Misc Code

OpenGL Back Buffer

If you want your low-resolution software rendering to fill the screen on a variety of different platforms, some of which don't have direct hardware framebuffer access APIs, what do you do?

The answer embodied in this C++ class and demo driver is to use OpenGL hardware to do a screen-filling stretched blit of a software framebuffer. It works by downloading the framebuffer to a GL texture and then drawing a quad that fits neatly into the current viewport with it.

• Source Code