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include/Spectre/Graphics/ShaderProgram.h

@@ -0,0 +1,86 @@
+
+#ifndef SPECTRE_GRAPHICS_SHADER_PROGRAM_H
+#define SPECTRE_GRAPHICS_SHADER_PROGRAM_H
+
+#include <string>
+#include <Spectre/Math/Matrix4.h>
+#include "Shader.h"
+
+struct Color;
+
+class ShaderProgram
+{
+public :
+	ShaderProgram();
+	~ShaderProgram();
+
+	void create();
+
+	void destroy();
+
+	void addShader(const Shader& shader);
+
+	// Load a shader program from file.
+	//
+	// The following naming conventions are supported:
+	//	<name>.glsl		- Virtual file, will load all real shader files with the same name.
+	//	<name>.vert.glsl	- Vertex shader.
+	//	<name>.frag.glsl	- Fragment shader.
+	bool loadFromFile(const std::string& filename);
+
+	// Load a shader from file.
+	bool loadFromFile(const std::string& filename, Shader::Type type);
+
+	// Load a shader from memory.
+	bool loadFromMemory(const std::string& source, Shader::Type type);
+
+	// Link the program.
+	bool link();
+
+	// Returns true if the program was linked successfully
+	bool isLinked() const;
+	
+	// Enable this shader 
+	// All shader operations after this call will affect this shader.
+	void enable() const;
+	
+	// Disable this shader
+	// Operations will no longer affect this shader after this call.
+	void disable() const;
+
+	// Get the last shader error.
+	std::string getLastError() const;
+
+	// ---------------------
+	// Variables.
+	// ---------------------
+
+	bool setMVPMatrix(const Matrix4f& matrix);
+
+	// ---------------------
+	//  General Variables.
+	// ---------------------
+
+	bool setAttribute(const std::string& name, float value) const;
+
+	bool setAttribute(const std::string& name, const Matrix4f& matrix) const;
+
+	bool setUniform(const std::string& name, const Matrix4f& matrix) const;
+
+	bool setUniform(const std::string& name, const Color& color) const;
+
+protected :
+
+	bool getAttribLoc(const std::string& name, int& loc) const;
+	bool getUniformLoc(const std::string& name, int& loc) const;
+
+	std::string fetchErrorLog();
+
+protected :
+
+	unsigned int		m_id; // program id
+
+	mutable std::string	m_error;
+};
+
+#endif /* SPECTRE_GRAPHICS_SHADER_PROGRAM_H */