Panoramic images

[Gorgorath]

I want to display panoramic images(dome pictures) in swt, but i can't find any good resources how to display them on a swt canvas, probable some sines, cosines should be involved. I know however how to display them in opengl, create sphere and texture map it, but opengl is restricted to 4096 * 4096 texturemaps, which i don't want


So What is the math behind displaying them,

Paul