The copper was the Amiga's co-processor that specifically took contents of video ram and put it onto the physical screen as a raster beam, and whilst doing so could process instructions to change the lookup of where it is reading data from, and also change palette colors, specify hardware sprites, etc, in realtime. That's not really the same thing as today's `GPU` which although it takes contents of video ram and display it, does not really do any alterations to that data during the display process, it only alters the data first in video ram and outputs to video ram, ready for the rest of the system to take the image and put it onto the display. So in that sense, the GPU is more like a highly glorified blitter. But hey. :-)
To do a copper colorbar effect I recommend just drawing a bunch of rects one pixel high in different colors.
Dreamora, where and how do you get the pointer to the backbuffer frame data?
To do a copper colorbar effect I recommend just drawing a bunch of rects one pixel high in different colors.
Dreamora, where and how do you get the pointer to the backbuffer frame data?