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Update tcb-convert with new information about the header format. Turns out it's just a modified TIM2 header!

This commit is contained in:
Wesley Castro 2018-08-11 17:52:33 -07:00
parent 6475db22e9
commit 7e7aec1095
1 changed files with 29 additions and 15 deletions
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44
tcb-convert.c
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@ -6,22 +6,36 @@
#include "lodepng/lodepng.h"
#include "pngquant/libimagequant.h"
// This is a modified TIM2 image data header
// Reference: http://wiki.xentax.com/index.php/TM2_TIM2
typedef struct tcbHeader {
// 0x00
char magic[4];
char padding[12];
// 0x10
uint32_t totalLength;
uint32_t paletteLength;
uint32_t dataLength;
uint32_t unk3;
uint32_t imageDataLength;
uint16_t headerLength;
uint16_t numPaletteEntries;
// 0x20
uint16_t unk4;
uint16_t imageType;
uint8_t imageType;
uint8_t numMipmaps;
uint8_t paletteType;
uint8_t bitsPerPixel;
uint16_t width;
uint16_t height;
uint8_t extra[0x28];
uint64_t gsTEX0;
// 0x30
uint64_t gsTEX1;
uint32_t gsRegs;
uint32_t gsTexClut;
// 0x40
uint8_t userData[16];
} tcbHeader_t;
typedef struct rgbaImageData {
@ -190,7 +204,7 @@ int tcb_to_rgba(uint8_t *tcbData, int tcbLength, rgbaImageData_t *imageData)
header = (tcbHeader_t*) tcbData;
image = (uint8_t*) (tcbData + 0x50);
palette = (uint32_t*) (tcbData + header->dataLength + 0x50);
palette = (uint32_t*) (tcbData + header->imageDataLength + 0x50);
if(strncmp(header->magic, "TCB\0", 4))
{
@ -216,7 +230,7 @@ int tcb_to_rgba(uint8_t *tcbData, int tcbLength, rgbaImageData_t *imageData)
palette = newPalette;
}
if(header->imageType == 0x05) // 8bpp
if(header->paletteType == 0x05) // 8bpp
{
for(int i = 0; i < (header->width * header->height); i++)
{
@ -229,7 +243,7 @@ int tcb_to_rgba(uint8_t *tcbData, int tcbLength, rgbaImageData_t *imageData)
imageData->rgba[i] = palette[index] | (alpha << 24); // 255 alpha channel
}
}
else if(header->imageType == 0x04) // 4bpp
else if(header->paletteType == 0x04) // 4bpp
{
for(int i = 0; i < (header->width * header->height); i++)
{
@ -276,7 +290,7 @@ int rgba_to_tcb(uint8_t *tcbData, int tcbLength, rgbaImageData_t *imageData)
header = (tcbHeader_t*) tcbData;
image = (uint8_t*) (tcbData + 0x50);
palette = (uint32_t*) (tcbData + header->dataLength + 0x50);
palette = (uint32_t*) (tcbData + header->imageDataLength + 0x50);
if(header->width != imageData->width || header->height != imageData->height)
{
@ -285,13 +299,13 @@ int rgba_to_tcb(uint8_t *tcbData, int tcbLength, rgbaImageData_t *imageData)
}
liq_attr *attr = liq_attr_create();
if(header->imageType == 0x04) // 4-bit color
if(header->paletteType == 0x04) // 4-bit color
{
liq_set_max_colors(attr, 16);
}
else if(header->imageType != 0x05)
else if(header->paletteType != 0x05)
{
printf("Unsupported image type 0x%02X.\n", header->imageType);
printf("Unsupported image type 0x%02X.\n", header->paletteType);
return EXIT_FAILURE;
}
@ -299,11 +313,11 @@ int rgba_to_tcb(uint8_t *tcbData, int tcbLength, rgbaImageData_t *imageData)
liq_image *imagel = liq_image_create_rgba(attr, imageData->rgba, imageData->width, imageData->height, 0);
liq_result *res = liq_quantize_image(attr, imagel);
if(header->imageType == 0x05)
if(header->paletteType == 0x05)
{
liq_write_remapped_image(res, imagel, image, imageData->height * imageData->width);
}
else if (header->imageType == 0x04) // 4-bit color
else if (header->paletteType == 0x04) // 4-bit color
{
uint8_t *fulldata = malloc(imageData->width * imageData->height);
liq_write_remapped_image(res, imagel, (uint32_t *)fulldata, imageData->width * imageData->height);
@ -331,7 +345,7 @@ int rgba_to_tcb(uint8_t *tcbData, int tcbLength, rgbaImageData_t *imageData)
alpha = (alpha >> 1) + 1; // scale down to 0-128 range
}
if(header->imageType == 0x05) // Filter palette data
if(header->paletteType == 0x05) // Filter palette data
{
uint32_t *filtered = malloc(256 * 4);
palette_filter((uint32_t *) palette, filtered, 256);