Author: Carlos Lopez <[email protected]>
Date: Tue Apr 16 20:36:33 2013 +0200
Fix blend method SUBTRACT for CairoColor.
---
synfig-core/src/synfig/color.cpp | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/synfig-core/src/synfig/color.cpp b/synfig-core/src/synfig/color.cpp
index ab3edba..7d330d1 100644
--- a/synfig-core/src/synfig/color.cpp
+++ b/synfig-core/src/synfig/color.cpp
@@ -620,11 +620,11 @@ blendfunc_SUBTRACT(CairoColor &a, CairoColor &b, float
amount)
bb=b.get_b();
ab=b.get_a();
- int aba=ab*amount;
+ const float aaa=aa*amount/255.0;
- rc=rb-(ra*aba)/255;
- gc=gb-(ga*aba)/255;
- bc=bb-(ba*aba)/255;
+ rc=rb-ra*aaa;
+ gc=gb-ga*aaa;
+ bc=bb-ba*aaa;
ac=ab;
return CairoColor(rc, gc, bc, ac);
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