Move all OpenGL-specific code to a separate directory

[libs/gl.git] / source / core / blend.h

diff --git a/source/core/blend.h b/source/core/blend.h
index 986844c0e6a7e1f2caa15249a8c7d8531bd4bf09..e04aef49c2474cc7be4c49382044518331a6c9a2 100644 (file)
--- a/source/core/blend.h
+++ b/source/core/blend.h
@@ -4,7 +4,6 @@
 #include <msp/datafile/objectloader.h>
 #include <msp/strings/lexicalcast.h>
 #include "color.h"
-#include "gl.h"
 
 namespace Msp {
 namespace GL {
@@ -36,6 +35,16 @@ enum BlendFactor
        ONE_MINUS_CONSTANT_ALPHA
 };
 
+enum ColorWriteMask
+{
+       WRITE_NONE = 0,
+       WRITE_RED = 1,
+       WRITE_GREEN = 2,
+       WRITE_BLUE = 4,
+       WRITE_ALPHA = 8,
+       WRITE_ALL = 15
+};
+
 /**
 Blends incoming fragments with those already in the framebuffer.
 */
@@ -57,14 +66,16 @@ struct Blend
        BlendFactor src_factor;
        BlendFactor dst_factor;
        Color constant;
+       ColorWriteMask write_mask;
 
        Blend();
        Blend(BlendFactor, BlendFactor);
        Blend(BlendEquation, BlendFactor, BlendFactor);
 };
 
-GLenum get_gl_blend_equation(BlendEquation);
-GLenum get_gl_blend_factor(BlendFactor);
+
+inline ColorWriteMask operator|(ColorWriteMask m1, ColorWriteMask m2)
+{ return static_cast<ColorWriteMask>(static_cast<int>(m1)|static_cast<int>(m2)); }
 
 void operator>>(const LexicalConverter &, BlendEquation &);
 void operator<<(LexicalConverter &, BlendEquation);
@@ -72,7 +83,12 @@ void operator<<(LexicalConverter &, BlendEquation);
 void operator>>(const LexicalConverter &, BlendFactor &);
 void operator<<(LexicalConverter &, BlendFactor);
 
+void operator>>(const LexicalConverter &, ColorWriteMask &);
+void operator<<(LexicalConverter &, ColorWriteMask);
+
 } // namespace GL
 } // namespace Msp
 
+#include "blend_backend.h"
+
 #endif