With the generous cooperation of the original authors, Thomas Klein, Magnus Strengert and Thomas Ertl, we have received the source code to the glslDevil ( http://www.vis.uni-stuttgart.de/glsldevil/ ) GLSL source level debugger.
I have uploaded the source as I received it with no modifications, to GitHub: https://github.com/XenonofArcticus/GLSL-Debugger
We have not yet even tried to build it. As it exists now, on Windows it requires the Microsoft Detours ( http://research.microsoft.com/en-us/projects/detours/ ). The 32-bit version of Detours is available for download under a license whose suitability for glslDevil is somewhat indeterminate to us. The 64-bit version of Detours is only available by commercial license ($10,000USD), which is why no 64-bit Windows version of glslDevil was ever produced.
On Linux, no additional tools should be required.
Hitherto, no OSX version of glslDevil has been produced.
Long-term goals include:
Replace Windows Detours dependency with apiTrace ( https://github.com/apitrace/apitrace ), glIntercept ( https://code.google.com/p/glintercept/ ) or EasyHook ( http://easyhook.codeplex.com/ ).
Improve GLSL language grammar support to incorporate newer dialects including switch/case.
Support OpenGL contexts for newer versions of OpenGL.
We are looking for people who have an interest in this tool’s capability to bring this project back to life and move it forward, so get in touch, check out the code, try it out, fix some things and push some changes!