Timothy Arceri
c1bbaff1e8
All interface blocks will have been lowered by this point so just use an assert. Returning false would have caused all sorts of problems if they were not lowered yet and there is an assert to catch this later anyway. We also update the tests to reflect this change. Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
332 lines
10 KiB
C++
332 lines
10 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 "util/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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ir_variable *consumer_inputs_with_locations[VARYING_SLOT_MAX]);
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ir_variable *
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get_matching_input(void *mem_ctx,
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const ir_variable *output_var,
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hash_table *consumer_inputs,
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hash_table *consumer_interface_inputs,
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ir_variable *consumer_inputs_with_locations[VARYING_SLOT_MAX]);
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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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ir_variable *junk[VARYING_SLOT_TESS_MAX];
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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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glsl_struct_field(glsl_type::vec(4), "v")
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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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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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junk);
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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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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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junk);
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EXPECT_EQ(clipdistance, junk[VARYING_SLOT_CLIP_DIST0]);
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EXPECT_TRUE(is_empty(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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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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junk);
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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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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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junk);
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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, interface_field_doesnt_match_noninterface)
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{
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char *const iface_field_name = interface_field_name(simple_interface);
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/* The input shader has a single input variable name "a.v"
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*/
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ir_variable *const in_v =
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new(mem_ctx) ir_variable(glsl_type::vec(4),
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iface_field_name,
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ir_var_shader_in);
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ir.push_tail(in_v);
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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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junk);
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/* Create an output variable, "v", that is part of an interface block named
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* "a". They should not match.
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*/
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ir_variable *const out_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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out_v->init_interface_type(simple_interface);
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ir_variable *const match =
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linker::get_matching_input(mem_ctx,
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out_v,
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consumer_inputs,
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consumer_interface_inputs,
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junk);
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EXPECT_EQ(NULL, match);
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}
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TEST_F(link_varyings, interface_field_doesnt_match_noninterface_vice_versa)
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{
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char *const iface_field_name = interface_field_name(simple_interface);
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/* In input shader has a single variable, "v", that is part of an interface
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* block named "a".
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*/
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ir_variable *const in_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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in_v->init_interface_type(simple_interface);
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ir.push_tail(in_v);
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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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junk);
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/* Create an output variable "a.v". They should not match.
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*/
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ir_variable *const out_v =
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new(mem_ctx) ir_variable(glsl_type::vec(4),
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iface_field_name,
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ir_var_shader_out);
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ir_variable *const match =
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linker::get_matching_input(mem_ctx,
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out_v,
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consumer_inputs,
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consumer_interface_inputs,
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junk);
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EXPECT_EQ(NULL, match);
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}
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