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Fix ARM YuvConstants value

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R=fbarchard@chromium.org

Bug: libyuv:901
Change-Id: Ie2f9ac214a2a7462cc613f510b64308d3b861b74
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/2856225
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
This commit is contained in:
Yuan Tong 2021-04-28 13:50:18 +08:00 committed by Frank Barchard
parent eb6e7bb637
commit 99cddd8051
1 changed files with 9 additions and 12 deletions
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21
source/row_common.cc
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@ -1422,17 +1422,14 @@ void J400ToARGBRow_C(const uint8_t* src_y, uint8_t* dst_argb, int width) {
// clang-format off
#if defined(__aarch64__) || defined(__arm__)
// Bias values to round, and subtract 128 from U and V.
// For B and R this is negative. For G this is positive.
#define BB (UB * 128 - YB)
#define BG (UG * 128 + VG * 128 + YB)
#define BR (VR * 128 - YB)
#define YUBCONSTANTSBODY(YG, YB, UB, UG, VG, VR) \
{{UB, VR, UG, VG, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, \
{YG, BB, BG, BR, YB, 0, 0, 0}}
// Bias values include subtract 128 from U and V, bias from Y and rounding.
// For B and R bias is negative. For G bias is positive.
#define YUVCONSTANTSBODY(YG, YB, UB, UG, VG, VR) \
{{UB, VR, UG, VG, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, \
{YG, (UB * 128 - YB), (UG * 128 + VG * 128 + YB), (VR * 128 - YB), YB, 0, \
0, 0}}
#else
#define YUBCONSTANTSBODY(YG, YB, UB, UG, VG, VR) \
#define YUVCONSTANTSBODY(YG, YB, UB, UG, VG, VR) \
{{UB, 0, UB, 0, UB, 0, UB, 0, UB, 0, UB, 0, UB, 0, UB, 0, \
UB, 0, UB, 0, UB, 0, UB, 0, UB, 0, UB, 0, UB, 0, UB, 0}, \
{UG, VG, UG, VG, UG, VG, UG, VG, UG, VG, UG, VG, UG, VG, UG, VG, \
@ -1447,9 +1444,9 @@ void J400ToARGBRow_C(const uint8_t* src_y, uint8_t* dst_argb, int width) {
#define MAKEYUVCONSTANTS(name, YG, YB, UB, UG, VG, VR) \
const struct YuvConstants SIMD_ALIGNED(kYuv##name##Constants) = \
YUBCONSTANTSBODY(YG, YB, UB, UG, VG, VR); \
YUVCONSTANTSBODY(YG, YB, UB, UG, VG, VR); \
const struct YuvConstants SIMD_ALIGNED(kYvu##name##Constants) = \
YUBCONSTANTSBODY(YG, YB, VR, VG, UG, UB);
YUVCONSTANTSBODY(YG, YB, VR, VG, UG, UB);
// TODO(fbarchard): Generate SIMD structures from float matrix.