graphics/cgif 0.5.0 DragonFly

CGIF is a fast and lightweight GIF encoder that can create GIF animations and images. Summary of the main features:

• user-defined global or local color-palette with up to 256 colors (limit of the GIF format)
• size-optimizations for GIF animations:
  • option to set a pixel to transparent if it has identical color in the previous frame (transparency optimization)
  • do encoding just for the rectangular area that differs from the previous frame (width/height optimization)
• fast: a GIF with 256 colors and 1024x1024 pixels can be created in below 50 ms even on a minimalistic system
• MIT license (permissive)
• different options for GIF animations: static image, N repetitions, infinite repetitions
• additional source-code for verifying the encoder after making changes
• user-defined delay time from one frame to the next (can be set independently for each frame)
• source-code conforms to the C99 standard