When writing to a column of a row-major matrix, each component of the
vector is stored to non-consecutive memory addresses, so we generate
one instruction per component.
This patch skips the disabled components in the writemask, saving some
store instructions plus avoid storing wrong data on each disabled
component.
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Fixes a failing subtest in:
ES31-CTS.shader_storage_buffer_object.negative-glsl-compileTime
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
We may want to use different type_size functions for (e.g.) inputs
vs. uniforms. Passing in -1 for mode ignores this, handling all
modes as before.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
From GLSL 1.50 spec, section 4.1.8 "Structures":
"Structures must have at least one member declaration."
So the base_alignment should be higher than zero.
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
From ARB_program_interface_query:
"For an active shader storage block member declared as an array, an
entry will be generated only for the first array element, regardless
of its type. For arrays of aggregate types, the enumeration rules are
applied recursively for the single enumerated array element."
v2:
- Simplify 'if' conditions and return true if it is not a buffer
variable, because these rules only apply to buffer variables (Timothy).
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Timothy Arceri <t_arceri@yahoo.com.au>
This matches the function signature created in
lower_ubo_reference_visitor::ssbo_store which has a void return.
Suggested-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
At least on Intel hardware, gl_PrimitiveIDIn comes in as a special part
of the payload rather than a normal input. This is typically what we
use system values for. Dave and Ilia also agree that a system value
would be nicer.
At some point, we should change it at the GLSL IR level as well. But
that requires changing most of the drivers. For now, let's at least
make NIR do the right thing, which is easy.
v2: Add a comment about not creating a temporary (suggested by Iago).
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
The comment says that it should be impossible for decl_type to be NULL
here, so don't try to handle the case where it is, simply add an assert.
>>> CID 1324977: Null pointer dereferences (FORWARD_NULL)
>>> Comparing "decl_type" to null implies that "decl_type" might be null.
No piglit regressions observed.
Reviewed-by: Timothy Arceri <t_arceri@yahoo.com.au>
Add an assert on the result of as_dereference() not being NULL:
>>> CID 1324978: Null pointer dereferences (NULL_RETURNS)
>>> Dereferencing a null pointer "deref_record->record->as_dereference()".
Since we are introducing a new variable to hold the result of
as_dereference(), take the opportunity to rename deref_record_type to
interface_type and just name the new variable interface_deref, which is
less confusing.
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
We don't use param in this part of the code, so no point in advancing
the pointer forward:
>>> CID 1324983: Code maintainability issues (UNUSED_VALUE)
>>> Assigning value from "param->get_next()" to "param" here, but that stored value is overwritten before it can be used.
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Because it counts shader storage blocks too.
v2:
- Use NumBufferInterfaceBlocks instead (Jordan).
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
This reverts commit 586142658e.
The specs are not explicit about any restrictions related to the types allowed
on buffer variables, however, the description of opaque types (like atomic
counters) is in conclict with the purpose of buffer variables:
"The opaque types declare variables that are effectively opaque
handles to other objects. These objects are
accessed through built-in functions, not through direct reading or
writing of the declared variable.
(...)
Opaque variables cannot be treated as l-values;(...)"
Also, Mesa is already disallowing opaque types in interface blocks anyway, so
that commit was not really achieving anything.
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Some hardware (such as Broadwell) can run geometry shaders more
efficiently when the number of vertices emitted is statically known.
This pass provides a way to obtain the constant vertex count, or
-1 indicating that the vertex count is unknown/non-constant.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Commit 1ca25ab (glsl: Do not eliminate 'shared' or 'std140' blocks
or block members) considered as active 'shared' and 'std140' uniform
blocks and uniform block arrays, but did not include the block array
elements. Because of that, it was possible to have an active uniform
block array without any elements marked as used, making the assertion
((b->num_array_elements > 0) == b->type->is_array())
in link_uniform_blocks() fail.
