32e9de1e23
Move the buffer-swap-pending state from the compositing backends to the Compositor class. The Compositor is the only class that needs to access the state, and this way it to do it without calling through a chain of virtual functions. This commit adds two new functions to Compositor; aboutToSwapBuffers() and bufferSwapComplete(). The backends call these functions to set and reset the buffer-swap-pending state. This commit also renames a number of functions and variables to make their meaning clear. The act of promoting the contents of the back buffer to become the contents of the front buffer is referred to as posting the buffer, presenting the buffer, or swapping the buffers; rendering the buffer is what paintScreen() does.
156 lines
3.4 KiB
C++
156 lines
3.4 KiB
C++
/********************************************************************
|
|
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;
|
|
emit framePresented();
|
|
}
|
|
|
|
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 ®ion)
|
|
{
|
|
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;
|
|
}
|
|
|
|
}
|
|
}
|