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h264chroma_template.c
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1 /*
2  * Copyright (c) 2000, 2001 Fabrice Bellard
3  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include "libavutil/avassert.h"
23 
24 #include "bit_depth_template.c"
25 
26 #define H264_CHROMA_MC(OPNAME, OP)\
27 static void FUNCC(OPNAME ## h264_chroma_mc1)(uint8_t *_dst/*align 8*/, uint8_t *_src/*align 1*/, int stride, int h, int x, int y){\
28  pixel *dst = (pixel*)_dst;\
29  pixel *src = (pixel*)_src;\
30  const int A=(8-x)*(8-y);\
31  const int B=( x)*(8-y);\
32  const int C=(8-x)*( y);\
33  const int D=( x)*( y);\
34  int i;\
35  stride >>= sizeof(pixel)-1;\
36  \
37  av_assert2(x<8 && y<8 && x>=0 && y>=0);\
38 \
39  if(D){\
40  for(i=0; i<h; i++){\
41  OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1]));\
42  dst+= stride;\
43  src+= stride;\
44  }\
45  } else if (B + C) {\
46  const int E= B+C;\
47  const int step= C ? stride : 1;\
48  for(i=0; i<h; i++){\
49  OP(dst[0], (A*src[0] + E*src[step+0]));\
50  dst+= stride;\
51  src+= stride;\
52  }\
53  } else {\
54  for(i=0; i<h; i++){\
55  OP(dst[0], (A*src[0]));\
56  dst+= stride;\
57  src+= stride;\
58  }\
59  }\
60 }\
61 static void FUNCC(OPNAME ## h264_chroma_mc2)(uint8_t *_dst/*align 8*/, uint8_t *_src/*align 1*/, int stride, int h, int x, int y){\
62  pixel *dst = (pixel*)_dst;\
63  pixel *src = (pixel*)_src;\
64  const int A=(8-x)*(8-y);\
65  const int B=( x)*(8-y);\
66  const int C=(8-x)*( y);\
67  const int D=( x)*( y);\
68  int i;\
69  stride >>= sizeof(pixel)-1;\
70  \
71  av_assert2(x<8 && y<8 && x>=0 && y>=0);\
72 \
73  if(D){\
74  for(i=0; i<h; i++){\
75  OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1]));\
76  OP(dst[1], (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2]));\
77  dst+= stride;\
78  src+= stride;\
79  }\
80  } else if (B + C) {\
81  const int E= B+C;\
82  const int step= C ? stride : 1;\
83  for(i=0; i<h; i++){\
84  OP(dst[0], (A*src[0] + E*src[step+0]));\
85  OP(dst[1], (A*src[1] + E*src[step+1]));\
86  dst+= stride;\
87  src+= stride;\
88  }\
89  } else {\
90  for ( i = 0; i < h; i++){\
91  OP(dst[0], A * src[0]);\
92  OP(dst[1], A * src[1]);\
93  dst += stride;\
94  src += stride;\
95  }\
96  }\
97 }\
98 \
99 static void FUNCC(OPNAME ## h264_chroma_mc4)(uint8_t *_dst/*align 8*/, uint8_t *_src/*align 1*/, int stride, int h, int x, int y){\
100  pixel *dst = (pixel*)_dst;\
101  pixel *src = (pixel*)_src;\
102  const int A=(8-x)*(8-y);\
103  const int B=( x)*(8-y);\
104  const int C=(8-x)*( y);\
105  const int D=( x)*( y);\
106  int i;\
107  stride >>= sizeof(pixel)-1;\
108  \
109  av_assert2(x<8 && y<8 && x>=0 && y>=0);\
110 \
111  if(D){\
112  for(i=0; i<h; i++){\
113  OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1]));\
114  OP(dst[1], (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2]));\
115  OP(dst[2], (A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3]));\
116  OP(dst[3], (A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4]));\
117  dst+= stride;\
118  src+= stride;\
119  }\
120  } else if (B + C) {\
121  const int E= B+C;\
