update nitrogfx

This commit is contained in:
red031000 2024-02-03 01:43:36 +00:00
parent 01fcae8b2e
commit e556f01d72
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7 changed files with 261 additions and 235 deletions

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@ -1,4 +1,4 @@
Copyright (c) 2015 YamaArashi, 2021-2023 red031000
Copyright (c) 2015 YamaArashi, 2021-2024 red031000
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

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@ -1,4 +1,4 @@
// Copyright (c) 2015 YamaArashi, 2021-2023 red031000
// Copyright (c) 2015 YamaArashi, 2021-2024 red031000
#include <string.h>
#include <stdio.h>
@ -19,37 +19,37 @@
#define DOWNCONVERT_BIT_DEPTH(x) ((x) / 8)
static void AdvanceMetatilePosition(int *subTileX, int *subTileY, int *metatileX, int *metatileY, int metatilesWide, int metatileWidth, int metatileHeight)
static void AdvanceTilePosition(int *tilesSoFar, int *rowsSoFar, int *chunkStartX, int *chunkStartY, int chunksWide, int colsPerChunk, int rowsPerChunk)
{
(*subTileX)++;
if (*subTileX == metatileWidth) {
*subTileX = 0;
(*subTileY)++;
if (*subTileY == metatileHeight) {
*subTileY = 0;
(*metatileX)++;
if (*metatileX == metatilesWide) {
*metatileX = 0;
(*metatileY)++;
(*tilesSoFar)++;
if (*tilesSoFar == colsPerChunk) {
*tilesSoFar = 0;
(*rowsSoFar)++;
if (*rowsSoFar == rowsPerChunk) {
*rowsSoFar = 0;
(*chunkStartX)++;
if (*chunkStartX == chunksWide) {
*chunkStartX = 0;
(*chunkStartY)++;
}
}
}
}
static void ConvertFromTiles1Bpp(unsigned char *src, unsigned char *dest, int numTiles, int metatilesWide, int metatileWidth, int metatileHeight, bool invertColors)
static void ConvertFromTiles1Bpp(unsigned char *src, unsigned char *dest, int numTiles, int chunksWide, int colsPerChunk, int rowsPerChunk, bool invertColors)
{
int subTileX = 0;
int subTileY = 0;
int metatileX = 0;
int metatileY = 0;
int pitch = metatilesWide * metatileWidth;
int tilesSoFar = 0;
int rowsSoFar = 0;
int chunkStartX = 0;
int chunkStartY = 0;
int pitch = chunksWide * colsPerChunk;
for (int i = 0; i < numTiles; i++) {
for (int j = 0; j < 8; j++) {
int destY = (metatileY * metatileHeight + subTileY) * 8 + j;
int destX = metatileX * metatileWidth + subTileX;
int idxComponentY = (chunkStartY * rowsPerChunk + rowsSoFar) * 8 + j;
int idxComponentX = chunkStartX * colsPerChunk + tilesSoFar;
unsigned char srcPixelOctet = *src++;
unsigned char *destPixelOctet = &dest[destY * pitch + destX];
unsigned char *destPixelOctet = &dest[idxComponentY * pitch + idxComponentX];
for (int k = 0; k < 8; k++) {
*destPixelOctet <<= 1;
@ -58,24 +58,24 @@ static void ConvertFromTiles1Bpp(unsigned char *src, unsigned char *dest, int nu
}
}
AdvanceMetatilePosition(&subTileX, &subTileY, &metatileX, &metatileY, metatilesWide, metatileWidth, metatileHeight);
AdvanceTilePosition(&tilesSoFar, &rowsSoFar, &chunkStartX, &chunkStartY, chunksWide, colsPerChunk, rowsPerChunk);
}
}
static void ConvertFromTiles4Bpp(unsigned char *src, unsigned char *dest, int numTiles, int metatilesWide, int metatileWidth, int metatileHeight, bool invertColors)
static void ConvertFromTiles4Bpp(unsigned char *src, unsigned char *dest, int numTiles, int chunksWide, int colsPerChunk, int rowsPerChunk, bool invertColors)
{
int subTileX = 0;
int subTileY = 0;
int metatileX = 0;
int metatileY = 0;
int pitch = (metatilesWide * metatileWidth) * 4;
int tilesSoFar = 0;
int rowsSoFar = 0;
int chunkStartX = 0;
int chunkStartY = 0;
int pitch = (chunksWide * colsPerChunk) * 4;
for (int i = 0; i < numTiles; i++) {
for (int j = 0; j < 8; j++) {
int destY = (metatileY * metatileHeight + subTileY) * 8 + j;
int idxComponentY = (chunkStartY * rowsPerChunk + rowsSoFar) * 8 + j;
for (int k = 0; k < 4; k++) {
int destX = (metatileX * metatileWidth + subTileX) * 4 + k;
int idxComponentX = (chunkStartX * colsPerChunk + tilesSoFar) * 4 + k;
unsigned char srcPixelPair = *src++;
unsigned char leftPixel = srcPixelPair & 0xF;
unsigned char rightPixel = srcPixelPair >> 4;
@ -85,11 +85,11 @@ static void ConvertFromTiles4Bpp(unsigned char *src, unsigned char *dest, int nu
rightPixel = 15 - rightPixel;
}
dest[destY * pitch + destX] = (leftPixel << 4) | rightPixel;
dest[idxComponentY * pitch + idxComponentX] = (leftPixel << 4) | rightPixel;
}
}
AdvanceMetatilePosition(&subTileX, &subTileY, &metatileX, &metatileY, metatilesWide, metatileWidth, metatileHeight);
AdvanceTilePosition(&tilesSoFar, &rowsSoFar, &chunkStartX, &chunkStartY, chunksWide, colsPerChunk, rowsPerChunk);
}
}
@ -135,30 +135,30 @@ static uint32_t ConvertFromScanned4Bpp(unsigned char *src, unsigned char *dest,
return encValue;
}
static void ConvertFromTiles8Bpp(unsigned char *src, unsigned char *dest, int numTiles, int metatilesWide, int metatileWidth, int metatileHeight, bool invertColors)
