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glsl/tests: Add first simple tests of populate_consumer_input_sets 

Four initial tests:

* Create an IR list with a single input variable and verify that
  variable is the only thing in the hash tables.

* Same as the previous test, but use a built-in variable
  (gl_ClipDistance) with an explicit location set.

* Create an IR list with a single input variable from an interface block
  and verify that variable is the only thing in the hash tables.

* Create an IR list with a single input variable and a single input
  variable from an interface block.  Verify that each is the only thing
  in the proper hash tables.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
This commit is contained in:
Ian Romanick 2013-10-02 15:44:14 -07:00
parent 8f5852bd2b
commit ba7195d126
2 changed files with 248 additions and 1 deletions
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3
src/glsl/Makefile.am
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@ -61,7 +61,8 @@ tests_general_ir_test_SOURCES = \
$(GLSL_SRCDIR)/standalone_scaffolding.cpp \
tests/builtin_variable_test.cpp \
tests/invalidate_locations_test.cpp \
tests/general_ir_test.cpp
tests/general_ir_test.cpp \
tests/varyings_test.cpp
tests_general_ir_test_CFLAGS = \
$(PTHREAD_CFLAGS)
tests_general_ir_test_LDADD = \

246
src/glsl/tests/varyings_test.cpp Normal file
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@ -0,0 +1,246 @@
/*
* Copyright © 2013 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 <gtest/gtest.h>
#include "main/compiler.h"
#include "main/mtypes.h"
#include "main/macros.h"
#include "ralloc.h"
#include "ir.h"
#include "program/hash_table.h"
/**
* \file varyings_test.cpp
*
* Test various aspects of linking shader stage inputs and outputs.
*/
namespace linker {
void
populate_consumer_input_sets(void *mem_ctx, exec_list *ir,
hash_table *consumer_inputs,
hash_table *consumer_interface_inputs);
}
class link_varyings : public ::testing::Test {
public:
link_varyings();
virtual void SetUp();
virtual void TearDown();
char *interface_field_name(const glsl_type *iface, unsigned field = 0)
{
return ralloc_asprintf(mem_ctx,
"%s.%s",
simple_interface->name,
simple_interface->fields.structure[field].name);
}
void *mem_ctx;
exec_list ir;
hash_table *consumer_inputs;
hash_table *consumer_interface_inputs;
const glsl_type *simple_interface;
};
link_varyings::link_varyings()
{
static const glsl_struct_field f[] = {
{
glsl_type::vec(4),
"v",
false
}
};
this->simple_interface =
glsl_type::get_interface_instance(f,
ARRAY_SIZE(f),
GLSL_INTERFACE_PACKING_STD140,
"simple_interface");
}
void
link_varyings::SetUp()
{
this->mem_ctx = ralloc_context(NULL);
this->ir.make_empty();
this->consumer_inputs
= hash_table_ctor(0, hash_table_string_hash, hash_table_string_compare);
this->consumer_interface_inputs
= hash_table_ctor(0, hash_table_string_hash, hash_table_string_compare);
}
void
link_varyings::TearDown()
{
ralloc_free(this->mem_ctx);
this->mem_ctx = NULL;
hash_table_dtor(this->consumer_inputs);
this->consumer_inputs = NULL;
hash_table_dtor(this->consumer_interface_inputs);
this->consumer_interface_inputs = NULL;
}
/**
* Hash table callback function that counts the elements in the table
*
* \sa num_elements
*/
static void
ht_count_callback(const void *, void *, void *closure)
{
unsigned int *counter = (unsigned int *) closure;
(*counter)++;
}
/**
* Helper function to count the number of elements in a hash table.
*/
static unsigned
num_elements(hash_table *ht)
{
unsigned int counter = 0;
hash_table_call_foreach(ht, ht_count_callback, (void *) &counter);
return counter;
}
/**
* Helper function to determine whether a hash table is empty.
*/
static bool
is_empty(hash_table *ht)
{
return num_elements(ht) == 0;
}
TEST_F(link_varyings, single_simple_input)
{
ir_variable *const v =
new(mem_ctx) ir_variable(glsl_type::vec(4),
"a",
ir_var_shader_in);
ir.push_tail(v);
linker::populate_consumer_input_sets(mem_ctx,
&ir,
consumer_inputs,
consumer_interface_inputs);
EXPECT_EQ((void *) v, hash_table_find(consumer_inputs, "a"));
EXPECT_EQ(1u, num_elements(consumer_inputs));
EXPECT_TRUE(is_empty(consumer_interface_inputs));
}
TEST_F(link_varyings, gl_ClipDistance)
{
const glsl_type *const array_8_of_float =
glsl_type::get_array_instance(glsl_type::vec(1), 8);
ir_variable *const clipdistance =
new(mem_ctx) ir_variable(array_8_of_float,
"gl_ClipDistance",
ir_var_shader_in);
clipdistance->explicit_location = true;
clipdistance->location = VARYING_SLOT_CLIP_DIST0;
clipdistance->explicit_index = 0;
ir.push_tail(clipdistance);
linker::populate_consumer_input_sets(mem_ctx,
&ir,
consumer_inputs,
consumer_interface_inputs);
EXPECT_EQ((void *) clipdistance,
hash_table_find(consumer_inputs, "gl_ClipDistance"));
EXPECT_EQ(1u, num_elements(consumer_inputs));
EXPECT_TRUE(is_empty(consumer_interface_inputs));
}
TEST_F(link_varyings, single_interface_input)
{
ir_variable *const v =
new(mem_ctx) ir_variable(simple_interface->fields.structure[0].type,
simple_interface->fields.structure[0].name,
ir_var_shader_in);
v->interface_type = simple_interface;
ir.push_tail(v);
linker::populate_consumer_input_sets(mem_ctx,
&ir,
consumer_inputs,
consumer_interface_inputs);
char *const full_name = interface_field_name(simple_interface);
EXPECT_EQ((void *) v, hash_table_find(consumer_interface_inputs, full_name));
EXPECT_EQ(1u, num_elements(consumer_interface_inputs));
EXPECT_TRUE(is_empty(consumer_inputs));
}
TEST_F(link_varyings, one_interface_and_one_simple_input)
{
ir_variable *const v =
new(mem_ctx) ir_variable(glsl_type::vec(4),
"a",
ir_var_shader_in);
ir.push_tail(v);
ir_variable *const iface =
new(mem_ctx) ir_variable(simple_interface->fields.structure[0].type,
simple_interface->fields.structure[0].name,
ir_var_shader_in);
iface->interface_type = simple_interface;
ir.push_tail(iface);
linker::populate_consumer_input_sets(mem_ctx,
&ir,
consumer_inputs,
consumer_interface_inputs);
char *const iface_field_name = interface_field_name(simple_interface);
EXPECT_EQ((void *) iface, hash_table_find(consumer_interface_inputs,
iface_field_name));
EXPECT_EQ(1u, num_elements(consumer_interface_inputs));
EXPECT_EQ((void *) v, hash_table_find(consumer_inputs, "a"));
EXPECT_EQ(1u, num_elements(consumer_inputs));
}