Unfortunately the ftcache.c locks up the compiler for my target. (it just hangs, no warnings or errors), so I am not caching the rendered bitmaps at the moment. This is an option if I write my on cache or 'fix' the included one, but it obviously won't speed the first rendering. The depth of the cache I can have and available memory are not necessarily constant, so the subsequent renderings are questionalble. I would also like something deterministic if I could get it. I am considering pre-rendering to eprom at compile time, then copying the results without rendering on the target.
Ed -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Wenlin Institute Sent: Friday, November 10, 2006 10:21 AM To: [email protected] Subject: Re: [ft] Speed/Quality adjustments Are you caching the bitmaps produced by freetype? If not, that's probably the best way to make it faster. Tom On Nov 10, 2006, at 7:45 AM, Riede.Edward wrote: > I have been investigating embedding freetype into one of our > platforms, and it looks great, but runs really slow. I was > wondering if there are any adjustments that I could make to the > engine to speed it up a bit? The rendering times on our platform > are unbearably slow. I would like a speed improvement of about > x32. (I know it is a lot to ask.) > > > > I am thinking about changing the sub pixel resolution. Our > platform only displays in 16 bit color, so it seems to me that the > 64x64 sub-pixel’s/pixel could be reduced. 64x64 would give 4096 > units/pixel. I would think that this could be reduced to 32 units/ > pixel for the 5 bit component, or 96 units/pixel for lcd > rendering. 32 units per pixel would need a 5x5, and 96 would need > a 10 x 10. > > > > It seems like this could give me the speed improvements that I > need. Is this possible? > > > > > > Ed > > > > > > _______________________________________________ > Freetype mailing list > [email protected] > http://lists.nongnu.org/mailman/listinfo/freetype 文林 Wenlin Institute, Inc. Software for Learning Chinese E-mail: [EMAIL PROTECTED] Web: http://www.wenlin.com Telephone: 1-877-4-WENLIN (1-877-493-6546) ☯ _______________________________________________ Freetype mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/freetype
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