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/*
* Copyright © 2013-2015 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 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>
* Alexandros Frantzis <alexandros.frantzis@canonical.com>
*/
#include "mir/scene/buffer_stream_factory.h"
#include "mir/test/doubles/stub_buffer_stream.h"
#include "mir_test_framework/any_surface.h"
#include "mir_test_framework/basic_client_server_fixture.h"
#include "mir_test_framework/testing_server_configuration.h"
#include "mir_toolkit/mir_client_library.h"
#include <gtest/gtest.h>
#include <atomic>
namespace mtf = mir_test_framework;
namespace mtd = mir::test::doubles;
namespace ms = mir::scene;
namespace mg = mir::graphics;
namespace mc = mir::compositor;
namespace mf = mir::frontend;
namespace
{
class StubBufferStream : public mtd::StubBufferStream
{
public:
StubBufferStream(std::atomic<bool>& framedropping_enabled)
: framedropping_enabled{framedropping_enabled}
{
}
void allow_framedropping(bool allow) override
{
framedropping_enabled = allow;
}
private:
std::atomic<bool>& framedropping_enabled;
};
class StubBufferStreamFactory : public ms::BufferStreamFactory
{
public:
StubBufferStreamFactory(std::atomic<bool>& framedropping_enabled)
: framedropping_enabled{framedropping_enabled}
{
}
std::shared_ptr<mc::BufferStream> create_buffer_stream(
mf::BufferStreamId id, std::shared_ptr<mf::ClientBuffers> const& sink,
int, mg::BufferProperties const& p) override
{
return create_buffer_stream(id, sink, p);
}
std::shared_ptr<mc::BufferStream> create_buffer_stream(
mf::BufferStreamId, std::shared_ptr<mf::ClientBuffers> const&,
mg::BufferProperties const&) override
{
return std::make_shared<StubBufferStream>(framedropping_enabled);
}
std::shared_ptr<mf::ClientBuffers> create_buffer_map(std::shared_ptr<mf::BufferSink> const&)
{
return nullptr;
}
private:
std::atomic<bool>& framedropping_enabled;
};
struct ServerConfig : mtf::TestingServerConfiguration
{
std::shared_ptr<ms::BufferStreamFactory> the_buffer_stream_factory() override
{
if (!stub_buffer_stream_factory)
{
stub_buffer_stream_factory =
std::make_shared<StubBufferStreamFactory>(framedropping_enabled);
}
return stub_buffer_stream_factory;
}
std::atomic<bool> framedropping_enabled{false};
std::shared_ptr<StubBufferStreamFactory> stub_buffer_stream_factory;
};
struct SwapInterval : mtf::BasicClientServerFixture<ServerConfig>
{
void SetUp()
{
mtf::BasicClientServerFixture<ServerConfig>::SetUp();
surface = mtf::make_any_surface(connection);
}
void TearDown()
{
mir_surface_release_sync(surface);
mtf::BasicClientServerFixture<ServerConfig>::TearDown();
}
bool framedropping_enabled()
{
return server_configuration.framedropping_enabled;
}
MirSurface* surface;
};
}
TEST_F(SwapInterval, defaults_to_one)
{
EXPECT_EQ(1, mir_surface_get_swapinterval(surface));
EXPECT_FALSE(framedropping_enabled());
}
TEST_F(SwapInterval, change_to_zero_enables_framedropping)
{
mir_wait_for(mir_surface_set_swapinterval(surface, 0));
EXPECT_EQ(0, mir_surface_get_swapinterval(surface));
EXPECT_TRUE(framedropping_enabled());
}
TEST_F(SwapInterval, change_to_one_disables_framedropping)
{
mir_wait_for(mir_surface_set_swapinterval(surface, 0));
mir_wait_for(mir_surface_set_swapinterval(surface, 1));
EXPECT_EQ(1, mir_surface_get_swapinterval(surface));
EXPECT_FALSE(framedropping_enabled());
}
TEST_F(SwapInterval, is_not_changed_if_requested_value_is_unsupported)
{
auto const original_swapinterval = mir_surface_get_swapinterval(surface);
auto const original_framedropping = framedropping_enabled();
int const unsupported_swap_interval_value{2};
EXPECT_EQ(NULL, mir_surface_set_swapinterval(surface, unsupported_swap_interval_value));
EXPECT_EQ(original_swapinterval, mir_surface_get_swapinterval(surface));
EXPECT_EQ(original_framedropping, framedropping_enabled());
}
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