Commit graph

26 commits

Author SHA1 Message Date
Dave Airlie
3773072169 glsl: Linking support for doubles
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
2015-02-19 00:28:35 -05:00
Timothy Arceri
a1853eaea7 glsl: Use the without_array predicate in some more places
Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Timothy Arceri <t_arceri@yahoo.com.au>
2014-08-19 17:44:06 -07:00
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
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
Thomas Helland
eac09a4e1d glsl: Remove unused includes in link_uniform_init.
Found with IWYU, confirmed with grepping for "hash" and "symbol".
No negative effects on compilation.

IWYU also reported core.h and linker.h could be removed,
but I'm unsure if those are false positives.

Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Thomas Helland <thomashelland90@gmail.com>
2014-06-10 13:05:51 -07:00
Chris Forbes
92840aabf7 glsl: Allow explicit binding on atomics again
As of 943b2d52bf, layout(binding) on an atomic would fail the assertion
here.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2014-04-18 10:35:05 -07:00
Ian Romanick
25a6656875 linker: Set binding for all elements of UBO array
Previously, a UBO like

    layout(binding=2) uniform U {
        ...
    } my_constants[4];

wouldn't get any bindings set.  The code would try to set the binding of
U, but that would fail.  It should instead set the bindings for U[0],
U[1], ...

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76323
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "10.1" <mesa-stable@lists.freedesktop.org>
Cc: github@socker.lepus.uberspace.de
2014-04-11 12:26:01 -07:00
Ian Romanick
cc42717b50 linker: Set block bindings based on UniformBlocks rather than UniformStorage
For blocks, gl_shader_program::UniformStorage isn't very useful.  The
names stored there are the names of the elements of the block, so
finding blocks with an instance name is hard.  There is also only one
entry in ::UniformStorage for each element of a block array, and that is
a deal breaker.

Using ::UniformBlocks is what _mesa_GetUniformBlockIndex does.  I
contemplated sharing code between set_block_binding and
_mesa_GetUniformBlockIndex, but building the stand-alone compiler and
the unit tests make this hard.  I plan to return to this effort shortly.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76323
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "10.1" <mesa-stable@lists.freedesktop.org>
Cc: github@socker.lepus.uberspace.de
2014-04-11 12:26:01 -07:00
Ian Romanick
157391a41b linker: Clean up "unused parameter" warnings
../../src/glsl/link_uniform_initializers.cpp:87:1: warning: unused parameter 'mem_ctx' [-Wunused-parameter]
../../src/glsl/link_uniform_initializers.cpp:87:1: warning: unused parameter 'type' [-Wunused-parameter]
../../src/glsl/link_uniform_initializers.cpp:127:1: warning: unused parameter 'mem_ctx' [-Wunused-parameter]
../../src/glsl/link_uniform_initializers.cpp:127:1: warning: unused parameter 'type' [-Wunused-parameter]

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76323
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "10.1" <mesa-stable@lists.freedesktop.org>
Cc: github@socker.lepus.uberspace.de
2014-04-11 12:26:01 -07:00
Ian Romanick
943b2d52bf linker: Fold set_uniform_binding into call site
In the next patch, we'll see that using
gl_shader_program::UniformStorage is not correct for uniform blocks.
That means we can't use ::UniformStorage to select between the sampler
path and the block path.  Instead we want to just use the type of the
variable.  That's never passed to set_uniform_binding, and it's easier
to just remove the function (especially for later patches in the series)
than to add another parameter.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76323
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "10.1" <mesa-stable@lists.freedesktop.org>
Cc: github@socker.lepus.uberspace.de
2014-04-11 12:26:01 -07:00
Ian Romanick
881c52f13f linker: Various trivial clean-ups in set_sampler_binding
- Remove the spurious block left from the previous commit and re-indent.

- Constify elements.

- Make the spec reference in the code look like other spec references in
  the compiler.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76323
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "10.1" <mesa-stable@lists.freedesktop.org>
Cc: github@socker.lepus.uberspace.de
2014-04-11 12:26:01 -07:00
Ian Romanick
6e2f63b69e linker: Split set_uniform_binding into separate functions for blocks and samplers
The two code paths are quite different, and there are some problems in
the handling of uniform blocks.  Future changes will cause these paths
to diverge further.  Ultimately, selecting between the two functions
will happen at the set_uniform_binding call site, and
set_uniform_binding will be deleted.

