From: Andrii Simiklit <andrii.simik...@globallogic.com>
It fixes a bit incorrectly implemented ARB_program_interface_query.
If input aoa element is unused in shader program
the 'glGetProgramResourceIndex' function shouldn't
return a valid resource index for it according to:
ARB_program_interface_query spec:
" For an active variable declared as an array of an aggregate data type
(structures or arrays), a separate entry will be generated for each
active array element"
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92822
Signed-off-by: Andrii Simiklit <andrii.simik...@globallogic.com>
---
src/compiler/Makefile.sources | 4 +-
.../glsl/ir_collect_active_aoa_elements.cpp | 148 +++++++++++++++++++++
src/compiler/glsl/ir_collect_active_aoa_elements.h | 49 +++++++
src/compiler/glsl/linker.cpp | 75 +++++++++--
src/compiler/glsl/meson.build | 2 +
5 files changed, 265 insertions(+), 13 deletions(-)
create mode 100644 src/compiler/glsl/ir_collect_active_aoa_elements.cpp
create mode 100644 src/compiler/glsl/ir_collect_active_aoa_elements.h
diff --git a/src/compiler/Makefile.sources b/src/compiler/Makefile.sources
index d3b0656..a2ba3e3 100644
--- a/src/compiler/Makefile.sources
+++ b/src/compiler/Makefile.sources
@@ -154,7 +154,9 @@ LIBGLSL_FILES = \
glsl/serialize.cpp \
glsl/serialize.h \
glsl/string_to_uint_map.cpp \
- glsl/string_to_uint_map.h
+ glsl/string_to_uint_map.h \
+ glsl/ir_collect_active_aoa_elements.cpp \
+ glsl/ir_collect_active_aoa_elements.h
LIBGLSL_SHADER_CACHE_FILES = \
glsl/shader_cache.cpp \
diff --git a/src/compiler/glsl/ir_collect_active_aoa_elements.cpp
b/src/compiler/glsl/ir_collect_active_aoa_elements.cpp
new file mode 100644
index 0000000..50042c7
--- /dev/null
+++ b/src/compiler/glsl/ir_collect_active_aoa_elements.cpp
@@ -0,0 +1,148 @@
+/*
+ * Copyright © 2018 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "ir_collect_active_aoa_elements.h"
+#include "program.h"
+#include "linker_util.h"
+#include "util/set.h"
+#include "util/u_dynarray.h"
+
+namespace
+{
+ /***
+ * Helps to collect the names of used aoa elements
+ * to the accessed_elements set
+ ***/
+ struct elem_inserter
+ {
+ elem_inserter(struct set *accessed_elements_)
+ : accessed_elements(accessed_elements_)
+ {}
+ void operator ()(const char *name)
+ {
+ if (NULL == _mesa_set_search(accessed_elements, name)) {
+ _mesa_set_add(accessed_elements, name);
+ }
+ }
+ struct set *accessed_elements;
+ };
+
+ bool
+ ir_is_array_deref(ir_rvalue *const ir)
+ {
+ return (ir_type_dereference_array == ir->ir_type);
+ }
+
+ ir_variable *
+ base_ir_dereference_var(ir_dereference_array *const ir)
+ {
+ ir_dereference_array const *base_ir = ir;
+ while (ir_type_dereference_array == base_ir->array->ir_type) {
+ base_ir = base_ir->array->as_dereference_array();
+ assert(NULL != base_ir);
+ }
+
+ ir_dereference_variable *const d =
+ base_ir->array->as_dereference_variable();
+ return (NULL == d) ? NULL : d->var;
+ }
+}
+/**
+ * Helps to produce all combinations of used aoa elements
+ * for cases with constant and variable index.
+ **/
+template <typename FunctorType>
+inline void enumiramte_active_elements(void *memctx,
+ ir_dereference_array **first,
+ ir_dereference_array **item,
+ const char *accessed_elem_name,
+ FunctorType functor)
+{
+ if(item == (first - 1)) {
+ functor(accessed_elem_name);
+ return;
+ }
+
+ ir_dereference_array *const deref = (*item);
+ ir_constant const *const idx = deref->array_index->as_constant();
+ if (NULL != idx) {
+ const unsigned uidx = idx->get_uint_component(0U);
+ char *elem = ralloc_asprintf(memctx, "%s[%u]",
+ accessed_elem_name, uidx);
+ enumiramte_active_elements(memctx, first, item - 1, elem, functor);
+ }
+ else {
+ for (unsigned i = 0U; i < deref->type->length; ++i) {
+ char *elem = ralloc_asprintf(memctx, "%s[%u]",
+ accessed_elem_name, i);
+ enumiramte_active_elements(memctx, first, item - 1, elem, functor);
+ }
+ }
+}
+
+ir_visitor_status
+ir_collect_active_aoa_elements::visit_enter(ir_dereference_array *ir)
+{
+ if (!ir_is_array_deref(ir->array))
+ return visit_continue;
+
+ last_array_deref = ir;
+ if (last_array_deref && last_array_deref->array == ir)
+ return visit_continue;
+
+ ir_variable *const var = base_ir_dereference_var(ir);
+ if (!var)
+ return visit_continue;
+
+ struct util_dynarray indexes;
+ util_dynarray_init(&indexes, NULL);
+ /* The first element it is dereference
+ * of regular array not aoa so skip it.
