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kwin/src/surfaceitem_internal.cpp

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scene: Introduce window items Currently, dealing with sub-surfaces is very difficult due to the scene design being heavily influenced by X11 requirements. The goal of this change is to re-work scene abstractions to make improving the wayland support easier. The Item class is based on the QQuickItem class. My hope is that one day we will be able to transition to QtQuick for painting scene, but in meanwhile it makes more sense to have a minimalistic internal item class. The WindowItem class represents a window. The SurfaceItem class represents the contents of either an X11, or a Wayland, or an internal surface. The DecorationItem and the ShadowItem class represent the server-side deco and drop-shadow, respectively. At the moment, the SurfaceItem is bound to the scene window, but the long term plan is to break that connection so we could re-use the SurfaceItem for things such as software cursors and drag-and-drop additional icons. One of the responsibilities of the Item is to schedule repaints as needed. Ideally, there shouldn't be any addRepaint() calls in the core code. The Item class schedules repaints on geometry updates. In the future, it also has to request an update if its opacity or visibility changes.
2021-02-04 09:07:20 +00:00
/*
SPDX-FileCopyrightText: 2021 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "surfaceitem_internal.h"
Decouple window pixmaps from scene windows One of the scene redesign goals is to make wayland surface items re-usable. So we have the same rendering path for drag-and-drop icons, software cursors, and window surfaces. The biggest issue at the moment is that window pixmaps are tightly coupled with scene windows. This change de-couples window pixmaps from scene windows. In order to achieve that, some architecture changes were made. The WindowPixmap class was replaced with the SurfacePixmap class. A surface pixmap is created by a surface item. Under the hood, a SurfacePixmap will create a PlatformSurfaceTexture object, which contains all the information necessary for the renderer. The SceneOpenGLTexture class was removed. However, the GLX and the EGL on X11 backends still mess with GLTexture's internals.
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#include "composite.h"
#include "scene.h"
scene: Introduce window items Currently, dealing with sub-surfaces is very difficult due to the scene design being heavily influenced by X11 requirements. The goal of this change is to re-work scene abstractions to make improving the wayland support easier. The Item class is based on the QQuickItem class. My hope is that one day we will be able to transition to QtQuick for painting scene, but in meanwhile it makes more sense to have a minimalistic internal item class. The WindowItem class represents a window. The SurfaceItem class represents the contents of either an X11, or a Wayland, or an internal surface. The DecorationItem and the ShadowItem class represent the server-side deco and drop-shadow, respectively. At the moment, the SurfaceItem is bound to the scene window, but the long term plan is to break that connection so we could re-use the SurfaceItem for things such as software cursors and drag-and-drop additional icons. One of the responsibilities of the Item is to schedule repaints as needed. Ideally, there shouldn't be any addRepaint() calls in the core code. The Item class schedules repaints on geometry updates. In the future, it also has to request an update if its opacity or visibility changes.
2021-02-04 09:07:20 +00:00
namespace KWin
{
SurfaceItemInternal::SurfaceItemInternal(Scene::Window *window, Item *parent)
: SurfaceItem(window, parent)
{
Toplevel *toplevel = window->window();
connect(toplevel, &Toplevel::bufferGeometryChanged,
this, &SurfaceItemInternal::handleBufferGeometryChanged);
setSize(toplevel->bufferGeometry().size());
}
QPointF SurfaceItemInternal::mapToBuffer(const QPointF &point) const
{
return point * window()->window()->bufferScale();
}
QRegion SurfaceItemInternal::shape() const
{
Remove unused geometry setters in Item Originally, only x, y, width, and height property setters were used. A bit later "position" and "size" helper setters were added to simplify code in SurfaceItem sub-classes. It seems like setX(), setY(), setWidth(), and setHeight() are unused now, so remove them.
