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nitrogfx NCGR support

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This commit is contained in:
red031000
2020-06-22 18:34:26 +01:00
parent c9a26fd84f
commit 49a400ceeb
5 changed files with 244 additions and 10 deletions
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2
tools/nitrogfx/convert_png.c
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@@ -162,6 +162,8 @@ void ReadPngPalette(char *path, struct Palette *palette)
palette->colors[i].blue = colors[i].blue;
}
palette->bitDepth = png_get_bit_depth(png_ptr, info_ptr);
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
fclose(fp);

120
tools/nitrogfx/gfx.c
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@@ -359,6 +359,98 @@ 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, bool invertColors, bool clobberSize, bool byteOrder)
{
FILE *fp = fopen(path, "wb");
if (fp == NULL)
FATAL_ERROR("Failed to open \"%s\" for writing.\n", path);
int tileSize = bitDepth * 8;
if (image->width % 8 != 0)
FATAL_ERROR("The width in pixels (%d) isn't a multiple of 8.\n", image->width);
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;
if (tilesWidth % metatileWidth != 0)
FATAL_ERROR("The width in tiles (%d) isn't a multiple of the specified metatile width (%d)", tilesWidth, metatileWidth);
if (tilesHeight % metatileHeight != 0)
FATAL_ERROR("The height in tiles (%d) isn't a multiple of the specified metatile height (%d)", tilesHeight, metatileHeight);
int maxNumTiles = tilesWidth * tilesHeight;
if (numTiles == 0)
numTiles = maxNumTiles;
else if (numTiles > maxNumTiles)
FATAL_ERROR("The specified number of tiles (%d) is greater than the maximum possible value (%d).\n", numTiles, maxNumTiles);
int bufferSize = numTiles * tileSize;
unsigned char *pixelBuffer = malloc(bufferSize);
if (pixelBuffer == NULL)
FATAL_ERROR("Failed to allocate memory for pixels.\n");
int metatilesWide = tilesWidth / metatileWidth;
switch (bitDepth) {
case 4:
ConvertToTiles4Bpp(image->pixels, pixelBuffer, numTiles, metatilesWide, metatileWidth, metatileHeight, invertColors);
break;
case 8:
ConvertToTiles8Bpp(image->pixels, pixelBuffer, numTiles, metatilesWide, metatileWidth, metatileHeight, invertColors);
break;
}
WriteGenericNtrHeader(fp, "RGCN", bufferSize + 0x20, byteOrder);
unsigned char charHeader[0x20] = { 0x52, 0x41, 0x48, 0x43, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x18, 0x00, 0x00, 0x00 };
charHeader[4] = (bufferSize + 0x20) & 0xFF;
charHeader[5] = ((bufferSize + 0x20) >> 8) & 0xFF;
charHeader[6] = ((bufferSize + 0x20) >> 16) & 0xFF;
charHeader[7] = ((bufferSize + 0x20) >> 24) & 0xFF;
if (!clobberSize)
{
charHeader[8] = numTiles & 0xFF;
charHeader[9] = (numTiles >> 8) & 0xFF;
charHeader[10] = tileSize & 0xFF;
charHeader[11] = (tileSize >> 8) & 0xFF;
}
else
{
charHeader[8] = 0xFF;
charHeader[9] = 0xFF;
charHeader[10] = 0xFF;
charHeader[11] = 0xFF;
charHeader[16] = 0x10; //seems to be set when size is clobbered
}
charHeader[12] = bitDepth == 4 ? 3 : 4;
charHeader[24] = bufferSize & 0xFF;
charHeader[25] = (bufferSize >> 8) & 0xFF;
charHeader[26] = (bufferSize >> 16) & 0xFF;
charHeader[27] = (bufferSize >> 24) & 0xFF;
fwrite(charHeader, 1, 0x20, fp);
fwrite(pixelBuffer, 1, bufferSize, fp);
free(pixelBuffer);
fclose(fp);
}
void FreeImage(struct Image *image)
{
free(image->pixels);
@@ -450,7 +542,7 @@ void WriteNtrPalette(char *path, struct Palette *palette, bool ncpr)
if (fp == NULL)
FATAL_ERROR("Failed to open \"%s\" for writing.\n", path);
uint32_t size = palette->numColors * 2;
uint32_t size = 256 * 2; //todo check if there's a better way to detect :/
uint32_t extSize = size + (ncpr ? 0x10 : 0x18);
//NCLR header
@@ -481,21 +573,29 @@ void WriteNtrPalette(char *path, struct Palette *palette, bool ncpr)
fwrite(palHeader, 1, 0x18, fp);
unsigned char colours[palette->numColors * 2];
unsigned char colours[256 * 2];
//palette data
for (int i = 0; i < palette->numColors; i++)
for (int i = 0; i < 256; i++)
{
unsigned char red = DOWNCONVERT_BIT_DEPTH(palette->colors[i].red);
unsigned char green = DOWNCONVERT_BIT_DEPTH(palette->colors[i].green);
unsigned char blue = DOWNCONVERT_BIT_DEPTH(palette->colors[i].blue);
if (i < palette->numColors)
{
unsigned char red = DOWNCONVERT_BIT_DEPTH(palette->colors[i].red);
unsigned char green = DOWNCONVERT_BIT_DEPTH(palette->colors[i].green);
unsigned char blue = DOWNCONVERT_BIT_DEPTH(palette->colors[i].blue);
uint16_t paletteEntry = SET_GBA_PAL(red, green, blue);
uint16_t paletteEntry = SET_GBA_PAL(red, green, blue);
colours[i * 2] = paletteEntry & 0xFF;
colours[i * 2 + 1] = paletteEntry >> 8;
colours[i * 2] = paletteEntry & 0xFF;
colours[i * 2 + 1] = paletteEntry >> 8;
}
else
{
colours[i * 2] = 0x00;
colours[i * 2 + 1] = 0x00;
}
}
fwrite(colours, 1, palette->numColors * 2, fp);
fwrite(colours, 1, 256 * 2, fp);
fclose(fp);
}

