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* ./plugins/chroma/i420_yuy2.h: bugfix for the I420 to YUY2 MMX chroma
[vlc.git] / plugins / chroma / i420_yuy2.h
blob170fdce7a5898d51d62ea1aba8f33538c5d9c693
1 /*****************************************************************************
2 * i420_yuy2.h : YUV to YUV conversion module for vlc
3 *****************************************************************************
4 * Copyright (C) 2000, 2001 VideoLAN
5 * $Id: i420_yuy2.h,v 1.6 2002/05/22 21:05:18 sam Exp $
6 *
7 * Authors: Samuel Hocevar <sam@zoy.org>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
23
24 #ifdef MODULE_NAME_IS_chroma_i420_yuy2_mmx
25
26 #define UNUSED_LONGLONG(foo) \
27 unsigned long long foo __asm__ (#foo) __attribute__((unused))
28 UNUSED_LONGLONG(woo_00ffw) = 0x00ff00ff00ff00ff;
29 UNUSED_LONGLONG(woo_80w) = 0x0000000080808080;
30
31 #define MMX_LOAD " \n\
32 movl %9,%%ebx \n\
33 "
34
35 #define MMX_SAVE " \n\
36 movl %%ebx,%9 \n\
37 "
38
39 #define MMX_INC " \n\
40 addl $8, %0 \n\
41 addl $8, %1 \n\
42 addl $4, %2 \n\
43 addl $4, %3 \n\
44 addl $2, %%eax \n\
45 addl $2, %%ebx \n\
46 "
47
48 #define MMX_CALL(MMX_INSTRUCTIONS) \
49 __asm__ __volatile__( \
50 MMX_LOAD \
51 ".align 8 \n\t" \
52 MMX_INSTRUCTIONS \
53 MMX_INC \
54 ".align 8 \n\t" \
55 MMX_INSTRUCTIONS \
56 MMX_INC \
57 MMX_SAVE \
58 : "=c" (p_line1), "=d" (p_line2), "=D" (p_y1), "=S" (p_y2) \
59 : "c" (p_line1), "d" (p_line2), "D" (p_y1), "S" (p_y2), \
60 "a" (p_u), "m" (p_v) \
61 : "ebx", "memory" );
62
63 #define MMX_YUV420_YUYV " \n\
64 movq (%2), %%mm0 # Load 8 Y y7 y6 y5 y4 y3 y2 y1 y0 \n\
65 movd (%%eax), %%mm1 # Load 4 Cb 00 00 00 00 u3 u2 u1 u0 \n\
66 movd (%%ebx), %%mm2 # Load 4 Cr 00 00 00 00 v3 v2 v1 v0 \n\
67 punpcklbw %%mm2, %%mm1 # v3 u3 v2 u2 v1 u1 v0 u0 \n\
68 movq %%mm0, %%mm2 # y7 y6 y5 y4 y3 y2 y1 y0 \n\
69 punpcklbw %%mm1, %%mm2 # v1 y3 u1 y2 v0 y1 u0 y0 \n\
70 movq %%mm2, (%0) # Store low YUYV \n\
71 punpckhbw %%mm1, %%mm0 # v3 y7 u3 y6 v2 y5 u2 y4 \n\
72 movq %%mm0, 8(%0) # Store high YUYV \n\
73 movq (%3), %%mm0 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 \n\
74 movq %%mm0, %%mm2 # Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 \n\
75 punpcklbw %%mm1, %%mm2 # v1 Y3 u1 Y2 v0 Y1 u0 Y0 \n\
76 movq %%mm2, (%1) # Store low YUYV \n\
77 punpckhbw %%mm1, %%mm0 # v3 Y7 u3 Y6 v2 Y5 u2 Y4 \n\
78 movq %%mm0, 8(%1) # Store high YUYV \n\
79 "
80
81 #define MMX_YUV420_YVYU " \n\
82 movq (%2), %%mm0 # Load 8 Y y7 y6 y5 y4 y3 y2 y1 y0 \n\
83 movd (%%eax), %%mm2 # Load 4 Cb 00 00 00 00 u3 u2 u1 u0 \n\
84 movd (%%ebx), %%mm1 # Load 4 Cr 00 00 00 00 v3 v2 v1 v0 \n\
85 punpcklbw %%mm2, %%mm1 # u3 v3 u2 v2 u1 v1 u0 v0 \n\
86 movq %%mm0, %%mm2 # y7 y6 y5 y4 y3 y2 y1 y0 \n\
87 punpcklbw %%mm1, %%mm2 # u1 y3 v1 y2 u0 y1 v0 y0 \n\
88 movq %%mm2, (%0) # Store low YUYV \n\
89 punpckhbw %%mm1, %%mm0 # u3 y7 v3 y6 u2 y5 v2 y4 \n\
90 movq %%mm0, 8(%0) # Store high YUYV \n\
91 movq (%3), %%mm0 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 \n\
92 movq %%mm0, %%mm2 # Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 \n\
93 punpcklbw %%mm1, %%mm2 # u1 Y3 v1 Y2 u0 Y1 v0 Y0 \n\
94 movq %%mm2, (%1) # Store low YUYV \n\
95 punpckhbw %%mm1, %%mm0 # u3 Y7 v3 Y6 u2 Y5 v2 Y4 \n\
96 movq %%mm0, 8(%1) # Store high YUYV \n\
