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| author | Frank Barchard <fbarchard@google.com> | 2021-02-10 00:22:41 -0800 |
|---|---|---|
| committer | Frank Barchard <fbarchard@chromium.org> | 2021-02-10 18:51:02 +0000 |
| commit | 12a4a2372cf8530de0bb1e8f00c176d31d7da0b6 (patch) | |
| tree | 2a899d0dd65491cc1c59698295a88c6e9eff1de0 /source/scale_common.cc | |
| parent | 742791f13a8ca9e8a297c323699aff8af30a360b (diff) | |
| download | libyuv-12a4a2372cf8530de0bb1e8f00c176d31d7da0b6.tar.gz | |
Rounding added to scaling upsampler
Bug: libyuv:872, b/178521093
Change-Id: I86749f73f5e55d5fd8b87ea6938084cbacb1cda7
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/2686945
Reviewed-by: Wan-Teh Chang <wtc@google.com>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
Diffstat (limited to 'source/scale_common.cc')
| -rw-r--r-- | source/scale_common.cc | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/source/scale_common.cc b/source/scale_common.cc index 4af84321..f4f23397 100644 --- a/source/scale_common.cc +++ b/source/scale_common.cc @@ -1232,21 +1232,29 @@ void ScaleUVRowUp2_Bilinear_C(const uint8_t* src_ptr, assert((dst_width % 2 == 0) && (dst_width >= 0)); for (x = 0; x < src_width; ++x) { d[4 * x + 0] = (s[2 * x + 0] * 9 + s[2 * x + 2] * 3 + t[2 * x + 0] * 3 + - t[2 * x + 2] * 1 + 8) >> 4; + t[2 * x + 2] * 1 + 8) >> + 4; d[4 * x + 1] = (s[2 * x + 1] * 9 + s[2 * x + 3] * 3 + t[2 * x + 1] * 3 + - t[2 * x + 3] * 1 + 8) >> 4; + t[2 * x + 3] * 1 + 8) >> + 4; d[4 * x + 2] = (s[2 * x + 0] * 3 + s[2 * x + 2] * 9 + t[2 * x + 0] * 1 + - t[2 * x + 2] * 3 + 8) >> 4; + t[2 * x + 2] * 3 + 8) >> + 4; d[4 * x + 3] = (s[2 * x + 1] * 3 + s[2 * x + 3] * 9 + t[2 * x + 1] * 1 + - t[2 * x + 3] * 3 + 8) >> 4; + t[2 * x + 3] * 3 + 8) >> + 4; e[4 * x + 0] = (s[2 * x + 0] * 3 + s[2 * x + 2] * 1 + t[2 * x + 0] * 9 + - t[2 * x + 2] * 3 + 8) >> 4; + t[2 * x + 2] * 3 + 8) >> + 4; e[4 * x + 1] = (s[2 * x + 1] * 3 + s[2 * x + 3] * 1 + t[2 * x + 1] * 9 + - t[2 * x + 3] * 3 + 8) >> 4; + t[2 * x + 3] * 3 + 8) >> + 4; e[4 * x + 2] = (s[2 * x + 0] * 1 + s[2 * x + 2] * 3 + t[2 * x + 0] * 3 + - t[2 * x + 2] * 9 + 8) >> 4; + t[2 * x + 2] * 9 + 8) >> + 4; e[4 * x + 3] = (s[2 * x + 1] * 1 + s[2 * x + 3] * 3 + t[2 * x + 1] * 3 + - t[2 * x + 3] * 9 + 8) >> 4; + t[2 * x + 3] * 9 + 8) >> + 4; } } |