Messages in this thread |  | | Date | Wed, 16 Aug 2017 21:17:45 -0400 (EDT) | From | Nicolas Pitre <> | Subject | RE: [PATCH 0/5] cramfs refresh for embedded usage |
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On Wed, 16 Aug 2017, Chris Brandt wrote:
> I made an example once were all the graphics were RAW and uncompressed > and marked as XIP in AXFS. The result was a large saving of RAM because > as the graphics framework (DirectFB) would copy directly from Flash > whenever it needed to do a background erase or image re-draw (button press > animations). > > Same went for playing MP3 files. The MP3 files were XIP in flash, so > mpg123 pulled from flash directly.
I wouldn't have expected mpg123 to mmap() its input files though. If you use read() and not mmap() then you don't get the full benefit.
Nicolas
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