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/*
* Copyright © 2014 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authored by: Robert Carr <robert.carr@canonical.com>
*/
#include "touch_measuring_client.h"
#include "mir/time/clock.h"
#include "mir_toolkit/mir_client_library.h"
#include <iostream>
namespace mt = mir::test;
namespace
{
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
MirWindow *create_window(MirConnection *connection)
{
MirPixelFormat pixel_format;
unsigned int valid_formats;
mir_connection_get_available_surface_formats(connection, &pixel_format, 1, &valid_formats);
auto const spec = mir_create_normal_window_spec(connection, 1024, 1024);
mir_window_spec_set_pixel_format(spec, pixel_format);
mir_window_spec_set_name(spec, "frame-uniformity-test");
mir_window_spec_set_buffer_usage(spec, mir_buffer_usage_hardware);
auto window = mir_create_window_sync(spec);
mir_window_spec_release(spec);
if (!mir_window_is_valid(window))
{
std::cerr << "Window creation failed: " << mir_window_get_error_message(window) << std::endl;
exit(1);
}
return window;
}
void input_callback(MirWindow * /* surface */, MirEvent const* event, void* context)
{
auto results = static_cast<TouchSamples*>(context);
results->record_pointer_coordinates(std::chrono::high_resolution_clock::now(), *event);
}
void collect_input_and_frame_timing(MirWindow *surface, mt::Barrier& client_ready, std::chrono::high_resolution_clock::duration duration, std::shared_ptr<TouchSamples> const& results)
{
mir_window_set_event_handler(surface, input_callback, results.get());
client_ready.ready();
// May be better if end time were relative to the first input event
auto end_time = std::chrono::high_resolution_clock::now() + duration;
while (std::chrono::high_resolution_clock::now() < end_time)
{
mir_buffer_stream_swap_buffers_sync(mir_window_get_buffer_stream(surface));
results->record_frame_time(std::chrono::high_resolution_clock::now());
}
}
#pragma GCC diagnostic pop
}
TouchMeasuringClient::TouchMeasuringClient(mt::Barrier& client_ready,
std::chrono::high_resolution_clock::duration const& touch_duration)
: client_ready(client_ready),
touch_duration(touch_duration),
results_(std::make_shared<TouchSamples>())
{
}
namespace
{
void null_lifecycle_callback(MirConnection*, MirLifecycleState, void*)
{
}
}
void TouchMeasuringClient::run(std::string const& connect_string)
{
auto connection = mir_connect_sync(connect_string.c_str(), "frame-uniformity-test");
if (!mir_connection_is_valid(connection))
{
std::cerr << "Connection to Mir failed: " << mir_connection_get_error_message(connection) << std::endl;
exit(1);
}
/*
* Set a null callback to avoid killing the process
* (default callback raises SIGHUP).
*/
mir_connection_set_lifecycle_event_callback(connection, null_lifecycle_callback, nullptr);
auto window = create_window(connection);
collect_input_and_frame_timing(window, client_ready, touch_duration, results_);
mir_window_release_sync(window);
mir_connection_release(connection);
}
std::shared_ptr<TouchSamples> TouchMeasuringClient::results()
{
return results_;
}
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