SkyRoads Image Format
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SkyRoads Image Format
There is no example of an image in this format — upload one!
| Format type | Image |
|---|---|
| Hardware | VGA |
| Colour depth | 8-bit (VGA) |
| Minimum size (pixels) | 0×0 |
| Maximum size (pixels) | 65535×65535 |
| Palette | Internal |
| Plane count | 1 |
| Transparent pixels? | No |
| Hitmap pixels? | No |
| Games |
The SkyRoads Image Format is used by SkyRoads to store various game graphics. The image data is compressed, but the headers are not.
File format
Image files begin with this header.
| Data type | Name | Description |
|---|---|---|
| char[4] | palSig | Always "CMAP" |
| UINT8 | palCount | Number of palette entries |
| UINT8[palCount * 3] | palData | RGB palette data |
| UINT8[palCount * 2] | unkData | ! Additional unknown palette-related data |
| ! Sometimes there is a padding byte or two here? | ||
| char[4] | picSig | Always "PICT" |
| UINT16LE | unknown | Always 0 |
| UINT16LE | height | Height of the image, in pixels |
| UINT16LE | width | Width of the image, in pixels |
The compressed image data follows. After decompression with the SkyRoads compression algorithm, the data is 8bpp raw VGA data, one byte per pixel.
Credits
This file format was reverse engineered by Malvineous. If you find this information helpful in a project you're working on, please give credit where credit is due. (A link back to this wiki would be nice too!)