NOTE: This patch just moves code around.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76323
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "10.1" <mesa-stable@lists.freedesktop.org>
Cc: github@socker.lepus.uberspace.de
2014-04-11 12:26:01 -07:00
Francisco Jerez
8a2508ee07 glsl: Add image type to the GLSL IR.
v2: Reuse the glsl_sampler_dim enum for images.  Reuse the
    glsl_type::sampler_* fields instead of creating new ones specific
    to image types.  Reuse the same constructor as for samplers adding
    a new 'base_type' argument.

Reviewed-by: Paul Berry <stereotype441@gmail.com>
2014-02-12 18:39:48 +01:00
Paul Berry
665b8d7b6d mesa: Clean up nomenclature for pipeline stages.
Previously, we had an enum called gl_shader_type which represented
pipeline stages in the order they occur in the pipeline
(i.e. MESA_SHADER_VERTEX=0, MESA_SHADER_GEOMETRY=1, etc), and several
inconsistently named functions for converting between it and other
representations:

- _mesa_shader_type_to_string: gl_shader_type -> string
- _mesa_shader_type_to_index: GLenum (GL_*_SHADER) -> gl_shader_type
- _mesa_program_target_to_index: GLenum (GL_*_PROGRAM) -> gl_shader_type
- _mesa_shader_enum_to_string: GLenum (GL_*_{SHADER,PROGRAM}) -> string

This patch tries to clean things up so that we use more consistent
terminology: the enum is now called gl_shader_stage (to emphasize that
it is in the order of pipeline stages), and the conversion functions are:

- _mesa_shader_stage_to_string: gl_shader_stage -> string
- _mesa_shader_enum_to_shader_stage: GLenum (GL_*_SHADER) -> gl_shader_stage
- _mesa_program_enum_to_shader_stage: GLenum (GL_*_PROGRAM) -> gl_shader_stage
- _mesa_progshader_enum_to_string: GLenum (GL_*_{SHADER,PROGRAM}) -> string

In addition, MESA_SHADER_TYPES has been renamed to MESA_SHADER_STAGES,
for consistency with the new name for the enum.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

v2: Also rename the "target" field of _mesa_glsl_parse_state and the
"target" parameter of _mesa_shader_stage_to_string to "stage".

Reviewed-by: Brian Paul <brianp@vmware.com>
2014-01-08 07:30:30 -08:00
Tapani Pälli
447bb9029f glsl: move variables in to ir_variable::data, part II
This patch moves following bitfields and variables to the data
structure:

explicit_location, explicit_index, explicit_binding, has_initializer,
is_unmatched_generic_inout, location_frac, from_named_ifc_block_nonarray,
from_named_ifc_block_array, depth_layout, location, index, binding,
max_array_access, atomic

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
2013-12-12 17:28:11 +02:00
Tapani Pälli
33ee2c67c0 glsl: move variables in to ir_variable::data, part I
This patch moves following bitfields in to the data structure:

used, assigned, how_declared, mode, interpolation,
origin_upper_left, pixel_center_integer

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
2013-12-12 17:28:08 +02:00
Francisco Jerez
26db3b933f glsl: Add new atomic_uint built-in GLSL type.
v2: Fix GLSL version in which the type became available.  Add
    contains_atomic() convenience method.  Split off atomic counter
    comparison error checking to a separate patch that will handle all
    opaque types.  Include new ir_variable fields for atomic types.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2013-10-29 12:40:55 -07:00
Kenneth Graunke
bfcec4618a glsl: Handle the binding qualifier for UBO variables.
layout(binding = N) is equivalent to calling glUniformBlockBinding(_,N).

This currently only handles the GLSL 1.40 case - no interface names, no
arrays of uniform blocks.  This is okay since we don't yet support GLSL
1.50, and don't expose ARB_shading_language_420pack in ES 3.0.

v2: Move into the other function; use binding, not constant_value.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Acked-by: Paul Berry <stereotype441@gmail.com>
2013-07-18 16:57:24 -07:00
Kenneth Graunke
34e2ccc9f0 glsl: Handle the binding qualifier for arrays of samplers.
Normally, uniform array variables are initialized by array literals.
That is, val->type->array_elements >= storage->array_elements.

However, samplers are different.  Consider a declaration such as:

   layout(binding = 5) uniform sampler2D[3];

The initializer value is a single integer (5), while the storage has 3
array elements.  The proper behavior here is to increment one for each
element; they should be initialized to 5, 6, and 7.

