diff options
Diffstat (limited to 'tools/nitrogfx/gfx.c')
| -rw-r--r-- | tools/nitrogfx/gfx.c | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/tools/nitrogfx/gfx.c b/tools/nitrogfx/gfx.c index f927deed..8a10efe2 100644 --- a/tools/nitrogfx/gfx.c +++ b/tools/nitrogfx/gfx.c @@ -322,6 +322,39 @@ void ReadGbaPalette(char *path, struct Palette *palette) free(data); } +void ReadNtrPalette(char *path, struct Palette *palette) +{ + int fileSize; + unsigned char *data = ReadWholeFile(path, &fileSize); + + uint32_t magicNumber = (data[3] << 24) | (data[2] << 16) | (data[1] << 8) | data[0]; + if (magicNumber != 0x4E434C52 && magicNumber != 0x4E435052) //NCLR / NCPR + FATAL_ERROR("Not a valid NCLR or NCPR palette file. Magic number (%x).\n", magicNumber); + + unsigned char *paletteHeader = data + 0x10; + + magicNumber = (paletteHeader[3] << 24) | (paletteHeader[2] << 16) | (paletteHeader[1] << 8) | paletteHeader[0]; + if (magicNumber != 0x504C5454) //PLTT + FATAL_ERROR("No valid PLTT file after NCLR header. Magic number (%x).\n", magicNumber); + + if ((fileSize - 0x28) % 2 != 0) + FATAL_ERROR("The file size (%d) is not a multiple of 2.\n", fileSize); + + palette->numColors = (fileSize - 0x28) / 2; //remove header and divide by 2 + + unsigned char *paletteData = paletteHeader + 0x18; + + for (int i = 0; i < palette->numColors; i++) + { + uint16_t paletteEntry = (paletteData[i * 2 + 1] << 8) | paletteData[i * 2]; + palette->colors[i].red = UPCONVERT_BIT_DEPTH(GET_GBA_PAL_RED(paletteEntry)); + palette->colors[i].green = UPCONVERT_BIT_DEPTH(GET_GBA_PAL_GREEN(paletteEntry)); + palette->colors[i].blue = UPCONVERT_BIT_DEPTH(GET_GBA_PAL_BLUE(paletteEntry)); + } + + free(data); +} + void WriteGbaPalette(char *path, struct Palette *palette) { FILE *fp = fopen(path, "wb"); @@ -342,3 +375,129 @@ void WriteGbaPalette(char *path, struct Palette *palette) fclose(fp); } + +void WriteNtrNCLRPalette(char *path, struct Palette *palette) +{ + FILE *fp = fopen(path, "wb"); + + if (fp == NULL) + FATAL_ERROR("Failed too open \"%s\" for writing.\n", path); + + uint32_t size = palette->numColors * 2; + uint32_t extSize = size + 0x18; + + //NCLR header + WriteGenericNtrHeader(fp, "RLCN", extSize, true); + + //PLTT header + //magic number + fputs("TTLP", fp); + + //section size + fputc(extSize & 0xFF, fp); + fputc((extSize >> 8) & 0xFF, fp); + fputc((extSize >> 16) & 0xFF, fp); + fputc((extSize >> 24) & 0xFF, fp); + + //bit depth + char bitDepth = palette->bitDepth == 4 ? 0x03: 0x04; + fputc(bitDepth, fp); + fputc(0x00, fp); + fputc(0x00, fp); + fputc(0x00, fp); + + //padding + fputc(0x00, fp); + fputc(0x00, fp); + fputc(0x00, fp); + fputc(0x00, fp); + + //size + fputc(size & 0xFF, fp); + fputc((size >> 8) & 0xFF, fp); + fputc((size >> 16) & 0xFF, fp); + fputc((size >> 24) & 0xFF, fp); + + //colours per palette + fputc(0x10, fp); + fputc(0x00, fp); + fputc(0x00, fp); + fputc(0x00, fp); + + //palette data + for (int i = 0; i < palette->numColors; 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); + + uint16_t paletteEntry = SET_GBA_PAL(red, green, blue); + + fputc(paletteEntry & 0xFF, fp); + fputc(paletteEntry >> 8, fp); + } + + fclose(fp); +} + +void WriteNtrNCPRPalette(char *path, struct Palette *palette) +{ + FILE *fp = fopen(path, "wb"); + + if (fp == NULL) + FATAL_ERROR("Failed too open \"%s\" for writing.\n", path); + + uint32_t size = palette->numColors * 2; + uint32_t extSize = size + 0x10; + + //NCLR header + WriteGenericNtrHeader(fp, "RPCN", extSize, false); + + //PLTT header + //magic number + fputs("TTLP", fp); + + //section size + fputc(extSize & 0xFF, fp); + fputc((extSize >> 8) & 0xFF, fp); + fputc((extSize >> 16) & 0xFF, fp); + fputc((extSize >> 24) & 0xFF, fp); + + //bit depth + char bitDepth = palette->bitDepth == 4 ? 0x03: 0x04; + fputc(bitDepth, fp); + fputc(0x00, fp); + fputc(0x00, fp); + fputc(0x00, fp); + + //padding + fputc(0x00, fp); + fputc(0x00, fp); + fputc(0x00, fp); + fputc(0x00, fp); + + //size + fputc(size & 0xFF, fp); + fputc((size >> 8) & 0xFF, fp); + fputc((size >> 16) & 0xFF, fp); + fputc((size >> 24) & 0xFF, fp); + + //colours per palette + fputc(0x10, fp); + fputc(0x00, fp); + fputc(0x00, fp); + fputc(0x00, fp); + + //palette data + for (int i = 0; i < palette->numColors; 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); + + uint16_t paletteEntry = SET_GBA_PAL(red, green, blue); + + fputc(paletteEntry & 0xFF, fp); + fputc(paletteEntry >> 8, fp); + } + + fclose(fp); +} |