Commit Graph

71 Commits

Author SHA1 Message Date
Marek Olšák
43d66c8c2d mesa: include mtypes.h less
- remove mtypes.h from most header files
- add main/menums.h for often used definitions
- remove main/core.h

v2: fix radv build

Reviewed-by: Brian Paul <brianp@vmware.com>
2018-04-12 19:31:30 -04:00
Marek Olšák
65ed98839b mesa: reduce the size of gl_program
gl_program: 1456 -> 976 bytes

Reviewed-by: Brian Paul <brianp@vmware.com>
2018-02-13 01:00:45 +01:00
Jordan Justen
7cf1037d5a main, glsl: Add UniformDataDefaults which stores uniform defaults
The ARB_get_program_binary extension requires that uniform values in a
program be restored to their initial value just after linking.

This patch saves off the initial values just after linking. When the
program is restored by glProgramBinary, we can use this to copy the
initial value of uniforms into UniformDataSlots.

V2 (Timothy Arceri):
 - Store UniformDataDefaults only when serializing GLSL as this
   is what we want for both disk cache and ARB_get_program_binary.
   This saves us having to come back later and reset the Uniforms
   on program binary restores.

Signed-off-by: Timothy Arceri <tarceri@itsqueeze.com>
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> (v1)
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
2017-12-08 16:44:35 +11:00
Ian Romanick
24e78d99db glsl: Refactor matrix stride calculation into a utility function
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Thomas Helland <thomashelland90@gmail.com>
2017-11-08 18:37:29 -08:00
Ian Romanick
ae1fd09c1d glsl: Remove program_resource_visitor::visit_field(const glsl_struct_field *)
I could not find any remaining users.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
2017-11-08 18:37:29 -08:00
Timothy Arceri
9c33533586 glsl: use the correct parent when allocating program data members
Cc: "17.2 17.3" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2017-11-09 12:07:48 +11:00
Timothy Arceri
cf05bb506a glsl: drop cache_fallback
This turned out to be a dead end, it is much easier and less error
prone to just cache the IR used by the drivers backend e.g. TGSI or
NIR.

Cc: "17.2 17.3" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2017-11-09 12:07:48 +11:00
Emil Velikov
0ac78dc925 util: move string_to_uint_map to glsl
The functionality is used by glsl and mesa. With the latter already
depending on the former.

With this in place the src/util/ static library libmesautil.la no longer
has a C++ dependency. Thus objects which use it (like libEGL) don't need
the C++ link.

Cc: "17.2" <mesa-stable@lists.freedesktop.org>
Fixes: 02cc359372 ("egl/wayland: Use linux-dmabuf interface for buffers")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101851
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Suggested-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Tested-by: Mike Lothian <mike@fireburn.co.uk>
Tested-by: James Harvey <lothmordor@gmail.com>
2017-08-29 13:40:44 +01:00
Timothy Arceri
4c2422067b glsl: pass UseSTD430AsDefaultPacking to where it will be used
Here we also make use of the UseSTD430AsDefaultPacking constant
and call the new get_internal_ifc_packing() helper.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2017-08-22 11:29:27 +10:00
Kenneth Graunke
b7ba745032 glsl: Track whether uniforms are active per stage
for finer granularity state flagging

v2: Marek - use a bitmask, add shader cache support

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
2017-06-22 01:51:02 +02:00
Samuel Pitoiset
3a087dd7a4 glsl: process uniform images declared bindless
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
2017-06-14 10:04:36 +02:00
Samuel Pitoiset
9e756de7d1 glsl: process uniform samplers declared bindless
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
2017-06-14 10:04:36 +02:00
Samuel Pitoiset
326a82a255 mesa: add support for glUniformHandleui64*ARB()
Bindless sampler/image handles are represented using 64-bit
unsigned integers.

The ARB_bindless_texture spec says:

   "The error INVALID_OPERATION is generated by UniformHandleui64{v}ARB
   if the sampler or image uniform being updated has the "bound_sampler"
   or "bound_image" layout qualifier"."

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
2017-06-14 10:04:36 +02:00
Samuel Pitoiset
0ca5bdb330 glsl: simplify link_assign_uniform_storage() a bit
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Elie Tournier <elie.tournier@collabora.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
2017-05-16 09:33:06 +02:00
Samuel Pitoiset
4aa4e17f4e glsl: order indices for images inside a struct array
ARB_bindless_texture allows images to be declared inside
structures. This is similar to samplers.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
2017-05-12 10:30:37 +02:00
Samuel Pitoiset
f87416f62d glsl: add parcel_out_uniform_storage::set_opaque_indices() helper
In order to sort indices for images inside a struct array we
need to do something similar to samplers.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
2017-05-12 10:30:30 +02:00
Samuel Pitoiset
d6810ea286 glsl: do not count bindless samplers/images when linking uniforms
From section 2.14.8 of the ARB_bindless_texture spec:

    "(modify second paragraph, p. 126) ... against the
     MAX_COMBINED_TEXTURE_IMAGE_UNITS limit.  Samplers accessed
     using texture handles (section 3.9.X) are not counted against
     this limit."

