Instruction attributes like WriteALUResult and ALUResultCompare
were being discarded during the some of the local transformations.
This fixes the following piglit tests:
glsl1-inequality (vec2, pass)
loopfunc
fs-any-bvec2-using-if
fs-op-ne-bvec2-bvec2-using-if
fs-op-ne-ivec2-ivec2-using-if
fs-op-ne-mat2-mat2-using-if
fs-op-ne-vec2-vec2-using-if
fs-op-ne-mat2x3-mat2x3-using-if
fs-op-ne-mat2x4-mat2x4-using-if
https://bugs.freedesktop.org/show_bug.cgi?id=45921
NOTE: This is a candidate for the stable branches.
The loop registers weren't being cleared, so any shader that was
executed after a shader containing loops was at risk of having a loop
randomly inserted into it.
This fixes over one hundred piglit tests, although these test
only failed during full piglit runs and would pass if
run individually. The exact number of piglit tests that this patch
fixes will vary depending on the version of piglit and the order the
tests are run.
NOTE: This is a candidate for the stable branches.
Cuts 8/1068 instructions from glyphy's fragment shaders on i965.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
This lets us significantly shorten p->instructions->push_tail(ir), and
will be used in a few more places.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Now we can fold a bunch of our expression setup in ff_fragment_shader
into single-line, parseable commits.
v2: Make it actually work. I wasn't setting num_components in the
mask structure, and not setting up a mask structure is way easier.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Having to explicitly dereference is irritating and bloats the code,
when the compiler can detect and do the right thing.
v2: Use a little shim class to produce the automatic dereference
generation at compile time as opposed to runtime, while also
allowing compile-time type checking.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
The C++ constructors with placement new, while functional, are
extremely verbose, leading to generation of simple GLSL IR expressions
like (a * b + c * d) expanding to many lines of code and using lots of
temporary variables. By creating a new ir_builder.h that puts simple
generators in our namespace and taking advantage of ralloc_parent(),
we can generate much more compact code, at a minor runtime cost.
v2: Replace ir_instruction usage with just ir_rvalue.
v3: Drop remaining missed as_rvalue() in v2.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
The primary motivation for this rewrite was to have a maintainable driver
going forward, as nvfx was quite horrible in a lot of ways.
The driver is heavily based on the design of the nv50/nvc0 3d drivers we
already have, and uses the same common buffer/fence code. It also passes
a HEAP more piglit tests than nvfx did, supports a couple more features,
and a few more to come still probably.
The CPU footprint of this driver is far far less than nvfx, and translates
into far greater framerates in a lot of applications (unless you're using
a CPU that's way way newer than the GPUs of these generations....)
Basically, we once again have a maintained driver for these chipsets \o/
Feel free to report bugs now!
This driver hasn't been maintained properly for a very long time, and for
many very good reasons. It's horrible.
A new driver supporting these chipsets will appear with the commits that
port vieux/nv50/nvc0 to libdrm_nouveau-2.0.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
TEXTURED_TRIANGLE and MULTITEX_TRIANGLE are both a bit special in that if
you use any other graph object in the meantime they'll forget their state
and spew a lovely METHOD_CNT error at you when you try to draw.
The pre-newlib driver has a flush_notify() hook which does this state
re-emit, and a number of random workarounds like extra flushes and state
dirtying after various operations to solve this issue.
I'm taking a slightly different approach to things instead, which has the
nice side-effect of removing the divergent code-paths for ttri/mtri, the
flush/dirty workarounds and the need for flush_notify. Also gives a few
FPS boost in OA, yay.
This is just a function to tell if a certain blend mode requires dual sources.
v2: move to inlines as per Brian's suggestion
Signed-off-by: Dave Airlie <airlied@redhat.com>
This adds the blend mode mapping, it also uses the var->index in the
glsl to tgsi convertor - this is the other half of my using 4 in the GLSL
compiler.
Signed-off-by: Dave Airlie <airlied@redhat.com>
This adds index support to the GLSL compiler.
I'm not 100% sure of my approach here, esp without how output ordering
happens wrt location, index pairs, in the "mark" function.
Since current hw doesn't ever have a location > 0 with an index > 0,
we don't have to work out if the output ordering the hw requires is
location, index, location, index or location, location, index, index.
But we have no hw to know, so punt on it for now.
v2: index requires layout - catch and error
setup explicit index properly.
v3: drop idx_offset stuff, assume index follow location
Signed-off-by: Dave Airlie <airlied@redhat.com>
