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5699220cd5
While writing the link_varyings::single_interface_input test, I discovered that populate_consumer_input_sets assumes that all shader interface blocks have been lowered to discrete variables. Since there is a pass that does this, it is a reasonable assumption. It was, however, non-obvious. Make the code fail when it encounters such a thing, and add a test to verify that behavior. Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
267 lines
8 KiB
C++
267 lines
8 KiB
C++
/*
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* Copyright © 2013 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <gtest/gtest.h>
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#include "main/compiler.h"
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#include "main/mtypes.h"
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#include "main/macros.h"
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#include "ralloc.h"
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#include "ir.h"
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#include "program/hash_table.h"
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/**
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* \file varyings_test.cpp
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*
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* Test various aspects of linking shader stage inputs and outputs.
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*/
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namespace linker {
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bool
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populate_consumer_input_sets(void *mem_ctx, exec_list *ir,
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hash_table *consumer_inputs,
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hash_table *consumer_interface_inputs);
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}
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class link_varyings : public ::testing::Test {
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public:
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link_varyings();
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virtual void SetUp();
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virtual void TearDown();
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char *interface_field_name(const glsl_type *iface, unsigned field = 0)
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{
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return ralloc_asprintf(mem_ctx,
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"%s.%s",
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iface->name,
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iface->fields.structure[field].name);
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}
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void *mem_ctx;
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exec_list ir;
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hash_table *consumer_inputs;
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hash_table *consumer_interface_inputs;
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const glsl_type *simple_interface;
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};
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link_varyings::link_varyings()
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{
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static const glsl_struct_field f[] = {
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{
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glsl_type::vec(4),
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"v",
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false,
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0,
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0,
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0,
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0
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}
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};
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this->simple_interface =
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glsl_type::get_interface_instance(f,
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ARRAY_SIZE(f),
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GLSL_INTERFACE_PACKING_STD140,
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"simple_interface");
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}
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void
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link_varyings::SetUp()
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{
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this->mem_ctx = ralloc_context(NULL);
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this->ir.make_empty();
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this->consumer_inputs
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= hash_table_ctor(0, hash_table_string_hash, hash_table_string_compare);
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this->consumer_interface_inputs
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= hash_table_ctor(0, hash_table_string_hash, hash_table_string_compare);
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}
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void
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link_varyings::TearDown()
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{
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ralloc_free(this->mem_ctx);
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this->mem_ctx = NULL;
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hash_table_dtor(this->consumer_inputs);
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this->consumer_inputs = NULL;
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hash_table_dtor(this->consumer_interface_inputs);
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this->consumer_interface_inputs = NULL;
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}
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/**
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* Hash table callback function that counts the elements in the table
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*
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* \sa num_elements
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*/
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static void
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ht_count_callback(const void *, void *, void *closure)
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{
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unsigned int *counter = (unsigned int *) closure;
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(*counter)++;
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}
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/**
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* Helper function to count the number of elements in a hash table.
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*/
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static unsigned
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num_elements(hash_table *ht)
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{
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unsigned int counter = 0;
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hash_table_call_foreach(ht, ht_count_callback, (void *) &counter);
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return counter;
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}
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/**
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* Helper function to determine whether a hash table is empty.
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*/
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static bool
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is_empty(hash_table *ht)
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{
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return num_elements(ht) == 0;
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}
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TEST_F(link_varyings, single_simple_input)
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{
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ir_variable *const v =
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new(mem_ctx) ir_variable(glsl_type::vec(4),
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"a",
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ir_var_shader_in);
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ir.push_tail(v);
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ASSERT_TRUE(linker::populate_consumer_input_sets(mem_ctx,
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&ir,
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consumer_inputs,
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consumer_interface_inputs));
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EXPECT_EQ((void *) v, hash_table_find(consumer_inputs, "a"));
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EXPECT_EQ(1u, num_elements(consumer_inputs));
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EXPECT_TRUE(is_empty(consumer_interface_inputs));
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}
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TEST_F(link_varyings, gl_ClipDistance)
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{
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const glsl_type *const array_8_of_float =
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glsl_type::get_array_instance(glsl_type::vec(1), 8);
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ir_variable *const clipdistance =
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new(mem_ctx) ir_variable(array_8_of_float,
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"gl_ClipDistance",
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ir_var_shader_in);
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clipdistance->data.explicit_location = true;
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clipdistance->data.location = VARYING_SLOT_CLIP_DIST0;
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clipdistance->data.explicit_index = 0;
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ir.push_tail(clipdistance);
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ASSERT_TRUE(linker::populate_consumer_input_sets(mem_ctx,
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&ir,
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consumer_inputs,
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consumer_interface_inputs));
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EXPECT_EQ((void *) clipdistance,
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hash_table_find(consumer_inputs, "gl_ClipDistance"));
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EXPECT_EQ(1u, num_elements(consumer_inputs));
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EXPECT_TRUE(is_empty(consumer_interface_inputs));
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}
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TEST_F(link_varyings, single_interface_input)
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{
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ir_variable *const v =
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new(mem_ctx) ir_variable(simple_interface->fields.structure[0].type,
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simple_interface->fields.structure[0].name,
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ir_var_shader_in);
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v->init_interface_type(simple_interface);
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ir.push_tail(v);
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ASSERT_TRUE(linker::populate_consumer_input_sets(mem_ctx,
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&ir,
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consumer_inputs,
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consumer_interface_inputs));
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char *const full_name = interface_field_name(simple_interface);
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EXPECT_EQ((void *) v, hash_table_find(consumer_interface_inputs, full_name));
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EXPECT_EQ(1u, num_elements(consumer_interface_inputs));
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EXPECT_TRUE(is_empty(consumer_inputs));
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}
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TEST_F(link_varyings, one_interface_and_one_simple_input)
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{
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ir_variable *const v =
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new(mem_ctx) ir_variable(glsl_type::vec(4),
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"a",
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ir_var_shader_in);
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ir.push_tail(v);
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ir_variable *const iface =
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new(mem_ctx) ir_variable(simple_interface->fields.structure[0].type,
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simple_interface->fields.structure[0].name,
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ir_var_shader_in);
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iface->init_interface_type(simple_interface);
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ir.push_tail(iface);
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ASSERT_TRUE(linker::populate_consumer_input_sets(mem_ctx,
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&ir,
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consumer_inputs,
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consumer_interface_inputs));
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char *const iface_field_name = interface_field_name(simple_interface);
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EXPECT_EQ((void *) iface, hash_table_find(consumer_interface_inputs,
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iface_field_name));
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EXPECT_EQ(1u, num_elements(consumer_interface_inputs));
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EXPECT_EQ((void *) v, hash_table_find(consumer_inputs, "a"));
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EXPECT_EQ(1u, num_elements(consumer_inputs));
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}
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TEST_F(link_varyings, invalid_interface_input)
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{
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ir_variable *const v =
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new(mem_ctx) ir_variable(simple_interface,
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"named_interface",
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ir_var_shader_in);
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ASSERT_EQ(simple_interface, v->get_interface_type());
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ir.push_tail(v);
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EXPECT_FALSE(linker::populate_consumer_input_sets(mem_ctx,
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&ir,
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consumer_inputs,
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consumer_interface_inputs));
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}
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