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
2017-05-06 16:40:19 +02:00
Samuel Pitoiset
1f40343e9a glsl: make component_slots() returns 2 for samplers/images
Bindless samplers/images are 64-bit unsigned integers, which
means they consume two components as specified by
ARB_bindless_texture.

It looks like we are not wasting uniform storage by changing
this because default-block uniforms are not packed. So, if
we use N uint uniforms, they occupy N * 16 bytes in the
constant buffer. This is something that could be improved.

Though, count_uniform_size needs to be adjusted to not count
a sampler (or image) twice.

As a side effect, this will probably break the cache if you
have one because it will consider sampler/image types as
two components.

v3: - update the comments

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
2017-05-06 16:40:19 +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
Matt Turner
71d11f3998 glsl: Initialize current_var
CID: 1324644 (Uninitialized pointer field)
2017-04-25 15:28:33 -07:00
Samuel Pitoiset
cacc823c39 glsl: make use of glsl_type::is_double()
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
2017-04-21 19:34:12 +02:00
Samuel Pitoiset
862361c4f5 glsl: get rid of values_for_type()
This function is actually a wrapper for component_slots()
and it always returns 1 (or N) for samplers. Since
component_slots() now return 1 for samplers, it can go.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
2017-04-21 10:08:32 +02:00
Timothy Arceri
794f7326bc glsl: don't lose uniform values when falling back to full compile
Here we skip the recreation of uniform storage if we are relinking
after a cache miss. This is improtant because uniform values may
have already been set by the application and we don't want to reset
them.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
2017-02-17 11:18:43 +11:00
Timothy Arceri
49f3439089 glsl: make uniform values helper available for use elsewhere
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
2017-02-17 11:18:43 +11:00
Bartosz Tomczyk
fc27181f9e glsl: fix heap-buffer-overflow
The `end+1` skips the ']', whereas the `strlen+1` includes the final
'\0' in the move to terminate the string.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
2017-01-31 15:58:52 +01:00
Carl Worth
b8cb1a05cd glsl: add new uniform fields to be used to restore state from cache
Signed-off-by: Timothy Arceri <timothy.arceri@collabora.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2017-01-31 09:51:30 +11:00
Timothy Arceri
62f718bfcb glsl: store number of explicit uniform loactions in gl_shader_program
This allows us to cleanup the functions that pass this count around,
but more importantly we will be able to call the uniform linking
functions from that backends linker without having to pass this
information to the backend directly via Driver.LinkShader().

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2017-01-19 15:55:02 +11:00
Timothy Arceri
ae632afe4f st/mesa/glsl: set num_images directly in shader_info
This change also removes the now duplicate NumImages field.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
2017-01-09 15:27:35 +11:00
Timothy Arceri
076ab157ff st/mesa/glsl: move SamplerTargets to gl_program
This will help allow us to simplify the handling of samplers by
storing them in a single location rather than duplicating them in
both gl_linked_shader and gl_program.

Reviewed-by: Eric Anholt <eric@anholt.net>
2017-01-06 11:21:42 +11:00
Timothy Arceri
937523971f st/mesa/glsl: set SamplersUsed directly in gl_program
Reviewed-by: Eric Anholt <eric@anholt.net>
2017-01-06 11:21:42 +11:00
Timothy Arceri
4807a83da0 mesa/glsl: set num_textures per stage directly in shader_info
Reviewed-by: Eric Anholt <eric@anholt.net>
2017-01-06 11:21:42 +11:00
Timothy Arceri
5ceedefd6c mesa/glsl: remove hack to reset sampler units to zero
Now that we have the is_arb_asm flag we can just skip the
initialisation.

V2: remove hack from standalone compiler where it was never
needed since it only compiles glsl shaders.

Reviewed-by: Eric Anholt <eric@anholt.net>
2017-01-06 11:21:42 +11:00
Timothy Arceri
f5bc127b2f st/mesa/glsl/i965: move ShaderStorageBlocks to gl_program
Having it here rather than in gl_linked_shader allows us to simplify
the code.

