Age | Commit message (Collapse) | Author |
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Translate vertex shaders independently of fragment shaders.
Previously tried to make fragment shader semantic indexes always start
at zero and exclude holes. This was unnecessary but meant that vertex
shader translation had to be adjusted to take this into account.
Now use a fixed scheme for labelling special FS input semantics
(color, etc), and another fixed scheme for the generics.
With this, vertex shaders can be translated independently of the bound
fragment shader, assuming mesa has done its own job and ensured that
the vertex shader provides at least the inputs the fragment shader is
looking for. The state-tracker didn't attempt to do anything about
this previously, so it shouldn't be needed now.
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Before, we were sometimes rendering into a stale texture because
st_finalize_texture() would discard the old texture and create a new one.
Moved st_update_framebuffer atom after texture validation so that we
can create a new renderbuffer surface if the texture changes.
Also, split texture validation into two parts: finalize_textures and
update_textures. Do finalize_textures first to avoid getting into the
situtation where we're doing a pipe->surface_copy() mid-way through
state validation.
Some debug code still in place, but disabled...
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st_compare_func_to_pipe()
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proper linking.
Previously, programs were translated independently during validation.
The problem is the translation to TGSI format, which packs shader
input/outputs into continuous slots, depends on which vertex program is
being paired with which fragment shader. Now, we look at the outputs
of the vertex program in conjunction with the inputs of the fragment shader
to be sure the attributes match up correctly.
The new 'linked_program_pair' class keeps track of the associations
between vertex and fragment shaders. It's also the place where the TGSI
tokens are kept since they're no longer per-program state but per-linkage.
Still a few loose ends, like implementing some kind of hash/lookup table
for linked_program_pairs.
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state
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Converting depth and stencil objects into a single state object
(d3d10 like) and making it immutable.
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Not sure the generated program looks correct though...
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We should be able to render to any depth/format of X window now.
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softpipe/state_tracker --> state_tracker/
softpipe/ --> pipe/
softpipe/generic --> pipe/softpipe/
I don't think pipe is a great name, but I disliked all the others too.
Luckily it's fairly easy to rename with git, so this can be revisited
later.
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