I have not been able to look at the Galloc code yet (unable to reach
site). But, my two dollarcents:
On Sun, 11 Mar 2001, Christoph Egger wrote:
> 1. Does X support hardware-buffers like z-, alpha-, stencil- or
> texture-buffer? Or does X just support raw-buffers, which are either
> emulated by the X-server or directly in VRAM?
According to OpenGL specs, it must be possible to get individual buffers
out of XFree 4.X. (OpenGL must be able to get them, why not GGI) Never
actually tried anything like it, will try to find this out.
IIRC, Xfree 3 is harder to do
> 2. How can I check reliable, _if_ there is one more cursor available?
> Or can I always assume, that there is one more available?
AFAIK it is only available at allocation time: a BadAlloc RETVAL means
unable to allocate cursor space. There is no HowMuchFreeSpaceLeft() call
or something.
> 3. Should I use XCreateGlyphCursor() or XCreateFontCursor() to create
> a cursor, that response to the keyboard instead to the mouse?
Good point. In my first opinion, I'd say none of them. Use
XCreatePixmapCursor() instead. Why ? I can imagine games want their
complete own implementation of a keyboard-cursor, and with GlyphCursor
they would be too limited in options.
But the question was: Glyph or Font. I'd say Glyph then, eventually with a
shape to char conversion system. Reason: greater flexability in font and
colours. IMHO forcing the user to use the X Cursor font could never be the
goal of a flexible lib like this.
> 4. When a buffer is stored on disk, should I emulate MMIO -access by
> using mmap() or should I use filedescriptors?
Question not understood. I think a disk-buffer should be implemented like
fd=fopen ('mydir/mybuf.fer');
buf=mmap (...fd...);
using a filedescriptor AND mmap
Jos
