Commit graph

305 commits

Author SHA1 Message Date
Kristian Høgsberg
a78a589efc glsl: link buffer variables and shader storage buffer interface blocks
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
2015-07-14 07:04:03 +02:00
Iago Toral Quiroga
1146696f75 mesa: rename is_in_uniform_block to is_in_buffer_block
Since this now checks if a variable is inside a uniform or a shader
storage block.

Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
2015-07-14 07:04:03 +02:00
Timothy Arceri
87d2e15b1a mesa: use implementation specified MAX_VERTEX_ATTRIBS rather than hardcoded value
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
2015-07-08 11:40:30 +10:00
Timothy Arceri
939dc28506 glsl: update types for unsized arrays of members
Assigns a new array type based on the max access of
unsized array members. This is to support arrays of arrays.

Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
2015-07-04 17:13:10 +10:00
Tapani Pälli
f045b8b2ff glsl: create program resource list after LinkShader
Resource list can be created properly  only after LinkShader hook
has been called to make sure all dead variables have been removed.

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Martin Peres <martin.peres@linux.intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=90925
2015-07-01 14:40:34 +03:00
Tapani Pälli
73afa31f07 glsl: expose build_program_resource_list function
This is required so that we can move resource list creation
to happen later.

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Martin Peres <martin.peres@linux.intel.com>
2015-07-01 14:40:34 +03:00
Tapani Pälli
ccaf37f449 glsl: build stageref mask using IR, not symbol table
Instead of using symbol table, build mask by inspecting IR. This
change is required by further patches to move resource list creation
to happen later when symbol table does not exist anymore.

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Martin Peres <martin.peres@linux.intel.com>
2015-07-01 14:40:34 +03:00
Tapani Pälli
9350ea6979 glsl: validate sampler array indexing for 'constant-index-expression'
Desktop GLSL < 130 and GLSL ES < 300 allow sampler array indexing where
index can contain a loop induction variable. This extra check will warn
during linking if some of the indexes could not be turned in to constant
expressions.

v2: warning instead of error for backends that did not enable
    EmitNoIndirectSampler option (have dynamic indexing)

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Cc: "10.5" and "10.6" <mesa-stable@lists.freedesktop.org>
2015-06-30 11:12:44 +03:00
Kenneth Graunke
6218c68bec Revert "glsl: clone inputs and outputs during linking"
This reverts commit c2ff3485b3.

Ilia and I noticed a memory leak caused by this patch: at least with
fixed-function programs, we clone things using ProgramResourceList as
the context before reralloc makes it non-NULL.

I believe Tapani found other bugs with these patches, so I'm just going
to revert them for now and let him pursue them further.
2015-06-28 22:20:27 -07:00
Tapani Pälli
c2ff3485b3 glsl: clone inputs and outputs during linking
This increases memory pressure during linking but makes it easier
for backend to free IR after it is not needed anymore.

v2: use resource list as ralloc context in case of relink (Kenneth)

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: mesa-stable@lists.freedesktop.org
2015-06-24 12:01:21 -07:00
Jose Fonseca
f734d25560 glsl: Fail linkage when UBO exceeds GL_MAX_UNIFORM_BLOCK_SIZE.
It's not totally clear whether other Mesa drivers can safely cope with
over-sized UBOs, but at least for llvmpipe receiving a UBO larger than
its limit causes problems, as it won't fit into its internal display
lists.

This fixes piglit "arb_uniform_buffer_object-maxuniformblocksize
fsexceed" without regressions for llvmpipe.

NVIDIA driver also fails to link the shader from
"arb_uniform_buffer_object-maxuniformblocksize fsexceed".

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=65525

PS: I don't recommend cherry-picking this for Mesa stable, as some app
might inadvertently been relying on UBOs larger than
GL_MAX_UNIFORM_BLOCK_SIZE to work on other drivers, so even if this
commit is universally accepted it's probably best to let it mature in
master for a while.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
2015-06-19 07:21:05 +01:00
Martin Peres
87a4bc5118 mesa: reference built-in uniforms into gl_uniform_storage
This change introduces a new field in gl_uniform_storage to
explicitely say that a uniform is built-in. In the case where it is,
no storage is defined to make it clear that it is read-only from the
mesa side. I fixed all the places in the code that made use of the
structure that I changed. Any place making a wrong assumption and using
the storage straight away will just crash.

This patch seems to implement the path of least resistance towards
listing built-in uniforms in GL_ACTIVE_UNIFORM (and other APIs).

Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Signed-off-by: Martin Peres <martin.peres@linux.intel.com>
2015-06-04 09:25:00 +03:00
Ilia Mirkin
5646f0f18a glsl: avoid leaking linked gl_shader when there's a late linker error
This makes piglit mixing-clip-distance-and-clip-vertex-disallowed have 0
definitely lost blocks with valgrind. (Same non-0 number of possibly
lost blocks though.)