static void ConvertFromTiles8Bpp(unsigned char *src, unsigned char *dest, int numTiles, int chunksWide, int colsPerChunk, int rowsPerChunk, bool invertColors)
{
int subTileX = 0;
int subTileY = 0;
int metatileX = 0;
int metatileY = 0;
int pitch = (metatilesWide * metatileWidth) * 8;
int tilesSoFar = 0;
int rowsSoFar = 0;
int chunkStartX = 0;
int chunkStartY = 0;
int pitch = (chunksWide * colsPerChunk) * 8;
for (int i = 0; i < numTiles; i++) {
for (int j = 0; j < 8; j++) {
int destY = (metatileY * metatileHeight + subTileY) * 8 + j;
int idxComponentY = (chunkStartY * rowsPerChunk + rowsSoFar) * 8 + j;
for (int k = 0; k < 8; k++) {
int destX = (metatileX * metatileWidth + subTileX) * 8 + k;
int idxComponentX = (chunkStartX * colsPerChunk + tilesSoFar) * 8 + k;
unsigned char srcPixel = *src++;
if (invertColors)
srcPixel = 255 - srcPixel;
dest[destY * pitch + destX] = srcPixel;
dest[idxComponentY * pitch + idxComponentX] = srcPixel;
}
}
AdvanceMetatilePosition(&subTileX, &subTileY, &metatileX, &metatileY, metatilesWide, metatileWidth, metatileHeight);
AdvanceTilePosition(&tilesSoFar, &rowsSoFar, &chunkStartX, &chunkStartY, chunksWide, colsPerChunk, rowsPerChunk);
}
}
@ -201,19 +201,19 @@ static uint32_t ConvertFromScanned8Bpp(unsigned char *src, unsigned char *dest,
return encValue;
}
static void ConvertToTiles1Bpp(unsigned char *src, unsigned char *dest, int numTiles, int metatilesWide, int metatileWidth, int metatileHeight, bool invertColors)
static void ConvertToTiles1Bpp(unsigned char *src, unsigned char *dest, int numTiles, int chunksWide, int colsPerChunk, int rowsPerChunk, bool invertColors)
{
int subTileX = 0;
int subTileY = 0;
int metatileX = 0;
int metatileY = 0;
int pitch = metatilesWide * metatileWidth;
int tilesSoFar = 0;
int rowsSoFar = 0;
int chunkStartX = 0;
int chunkStartY = 0;
int pitch = chunksWide * colsPerChunk;
for (int i = 0; i < numTiles; i++) {
for (int j = 0; j < 8; j++) {
int srcY = (metatileY * metatileHeight + subTileY) * 8 + j;
int srcX = metatileX * metatileWidth + subTileX;
unsigned char srcPixelOctet = src[srcY * pitch + srcX];
int idxComponentY = (chunkStartY * rowsPerChunk + rowsSoFar) * 8 + j;
int idxComponentX = chunkStartX * colsPerChunk + tilesSoFar;
unsigned char srcPixelOctet = src[idxComponentY * pitch + idxComponentX];
unsigned char *destPixelOctet = dest++;
for (int k = 0; k < 8; k++) {
@ -223,25 +223,25 @@ static void ConvertToTiles1Bpp(unsigned char *src, unsigned char *dest, int numT
}
}
AdvanceMetatilePosition(&subTileX, &subTileY, &metatileX, &metatileY, metatilesWide, metatileWidth, metatileHeight);
AdvanceTilePosition(&tilesSoFar, &rowsSoFar, &chunkStartX, &chunkStartY, chunksWide, colsPerChunk, rowsPerChunk);
}
}
static void ConvertToTiles4Bpp(unsigned char *src, unsigned char *dest, int numTiles, int metatilesWide, int metatileWidth, int metatileHeight, bool invertColors)
static void ConvertToTiles4Bpp(unsigned char *src, unsigned char *dest, int numTiles, int chunksWide, int colsPerChunk, int rowsPerChunk, bool invertColors)
{
int subTileX = 0;
int subTileY = 0;
int metatileX = 0;
int metatileY = 0;
int pitch = (metatilesWide * metatileWidth) * 4;
int tilesSoFar = 0;
int rowsSoFar = 0;
int chunkStartX = 0;
int chunkStartY = 0;
int pitch = (chunksWide * colsPerChunk) * 4;
for (int i = 0; i < numTiles; i++) {
for (int j = 0; j < 8; j++) {
int srcY = (metatileY * metatileHeight + subTileY) * 8 + j;
int idxComponentY = (chunkStartY * rowsPerChunk + rowsSoFar) * 8 + j;
for (int k = 0; k < 4; k++) {
int srcX = (metatileX * metatileWidth + subTileX) * 4 + k;
unsigned char srcPixelPair = src[srcY * pitch + srcX];
int idxComponentX = (chunkStartX * colsPerChunk + tilesSoFar) * 4 + k;
unsigned char srcPixelPair = src[idxComponentY * pitch + idxComponentX];
unsigned char leftPixel = srcPixelPair >> 4;
unsigned char rightPixel = srcPixelPair & 0xF;
@ -254,7 +254,7 @@ static void ConvertToTiles4Bpp(unsigned char *src, unsigned char *dest, int numT
}
}
AdvanceMetatilePosition(&subTileX, &subTileY, &metatileX, &metatileY, metatilesWide, metatileWidth, metatileHeight);
AdvanceTilePosition(&tilesSoFar, &rowsSoFar, &chunkStartX, &chunkStartY, chunksWide, colsPerChunk, rowsPerChunk);
}
}
@ -294,21 +294,21 @@ static void ConvertToScanned4Bpp(unsigned char *src, unsigned char *dest, int fi
}
}
static void ConvertToTiles8Bpp(unsigned char *src, unsigned char *dest, int numTiles, int metatilesWide, int metatileWidth, int metatileHeight, bool invertColors)
static void ConvertToTiles8Bpp(unsigned char *src, unsigned char *dest, int numTiles, int chunksWide, int colsPerChunk, int rowsPerChunk, bool invertColors)
{
int subTileX = 0;
int subTileY = 0;
int metatileX = 0;
int metatileY = 0;
int pitch = (metatilesWide * metatileWidth) * 8;
int tilesSoFar = 0;
int rowsSoFar = 0;
int chunkStartX = 0;
int chunkStartY = 0;
int pitch = (chunksWide * colsPerChunk) * 8;
