bfb60e3610
The main motivation behind this change is to unify render target representation across opengl and software renderers and avoid accessing the render backend directory in order to get the render target.
67 lines
1.5 KiB
C++
67 lines
1.5 KiB
C++
/*
|
|
SPDX-FileCopyrightText: 2021 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
|
|
|
|
SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "kwin_export.h"
|
|
|
|
#include <QObject>
|
|
#include <QRegion>
|
|
|
|
namespace KWin
|
|
{
|
|
|
|
class RenderLayer;
|
|
class RenderTarget;
|
|
class SurfaceItem;
|
|
|
|
/**
|
|
* The RenderLayerDelegate class represents a render layer's contents.
|
|
*/
|
|
class KWIN_EXPORT RenderLayerDelegate : public QObject
|
|
{
|
|
Q_OBJECT
|
|
|
|
public:
|
|
explicit RenderLayerDelegate(QObject *parent = nullptr);
|
|
|
|
RenderLayer *layer() const;
|
|
void setLayer(RenderLayer *layer);
|
|
|
|
/**
|
|
* Returns the repaints schduled for the next frame.
|
|
*/
|
|
virtual QRegion repaints() const;
|
|
|
|
/**
|
|
* This function is called by the compositor before starting compositing. Reimplement
|
|
* this function to do frame initialization.
|
|
*/
|
|
virtual void prePaint();
|
|
|
|
/**
|
|
* This function is called by the compositor after finishing compositing. Reimplement
|
|
* this function to do post frame cleanup.
|
|
*/
|
|
virtual void postPaint();
|
|
|
|
/**
|
|
* Returns the direct scanout candidate hint. It can be used to avoid compositing the
|
|
* render layer.
|
|
*/
|
|
virtual SurfaceItem *scanoutCandidate() const;
|
|
|
|
/**
|
|
* This function is called when the compositor wants the render layer delegate
|
|
* to repaint its contents.
|
|
*/
|
|
virtual void paint(RenderTarget *renderTarget, const QRegion ®ion) = 0;
|
|
|
|
private:
|
|
RenderLayer *m_layer = nullptr;
|
|
};
|
|
|
|
} // namespace KWin
|