1
tools/nitrogfx/gfx.h
View File

@@ -31,6 +31,7 @@ struct Image {
void ReadImage(char *path, int tilesWidth, int bitDepth, int metatileWidth, int metatileHeight, struct Image *image, bool invertColors);
void ReadNtrImage(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 WriteNtrImage(char *path, int numTiles, int bitDepth, int metatileWidth, int metatileHeight, struct Image *image, bool invertColors, bool clobberSize, bool byteOrder);
void FreeImage(struct Image *image);
void ReadGbaPalette(char *path, struct Palette *palette);
void ReadNtrPalette(char *path, struct Palette *palette);

121
tools/nitrogfx/main.c
View File

@@ -80,6 +80,19 @@ void ConvertPngToGba(char *inputPath, char *outputPath, struct PngToGbaOptions *
FreeImage(&image);
}
void ConvertPngToNtr(char *inputPath, char *outputPath, struct PngToNtrOptions *options)
{
struct Image image;
image.bitDepth = options->bitDepth;
ReadPng(inputPath, &image);
WriteNtrImage(outputPath, options->numTiles, options->bitDepth, options->metatileWidth, options->metatileHeight, &image, !image.hasPalette, options->clobberSize, options->byteOrder);
FreeImage(&image);
}
void HandleGbaToPngCommand(char *inputPath, char *outputPath, int argc, char **argv)
{
char *inputFileExtension = GetFileExtension(inputPath);
@@ -298,6 +311,89 @@ void HandlePngToGbaCommand(char *inputPath, char *outputPath, int argc, char **a
ConvertPngToGba(inputPath, outputPath, &options);
}
void HandlePngToNtrCommand(char *inputPath, char *outputPath, int argc, char **argv)
{
struct PngToNtrOptions options;
options.numTiles = 0;
options.bitDepth = 4;
options.metatileWidth = 1;
options.metatileHeight = 1;
options.clobberSize = false;
options.byteOrder = true;
for (int i = 3; i < argc; i++)
{
char *option = argv[i];
if (strcmp(option, "-num_tiles") == 0)
{
if (i + 1 >= argc)
FATAL_ERROR("No number of tiles following \"-num_tiles\".\n");
i++;
if (!ParseNumber(argv[i], NULL, 10, &options.numTiles))
FATAL_ERROR("Failed to parse number of tiles.\n");
if (options.numTiles < 1)
FATAL_ERROR("Number of tiles must be positive.\n");
}
else if (strcmp(option, "-mwidth") == 0)
{
if (i + 1 >= argc)
FATAL_ERROR("No metatile width value following \"-mwidth\".\n");
i++;
if (!ParseNumber(argv[i], NULL, 10, &options.metatileWidth))
FATAL_ERROR("Failed to parse metatile width.\n");
if (options.metatileWidth < 1)
FATAL_ERROR("metatile width must be positive.\n");
}
else if (strcmp(option, "-mheight") == 0)
