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include/engine/gpu/gpu_material_shader.h

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+/* -----------------------------------------------------------------------------
+	GSFramework
+	Copyright 2001-2013 Emmanuel Julien. All Rights Reserved.
+------------------------------------------------------------------------------*/
+
+
+#ifndef	__GPUMATERIALSHADER__
+#define __GPUMATERIALSHADER__
+
+
+		#include "gpu/gpu_shader.h"
+
+
+namespace GS {
+	namespace GPU {
+
+// Static parameters influencing a material shader.
+struct	MaterialShaderStaticParm
+{
+		bool		no_lighting;
+		bool		use_alpha_test;
+		bool		use_depth_bias;
+		bool		use_skinning;
+
+		bool		operator == (const MaterialShaderStaticParm &p) const
+		{	return (no_lighting == p.no_lighting) && (use_alpha_test == p.use_alpha_test) && (use_depth_bias == p.use_depth_bias) && (use_skinning == p.use_skinning);	}
+};
+
+// Shader compiled for a material.
+class	MaterialShader : public Render::MaterialShader
+{
+		Renderer	&renderer;
+
+		String		name;
+
+		MaterialShaderStaticParm parm;
+
+		void		CompileForwardPointLight(Core::Shader &, bool shadow);
+		void		CompileForwardSpotLight(Core::Shader &, bool shadow, bool projection_map);
+		void		CompileForwardLinearLight(Core::Shader &, bool shadow);
+		bool		CompileShaderSection(const char *, Core::Shader &);
+
+public:
+
+enum	Variant
+{
+		Depth,					// Shadow map program.
+
+/*!
+	@name	Deferred shading programs.
+	@{
+*/
+		DS_GBufferMRT4,
+/*!
+	@}
+	@name	Forward shading programs.
+	@{
+*/
+		FS_Constant,
+
+		FS_PointLight,
+		FS_PointLightShadowMapping,
+
+		FS_LinearLight,
+		FS_LinearLightShadowMapping,
+
+		FS_SpotLight,
+		FS_SpotLightShadowMapping,
+		FS_SpotLightProjection,
+		FS_SpotLightProjectionShadowMapping,
+
+		PP_NormalDepth,			// Used by the SSAO post-process.
+/*!
+	@}
+	@name	Common programs.
+	@{
+*/
+		PP_Velocity,
+/// @}
+
+		Last
+};
+
+		const String &GetName() const { return name; }
+		const MaterialShaderStaticParm &GetStaticParm() const { return parm; }
+
+		Array <SharedPtr <Shader> > variants;
+
+virtual	bool		SetUserUniformValue(const char *name, const Vector4 &);
+virtual	bool		SetUserUniformValue(const char *name, Render::Texture *);
+
+		bool		SetupMaterialProgram(Variant, Core::Shader &);
+		bool		Create(Render::ResourceFactory &, const Core::Shader &, const MaterialShaderStaticParm &);
+
+		MaterialShader(Renderer &);
+		~MaterialShader();
+};
+
+typedef	SharedPtr <MaterialShader> sMaterialShader;
+
+	} // GPU
+} // GS
+
+
+#endif	// __GPUMATERIALSHADER__