122  const int step= C ? stride : 1;\
123  for(i=0; i<h; i++){\
124  OP(dst[0], (A*src[0] + E*src[step+0]));\
125  OP(dst[1], (A*src[1] + E*src[step+1]));\
126  OP(dst[2], (A*src[2] + E*src[step+2]));\
127  OP(dst[3], (A*src[3] + E*src[step+3]));\
128  dst+= stride;\
129  src+= stride;\
130  }\
131  } else {\
132  for ( i = 0; i < h; i++){\
133  OP(dst[0], A * src[0]);\
134  OP(dst[1], A * src[1]);\
135  OP(dst[2], A * src[2]);\
136  OP(dst[3], A * src[3]);\
137  dst += stride;\
138  src += stride;\
139  }\
140  }\
141 }\
142 \
143 static void FUNCC(OPNAME ## h264_chroma_mc8)(uint8_t *_dst/*align 8*/, uint8_t *_src/*align 1*/, int stride, int h, int x, int y){\
144  pixel *dst = (pixel*)_dst;\
145  pixel *src = (pixel*)_src;\
146  const int A=(8-x)*(8-y);\
147  const int B=( x)*(8-y);\
148  const int C=(8-x)*( y);\
149  const int D=( x)*( y);\
150  int i;\
151  stride >>= sizeof(pixel)-1;\
152  \
153  av_assert2(x<8 && y<8 && x>=0 && y>=0);\
154 \
155  if(D){\
156  for(i=0; i<h; i++){\
157  OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1]));\
158  OP(dst[1], (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2]));\
159  OP(dst[2], (A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3]));\
160  OP(dst[3], (A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4]));\
161  OP(dst[4], (A*src[4] + B*src[5] + C*src[stride+4] + D*src[stride+5]));\
162  OP(dst[5], (A*src[5] + B*src[6] + C*src[stride+5] + D*src[stride+6]));\
163  OP(dst[6], (A*src[6] + B*src[7] + C*src[stride+6] + D*src[stride+7]));\
164  OP(dst[7], (A*src[7] + B*src[8] + C*src[stride+7] + D*src[stride+8]));\
165  dst+= stride;\
166  src+= stride;\
167  }\
168  } else if (B + C) {\
169  const int E= B+C;\
170  const int step= C ? stride : 1;\
171  for(i=0; i<h; i++){\
172  OP(dst[0], (A*src[0] + E*src[step+0]));\
173  OP(dst[1], (A*src[1] + E*src[step+1]));\
174  OP(dst[2], (A*src[2] + E*src[step+2]));\
175  OP(dst[3], (A*src[3] + E*src[step+3]));\
176  OP(dst[4], (A*src[4] + E*src[step+4]));\
177  OP(dst[5], (A*src[5] + E*src[step+5]));\
178  OP(dst[6], (A*src[6] + E*src[step+6]));\
179  OP(dst[7], (A*src[7] + E*src[step+7]));\
180  dst+= stride;\
181  src+= stride;\
182  }\
183  } else {\
184  for ( i = 0; i < h; i++){\
185  OP(dst[0], A * src[0]);\
186  OP(dst[1], A * src[1]);\
187  OP(dst[2], A * src[2]);\
188  OP(dst[3], A * src[3]);\
189  OP(dst[4], A * src[4]);\
190  OP(dst[5], A * src[5]);\
191  OP(dst[6], A * src[6]);\
192  OP(dst[7], A * src[7]);\
193  dst += stride;\
194  src += stride;\
195  }\
196  }\
197 }
198 
199 #define op_avg(a, b) a = (((a)+(((b) + 32)>>6)+1)>>1)
200 #define op_put(a, b) a = (((b) + 32)>>6)
201 
202 H264_CHROMA_MC(put_ , op_put)
203 H264_CHROMA_MC(avg_ , op_avg)
204 #undef op_avg
205 #undef op_put
op_put
#define op_put(a, b)
Definition: h264chroma_template.c:200
H264_CHROMA_MC
#define H264_CHROMA_MC(OPNAME, OP)
Definition: h264chroma_template.c:26
avassert.h
simple assert() macros that are a bit more flexible than ISO C assert().
op_avg
#define op_avg(a, b)
Definition: h264chroma_template.c:199
bit_depth_template.c
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