for (int i = 0; i < numTiles; i++) {
for (int j = 0; j < 8; j++) {
int srcY = (metatileY * metatileHeight + subTileY) * 8 + j;
int idxComponentY = (chunkStartY * rowsPerChunk + rowsSoFar) * 8 + j;
for (int k = 0; k < 8; k++) {
int srcX = (metatileX * metatileWidth + subTileX) * 8 + k;
unsigned char srcPixel = src[srcY * pitch + srcX];
int idxComponentX = (chunkStartX * colsPerChunk + tilesSoFar) * 8 + k;
unsigned char srcPixel = src[idxComponentY * pitch + idxComponentX];
if (invertColors)
srcPixel = 255 - srcPixel;
@ -317,53 +317,53 @@ static void ConvertToTiles8Bpp(unsigned char *src, unsigned char *dest, int numT
}
}
AdvanceMetatilePosition(&subTileX, &subTileY, &metatileX, &metatileY, metatilesWide, metatileWidth, metatileHeight);
AdvanceTilePosition(&tilesSoFar, &rowsSoFar, &chunkStartX, &chunkStartY, chunksWide, colsPerChunk, rowsPerChunk);
}
}
void ReadImage(char *path, int tilesWidth, int bitDepth, int metatileWidth, int metatileHeight, struct Image *image, bool invertColors)
void ReadImage(char *path, int tilesWide, int bitDepth, int colsPerChunk, int rowsPerChunk, struct Image *image, bool invertColors)
{
int tileSize = bitDepth * 8;
int tileSize = bitDepth * 8; // number of bytes per tile
int fileSize;
unsigned char *buffer = ReadWholeFile(path, &fileSize);
int numTiles = fileSize / tileSize;
int tilesHeight = (numTiles + tilesWidth - 1) / tilesWidth;
int tilesTall = (numTiles + tilesWide - 1) / tilesWide;
if (tilesWidth % metatileWidth != 0)
FATAL_ERROR("The width in tiles (%d) isn't a multiple of the specified metatile width (%d)", tilesWidth, metatileWidth);
if (tilesWide % colsPerChunk != 0)
FATAL_ERROR("The width in tiles (%d) isn't a multiple of the specified tiles per row (%d)", tilesWide, colsPerChunk);
if (tilesHeight % metatileHeight != 0)
FATAL_ERROR("The height in tiles (%d) isn't a multiple of the specified metatile height (%d)", tilesHeight, metatileHeight);
if (tilesTall % rowsPerChunk != 0)
FATAL_ERROR("The height in tiles (%d) isn't a multiple of the specified rows per chunk (%d)", tilesTall, rowsPerChunk);
image->width = tilesWidth * 8;
image->height = tilesHeight * 8;
image->width = tilesWide * 8;
image->height = tilesTall * 8;
image->bitDepth = bitDepth;
image->pixels = calloc(tilesWidth * tilesHeight, tileSize);
image->pixels = calloc(tilesWide * tilesTall, tileSize);
if (image->pixels == NULL)
FATAL_ERROR("Failed to allocate memory for pixels.\n");
int metatilesWide = tilesWidth / metatileWidth;
int chunksWide = tilesWide / colsPerChunk; // how many chunks side-by-side are needed for the full width of the image
switch (bitDepth) {
case 1:
ConvertFromTiles1Bpp(buffer, image->pixels, numTiles, metatilesWide, metatileWidth, metatileHeight, invertColors);
ConvertFromTiles1Bpp(buffer, image->pixels, numTiles, chunksWide, colsPerChunk, rowsPerChunk, invertColors);
break;
case 4:
ConvertFromTiles4Bpp(buffer, image->pixels, numTiles, metatilesWide, metatileWidth, metatileHeight, invertColors);
ConvertFromTiles4Bpp(buffer, image->pixels, numTiles, chunksWide, colsPerChunk, rowsPerChunk, invertColors);
break;
case 8:
ConvertFromTiles8Bpp(buffer, image->pixels, numTiles, metatilesWide, metatileWidth, metatileHeight, invertColors);
ConvertFromTiles8Bpp(buffer, image->pixels, numTiles, chunksWide, colsPerChunk, rowsPerChunk, invertColors);
break;
}
free(buffer);
}
uint32_t ReadNtrImage(char *path, int tilesWidth, int bitDepth, int metatileWidth, int metatileHeight, struct Image *image, bool invertColors, bool scanFrontToBack)
uint32_t ReadNtrImage(char *path, int tilesWide, int bitDepth, int colsPerChunk, int rowsPerChunk, struct Image *image, bool invertColors, bool scanFrontToBack)
{
int fileSize;
unsigned char *buffer = ReadWholeFile(path, &fileSize);
@ -391,37 +391,37 @@ uint32_t ReadNtrImage(char *path, int tilesWidth, int bitDepth, int metatileWidt
bool scanned = charHeader[0x14];
int tileSize = bitDepth * 8;
int tileSize = bitDepth * 8; // number of bytes per tile
if (tilesWidth == 0) {
tilesWidth = ReadS16(charHeader, 0xA);
if (tilesWidth < 0) {
tilesWidth = 1;
if (tilesWide == 0) {
tilesWide = ReadS16(charHeader, 0xA);
if (tilesWide < 0) {
tilesWide = 1;
}
}
int numTiles = ReadS32(charHeader, 0x18) / (64 / (8 / bitDepth));
int tilesHeight = ReadS16(charHeader, 0x8);
if (tilesHeight < 0)
tilesHeight = (numTiles + tilesWidth - 1) / tilesWidth;
int tilesTall = ReadS16(charHeader, 0x8);
if (tilesTall < 0)
tilesTall = (numTiles + tilesWide - 1) / tilesWide;
if (tilesWidth % metatileWidth != 0)
FATAL_ERROR("The width in tiles (%d) isn't a multiple of the specified metatile width (%d)", tilesWidth, metatileWidth);
if (tilesWide % colsPerChunk != 0)
FATAL_ERROR("The width in tiles (%d) isn't a multiple of the specified tiles per row (%d)", tilesWide, colsPerChunk);
if (tilesHeight % metatileHeight != 0)
