Author: Carlos Lopez <[email protected]>
Date: Wed Oct 24 20:51:44 2012 +0200
ETL:: gaussian_: when storing the gaussian result convert it to the value_type.
It would force to clamp before store on the surface for limited range
value_types (like unsigned char)
---
ETL/ETL/_gaussian.h | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/ETL/ETL/_gaussian.h b/ETL/ETL/_gaussian.h
index 020eafe..dd38123 100644
--- a/ETL/ETL/_gaussian.h
+++ b/ETL/ETL/_gaussian.h
@@ -91,7 +91,7 @@ typename T::accumulator_pointer SC3)
Tmp2=SC2[x]+Tmp1;
SC2[x]=Tmp1;
if(y>1&&x>1)
- pen[-2][-2]=(SC3[x]+Tmp2)/256;
+ pen[-2][-2]=(typename
T::value_type)((SC3[x]+Tmp2)/256);
SC3[x]=Tmp2;
}
pen.dec_x(x);
@@ -171,7 +171,7 @@ gaussian_blur_3x3(T pen,int w, int h)
Tmp2=SC0[x]+Tmp1;
SC0[x]=Tmp1;
if(y&&x)
- pen[-1][-1]=(SC1[x]+Tmp2)/16;
+ pen[-1][-1]=(typename
T::value_type)((SC1[x]+Tmp2)/16);
SC1[x]=Tmp2;
}
pen.dec_x(x);
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