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* Copyright © 2012 Canonical Ltd.
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 3,
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* as published by the Free Software Foundation.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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* Alan Griffiths <alan@octopull.co.uk>
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* Thomas Voss <thomas.voss@canonical.com>
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#include "surface_state.h"
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#include "mir/compositor/buffer_stream.h"
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#include "mir/input/input_channel.h"
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#include "mir/graphics/buffer.h"
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#include "mir/scene/scene_report.h"
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#include <boost/throw_exception.hpp>
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namespace mc = mir::compositor;
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namespace ms = mir::scene;
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namespace mg = mir::graphics;
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namespace mi = mir::input;
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namespace geom = mir::geometry;
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std::shared_ptr<SurfaceState> const& state,
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std::shared_ptr<mc::BufferStream> const& buffer_stream,
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std::shared_ptr<input::InputChannel> const& input_channel,
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std::shared_ptr<SceneReport> const& report) :
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surface_buffer_stream(buffer_stream),
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server_input_channel(input_channel),
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surface_in_startup(true)
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report->surface_created(this);
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void ms::Surface::force_requests_to_complete()
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surface_buffer_stream->force_requests_to_complete();
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ms::Surface::~Surface()
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report->surface_deleted(this);
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std::shared_ptr<mc::BufferStream> ms::Surface::buffer_stream() const
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return surface_buffer_stream;
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std::shared_ptr<mc::CompositingCriteria> ms::Surface::compositing_criteria()
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std::string const& ms::Surface::name() const
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return surface_state->name();
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void ms::Surface::move_to(geometry::Point const& top_left)
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surface_state->move_to(top_left);
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void ms::Surface::set_rotation(float degrees, glm::vec3 const& axis)
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surface_state->apply_rotation(degrees, axis);
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void ms::Surface::set_alpha(float alpha_v)
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surface_state->apply_alpha(alpha_v);
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void ms::Surface::set_hidden(bool hide)
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surface_state->set_hidden(hide);
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geom::Point ms::Surface::top_left() const
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return surface_state->position();
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mir::geometry::Size ms::Surface::size() const
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return surface_state->size();
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geom::PixelFormat ms::Surface::pixel_format() const
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return surface_buffer_stream->get_stream_pixel_format();
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std::shared_ptr<mg::Buffer> ms::Surface::advance_client_buffer()
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if (surface_in_startup)
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surface_in_startup = false;
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// TODO There is something crazy about assuming that giving out any buffer
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// TODO after the first implies that previous buffers have been rendered.
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return surface_buffer_stream->secure_client_buffer();
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void ms::Surface::allow_framedropping(bool allow)
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surface_buffer_stream->allow_framedropping(allow);
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std::shared_ptr<mg::Buffer> ms::Surface::snapshot_buffer() const
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return surface_buffer_stream->lock_snapshot_buffer();
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//TODO: this is just used in example code, could be private
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void ms::Surface::flag_for_render()
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surface_state->frame_posted();
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bool ms::Surface::supports_input() const
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if (server_input_channel)
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int ms::Surface::client_input_fd() const
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if (!supports_input())
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BOOST_THROW_EXCEPTION(std::logic_error("Surface does not support input"));
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return server_input_channel->client_fd();
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std::shared_ptr<mi::InputChannel> ms::Surface::input_channel() const
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return server_input_channel;
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std::shared_ptr<mi::Surface> ms::Surface::input_surface() const
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return surface_state;
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void ms::Surface::set_input_region(std::vector<geom::Rectangle> const& input_rectangles)
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surface_state->set_input_region(input_rectangles);
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void ms::Surface::resize(geom::Size const& size)
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if (size.width <= geom::Width{0} || size.height <= geom::Height{0})
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BOOST_THROW_EXCEPTION(std::logic_error("Impossible resize requested"));
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* Other combinations may still be invalid (like dimensions too big or
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* insufficient resources), but those are runtime and platform-specific, so
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* not predictable here. Such critical exceptions would arise from
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* the platform buffer allocator as a runtime_error via:
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surface_buffer_stream->resize(size);
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// Now the buffer stream has successfully resized, update the state second;
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surface_state->resize(size);
added
removed
src/server/scene/surface.cpp