FATAL_ERROR("The height in tiles (%d) isn't a multiple of the specified metatile height (%d)", tilesHeight, metatileHeight);
if (tilesTall % rowsPerChunk != 0)
FATAL_ERROR("The height in tiles (%d) isn't a multiple of the specified rows per chunk (%d)", tilesTall, rowsPerChunk);
image->width = tilesWidth * 8;
image->height = tilesHeight * 8;
image->width = tilesWide * 8;
image->height = tilesTall * 8;
image->bitDepth = bitDepth;
image->pixels = calloc(tilesWidth * tilesHeight, tileSize);
image->pixels = calloc(tilesWide * tilesTall, tileSize);
if (image->pixels == NULL)
FATAL_ERROR("Failed to allocate memory for pixels.\n");
int metatilesWide = tilesWidth / metatileWidth;
int chunksWide = tilesWide / colsPerChunk; // how many chunks side-by-side are needed for the full width of the image
uint32_t key = 0;
if (scanned)
@ -441,11 +441,11 @@ uint32_t ReadNtrImage(char *path, int tilesWidth, int bitDepth, int metatileWidt
switch (bitDepth)
{
case 4:
ConvertFromTiles4Bpp(imageData, image->pixels, numTiles, metatilesWide, metatileWidth, metatileHeight,
ConvertFromTiles4Bpp(imageData, image->pixels, numTiles, chunksWide, colsPerChunk, rowsPerChunk,
invertColors);
break;
case 8:
ConvertFromTiles8Bpp(imageData, image->pixels, numTiles, metatilesWide, metatileWidth, metatileHeight,
ConvertFromTiles8Bpp(imageData, image->pixels, numTiles, chunksWide, colsPerChunk, rowsPerChunk,
invertColors);
break;
}
@ -455,9 +455,9 @@ uint32_t ReadNtrImage(char *path, int tilesWidth, int bitDepth, int metatileWidt
return key;
}
void WriteImage(char *path, int numTiles, int bitDepth, int metatileWidth, int metatileHeight, struct Image *image, bool invertColors)
void WriteImage(char *path, int numTiles, int bitDepth, int colsPerChunk, int rowsPerChunk, struct Image *image, bool invertColors)
{
int tileSize = bitDepth * 8;
int tileSize = bitDepth * 8; // number of bytes per tile
if (image->width % 8 != 0)
FATAL_ERROR("The width in pixels (%d) isn't a multiple of 8.\n", image->width);
@ -465,16 +465,16 @@ void WriteImage(char *path, int numTiles, int bitDepth, int metatileWidth, int m
if (image->height % 8 != 0)
FATAL_ERROR("The height in pixels (%d) isn't a multiple of 8.\n", image->height);
int tilesWidth = image->width / 8;
int tilesHeight = image->height / 8;
int tilesWide = image->width / 8; // how many tiles wide the image is
int tilesTall = image->height / 8; // how many tiles tall the image is
if (tilesWidth % metatileWidth != 0)
FATAL_ERROR("The width in tiles (%d) isn't a multiple of the specified metatile width (%d)", tilesWidth, metatileWidth);
if (tilesWide % colsPerChunk != 0)
FATAL_ERROR("The width in tiles (%d) isn't a multiple of the specified tiles per row (%d)", tilesWide, colsPerChunk);
if (tilesHeight % metatileHeight != 0)
FATAL_ERROR("The height in tiles (%d) isn't a multiple of the specified metatile height (%d)", tilesHeight, metatileHeight);
if (tilesTall % rowsPerChunk != 0)
FATAL_ERROR("The height in tiles (%d) isn't a multiple of the specified rows per chunk (%d)", tilesTall, rowsPerChunk);
int maxNumTiles = tilesWidth * tilesHeight;
int maxNumTiles = tilesWide * tilesTall;
if (numTiles == 0)
numTiles = maxNumTiles;
@ -487,17 +487,17 @@ void WriteImage(char *path, int numTiles, int bitDepth, int metatileWidth, int m
if (buffer == NULL)
FATAL_ERROR("Failed to allocate memory for pixels.\n");
int metatilesWide = tilesWidth / metatileWidth;
int chunksWide = tilesWide / colsPerChunk; // how many chunks side-by-side are needed for the full width of the image
switch (bitDepth) {
case 1:
ConvertToTiles1Bpp(image->pixels, buffer, numTiles, metatilesWide, metatileWidth, metatileHeight, invertColors);
ConvertToTiles1Bpp(image->pixels, buffer, numTiles, chunksWide, colsPerChunk, rowsPerChunk, invertColors);
break;
case 4:
ConvertToTiles4Bpp(image->pixels, buffer, numTiles, metatilesWide, metatileWidth, metatileHeight, invertColors);
ConvertToTiles4Bpp(image->pixels, buffer, numTiles, chunksWide, colsPerChunk, rowsPerChunk, invertColors);
break;
case 8:
ConvertToTiles8Bpp(image->pixels, buffer, numTiles, metatilesWide, metatileWidth, metatileHeight, invertColors);
ConvertToTiles8Bpp(image->pixels, buffer, numTiles, chunksWide, colsPerChunk, rowsPerChunk, invertColors);
break;
}
@ -506,7 +506,7 @@ void WriteImage(char *path, int numTiles, int bitDepth, int metatileWidth, int m
free(buffer);
}
void WriteNtrImage(char *path, int numTiles, int bitDepth, int metatileWidth, int metatileHeight, struct Image *image,
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)
{
@ -515,7 +515,7 @@ void WriteNtrImage(char *path, int numTiles, int bitDepth, int metatileWidth, in
if (fp == NULL)
FATAL_ERROR("Failed to open \"%s\" for writing.\n", path);
int tileSize = bitDepth * 8;
int tileSize = bitDepth * 8; // number of bytes per tile
