X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fblend.cpp;h=3327885c74c1ef34b7a5c1d111f22935a8639de0;hp=df4043e29fcfc228a557a7a5f54238d1f302f5e2;hb=94ee5852b42b05559069596e205dc2f000e6153f;hpb=e69287d99126a20326d713c9a44360f15c94d137

diff --git a/source/blend.cpp b/source/blend.cpp
index df4043e2..3327885c 100644
--- a/source/blend.cpp
+++ b/source/blend.cpp
@@ -1,7 +1,10 @@
 #include <msp/gl/extensions/ext_blend_minmax.h>
 #include <msp/gl/extensions/ext_blend_subtract.h>
+#include <msp/strings/format.h>
 #include "blend.h"
 
+using namespace std;
+
 namespace Msp {
 namespace GL {
 
@@ -63,5 +66,62 @@ const Blend &Blend::additive_alpha()
 	return blend;
 }
 
+void operator>>(const LexicalConverter &conv, BlendFactor &factor)
+{
+	const string &str = conv.get();
+	if(str=="ZERO")
+		factor = ZERO;
+	else if(str=="ONE")
+		factor = ONE;
+	else if(str=="SRC_COLOR")
+		factor = SRC_COLOR;
+	else if(str=="ONE_MINUS_SRC_COLOR")
+		factor = ONE_MINUS_SRC_COLOR;
+	else if(str=="SRC_ALPHA")
+		factor = SRC_ALPHA;
+	else if(str=="ONE_MINUS_SRC_ALPHA")
+		factor = ONE_MINUS_SRC_ALPHA;
+	else if(str=="DST_COLOR")
+		factor = DST_COLOR;
+	else if(str=="ONE_MINUS_DST_COLOR")
+		factor = ONE_MINUS_DST_COLOR;
+	else if(str=="DST_ALPHA")
+		factor = DST_ALPHA;
+	else if(str=="ONE_MINUS_DST_ALPHA")
+		factor = ONE_MINUS_DST_ALPHA;
+	else if(str=="CONSTANT_COLOR")
+		factor = CONSTANT_COLOR;
+	else if(str=="ONE_MINUS_CONSTANT_COLOR")
+		factor = ONE_MINUS_CONSTANT_COLOR;
+	else if(str=="CONSTANT_ALPHA")
+		factor = CONSTANT_ALPHA;
+	else if(str=="ONE_MINUS_CONSTANT_ALPHA")
+		factor = ONE_MINUS_CONSTANT_ALPHA;
+	else
+		throw lexical_error(format("conversion of '%s' to BlendFactor", str));
+}
+
+void operator<<(LexicalConverter &conv, BlendFactor factor)
+{
+	switch(factor)
+	{
+	case ZERO: conv.result("ZERO"); break;
+	case ONE: conv.result("ONE"); break;
+	case SRC_COLOR: conv.result("SRC_COLOR"); break;
+	case ONE_MINUS_SRC_COLOR: conv.result("ONE_MINUS_SRC_COLOR"); break;
+	case SRC_ALPHA: conv.result("SRC_ALPHA"); break;
+	case ONE_MINUS_SRC_ALPHA: conv.result("ONE_MINUS_SRC_ALPHA"); break;
+	case DST_COLOR: conv.result("DST_COLOR"); break;
+	case ONE_MINUS_DST_COLOR: conv.result("ONE_MINUS_DST_COLOR"); break;
+	case DST_ALPHA: conv.result("DST_ALPHA"); break;
+	case ONE_MINUS_DST_ALPHA: conv.result("ONE_MINUS_DST_ALPHA"); break;
+	case CONSTANT_COLOR: conv.result("CONSTANT_COLOR"); break;
+	case ONE_MINUS_CONSTANT_COLOR: conv.result("ONE_MINUS_CONSTANT_COLOR"); break;
+	case CONSTANT_ALPHA: conv.result("CONSTANT_ALPHA"); break;
+	case ONE_MINUS_CONSTANT_ALPHA: conv.result("ONE_MINUS_CONSTANT_ALPHA"); break;
+	default: conv.result(format("BlendFactor(%#x)", static_cast<int>(factor)));
+	}
+}
+
 } // namespace GL
 } // namespace Msp