CyberGraphics vs BitPlanes on slower configs

[VladR]

I'm trying to figure out what's the slowest config where my current incarnation of my flatshader engine will run. On WinUAE, I am using 68040 config.

Libs used are:graphics, CyberGraphics, Intuition, Dos

I'm using CGX basically just to open the video mode and display the framebuffer via WritePixelArray ()

I just checked the CGX docs and it appears that the lowest possible bitdepth is 8 (I was hoping for 4, but alas - not), which means 256 colors, which would imply AGA - am I correct here ? I am not sure which CPU is the slowest for AGA, but am guessing ~68020 ?


Let's say I would internally adjust the rendering to my framebuffer to 16 colors only with minimal changes. How would I go about making it run on OCS ? graphics.library also has a function WritePixelArray (), so as long as I open the screen properly, it should [in theory] convert my 4-bit framebuffer into the bitplanes on OCS, correct ?

I suspect graphics.library won't be anywhere near as fast as a dedicated optimized C2P function - but how slow is it in reality compared to C2P ?

Worst case scenario, I could write my own C2P...