+ * All the dereference which are stored in
+ * the IR tree are storead as in the following instance:
+ *
+ * gl_Position = myarr[5][3][1];
+ *
+ * The first dereference will have an array_index = [1]
+ * The second dereference will have an array_index = [3]
+ * The third dereference will have an array_index = [5]
+ * So we need to traverse over the elements in the reverse direction
+ * to enumerate all combinations of used aoa elements.
+ */
+ ir_rvalue *it = ir->array;
+ while (ir_is_array_deref(it)) {
+ ir_dereference_array *deref = it->as_dereference_array();
+ assert(NULL != deref);
+ assert(deref->array->type->is_array());
+ util_dynarray_append(&indexes, ir_dereference_array*, deref);
+ it = deref->array;
+ }
+ ir_dereference_array **last = util_dynarray_top_ptr(&indexes,
+ ir_dereference_array*);
+ ir_dereference_array **first = util_dynarray_element(&indexes,
+ ir_dereference_array*, 0);
+ enumiramte_active_elements(memctx, first, last, var->name,
+ elem_inserter(accessed_elements));
+ util_dynarray_fini(&indexes);
+ return visit_continue_with_parent;
+}
\ No newline at end of file
diff --git a/src/compiler/glsl/ir_collect_active_aoa_elements.h
b/src/compiler/glsl/ir_collect_active_aoa_elements.h
new file mode 100644
index 0000000..fb8a8cd
--- /dev/null
+++ b/src/compiler/glsl/ir_collect_active_aoa_elements.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright © 2018 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef IR_COLLECT_ACTIVE_AOA_ELEMENTS_H
+#define IR_COLLECT_ACTIVE_AOA_ELEMENTS_H
+
+#include "ir.h"
+#include "util/hash_table.h"
+
+class ir_collect_active_aoa_elements : public ir_hierarchical_visitor {
+public:
+ ir_collect_active_aoa_elements(void *memctx_,
+ struct set *accessed_elements_)
+ : memctx(memctx_),
+ accessed_elements(accessed_elements_),
+ last_array_deref(0)
+ {
+ }
+ virtual ir_visitor_status visit_enter(ir_dereference_array *);
+private:
+ void *memctx;
+ struct set *accessed_elements;
+ /**
+ * Used to prevent some redundant calculations.
+ */
+ ir_dereference_array *last_array_deref;
+};
+
+#endif /* IR_COLLECT_ACTIVE_AOA_ELEMENTS_H */
diff --git a/src/compiler/glsl/linker.cpp b/src/compiler/glsl/linker.cpp
index f08971d..8159404 100644
--- a/src/compiler/glsl/linker.cpp
+++ b/src/compiler/glsl/linker.cpp
@@ -84,6 +84,7 @@
#include "builtin_functions.h"
#include "shader_cache.h"
#include "util/u_string.h"
+#include "ir_collect_active_aoa_elements.h"
#include "main/imports.h"
#include "main/shaderobj.h"
@@ -93,6 +94,24 @@
namespace {
+struct set * find_active_aoa_elements(void *mem_ctx,
+ gl_linked_shader * linked_shader)
+{
+ struct set *active_aoa_elems =
+ _mesa_set_create(mem_ctx, _mesa_key_hash_string,
+ _mesa_key_string_equal);
+ ir_collect_active_aoa_elements v(mem_ctx, active_aoa_elems);
+ visit_list_elements(&v, linked_shader->ir);
+#if 0
+ set_entry *entry;
+ /* Print the active array of arrays "aoa" elements */
+ set_foreach(active_aoa_elems, entry)
+ {
+ fprintf(stderr, "used aoa element : %s\n", (const char *)entry->key);
+ }
+#endif
+ return active_aoa_elems;
+}
struct find_variable {
const char *name;
bool found;
@@ -3819,7 +3838,8 @@ add_shader_variable(const struct gl_context *ctx,
const char *name, const glsl_type *type,
bool use_implicit_location, int location,
bool inouts_share_location,
- const glsl_type *outermost_struct_type = NULL)
+ const glsl_type *outermost_struct_type = NULL,
+ struct set *active_aoa_elems = NULL)
{
const glsl_type *interface_type = var->get_interface_type();
@@ -3881,7 +3901,8 @@ add_shader_variable(const struct gl_context *ctx,
stage_mask, programInterface,
var, field_name, field->type,
use_implicit_location, field_location,
