Commit graph

42 commits

Author SHA1 Message Date
Rob Herring
ada3c3aa3d glsl: Fix gl_shader_stage enum unsigned comparison
Replace -1 with MESA_SHADER_NONE enum value to fix sign related warning:

external/mesa3d/src/compiler/glsl/link_varyings.cpp:1415:25: warning: comparison of constant -1 with expression of type 'gl_shader_stage' is always true [-Wtautological-constant-out-of-range-compare]
        (consumer_stage != -1 && consumer_stage != MESA_SHADER_FRAGMENT))) {
         ~~~~~~~~~~~~~~ ^  ~~

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2017-06-08 07:26:04 -05:00
Samuel Pitoiset
8a6ecde9c1 glsl: store the image format in glsl_struct_field
ARB_bindless_texture allows to declare image types inside
structures, which means we need to keep track of the format.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
2017-05-08 16:04:05 +02:00
Samuel Pitoiset
a5f82db380 glsl: rename image_* qualifiers to memory_*
It doesn't make sense to prefix them with 'image' because
they are called "Memory Qualifiers" and they can be applied
to members of storage buffer blocks.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Andres Gomez <agomez@igalia.com>
2017-05-04 09:51:25 +02:00
Nicolai Hähnle
b5711d5e1a glsl: add gl_SubGroup*ARB builtins
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2017-04-05 15:25:56 +02:00
Samuel Pitoiset
de2727925a glsl: add has_shader_image_load_store()
Preliminary work for ARB_bindless_texture which can interact
with ARB_shader_image_load_store.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
2017-02-27 19:33:10 +01:00
Anuj Phogat
5e2909e732 mesa: Add EXT_frag_depth bits and enable it on all drivers
Passes the newly added piglit test for this extension on i965.

V2: Fix comments by Ilia.

Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
2017-02-13 16:08:40 -08:00
Matt Turner
d7a0486a9e glsl: Allow compatibility shaders with MESA_GL_VERSION_OVERRIDE=...
Previously if you used MESA_GL_VERSION_OVERRIDE=3.3COMPAT, Mesa exposed
an OpenGL 3.3 compatibility profile context (with various unimplemented
features and bugs), but still refused to compile shaders with

   #version 330 compatibility

This patch simply adds a small bit of plumbing to let that through.

Of course the same caveats apply: compatibility profile is still not
supported (and will not be supported), so there are no guarantees that
anything will work.

Tested-by: Dylan Baker <dylan@pnwbakers.com>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2017-02-09 15:14:43 +00:00
Ian Romanick
aa38bf1e59 glsl: Move builtin_function related prototypes to a separate file
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2017-01-20 15:41:23 -08:00
Kenneth Graunke
a46bd79ee1 glsl: Support gl_TessLevelInner/Outer[] as TES input variables.
Upcoming reworks in i965 are going to make it easy to handle this
like any other input.  Having it as a system value will just require
additional code for no benefit.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
2017-01-06 15:55:41 -08:00
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
Samuel Pitoiset
48de9aaa72 glsl: add gl_LocalGroupSizeARB as a system value
v2: - only add it if the ext is enabled (Ilia)

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
2016-10-07 00:18:57 +02:00
Ilia Mirkin
70aef97f9e glsl: add OES_viewport_array enables and use them to expose gl_ViewportIndex
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
2016-09-22 20:42:30 -04:00
Dylan Baker
d4bf9baa43 mesa: Implement ARB_shader_viewport_layer_array for i965
This extension is a combination of AMD_vertex_shader_viewport_index and
AMD_vertex_shader_layer, making it rather trivial to implement.

For gallium I *think* this needs a new cap because of the addition of
support in tessellation evaluation shaders, and since I don't have any
hardware to test it on, I've left that for someone else to wire up.

Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2016-09-20 16:23:04 -07:00
Ilia Mirkin
64a69059ce glsl: expose max atomic counter/buffer consts for tess in ES 3.2
Curiously OES/EXT_tessellation_shader leave these out, while ES 3.2 adds
them in.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2016-09-03 00:26:36 -04:00
Ilia Mirkin
891d7e3c9e glsl: add gl_BoundingBox and associated varying slots
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2016-08-30 20:25:15 -04:00
Francisco Jerez
965934f38a glsl: Fix incorrect hard-coded location of the gl_SecondaryFragColorEXT built-in.
gl_SecondaryFragColorEXT should have the same location as gl_FragColor
for the secondary fragment color to be replicated to all fragment
outputs.  The incorrect location of gl_SecondaryFragColorEXT would
cause the linker to mark both FRAG_RESULT_COLOR and FRAG_RESULT_DATA0
as being written to, which isn't allowed by the spec and would
ultimately lead to an assertion failure in
fs_visitor::emit_fb_writes() on my i965-fb-fetch branch.

