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Fixes 6 piglit tests about stencil operations.
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Matches pre-gen6, and fixes glsl-vs-large-uniform-array.
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Fixes piglit user-clip, and compiz desktop switching when dragging a
window and using just 2 desktops. Bug #30446.
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This fixes some insanity that would otherwise be required for GLSL
1.30 bit ops or gen6 integer uniform operations in general, at the
cost of upload-time pain. Given that we only have that pain because
mesa's mangling our integer uniforms to be floats, this something that
should be fixed outside of the shader codegen.
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The assumption is that all stages are the same program or that
varyings are passed between stages using built-in varyings.
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First, it changes autoconf to use a "python2" binary when available,
rather than plain "python" (which is ambiguous). Secondly, it changes
the Makefiles to use $(PYTHON) $(PYTHON_FLAGS) rather than calling
python directly.
Signed-off-by: Xavier Chantry <chantry.xavier@gmail.com>
Signed-off-by: Matthew William Cox <matt@mattcox.ca>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
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This is a port of 603741a86df0e43c0b52e8c202a35c7fe2fc1d9c
to r100.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
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Avoids GPU hang on glsl-fs-convolution-1.
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I'm trying to clamp to a minimum of 1 URB row, not a maximum of 1.
Fixes:
glsl-kwin-blur
glsl-max-varying
glsl-routing
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Fixes glsl-fs-uniform-array-5.
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This was slightly confused because gen6_wm_constants does the push
constant buffer, while brw_wm_constants does pull constants.
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It's a little more painful than before because we don't have the handy
mask register any more, and have to make do with cooking up a value
out of the flag register.
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This doesn't appear to help any testcases I'm looking at, but it looks
like it's required.
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This is apparently required, as the thread will be initiated while it
still has dependencies, and this is what waits for those to be
resolved before writing color.
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Fixes glsl-fs-uniform-array-5, but not 6 which fails in ir_to_mesa.
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This makes it a lot easier to track down where we failed when some
code emit triggers an assert. Plus, less memory allocation for
codegen.
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Fixes glsl-fs-convolution-2, which was blowing up due to the array
access insanity getting at the uniform values within the loop. Each
temporary was considered live across the whole loop.
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One, it was allocating increments of 1kb, but per thread scratch space
is a power of two. Two, the new FS wasn't getting total_scratch set
at all, so everyone thought they had 1kb and writes beyond 1kb would
go stomping on a neighbor thread.
With this plus the previous register spilling for the new FS,
glsl-fs-convolution-1 passes.
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g0 is used by others, and is expected to be left exactly as it was
dispatched to us. So manually move g0 into our message reg when
spilling/unspilling and update the offset in the MRF. Fixes failures
in texture sampling after having spilled a register.
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It can be tested with if (0) replaced with if (1) to force spilling for all
virtual GRFs. Some simple tests work, but large texturing tests fail.
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It's amazing this code worked. Basically, we would get lucky in
register allocation and the tests using frontfacing would happen to
allocate gl_FrontFacing storage and the instructions generating
gl_FrontFacing but pointing at another register to the same hardware
register. Noticed during register spilling debug, when suddenly they
didn't get allocatd the same storage.
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"Everyone else" does it this way, so follow suit. It's fewer
instructions, anyway.
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I don't think this should matter, but I'm not sure, and it's
recommended by a kernel checker in fulsim.
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This should reduce the cost of generating shadow maps, for example.
No performance difference measured in nexuiz, though it does trigger
this path.
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These were for debugging in bringup. Now that relatively complicated
apps are working, they haven't helped debug anything in quite a while.
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This fixes hangs in some Z-writes-in-shaders tests, though other
pieces don't come out correctly.
Bug #30392: hang in fbo-fblit-d24s8. (still fails with bad color drawn
to some targets)
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rc_get_readers_normal() supplies a list of readers for a given
instruction. This function is now being used by the copy propagate
optimization and will eventually be used by most other optimization
passes as well.
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It is possible for a single pair instruction arg to select from both an
RGB and an Alpha source.
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Fixes glean/bufferObject.
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