Fixes the following 5 dEQP tests:
* dEQP-GLES3.functional.ubo.random.nested_structs_instance_arrays.18
* dEQP-GLES3.functional.ubo.random.nested_structs_instance_arrays.24
* dEQP-GLES3.functional.ubo.random.nested_structs_arrays_instance_arrays.19
* dEQP-GLES3.functional.ubo.random.all_per_block_buffers.49
* dEQP-GLES3.functional.ubo.random.all_shared_buffer.36
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=83508
Tested-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Timothy Arceri <t_arceri@yahoo.com.au>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Including TOP_LEVEL_ARRAY_SIZE and TOP_LEVEL_ARRAY_STRIDE queries.
v2:
- Use std430_array_stride() to get top level array stride following std430's rules.
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
The error location won't be right, but fixing that would require to check
for this as we process each type of AST node that can involve a variable
read.
v2:
- Limit the check to buffer variables, image variables have different
semantics involved.
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
v2:
- Merge the error check for the readonly qualifier with the already
existing check for variables flagged as readonly (Timothy).
- Limit the check to buffer variables, image variables have different
semantics involved (Curro).
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
v2:
- Memory qualifiers on shader storage buffer objects do not come in the form
of layout qualifiers, they are block-level qualifiers.
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
v2:
- Save memory qualifier info in the top level members of a shader
storage block.
- Add a checks to record_compare() which is used when comparing
shader storage buffer declarations in different shaders.
- Always report an error for incompatible readonly/writeonly
definitions, whether they are present at block or field level.
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
v2:
- Add ssbo_in the names of the static functions so it is clear that this
is specific to SSBO atomics.
v3:
- Move the check after the loop (Kristian Høgsberg)
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
The original GLSL IR intrinsics have been lowered to an internal
version that accepts a block index and an offset instead of a
SSBO reference.
v2 (Connor):
- Document the sources used by the atomic intrinsics.
Reviewed-by: Connor Abbott <connor.w.abbott@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
The first argument to SSBO atomics is a reference to a SSBO buffer variable
so we want to compute its block index and offset and provide these values
to an internal version of the intrinsic that takes them instead of the
buffer variable reference.
v2:
- Support single components of integer vectors to be passed in as arguments.
- Get interface packing information from interface's type.
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
In a later commit we will need to handle ir_swizzle nodes too, which are
not an ir_dereference. That can happen, for example, when we pass a
component of an integer vector as argument to any of the SSBO atomic
functions.
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Shader Storage Buffer Object will add new atomic functions that are not
associated with counters, so better have atomic counter-specific functions
explicitly include the word "counter" in their names.
Reviewed-by: Timothy Arceri <t_arceri@yahoo.com.au>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
This patch moves nir_instr_insert_after_cf_list call into each case
in the intrinsics switch at nir_visitor::visit(ir_call *ir) and
define a nir_dest variable which will be used when handling
ir->return_deref after the switch.
This patch simplifies the code for nir_intrinsic_load_ssbo
implementation changes we are going to do next.
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
v2 (Connor):
- Make the STORE() macro take arguments for the extra sources (and their
size) and any extra indices required.
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Notice that we should differentiate between shader storage blocks and
uniform blocks, since they have different limits.
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Otherwise, generate a link time error as per the
ARB_shader_storage_buffer_object spec.
v2:
- Fix error message (Jordan)
v3:
- Move std140_size() changes to its own patch (Kristian)
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
v2:
- Get interface packing information from interface's type, not the
variable type.
- Simplify is_std430 condition in emit_access() for readability (Jordan)
- Add a commment explaing why array of three-component vector case is
different in std430 than the rest of cases.
- Add calls to std430_array_stride().
v3:
- Simplify size_mul change for std430's case (Jordan)
- Fix commit log lines length (Jordan)
- Pass 'packing' instead of 'is_std430' to emit_access() (Kristian)
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
They are used to calculate the offset, array stride of uniform/shader
storage buffer variables. Take into account this info to get the right
value for std430.
v2:
- Fix commit log line length and indention. (Jordan)
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
v2:
- Fix a missing check in has_layout()
v3:
- Mention shader storage block in error message for layout qualifiers
(Kristian).
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
They are used to calculate size, base alignment and array stride values
for a glsl_type following std430 rules.
v2:
- Paste OpenGL 4.3 spec wording as it mentions stride of array. (Jordan)
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
This kind of definitions:
layout(xxx) buffer;
was not supported by commit 84fc5fece0.
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
