vlc-0.8.4a: /home/huihoo/src/vlc/vlc-0.8.4a/modules/video_chroma/i420

00001 /*****************************************************************************
00002  * i420_yuy2.h : YUV to YUV conversion module for vlc
00003  *****************************************************************************
00004  * Copyright (C) 2000, 2001 the VideoLAN team
00005  * $Id: i420_yuy2.h 11664 2005-07-09 06:17:09Z courmisch $
00006  *
00007  * Authors: Samuel Hocevar <[email protected]>
00008  *
00009  * This program is free software; you can redistribute it and/or modify
00010  * it under the terms of the GNU General Public License as published by
00011  * the Free Software Foundation; either version 2 of the License, or
00012  * (at your option) any later version.
00013  * 
00014  * This program is distributed in the hope that it will be useful,
00015  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00016  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00017  * GNU General Public License for more details.
00018  *
00019  * You should have received a copy of the GNU General Public License
00020  * along with this program; if not, write to the Free Software
00021  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
00022  *****************************************************************************/
00023 
00024 #ifdef MODULE_NAME_IS_i420_yuy2_mmx
00025 
00026 #define MMX_CALL(MMX_INSTRUCTIONS)                                          \
00027     do {                                                                    \
00028     __asm__ __volatile__(                                                   \
00029         ".align 8 \n\t"                                                     \
00030         MMX_INSTRUCTIONS                                                    \
00031         :                                                                   \
00032         : "r" (p_line1),  "r" (p_line2),  "r" (p_y1),  "r" (p_y2),          \
00033           "r" (p_u), "r" (p_v) );                                           \
00034     p_line1 += 16; p_line2 += 16; p_y1 += 8; p_y2 += 8; p_u += 4; p_v += 4; \
00035     } while(0);                                                             \
00036 
00037 #define MMX_YUV420_YUYV "                                                 \n\
00038 movq       (%2), %%mm0  # Load 8 Y            y7 y6 y5 y4 y3 y2 y1 y0     \n\
00039 movd       (%4), %%mm1  # Load 4 Cb           00 00 00 00 u3 u2 u1 u0     \n\
00040 movd       (%5), %%mm2  # Load 4 Cr           00 00 00 00 v3 v2 v1 v0     \n\
00041 punpcklbw %%mm2, %%mm1  #                     v3 u3 v2 u2 v1 u1 v0 u0     \n\
00042 movq      %%mm0, %%mm2  #                     y7 y6 y5 y4 y3 y2 y1 y0     \n\
00043 punpcklbw %%mm1, %%mm2  #                     v1 y3 u1 y2 v0 y1 u0 y0     \n\
00044 movq      %%mm2, (%0)   # Store low YUYV                                  \n\
00045 punpckhbw %%mm1, %%mm0  #                     v3 y7 u3 y6 v2 y5 u2 y4     \n\
00046 movq      %%mm0, 8(%0)  # Store high YUYV                                 \n\
00047 movq       (%3), %%mm0  # Load 8 Y            Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0     \n\
00048 movq      %%mm0, %%mm2  #                     Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0     \n\
00049 punpcklbw %%mm1, %%mm2  #                     v1 Y3 u1 Y2 v0 Y1 u0 Y0     \n\
