLIP3(-2048, 2047, (x))
49
50 #define CLIP_U16(x) CLIP3(0, 65535, (x))
51 #define CLIP_S16(x) CLIP3(-32768, 32767, (x))
52
53 #define MEM_ALIGN16 __attribute__ ((aligned (16)))
54
55 #define SHL(x,y) (((y) < 32) ? ((x) << (y)) : 0)
56 #define SHR(x,y) (((y) < 32) ? ((x) >> (y)) : 0)
57
58 #define SHR_NEG(val,shift) ((shift>0)?(val>>shift):(val<<(-shift)))
59 #define SHL_NEG(val,shift) ((shift<0)?(val>>(-shift)):(val<<shift))
60
61
62 #define ITT_BIG_ENDIAN(x) ((x << 24)) | \
63 ((x & 0x0000ff00) << 8) | \
64 ((x & 0x00ff0000) >> 8) | \
65 ((UWORD32)x >> 24);
66
67
68 #define NOP(nop_cnt) {UWORD32 nop_i; for (nop_i = 0; nop_i < nop_cnt; nop_i++);}
69
70 #define PLD(a)
71
CLZ(UWORD32 u4_word)72 static __inline UWORD32 CLZ(UWORD32 u4_word)
73 {
74 if(u4_word)
75 return(__builtin_clz(u4_word));
76 else
77 return 32;
78 }
79
CTZ(UWORD32 u4_word)80 static __inline UWORD32 CTZ(UWORD32 u4_word)
81 {
82 if(0 == u4_word)
83 return 31;
84 else
85 {
86 unsigned int index;
87 index = __builtin_ctz(u4_word);
88 return (UWORD32)index;
89 }
90 }
91
92 #define DATA_SYNC()
93
94 #define INLINE
95
96 #define PREFETCH(ptr, type)
97
98 #define MEM_ALIGN8 __attribute__ ((aligned (8)))
99 #define MEM_ALIGN16 __attribute__ ((aligned (16)))
100 #define MEM_ALIGN32 __attribute__ ((aligned (32)))
101
102 #endif /* _IH264_PLATFORM_MACROS_H_ */
103