Commit graph

1158 commits

Author SHA1 Message Date
Tapani Pälli
e40c5dab5e glsl/glcpp: initialize all fields of glcpp_parser_t on creation
this fixes some of the regressions with
	"ralloc: remove memset from ralloc_size"

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>
2016-10-31 11:53:38 +01:00
Juha-Pekka Heikkila
6770b17b99 glsl: Fix reading of uninitialized memory
Switch to use memory allocations which zero memory for places
where needed.

v2: modify and rebase on top of Marek's series (Tapani)

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>
2016-10-31 11:53:38 +01:00
Marek Olšák
f67c5a7ccd glsl: initialize glsl_struct_field properly
don't rely on ralloc doing memset

Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Tested-by: Edmondo Tommasina <edmondo.tommasina@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Kenneth Graunke <kenneth@whiteacpe.org>
2016-10-31 11:53:38 +01:00
Kenneth Graunke
e6aeeace69 glsl: Improve accuracy of alpha scaling in advanced blend lowering.
When blending with GL_COLORBURN_KHR and these colors:

   dst = <0.372549027, 0.372549027, 0.372549027, 0.372549027>
   src = <0.09375, 0.046875, 0.0, 0.375>

the normalized dst value became 0.99999994 (due to precision problems
in the floating point divide of rgb by alpha).  This caused the color
burn equation to fail the dst >= 1.0 comparison.  The blue channel would
then fall through to the dst < 1.0 && src >= 0 comparison, which was
true, since src.b == 0.  This produced a factor of 0.0 instead of 1.0.

This is an inherent numerical instability in the color burn and dodge
equations - depending on the precision of alpha scaling, the value can
be either 0.0 or 1.0.  Technically, GLSL floating point division doesn't
even guarantee that 0.372549027 / 0.372549027 = 1.0.  So arguably, the
CTS should allow either value.  I've filed a bug at Khronos for further
discussion (linked below).

In the meantime, this patch improves the precision of alpha scaling by
replacing the division with (rgb == alpha ? 1.0 : rgb / alpha).  We may
not need this long term, but for now, it fixes the following CTS tests:

ES31-CTS.blend_equation_advanced.blend_specific.GL_COLORBURN_KHR
ES31-CTS.blend_equation_advanced.blend_all.GL_COLORBURN_KHR_all_qualifier

Cc: currojerez@riseup.net
Cc: mesa-stable@lists.freedesktop.org
Bugzilla: https://cvs.khronos.org/bugzilla/show_bug.cgi?id=16042
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eduardo Lima Mitev <elima@igalia.com>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
2016-10-28 10:40:53 -07:00
Juan A. Suarez Romero
5d83820a1d glsl: inspect interfaces in contains_foo()
When checking if a type contains doubles, integers, samples, etc. we
check if the current type is a record or array, but not if it is an
interface.

This commit also inspects if the type is an interface.

It fixes spec/arb_enhanced_layouts/compiler/transform-feedback-layout-qualifiers/xfb_offset/invalid-block-with-double.vert
piglit test.

Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
2016-10-27 12:36:09 +02:00
Kenneth Graunke
173558445d glsl: Size TCS->TES unsized arrays to gl_MaxPatchVertices for queries.
SSO validation and other program interface queries want to see that
unsized (non-patch) TCS output/TES input arrays are implicitly sized
to gl_MaxPatchVertices.

By the time we create the program resource lists, we've sized the arrays
to their actual size.  (We try to create TCS output arrays to match the
output patch size right away, and at this point, we should have shrunk
TES input arrays.)  One option would be to keep them sized to
gl_MaxPatchVertices, and defer shrinking them.  But that's a big change,
and I don't think it's a good idea.

Instead, this patch introduces a new ir_variable flag which indicates
the variable is implicitly to gl_MaxPatchVertices.  Then, the linker
munges the types when creating the resource list, ignoring the size
in the IR's types.  Basically, lie about it for resource queries.
It's ugly, but I think it ought to work.

We probably could use var->data.implicit_sized_array for this, but
I opted for a separate bit to try and avoid convoluting the existing
SSBO handling.  They're similar in concept, but share none of the
same code...

Fixes:
ES31-CTS.core.tessellation_shader.single.xfb_captures_data_from_correct_stage
and the ES32-CTS and ESEXT-CTS variants.

v2: Add a comment (requested by Timothy, written by me).