00050 movq      %%mm2, (%1)   # Store low YUYV                                  \n\
00051 punpckhbw %%mm1, %%mm0  #                     v3 Y7 u3 Y6 v2 Y5 u2 Y4     \n\
00052 movq      %%mm0, 8(%1)  # Store high YUYV                                 \n\
00053 "
00054 
00055 #define MMX_YUV420_YVYU "                                                 \n\
00056 movq       (%2), %%mm0  # Load 8 Y            y7 y6 y5 y4 y3 y2 y1 y0     \n\
00057 movd       (%4), %%mm2  # Load 4 Cb           00 00 00 00 u3 u2 u1 u0     \n\
00058 movd       (%5), %%mm1  # Load 4 Cr           00 00 00 00 v3 v2 v1 v0     \n\
00059 punpcklbw %%mm2, %%mm1  #                     u3 v3 u2 v2 u1 v1 u0 v0     \n\
00060 movq      %%mm0, %%mm2  #                     y7 y6 y5 y4 y3 y2 y1 y0     \n\
00061 punpcklbw %%mm1, %%mm2  #                     u1 y3 v1 y2 u0 y1 v0 y0     \n\
00062 movq      %%mm2, (%0)   # Store low YUYV                                  \n\
00063 punpckhbw %%mm1, %%mm0  #                     u3 y7 v3 y6 u2 y5 v2 y4     \n\
00064 movq      %%mm0, 8(%0)  # Store high YUYV                                 \n\
00065 movq       (%3), %%mm0  # Load 8 Y            Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0     \n\
00066 movq      %%mm0, %%mm2  #                     Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0     \n\
00067 punpcklbw %%mm1, %%mm2  #                     u1 Y3 v1 Y2 u0 Y1 v0 Y0     \n\
00068 movq      %%mm2, (%1)   # Store low YUYV                                  \n\
00069 punpckhbw %%mm1, %%mm0  #                     u3 Y7 v3 Y6 u2 Y5 v2 Y4     \n\
00070 movq      %%mm0, 8(%1)  # Store high YUYV                                 \n\
00071 "
00072 
00073 #define MMX_YUV420_UYVY "                                                 \n\
00074 movq       (%2), %%mm0  # Load 8 Y            y7 y6 y5 y4 y3 y2 y1 y0     \n\
00075 movq       (%3), %%mm3  # Load 8 Y            Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0     \n\
00076 movd       (%4), %%mm2  # Load 4 Cb           00 00 00 00 u3 u2 u1 u0     \n\
00077 movd       (%5), %%mm1  # Load 4 Cr           00 00 00 00 v3 v2 v1 v0     \n\
00078 punpcklbw %%mm2, %%mm1  #                     u3 v3 u2 v2 u1 v1 u0 v0     \n\
00079 movq      %%mm1, %%mm2  #                     u3 v3 u2 v2 u1 v1 u0 v0     \n\
00080 punpcklbw %%mm0, %%mm2  #                     y3 v1 y2 u1 y1 v0 y0 u0     \n\
00081 movq      %%mm2, (%0)   # Store low UYVY                                  \n\
00082 movq      %%mm1, %%mm2  #                     u3 v3 u2 v2 u1 v1 u0 v0     \n\
00083 punpckhbw %%mm0, %%mm2  #                     y3 v1 y2 u1 y1 v0 y0 u0     \n\
00084 movq      %%mm2, 8(%0)  # Store high UYVY                                 \n\
00085 movq      %%mm1, %%mm2  #                     u3 v3 u2 v2 u1 v1 u0 v0     \n\
00086 punpcklbw %%mm3, %%mm2  #                     Y3 v1 Y2 u1 Y1 v0 Y0 u0     \n\
00087 movq      %%mm2, (%1)   # Store low UYVY                                  \n\
00088 punpckhbw %%mm3, %%mm1  #                     Y7 v3 Y6 u3 Y5 v2 Y4 u2     \n\
00089 movq      %%mm1, 8(%1)  # Store high UYVY                                 \n\
00090 "
00091 
00092 /* FIXME: this code does not work ! Chroma seems to be wrong. */
00093 #define MMX_YUV420_Y211 "                                                 \n\
00094 movq       (%2), %%mm0  # Load 8 Y            y7 y6 y5 y4 y3 y2 y1 y0     \n\
