nanogui: Bogl changes & Nano-X-0.5
Subject:
RE: Bogl changes & Nano-X-0.5
From:
Alex Holden ####@####.####
Date:
18 May 1999 23:34:40 -0000
Message-Id: <Pine.LNX.4.04.9905190019240.16616-100000@hyperspace>
On Tue, 18 May 1999, Greg Haerr wrote:
> No, it is far too slow to draw everything twice, once in main, then in graphics ram. In
I don't know if there is a way to specify the write mode with the
framebuffer drivers, but if there isn't then the best way is to use a
buffer.
> addition, you'd never know what's been modified. However, the bitblt operations you
That depends on how you implement it.
> speak of are solved with a rearchitecture of the driver model I spoke of in an earlier
> mail msg. This involved allowing all graphics operations to be performed on a "bitmap",
That's a seperate issue to the drawing modes.
> Please copy the readpixel routine into your new driver. Readpixel is required
> for demo.c program to run, as well as the ReadArea api, as well as the cursor drawing.
I never suggested not having a readpixel() routine.
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