Author: Carlos Lopez <[email protected]>
Date: Tue Nov 20 22:03:24 2012 +0100
Cairo Operators: complete the OVERLAY method using properly the right context
pixels when blending the source pattern with the context. Now it renders fine.
---
synfig-core/src/synfig/cairo_operators.cpp | 13 +++++++++++--
1 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/synfig-core/src/synfig/cairo_operators.cpp
b/synfig-core/src/synfig/cairo_operators.cpp
index 855cef1..667da2d 100644
--- a/synfig-core/src/synfig/cairo_operators.cpp
+++ b/synfig-core/src/synfig/cairo_operators.cpp
@@ -199,13 +199,22 @@ void cairo_paint_with_alpha_operator(cairo_t* acr, float
alpha, Color::BlendMeth
assert(cdest.map_cairo_image());
assert(csource.map_cairo_image());
+ double x1, y1, x2, y2, x0, y0;
+ cairo_clip_extents(cr, &x1, &y1, &x2, &y2);
+ cairo_user_to_device(cr, &x1, &y1);
+ cairo_user_to_device(cr, &x2, &y2);
+ x0=x2<x1?x2:x1;
+ y0=y2<y1?y2:y1;
+
int w=csource.get_w();
int h=csource.get_h();
-
+ int h0=(int)y0;
+ int w0=(int)x0;
+
for(int y=0;y<h;y++)
for(int x=0;x<w;x++)
{
-
csource[y][x]=CairoColor::blend(csource[y][x], cdest[y][x], alpha, method);
+
csource[y][x]=CairoColor::blend(csource[y][x], cdest[h0+y][w0+x], alpha,
method);
}
csource.unmap_cairo_image();
cdest.unmap_cairo_image();
------------------------------------------------------------------------------
Monitor your physical, virtual and cloud infrastructure from a single
web console. Get in-depth insight into apps, servers, databases, vmware,
SAP, cloud infrastructure, etc. Download 30-day Free Trial.
Pricing starts from $795 for 25 servers or applications!
http://p.sf.net/sfu/zoho_dev2dev_nov
_______________________________________________
Synfig-devl mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/synfig-devl