- false, outermost_struct_type))
+ false, outermost_struct_type,
+ NULL))
return false;
field_location += field->type->count_attribute_slots(false);
@@ -3908,17 +3929,36 @@ add_shader_variable(const struct gl_context *ctx,
const struct glsl_type *array_type = type->fields.array;
if (array_type->base_type == GLSL_TYPE_STRUCT ||
array_type->base_type == GLSL_TYPE_ARRAY) {
+ const bool is_aoa = (array_type->fields.array->base_type ==
+ GLSL_TYPE_ARRAY);
unsigned elem_location = location;
unsigned stride = inouts_share_location ? 0 :
array_type->count_attribute_slots(false);
for (unsigned i = 0; i < type->length; i++) {
char *elem = ralloc_asprintf(shProg, "%s[%d]", name, i);
- if (!add_shader_variable(ctx, shProg, resource_set,
- stage_mask, programInterface,
- var, elem, array_type,
- use_implicit_location, elem_location,
- false, outermost_struct_type))
- return false;
+ /*if next type has an array type
+ * the aoa elem name is not completed yet
+ * and we will just come here again
+ **/
+ const bool acceptable = is_aoa ||
+ /* if active_aoa_elems is NULL it will work as was */
+ !active_aoa_elems ||
+ /* if this aoa element is used
+ * it can be added as resource
+ * otherwise shouldn't be added
+ **/
+ _mesa_set_search(active_aoa_elems, elem) != NULL;
+
+ if(acceptable)
+ {
+ if (!add_shader_variable(ctx, shProg, resource_set,
+ stage_mask, programInterface,
+ var, elem, array_type,
+ use_implicit_location, elem_location,
+ false, outermost_struct_type,
+ active_aoa_elems))
+ return false;
+ }
elem_location += stride;
}
return true;
@@ -3964,7 +4004,8 @@ static bool
add_interface_variables(const struct gl_context *ctx,
struct gl_shader_program *shProg,
struct set *resource_set,
- unsigned stage, GLenum programInterface)
+ unsigned stage, GLenum programInterface,
+ struct set *active_aoa_elems)
{
exec_list *ir = shProg->_LinkedShaders[stage]->ir;
@@ -4017,7 +4058,9 @@ add_interface_variables(const struct gl_context *ctx,
1 << stage, programInterface,
var, var->name, var->type,
vs_input_or_fs_output,
var->data.location - loc_bias,
- inout_has_same_location(var, stage)))
+ inout_has_same_location(var, stage),
+ NULL,
+ active_aoa_elems))
return false;
}
return true;
@@ -4354,15 +4397,22 @@ build_program_resource_list(struct gl_context *ctx,
if (!add_fragdata_arrays(ctx, shProg, resource_set))
return;
+ // temporary mem context for program res building
+ void *res_build_mem_ctx = ralloc_context(NULL);
+ struct set *active_aoa_elems = find_active_aoa_elements(res_build_mem_ctx,
+ shProg->_LinkedShaders[input_stage]);
/* Add inputs and outputs to the resource list. */
if (!add_interface_variables(ctx, shProg, resource_set,
- input_stage, GL_PROGRAM_INPUT))
+ input_stage, GL_PROGRAM_INPUT,
+ active_aoa_elems))
return;
if (!add_interface_variables(ctx, shProg, resource_set,
- output_stage, GL_PROGRAM_OUTPUT))
+ output_stage, GL_PROGRAM_OUTPUT,
+ active_aoa_elems))
return;
+
if (shProg->last_vert_prog) {
struct gl_transform_feedback_info *linked_xfb =
shProg->last_vert_prog->sh.LinkedTransformFeedback;
@@ -4477,6 +4527,7 @@ build_program_resource_list(struct gl_context *ctx,
}
_mesa_set_destroy(resource_set, NULL);
+ ralloc_free(res_build_mem_ctx);
}
/**
diff --git a/src/compiler/glsl/meson.build b/src/compiler/glsl/meson.build
index 7e4dd29..fffae24 100644
--- a/src/compiler/glsl/meson.build
+++ b/src/compiler/glsl/meson.build
@@ -198,6 +198,8 @@ files_libglsl = files(
'serialize.h',
'shader_cache.cpp',
'shader_cache.h',
+ 'ir_collect_active_aoa_elements.cpp',
+ 'ir_collect_active_aoa_elements.h',
)
files_libglsl_standalone = files(
--
2.7.4
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