00095 movq       (%3), %%mm1  # Load 8 Y            Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0     \n\
00096 movd       (%4), %%mm2  # Load 4 Cb           00 00 00 00 u3 u2 u1 u0     \n\
00097 movd       (%5), %%mm3  # Load 4 Cr           00 00 00 00 v3 v2 v1 v0     \n\
00098 pand    i_00ffw, %%mm0  # get Y even          00 Y6 00 Y4 00 Y2 00 Y0     \n\
00099 packuswb  %%mm0, %%mm0  # pack Y              y6 y4 y2 y0 y6 y4 y2 y0     \n\
00100 pand    i_00ffw, %%mm2  # get U even          00 u6 00 u4 00 u2 00 u0     \n\
00101 packuswb  %%mm2, %%mm2  # pack U              00 00 u2 u0 00 00 u2 u0     \n\
00102 pand    i_00ffw, %%mm3  # get V even          00 v6 00 v4 00 v2 00 v0     \n\
00103 packuswb  %%mm3, %%mm3  # pack V              00 00 v2 v0 00 00 v2 v0     \n\
00104 punpcklbw %%mm3, %%mm2  #                     00 00 00 00 v2 u2 v0 u0     \n\
00105 psubsw    i_80w, %%mm2  # U,V -= 128                                      \n\
00106 punpcklbw %%mm2, %%mm0  #                     v2 y6 u2 y4 v0 y2 u0 y0     \n\
00107 movq      %%mm0, (%0)   # Store YUYV                                      \n\
00108 pand    i_00ffw, %%mm1  # get Y even          00 Y6 00 Y4 00 Y2 00 Y0     \n\
00109 packuswb  %%mm1, %%mm1  # pack Y              Y6 Y4 Y2 Y0 Y6 Y4 Y2 Y0     \n\
00110 punpcklbw %%mm2, %%mm1  #                     v2 Y6 u2 Y4 v0 Y2 u0 Y0     \n\
00111 movq      %%mm1, (%1)   # Store YUYV                                      \n\
00112 "
00113 
00114 #else
00115 
00116 #define C_YUV420_YVYU( )                                                    \
00117     *(p_line1)++ = *(p_y1)++; *(p_line2)++ = *(p_y2)++;                     \
00118     *(p_line1)++ =            *(p_line2)++ = *(p_v)++;                      \
00119     *(p_line1)++ = *(p_y1)++; *(p_line2)++ = *(p_y2)++;                     \
00120     *(p_line1)++ =            *(p_line2)++ = *(p_u)++;                      \
00121 
00122 #define C_YUV420_UYVY( )                                                    \
00123     *(p_line1)++ =            *(p_line2)++ = *(p_u)++;                      \
00124     *(p_line1)++ = *(p_y1)++; *(p_line2)++ = *(p_y2)++;                     \
00125     *(p_line1)++ =            *(p_line2)++ = *(p_v)++;                      \
00126     *(p_line1)++ = *(p_y1)++; *(p_line2)++ = *(p_y2)++;                     \
00127 
00128 #define C_YUV420_Y211( )                                                    \
00129     *(p_line1)++ = *(p_y1); p_y1 += 2;                                      \
00130     *(p_line2)++ = *(p_y2); p_y2 += 2;                                      \
00131     *(p_line1)++ = *(p_line2)++ = *(p_u) - 0x80; p_u += 2;                  \
00132     *(p_line1)++ = *(p_y1); p_y1 += 2;                                      \
00133     *(p_line2)++ = *(p_y2); p_y2 += 2;                                      \
00134     *(p_line1)++ = *(p_line2)++ = *(p_v) - 0x80; p_v += 2;                  \
00135 
00136 #endif
00137 
00138 /* Used in both MMX and C modules */
00139 #define C_YUV420_YUYV( )                                                    \
00140     *(p_line1)++ = *(p_y1)++; *(p_line2)++ = *(p_y2)++;                     \
00141     *(p_line1)++ =            *(p_line2)++ = *(p_u)++;                      \
00142     *(p_line1)++ = *(p_y1)++; *(p_line2)++ = *(p_y2)++;                     \
00143     *(p_line1)++ =            *(p_line2)++ = *(p_v)++;                      \
00144