2 * MMX optimized DSP utils
3 * Copyright (c) 2007 Aurelien Jacobs <aurel@gnuage.org>
5 * This file is part of FFmpeg.
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.
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.
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
22 #ifndef AVCODEC_I386_DSPUTIL_MMX_H
23 #define AVCODEC_I386_DSPUTIL_MMX_H
26 #include "libavcodec/dsputil.h"
28 typedef struct { uint64_t a, b; } xmm_t;
30 extern const uint64_t ff_bone;
31 extern const uint64_t ff_wtwo;
33 extern const uint64_t ff_pdw_80000000[2];
35 extern const uint64_t ff_pw_3;
36 extern const uint64_t ff_pw_4;
37 extern const xmm_t ff_pw_5;
38 extern const xmm_t ff_pw_8;
39 extern const uint64_t ff_pw_15;
40 extern const xmm_t ff_pw_16;
41 extern const uint64_t ff_pw_20;
42 extern const xmm_t ff_pw_28;
43 extern const xmm_t ff_pw_32;
44 extern const uint64_t ff_pw_42;
45 extern const uint64_t ff_pw_64;
46 extern const uint64_t ff_pw_96;
47 extern const uint64_t ff_pw_128;
48 extern const uint64_t ff_pw_255;
50 extern const uint64_t ff_pb_1;
51 extern const uint64_t ff_pb_3;
52 extern const uint64_t ff_pb_7;
53 extern const uint64_t ff_pb_3F;
54 extern const uint64_t ff_pb_A1;
55 extern const uint64_t ff_pb_FC;
57 extern const double ff_pd_1[2];
58 extern const double ff_pd_2[2];
60 #define LOAD4(stride,in,a,b,c,d)\
61 "movq 0*"#stride"+"#in", "#a"\n\t"\
62 "movq 1*"#stride"+"#in", "#b"\n\t"\
63 "movq 2*"#stride"+"#in", "#c"\n\t"\
64 "movq 3*"#stride"+"#in", "#d"\n\t"
66 #define STORE4(stride,out,a,b,c,d)\
67 "movq "#a", 0*"#stride"+"#out"\n\t"\
68 "movq "#b", 1*"#stride"+"#out"\n\t"\
69 "movq "#c", 2*"#stride"+"#out"\n\t"\
70 "movq "#d", 3*"#stride"+"#out"\n\t"
72 /* in/out: mma=mma+mmb, mmb=mmb-mma */
73 #define SUMSUB_BA( a, b ) \
74 "paddw "#b", "#a" \n\t"\
75 "paddw "#b", "#b" \n\t"\
76 "psubw "#a", "#b" \n\t"
78 #define SBUTTERFLY(a,b,t,n,m)\
79 "mov" #m " " #a ", " #t " \n\t" /* abcd */\
80 "punpckl" #n " " #b ", " #a " \n\t" /* aebf */\
81 "punpckh" #n " " #b ", " #t " \n\t" /* cgdh */\
83 #define TRANSPOSE4(a,b,c,d,t)\
84 SBUTTERFLY(a,b,t,wd,q) /* a=aebf t=cgdh */\
85 SBUTTERFLY(c,d,b,wd,q) /* c=imjn b=kolp */\
86 SBUTTERFLY(a,c,d,dq,q) /* a=aeim d=bfjn */\
87 SBUTTERFLY(t,b,c,dq,q) /* t=cgko c=dhlp */
90 // permutes 01234567 -> 05736421
91 #define TRANSPOSE8(a,b,c,d,e,f,g,h,t)\
92 SBUTTERFLY(a,b,%%xmm8,wd,dqa)\
93 SBUTTERFLY(c,d,b,wd,dqa)\
94 SBUTTERFLY(e,f,d,wd,dqa)\
95 SBUTTERFLY(g,h,f,wd,dqa)\
96 SBUTTERFLY(a,c,h,dq,dqa)\
97 SBUTTERFLY(%%xmm8,b,c,dq,dqa)\
98 SBUTTERFLY(e,g,b,dq,dqa)\
99 SBUTTERFLY(d,f,g,dq,dqa)\
100 SBUTTERFLY(a,e,f,qdq,dqa)\
101 SBUTTERFLY(%%xmm8,d,e,qdq,dqa)\
102 SBUTTERFLY(h,b,d,qdq,dqa)\
103 SBUTTERFLY(c,g,b,qdq,dqa)\
104 "movdqa %%xmm8, "#g" \n\t"
106 #define TRANSPOSE8(a,b,c,d,e,f,g,h,t)\
107 "movdqa "#h", "#t" \n\t"\
108 SBUTTERFLY(a,b,h,wd,dqa)\
109 "movdqa "#h", 16"#t" \n\t"\
110 "movdqa "#t", "#h" \n\t"\
111 SBUTTERFLY(c,d,b,wd,dqa)\
112 SBUTTERFLY(e,f,d,wd,dqa)\
113 SBUTTERFLY(g,h,f,wd,dqa)\
114 SBUTTERFLY(a,c,h,dq,dqa)\
115 "movdqa "#h", "#t" \n\t"\
116 "movdqa 16"#t", "#h" \n\t"\
117 SBUTTERFLY(h,b,c,dq,dqa)\
118 SBUTTERFLY(e,g,b,dq,dqa)\
119 SBUTTERFLY(d,f,g,dq,dqa)\
120 SBUTTERFLY(a,e,f,qdq,dqa)\
121 SBUTTERFLY(h,d,e,qdq,dqa)\
122 "movdqa "#h", 16"#t" \n\t"\
123 "movdqa "#t", "#h" \n\t"\
124 SBUTTERFLY(h,b,d,qdq,dqa)\
125 SBUTTERFLY(c,g,b,qdq,dqa)\
126 "movdqa 16"#t", "#g" \n\t"
129 #define MOVQ_WONE(regd) \
131 "pcmpeqd %%" #regd ", %%" #regd " \n\t" \
132 "psrlw $15, %%" #regd ::)
134 void dsputilenc_init_mmx(DSPContext* c, AVCodecContext *avctx);
136 #endif /* AVCODEC_I386_DSPUTIL_MMX_H */