Also it is error prone to depend on the gl_linked_shader for programs
in current use because a failed linking attempt will free infomation
about the current program. In i965 we could be trying to recompile
a shader variant but may have lost some required fields.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2017-01-06 11:21:41 +11:00
Timothy Arceri
f62eb6c7eb st/mesa/glsl/i965: set num_ssbos directly in shader_info
Here we also remove the duplicate field in gl_linked_shader and always
get the value from shader_info instead.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2017-01-06 11:21:41 +11:00
Timothy Arceri
0e7eec1ab5 st/mesa/glsl/i965: move per stage UniformBlocks to gl_program
This will help allow us to store pointers to gl_program structs in the
CurrentProgram array resulting in a bunch of code simplifications.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2017-01-06 11:21:41 +11:00
Timothy Arceri
b792c38979 st/mesa/glsl/i965: set num_ubos directly in shader_info
This also removes the duplicate field in gl_linked_shader, and
gets num_ubos from shader_info instead.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2017-01-06 11:21:41 +11:00
Timothy Arceri
a1da57c19c st/mesa/glsl/i965: move ImageUnits and ImageAccess fields to gl_program
Having it here rather than in gl_linked_shader allows us to simplify
the code.

Also it is error prone to depend on the gl_linked_shader for programs
in current use because a failed linking attempt will free infomation
about the current program. In i965 we could be trying to recompile
a shader variant but may have lost some required fields.

We drop the memset on ImageUnits because gl_program is already
created using rzalloc().

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2017-01-06 11:21:40 +11:00
Timothy Arceri
41dd6c3539 mesa/glsl: move subroutine metadata to gl_program
This will allow us to store gl_program rather than gl_shader_program
as the current program perstage which allows us to simplify code
that makes use of the CurrentProgram list.

Reviewed-by: Eric Anholt <eric@anholt.net>
2016-12-30 10:57:16 +11:00
Ian Romanick
d7aee96cc6 glsl: Trivial whitespace fixes in link_uniforms.cpp
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2016-12-19 15:55:44 -08:00
Ian Romanick
ceea514d91 linker: Accurately mark a uniform block instance array element as used in a stage
Now that information about which array-of-arrays elements are accessed
is tracked, use that information to only mark an instance array element
as used-by-stage if, in fact, it is.

Fixes GL45-CTS.program_interface_query.uniform-block-types.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2016-12-19 15:55:43 -08:00
Ian Romanick
5085b64031 glsl: Use simpler visitor to determine which UBO and SSBO blocks are used
Very soon this visitor will get more complicated.  The users of the
existing ir_variable_refcount visitor won't need the coming
functionality, and this use doesn't need much of the functionality of
ir_variable_refcount.

v2: ir_array_refcount_visitor::get_variable_entry cannot return NULL, so
don't check it.  Suggested by Timothy.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2016-12-19 15:55:43 -08:00
Timothy Arceri
2ea021a1eb glsl: use linked_shaders bitmask to iterate stages for subroutine fields
This should be faster than looping over every stage and null checking, but
will also make the code a bit cleaner when we switch to getting more fields
from gl_program rather than from gl_linked_shader as we can just copy the
pointer and not need to worry about null checking then copying.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2016-11-30 14:13:52 +11:00
Timothy Arceri
0303201dfb mesa: fix active subroutine uniforms properly
07fe2d565b introduced a big hack in order to return
NumSubroutineUniforms when querying ACTIVE_RESOURCES for
<shader>_SUBROUTINE_UNIFORM interfaces. However this is the
wrong fix we are meant to be returning the number of active
resources i.e. the count of subroutine uniforms in the
resource list which is what the code was previously doing,
anything else will cause trouble when trying to retrieve
the resource properties based on the ACTIVE_RESOURCES count.

The real problem is that NumSubroutineUniforms was counting
array elements as separate uniforms but the innermost array
is always considered a single uniform so we fix that count
instead which was counted incorrectly in 7fa0250f9.

Idealy we could probably completely remove
NumSubroutineUniforms and just compute its value when needed
from the resource list but this works for now.

Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Cc: 13.0 <mesa-stable@lists.freedesktop.org>
2016-11-29 15:29:51 +11:00
Timothy Arceri
203c8794a1 st/mesa/glsl/nir/i965: make use of new gl_shader_program_data in gl_shader_program
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2016-11-19 15:45:46 +11:00
Timothy Arceri
adb3a83c09 glsl: tidy up entries temporary
Here we just move initialisation of entries to where it is needed i.e.
outside the loop and after the continue checks.

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2016-11-19 09:35:58 +11:00
Ian Romanick
cbba5e13ac linker: Remove unnecessary overload of program_resource_visitor::visit_field
It looks like I added this version as a short-hand for users that didn't
need the fuller version.  I don't think there's any real utility in
that.  I'm not sure what my thinking was there.  Maybe if those users
overloaded the recursion function could just call the compact version to
avoid passing some parameters?  None of the users do that.

