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/*
* Copyright © 2015 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 2 or 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: Kevin DuBois <kevin.dubois@canonical.com>
*/
#include "mir_toolkit/mir_client_library.h"
#include "mir_test_framework/connected_client_with_a_window.h"
#include "mir/compositor/display_buffer_compositor.h"
#include "mir/compositor/display_buffer_compositor_factory.h"
#include "mir/compositor/scene_element.h"
#include "mir/compositor/compositor.h"
#include "mir/graphics/renderable.h"
#include <mutex>
#include <condition_variable>
#include <gtest/gtest.h>
#include <gmock/gmock.h>
namespace mtf = mir_test_framework;
namespace geom = mir::geometry;
namespace mc = mir::compositor;
namespace mg = mir::graphics;
namespace
{
struct size_less
{
bool operator() (geom::Size const& a, geom::Size const& b)
{
return a.width < b.width && a.height < b.height;
}
};
struct CompositionTracker
{
bool wait_until_surface_is_rendered_with_size(geom::Size sz)
{
using namespace std::literals::chrono_literals;
std::unique_lock<decltype(mutex)> lk(mutex);
return cv.wait_for(lk, 4s, [this, sz] {
return std::find(rendered_sizes.begin(), rendered_sizes.end(), sz) != rendered_sizes.end();
});
}
void surface_rendered_with_size(geom::Size sz)
{
std::unique_lock<decltype(mutex)> lk(mutex);
rendered_sizes.emplace(sz);
cv.notify_all();
}
private:
std::set<geom::Size, size_less> rendered_sizes;
std::mutex mutex;
std::condition_variable cv;
};
struct CustomDBC : mc::DisplayBufferCompositor
{
CustomDBC(std::shared_ptr<CompositionTracker> const& tracker) :
tracker(tracker)
{
}
void composite(mc::SceneElementSequence&& sequence) override
{
for(auto const& element : sequence)
{
auto renderable = element->renderable();
renderable->buffer(); //consume buffer to stop compositor from spinning
tracker->surface_rendered_with_size(renderable->screen_position().size);
}
}
private:
std::shared_ptr<CompositionTracker> const tracker;
};
struct CustomDBCFactory : mc::DisplayBufferCompositorFactory
{
CustomDBCFactory(std::shared_ptr<CompositionTracker> const& tracker) :
tracker(tracker)
{
}
std::unique_ptr<mc::DisplayBufferCompositor> create_compositor_for(mg::DisplayBuffer&) override
{
return std::make_unique<CustomDBC>(tracker);
}
private:
std::shared_ptr<CompositionTracker> const tracker;
};
struct DisplayBufferCompositorOverride : mtf::ConnectedClientWithAWindow
{
void SetUp() override
{
using namespace std::literals::chrono_literals;
server.override_the_display_buffer_compositor_factory([this]
{
return std::make_shared<CustomDBCFactory>(tracker);
});
mtf::ConnectedClientWithAWindow::SetUp();
}
void TearDown() override
{
mtf::ConnectedClientWithAWindow::TearDown();
}
protected:
std::shared_ptr<CompositionTracker> const tracker{std::make_shared<CompositionTracker>()};
};
}
TEST_F(DisplayBufferCompositorOverride, composite_called_with_surface)
{
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
MirWindowParameters surface_params;
mir_window_get_parameters(window, &surface_params);
mir_buffer_stream_swap_buffers_sync(mir_window_get_buffer_stream(window));
#pragma GCC diagnostic pop
EXPECT_TRUE(tracker->wait_until_surface_is_rendered_with_size({surface_params.width, surface_params.height}));
}
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