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* Test if we're dithering already before turning it on. (No functional change ↵Michael Drake2013-10-281-6/+14
| | | | atm, but when bitmap tiling is moved into nsfb, error diffusion will be able to cross tile boundaries.)
* Fix error text.Michael Drake2012-09-281-1/+1
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* Add error diffusion to palette based rendering. Only used for bitmap and ↵Michael Drake2012-09-281-20/+49
| | | | scaled bitmap plots. Doesn't do serpentine path, since that would need changes to the common bitmap rendering code.
* Fix horizontal scroll of internal text. Simplify and optimise internal text ↵Michael Drake2012-07-271-17/+15
| | | | renderer.
* Tiny simplification of freetype glyph renderer.Michael Drake2012-07-261-7/+4
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* Don't add top clipping to bottom clipping. Fixes internal font rendering.Michael Drake2012-07-261-7/+4
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* Fix 8bpp glyph rendering when the target framebuffer is 16bppJohn Mark Bell2011-03-291-1/+1
| | | | svn path=/trunk/libnsfb/; revision=12145
* make some of the plot code commonVincent Sanders2010-07-091-0/+494
svn path=/trunk/libnsfb/; revision=10618