2021-07-05 17:40:47 +00:00
return QRegion(rect());
scene: Introduce window items Currently, dealing with sub-surfaces is very difficult due to the scene design being heavily influenced by X11 requirements. The goal of this change is to re-work scene abstractions to make improving the wayland support easier. The Item class is based on the QQuickItem class. My hope is that one day we will be able to transition to QtQuick for painting scene, but in meanwhile it makes more sense to have a minimalistic internal item class. The WindowItem class represents a window. The SurfaceItem class represents the contents of either an X11, or a Wayland, or an internal surface. The DecorationItem and the ShadowItem class represent the server-side deco and drop-shadow, respectively. At the moment, the SurfaceItem is bound to the scene window, but the long term plan is to break that connection so we could re-use the SurfaceItem for things such as software cursors and drag-and-drop additional icons. One of the responsibilities of the Item is to schedule repaints as needed. Ideally, there shouldn't be any addRepaint() calls in the core code. The Item class schedules repaints on geometry updates. In the future, it also has to request an update if its opacity or visibility changes.
2021-02-04 09:07:20 +00:00
}
Decouple window pixmaps from scene windows One of the scene redesign goals is to make wayland surface items re-usable. So we have the same rendering path for drag-and-drop icons, software cursors, and window surfaces. The biggest issue at the moment is that window pixmaps are tightly coupled with scene windows. This change de-couples window pixmaps from scene windows. In order to achieve that, some architecture changes were made. The WindowPixmap class was replaced with the SurfacePixmap class. A surface pixmap is created by a surface item. Under the hood, a SurfacePixmap will create a PlatformSurfaceTexture object, which contains all the information necessary for the renderer. The SceneOpenGLTexture class was removed. However, the GLX and the EGL on X11 backends still mess with GLTexture's internals.
2021-04-09 07:06:04 +00:00
SurfacePixmap *SurfaceItemInternal::createPixmap()
scene: Introduce window items Currently, dealing with sub-surfaces is very difficult due to the scene design being heavily influenced by X11 requirements. The goal of this change is to re-work scene abstractions to make improving the wayland support easier. The Item class is based on the QQuickItem class. My hope is that one day we will be able to transition to QtQuick for painting scene, but in meanwhile it makes more sense to have a minimalistic internal item class. The WindowItem class represents a window. The SurfaceItem class represents the contents of either an X11, or a Wayland, or an internal surface. The DecorationItem and the ShadowItem class represent the server-side deco and drop-shadow, respectively. At the moment, the SurfaceItem is bound to the scene window, but the long term plan is to break that connection so we could re-use the SurfaceItem for things such as software cursors and drag-and-drop additional icons. One of the responsibilities of the Item is to schedule repaints as needed. Ideally, there shouldn't be any addRepaint() calls in the core code. The Item class schedules repaints on geometry updates. In the future, it also has to request an update if its opacity or visibility changes.
2021-02-04 09:07:20 +00:00
{
Decouple window pixmaps from scene windows One of the scene redesign goals is to make wayland surface items re-usable. So we have the same rendering path for drag-and-drop icons, software cursors, and window surfaces. The biggest issue at the moment is that window pixmaps are tightly coupled with scene windows. This change de-couples window pixmaps from scene windows. In order to achieve that, some architecture changes were made. The WindowPixmap class was replaced with the SurfacePixmap class. A surface pixmap is created by a surface item. Under the hood, a SurfacePixmap will create a PlatformSurfaceTexture object, which contains all the information necessary for the renderer. The SceneOpenGLTexture class was removed. However, the GLX and the EGL on X11 backends still mess with GLTexture's internals.
