framebuffer swap endianess
Angelo
s104259 at yahoo.it
Wed Jan 23 02:46:47 EST 2008
Hi, i'm angelo.
I have just create a framebuffer for an embedded system:
- powerpc (little endian) with a GPU (big endian).
I'm working on linux 2.6.22
When i try to execute Xfbdev, it starts but with wrong colors.
I need to swap the RGB format (RRRRRGGGGGGBBBBB) to BGR, respecting the endianess (GGGRRRRRBBBBBGGG).
I know that X loads with some ioctl, the principal settings through framebuffer.
But i'm not sure if framebuffer can inform it on the RGB format.
I also tried to change something on cmap, but nothing changes on display;
So, i hope you can help me.
Many thanks.
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