Commit graph

57680 commits

Author SHA1 Message Date
Marek Olšák
678ac190a5 mesa: default DEPTH_TEXTURE_MODE should be RED in the core profile
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
(cherry picked from commit a6b1a7c0d2)
2013-08-05 15:41:14 -07:00
Marek Olšák
771b576da6 st/mesa: fix sRGB renderbuffers without EXT_framebuffer_sRGB support
https://bugs.freedesktop.org/show_bug.cgi?id=59322

Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 1302c66896)
2013-08-05 15:41:14 -07:00
Marek Olšák
9c66a29358 Revert "r300g: Give CLIP_DISABLE another try"
This reverts commit e866bd1ade.

https://bugs.freedesktop.org/show_bug.cgi?id=57875

Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 4dfe1a0df5)
2013-08-05 15:41:14 -07:00
Ian Romanick
5154c93fa8 glsl: Less const for glsl_type convenience accessors
The second 'const' says that the pointer itself is constant.  This in
unenforcible in C++, so GCC emits a warning (see) below for each of
these functions in every file that includes glsl_types.h.  It's a lot of
warning spam.

../../../src/glsl/glsl_types.h:176:58: warning: type qualifiers ignored on function return type [-Wignored-qualifiers]

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 803f755ede)
2013-08-05 15:41:14 -07:00
Kenneth Graunke
8a27c824ec glsl: Disallow auxiliary storage qualifiers on FS outputs.
This has always been an error; we just forgot to check for it.

Fixes Piglit's no-aux-qual-on-fs-output.frag.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=67333
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 17856726c9)
2013-08-05 15:41:14 -07:00
Kenneth Graunke
4953bf3837 glsl: Classify "layout" like other identifiers.
When "layout" isn't being lexed as LAYOUT_TOK, we should treat it like
an ordinary identifier.  This means we need to classify it to determine
whether we should return IDENTIFIER, TYPE_IDENTIFIER, or NEW_IDENTIFIER.

Fixes the WebGL conformance test "shader-with-non-reserved-words."

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=64087
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit c178ec0d7e)
2013-08-05 15:41:14 -07:00
Chris Forbes
c7bfe87721 i965/vs: Fix flaky texture swizzling
If any component used the ZERO or ONE swizzle, its corresponding member
in the `swizzle` array would never be initialized. We *mostly* got away
with this, except when that memory happened to contain a value that
clobbered another channel when combined using BRW_SWIZZLE4().

NOTE: This is a candidate for stable branches.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
(cherry picked from commit 124f567f1d)
2013-08-05 15:41:14 -07:00
Dave Airlie
c6f6b4e161 gallium/vl: add prime support
This fixes the dri2 opening to check if DRI_PRIME is set,
and picks the correct drm device path to open, this along
with a change to libvdpau allows vdpauinfo to work at least,

Martin Peres tested with nouveau, and there seems to be a
further issue with final displaying, it only works sometimes,
but this patch is at least necessary to help debug further.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Christian König <christian.koenig@amd.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=67283
Tested-by: Armin K. <krejzi@email.com>
(cherry picked from commit 19338157c9)
2013-08-05 15:41:14 -07:00
Kenneth Graunke
4f5e18cb3e Revert "i965: Delete pre-DRI2.3 viewport hacks."
This reverts commit c9db037dc9.

Eric believes that the viewport hacks are still necessary for EGL;
invalidate events aren't hooked up properly.

This commit caused a regression where EFL applications wouldn't show
anything other than window decorations; GLBenchmark also showed issues.

The revert had conflicts due to the intel_context/brw_context merge.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=66606
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 0e9549e2bd)
2013-08-05 15:41:13 -07:00
Paul Berry
e108bb07a0 glsl: Handle empty if statement encountered during loop analysis.
The is_loop_terminator() function was asserting that the following
kind of if statement could never occur:

    if (...) { } else { }

(presumably based on the assumption that such an if statement would be
eliminated by previous optimization stages).  But that isn't the
case--it's possible that previous optimization stages might simplify
more complex code down to this empty if statement, in which case it
won't be eliminated until the next time through the optimization loop.

