1 /******************************************************************************
2 *
3 * Copyright (C) 2012 Ittiam Systems Pvt Ltd, Bangalore
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 /**
19 *******************************************************************************
20 * @file
21 * ihevc_platform_macros.h
22 *
23 * @brief
24 * Platform specific Macro definitions used in the codec
25 *
26 * @author
27 * Ittiam
28 *
29 * @remarks
30 * None
31 *
32 *******************************************************************************
33 */
34
35
36 #ifndef _IHEVC_PLATFORM_MACROS_H_
37 #define _IHEVC_PLATFORM_MACROS_H_
38
39
40 #define CLIP_U8(x) CLIP3((x), 0, 255);
41 #define CLIP_S8(x) CLIP3((x), -128, 127);
42
43 #define CLIP_U10(x) CLIP3((x), 0, 1023);
44 #define CLIP_S10(x) CLIP3((x), -512, 511);
45
46 #define CLIP_U12(x) CLIP3((x), 0, 4095);
47 #define CLIP_S12(x) CLIP3((x), -2048, 2047);
48
49 #define CLIP_U14(x) CLIP3((x), 0, 16383);
50 #define CLIP_S14(x) CLIP3((x), -8192, 8191);
51
52 #define CLIP_U16(x) CLIP3((x), 0, 65535);
53 #define CLIP_S16(x) CLIP3((x), -32768, 32767);
54
55
56 #define SHL(x,y) (((y) < 32) ? ((x) << (y)) : 0)
57 #define SHR(x,y) (((y) < 32) ? ((x) >> (y)) : 0)
58
59 #define SHR_NEG(val,shift) ((shift>0)?(val>>shift):(val<<(-shift)))
60 #define SHL_NEG(val,shift) ((shift<0)?(val>>(-shift)):(val<<shift))
61
62
63 #define ITT_BIG_ENDIAN(x) ((x << 24)) | \
64 ((x & 0x0000ff00) << 8) | \
65 ((x & 0x00ff0000) >> 8) | \
66 ((UWORD32)x >> 24);
67
68 #define NOP(nop_cnt) {UWORD32 nop_i; for (nop_i = 0; nop_i < nop_cnt; nop_i++) asm("nop");}
69
70 #define POPCNT_U32(x) __builtin_popcount(x)
71
72 #define PLD(a)
73 #define INLINE inline
74
CLZ(UWORD32 u4_word)75 static INLINE UWORD32 CLZ(UWORD32 u4_word)
76 {
77 if(u4_word)
78 return (__builtin_clz(u4_word));
79 else
80 return 31;
81 }
82
CLZNZ(UWORD32 u4_word)83 static INLINE UWORD32 CLZNZ(UWORD32 u4_word)
84 {
85 return (__builtin_clz(u4_word));
86 }
87
CTZ(UWORD32 u4_word)88 static INLINE UWORD32 CTZ(UWORD32 u4_word)
89 {
90 if(0 == u4_word)
91 return 31;
92 else
93 {
94 unsigned int index;
95 index = __builtin_ctz(u4_word);
96 return (UWORD32)index;
97 }
98 }
99
100 #define DATA_SYNC() __sync_synchronize()
101
102 /**
103 ******************************************************************************
104 * @brief returns postion of msb bit for 32bit input
105 ******************************************************************************
106 */
107 #define GET_POS_MSB_32(r,word) \
108 { \
109 if(word) \
110 { \
111 r = 31 - __builtin_clz(word); \
112 } \
113 else \
114 { \
115 r = -1; \
116 } \
117 }
118
119 /**
120 ******************************************************************************
121 * @brief returns postion of msb bit for 64bit input
122 ******************************************************************************
123 */
124 #define GET_POS_MSB_64(r,word) \
125 { \
126 if(word) \
127 { \
128 r = 63 - __builtin_clzll(word); \
129 } \
130 else \
131 { \
132 r = -1; \
133 } \
134 }
135
136
137 /**
138 ******************************************************************************
139 * @brief returns max number of bits required to represent input word (max 32bits)
140 ******************************************************************************
141 */
142 #define GETRANGE(r,word) \
143 { \
144 if(word) \
145 { \
146 r = 32 - __builtin_clz(word); \
147 } \
148 else \
149 { \
150 r = 1; \
151 } \
152 }
153
154 /**
155 *****************************************************************************************************
156 * @brief returns max number of bits required to represent input unsigned long long word (max 64bits)
157 *****************************************************************************************************
158 */
159 #define GETRANGE64(r,llword) \
160 { \
161 if(llword) \
162 { \
163 r = 64 - __builtin_clzll(llword); \
164 } \
165 else \
166 { \
167 r = 1; \
168 } \
169 }
170
171
172 #define GCC_ENABLE 0
173
174 #if GCC_ENABLE
175 #define _mm256_loadu2_m128i(X,Y) _mm256_insertf128_si256(_mm256_castsi128_si256(_mm_loadu_si128((Y))), _mm_loadu_si128((X)),1);
176
177 #define _mm256_storeu2_m128i(X,Y,Z) {_mm_storeu_si128 ((Y), _mm256_castsi256_si128((Z)));_mm_storeu_si128 ((X), _mm256_extracti128_si256((Z),1));}
178
179 #define _mm256_set_m128i(X,Y) _mm256_insertf128_si256(_mm256_castsi128_si256((Y)),(X),1);
180
181 #endif
182
183 #define PREFETCH_ENABLE 1
184
185 #if PREFETCH_ENABLE
186 #define PREFETCH(ptr, type) _mm_prefetch(ptr, type);
187 #else
188 #define PREFETCH(ptr, type)
189 #endif
190
191 #define MEM_ALIGN8 __attribute__ ((aligned (8)))
192 #define MEM_ALIGN16 __attribute__ ((aligned (16)))
193 #define MEM_ALIGN32 __attribute__ ((aligned (32)))
194
195 #endif /* _IHEVC_PLATFORM_MACROS_H_ */
196