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Tobias Klausmann <tobias.johannes.klausmann@mni.thm.de>
Cc: "10.5 10.6" <mesa-stable@lists.freedesktop.org>
2015-05-25 16:52:11 -04:00
Timothy Arceri
d67515b7be glsl: remove element_type() helper
We now have is_array() and without_array() that make the
code much clearer and remove the need for this.

For all remaining calls to this we already knew that
the type was an array so returning a null wasn't adding any value.

v2: use without_array() in _mesa_ast_array_index_to_hir() and don't use
 without_array() in lower_clip_distance_visitor() as we want to make sure the
 array is 2D.

Reviewed-by: Matt Turner <mattst88@gmail.com>
2015-05-22 08:35:45 +10:00
Tapani Pälli
9f4eaba36f glsl: add stage references for UBO uniforms
Patch marks uniforms inside UBO properly referenced by stages.

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=90397
2015-05-18 15:23:09 +03:00
Dave Airlie
ad208d975a glsl: check total count of multi-slot double vertex attribs
The spec is vague all over the place about this, but this seems
to be the intent, we can probably make this optional later if
someone makes hw that cares and writes a driver.

Basically we need to double count some of the d types but
only for totalling not for slot number assignment.

Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-05-08 10:21:01 +10:00
Tapani Pälli
3706e5dbc9 glsl: mark special built-in inputs referenced by vertex stage
Refactoring done on active attribute queries did not take in to
account special built-in inputs for the vertex stage. This commit
sets them referenced by vertex stage so that they get enumerated
properly.

Fixes Piglit test 'get-active-attrib-returns-all-inputs' failure.

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=90243
Acked-by: Jose Fonseca <jfonseca@vmware.com>
Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
Reviewed-By: Martin Peres <martin.peres@linux.intel.com>
2015-05-06 11:10:51 +03:00
Francisco Jerez
ce0e151721 glsl: Keep track of the early_fragment_tests flag in gl_shader.
And rename _mesa_glsl_parse_state::early_fragment_tests to
fs_early_fragment_tests for consistency with other FS-specific flags in the
same struct.

Reviewed-by: Matt Turner <mattst88@gmail.com>
2015-05-04 17:44:17 +03:00
Tapani Pälli
ed10f9cfad glsl: correct indentation of comment, Trivial.
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
2015-04-21 20:11:43 +03:00
Tapani Pälli
5917ca349a glsl: add fallthrough comment on switch
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-By: Martin Peres <martin.peres@linux.intel.com>
2015-04-21 14:38:10 +03:00
Jose Fonseca
037e0e78ab mesa,glsl: rename interface to programInterface.
`interface` is a define on Windows -- an alias for `struct` keyword,
used when declaring COM interfaces in C or C++.

So use instead `programInterface`, therefore matching the name used
in GL_ARB_program_interface_query spec/headers, which was renamed exactly
for the same reason:

  "Revision 10, May 10, 2012 (pbrown)
     - Rename the formal parameter <interface> used by the functions in this
       extension to <programInterface>.  Certain versions of the Microsoft
       C/C++ compiler and/or its headers cause "interface" to be treated as a
       reserved keyword."

Trivial.
2015-04-16 10:23:24 +01:00
Tapani Pälli
c796ce4108 mesa/glsl: build list of program resources during linking
Patch adds ProgramResourceList to gl_shader_program structure.
List contains references to active program resources and is
constructed during linking phase.

This list will be used by follow-up patches to implement hooks
for GL_ARB_program_interface_query. It can be also used to
implement any of the older shader program query APIs.

v2: code cleanups + note for SSBO and subroutines (Ilia Mirkin)
v3: code cleanups + assert(MESA_SHADER_STAGES < 8) (Martin Peres)

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Martin Peres <martin.peres@linux.intel.com>
2015-04-16 07:55:35 +03:00
Tapani Pälli
993b9b6adb linker: fix varying linking if SSO program has only gs and fs
Previously linker did not take in to account case where one would
have only gs and fs (with SSO), patch adds the case by refactoring
code around assign_varying_locations. This makes sure locations for
gs get populated correctly.

This was found with some of the SSO subtests of Martin's upcoming
GetProgramInterfaceiv Piglit test which passes with the patch, no
Piglit regressions.

v2: code cleanups (Martin Peres)

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Martin Peres <martin.peres@linux.intel.com>
2015-04-16 07:30:12 +03:00
Anuj Phogat
d8208312a3 glsl: Generate link error for non-matching gl_FragCoord redeclarations
in different fragment shaders. This also applies to a case when gl_FragCoord
is redeclared with no layout qualifiers in one fragment shader and not
declared but used in other fragment shader.

Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Khronos Bug#12957
Cc: "10.5" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
2015-03-24 11:16:31 -07:00
Jose Fonseca
d01a7cdae5 glsl: Avoid GLboolean vs bool arithmetic MSVC warnings.
Note that GLboolean is an alias for unsigned char, which lacks the
implicit true/false semantics that C++/C99 bool have.

Reviewed-by: Brian Paul <brianp@vmware.com>

v2: Change gl_shader::IsES and gl_shader_program::IsES to be bool as
recommended by Ian Romanick.

Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2015-03-22 08:23:23 +00:00
Timothy Arceri
1a96d9ef1c glsl: let interface linking code validate its arrays
Currently intrastage arrays are validated twice for interface blocks.

Reviewed-by: Mark Janes <mark.a.janes@intel.com>
2015-03-06 07:26:57 +11:00
Timothy Arceri
50859c688c glsl: move array validation into its own function
V2: return true when var->type is unsized but max access is within valid range

Reviewed-by: Mark Janes <mark.a.janes@intel.com>
2015-03-06 07:26:41 +11:00
Brian Paul
ddf4b2e363 mesa: only include ctype.h where it's used
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
2015-02-26 08:38:38 -07:00
Timothy Arceri
da4fb3e7a1 glsl: check if implicitly sized arrays match explicitly sized arrays across the same stage
V2: Improve error message.

Signed-off-by: Timothy Arceri <t_arceri@yahoo.com.au>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
2014-12-23 19:32:56 +11:00
Brian Paul
241c599cb1 glsl: remove extern "C" around #includes
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
2014-12-16 07:52:41 -07:00
Ian Romanick
a909b995d9 linker: Assign varying locations geometry shader inputs for SSO
Previously only geometry shader outputs would be assigned locations if
the geometry shader was the only stage in the linked program.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Cc: pavol@klacansky.com
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=82585
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
2014-12-03 11:33:49 -08:00
Andres Gomez
f9fc3ae89b linker: Add carriage returns on several linker errors
Reviewed-by: Brian Paul <brianp@vmware.com>
2014-11-18 08:47:04 -07:00
Neil Roberts
352f8f2d13 linker: Add a missing space in an error message
Reviewed-by: Brian Paul <brianp@vmware.com>
2014-11-13 16:46:12 +00:00
Kenneth Graunke
4f22db5fbb glsl: Lower constant arrays to uniform arrays.
Consider GLSL code such as:

   const ivec2 offsets[] =
      ivec2[](ivec2(-1, -1), ivec2(-1, 0), ivec2(-1, 1),
              ivec2(0, -1),  ivec2(0, 0),  ivec2(0, 1),
              ivec2(1, -1),  ivec2(1, 0),  ivec2(1, 1));

   ivec2 offset = offsets[<non-constant expression>];

Both i965 and nv50 currently handle this very poorly.  On i965, this
becomes a pile of MOVs to load the immediate constants into registers,
a pile of scratch writes to move the whole array to memory, and one
scratch read to actually access the value - effectively the same as if
it were a non-constant array.

We'd much rather upload large blocks of constant data as uniform data,
so drivers can simply upload the data via constbufs, and not have to
populate it via shader instructions.

This is currently non-optional because both i965 and nouveau benefit
from it, and according to Marek radeonsi would benefit today as well.
(According to Tom, radeonsi may want to handle this itself in the long
term, but we can always add a flag when it becomes useful.)

Improves performance in a terrain rendering microbenchmark by about 2x,
and cuts the number of instructions in about half.  Helps a lot of
"Natural Selection 2" shaders, as well as one "HOARD" shader.

total instructions in shared programs: 5473459 -> 5471765 (-0.03%)
instructions in affected programs:     5880 -> 4186 (-28.81%)

v2: Use ir_var_hidden to avoid exposing the new uniform via the GL
    uniform introspection API.

v3: Alphabetize Makefile.sources properly.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=77957
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
2014-11-06 16:20:01 -08:00
Andres Gomez
b0e0c26f02 glsl: Standardize names and fix typos
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2014-10-24 23:14:04 -07:00
Ian Romanick
fefead3b63 linker: Rely on _mesa_clear_shader_program_data to clear link information
_mesa_link_shader_program already calls _mesa_clear_shader_program_data
before calling link_shaders, so this is already done.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2014-10-24 19:54:38 -07:00
Ian Romanick
a99482482d glsl: Never put ir_var_temporary variables in the symbol table
Later patches will give every ir_var_temporary the same name in release
builds.  Adding a bunch of variables named "compiler_temp" to the symbol
table can only cause problems.

