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include/engine/core/shader.h

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+/* -----------------------------------------------------------------------------
+	GSFramework
+	Copyright 2001-2013 Emmanuel Julien. All Rights Reserved.
+----------------------------------------------------------------------------- */
+
+
+#ifndef	__NRENDERERSHADER__
+#define	__NRENDERERSHADER__
+
+
+		#include "core/shader_input.h"
+		#include "container/nlist.h"
+		#include "memory/nshared_ptr.h"
+
+
+namespace GS {
+	namespace Core {
+
+// Shader varying.
+struct	ShaderVarying
+{
+		String			type, name;
+};
+
+/*!
+	@short	Shader base class.
+	@author Emmanuel Julien (ejulien@gsworks.fr)
+*/
+struct	Shader : public SharedObject
+{
+		String			name;
+
+		String			vertex_decl, vertex,
+						pixel_decl, pixel,
+						geometry_decl, geometry;
+
+		AutoList <ShaderInput *> input_list;
+		AutoList <ShaderVarying *> varying_list;
+
+		/// Clone this shader to a new object.
+		bool			Clone(Shader &clone) const;
+
+		/// Declare a varying.
+		ShaderVarying	*DeclareVarying(const char *name, const char *type);
+		/// Declare an input.
+		ShaderInput		*DeclareInput(const char *name, ShaderInput::DataType data_type, ShaderInput::Semantic semantic, ShaderInput::Type parm_type, ShaderInput::Scope parm_scope, uint array_size = 1);
+
+		/// Get a shader input from its semantic.
+		ShaderInput		*GetInput(ShaderInput::Semantic semantic) const;
+
+		/// Set a define.
+		void			Define(const char *, ShaderInput::Scope define_scope);
+
+		/// Declare inputs from a meta tag.
+		void			ParseInputTag(NML::Tag *);
+		/// Declare varyings from a meta tag.
+		void			ParseVaryingTag(NML::Tag *);
+
+		/// Add an ISL section to this shader.
+		bool			AddISLSection(const char *uri);
+
+		void			Clear();
+
+/*!
+	@name	Serialization.
+	@{
+*/
+		bool			FromMetaTag(NML::Tag &);
+		NML::Tag		*AsMetaTag() const;
+/// @}
+
+		Shader(const char *name = 0, const char *vertex = 0, const char *fragment = 0, const char *geometry = 0);
+};
+
+	} // Core
+} // GS
+
+
+#endif	// __NRENDERERSHADER__