i420_yuy2.h
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上传日期：2009-03-27
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- /*****************************************************************************
- * i420_yuy2.h : YUV to YUV conversion module for vlc
- *****************************************************************************
- * Copyright (C) 2000, 2001 VideoLAN
- * $Id: i420_yuy2.h 7590 2004-05-04 14:09:45Z titer $
- *
- * Authors: Samuel Hocevar <sam@zoy.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
- #ifdef MODULE_NAME_IS_i420_yuy2_mmx
- #define MMX_CALL(MMX_INSTRUCTIONS)
- do {
- __asm__ __volatile__(
- ".align 8 nt"
- MMX_INSTRUCTIONS
- :
- : "r" (p_line1), "r" (p_line2), "r" (p_y1), "r" (p_y2),
- "r" (p_u), "r" (p_v) );
- p_line1 += 16; p_line2 += 16; p_y1 += 8; p_y2 += 8; p_u += 4; p_v += 4;
- } while(0);
- #define MMX_YUV420_YUYV " n
- movq (%2), %%mm0 # Load 8 Y y7 y6 y5 y4 y3 y2 y1 y0 n
- movd (%4), %%mm1 # Load 4 Cb 00 00 00 00 u3 u2 u1 u0 n
- movd (%5), %%mm2 # Load 4 Cr 00 00 00 00 v3 v2 v1 v0 n
- punpcklbw %%mm2, %%mm1 # v3 u3 v2 u2 v1 u1 v0 u0 n
- movq %%mm0, %%mm2 # y7 y6 y5 y4 y3 y2 y1 y0 n
- punpcklbw %%mm1, %%mm2 # v1 y3 u1 y2 v0 y1 u0 y0 n
- movq %%mm2, (%0) # Store low YUYV n
- punpckhbw %%mm1, %%mm0 # v3 y7 u3 y6 v2 y5 u2 y4 n
- movq %%mm0, 8(%0) # Store high YUYV n
- movq (%3), %%mm0 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 n
- movq %%mm0, %%mm2 # Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 n
- punpcklbw %%mm1, %%mm2 # v1 Y3 u1 Y2 v0 Y1 u0 Y0 n
- movq %%mm2, (%1) # Store low YUYV n
- punpckhbw %%mm1, %%mm0 # v3 Y7 u3 Y6 v2 Y5 u2 Y4 n
- movq %%mm0, 8(%1) # Store high YUYV n
- "
- #define MMX_YUV420_YVYU " n
- movq (%2), %%mm0 # Load 8 Y y7 y6 y5 y4 y3 y2 y1 y0 n
- movd (%4), %%mm2 # Load 4 Cb 00 00 00 00 u3 u2 u1 u0 n
- movd (%5), %%mm1 # Load 4 Cr 00 00 00 00 v3 v2 v1 v0 n
- punpcklbw %%mm2, %%mm1 # u3 v3 u2 v2 u1 v1 u0 v0 n
- movq %%mm0, %%mm2 # y7 y6 y5 y4 y3 y2 y1 y0 n
- punpcklbw %%mm1, %%mm2 # u1 y3 v1 y2 u0 y1 v0 y0 n
- movq %%mm2, (%0) # Store low YUYV n
- punpckhbw %%mm1, %%mm0 # u3 y7 v3 y6 u2 y5 v2 y4 n
- movq %%mm0, 8(%0) # Store high YUYV n
- movq (%3), %%mm0 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 n
- movq %%mm0, %%mm2 # Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 n
- punpcklbw %%mm1, %%mm2 # u1 Y3 v1 Y2 u0 Y1 v0 Y0 n
- movq %%mm2, (%1) # Store low YUYV n
- punpckhbw %%mm1, %%mm0 # u3 Y7 v3 Y6 u2 Y5 v2 Y4 n
- movq %%mm0, 8(%1) # Store high YUYV n
- "
- #define MMX_YUV420_UYVY " n
- movq (%2), %%mm0 # Load 8 Y y7 y6 y5 y4 y3 y2 y1 y0 n
- movq (%3), %%mm3 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 n
- movd (%4), %%mm2 # Load 4 Cb 00 00 00 00 u3 u2 u1 u0 n