So is_loop_terminator() needs to handle it.  Fortunately it's easy to
handle--it's not a loop terminator because it does nothing.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=64330
CC: mesa-stable@lists.freedesktop.org

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
(cherry picked from commit a5eecb246d)
2013-08-05 15:41:13 -07:00
Brian Paul
55241e9958 mesa: implement mipmap generation for compressed 2D array textures
We weren't looping over all the slices in the array.  The updated
code should also correctly handle 3D compressed textures too, whenever
we have that feature.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=66850

NOTE: This is a candidate for the 9.x branches
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: José Fonseca <jfonseca@vmware.com>
(cherry picked from commit 8a9df7a370)
2013-08-05 15:41:13 -07:00
Brian Paul
6237090330 meta: handle 2D texture arrays in decompress_texture_image()
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=66850

NOTE: This is a candidate for the 9.x branches.
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: José Fonseca <jfonseca@vmware.com>
(cherry picked from commit 484fa87984)
2013-08-05 15:41:13 -07:00
Brian Paul
55ab069e5f mesa: handle 2D texture arrays in get_tex_rgba_compressed()
If we call glGetTexImage() for a compressed 2D texture array we need
to loop over all the slices.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=66850

NOTE: This is a candidate for the 9.x branches.
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: José Fonseca <jfonseca@vmware.com>
(cherry picked from commit 2931bcb0d2)
2013-08-05 15:41:13 -07:00
Francisco Jerez
925e8a200b clover: Respect kernel argument alignment restrictions.
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
(cherry picked from commit df530829f7)
2013-08-05 15:41:13 -07:00
Francisco Jerez
014b9ceb62 clover: Extend kernel arguments for differing host and device data types.
Loosely based on a similar patch by Tom Stellard.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
(cherry picked from commit f64c0ca692)
2013-08-05 15:41:13 -07:00
Francisco Jerez
8f80e55002 clover: Byte-swap kernel arguments when host and device endianness differ.
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
(cherry picked from commit 829caf410e)
2013-08-05 15:41:13 -07:00
Francisco Jerez
579eae3012 clover: Add kernel argument fields to allow differing host/target data types.
Loosely based on a similar patch by Tom Stellard.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
(cherry picked from commit 2265b40e37)
2013-08-05 15:41:13 -07:00
Francisco Jerez
cb06c9b2aa clover: Pass corresponding module::argument to kernel::argument::bind().
And remove size information from most kernel::argument derived
classes, it's no longer going to be necessary.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
(cherry picked from commit a3dcab43c6)
2013-08-05 15:41:13 -07:00
Tom Stellard
253a4c3e73 clover: Return correct value for CL_DEVICE_ENDIAN_LITTLE
Query the driver using PIPE_CAP_ENDIANNESS rather than always returning
true.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
(cherry picked from commit 8c9d3c62f6)
2013-08-05 15:41:13 -07:00
Tom Stellard
99666d81e4 gallium: Add PIPE_CAP_ENDIANNESS
Cc: mesa-stable@lists.freedesktop.org
[ Francisco Jerez: Fix "PIPE_ENDIAN_SMALL" in the documentation,
  define PIPE_ENDIAN_NATIVE. ]
(cherry picked from commit 4e90bc9a12)
2013-08-05 15:41:12 -07:00
Maarten Lankhorst
e8bc520713 nvc0: force use of correct firmware file
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
(cherry picked from commit e847b5ae06)
2013-08-03 12:54:41 +02:00
Ilia Mirkin
49f40ebefa nv50: fix some h264 interlaced decoding on vp2
Some videos specify mb_adaptive_frame_field_flag instead of
field_pic_flag. This implies that the pic height needs to be halved, and
this field needs to be passed to the VP engine.

Cc: "9.2" mesa-stable@lists.freedesktop.org

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
(cherry picked from commit 8edb79f1ef)
2013-08-03 12:54:20 +02:00
Christoph Bumiller
9b8ad64362 nv50,nvc0: s/uint16/uint32 for constant buffer offset
Looks like a thinko, "Hey, constant buffers can be at most 64 KiB
in size, offset can't be larger." But it can, of course.

I think piglit lacks a test for UBO and BindBufferRange that
tests if it actually works.
2013-07-25 15:55:21 +02:00
Jeremy Huddleston Sequoia
ee421aec32 Apple: glFlush() is not needed with CGLFlushDrawable()
<rdar://problem/14496373>

Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
(cherry picked from commit fa5ed99d8e)
2013-07-20 11:48:44 -07:00
Tomasz Lis
9f07ca11c1 mesa: Dispatch ARB_framebuffer_object and EXT_framebuffer_object differently
Almost all of the functions between the ARB and the EXT share the same
GLX protocol because the functionality is, essentially, identical.
However, there are some differences between the extensions:

- In the ARB extension, names must come from glGenBuffers.

- In the ARB extension, framebuffer objects are not shared (but they are
  in the EXT).

