[Mesa-dev] [PATCH 0/7] Refactor uniform initializer handling
idr at freedesktop.org
Thu Apr 12 17:25:36 PDT 2012
This was a bit of follow-on work that I had wanted to do back when I
did all the other uniform rework. Setting the initial values for
uniforms (that have initializers in the GLSL code) is moved from
ir_to_mesa to the linker.
In addition, support for initializers on samplers is added. This
gives some small simplification in the ff_fragment_shader code. It
will also make re-working the ARB_fragment_program compiler to use
GLSL IR a bit easier. In the future, it may also be used to support
sampler "bindings" from GL_ARB_shading_language_420pack.
I would also like to eventually eliminate the extra indirection of
gl_shader_program::SamplerUnits and gl_program::TexturesUsed. That
code is intertwined with a bunch of other stuff, and it may have to
wait a bit.
The supplied unit tests hit most of the cases *except* structures. I
intend to add structure tests, but I want to wait until some of Eric's
ir_builder work lands. I suspect I'll end up extending that work to
make building structures a bit easier as well.
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