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Include/ZRenderer/ZShaderProgramBase.hpp

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+/*
+	ZShaderProgramBase.hpp
+	Author: Chris Ertel <crertel@762studios.com>,
+			James Russell <jcrussell@762studios.com>
+	Created: 04/03/2011
+
+	Purpose: 
+	
+	ZShaderProgramBase handles the simple logistics for shader programs (e.g., log access, check usability). It 
+	is intended to be extended by subclasses to handle implementation-specific issues.
+
+	License:
+
+	TODO
+	
+*/
+
+#pragma once
+
+#ifndef _ZSHADERPROGRAMBASE_HPP
+#define _ZSHADERPROGRAMBASE_HPP
+
+#include <ZRenderer/ZShaderProgram.hpp>
+
+#include <ZUtil/ZUtil.hpp>
+
+class ZShaderProgramBase : public ZShaderProgram
+{
+protected:
+	//Default Constructor
+	ZShaderProgramBase();
+
+	//Our attached shaders (currently only support vertex and fragment)
+	ZPtr<ZShader> VertexShader;
+	ZPtr<ZShader> FragmentShader;
+
+	ZArray< ZPtr<ZShader> > Shaders;
+
+	//Our cached set of uniform blocks, samplers, and vertex streams
+	ZArray<ZShaderUniformBlock>		UniformBlocks;
+	ZArray<ZShaderSampler>			Samplers;
+	ZArray<ZShaderStreamAttribute>	Streams;
+
+	//Link log for shader program
+	ZString Log;
+
+	//Flag for shader in usable state
+	bool bIsUsable;
+
+public:
+	//Virtual destructor
+	virtual ~ZShaderProgramBase();
+
+	//Subclass Implementation
+	virtual bool AttachShader(ZPtr<ZShader> _shader);
+
+	//Subclass Implementation
+	virtual void ClearLog();
+
+	//Subclass Implementation
+	virtual void DetachShaders();
+
+	//Subclass Implementation
+	virtual const ZString& GetLinkLog();
+
+	//Subclass Implementation
+	virtual const ZArray<ZShaderStreamAttribute>& GetStreamDeclarations();
+
+	//Subclass Implementation
+	virtual const ZArray<ZShaderUniformBlock>& GetUniformBlockDeclarations();
+
+	//Subclass Implementation
+	virtual const ZArray<ZShaderSampler>& GetShaderSamplerDeclarations(); 
+
+	//Subclass Implementation
+	virtual const ZArray< ZPtr<ZShader> >& GetShaders();
+
+	//Subclass Implementation
+	virtual bool IsUsable();	
+		
+	//Not Implemented
+	virtual bool Link() = 0;
+};
+
+#endif