Cc: mesa-stable@lists.freedesktop.org
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
2016-10-27 00:56:51 -07:00
Kenneth Graunke
34fd2ffed8 glsl: Pass ctx to program interface query helper functions.
The next commit will use this in add_shader_variable - this just
separates out some of the mechanical changes for easier review.

Cc: mesa-stable@lists.freedesktop.org
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
2016-10-27 00:56:34 -07:00
Rhys Kidd
5c73ecaac4 glsl: Add pthread libs to cache_test
Fixes the following compile error, present when the SHA1 library is libgcrypt:

  CCLD     glsl/tests/cache-test
glsl/.libs/libglsl.a(libmesautil_la-mesa-sha1.o): In function `call_once':
/mesa/src/util/../../include/c11/threads_posix.h:96: undefined reference to `pthread_once'

Signed-off-by: Rhys Kidd <rhyskidd@gmail.com>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
2016-10-27 09:49:35 +11:00
Erik Faye-Lund
aca491341b compiler: avoid warning about redefinition of PYTHON_GEN
PYTHON_GEN is defined to the exact same thing in both
Makefile.glsl.am and Makefile.nir.am. This makes automake complain,
so let's lift the definition up to Makefile.am, the same way as
MKDIR_GEN.

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Tested-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2016-10-26 14:54:26 +01:00
Emil Velikov
294b5f5f71 compiler: automake: add shader_info.h to the sources list
Otherwise it'll be missing from the tarball.

Fixes: 094fe3a959 ("nir: move nir_shader_info to a common compiler header")
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
2016-10-26 12:04:02 +01:00
Samuel Iglesias Gonsálvez
0e742926c6 glsl: update default precision qualifier when it is set in the shader
Default precision qualifier for a data type could be set several times
inside a shader. This patch allows to update the default precision
qualifier for the given type that is saved in the symbol table.

If it is not in the symbol table, just add it.

Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97804
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
2016-10-26 11:57:07 +02:00
Timothy Arceri
2e423ca147 nir: stop adjusting driver location for varying packing
As of 59864e8e02 we just use the location assigned by the front-end and
no longer need this for i965.

Since there were some issues in the logic with assigning arrays the same
driver location if they didn't start at the same location just remove it
and let other drivers implement a solution if needed when they add
ARB_enhanced_layouts support.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2016-10-26 14:29:36 +11:00
Timothy Arceri
4ac6686165 compiler: remove copy_shader_info()
This temporary helper is no longer needed now that we have finished
refactoring common shader metadata.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
9972c591e7 glsl: set uses texture gather directly in shader_info
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
4016f08854 glsl/st/mesa: use common system values read field
And set system values read directly in shader_info.

st/mesa changes where:
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
2f59f3eee5 glsl: set patch outputs written directly in shader_info
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
419de307dc glsl: set patch inputs read directly in shader_info
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
fdf42d3abc glsl: set outputs read directly in shader_info
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
5346630593 r200/glsl/st/mesa: use common outputs written field
And set outputs written directly in shader_info.

st/mesa changes where:
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
b4b450a5cb mesa/glsl: set double inputs read directly in shader_info
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
e81aaeba37 r200/i915/st/mesa/compiler: use common inputs read field
And set set inputs_read directly in shader_info.

To avoid regressions between changes this change is a squashed
version of the following patches.

st/mesa changes where:
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
dfcbdba471 mesa/compiler: copy early fragment tests to shader_info in _mesa_copy_linked_program_data()
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
3423488d55 st/mesa/r200/i915/i965: eliminate gl_fragment_program
Here we move OriginUpperLeft and PixelCenterInteger into gl_program
all other fields have been replace by shader_info.

