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  1. 21 Dec, 2015 1 commit
  3. 17 Dec, 2015 1 commit
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  17. 26 Nov, 2015 1 commit
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  31. 02 Nov, 2015 1 commit
  33. 27 Oct, 2015 1 commit
  35. 26 Oct, 2015 1 commit
  37. 22 Oct, 2015 1 commit
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  41. 19 Oct, 2015 1 commit
  43. 17 Oct, 2015 1 commit
  45. 16 Oct, 2015 1 commit
  47. 15 Oct, 2015 1 commit
  49. 14 Oct, 2015 2 commits
  51. 13 Oct, 2015 1 commit
  53. 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
  55. 02 Oct, 2015 1 commit
  57. 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
  59. 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
  61. 18 Sep, 2015 1 commit
  63. 17 Sep, 2015 1 commit
  65. 06 Sep, 2015 1 commit
  67. 03 Sep, 2015 1 commit
  69. 21 Aug, 2015 1 commit