{
if (i + 1 >= argc)
FATAL_ERROR("No metatile height value following \"-mheight\".\n");
i++;
if (!ParseNumber(argv[i], NULL, 10, &options.metatileHeight))
FATAL_ERROR("Failed to parse metatile height.\n");
if (options.metatileHeight < 1)
FATAL_ERROR("metatile height must be positive.\n");
}
else if (strcmp(option, "-bitdepth") == 0)
{
if (i + 1 >= argc)
FATAL_ERROR("No bitdepth value following \"-bitdepth\".\n");
i++;
if (!ParseNumber(argv[i], NULL, 10, &options.bitDepth))
FATAL_ERROR("Failed to parse bitdepth.\n");
if (options.bitDepth != 4 && options.bitDepth != 8)
FATAL_ERROR("bitdepth must be either 4 or 8.\n");
}
else if (strcmp(option, "-clobbersize") == 0)
{
options.clobberSize = true;
}
else if (strcmp(option, "-nobyteorder") == 0)
{
options.byteOrder = false;
}
else
{
FATAL_ERROR("Unrecognized option \"%s\".\n", option);
}
}
ConvertPngToNtr(inputPath, outputPath, &options);
}
void HandlePngToGbaPaletteCommand(char *inputPath, char *outputPath, int argc UNUSED, char **argv UNUSED)
{
struct Palette palette;
@@ -306,6 +402,29 @@ void HandlePngToGbaPaletteCommand(char *inputPath, char *outputPath, int argc UN
WriteGbaPalette(outputPath, &palette);
}
void HandlePngToNtrPaletteCommand(char *inputPath, char *outputPath, int argc, char **argv)
{
struct Palette palette;
bool ncpr = false;
for (int i = 3; i < argc; i++)
{
char *option = argv[i];
if (strcmp(option, "-ncpr") == 0)
{
ncpr = true;
}
else
{
FATAL_ERROR("Unrecognized option \"%s\".\n", option);
}
}
ReadPngPalette(inputPath, &palette);
WriteNtrPalette(outputPath, &palette, ncpr);
}
void HandleGbaToJascPaletteCommand(char *inputPath, char *outputPath, int argc UNUSED, char **argv UNUSED)
{
struct Palette palette;
@@ -645,7 +764,9 @@ int main(int argc, char **argv)
{ "png", "1bpp", HandlePngToGbaCommand },
{ "png", "4bpp", HandlePngToGbaCommand },
{ "png", "8bpp", HandlePngToGbaCommand },
{ "png", "NCGR", HandlePngToNtrCommand },
{ "png", "gbapal", HandlePngToGbaPaletteCommand },
{ "png", "NCLR", HandlePngToNtrPaletteCommand },
{ "gbapal", "pal", HandleGbaToJascPaletteCommand },
{ "NCLR", "pal", HandleNtrToJascPaletteCommand },
{ "NCPR", "pal", HandleNtrToJascPaletteCommand },

10
tools/nitrogfx/options.h
View File

@@ -21,4 +21,14 @@ struct PngToGbaOptions {
int metatileHeight;
};
struct PngToNtrOptions {
int numTiles;
int bitDepth;
int metatileWidth;
int metatileHeight;
bool clobberSize;
bool byteOrder;
};
#endif // OPTIONS_H