if (image->width % 8 != 0)
FATAL_ERROR("The width in pixels (%d) isn't a multiple of 8.\n", image->width);
@ -523,16 +523,16 @@ void WriteNtrImage(char *path, int numTiles, int bitDepth, int metatileWidth, in
if (image->height % 8 != 0)
FATAL_ERROR("The height in pixels (%d) isn't a multiple of 8.\n", image->height);
int tilesWidth = image->width / 8;
int tilesHeight = image->height / 8;
int tilesWide = image->width / 8; // how many tiles wide the image is
int tilesTall = image->height / 8; // how many tiles tall the image is
if (tilesWidth % metatileWidth != 0)
FATAL_ERROR("The width in tiles (%d) isn't a multiple of the specified metatile width (%d)", tilesWidth, metatileWidth);
if (tilesWide % colsPerChunk != 0)
FATAL_ERROR("The width in tiles (%d) isn't a multiple of the specified tiles per row (%d)", tilesWide, colsPerChunk);
if (tilesHeight % metatileHeight != 0)
FATAL_ERROR("The height in tiles (%d) isn't a multiple of the specified metatile height (%d)", tilesHeight, metatileHeight);
if (tilesTall % rowsPerChunk != 0)
FATAL_ERROR("The height in tiles (%d) isn't a multiple of the specified rows per chunk (%d)", tilesTall, rowsPerChunk);
int maxNumTiles = tilesWidth * tilesHeight;
int maxNumTiles = tilesWide * tilesTall;
if (numTiles == 0)
numTiles = maxNumTiles;
@ -545,7 +545,7 @@ void WriteNtrImage(char *path, int numTiles, int bitDepth, int metatileWidth, in
if (pixelBuffer == NULL)
FATAL_ERROR("Failed to allocate memory for pixels.\n");
int metatilesWide = tilesWidth / metatileWidth;
int chunksWide = tilesWide / colsPerChunk; // how many chunks side-by-side are needed for the full width of the image
if (scanMode)
{
@ -564,11 +564,11 @@ void WriteNtrImage(char *path, int numTiles, int bitDepth, int metatileWidth, in
switch (bitDepth)
{
case 4:
ConvertToTiles4Bpp(image->pixels, pixelBuffer, numTiles, metatilesWide, metatileWidth, metatileHeight,
ConvertToTiles4Bpp(image->pixels, pixelBuffer, numTiles, chunksWide, colsPerChunk, rowsPerChunk,
invertColors);
break;
case 8:
ConvertToTiles8Bpp(image->pixels, pixelBuffer, numTiles, metatilesWide, metatileWidth, metatileHeight,
ConvertToTiles8Bpp(image->pixels, pixelBuffer, numTiles, chunksWide, colsPerChunk, rowsPerChunk,
invertColors);
break;
}
@ -586,11 +586,11 @@ void WriteNtrImage(char *path, int numTiles, int bitDepth, int metatileWidth, in
if (!clobberSize)
{
charHeader[8] = tilesHeight & 0xFF;
charHeader[9] = (tilesHeight >> 8) & 0xFF;
charHeader[8] = tilesTall & 0xFF;
charHeader[9] = (tilesTall >> 8) & 0xFF;
charHeader[10] = tilesWidth & 0xFF;
charHeader[11] = (tilesWidth >> 8) & 0xFF;
charHeader[10] = tilesWide & 0xFF;
charHeader[11] = (tilesWide >> 8) & 0xFF;
}
else
{
@ -655,11 +655,11 @@ void WriteNtrImage(char *path, int numTiles, int bitDepth, int metatileWidth, in
{
unsigned char sopcBuffer[0x10] = { 0x53, 0x4F, 0x50, 0x43, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
sopcBuffer[12] = tilesWidth & 0xFF;
sopcBuffer[13] = (tilesWidth >> 8) & 0xFF;
sopcBuffer[12] = tilesWide & 0xFF;
sopcBuffer[13] = (tilesWide >> 8) & 0xFF;
sopcBuffer[14] = tilesHeight & 0xFF;
sopcBuffer[15] = (tilesHeight >> 8) & 0xFF;
sopcBuffer[14] = tilesTall & 0xFF;
sopcBuffer[15] = (tilesTall >> 8) & 0xFF;
fwrite(sopcBuffer, 1, 0x10, fp);
}
@ -719,9 +719,11 @@ void ReadNtrPalette(char *path, struct Palette *palette, int bitdepth, int palIn
bitdepth = bitdepth ? bitdepth : palette->bitDepth;
size_t paletteSize = (paletteHeader[0x10]) | (paletteHeader[0x11] << 8) | (paletteHeader[0x12] << 16) | (paletteHeader[0x13] << 24);
if (palIndex == 0) {
if (palIndex == 0)
{
palette->numColors = paletteSize / 2;
} else {
} else
{
palette->numColors = bitdepth == 4 ? 16 : 256; //remove header and divide by 2
--palIndex;
}
@ -780,10 +782,12 @@ void WriteNtrPalette(char *path, struct Palette *palette, bool ncpr, bool ir, in
uint32_t size = colourNum * 2; //todo check if there's a better way to detect :/
uint32_t extSize = size + (ncpr ? 0x10 : 0x18);
int numSections = 1;
int pcmpColorNum = 0;
uint32_t pcmpSize = 0;
if (pcmp) {
if (pcmp)
{
pcmpColorNum = colourNum / (bitdepth == 4 ? 16 : 256);
if (pcmpColorNum == 0) {
FATAL_ERROR("colourNum=%d palette->bitDepth=%d\n", colourNum, bitdepth);
@ -859,7 +863,8 @@ void WriteNtrPalette(char *path, struct Palette *palette, bool ncpr, bool ir, in
fwrite(colours, 1, colourNum * 2, fp);
free(colours);
if (pcmp) {
if (pcmp)
{
uint8_t pcmp_header[16] = {0x50, 0x4D, 0x43, 0x50, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEF, 0xBE, 0x08, 0x00, 0x00, 0x00};
pcmp_header[4] = pcmpSize & 0xFF;
pcmp_header[5] = (pcmpSize >> 8) & 0xFF;
@ -870,7 +875,8 @@ void WriteNtrPalette(char *path, struct Palette *palette, bool ncpr, bool ir, in
fwrite(pcmp_header, 1, 16, fp);
uint8_t *pcmp_data = malloc(2 * pcmpColorNum);
if (pcmp_data == NULL) {
if (pcmp_data == NULL)
{
