Author: Carlos Lopez <genet...@gmail.com>
Date: Tue Apr 16 19:57:44 2013 +0200
CairoColor: add specialization for Blend mode STRAIGHT ONTO
---
synfig-core/src/synfig/color.cpp | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/synfig-core/src/synfig/color.cpp b/synfig-core/src/synfig/color.cpp
index d99b5b1..24ca765 100644
--- a/synfig-core/src/synfig/color.cpp
+++ b/synfig-core/src/synfig/color.cpp
@@ -412,6 +412,14 @@ blendfunc_STRAIGHT_ONTO(C &a,C &b,float amount)
return blendfunc_STRAIGHT(a,b,amount);
}
+template <>
+CairoColor
+blendfunc_STRAIGHT_ONTO(CairoColor &a, CairoColor &b, float amount)
+{
+ a.set_a(a.get_a()*b.get_a()/255.0);
+ return CairoColor::blend(a, b, amount, Color::BLEND_STRAIGHT);
+}
+
template <class C>
static C
blendfunc_BRIGHTEN(C &a,C &b,float amount)
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