ce8c4240f7
A Surface class is split out which holds a wl_surface and supports attaching a buffer, setting the damage and emitting a signal when the frame callback got called. It doesn't come with a unit test yet as it first needs the ShmPool and Buffer properly split out to easily set it up.
125 lines
2.8 KiB
C++
125 lines
2.8 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2014 Martin Gräßlin <mgraesslin@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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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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*********************************************************************/
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#include "surface.h"
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#include <QRegion>
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#include <QVector>
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namespace KWin
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{
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namespace Wayland
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{
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Surface::Surface(QObject *parent)
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: QObject(parent)
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, m_surface(nullptr)
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, m_frameCallbackInstalled(false)
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{
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}
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Surface::~Surface()
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{
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release();
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}
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void Surface::release()
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{
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if (!m_surface) {
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return;
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}
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wl_surface_destroy(m_surface);
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m_surface = nullptr;
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}
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void Surface::destroy()
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{
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if (!m_surface) {
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return;
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}
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free(m_surface);
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m_surface = nullptr;
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}
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void Surface::setup(wl_surface *surface)
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{
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Q_ASSERT(surface);
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Q_ASSERT(!m_surface);
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m_surface = surface;
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}
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void Surface::frameCallback(void *data, wl_callback *callback, uint32_t time)
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{
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Q_UNUSED(time)
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Surface *s = reinterpret_cast<Surface*>(data);
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if (callback) {
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wl_callback_destroy(callback);
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}
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s->handleFrameCallback();
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}
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void Surface::handleFrameCallback()
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{
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m_frameCallbackInstalled = false;
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frameRendered();
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}
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const struct wl_callback_listener Surface::s_listener = {
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Surface::frameCallback
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};
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void Surface::setupFrameCallback()
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{
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Q_ASSERT(isValid());
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Q_ASSERT(!m_frameCallbackInstalled);
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wl_callback *callback = wl_surface_frame(m_surface);
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wl_callback_add_listener(callback, &s_listener, this);
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m_frameCallbackInstalled = true;
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}
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void Surface::commit(Surface::CommitFlag flag)
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{
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Q_ASSERT(isValid());
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if (flag == CommitFlag::FrameCallback) {
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setupFrameCallback();
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}
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wl_surface_commit(m_surface);
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}
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void Surface::damage(const QRegion ®ion)
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{
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for (const QRect &r : region.rects()) {
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damage(r);
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}
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}
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void Surface::damage(const QRect &rect)
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{
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Q_ASSERT(isValid());
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wl_surface_damage(m_surface, rect.x(), rect.y(), rect.width(), rect.height());
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}
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void Surface::attachBuffer(wl_buffer *buffer, const QPoint &offset)
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{
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Q_ASSERT(isValid());
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wl_surface_attach(m_surface, buffer, offset.x(), offset.y());
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}
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}
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}
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