In addition to developing the famous Truevision Targa boards, Truevision Inc. also have come up with a specification for a high-end file format that will support images suitable for display on Targa hardware. The Targa format, or TGA, supports images of any dimensions with between 1 and 32 bits of color. While the Targa format originated with Truevision's hardware, it has migrated to many other applications. It's probably the most universally supported 24-bit file format for PC applications. Unlike TIFF, for example, it's subject to relatively few variations. Software that reads Targa files should be able to read all Targa files.
The default extension is TGA.
Supporting Platforms and Applications
This format is supported by numerous applications on a wide range of platforms.
The Targa file format recognizes over a dozen subfile formats, some of which are more widely used than others. We have chosen to only support the formats that are actually used for general image exchange, that is the formats specified in the official Truevision TGA File Format Specification, available from Truevision Inc. on request. PMView supports the following most popular versions of the Targa format: 1, 2, 3, 9, 10, and 11. Again, if PMView fails to load a file that you need, please contact us so we can try to support your file's format in our next release.
Supported Targa file subformats:
· 1 is uncompressed, color-mapped images with 16, 24, or 32-bit palette entries
· 2 is uncompressed RGB images with 15, 16, and 24-bit support
· 3 is uncompressed grayscale 8-bit (256 shades) support
· 9 is RLE color-mapped images with 16, 24, or 32-bit palette entries
· 10 is RLE RGB with 15, 16, and 24-bit support
· 11 is compressed grayscale 8-bit (256 shades) support
Supported Targa file descriptors:
· Image orientation: Top, Bottom, Left, Right
· Raster format:. Non-interlaced, 2-pass interlaced, 4-pass interlaced
Targa and TGA are registered trademarks of Truevision Inc.