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* progs/tests: compile with SCons and glewKeith Whitwell2009-03-101-1/+2
| | | | Also get mingw cross-compilation of these tests working
* tests: test pseudo-XOR blend mode.Brian Paul2009-01-191-0/+196
GL_XOR logicop mode can be approximated with blending by computing 1 - dst. Here's a couple test programs for that.