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Acorn Sprite - Just Solve the File Format Problem

Acorn Sprite

From Just Solve the File Format Problem
Revision as of 17:08, 5 November 2013 by Jsummers (Talk | contribs)

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File Format
Name Acorn Sprite
Ontology
Extension(s) .acorn, others

Acorn Sprite (also known as RISC OS Sprite) files are the native format for graphics on RISC OS systems. Traditionally, sprites were used to store all kinds of images. Since they support colour depths up to 32 bits per pixel it is possible to use this format to record photorealistic images (for example, from digital cameras) in this format, but improved support for compressed image formats (JPEG, PNG) in RISC OS means that sprites are typically used to hold images for application icons and screen dumps.

Contents

Format

A Sprite file begins with a header. The first four bytes of it are the number of images in the file, and the next four are the size of the header (usually 16, but could be larger). The byte order is little-endian.

Identifiers

On RISC OS, Sprite files have a file type of ff9 (Sprite).

On other platforms, at least some applications use the filename extension .acorn, though it does not appear to be very common.

Software

Sample files

Links

Personal tools
Namespaces

Variants
Actions
Navigation
Toolbox

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