FATAL_ERROR("failed to alloc pcmp_data\n");
}
for (int i = 0; i < pcmpColorNum; ++i) {

View File

@ -1,4 +1,4 @@
// Copyright (c) 2015 YamaArashi, 2021-2023 red031000
// Copyright (c) 2015 YamaArashi, 2021-2024 red031000
#ifndef GFX_H
#define GFX_H
@ -23,16 +23,37 @@ 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 tilesWidth, int bitDepth, int metatileWidth, int metatileHeight, struct Image *image, bool invertColors);
uint32_t ReadNtrImage(char *path, int tilesWidth, int bitDepth, int metatileWidth, int metatileHeight, struct Image *image, bool invertColors, bool scanFrontToBack);
void WriteImage(char *path, int numTiles, int bitDepth, int metatileWidth, int metatileHeight, struct Image *image, bool invertColors);
void WriteNtrImage(char *path, int numTiles, int bitDepth, int metatileWidth, int metatileHeight, struct Image *image,
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);

View File

@ -1,4 +1,4 @@
// Copyright (c) 2021-2023 red031000
// Copyright (c) 2021-2024 red031000
#include "global.h"
#include "cJSON.h"
@ -439,15 +439,13 @@ struct JsonToAnimationOptions *ParseNANRJson(char *path)
cJSON *resultType = cJSON_GetObjectItemCaseSensitive(animationResult, "resultType");
options->animationResults[i]->resultType = GetInt(resultType);
switch (options->animationResults[i]->resultType) {
case 0:
{ //index
case 0: { //index
cJSON *index = cJSON_GetObjectItemCaseSensitive(animationResult, "index");
options->animationResults[i]->index = GetInt(index);
break;
}
case 1:
{ //SRT
case 1: { //SRT
cJSON *index = cJSON_GetObjectItemCaseSensitive(animationResult, "index");
cJSON *rotation = cJSON_GetObjectItemCaseSensitive(animationResult, "rotation");
cJSON *scaleX = cJSON_GetObjectItemCaseSensitive(animationResult, "scaleX");
@ -464,8 +462,7 @@ struct JsonToAnimationOptions *ParseNANRJson(char *path)
break;
}
case 2:
{ //T
case 2: { //T
cJSON *index = cJSON_GetObjectItemCaseSensitive(animationResult, "index");
//cJSON *rotation = cJSON_GetObjectItemCaseSensitive(animationResult, "rotation");
cJSON *positionX = cJSON_GetObjectItemCaseSensitive(animationResult, "positionX");

View File

@ -1,4 +1,4 @@
// Copyright (c) 2021-2023 red031000
// Copyright (c) 2021-2024 red031000
#ifndef JSON_H
#define JSON_H

View File

@ -1,4 +1,4 @@
// Copyright (c) 2015 YamaArashi, 2021-2023 red031000
// Copyright (c) 2015 YamaArashi, 2021-2024 red031000
#include <ctype.h>
#include <stdio.h>
@ -37,7 +37,7 @@ void ConvertGbaToPng(char *inputPath, char *outputPath, struct GbaToPngOptions *
image.hasPalette = false;
}
ReadImage(inputPath, options->width, options->bitDepth, options->metatileWidth, options->metatileHeight, &image, !image.hasPalette);
ReadImage(inputPath, options->width, options->bitDepth, options->colsPerChunk, options->rowsPerChunk, &image, !image.hasPalette);
image.hasTransparency = options->hasTransparency;
@ -82,7 +82,7 @@ void ConvertNtrToPng(char *inputPath, char *outputPath, struct NtrToPngOptions *
image.hasPalette = false;
}
uint32_t key = ReadNtrImage(inputPath, options->width, 0, options->metatileWidth, options->metatileHeight, &image, !image.hasPalette, options->scanFrontToBack);
uint32_t key = ReadNtrImage(inputPath, options->width, 0, options->colsPerChunk, options->rowsPerChunk, &image, !image.hasPalette, options->scanFrontToBack);
if (key)
{
@ -111,7 +111,7 @@ void ConvertPngToGba(char *inputPath, char *outputPath, struct PngToGbaOptions *
ReadPng(inputPath, &image);
WriteImage(outputPath, options->numTiles, options->bitDepth, options->metatileWidth, options->metatileHeight, &image, !image.hasPalette);
WriteImage(outputPath, options->numTiles, options->bitDepth, options->colsPerChunk, options->rowsPerChunk, &image, !image.hasPalette);
FreeImage(&image);
}
@ -160,7 +160,7 @@ void ConvertPngToNtr(char *inputPath, char *outputPath, struct PngToNtrOptions *
free(string);
}
WriteNtrImage(outputPath, options->numTiles, image.bitDepth, options->metatileWidth, options->metatileHeight,
WriteNtrImage(outputPath, options->numTiles, image.bitDepth, options->colsPerChunk, options->rowsPerChunk,
&image, !image.hasPalette, options->clobberSize, options->byteOrder, options->version101,
options->sopc, options->vramTransfer, options->scanMode, options->mappingType, key, options->wrongSize);
@ -172,14 +172,14 @@ void HandleGbaToPngCommand(char *inputPath, char *outputPath, int argc, char **a
char *inputFileExtension = GetFileExtension(inputPath);
struct GbaToPngOptions options;
options.paletteFilePath = NULL;
if (isdigit(inputFileExtension[0]))
if (isdigit((unsigned char)inputFileExtension[0]))
options.bitDepth = inputFileExtension[0] - '0';
else
options.bitDepth = 4;
options.hasTransparency = false;
options.width = 1;
options.metatileWidth = 1;
options.metatileHeight = 1;
options.colsPerChunk = 1;
options.rowsPerChunk = 1;
