Hello! The GL_ARB_shading_language_420pack allows qualifiers to be specified in a flexible order, which is nice now that there are so many different qualifiers. Yet, we still need to support the old language semantics which enforce a particular ordering as well.
Previously, we handled the ordering requirements using the GLSL 1.50 grammar rules. This obviously can't handle the flexible ordering, so so I had to rewrite the grammar to allow qualifiers in any order, then add C code to enforce the pre-4.20 ordering restrictions. No regressions observed on Piglit or ES3, though we need a bunch more tests. A few extra are in the 'qualifiers' branch of ~kwg/piglit, though I believe Matt is writing more. I'm hoping to land this before Thursday. With one more tiny feature, we can enable 420pack for 9.2... Please review...sooner rather than later :) The series is available as the 'qualifiers' branch of ~kwg/mesa; if applying from the mailing list, apply these first: glsl: Silence the last shift/reduce conflict warning in the grammar. glsl: Fail the build if the grammar contains shift/reduce errors. glsl: Fix absurd whitespace conventions in the parser. --Ken _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