2021-04-09 07:06:04 +00:00
return new SurfacePixmapInternal(this);
scene: Introduce window items Currently, dealing with sub-surfaces is very difficult due to the scene design being heavily influenced by X11 requirements. The goal of this change is to re-work scene abstractions to make improving the wayland support easier. The Item class is based on the QQuickItem class. My hope is that one day we will be able to transition to QtQuick for painting scene, but in meanwhile it makes more sense to have a minimalistic internal item class. The WindowItem class represents a window. The SurfaceItem class represents the contents of either an X11, or a Wayland, or an internal surface. The DecorationItem and the ShadowItem class represent the server-side deco and drop-shadow, respectively. At the moment, the SurfaceItem is bound to the scene window, but the long term plan is to break that connection so we could re-use the SurfaceItem for things such as software cursors and drag-and-drop additional icons. One of the responsibilities of the Item is to schedule repaints as needed. Ideally, there shouldn't be any addRepaint() calls in the core code. The Item class schedules repaints on geometry updates. In the future, it also has to request an update if its opacity or visibility changes.
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}
void SurfaceItemInternal::handleBufferGeometryChanged(Toplevel *toplevel, const QRect &old)
{
if (toplevel->bufferGeometry().size() != old.size()) {
discardPixmap();
}
setSize(toplevel->bufferGeometry().size());
}
Decouple window pixmaps from scene windows One of the scene redesign goals is to make wayland surface items re-usable. So we have the same rendering path for drag-and-drop icons, software cursors, and window surfaces. The biggest issue at the moment is that window pixmaps are tightly coupled with scene windows. This change de-couples window pixmaps from scene windows. In order to achieve that, some architecture changes were made. The WindowPixmap class was replaced with the SurfacePixmap class. A surface pixmap is created by a surface item. Under the hood, a SurfacePixmap will create a PlatformSurfaceTexture object, which contains all the information necessary for the renderer. The SceneOpenGLTexture class was removed. However, the GLX and the EGL on X11 backends still mess with GLTexture's internals.
2021-04-09 07:06:04 +00:00
SurfacePixmapInternal::SurfacePixmapInternal(SurfaceItemInternal *item, QObject *parent)
: SurfacePixmap(Compositor::self()->scene()->createPlatformSurfaceTextureInternal(this), parent)
, m_item(item)
{
}
QOpenGLFramebufferObject *SurfacePixmapInternal::fbo() const
{
return m_fbo.data();
}
QImage SurfacePixmapInternal::image() const
{
return m_rasterBuffer;
}
void SurfacePixmapInternal::create()
{
update();
}
void SurfacePixmapInternal::update()
{
const Toplevel *toplevel = m_item->window()->window();
if (toplevel->internalFramebufferObject()) {
m_fbo = toplevel->internalFramebufferObject();
m_hasAlphaChannel = true;
} else if (!toplevel->internalImageObject().isNull()) {
m_rasterBuffer = toplevel->internalImageObject();
m_hasAlphaChannel = m_rasterBuffer.hasAlphaChannel();
}
}
bool SurfacePixmapInternal::isValid() const
{
return !m_fbo.isNull() || !m_rasterBuffer.isNull();
}
scene: Introduce window items Currently, dealing with sub-surfaces is very difficult due to the scene design being heavily influenced by X11 requirements. The goal of this change is to re-work scene abstractions to make improving the wayland support easier. The Item class is based on the QQuickItem class. My hope is that one day we will be able to transition to QtQuick for painting scene, but in meanwhile it makes more sense to have a minimalistic internal item class. The WindowItem class represents a window. The SurfaceItem class represents the contents of either an X11, or a Wayland, or an internal surface. The DecorationItem and the ShadowItem class represent the server-side deco and drop-shadow, respectively. At the moment, the SurfaceItem is bound to the scene window, but the long term plan is to break that connection so we could re-use the SurfaceItem for things such as software cursors and drag-and-drop additional icons. One of the responsibilities of the Item is to schedule repaints as needed. Ideally, there shouldn't be any addRepaint() calls in the core code. The Item class schedules repaints on geometry updates. In the future, it also has to request an update if its opacity or visibility changes.
2021-02-04 09:07:20 +00:00
} // namespace KWin
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