for (int i = 3; i < argc; i++)
{
@ -211,31 +211,31 @@ void HandleGbaToPngCommand(char *inputPath, char *outputPath, int argc, char **a
if (options.width < 1)
FATAL_ERROR("Width must be positive.\n");
}
else if (strcmp(option, "-mwidth") == 0)
else if (strcmp(option, "-mwidth") == 0 || strcmp(option, "-cpc") == 0)
{
if (i + 1 >= argc)
FATAL_ERROR("No metatile width value following \"-mwidth\".\n");
FATAL_ERROR("No columns per chunk value following \"%s\".\n", option);
i++;
if (!ParseNumber(argv[i], NULL, 10, &options.metatileWidth))
FATAL_ERROR("Failed to parse metatile width.\n");
if (!ParseNumber(argv[i], NULL, 10, &options.colsPerChunk))
FATAL_ERROR("Failed to parse columns per chunk.\n");
if (options.metatileWidth < 1)
FATAL_ERROR("metatile width must be positive.\n");
if (options.colsPerChunk < 1)
FATAL_ERROR("columns per chunk must be positive.\n");
}
else if (strcmp(option, "-mheight") == 0)
else if (strcmp(option, "-mheight") == 0 || strcmp(option, "-rpc") == 0)
{
if (i + 1 >= argc)
FATAL_ERROR("No metatile height value following \"-mheight\".\n");
FATAL_ERROR("No rows per chunk value following \"%s\".\n", option);
i++;
if (!ParseNumber(argv[i], NULL, 10, &options.metatileHeight))
FATAL_ERROR("Failed to parse metatile height.\n");
if (!ParseNumber(argv[i], NULL, 10, &options.rowsPerChunk))
FATAL_ERROR("Failed to parse rows per chunk.\n");
if (options.metatileHeight < 1)
FATAL_ERROR("metatile height must be positive.\n");
if (options.rowsPerChunk < 1)
FATAL_ERROR("rows per chunk must be positive.\n");
}
else
{
@ -243,8 +243,8 @@ void HandleGbaToPngCommand(char *inputPath, char *outputPath, int argc, char **a
}
}
if (options.metatileWidth > options.width)
options.width = options.metatileWidth;
if (options.colsPerChunk > options.width)
options.width = options.colsPerChunk;
ConvertGbaToPng(inputPath, outputPath, &options);
}
@ -255,8 +255,8 @@ void HandleNtrToPngCommand(char *inputPath, char *outputPath, int argc, char **a
options.paletteFilePath = NULL;
options.hasTransparency = false;
options.width = 0;
options.metatileWidth = 1;
options.metatileHeight = 1;
options.colsPerChunk = 1;
options.rowsPerChunk = 1;
options.palIndex = 1;
options.scanFrontToBack = false;
options.handleEmpty = false;
@ -288,7 +288,7 @@ void HandleNtrToPngCommand(char *inputPath, char *outputPath, int argc, char **a
if (!ParseNumber(argv[i], NULL, 10, &options.palIndex))
FATAL_ERROR("Failed to parse palette index.\n");
if (options.width < 1)
if (options.palIndex < 1)
FATAL_ERROR("Palette index must be positive.\n");
}
else if (strcmp(option, "-width") == 0)
@ -304,31 +304,31 @@ void HandleNtrToPngCommand(char *inputPath, char *outputPath, int argc, char **a
if (options.width < 1)
FATAL_ERROR("Width must be positive.\n");
}
else if (strcmp(option, "-mwidth") == 0)
else if (strcmp(option, "-mwidth") == 0 || strcmp(option, "-cpc") == 0)
{
if (i + 1 >= argc)
FATAL_ERROR("No metatile width value following \"-mwidth\".\n");
FATAL_ERROR("No columns per chunk value following \"%s\".\n", option);
i++;
if (!ParseNumber(argv[i], NULL, 10, &options.metatileWidth))
FATAL_ERROR("Failed to parse metatile width.\n");
if (!ParseNumber(argv[i], NULL, 10, &options.colsPerChunk))
FATAL_ERROR("Failed to parse columns per chunk.\n");
if (options.metatileWidth < 1)
FATAL_ERROR("metatile width must be positive.\n");
if (options.colsPerChunk < 1)
FATAL_ERROR("columns per chunk must be positive.\n");
}
else if (strcmp(option, "-mheight") == 0)
else if (strcmp(option, "-mheight") == 0 || strcmp(option, "-rpc") == 0)
{
if (i + 1 >= argc)
FATAL_ERROR("No metatile height value following \"-mheight\".\n");
FATAL_ERROR("No rows per chunk value following \"%s\".\n", option);
i++;
if (!ParseNumber(argv[i], NULL, 10, &options.metatileHeight))
FATAL_ERROR("Failed to parse metatile height.\n");
if (!ParseNumber(argv[i], NULL, 10, &options.rowsPerChunk))
FATAL_ERROR("Failed to parse rows per chunk.\n");
if (options.metatileHeight < 1)
FATAL_ERROR("metatile height must be positive.\n");
if (options.rowsPerChunk < 1)
FATAL_ERROR("rows per chunk must be positive.\n");
}
else if (strcmp(option, "-scanfronttoback") == 0)
{
@ -344,8 +344,8 @@ void HandleNtrToPngCommand(char *inputPath, char *outputPath, int argc, char **a
}
}
if (options.width != 0 && options.metatileWidth > options.width)
options.width = options.metatileWidth;
if (options.width != 0 && options.colsPerChunk > options.width)
options.width = options.colsPerChunk;
ConvertNtrToPng(inputPath, outputPath, &options);
}
@ -361,8 +361,8 @@ void HandlePngToGbaCommand(char *inputPath, char *outputPath, int argc, char **a
struct PngToGbaOptions options;
options.numTiles = 0;
options.bitDepth = bitDepth;
options.metatileWidth = 1;
options.metatileHeight = 1;
options.colsPerChunk = 1;
options.rowsPerChunk = 1;
for (int i = 3; i < argc; i++)
{