V2: Don't use anonymous union/structs to hold vertex/fragment fields
suggested by Ian.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
17e28a1571 i965/mesa/st/swrast: set fs shader_info directly and switch to using it
Note we access shader_info from the program struct rather than the
nir_shader pointer because shader cache won't create a nir_shader.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
91d5b0eda9 mesa: remove now unused IsCentroid from gl_fragment_program
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
89512987c6 compiler: update the comment for enum glsl_interp_mode
We no longer store the interp mode with the program metadata.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
aa881e4dc0 glsl: remove now unused InterpQualifier
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
5a228c0aae mesa: set cs shader_info metadata directly
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
54095ed8b9 compiler: add additional cs metadata fields to shader info
And copy values from GLSL.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
9045ddcfe4 mesa: set gs shader_info metadata directly
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
b99ecaf872 compiler: add input primative field for gs in shader info
And copy the value from GLSL.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
65225c20c6 mesa: copy tes metadata directly to shared shader info
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
088c25bfb7 compiler: add fields for tes metadata to shader info
And copy the values from gl_tess_eval_program struct.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
750b14ed8e mesa: set tcs shader_info metadata directly
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
9d2b391165 glsl: add temporary copy_shader_info() function
This function is added here to ease refactoring towards using the new shared
shader_info. Once refactoring is complete and values are set directly it
will be removed.

We call it from _mesa_copy_linked_program_data() rather than glsl_to_nir()
so that the values will be set for all drivers. In order to do this some
calls need to be moved around so that we make sure to call
do_set_program_inouts() before _mesa_copy_linked_program_data()

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
debed12fdd glsl: add a shader info field to the gl_program type
And use this field as the source for shader info in the nir_shader
this will allow us to set some of these fields from GLSL directly.

It will also simplify restoring from shader cache and allow the
removal of duplicate fields from GLSL.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
e1af20f18a nir/i965/anv/radv/gallium: make shader info a pointer
When restoring something from shader cache we won't have and don't
want to create a nir_shader this change detaches the two.

There are other advantages such as being able to reuse the
shader info populated by GLSL IR.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Timothy Arceri
094fe3a959 nir: move nir_shader_info to a common compiler header
This will allow use to stop copying values between structs and
will also simplify handling handling these values in the shader cache.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-26 14:29:36 +11:00
Iago Toral Quiroga
537dce06ec glsl: add matrix layout information to interface block types
So far we have been checking that interface block definitions had matching
matrix layouts by comparing the definitions of their fields, however, this
does not cover the case where the interface blocks are defined with
mismatching matrix layouts but don't define any field with a matrix type.
In this case Mesa will not fail to link because none of the fields will
inherit the mismatching layout qualifier.

This patch fixes the problem in the same way we fixed it for packing layout
information: we add the the layout information to the interface type and then
we check it matches during the uniform block linking process.

v2: Fix unit tests so they pass the new parameter to
    glsl_type::get_interface_instance()

Fixes:
dEQP-GLES31.functional.shaders.linkage.uniform.block.layout_qualifier_mismatch_3

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98245
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com> (v1)
2016-10-24 15:49:53 +02:00
Timothy Arceri
6dbe8a1b9f glsl/mesa: remove unused namespace support from the symbol table
Namespace support seems to have been unused for a very long time.

Previously the hash table entry was never removed and the symbol name
wasn't freed until the symbol table was destroyed.

In theory this could reduced the number of times we need to copy a string
as duplicate names are reused. However in practice there is likely only a
limited number of symbols that are the same and this is likely to cause
other less than optimal behaviour such as the hash_table continuously
growing.

Along with dropping namespace support this change removes entries from
the hash table as they become unused.

Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
2016-10-24 21:40:39 +11:00
Samuel Iglesias Gonsálvez
b50b82b8a5 glsl/es31: precision qualifier doesn't need to match in shader interface block members
It is specific only to GLSL ES 3.1. From the spec, section 4.3.9
"Interface Blocks":

"Matched block names within a shader interface (as defined above) must
 match in terms of having the same number of declarations with the same
 sequence of types and the same sequence of member names, as well as
 having the same qualification as specified in section 9.2 (“Matching
 of Qualifiers“)."

But in GLSL ES 3.0 and 3.2, it is the opposite:

"Matched block names within a shader interface (as defined above) must
 match in terms of having the same number of declarations with the same
 sequence of types, precisions and the same sequence of member names,
 as well as having the matching member-wise layout qualification as
 defined in section 9.2 (“Matching of Qualifiers”)."