No change Valgrind massif results for a trimmed apitrace of dota2.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2014-09-30 13:34:42 -07:00
Ian Romanick
5aa8d8194c glsl: Make ir_variable::num_state_slots and ir_variable::state_slots private
Also move num_state_slots inside ir_variable_data for better packing.

The payoff for this will come in a few more patches.

No change Valgrind massif results for a trimmed apitrace of dota2.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
2014-09-30 13:34:42 -07:00
Ian Romanick
21df016902 glsl: Make ir_variable::max_ifc_array_access private
The payoff for this will come in a few more patches.

No change Valgrind massif results for a trimmed apitrace of dota2.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
2014-09-30 13:34:42 -07:00
Juha-Pekka Heikkila
d2f0442bf6 glsl: Check calloc return value in link_intrastage_shaders()
Check calloc return value while adding build-in functions.

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
2014-09-23 10:25:02 +03:00
Kalyan Kondapally
dbc2d81d2b Generate a warning when not writing gl_Position with GLES.
With GLES we don't give any kind of warning in case we don't
write to gl_position. This patch makes changes so that we
generate a warning in case of GLES (VER < 300) and an error
in case of GL.

Signed-off-by: Kalyan Kondapally <kalyan.kondapally@intel.com>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
2014-09-15 08:14:33 +03:00
Ian Romanick
ec08b5e768 glsl: Add a lowering pass for gl_VertexID
Converts gl_VertexID to (gl_VertexIDMESA + gl_BaseVertex). gl_VertexIDMESA
is backed by SYSTEM_VALUE_VERTEX_ID_ZERO_BASE, and gl_BaseVertex is backed
by SYSTEM_VALUE_BASE_VERTEX.

v2: Put the enum in struct gl_constants and propoerly resolve the scope
in C++ code.  Fix suggested by Marek.

v3: Reabase on Matt's foreach_in_list changes (was using foreach_list).

v4 (Ken): Use a systemvalue instead of a uniform because
STATE_BASE_VERTEX has been removed.

v5: Use a boolean to select lowering, and only allow one lowering
method.  Suggested by Ken.

v6 (Ken): Replace strcmp against literal "gl_BaseVertex"/"gl_VertexID"
with SYSTEM_VALUE enum checks, for efficiency.

v7: Rebase on context constant initialization work.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
2014-09-10 11:05:08 -07:00
Ian Romanick
04d3323d4b glsl/linker: Make get_main_function_signature public
The next patch will use this function in a different file.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
2014-09-10 11:05:05 -07:00
Kalyan Kondapally
78c9201a5b Linking fails when not writing gl_Position.
According to GLSL-ES Spec(i.e. 1.0, 3.0), gl_Position value is undefined
after the vertex processing stage if we don't write gl_Position. However,
GLSL 1.10 Spec mentions that writing to gl_Position is mandatory. In case
of GLSL-ES, it's not an error and atleast the linking should pass.
Currently, Mesa throws an linker error in case we dont write to gl_position
and Version is less then 140(GLSL) and 300(GLSL-ES). This patch changes
it so that we don't report an error in case of GLSL-ES.

Signed-off-by: Kalyan Kondapally <kalyan.kondapally@intel.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=83380
2014-09-09 10:39:39 +03:00
Dave Airlie
2d5d1f5598 glsl: free uniform_map on failure path.
If we fails in reserve_explicit_locations, we leak uniform_map.

Reported-by: coverity scanner.

Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-02 16:05:52 +10:00
Matt Turner
9e2e7c7dc0 glsl: Use UniformBooleanTrue value for uniform initializers.
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
2014-08-18 18:35:48 -07:00
Marek Olšák
002211f9ee mesa: move ShaderCompilerOptions into gl_constants
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
2014-08-11 21:53:57 +02:00
Kenneth Graunke
21129d4de3 glsl: Make it possible to ignore built-ins when matching signatures.
Historically, we've implemented the rules for overriding built-in
functions by creating multiple ir_functions and relying on the symbol
table to hide the one containing built-in functions.  That works, but
has a few drawbacks, so the next patch will change it.

Instead, we'll have a single ir_function for a particular name, which
will contain both built-in and user-defined signatures.  Passing an
extra parameter to matching_signature makes it easy to ignore built-ins
when they're supposed to be hidden.

I didn't add the parameter to exact_matching_signature since it wasn't
necessary.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2014-08-04 15:47:06 -07:00
Matt Turner
c6a16f6d0e glsl: Use typed foreach_in_list_safe instead of foreach_list_safe.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2014-07-01 08:55:51 -07:00
Matt Turner
4d78446d78 glsl: Use typed foreach_in_list instead of foreach_list.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2014-07-01 08:55:51 -07:00