97 "
98
99 #define MMX_YUV420_UYVY " \n\
100 movq (%2), %%mm0 # Load 8 Y y7 y6 y5 y4 y3 y2 y1 y0 \n\
101 movq (%3), %%mm3 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 \n\
102 movd (%%eax), %%mm2 # Load 4 Cb 00 00 00 00 u3 u2 u1 u0 \n\
103 movd (%%ebx), %%mm1 # Load 4 Cr 00 00 00 00 v3 v2 v1 v0 \n\
104 punpcklbw %%mm2, %%mm1 # u3 v3 u2 v2 u1 v1 u0 v0 \n\
105 movq %%mm1, %%mm2 # u3 v3 u2 v2 u1 v1 u0 v0 \n\
106 punpcklbw %%mm0, %%mm2 # y3 v1 y2 u1 y1 v0 y0 u0 \n\
107 movq %%mm2, (%0) # Store low UYVY \n\
108 movq %%mm1, %%mm2 # u3 v3 u2 v2 u1 v1 u0 v0 \n\
109 punpckhbw %%mm0, %%mm2 # y3 v1 y2 u1 y1 v0 y0 u0 \n\
110 movq %%mm2, 8(%0) # Store high UYVY \n\
111 movq %%mm1, %%mm2 # u3 v3 u2 v2 u1 v1 u0 v0 \n\
112 punpcklbw %%mm3, %%mm2 # Y3 v1 Y2 u1 Y1 v0 Y0 u0 \n\
113 movq %%mm2, (%1) # Store low UYVY \n\
114 punpckhbw %%mm3, %%mm1 # Y7 v3 Y6 u3 Y5 v2 Y4 u2 \n\
115 movq %%mm1, 8(%1) # Store high UYVY \n\
116 "
117
118 /* FIXME: this code does not work ! Chroma seems to be wrong. */
119 #define MMX_YUV420_Y211 " \n\
120 movq (%2), %%mm0 # Load 8 Y y7 y6 y5 y4 y3 y2 y1 y0 \n\
121 movq (%3), %%mm1 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 \n\
122 movd (%%eax), %%mm2 # Load 4 Cb 00 00 00 00 u3 u2 u1 u0 \n\
123 movd (%%ebx), %%mm3 # Load 4 Cr 00 00 00 00 v3 v2 v1 v0 \n\
124 pand woo_00ffw, %%mm0 # get Y even 00 Y6 00 Y4 00 Y2 00 Y0 \n\
125 packuswb %%mm0, %%mm0 # pack Y y6 y4 y2 y0 y6 y4 y2 y0 \n\
126 pand woo_00ffw, %%mm2 # get U even 00 u6 00 u4 00 u2 00 u0 \n\
127 packuswb %%mm2, %%mm2 # pack U 00 00 u2 u0 00 00 u2 u0 \n\
128 pand woo_00ffw, %%mm3 # get V even 00 v6 00 v4 00 v2 00 v0 \n\
129 packuswb %%mm3, %%mm3 # pack V 00 00 v2 v0 00 00 v2 v0 \n\
130 punpcklbw %%mm3, %%mm2 # 00 00 00 00 v2 u2 v0 u0 \n\
131 psubsw woo_80w, %%mm2 # U,V -= 128 \n\
132 punpcklbw %%mm2, %%mm0 # v2 y6 u2 y4 v0 y2 u0 y0 \n\
133 movq %%mm0, (%0) # Store YUYV \n\
134 pand woo_00ffw, %%mm1 # get Y even 00 Y6 00 Y4 00 Y2 00 Y0 \n\
135 packuswb %%mm1, %%mm1 # pack Y Y6 Y4 Y2 Y0 Y6 Y4 Y2 Y0 \n\
136 punpcklbw %%mm2, %%mm1 # v2 Y6 u2 Y4 v0 Y2 u0 Y0 \n\
137 movq %%mm1, (%1) # Store YUYV \n\
138 "
139
140 #else
141
142 #define C_YUV420_YUYV( ) \
143 *(p_line1)++ = *(p_y1)++; *(p_line2)++ = *(p_y2)++; \
144 *(p_line1)++ = *(p_line2)++ = *(p_u)++; \
145 *(p_line1)++ = *(p_y1)++; *(p_line2)++ = *(p_y2)++; \
146 *(p_line1)++ = *(p_line2)++ = *(p_v)++; \
147
148 #define C_YUV420_YVYU( ) \
149 *(p_line1)++ = *(p_y1)++; *(p_line2)++ = *(p_y2)++; \
150 *(p_line1)++ = *(p_line2)++ = *(p_v)++; \
151 *(p_line1)++ = *(p_y1)++; *(p_line2)++ = *(p_y2)++; \
152 *(p_line1)++ = *(p_line2)++ = *(p_u)++; \
153
154 #define C_YUV420_UYVY( ) \
155 *(p_line1)++ = *(p_line2)++ = *(p_u)++; \
156 *(p_line1)++ = *(p_y1)++; *(p_line2)++ = *(p_y2)++; \
157 *(p_line1)++ = *(p_line2)++ = *(p_v)++; \
158 *(p_line1)++ = *(p_y1)++; *(p_line2)++ = *(p_y2)++; \
159
160 #define C_YUV420_Y211( ) \
161 *(p_line1)++ = *(p_y1); ((u16*)p_y1)++; \
162 *(p_line2)++ = *(p_y2); ((u16*)p_y2)++; \
163 *(p_line1)++ = *(p_line2)++ = *(p_u) - 0x80; ((u16*)p_u)++; \
164 *(p_line1)++ = *(p_y1); ((u16*)p_y1)++; \
165 *(p_line2)++ = *(p_y2); ((u16*)p_y2)++; \
166 *(p_line1)++ = *(p_line2)++ = *(p_v) - 0x80; ((u16*)p_v)++; \
167
168 #endif
169
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