Dan Sandberg wrote:
Just curious...
Are you using an OpenGL directdraw surface for the graphics emulation
in Qemu?
If not, then consider the benefits:
1. It is much faster than any native graphics 2D/3D primitives like
Windows GDI
2: It gives full control over things like window or fullscreen mode in
any (almost) resolution and color depth.
3. It is operating system independent.
4. It handles things like RGB, BGR, 24bit, 15bit, 16bit, 8bit, alpha
channel etc in hardware, all you have to do is select the pixelformat
you like to use for the buffer and OpenGL does the rest - lightning
fast, minimum CPU-load.
My own feeling is that a smarter thing to do is to pass the VGA ops to
another program to actually do the rendering. I think a GUI that used
VNC to interact with QEmu would be a very good start. localhost VNC
performance seems good enough to me that this should be a reasonable
approach.
Hardware scaling would, perhaps, be a useful feature of using OpenGL.
Unfortunately, OpenGL is not available enough widely to make this
practical in my mind. I'd rather devote the same effort to fast
software scaling (via SIMD instructions).
Regards,
Anthony Liguori
My suggestion would be to write a frontend similar to VMware's for
Qemu in Lazarus. Why Lazarus?
1. The fantastic GLscene is available for Lazarus making
OpenGL-programming easy. Try: http://www.skinhat.com/3dpack/
2. With Lazarus a RAD graphic frontend based on OpenGL can be made and
directly compileable for most operating systems without need for
modifications.
Hope someone likes the idea, otherwise I will have to do it myself if
I can find some spare time.
Dan
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