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| author | Jason Garrett-Glaser <darkshikari@gmail.com> | 2010-08-02 20:18:09 +0000 |
|---|---|---|
| committer | Jason Garrett-Glaser <darkshikari@gmail.com> | 2010-08-02 20:18:09 +0000 |
| commit | 827d43bb9d439254eff5fa44b9809d263fbdc3cf (patch) | |
| tree | 09174c0b8f38461476b8e02bcc16cbd95ee43107 /libavcodec/x86/vp8dsp.asm | |
| parent | 42907c6ab5e41ca29db3454851e15bb0bce3601d (diff) | |
| download | ffmpeg-827d43bb9d439254eff5fa44b9809d263fbdc3cf.tar.gz | |
VP8: move zeroing of luma DC block into the WHT
Lets us do the zeroing in asm instead of C.
Also makes it consistent with the way the regular iDCT code does it.
Originally committed as revision 24668 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/x86/vp8dsp.asm')
| -rw-r--r-- | libavcodec/x86/vp8dsp.asm | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/libavcodec/x86/vp8dsp.asm b/libavcodec/x86/vp8dsp.asm index 4f430d80c8..6999e87b63 100644 --- a/libavcodec/x86/vp8dsp.asm +++ b/libavcodec/x86/vp8dsp.asm @@ -1186,12 +1186,23 @@ VP8_IDCT_ADD sse SWAP %1, %4, %3 %endmacro -INIT_MMX -cglobal vp8_luma_dc_wht_mmx, 2,3 +%macro VP8_DC_WHT 1 +cglobal vp8_luma_dc_wht_%1, 2,3 movq m0, [r1] movq m1, [r1+8] movq m2, [r1+16] movq m3, [r1+24] +%ifidn %1, sse + xorps xmm0, xmm0 + movaps [r1+ 0], xmm0 + movaps [r1+16], xmm0 +%else + pxor m4, m4 + movq [r1+ 0], m4 + movq [r1+ 8], m4 + movq [r1+16], m4 + movq [r1+24], m4 +%endif HADAMARD4_1D 0, 1, 2, 3 TRANSPOSE4x4W 0, 1, 2, 3, 4 paddw m0, [pw_3] @@ -1203,6 +1214,11 @@ cglobal vp8_luma_dc_wht_mmx, 2,3 SCATTER_WHT 0, 1, 0 SCATTER_WHT 2, 3, 2 RET +%endmacro + +INIT_MMX +VP8_DC_WHT mmx +VP8_DC_WHT sse ;----------------------------------------------------------------------------- ; void vp8_h/v_loop_filter_simple_<opt>(uint8_t *dst, int stride, int flim); |