2 * Copyright (c) 2000, 2001 Fabrice Bellard
3 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5 * This file is part of Libav.
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.
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.
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
24 #include "bit_depth_template.c"
26 #define H264_CHROMA_MC(OPNAME, OP)\
27 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){\
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);\
35 stride /= sizeof(pixel);\
37 assert(x<8 && y<8 && x>=0 && y>=0);\
41 OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1]));\
42 OP(dst[1], (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2]));\
48 const int step= C ? stride : 1;\
50 OP(dst[0], (A*src[0] + E*src[step+0]));\
51 OP(dst[1], (A*src[1] + E*src[step+1]));\
58 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){\
59 pixel *dst = (pixel*)_dst;\
60 pixel *src = (pixel*)_src;\
61 const int A=(8-x)*(8-y);\
62 const int B=( x)*(8-y);\
63 const int C=(8-x)*( y);\
64 const int D=( x)*( y);\
66 stride /= sizeof(pixel);\
68 assert(x<8 && y<8 && x>=0 && y>=0);\
72 OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1]));\
73 OP(dst[1], (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2]));\
74 OP(dst[2], (A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3]));\
75 OP(dst[3], (A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4]));\
81 const int step= C ? stride : 1;\
83 OP(dst[0], (A*src[0] + E*src[step+0]));\
84 OP(dst[1], (A*src[1] + E*src[step+1]));\
85 OP(dst[2], (A*src[2] + E*src[step+2]));\
86 OP(dst[3], (A*src[3] + E*src[step+3]));\
93 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){\
94 pixel *dst = (pixel*)_dst;\
95 pixel *src = (pixel*)_src;\
96 const int A=(8-x)*(8-y);\
97 const int B=( x)*(8-y);\
98 const int C=(8-x)*( y);\
99 const int D=( x)*( y);\
101 stride /= sizeof(pixel);\
103 assert(x<8 && y<8 && x>=0 && y>=0);\
107 OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1]));\
108 OP(dst[1], (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2]));\
109 OP(dst[2], (A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3]));\
110 OP(dst[3], (A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4]));\
111 OP(dst[4], (A*src[4] + B*src[5] + C*src[stride+4] + D*src[stride+5]));\
112 OP(dst[5], (A*src[5] + B*src[6] + C*src[stride+5] + D*src[stride+6]));\
113 OP(dst[6], (A*src[6] + B*src[7] + C*src[stride+6] + D*src[stride+7]));\
114 OP(dst[7], (A*src[7] + B*src[8] + C*src[stride+7] + D*src[stride+8]));\
120 const int step= C ? stride : 1;\
122 OP(dst[0], (A*src[0] + E*src[step+0]));\
123 OP(dst[1], (A*src[1] + E*src[step+1]));\
124 OP(dst[2], (A*src[2] + E*src[step+2]));\
125 OP(dst[3], (A*src[3] + E*src[step+3]));\
126 OP(dst[4], (A*src[4] + E*src[step+4]));\
127 OP(dst[5], (A*src[5] + E*src[step+5]));\
128 OP(dst[6], (A*src[6] + E*src[step+6]));\
129 OP(dst[7], (A*src[7] + E*src[step+7]));\
136 #define op_avg(a, b) a = (((a)+(((b) + 32)>>6)+1)>>1)
137 #define op_put(a, b) a = (((b) + 32)>>6)
139 H264_CHROMA_MC(put_ , op_put)
140 H264_CHROMA_MC(avg_ , op_avg)