For these reasons, glBindFramebuffer and glBindRenderbuffer have
different GLX protocol opcodes than their EXT counterparts.  Currently
these functions alias each other in the dispatch table.  This makes it
impossible to be truly spec conformant.

This patch enables fixing the conformance issue by splitting
glBindFramebuffer / glBindFramebufferEXT and glBindRenderbuffer /
glBindRenderbufferEXT into separate dispatch table entries.

Patches will be available shortly to:

- Fix the conformance issue.

- Stop advertising the EXT in OpenGL 3.1 (or core profiles).

HOWEVER, this does represent a compatibility break between the loader
(libGL or the Xserver GLX module) and the driver.  Mesa drivers compiled
without this change will request a single dispatch table entry for
glBindFramebuffer and glBindFramebufferEXT.  Since the updated loader
has different entries for each, the request will fail, and the driver
will die in a fire.

Drivers built with the change should continue to load fine on loaders
without the change.  In this case, the driver will separately ask for
entries for glBindFramebuffer and glBindFramebufferEXT, and the loader
will tell it the same location.  Since the loader in the server's GLX
module is not (yet) updated, this should not be a problem.  We also do
not advertise the ARB extension from the server, so, again, this should
not be a problem for the server.

HOWEVER, this means that DRI1 drivers (remember mga_dri.so?) will no
longer load with libGL build hereafter.  That means this patch will need
to be back ported to the 8.0 branch.

v2 (idr): Added missing GLX protocol opcodes for the EXT functions and
corrected the opcodes for the ARB functions.  Updated GLX indirect_api
unit test and dispatch sanity unit test.

Signed-off-by: Tomasz Lis <tomasz.lis@intel.com>
Signed-off-by: Bartosz Zawistowski <bartosz.l.zawistowski@intel.com>
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> [v1]
2013-07-18 17:42:46 -07:00
Kenneth Graunke
adfd0123c8 st/mesa: Enable the ARB_shading_language_420pack extension for 1.30+.
Any driver that supports GLSL 1.30 should be able to handle this
extension, as it's entirely implemented in the GLSL compiler.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Marek Olšák <maraeo@gmail.com>
2013-07-18 16:57:24 -07:00
Kenneth Graunke
46d9baf3e3 i965: Enable the GL_ARB_shading_language_420pack extension on Gen6+.
While all the work is in the shared GLSL compiler, this extension
requires GLSL 1.30, which is currently only supported on Gen6+.

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
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
f25d94084c glsl: Propagate UBO binding qualifier into UBO member variables.
Without an instance name, there is no ir_variable representing the
actual uniform block declaration.  When the linker goes to set uniform
initializers, it only sees the members as ir_variables; never the block.

So, unfortunately, the members need to know about the binding.

There has to be a better way to do this.

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
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
Kenneth Graunke
9a9a830b44 glsl: Cross-validate explicit binding points.
All compilation units need to agree on the binding point, if they
specify one at all.

v2: Use binding, not constant_value.

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
d4375fc016 glsl: Propagate explicit binding information from AST to IR.
Rather than creating a new "binding" field in ir_variable, we reuse
constant_value since the linker code for handling uniform initializers
uses that.

Since UBOs and samplers can't otherwise have initializers/constant
values, there shouldn't be a conflict.

v2: Propagate the new binding variable around too.

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
4da1504c0f glsl: Add ir_variable fields for explicit bindings.
These are not used yet, but they exist and are copied appropriately.

v2: Add an explicit "int binding" variable rather than reusing
    constant_value, as suggested by Paul Berry.

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
5e5e12040b glsl: Add validation for the "binding" qualifier.
The "binding" qualifier only applies to UBO blocks and samplers, along
with arrays of those types.  (It would also apply to images and atomic
counters, but we don't support those yet.)

This also validates sampler bindings against the maximum number of
texture units, and UBO bindings against the number of uniform buffer
binding points.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
2013-07-18 16:57:23 -07:00
Kenneth Graunke
0418846a07 glsl: Parse the "binding" keyword and store it in ast_type_qualifier.
Nothing actually uses this yet.

v2: Remove >= 0 checks.  They'll be handled in later validation.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
2013-07-18 16:57:23 -07:00
Kenneth Graunke
7f6a2d6937 glsl: Have the lexer return LAYOUT_TOK if 420pack is enabled.
GL_ARB_shading_language_420pack also provides layout qualifiers.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
2013-07-18 16:57:23 -07:00
Kenneth Graunke
56bcde34b2 glsl: Use has_layout() rather than a partial open coded version.
The idea of this code is to disallow layout(...) sections with the
deprecated "varying" or "attribute" keywords, unless a few select
extensions are enabled which allow a more relaxed check.