This should also fix the code below for multiple dual-source-blended
render targets, which no driver currently supports but we have plans
to enable eventually in the i965 driver (the comment saying that no
hardware will ever support it seems rather hilarious).

Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
2016-08-30 16:54:19 -07:00
Ian Romanick
3a0ae7b55c glsl: Allow gl_InvocationID and gl_Layer with GL_OES_geometry_shader
Fixes

dEQP-GLES31.functional.geometry_shading.layered.fragment_layer_2d_array
dEQP-GLES31.functional.geometry_shading.layered.fragment_layer_2d_multisample_array
dEQP-GLES31.functional.geometry_shading.layered.fragment_layer_3d
dEQP-GLES31.functional.geometry_shading.layered.fragment_layer_cubemap

v2: Don't enable gl_ViewportIndex in GLSL ES 3.20.  Noticed by Ilia.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2016-08-26 15:03:14 -07:00
Ian Romanick
1a72fbf9e6 mesa: Allow GL_EXT_geometry_shader and GL_EXT_geometry_point_size
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2016-08-26 15:03:14 -07:00
Francisco Jerez
6b33eab959 glsl: Define a gl_LastFragData built-in for older GLSL versions.
The EXT_shader_framebuffer_fetch extension defines alternative
language for GLES2 shaders where user-defined fragment outputs are not
allowed.  Instead of using inout user-defined fragment outputs the
shader is expected to read from the gl_LastFragData built-in array.
In addition this allows using the same language on desktop GLSL
versions prior to 4.2 that support the deprecated gl_FragData built-in
in preparation for the MESA_shader_framebuffer_fetch desktop GL
extension.

Both legacy and user-defined inout outputs have a common
representation at the GLSL IR level, so it shouldn't make any
difference for optimization passes and back-ends whether the
application is using gl_LastFragData or user-defined outputs, all
they'll see is a variable dereference of a fragment output at a
certain interface location with the fb_fetch_output bit set to one.

v2: Don't define the built-in variable on GLSL versions for which
    gl_FragData exists but is deprecated. (Ken)

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2016-08-24 13:28:31 -07:00
Kenneth Graunke
0eaa84e8af glsl: Expose gl_PointSize if OES/EXT_tessellation_point_size is enabled.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2016-08-08 09:59:03 -07:00
Kenneth Graunke
d0642c52fc glsl: Add a has_tessellation_shader() helper.
Similar to has_geometry_shader(), has_compute_shader(), and so on.
This will make it easier to add more conditions here later.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
2016-08-07 23:47:55 -07:00
Kenneth Graunke
ac1181ffbe compiler: Rename INTERP_QUALIFIER_* to INTERP_MODE_*.
Likewise, rename the enum type to glsl_interp_mode.

Beyond the GLSL front-end, talking about "interpolation modes" seems
more natural than "interpolation qualifiers" - in the IR, we're removed
from how exactly the source language specifies how to interpolate an
input.  Also, SPIR-V calls these "decorations" rather than "qualifiers".

Generated by:
$ find . -regextype egrep -regex '.*\.(c|cpp|h)' -type f -exec sed -i \
  -e 's/INTERP_QUALIFIER_/INTERP_MODE_/g' \
  -e 's/glsl_interp_qualifier/glsl_interp_mode/g' {} \;

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Acked-by: Dave Airlie <airlied@redhat.com>
2016-07-17 19:26:48 -07:00
Timothy Arceri
47f8381730 glsl: pass symbols rather than shader to _mesa_get_main_function_signature()
This will allow us to split gl_shader into two different structs, one for
shader objects and one for linked shaders.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
2016-06-30 16:51:25 +10:00
Kenneth Graunke
2b867264d2 glsl: Optionally lower TCS gl_PatchVerticesIn to a uniform.
i965 has no special hardware for this, so the best way to implement
this is to pass it in via a uniform.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Cc: mesa-stable@lists.freedesktop.org
2016-06-15 12:47:37 -07:00
Eduardo Lima Mitev
a93bb2e33f glsl/builtin_variables: Populate MaxCombinedShaderStorageBlocks on GLSL 4.40
Built-in variable "MaxCombinedShaderStorageBlocks" was added to GLSL 4.40
revision 9.

Section "1.2.1 Changes since revision 8 of GLSL version 4.40",
page 3 of the PDF states:

    "Bug 11734: Add gl_MaxCombinedShaderOutputResources and mark
    gl_MaxCombinedImageUnitsAndFragmentOutputs  as deprecated."

