configure: Drop bogus xcb_event variables
[libav.git] / libavcodec / h264chroma_template.c
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 Libav.
6 *
7 * Libav 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 * Libav 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 Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include <assert.h>
23 #include <stddef.h>
24
25 #include "bit_depth_template.c"
26
27 #define H264_CHROMA_MC(OPNAME, OP)\
28 static void FUNCC(OPNAME ## h264_chroma_mc2)(uint8_t *_dst /*align 8*/, uint8_t *_src /*align 1*/, ptrdiff_t stride, int h, int x, int y)\
29 {\
30 pixel *dst = (pixel*)_dst;\
31 pixel *src = (pixel*)_src;\
32 const int A=(8-x)*(8-y);\
33 const int B=( x)*(8-y);\
34 const int C=(8-x)*( y);\
35 const int D=( x)*( y);\
36 int i;\
37 stride /= sizeof(pixel);\
38 \
39 assert(x<8 && y<8 && x>=0 && y>=0);\
40 \
41 if(D){\
42 for(i=0; i<h; i++){\
43 OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1]));\
44 OP(dst[1], (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2]));\
45 dst+= stride;\
46 src+= stride;\
47 }\
48 } else if (B + C) {\
49 const int E= B+C;\
50 const ptrdiff_t step = C ? stride : 1;\
51 for(i=0; i<h; i++){\
52 OP(dst[0], (A*src[0] + E*src[step+0]));\
53 OP(dst[1], (A*src[1] + E*src[step+1]));\
54 dst+= stride;\
55 src+= stride;\
56 }\
57 } else {\
58 for ( i = 0; i < h; i++){\
59 OP(dst[0], A * src[0]);\
60 OP(dst[1], A * src[1]);\
61 dst += stride;\
62 src += stride;\
63 }\
64 }\
65 }\
66 \
67 static void FUNCC(OPNAME ## h264_chroma_mc4)(uint8_t *_dst /*align 8*/, uint8_t *_src /*align 1*/, ptrdiff_t stride, int h, int x, int y)\
68 {\
69 pixel *dst = (pixel*)_dst;\
70 pixel *src = (pixel*)_src;\
71 const int A=(8-x)*(8-y);\
72 const int B=( x)*(8-y);\
73 const int C=(8-x)*( y);\
74 const int D=( x)*( y);\
75 int i;\
76 stride /= sizeof(pixel);\
77 \
78 assert(x<8 && y<8 && x>=0 && y>=0);\
79 \
80 if(D){\
81 for(i=0; i<h; i++){\
82 OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1]));\
83 OP(dst[1], (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2]));\
84 OP(dst[2], (A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3]));\
85 OP(dst[3], (A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4]));\
86 dst+= stride;\
87 src+= stride;\
88 }\
89 } else if (B + C) {\
90 const int E= B+C;\
91 const ptrdiff_t step = C ? stride : 1;\
92 for(i=0; i<h; i++){\
93 OP(dst[0], (A*src[0] + E*src[step+0]));\
94 OP(dst[1], (A*src[1] + E*src[step+1]));\
95 OP(dst[2], (A*src[2] + E*src[step+2]));\
96 OP(dst[3], (A*src[3] + E*src[step+3]));\
97 dst+= stride;\
98 src+= stride;\
99 }\
100 } else {\
101 for ( i = 0; i < h; i++){\
102 OP(dst[0], A * src[0]);\
103 OP(dst[1], A * src[1]);\
104 OP(dst[2], A * src[2]);\
105 OP(dst[3], A * src[3]);\
106 dst += stride;\
107 src += stride;\
108 }\
109 }\
110 }\
111 \
112 static void FUNCC(OPNAME ## h264_chroma_mc8)(uint8_t *_dst /*align 8*/, uint8_t *_src /*align 1*/, ptrdiff_t stride, int h, int x, int y)\
113 {\
114 pixel *dst = (pixel*)_dst;\
115 pixel *src = (pixel*)_src;\
116 const int A=(8-x)*(8-y);\
117 const int B=( x)*(8-y);\
118 const int C=(8-x)*( y);\
119 const int D=( x)*( y);\
120 int i;\
121 stride /= sizeof(pixel);\
122 \
123 assert(x<8 && y<8 && x>=0 && y>=0);\
124 \
125 if(D){\
126 for(i=0; i<h; i++){\
127 OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1]));\
128 OP(dst[1], (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2]));\
129 OP(dst[2], (A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3]));\
130 OP(dst[3], (A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4]));\
131 OP(dst[4], (A*src[4] + B*src[5] + C*src[stride+4] + D*src[stride+5]));\
132 OP(dst[5], (A*src[5] + B*src[6] + C*src[stride+5] + D*src[stride+6]));\
133 OP(dst[6], (A*src[6] + B*src[7] + C*src[stride+6] + D*src[stride+7]));\
134 OP(dst[7], (A*src[7] + B*src[8] + C*src[stride+7] + D*src[stride+8]));\
135 dst+= stride;\
136 src+= stride;\
137 }\
138 } else if (B + C) {\
139 const int E= B+C;\
140 const ptrdiff_t step = C ? stride : 1;\
141 for(i=0; i<h; i++){\
142 OP(dst[0], (A*src[0] + E*src[step+0]));\
143 OP(dst[1], (A*src[1] + E*src[step+1]));\
144 OP(dst[2], (A*src[2] + E*src[step+2]));\
145 OP(dst[3], (A*src[3] + E*src[step+3]));\
146 OP(dst[4], (A*src[4] + E*src[step+4]));\
147 OP(dst[5], (A*src[5] + E*src[step+5]));\
148 OP(dst[6], (A*src[6] + E*src[step+6]));\
149 OP(dst[7], (A*src[7] + E*src[step+7]));\
150 dst+= stride;\
151 src+= stride;\
152 }\
153 } else {\
154 for ( i = 0; i < h; i++){\
155 OP(dst[0], A * src[0]);\
156 OP(dst[1], A * src[1]);\
157 OP(dst[2], A * src[2]);\
158 OP(dst[3], A * src[3]);\
159 OP(dst[4], A * src[4]);\
160 OP(dst[5], A * src[5]);\
161 OP(dst[6], A * src[6]);\
162 OP(dst[7], A * src[7]);\
163 dst += stride;\
164 src += stride;\
165 }\
166 }\
167 }
168
169 #define op_avg(a, b) a = (((a)+(((b) + 32)>>6)+1)>>1)
170 #define op_put(a, b) a = (((b) + 32)>>6)
171
172 H264_CHROMA_MC(put_ , op_put)
173 H264_CHROMA_MC(avg_ , op_avg)
174 #undef op_avg
175 #undef op_put