nitrogfx/gfx.h

71 lines
2.7 KiB
C

// Copyright (c) 2015 YamaArashi, 2021-2024 red031000
#ifndef GFX_H
#define GFX_H
#include <stdint.h>
#include <stdbool.h>
#include "options.h"
struct Color {
unsigned char red;
unsigned char green;
unsigned char blue;
};
struct Palette {
struct Color colors[256];
int numColors;
int bitDepth;
};
struct Image {
int width;
int height;
int bitDepth;
/**
* Pseudocode for converting index in pixels to coordinates in image is as follows
* (where (0, 0) is the top left corner with the format (x, y) ):
* if (bitDepth == 4)
* for (int i = 0; i < width * height / 2; i++)
* xCoord = i % <WIDTH OF IMAGE>
* yCoord = i / <WIDTH OF IMAGE>
*
* leftPixel = pixels[i] & 0xF
* rightPixel = pixels[i] >> 4)
*
* leftPixel coordinates: (xCoord, yCoord)
* rightPixel coordinates: (xCoord + 1, yCoord)
* else if (bitDepth == 8)
* for (int i = 0; i < width * height; i++)
* xCoord = i % <WIDTH OF IMAGE>
* yCoord = i / <WIDTH OF IMAGE>
*
* pixel = pixels[i]
* pixel coordinates: (xCoord, yCoord)
*/
unsigned char *pixels;
bool hasPalette;
struct Palette palette;
bool hasTransparency;
};
void ReadImage(char *path, int tilesWide, int bitDepth, int colsPerChunk, int rowsPerChunk, struct Image *image, bool invertColors);
uint32_t ReadNtrImage(char *path, int tilesWide, int bitDepth, int colsPerChunk, int rowsPerChunk, struct Image *image, bool invertColors, bool scanFrontToBack);
void WriteImage(char *path, int numTiles, int bitDepth, int colsPerChunk, int rowsPerChunk, struct Image *image, bool invertColors);
void WriteNtrImage(char *path, int numTiles, int bitDepth, int colsPerChunk, int rowsPerChunk, struct Image *image,
bool invertColors, bool clobberSize, bool byteOrder, bool version101, bool sopc, bool vram, uint32_t scanMode,
uint32_t mappingType, uint32_t key, bool wrongSize);
void FreeImage(struct Image *image);
void ReadGbaPalette(char *path, struct Palette *palette);
void ReadNtrPalette(char *path, struct Palette *palette, int bitdepth, int palIndex, bool inverted);
void WriteGbaPalette(char *path, struct Palette *palette);
void WriteNtrPalette(char *path, struct Palette *palette, bool ncpr, bool ir, int bitdepth, bool pad, int compNum, bool pcmp, bool inverted);
void ReadNtrCell(char *path, struct JsonToCellOptions *options);
void WriteNtrCell(char *path, struct JsonToCellOptions *options);
void WriteNtrScreen(char *path, struct JsonToScreenOptions *options);
void ReadNtrAnimation(char *path, struct JsonToAnimationOptions *options);
void WriteNtrAnimation(char *path, struct JsonToAnimationOptions *options);
#endif // GFX_H