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| author | Loren Merritt <lorenm@u.washington.edu> | 2008-02-21 07:10:46 +0000 |
|---|---|---|
| committer | Loren Merritt <lorenm@u.washington.edu> | 2008-02-21 07:10:46 +0000 |
| commit | 4a9ca0a279375e8dae774deef0c22b437935db20 (patch) | |
| tree | 051ff058e0135aeacb61f6e7321d15a0ff3cfa7a /libavcodec/dsputil.h | |
| parent | 1435e4ccdeb913e5d32ce814617c18379a3d1ecc (diff) | |
simd and unroll png_filter_row
cycles per 1000 pixels on core2:
left: 9211->5170
top: 9283->2138
avg: 12215->7611
paeth: 64024->17360
overall rgb png decoding speed: +45%
overall greyscale png decoding speed: +6%
Originally committed as revision 12164 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/dsputil.h')
| -rw-r--r-- | libavcodec/dsputil.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/dsputil.h b/libavcodec/dsputil.h index 2b9f7b48fd..8160a0dd5a 100644 --- a/libavcodec/dsputil.h +++ b/libavcodec/dsputil.h @@ -304,12 +304,15 @@ typedef struct DSPContext { /* huffyuv specific */ void (*add_bytes)(uint8_t *dst/*align 16*/, uint8_t *src/*align 16*/, int w); + void (*add_bytes_l2)(uint8_t *dst/*align 16*/, uint8_t *src1/*align 16*/, uint8_t *src2/*align 16*/, int w); void (*diff_bytes)(uint8_t *dst/*align 16*/, uint8_t *src1/*align 16*/, uint8_t *src2/*align 1*/,int w); /** * subtract huffyuv's variant of median prediction * note, this might read from src1[-1], src2[-1] */ void (*sub_hfyu_median_prediction)(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w, int *left, int *left_top); + /* this might write to dst[w] */ + void (*add_png_paeth_prediction)(uint8_t *dst, uint8_t *src, uint8_t *top, int w, int bpp); void (*bswap_buf)(uint32_t *dst, const uint32_t *src, int w); void (*h264_v_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0); |