/
output_manager.cpp
194 lines (166 loc) · 5.79 KB
/
output_manager.cpp
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/*
* Copyright © 2018 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: Christopher James Halse Rogers <christopher.halse.rogers@canonical.com>
*/
#include "output_manager.h"
#include "mir/frontend/display_changer.h"
#include <algorithm>
namespace mf = mir::frontend;
namespace mg = mir::graphics;
mf::Output::Output(wl_display* display, mg::DisplayConfigurationOutput const& initial_configuration) :
output{make_output(display)},
current_config{initial_configuration}
{
}
mf::Output::~Output()
{
wl_global_destroy(output);
}
void mf::Output::handle_configuration_changed(mg::DisplayConfigurationOutput const& /*config*/)
{
}
bool mf::Output::matches_client_resource(wl_client* client, struct wl_resource* resource) const
{
auto const rp = resource_map.find(client);
if (rp == resource_map.end())
return false;
for (auto const& r : rp->second)
if (r == resource)
return true;
return false;
}
void mf::Output::send_initial_config(wl_resource* client_resource, mg::DisplayConfigurationOutput const& config)
{
wl_output_send_geometry(
client_resource,
config.top_left.x.as_int(),
config.top_left.y.as_int(),
config.physical_size_mm.width.as_int(),
config.physical_size_mm.height.as_int(),
WL_OUTPUT_SUBPIXEL_UNKNOWN,
"Fake manufacturer",
"Fake model",
WL_OUTPUT_TRANSFORM_NORMAL);
for (size_t i = 0; i < config.modes.size(); ++i)
{
auto const& mode = config.modes[i];
wl_output_send_mode(
client_resource,
((i == config.preferred_mode_index ? WL_OUTPUT_MODE_PREFERRED : 0) |
(i == config.current_mode_index ? WL_OUTPUT_MODE_CURRENT : 0)),
mode.size.width.as_int(),
mode.size.height.as_int(),
mode.vrefresh_hz * 1000);
}
if (wl_resource_get_version(client_resource) >= WL_OUTPUT_DONE_SINCE_VERSION)
wl_output_send_scale(client_resource, 1);
if (wl_resource_get_version(client_resource) >= WL_OUTPUT_DONE_SINCE_VERSION)
wl_output_send_done(client_resource);
}
wl_global* mf::Output::make_output(wl_display* display)
{
return wl_global_create(
display,
&wl_output_interface,
2,
this, &on_bind);
}
void mf::Output::on_bind(wl_client* client, void* data, uint32_t version, uint32_t id)
{
auto output = reinterpret_cast<Output*>(data);
auto resource = wl_resource_create(
client, &wl_output_interface,
std::min(version, 2u), id);
if (resource == NULL)
{
wl_client_post_no_memory(client);
return;
}
output->resource_map[client].push_back(resource);
wl_resource_set_destructor(resource, &resource_destructor);
wl_resource_set_user_data(resource, &(output->resource_map));
send_initial_config(resource, output->current_config);
}
void mf::Output::resource_destructor(wl_resource* resource)
{
auto& map = *reinterpret_cast<decltype(resource_map)*>(
wl_resource_get_user_data(resource));
auto& client_resource_list = map[wl_resource_get_client(resource)];
auto erase_from = std::remove_if(
client_resource_list.begin(),
client_resource_list.end(),
[resource](auto candidate)
{ return candidate == resource; });
client_resource_list.erase(erase_from, client_resource_list.end());
}
mf::OutputManager::OutputManager(wl_display* display, mf::DisplayChanger& display_config) :
display{display}
{
// TODO: Also register display configuration listeners
display_config.base_configuration()
->for_each_output(std::bind(&OutputManager::create_output, this, std::placeholders::_1));
}
auto mf::OutputManager::output_id_for(
wl_client* client,
std::experimental::optional<struct wl_resource*> const& output) const
-> mir::optional_value<graphics::DisplayConfigurationOutputId>
{
if (output)
{
return output_id_for(client, output.value());
}
else
{
return {};
}
}
auto mf::OutputManager::output_id_for(wl_client* client, struct wl_resource* output) const
-> mir::graphics::DisplayConfigurationOutputId
{
for (auto const& dd: outputs)
if (dd.second->matches_client_resource(client, output))
return {dd.first};
return {};
}
void mf::OutputManager::create_output(mg::DisplayConfigurationOutput const& initial_config)
{
if (initial_config.used)
{
outputs.emplace(initial_config.id, std::make_unique<Output>(display, initial_config));
}
}
void mf::OutputManager::handle_configuration_change(mg::DisplayConfiguration const& config)
{
config.for_each_output([this](mg::DisplayConfigurationOutput const& output_config)
{
auto output_iter = outputs.find(output_config.id);
if (output_iter != outputs.end())
{
if (output_config.used)
{
output_iter->second->handle_configuration_changed(output_config);
}
else
{
outputs.erase(output_iter);
}
}
else if (output_config.used)
{
outputs[output_config.id] = std::make_unique<Output>(display, output_config);
}
});
}