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-rw-r--r--Plugins/merge_additive.cpp30
1 files changed, 30 insertions, 0 deletions
diff --git a/Plugins/merge_additive.cpp b/Plugins/merge_additive.cpp
new file mode 100644
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--- /dev/null
+++ b/Plugins/merge_additive.cpp
@@ -0,0 +1,30 @@
+//
+// merge_additive - add color components of two images, until white
+//
+
+#include "plugin.h"
+#include "pixels.h"
+
+INFO("add color components of two images until white");
+
+void perform_copy(_frame f1, _frame f2, _args a)
+{
+ pixels p1(f1), p2(f2);
+ int r, g, b;
+
+ while(!p1.eof() && !p2.eof())
+ {
+ r = (p1.red() + p2.red());
+ g = (p1.green() + p2.green());
+ b = (p1.blue() + p2.blue());
+
+ r = r<256 ? r : 255;
+ g = g<256 ? g : 255;
+ b = b<256 ? b : 255;
+
+ p2.putrgb(r, g, b);
+
+ p1.next();
+ p2.next();
+ }
+}