- movd (%5), %%mm1 # Load 4 Cr 00 00 00 00 v3 v2 v1 v0 n
- punpcklbw %%mm2, %%mm1 # u3 v3 u2 v2 u1 v1 u0 v0 n
- movq %%mm1, %%mm2 # u3 v3 u2 v2 u1 v1 u0 v0 n
- punpcklbw %%mm0, %%mm2 # y3 v1 y2 u1 y1 v0 y0 u0 n
- movq %%mm2, (%0) # Store low UYVY n
- movq %%mm1, %%mm2 # u3 v3 u2 v2 u1 v1 u0 v0 n
- punpckhbw %%mm0, %%mm2 # y3 v1 y2 u1 y1 v0 y0 u0 n
- movq %%mm2, 8(%0) # Store high UYVY n
- movq %%mm1, %%mm2 # u3 v3 u2 v2 u1 v1 u0 v0 n
- punpcklbw %%mm3, %%mm2 # Y3 v1 Y2 u1 Y1 v0 Y0 u0 n
- movq %%mm2, (%1) # Store low UYVY n
- punpckhbw %%mm3, %%mm1 # Y7 v3 Y6 u3 Y5 v2 Y4 u2 n
- movq %%mm1, 8(%1) # Store high UYVY n
- "
- /* FIXME: this code does not work ! Chroma seems to be wrong. */
- #define MMX_YUV420_Y211 " n
- movq (%2), %%mm0 # Load 8 Y y7 y6 y5 y4 y3 y2 y1 y0 n
- movq (%3), %%mm1 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 n
- movd (%4), %%mm2 # Load 4 Cb 00 00 00 00 u3 u2 u1 u0 n
- movd (%5), %%mm3 # Load 4 Cr 00 00 00 00 v3 v2 v1 v0 n
- pand i_00ffw, %%mm0 # get Y even 00 Y6 00 Y4 00 Y2 00 Y0 n
- packuswb %%mm0, %%mm0 # pack Y y6 y4 y2 y0 y6 y4 y2 y0 n
- pand i_00ffw, %%mm2 # get U even 00 u6 00 u4 00 u2 00 u0 n
- packuswb %%mm2, %%mm2 # pack U 00 00 u2 u0 00 00 u2 u0 n
- pand i_00ffw, %%mm3 # get V even 00 v6 00 v4 00 v2 00 v0 n
- packuswb %%mm3, %%mm3 # pack V 00 00 v2 v0 00 00 v2 v0 n
- punpcklbw %%mm3, %%mm2 # 00 00 00 00 v2 u2 v0 u0 n
- psubsw i_80w, %%mm2 # U,V -= 128 n
- punpcklbw %%mm2, %%mm0 # v2 y6 u2 y4 v0 y2 u0 y0 n
- movq %%mm0, (%0) # Store YUYV n
- pand i_00ffw, %%mm1 # get Y even 00 Y6 00 Y4 00 Y2 00 Y0 n
- packuswb %%mm1, %%mm1 # pack Y Y6 Y4 Y2 Y0 Y6 Y4 Y2 Y0 n
- punpcklbw %%mm2, %%mm1 # v2 Y6 u2 Y4 v0 Y2 u0 Y0 n
- movq %%mm1, (%1) # Store YUYV n
- "
- #else
- #define C_YUV420_YVYU( )
- *(p_line1)++ = *(p_y1)++; *(p_line2)++ = *(p_y2)++;
- *(p_line1)++ = *(p_line2)++ = *(p_v)++;
- *(p_line1)++ = *(p_y1)++; *(p_line2)++ = *(p_y2)++;
- *(p_line1)++ = *(p_line2)++ = *(p_u)++;
- #define C_YUV420_UYVY( )
- *(p_line1)++ = *(p_line2)++ = *(p_u)++;
- *(p_line1)++ = *(p_y1)++; *(p_line2)++ = *(p_y2)++;
- *(p_line1)++ = *(p_line2)++ = *(p_v)++;
- *(p_line1)++ = *(p_y1)++; *(p_line2)++ = *(p_y2)++;
- #define C_YUV420_Y211( )
- *(p_line1)++ = *(p_y1); p_y1 += 2;
- *(p_line2)++ = *(p_y2); p_y2 += 2;
- *(p_line1)++ = *(p_line2)++ = *(p_u) - 0x80; p_u += 2;
- *(p_line1)++ = *(p_y1); p_y1 += 2;
- *(p_line2)++ = *(p_y2); p_y2 += 2;
- *(p_line1)++ = *(p_line2)++ = *(p_v) - 0x80; p_v += 2;
- #endif
- /* Used in both MMX and C modules */
- #define C_YUV420_YUYV( )
- *(p_line1)++ = *(p_y1)++; *(p_line2)++ = *(p_y2)++;
- *(p_line1)++ = *(p_line2)++ = *(p_u)++;
- *(p_line1)++ = *(p_y1)++; *(p_line2)++ = *(p_y2)++;
- *(p_line1)++ = *(p_line2)++ = *(p_v)++;
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