#ifndef SPECTRE_GRAPHICS_IMAGE_H
#define SPECTRE_GRAPHICS_IMAGE_H

#include <string>
#include <vector>
#include <Spectre/Math/Color.h>
#include <Spectre/Math/Vector2.h>
#include <Spectre/Graphics/PixelFormat.h>

namespace sp {

class Image
{
public :
	enum Channels {
		Alpha,
		RGB,
		RGBA
	};

	Image();

	void create(unsigned width, unsigned height, const Color& color = Color::Black, enum Channels comp = Channels::RGBA);
	void create(unsigned width, unsigned height, const void* pixels, PixelFormat format = PixelFormat::PF_RGBA);

	const Vector2u& getSize() const;

	unsigned int getWidth() const;

	unsigned int getHeight() const;

	unsigned int getNumChannels() const;

	unsigned int getStride() const;

	PixelFormat getFormat() const;

	// Returns true if the image has a alpha channel.
	bool hasAlpha() const;

	bool loadFromFile(const std::string& filename);

	bool loadFromMemory(const void *data, unsigned int size);

	void saveToFile(const std::string& filename) const;

	void setPixel(unsigned x, unsigned y, const Color& c);

	Color getPixel(unsigned x, unsigned y) const;

	void setPixels(const void* pixels, PixelFormat format = PixelFormat::PF_RGBA);

	const unsigned char* getPixels() const;

	void flipY();

private :

	Vector2u m_size;

	enum Channels m_channels;

	std::vector<unsigned char> m_pixels;
};

} //namespace sp

#endif /* SPECTRE_GRAPHICS_IMAGE_H */