(PC) Pickup Express .gti raw textures

[VituV2]

Can someone help me open some raw texture with some program that can open these textures and then import them into the game?

City.zip

[ikskoks]

Seems like it's a container for multiple images.
In this sample, first one is 16-bit, but I'm not sure about the pixel format. Second one is 32-bit RGBA.

File format looks like this:

 

// header
4 bytes (char) - signature // "GtIm"
4 bytes (uint32) - unknown  // 4
4 bytes (char) - chunk signature  // "CRC0"
4 bytes (uint32) - chunk size?  // 4
4 bytes (uint32) - CRC32 value?


// for each image (28-bytes header + x-bytes data)
   4 bytes (char) - chunk signature  // "Imag"
   4 bytes (uint32) - chunk size?
   4 bytes (uint32) - unknown  // 4 or 8
   4 bytes (uint32) - image width
   4 bytes (uint32) - image height
   4 bytes (uint32) - number of palette entries
   4 bytes (uint32) - unknown  // 1
   x bytes - palette data
   x bytes - image data

It could be repacked probably with a little tinkering, but you would need to recalculate CRC checksum for new data (or write a tool that does it automatically).