// Copyright (c) 2015 YamaArashi

#ifndef GFX_H
#define GFX_H

#include <stdint.h>
#include <stdbool.h>

struct Color {
	unsigned char red;
	unsigned char green;
	unsigned char blue;
};

struct Palette {
	struct Color colors[256];
	int numColors;
};

struct __attribute__((packed)) Tile {
	unsigned short index:10;
	unsigned short xflip:1;
	unsigned short yflip:1;
	unsigned short palno:4;
};

struct Tilemap {
	struct Tile *data;
	int numTiles;
};

struct Image {
	int width;
	int height;
	int bitDepth;
	unsigned char *pixels;
	bool hasPalette;
	struct Palette palette;
	bool hasTransparency;
	struct Tilemap tileMap;
	bool hasTilemap;

};

void ReadImage(char *path, int tilesWidth, int bitDepth, int metatileWidth, int metatileHeight, struct Image *image, bool invertColors);
void WriteImage(char *path, int numTiles, int bitDepth, int metatileWidth, int metatileHeight, struct Image *image, bool invertColors);
void FreeImage(struct Image *image);
void ReadGbaPalette(char *path, struct Palette *palette);
void WriteGbaPalette(char *path, struct Palette *palette);
void ReadGbaTilemap(char *path, struct Tilemap *tileMap);
void WriteGbaTilemap(char *path, struct Tilemap *tileMap);

#endif // GFX_H