This patch introduces new code for sampler types which handles both
arrays of samplers and single samplers correctly.

v2: Move into the other function; use binding, not constant_value.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Acked-by: Paul Berry <stereotype441@gmail.com>
2013-07-18 16:57:24 -07:00
Kenneth Graunke
67038c6ba2 glsl: Add plumbing for handling uniform binding qualifiers.
Sampler uniforms and uniform blocks do not have a var->constant_value.
Instead, they have an integer var->binding value.

This makes extending set_uniform_initializer() somewhat problematic: it
assumes that there is an ir_constant * which represents the initializer,
and that it's safe to dereference that without any NULL checks.

Instead, this patch creates an analogous function for binding
qualifiers, and calls one or the other as appropriate.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
2013-07-18 16:57:24 -07:00
Kenneth Graunke
0a23ec2b6e glsl: Delete unused code for handling samplers in array-initializers.
There is existing code to handle sampler uniform initializers.  Prior to
GLSL 4.20's "binding" keyword, sampler uniforms don't have initializers
at all, so this is somewhat surprising.

The existing code is broken into two cases: one where both the variable and
initializer are arrays, and a second where the variable and initializer are
scalars.

The first case should never occur, since array-typed initializers do not
exist for sampler uniforms.  Even with the binding keyword, the
initializer is a single integer which represents the texture unit to use
for the first array element.

The second is apparently used for some fixed-function code.

v2: Rewrite the commit message - suggested by Paul.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
2013-07-18 16:57:24 -07:00
Marek Olšák
d4a06d77f5 mesa: fix GLSL program objects with more than 16 samplers combined
The problem is the sampler units are allocated from the same pool for all
shader stages, so if a vertex shader uses 12 samplers (0..11), the fragment
shader samplers start at index 12, leaving only 4 sampler units
for the fragment shader. The main cause is probably the fact that samplers
(texture unit -> sampler unit mapping, etc.) are tracked globally
for an entire program object.

This commit adapts the GLSL linker and core Mesa such that the sampler units
are assigned to sampler uniforms for each shader stage separately
(if a sampler uniform is used in all shader stages, it may occupy a different
sampler unit in each, and vice versa, an i-th sampler unit may refer to
a different sampler uniform in each shader stage), and the sampler-specific
variables are moved from gl_shader_program to gl_shader.

This doesn't require any driver changes, and it fixes piglit/max-samplers
for gallium and classic swrast. It also works with any number of shader
stages.

v2: - converted tabs to spaces
    - added an assertion to _mesa_get_sampler_uniform_value

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2013-05-28 13:05:30 +02:00
Ian Romanick
491364e1f3 glsl: Add GLSL_TYPE_INTERFACE
Interfaces are structurally identical to structures from the compiler's
point of view.  They have some additional restrictions, and generally
GPUs use different instructions to access them.  Using a different base
type should make this a bit easier.

This commit also adds the glsl_type::interface_packing fields.  For
GLSL_TYPE_INTERFACE types, this will track the specified packing mode.
It is analogous to gl_uniform_buffer::_Packing.

v2: Add serveral missing GLSL_TYPE_INTERFACE cases in switch-statements.

v3: Add information about glsl_type::interface_packing.  Move row_major
checking in glsl_type::record_key_compare from this patch to the
previous patch.  Both suggested by Paul Berry.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2013-01-25 09:07:33 -05:00
Ian Romanick
ecfb404e8d glsl: Replace most default cases in switches on GLSL type
This makes it easier to find switch-statements that need to be updated
after a new GLSL_TYPE_* is added because the compiler will generate a
warning.

Switch-statements that only had a small number of cases (e.g.,
everything in ir_constant_expression.cpp) were not modified.  I may
regret that decision when we eventually add support for doubles.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Carl Worth <cworth@cworth.org>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2013-01-25 09:07:32 -05:00
Ian Romanick
76027f5b5c glsl: Propagate sampler uniform initializers to gl_shader_program::SamplerUnits
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2012-05-23 11:42:07 -07:00
Ian Romanick
a2e623054b glsl: Set initial values for uniforms in the linker
v2: Fix handling of arrays-of-structure.  Thanks to Eric Anholt for
pointing this out.

v3: Minor comment change based on feedback from Ken.

Fixes piglit glsl-1.20/execution/uniform-initializer/fs-structure-array
and glsl-1.20/execution/uniform-initializer/vs-structure-array.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2012-05-23 11:41:49 -07:00