In order to detect a layout(...) section, the code checks for a number
of layout qualifiers.  However, it failed to check for all of them,
which could lead to layout(...) not being detected when it should.

By replacing this with has_layout(), we properly check for all layout
qualifiers, and also guarantees that new qualifiers added in the future
will not be forgotten.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
2013-07-18 16:57:23 -07:00
Kenneth Graunke
c397ec94e9 glsl: Relax auxiliary storage ordering requirements with 420pack.
These were already semi-relaxed, since the storage qualifier rule
already skipped when 420pack was enabled.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2013-07-18 16:57:23 -07:00
Kenneth Graunke
b5d6c51e2b glsl: Handle centroid qualifier ordering in C code, not the parser.
The GL_ARB_shading_language_420pack extension/GLSL 4.20 split centroid
off into a new category, "auxiliary storage qualifiers," and allow these
to be placed anywhere in the series.  So we have to stop recognizing
"centroid in"/"centroid out"/"centroid varying" in the grammar and get
more creative.

The same approach used before works here, too.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2013-07-18 16:57:23 -07:00
Kenneth Graunke
844307a584 glsl: Allow precision qualifiers to be flexibly ordered with 420pack.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2013-07-18 16:57:23 -07:00
Kenneth Graunke
6eec502e84 glsl: Move precision handling to be part of qualifier handling.
This is necessary for the parser to be able to accept precision
qualifiers not immediately adjacent to the type, such as "const highp
inout float foo".

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2013-07-18 16:57:23 -07:00
Kenneth Graunke
308d4c7146 glsl: Change is_precision_statement to default_precision != none.
Currently, we store precision in ast_type_specifier, rather than
ast_type_qualifier.  This works because precision is the last qualifier,
and immediately adjacent to the type.

Default precision statements (such as "precision highp float") are
represented as ast_type_specifier objects, with a boolean to indicate
that it's a default precision statement rather than an ordinary type.

ast_type_specifier::precision will be moving to ast_type_qualifier soon,
in order to support arbitrary qualifier ordering.  However, we still
need to store a "this is a precision statement" flag /and/ the default
precision in ast_type_specifier.

This patch changes the boolean into a new field, default_precision.
If default_precision != ast_precision_none, it's a precision statement
with the specified precision.  Otherwise, it's an ordinary type.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2013-07-18 16:57:23 -07:00
Kenneth Graunke
7855482138 glsl: Disable ordering checks for const parameters with 420pack.
This makes the complier accept both "const in" and "in const".

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2013-07-18 16:57:22 -07:00
Kenneth Graunke
293dfe5738 glsl: Handle "const" as a parameter qualifier.
This will make it easy to support both "const in" and "in const", as
required by GLSL 4.20/ARB_shading_language_420pack.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2013-07-18 16:57:22 -07:00
Kenneth Graunke
a4d15a3cd9 glsl: Refactor parameter qualifier handling.
"Parameter direction qualifier" is a new term I invented just now; it's
not part of any GLSL specification.

This paves the way handling multiple parameter qualifiers, in any order,
as required by GLSL 4.20/ARB_shading_language_420pack.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2013-07-18 16:57:22 -07:00
Kenneth Graunke
83fe4f7019 glsl: Use merge_qualifier() when processing qualifier lists.
Most of ast_type_qualifier is simply a bitfield (represented as a
structure of unsigned:1 bits in a union with an unsigned).  However, it
also contains ARB_explicit_attrib_location's location/index fields.

In the past, this has worked by simply returning the layout qualifier's
ast_type_qualifier and merging the other bits into it.  However, that's
not obvious until you break it by switching $1 and $2.

Using merge_qualifier() copies them appropriately, and also properly
overrides layout qualifiers.  It also checks for duplicate qualifiers,
which renders some of the checks in the previous patch unnecessary.
However, those checks provide better error messages, such as "Duplicate
interpolation qualifier", rather than just "duplicate qualifier".

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2013-07-18 16:57:22 -07:00
Kenneth Graunke
0cb90fcfbd glsl: Allow duplicate layout qualifiers with 420pack.
The new 4.20 rules explicitly allow multiple layout(...) sections.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2013-07-18 16:57:22 -07:00
Kenneth Graunke
89f75e7e7b glsl: Disable ordering checks on most qualifiers for 420pack.
This makes the compiler accept invariant, storage, layout, and
interpolation qualifiers in any order when ARB_shading_language_420pack
is enabled.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2013-07-18 16:57:22 -07:00