Fixes:

dEQP-GLES31.functional.shaders.linkage.uniform.block.differing_precision

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98243
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
2016-10-24 07:04:38 +02:00
Samuel Iglesias Gonsálvez
849390a61a glsl: move intrastage_match() after interstage_member_mismatch()
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
2016-10-24 07:04:32 +02:00
Iago Toral Quiroga
3da08e1664 glsl: Indirect array indexing on non-last SSBO member must fail compilation
After the changes in comit 5b2675093e, we moved this check to the
linker, but the spec expects this to be checked at compile-time. There are
dEQP tests that expect an error at compile time and the spec seems to confirm
that expectation:

"Except for the last declared member of a shader storage block (section 4.3.9
 “Interface Blocks”), the size of an array must be declared (explicitly sized)
 before it is indexed with anything other than an integral constant expression.
 The size of any array must be declared before passing it as an argument to a
 function. Violation of any of these rules result in compile-time errors. It
 is legal to declare an array without a size (unsized) and then later
 redeclare the same name as an array of the same type and specify a size, or
 index it only with integral constant expressions (implicitly sized)."

Commit 5b2675093e tries to take care of the case where we have implicitly
sized arrays in SSBOs and it does so by checking the max_array_access field
in ir_variable during linking. In this patch we change the approach: we look
for indirect access on SSBO arrays, and when we find one, we emit a
compile-time error if the accessed member is not the last in the SSBO
definition.

There is a corner case that the specs do not address directly though and that
dEQP checks for: the case of an unsized array in an SSBO definition that is
not defined last but is never used in the shader code either. The following
dEQP tests expect a compile-time error in this scenario:

dEQP-GLES31.functional.debug.negative_coverage.callbacks.shader.compile_compute_shader
dEQP-GLES31.functional.debug.negative_coverage.get_error.shader.compile_compute_shader
dEQP-GLES31.functional.debug.negative_coverage.log.shader.compile_compute_shader

However, since the unsized array is never used it is never indexed with a
non-constant expression, so by the spec quotation above, it should be valid and
the tests are probably incorrect.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
2016-10-20 08:26:51 +02:00
Ian Romanick
4d35683d91 nir: Optimize integer division and modulus with 1
The previous power-of-two rules didn't catch idiv (because i965 doesn't
set lower_idiv) and imod cases.  The udiv and umod cases should have
been caught, but I included them for orthogonality.

This fixes silly code observed from compute shaders with local_size_[xy]
= 1.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98299
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-10-19 14:25:10 -07:00
Ian Romanick
7c0c3740f0 glsl: Remove unused function import_prototypes
Once upon a time, this was used to extract prototypes from the shader
containing GLSL built-in functions.  This was removed by f5692f45 in
November 2010 for Mesa 7.10.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
2016-10-17 11:32:03 -07:00
Ian Romanick
5c025ea6fc glsl: Remove prototypes for nonexistent functions
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
2016-10-17 11:32:03 -07:00
Ian Romanick
fde48c1262 glsl: Replace assert with unreachable
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
2016-10-17 11:32:03 -07:00
Nicolai Hähnle
e0213f36bb glsl: print non-zero bindings of variables
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2016-10-17 19:09:33 +02:00
Iago Toral Quiroga
8785a8ff89 glsl: fail compilation of compute shaders when unsupported
Generally, we only check for the presence of compute shaders during
parsing when we find any language (like layout qualifiers) that are
specific to compute shaders, however, it is possible to define an
empty compute shader does not use any language specific to compute
shaders at all and we should fail the compilation anyway. dEQP checks
this.

This patch adds a check for compute shader availability after we have
parsed the source code. At this point we know the effective GLSL version
and also extensions enabled in the shader.

Fixes a subcase of the following dEQP tests:
dEQP-GLES31.functional.debug.negative_coverage.callbacks.shader.compile_compute_shader
dEQP-GLES31.functional.debug.negative_coverage.get_error.shader.compile_compute_shader
dEQP-GLES31.functional.debug.negative_coverage.log.shader.compile_compute_shader

The tests still fail because there is one more subcase that fails that needs
another fix.

Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
2016-10-17 15:14:12 +02:00
Kenneth Graunke
f30f48476f glsl: Disable textureOffset(sampler2DArrayShadow, ...) in GLSL ES.
This has apparently never existed in GLSL ES.

Fixes dEQP-GLES3.functional.shaders.texture_functions.invalid
.textureoffset_sampler2darrayshadow_vec4_ivec2_vertex and
.textureoffset_sampler2darrayshadow_vec4_ivec2_fragment

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98244
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
2016-10-16 15:05:00 -07:00