diff options
Diffstat (limited to 'libavcodec/x86/lossless_videoencdsp.asm')
| -rw-r--r-- | libavcodec/x86/lossless_videoencdsp.asm | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/libavcodec/x86/lossless_videoencdsp.asm b/libavcodec/x86/lossless_videoencdsp.asm index 4d79eee36b..fb1204f0f1 100644 --- a/libavcodec/x86/lossless_videoencdsp.asm +++ b/libavcodec/x86/lossless_videoencdsp.asm @@ -25,6 +25,8 @@ %include "libavutil/x86/x86util.asm" +cextern pb_80 + SECTION .text ; void ff_diff_bytes(uint8_t *dst, const uint8_t *src1, const uint8_t *src2, @@ -149,3 +151,44 @@ DIFF_BYTES_PROLOGUE DIFF_BYTES_BODY u, u %undef i %endif + + +;-------------------------------------------------------------------------------------------------- +;void sub_left_predict(uint8_t *dst, uint8_t *src, ptrdiff_t stride, ptrdiff_t width, int height) +;-------------------------------------------------------------------------------------------------- + +INIT_XMM avx +cglobal sub_left_predict, 5,6,5, dst, src, stride, width, height, x + mova m1, [pb_80] ; prev initial + add dstq, widthq + add srcq, widthq + lea xd, [widthq-1] + neg widthq + and xd, 15 + pinsrb m4, m1, xd, 15 + mov xq, widthq + + .loop: + movu m0, [srcq + widthq] + palignr m2, m0, m1, 15 + movu m1, [srcq + widthq + 16] + palignr m3, m1, m0, 15 + psubb m2, m0, m2 + psubb m3, m1, m3 + movu [dstq + widthq], m2 + movu [dstq + widthq + 16], m3 + add widthq, 2 * 16 + jl .loop + + add srcq, strideq + sub dstq, xq ; dst + width + test xd, 16 + jz .mod32 + mova m1, m0 + +.mod32: + pshufb m1, m4 + mov widthq, xq + dec heightd + jg .loop + RET |