kwin/wayland_client/surface.cpp

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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2014 Martin Gräßlin <mgraesslin@kde.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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/>.
*********************************************************************/
#include "surface.h"
#include <QRegion>
#include <QVector>
namespace KWin
{
namespace Wayland
{
QList<Surface*> Surface::s_surfaces = QList<Surface*>();
Surface::Surface(QObject *parent)
: QObject(parent)
, m_surface(nullptr)
, m_frameCallbackInstalled(false)
{
s_surfaces << this;
}
Surface::~Surface()
{
s_surfaces.removeAll(this);
release();
}
void Surface::release()
{
if (!m_surface) {
return;
}
wl_surface_destroy(m_surface);
m_surface = nullptr;
}
void Surface::destroy()
{
if (!m_surface) {
return;
}
free(m_surface);
m_surface = nullptr;
}
void Surface::setup(wl_surface *surface)
{
Q_ASSERT(surface);
Q_ASSERT(!m_surface);
m_surface = surface;
}
void Surface::frameCallback(void *data, wl_callback *callback, uint32_t time)
{
Q_UNUSED(time)
Surface *s = reinterpret_cast<Surface*>(data);
if (callback) {
wl_callback_destroy(callback);
}
s->handleFrameCallback();
}
void Surface::handleFrameCallback()
{
m_frameCallbackInstalled = false;
frameRendered();
}
const struct wl_callback_listener Surface::s_listener = {
Surface::frameCallback
};
void Surface::setupFrameCallback()
{
Q_ASSERT(isValid());
Q_ASSERT(!m_frameCallbackInstalled);
wl_callback *callback = wl_surface_frame(m_surface);
wl_callback_add_listener(callback, &s_listener, this);
m_frameCallbackInstalled = true;
}
void Surface::commit(Surface::CommitFlag flag)
{
Q_ASSERT(isValid());
if (flag == CommitFlag::FrameCallback) {
setupFrameCallback();
}
wl_surface_commit(m_surface);
}
void Surface::damage(const QRegion &region)
{
for (const QRect &r : region.rects()) {
damage(r);
}
}
void Surface::damage(const QRect &rect)
{
Q_ASSERT(isValid());
wl_surface_damage(m_surface, rect.x(), rect.y(), rect.width(), rect.height());
}
void Surface::attachBuffer(wl_buffer *buffer, const QPoint &offset)
{
Q_ASSERT(isValid());
wl_surface_attach(m_surface, buffer, offset.x(), offset.y());
}
void Surface::setSize(const QSize &size)
{
if (m_size == size) {
return;
}
m_size = size;
emit sizeChanged(m_size);
}
Surface *Surface::get(wl_surface *native)
{
auto it = std::find_if(s_surfaces.constBegin(), s_surfaces.constEnd(),
[native](Surface *s) {
return s->m_surface == native;
}
);
if (it != s_surfaces.constEnd()) {
return *(it);
}
return nullptr;
}
const QList< Surface* > &Surface::all()
{
return s_surfaces;
}
}
}