tschak909 wrote:Sorry, Not feasible, since I am drawing color.
calimero wrote:What version of NVDI does support offscreen bitmaps?
Is NVDI free? You could simple add NVDI.PRG to you Application .zip (distribution)
ThorstenOtto wrote:calimero wrote:Is NVDI free? You could simple add NVDI.PRG to you Application .zip (distribution)
No, its not free, that's why it might be a bad idea to add it to the archive.
jfl wrote:But there's also ENHANCER.PRG,which implements offscreen bitmaps and maybe other NVDI features
tschak909 wrote:Sorry, guys. I tried this, early on in development, if I add in an explicit requirement for NVDI, that pushes memory requirements to the point where a 1MB ST won't work.
jfl wrote:I think it's supposed to be used only under TOS. My limited tests under MiNT weren't convincing but that's a long time ago.
mfro wrote:tschak909 wrote:[…] Using this (and the device specific VDI raster copy functions), you can draw into your own offscreen buffer (device specific format) and blit the result to the screen.
Beware that this covers all the basic Atari screen modes, but will not work on e.g. graphics cards of PC offspring that use linear framebuffer palette modes (like 256 colour VGA) and other "exotic" hardware (linear framebuffer palette modes should be trivial to implement, however).
tschak909 wrote:Assuming I were to peel away the AES bits and just make this a TOS application, what's the correct method to initialize the display, and finally to hand it back to GEM?
tschak909 wrote:(For the record, I am having none of these issues with any of the other ports, including the Amiga. GEM is an unbelievable pain in the arse.)
tschak909 wrote:I'm already noticing that even with debugging the redraw issues, the performance eaten by attempting to maintain the screen queue is enough to make the modem miss incoming data. This is even in 25mhz on a TT030.
tschak909 wrote:I'm already noticing that even with debugging the redraw issues, the performance eaten by attempting to maintain the screen queue is enough to make the modem miss incoming data. T
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