Either way, having this extra overload is not useful.  Delete it.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
2016-11-10 10:57:46 -08:00
Ian Romanick
084105c213 linker: Accurately track gl_uniform_block::stageref
As the linked per-stage shaders are processed, mark any block that has a
field that is accessed as referenced.  When combining all the linked
shaders, combine the per-stage stageref masks.

This fixes a number of GLES CTS tests:

    ES31-CTS.core.geometry_shader.program_resource.program_resource
    ES32-CTS.core.geometry_shader.program_resource.program_resource
    ESEXT-CTS.geometry_shader.program_resource.program_resource
    piglit.gl45-cts.geometry_shader.program_resource.program_resource

However, it makes quite a few more fail:

    ES31-CTS.functional.program_interface_query.buffer_variable.random.6
    ES31-CTS.functional.program_interface_query.buffer_variable.referenced_by.compute.unnamed_block.float
    ES31-CTS.functional.program_interface_query.buffer_variable.referenced_by.separable_fragment.unnamed_block.float
    ES31-CTS.functional.program_interface_query.buffer_variable.referenced_by.vertex_fragment_only_fragment.unnamed_block.float
    ES31-CTS.functional.program_interface_query.buffer_variable.referenced_by.vertex_fragment.unnamed_block.float
    ES31-CTS.functional.program_interface_query.buffer_variable.referenced_by.vertex_geo_fragment_only_fragment.unnamed_block.float
    ES31-CTS.functional.program_interface_query.buffer_variable.referenced_by.vertex_geo_fragment.unnamed_block.float
    ES31-CTS.functional.program_interface_query.buffer_variable.referenced_by.vertex_tess_fragment_only_fragment.unnamed_block.float
    ES31-CTS.functional.program_interface_query.buffer_variable.referenced_by.vertex_tess_fragment.unnamed_block.float
    ES31-CTS.functional.program_interface_query.buffer_variable.referenced_by.vertex_tess_geo_fragment_only_fragment.unnamed_block.float
    ES31-CTS.functional.program_interface_query.buffer_variable.referenced_by.vertex_tess_geo_fragment.unnamed_block.float
    ES32-CTS.functional.program_interface_query.buffer_variable.random.6
    ES32-CTS.functional.program_interface_query.buffer_variable.referenced_by.compute.unnamed_block.float
    ES32-CTS.functional.program_interface_query.buffer_variable.referenced_by.separable_fragment.unnamed_block.float
    ES32-CTS.functional.program_interface_query.buffer_variable.referenced_by.vertex_fragment_only_fragment.unnamed_block.float
    ES32-CTS.functional.program_interface_query.buffer_variable.referenced_by.vertex_fragment.unnamed_block.float
    ES32-CTS.functional.program_interface_query.buffer_variable.referenced_by.vertex_geo_fragment_only_fragment.unnamed_block.float
    ES32-CTS.functional.program_interface_query.buffer_variable.referenced_by.vertex_geo_fragment.unnamed_block.float
    ES32-CTS.functional.program_interface_query.buffer_variable.referenced_by.vertex_tess_fragment_only_fragment.unnamed_block.float
    ES32-CTS.functional.program_interface_query.buffer_variable.referenced_by.vertex_tess_fragment.unnamed_block.float
    ES32-CTS.functional.program_interface_query.buffer_variable.referenced_by.vertex_tess_geo_fragment_only_fragment.unnamed_block.float
    ES32-CTS.functional.program_interface_query.buffer_variable.referenced_by.vertex_tess_geo_fragment.unnamed_block.float

I have diagnosed the failures, but I'm not sure whether we or the
tests are wrong.  After optimizations are applied, all of the tests
are of the form:

    buffer X {
        float f;
    } x;

    void main()
    {
        x.f = x.f;
    }

The test then queries that x is referenced by that shader stage.  We
eliminate the assignment of x.f to itself, and that removes the last
reference to x.  We report that x is not referenced, and the test fails.
I do not know whether or not we are allowed to eliminate that assignment
of x.f to itself.

After discussions with the OpenGL ES group in Khronos, we believe that
Mesa's behavior is correct.  I will provide patches to the CTS tests
to Khronos.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2016-11-09 12:47:51 -08:00
Ian Romanick
392fabcfee linker: Slight code rearrange to prevent duplication in the next commit
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
2016-11-09 12:47:51 -08:00
Ian Romanick
a529acfb2b linker: Trivial coding standards fixes
v2: Revert the unreachable to assert in
parcel_out_uniform_storage::visit_field.  Suggested by Ilia.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
2016-11-09 12:47:51 -08:00
Timothy Arceri
63e8221574 glsl: move some uniform linking code to new link_assign_uniform_storage()
This makes link_assign_uniform_locations() easier to follow.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2016-09-27 11:29:05 +10:00