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  1. 16 Oct, 2015 1 commit
  3. 13 Oct, 2015 1 commit
  5. 07 Oct, 2015 2 commits
    • Frank Barchard's avatar
      Reimplement NV21ToARGB to allow different color matrix. · 914a9856
      Frank Barchard authored 
      Low level for NV21ToARGB written to accept yuv matrix used by
other YUV to ARGB functions.
Previously NV21 was implemented for Windows using NV12 with a different
matrix that swapped U and V.  But the Arm version of the low level does
not allow the matrix U and V contributions to be swapped.
Using a new low level function that reads NV21 and uses the same
yuvconstants as other YUV conversion functions allows an Arm port of
this function.

TBR=harryjin@google.com
BUG=libyuv:500

Review URL: https://codereview.chromium.org/1388273002 .
      914a9856
    • Frank Barchard's avatar
      Add J444ToARGB conversion function. · f00bc9ef
      Frank Barchard authored 
      J444 is JPeg YUV color space with 444 subsampling.
This implementation uses the existing I444ToARGB conversion, which is
BT.601 color space with 444 subsampling, but passing in the jpeg
color matrix constants.

TBR=harryjin@google.com
BUG=449

Review URL: https://codereview.chromium.org/1387313002 .
      f00bc9ef
  7. 25 Sep, 2015 1 commit
    • Frank Barchard's avatar
      I420Alpha row function in 1 pass. · e365cdde
      Frank Barchard authored 
      API change - I420AlphaToARGB takes flag indicating if RGB should be
premultiplied by alpha.

This version implements an efficient SSSE3 version for Windows.
C version done in 2 steps.

Was
libyuvTest.I420AlphaToARGB_Any (1136 ms)
libyuvTest.I420AlphaToARGB_Unaligned (1210 ms)
libyuvTest.I420AlphaToARGB_Invert (966 ms)
libyuvTest.I420AlphaToARGB_Opt (1031 ms)
libyuvTest.I420AlphaToABGR_Any (1020 ms)
libyuvTest.I420AlphaToABGR_Unaligned (1359 ms)
libyuvTest.I420AlphaToABGR_Invert (1082 ms)
libyuvTest.I420AlphaToABGR_Opt (986 ms)

R=harryjin@google.com
BUG=libyuv:496

Review URL: https://codereview.chromium.org/1367093002 .
      e365cdde
  9. 22 Sep, 2015 1 commit
    • Frank Barchard's avatar
      Replace random with fastrand · 16f12b58
      Frank Barchard authored 
      random / rand is slow and impacts performance testing.
Although its only called to clear a frame once, a typical profile shows
it high in the overall profile, when doing 1000 frames for a benchmark.

95.10%  libyuv_unittest  libyuv_unittest      [.] YUY2ToARGBRow_SSSE3
 2.01%  libyuv_unittest  libc-2.19.so         [.] __random_r
 1.13%  libyuv_unittest  libc-2.19.so         [.] __random

Replace random is a faster version for unittests.

set LIBYUV_WIDTH=1280
set LIBYUV_HEIGHT=720
set LIBYUV_REPEAT=999
set LIBYUV_FLAGS=-1
out\release\libyuv_unittest --gtest_filter=*YUY2ToARGB*  | findms

Was
libyuvTest.YUY2ToARGB_Opt (497 ms)

Now
libyuvTest.YUY2ToARGB_Opt (454 ms)

R=harryjin@google.com
BUG=none

Review URL: https://codereview.chromium.org/1361813002 .
      16f12b58
  11. 18 Sep, 2015 1 commit
  13. 06 Sep, 2015 1 commit
  15. 03 Sep, 2015 1 commit
  17. 21 Aug, 2015 1 commit
  19. 18 Aug, 2015 1 commit
    • Frank Barchard's avatar
      xmmword cast for clang · cda9d38a
      Frank Barchard authored 
      clangcl use compare_win for 32 bit, allowing fallback and enabling avx2 code for clang.
move defines/protos to compare_row.h
fix issue with odd width ARGBCopyAlpha functions by copying destination to temp buffer, then doing alpha copy, then copy back to destination.

R=harryjin@google.com
TBR=harryjin@google.com
BUG=libyuv:484

Review URL: https://webrtc-codereview.appspot.com/59379004.
      cda9d38a
  21. 13 Aug, 2015 1 commit
  23. 30 Jul, 2015 1 commit
  25. 21 Jul, 2015 1 commit
  27. 17 Jul, 2015 2 commits
  29. 09 Jun, 2015 1 commit
    • fbarchard@google.com's avatar
      Box filter for YUV use rows with accumulation buffer for better memory behavior.… · 05416e2d
      fbarchard@google.com authored 
      Box filter for YUV use rows with accumulation buffer for better memory behavior.  The old code would do columns accumulated into registers, and then store the result once.  This was slow from a memory point of view.  The new code does a row of source at a time, updating an accumulation buffer every row.  The accumulation buffer is small, and should fit cache.  Before each accumulation of N rows, the buffer needs to be reset to zero.  If the memset is a bottleneck, it would be faster to do the first row without an add, storing to the accumulation buffer, and then add for the remaining rows.
BUG=425
TESTED=out\release\libyuv_unittest --gtest_filter=*ScaleTo1x1*
R=harryjin@google.com

Review URL: https://webrtc-codereview.appspot.com/52659004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1428 16f28f9a-4ce2-e073-06de-1de4eb20be90
      05416e2d
  31. 26 Mar, 2015 1 commit
  33. 19 Mar, 2015 1 commit
  35. 17 Mar, 2015 1 commit
  37. 10 Mar, 2015 1 commit
  39. 06 Mar, 2015 2 commits
  41. 04 Mar, 2015 1 commit
  43. 27 Feb, 2015 1 commit
  45. 18 Feb, 2015 1 commit
  47. 17 Feb, 2015 1 commit
  49. 10 Feb, 2015 1 commit
  51. 09 Feb, 2015 1 commit
  53. 04 Feb, 2015 1 commit
  55. 03 Feb, 2015 1 commit
  57. 02 Feb, 2015 2 commits
  59. 14 Jan, 2015 1 commit
  61. 13 Jan, 2015 3 commits
  63. 29 Dec, 2014 1 commit
  65. 15 Dec, 2014 2 commits