Fixes: GL44-CTS.shader_image_load_store.basic-glsl-const

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2016-06-14 10:21:26 +02:00
Jordan Justen
7b9def3583 glsl: Add glsl LowerCsDerivedVariables option
v2:
 * Move lower flag to context constants. (Ken)

Cc: "12.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> (v1)
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-06-01 19:29:02 -07:00
Dave Airlie
0ebf4257a3 glsl: define some GLES3 constants in GLSL 4.1
The GLSL 4.1 spec adds:
gl_MaxVertexUniformVectors
gl_MaxFragmentUniformVectors
gl_MaxVaryingVectors

This fixes:
GL45-CTS.gtf31.GL3Tests.uniform_buffer_object.uniform_buffer_object_build_in_constants

Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "12.0 11.2" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-06-01 17:01:13 +10:00
Ilia Mirkin
601a5195eb glsl: add GL_EXT_clip_cull_distance define, add helpers
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Tobias Klausmann <tobias.johannes.klausmann@mni.thm.de>
2016-05-25 09:50:07 -04:00
Ilia Mirkin
979bcb9f42 glsl: add EXT_clip_cull_distance support based on ARB_cull_distance
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Dave Airlie <airlied@redhat.com>
2016-05-23 22:22:06 -04:00
Tobias Klausmann
d656736bbf glsl: Add arb_cull_distance support (v3)
v2: make too large array a compile error
v3: squash mesa/prog patch to avoid static compiler errors in bisect

Signed-off-by: Tobias Klausmann <tobias.johannes.klausmann@mni.thm.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
2016-05-14 08:28:08 +10:00
Rob Clark
0e5a369879 glsl: export accessor for builtin-uniform descriptors
We'll need this for a nir pass to lower builtin-uniform access.

Signed-off-by: Rob Clark <robclark@freedesktop.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2016-05-11 12:20:12 -04:00
Ilia Mirkin
9abbc49712 glsl: add ARB_ES3_1_compatibility support
Oddly a bunch of the features it adds are actually from ESSL 3.20. But
the spec is quite clear, oh well.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Dave Airlie <airlied@redhat.com>
2016-04-03 18:01:15 -04:00
Ilia Mirkin
5283e81015 glsl: add GL_OES_sample_variables support
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2016-03-30 22:57:17 -04:00
Ilia Mirkin
903640c2ac glsl: add gl_MaxSamples, new in GL 4.5 / GL ES 3.2
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2016-03-30 22:57:17 -04:00
Timothy Arceri
04d2f770c8 glsl: add field to track if xfb_buffer is an explicit or implicit value
Since any of the xfb_* qualifiers trigger the shader to be in
transform feedback mode we need an extra field to track if
the xfb_buffer on interface members was set explicitly since
xfb_buffer will always have a default value.

Reviewed-by: Dave Airlie <airlied@redhat.com>
2016-03-31 12:50:29 +11:00
Timothy Arceri
733f1b2a55 glsl: add xfb_* qualifiers to glsl_struct_field
These will be used to hold qualifier values for interface and
struct members.

Support is added to the struct/interface constructors to copy these
fields upon creation.

We also update record_compare() to ensure we don't reuse a glsl_type
with the wrong xfb_* qualifier values.

Reviewed-by: Dave Airlie <airlied@redhat.com>
2016-03-31 12:50:19 +11:00
Timothy Arceri
52caeee7e7 glsl: add transform feedback built-in constants
These are new built-ins added by ARB_enhanced_layouts.

Reviewed-by: Dave Airlie <airlied@redhat.com>
2016-03-31 12:49:51 +11:00
Timothy Arceri
9f24f42c49 glsl: add offset to glsl interface type
In this patch we also copy the offset value from the ast and
implement offset linking rules by adding it to the record_compare()
function.

From Section 4.4.5 (Uniform and Shader Storage Block Layout Qualifiers)
of the GLSL 4.50 spec:

   "Two blocks linked together in the same program with the same block
   name must have the exact same set of members qualified with
   offset and their integral-constant-expression values must be the
   same, or a link-time error results."

Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
2016-03-05 19:38:34 +11:00
Ilia Mirkin
f2547883cf mesa: make compute maximums reflect driver-provided values
Looks like the various max's were never plumbed through.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2016-02-13 15:51:17 +01:00
Ilia Mirkin
2b089c7ffe glsl: always initialize image_* fields, copy them on interface init
Interfaces can have image properties set in case they are buffer
interfaces. Make sure not to lose this information.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2016-01-29 21:04:56 -05:00
Ilia Mirkin
38c63abf09 glsl: add GL_OES_geometry_point_size and conditionalize gl_PointSize
For now this will be enabled in tandem with GL_OES_geometry_shader.
Should a driver come along that wants to separate them out, another
enable can be added.

Also adds the missed GL_OES_geometry_shader define in glcpp.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Marta Lofstedt <marta.lofstedt@intel.com>
2016-01-26 12:36:15 -05:00
Emil Velikov
eb63640c1d glsl: move to compiler/
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Acked-by: Matt Turner <mattst88@gmail.com>
Acked-by: Jose Fonseca <jfonseca@vmware.com>
2016-01-26 16:08:33 +00:00
Renamed from src/glsl/builtin_variables.cpp (Browse further)