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| author | Mike Melanson <mike@multimedia.cx> | 2002-09-13 03:05:19 +0000 |
|---|---|---|
| committer | Mike Melanson <mike@multimedia.cx> | 2002-09-13 03:05:19 +0000 |
| commit | 1e4d8c9ad711c66fd8fa105fed9b1e4da05de009 (patch) | |
| tree | 2532f7c487d8779dd597bcf4db92cc0bbf0f1009 /src | |
| parent | 20b46c0027d3a0d64276a408a54e1c7cb8aef4ae (diff) | |
| download | xine-lib-1e4d8c9ad711c66fd8fa105fed9b1e4da05de009.tar.gz xine-lib-1e4d8c9ad711c66fd8fa105fed9b1e4da05de009.tar.bz2 | |
simplify MMX shift instruction
CVS patchset: 2658
CVS date: 2002/09/13 03:05:19
Diffstat (limited to 'src')
| -rw-r--r-- | src/xine-utils/color.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/src/xine-utils/color.c b/src/xine-utils/color.c index d9d1d74cb..de0066387 100644 --- a/src/xine-utils/color.c +++ b/src/xine-utils/color.c @@ -61,7 +61,7 @@ * instructions), these macros will automatically map to those special * instructions. * - * $Id: color.c,v 1.7 2002/09/12 01:25:28 tmmm Exp $ + * $Id: color.c,v 1.8 2002/09/13 03:05:19 tmmm Exp $ */ #include "xine_internal.h" @@ -308,12 +308,14 @@ void yuv444_to_yuy2_mmx(yuv_planes_t *yuv_planes, unsigned char *yuy2_map, 0x03, 0x00, 0x01, 0x00 }; + unsigned char shifter[] = {0, 0, 0, 0, 0, 0, 0, 0}; int block_loops = yuv_planes->row_width / 6; int filter_loops; int residual_filter_loops; int row_inc = (pitch - 2 * yuv_planes->row_width); residual_filter_loops = (yuv_planes->row_width % 6) / 2; + shifter[0] = residual_filter_loops * 8; if (!residual_filter_loops) residual_filter_loops = 3; @@ -380,10 +382,7 @@ void yuv444_to_yuy2_mmx(yuv_planes_t *yuv_planes, unsigned char *yuy2_map, source_plane -= (8 - residual_filter_loops * 2); movq_m2r(*source_plane, mm1); /* load 8 C samples */ source_plane += 8; - if (residual_filter_loops == 1) - psrlq_i2r(32, mm1); /* toss out 4 samples before starting */ - else if (residual_filter_loops == 2) - psrlq_i2r(16, mm1); /* toss out 2 samples before starting */ + psrlq_m2r(*shifter, mm1); /* toss out samples before starting */ } else { /* normal case */ |