color_table

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This extension provides a new 1-dimensional color lookup mechanism, providing the capability to perform lookups on 1 or more RGBA components.

• It is intended to replace PixelMap as it is extended to operate upon pixel data of an internal format (e.g. luminance or intensity).
  
  
• Lookups are provided at several stages in the imaging pipeline and are implemented in microcode on Impact, with programmable sizes (up to 8K entries).
  
  
• Tuning Tip:
  Minimize number and size of color tables activated to conserve GE cycles and limited ERAM.