@ -381,31 +381,31 @@ void HandlePngToGbaCommand(char *inputPath, char *outputPath, int argc, char **a
if (options.numTiles < 1)
FATAL_ERROR("Number of tiles must be positive.\n");
}
else if (strcmp(option, "-mwidth") == 0)
else if (strcmp(option, "-mwidth") == 0 || strcmp(option, "-cpc") == 0)
{
if (i + 1 >= argc)
FATAL_ERROR("No metatile width value following \"-mwidth\".\n");
FATAL_ERROR("No columns per chunk value following \"%s\".\n", option);
i++;
if (!ParseNumber(argv[i], NULL, 10, &options.metatileWidth))
FATAL_ERROR("Failed to parse metatile width.\n");
if (!ParseNumber(argv[i], NULL, 10, &options.colsPerChunk))
FATAL_ERROR("Failed to parse columns per chunk.\n");
if (options.metatileWidth < 1)
FATAL_ERROR("metatile width must be positive.\n");
if (options.colsPerChunk < 1)
FATAL_ERROR("columns per chunk must be positive.\n");
}
else if (strcmp(option, "-mheight") == 0)
else if (strcmp(option, "-mheight") == 0 || strcmp(option, "-rpc") == 0)
{
if (i + 1 >= argc)
FATAL_ERROR("No metatile height value following \"-mheight\".\n");
FATAL_ERROR("No rows per chunk value following \"%s\".\n", option);
i++;
if (!ParseNumber(argv[i], NULL, 10, &options.metatileHeight))
FATAL_ERROR("Failed to parse metatile height.\n");
if (!ParseNumber(argv[i], NULL, 10, &options.rowsPerChunk))
FATAL_ERROR("Failed to parse rows per chunk.\n");
if (options.metatileHeight < 1)
FATAL_ERROR("metatile height must be positive.\n");
if (options.rowsPerChunk < 1)
FATAL_ERROR("rows per chunk must be positive.\n");
}
else
{
@ -421,8 +421,8 @@ void HandlePngToNtrCommand(char *inputPath, char *outputPath, int argc, char **a
struct PngToNtrOptions options;
options.numTiles = 0;
options.bitDepth = 4;
options.metatileWidth = 1;
options.metatileHeight = 1;
options.colsPerChunk = 1;
options.rowsPerChunk = 1;
options.wrongSize = false;
options.clobberSize = false;
options.byteOrder = true;
@ -450,31 +450,31 @@ void HandlePngToNtrCommand(char *inputPath, char *outputPath, int argc, char **a
if (options.numTiles < 1)
FATAL_ERROR("Number of tiles must be positive.\n");
}
else if (strcmp(option, "-mwidth") == 0)
else if (strcmp(option, "-mwidth") == 0 || strcmp(option, "-cpc") == 0)
{
if (i + 1 >= argc)
FATAL_ERROR("No metatile width value following \"-mwidth\".\n");
FATAL_ERROR("No columns per chunk value following \"%s\".\n", option);
i++;
if (!ParseNumber(argv[i], NULL, 10, &options.metatileWidth))
FATAL_ERROR("Failed to parse metatile width.\n");
if (!ParseNumber(argv[i], NULL, 10, &options.colsPerChunk))
FATAL_ERROR("Failed to parse columns per chunk.\n");
if (options.metatileWidth < 1)
FATAL_ERROR("metatile width must be positive.\n");
if (options.colsPerChunk < 1)
FATAL_ERROR("columns per chunk must be positive.\n");
}
else if (strcmp(option, "-mheight") == 0)
else if (strcmp(option, "-mheight") == 0 || strcmp(option, "-rpc") == 0)
{
if (i + 1 >= argc)
FATAL_ERROR("No metatile height value following \"-mheight\".\n");
FATAL_ERROR("No rows per chunk value following \"%s\".\n", option);
i++;
if (!ParseNumber(argv[i], NULL, 10, &options.metatileHeight))
FATAL_ERROR("Failed to parse metatile height.\n");
if (!ParseNumber(argv[i], NULL, 10, &options.rowsPerChunk))
FATAL_ERROR("Failed to parse rows per chunk.\n");
if (options.metatileHeight < 1)
FATAL_ERROR("metatile height must be positive.\n");
if (options.rowsPerChunk < 1)
FATAL_ERROR("rows per chunk must be positive.\n");
}
else if (strcmp(option, "-bitdepth") == 0)
{
@ -609,7 +609,8 @@ void HandlePngToNtrPaletteCommand(char *inputPath, char *outputPath, int argc, c
if (compNum > 255)
FATAL_ERROR("Compression value must be 255 or below.\n");
}
else if (strcmp(option, "-pcmp") == 0) {
else if (strcmp(option, "-pcmp") == 0)
{
pcmp = true;
}
else
@ -764,7 +765,8 @@ void HandleJascToNtrPaletteCommand(char *inputPath, char *outputPath, int argc,
{
nopad = true;
}
else if (strcmp(option, "-pcmp") == 0) {
else if (strcmp(option, "-pcmp") == 0)
{
pcmp = true;
}
else

View File

@ -1,4 +1,4 @@
// Copyright (c) 2018 huderlem, 2021-2023 red031000
// Copyright (c) 2018 huderlem, 2021-2024 red031000
#ifndef OPTIONS_H
#define OPTIONS_H
@ -11,23 +11,23 @@ struct GbaToPngOptions {
int bitDepth;
bool hasTransparency;
int width;
int metatileWidth;
int metatileHeight;
int colsPerChunk;
int rowsPerChunk;
int palIndex;
};
struct PngToGbaOptions {
int numTiles;
int bitDepth;
int metatileWidth;
int metatileHeight;
int colsPerChunk;
int rowsPerChunk;
};
struct PngToNtrOptions {
int numTiles;
int bitDepth;
int metatileWidth;
int metatileHeight;
int colsPerChunk;
int rowsPerChunk;
bool clobberSize;
bool byteOrder;
bool version101;
@ -44,8 +44,8 @@ struct NtrToPngOptions {
int bitDepth;
bool hasTransparency;
int width;
int metatileWidth;
int metatileHeight;
int colsPerChunk;
int rowsPerChunk;
int palIndex;
bool scanFrontToBack;
bool handleEmpty;