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/*
* Copyright © 2017 Collabora Ltd.
*
* This file is part of vkmark.
*
* vkmark is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either
* version 2.1 of the License, or (at your option) any later version.
*
* vkmark is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with vkmark. If not, see <http://www.gnu.org/licenses/>.
*
* Authors:
* Alexandros Frantzis <alexandros.frantzis@collabora.com>
*/
#include "src/window_system_loader.h"
#include "src/window_system.h"
#include "src/options.h"
#include "src/vulkan_wsi.h"
#include "test_window_system_plugin.h"
#include "catch.hpp"
#include <dlfcn.h>
using namespace Catch::Matchers;
namespace
{
class TestWindowSystems
{
public:
TestWindowSystems()
: handles{{open_window_system(1),
open_window_system(2),
open_window_system(3)}}
{
}
void configure_probe(int id, int probe)
{
auto const handle = handles.at(id - 1).get();
auto const configure_probe =
reinterpret_cast<VkMarkTestWindowSystemConfigureProbeFunc>(
dlsym(handle, "vkmark_test_window_system_configure_probe"));
if (!configure_probe)
throw std::runtime_error{"Failed to find configure probe function"};
configure_probe(probe);
}
static std::string name_from_id(int id)
{
return "testws" + std::to_string(id);
}
private:
using LibHandle = std::unique_ptr<void, int(*)(void*)>;
std::array<LibHandle, 3> handles;
LibHandle open_window_system(int id)
{
auto const path = std::string{VKMARK_TEST_WINDOW_SYSTEM_DIR} + "/" +
name_from_id(id) + ".so";
auto const handle = dlopen(path.c_str(), RTLD_LAZY);
if (!handle)
throw std::runtime_error{"Failed to load test window system " + path};
return {handle, dlclose};
}
};
int window_system_id(WindowSystem& ws)
{
return std::stoi(ws.vulkan_wsi().required_extensions().instance[0]);
}
}
SCENARIO("window system loader", "")
{
Options options;
options.window_system_dir = VKMARK_TEST_WINDOW_SYSTEM_DIR;
WindowSystemLoader wsl{options};
TestWindowSystems tws;
GIVEN("Window systems that don't match")
{
tws.configure_probe(1, 0);
tws.configure_probe(2, 0);
tws.configure_probe(3, 0);
WHEN("loading a window system")
{
THEN("no window system is loaded")
{
REQUIRE_THROWS(wsl.load_window_system());
}
}
}
GIVEN("A window system that is the best match")
{
tws.configure_probe(1, 127);
tws.configure_probe(2, 255);
tws.configure_probe(3, 0);
WHEN("loading a window system")
{
auto& ws = wsl.load_window_system();
THEN("the best window system is loaded")
{
REQUIRE(window_system_id(ws) == 2);
}
}
}
GIVEN("Multiple window systems that are best matches")
{
tws.configure_probe(1, 127);
tws.configure_probe(2, 255);
tws.configure_probe(3, 255);
WHEN("loading a window system")
{
auto& ws = wsl.load_window_system();
THEN("any of the best matches is loaded")
{
REQUIRE((window_system_id(ws) == 2 ||
window_system_id(ws) == 3));
}
}
}
}
SCENARIO("window system loader with user preference", "")
{
Options options;
options.window_system_dir = VKMARK_TEST_WINDOW_SYSTEM_DIR;
TestWindowSystems tws;
tws.configure_probe(1, 127);
tws.configure_probe(2, 255);
tws.configure_probe(3, 0);
GIVEN("A user prefers an existing usable window system")
{
options.window_system = tws.name_from_id(1);
WHEN("loading a window system")
{
WindowSystemLoader wsl{options};
auto& ws = wsl.load_window_system();
THEN("the user preferred one is loaded")
{
REQUIRE(window_system_id(ws) == 1);
}
}
}
GIVEN("A user prefers an existing unusable window system")
{
options.window_system = tws.name_from_id(3);
WHEN("loading a window system")
{
WindowSystemLoader wsl{options};
auto& ws = wsl.load_window_system();
THEN("the user preferred one is loaded")
{
REQUIRE(window_system_id(ws) == 3);
}
}
}
GIVEN("A user prefers a non-existent window system")
{
options.window_system = "invalid";
WHEN("loading a window system")
{
WindowSystemLoader wsl{options};
THEN("no window system is loaded")
{
REQUIRE_THROWS(wsl.load_window_system());
}
}
}
}
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