Lei Zhang : qcap: Don' t clip intermediate values in YUV to RGB conversion code.
Alexandre Julliard
julliard at winehq.org
Thu Dec 11 07:50:40 CST 2008
Module: wine
Branch: master
Commit: 0537a122c752886f6e87f2e372570ff2d041b0b7
URL: http://source.winehq.org/git/wine.git/?a=commit;h=0537a122c752886f6e87f2e372570ff2d041b0b7
Author: Lei Zhang <thestig at google.com>
Date: Tue Dec 9 16:35:32 2008 -0800
qcap: Don't clip intermediate values in YUV to RGB conversion code.
---
dlls/qcap/yuv.c | 10 +++++-----
1 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/dlls/qcap/yuv.c b/dlls/qcap/yuv.c
index 358a711..5896ee5 100644
--- a/dlls/qcap/yuv.c
+++ b/dlls/qcap/yuv.c
@@ -68,21 +68,21 @@ void YUV_Init(void) {
for (y_ = 0; y_ <= 255; y_++)
{
y = ((float) 255 / 219) * (y_ - 16);
- yuv_xy[y_] = ValidRange((int) (y));
+ yuv_xy[y_] = y;
}
for (cb = 0; cb <= 255; cb++)
{
u = ((float) 255 / 224) * (cb - 128);
- yuv_gu[cb] = - ValidRange((int) (0.344 * u));
- yuv_bu[cb] = ValidRange((int) (1.772 * u));
+ yuv_gu[cb] = -0.344 * u;
+ yuv_bu[cb] = 1.772 * u;
}
for (cr = 0; cr <= 255; cr++)
{
v = ((float) 255 / 224) * (cr - 128);
- yuv_rv[cr] = ValidRange((int) (1.402 * v));
- yuv_gv[cr] = - ValidRange((int) (0.714 * v));
+ yuv_rv[cr] = 1.402 * v;
+ yuv_gv[cr] = -0.714 * v;
}
TRACE("Filled hash table\n");
}
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