nuclear@0: #ifndef TEXTURE_H_
nuclear@0: #define TEXTURE_H_
nuclear@0: 
nuclear@0: #include <string>
nuclear@0: #include "image.h"
nuclear@0: 
nuclear@0: struct HitPoint;
nuclear@0: 
nuclear@0: class Texture {
nuclear@0: public:
nuclear@0: 	enum class SampleMode { nearest, linear };
nuclear@0: 	enum class WrapMode { clamp, repeat };
nuclear@0: 
nuclear@0: protected:
nuclear@0: 	std::string name;
nuclear@0: 
nuclear@0: 	SampleMode sampling;
nuclear@0: 	WrapMode wrapping;
nuclear@0: 
nuclear@0: public:
nuclear@0: 	Texture();
nuclear@0: 	virtual ~Texture();
nuclear@0: 
nuclear@0: 	virtual void set_name(const char *name);
nuclear@0: 	virtual const char *get_name() const;
nuclear@0: 
nuclear@0: 	virtual Image *get_image(int idx = 0) = 0;
nuclear@0: 	virtual const Image *get_image(int idx = 0) const = 0;
nuclear@0: 
nuclear@0: 	virtual void set_sampling_mode(SampleMode mode);
nuclear@0: 	virtual SampleMode get_sampling_mode() const;
nuclear@0: 	virtual void set_wrapping_mode(WrapMode mode);
nuclear@0: 	virtual WrapMode get_wrapping_mode() const;
nuclear@0: 
nuclear@0: 	virtual bool load(const char *fname) = 0;
nuclear@0: 
nuclear@0: 	virtual Color sample(float u, float v, float w) const = 0;
nuclear@0: 	virtual Color sample(const HitPoint &hit) const;
nuclear@0: };
nuclear@0: 
nuclear@0: class Texture2D : public Texture {
nuclear@0: private:
nuclear@0: 	Image img;
nuclear@0: 
nuclear@0: public:
nuclear@0: 	virtual Image *get_image(int idx = 0);
nuclear@0: 	virtual const Image *get_image(int idx = 0) const;
nuclear@0: 
nuclear@0: 	virtual bool load(const char *fname);
nuclear@0: 
nuclear@0: 	virtual Color sample(float u, float v, float w) const;
nuclear@0: 
nuclear@0: 	friend Texture *load_texture(const char *fname);
nuclear@0: };
nuclear@0: 
nuclear@0: class TextureCube : public Texture {
nuclear@0: private:
nuclear@0: 	Image img[6];
nuclear@0: 
nuclear@0: public:
nuclear@0: 	TextureCube();
nuclear@0: 
nuclear@0: 	virtual Image *get_image(int idx = 0);
nuclear@0: 	virtual const Image *get_image(int idx = 0) const;
nuclear@0: 
nuclear@0: 	virtual bool load(const char *fname);
nuclear@0: 
nuclear@0: 	virtual Color sample(float u, float v, float w) const;
nuclear@0: 	virtual Color sample(const HitPoint &hit) const;
nuclear@0: 
nuclear@0: 	friend Texture *load_texture(const char *fname);
nuclear@0: };
nuclear@0: 
nuclear@0: Texture *load_texture(const char *fname);
nuclear@0: 
nuclear@0: #endif	// TEXTURE_H_