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kwin/shadow.cpp

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Initial implementation of new Shadows in KWin For a complete documentation of new functionality refer to: http://community.kde.org/KWin/Shadow The current implementation includes a new Shadow class and Toplevel holds a pointer to an instance of this class. The Shadow class reads the data from the X11 Property. There is one extended class located in SceneOpenGL to render the shadow. Compositor is adjusted to include the shadow region into the painting passes. Implementation for XRender still missing and Shadow needs to respond to size changes of the Toplevel to update cached shadow region and WindowQuads.
2011-03-27 10:33:07 +00:00
/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2011 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 "shadow.h"
// kwin
#include "atoms.h"
Move ownership on Shadow from Toplevel to Scene::Window The Shadow is clearly an aspect of the compositor. Therefore the Shadow has to be owned and controlled by the Scene::Window. Nevertheless Toplevel needs to know about the Shadow cause of reading the property.
2011-04-03 09:31:33 +00:00
#include "effects.h"
Initial implementation of new Shadows in KWin For a complete documentation of new functionality refer to: http://community.kde.org/KWin/Shadow The current implementation includes a new Shadow class and Toplevel holds a pointer to an instance of this class. The Shadow class reads the data from the X11 Property. There is one extended class located in SceneOpenGL to render the shadow. Compositor is adjusted to include the shadow region into the painting passes. Implementation for XRender still missing and Shadow needs to respond to size changes of the Toplevel to update cached shadow region and WindowQuads.
2011-03-27 10:33:07 +00:00
#include "toplevel.h"
#ifdef KWIN_HAVE_OPENGL_COMPOSITING
#include "scene_opengl.h"
#endif
kwin: Implement shadows in XRender compositor There are still some glitches to be fixed, but it works well for most use-cases.
2011-04-28 15:22:17 +00:00
#ifdef KWIN_HAVE_XRENDER_COMPOSITING
#include "scene_xrender.h"
#endif
Initial implementation of new Shadows in KWin For a complete documentation of new functionality refer to: http://community.kde.org/KWin/Shadow The current implementation includes a new Shadow class and Toplevel holds a pointer to an instance of this class. The Shadow class reads the data from the X11 Property. There is one extended class located in SceneOpenGL to render the shadow. Compositor is adjusted to include the shadow region into the painting passes. Implementation for XRender still missing and Shadow needs to respond to size changes of the Toplevel to update cached shadow region and WindowQuads.
2011-03-27 10:33:07 +00:00
namespace KWin
{
Shadow::Shadow(Toplevel *toplevel)
Move ownership on Shadow from Toplevel to Scene::Window The Shadow is clearly an aspect of the compositor. Therefore the Shadow has to be owned and controlled by the Scene::Window. Nevertheless Toplevel needs to know about the Shadow cause of reading the property.
2011-04-03 09:31:33 +00:00
: m_topLevel(toplevel)
Update cached Shadow information on size changes In order to notice when the geometry changes a new signal is added to toplevel and both Unmanaged and Client connect all their signals which are emitted whenever the geometry changes in some way to this new signal. Shadow connects to the signal and updates the quads and region whenever the size changes.
2011-04-03 10:43:57 +00:00
, m_cachedSize(toplevel->geometry().size())
Initial implementation of new Shadows in KWin For a complete documentation of new functionality refer to: http://community.kde.org/KWin/Shadow The current implementation includes a new Shadow class and Toplevel holds a pointer to an instance of this class. The Shadow class reads the data from the X11 Property. There is one extended class located in SceneOpenGL to render the shadow. Compositor is adjusted to include the shadow region into the painting passes. Implementation for XRender still missing and Shadow needs to respond to size changes of the Toplevel to update cached shadow region and WindowQuads.
2011-03-27 10:33:07 +00:00
{
Update cached Shadow information on size changes In order to notice when the geometry changes a new signal is added to toplevel and both Unmanaged and Client connect all their signals which are emitted whenever the geometry changes in some way to this new signal. Shadow connects to the signal and updates the quads and region whenever the size changes.
2011-04-03 10:43:57 +00:00
connect(m_topLevel, SIGNAL(geometryChanged()), SLOT(geometryChanged()));
Initial implementation of new Shadows in KWin For a complete documentation of new functionality refer to: http://community.kde.org/KWin/Shadow The current implementation includes a new Shadow class and Toplevel holds a pointer to an instance of this class. The Shadow class reads the data from the X11 Property. There is one extended class located in SceneOpenGL to render the shadow. Compositor is adjusted to include the shadow region into the painting passes. Implementation for XRender still missing and Shadow needs to respond to size changes of the Toplevel to update cached shadow region and WindowQuads.
2011-03-27 10:33:07 +00:00
}
Shadow::~Shadow()
{
}
Shadow *Shadow::createShadow(Toplevel *toplevel)
{
if (!effects) {
return NULL;
}
QVector<long> data = Shadow::readX11ShadowProperty(toplevel->window());
if (!data.isEmpty()) {
Shadow *shadow = NULL;
if (effects->compositingType() == OpenGLCompositing) {
#ifdef KWIN_HAVE_OPENGL_COMPOSITING
shadow = new SceneOpenGLShadow(toplevel);
kwin: Implement shadows in XRender compositor There are still some glitches to be fixed, but it works well for most use-cases.
2011-04-28 15:22:17 +00:00
#endif
} else if (effects->compositingType() == XRenderCompositing) {
#ifdef KWIN_HAVE_XRENDER_COMPOSITING
shadow = new SceneXRenderShadow(toplevel);
Initial implementation of new Shadows in KWin For a complete documentation of new functionality refer to: http://community.kde.org/KWin/Shadow The current implementation includes a new Shadow class and Toplevel holds a pointer to an instance of this class. The Shadow class reads the data from the X11 Property. There is one extended class located in SceneOpenGL to render the shadow. Compositor is adjusted to include the shadow region into the painting passes. Implementation for XRender still missing and Shadow needs to respond to size changes of the Toplevel to update cached shadow region and WindowQuads.
2011-03-27 10:33:07 +00:00
#endif
}
kwin: Implement shadows in XRender compositor There are still some glitches to be fixed, but it works well for most use-cases.
2011-04-28 15:22:17 +00:00
Initial implementation of new Shadows in KWin For a complete documentation of new functionality refer to: http://community.kde.org/KWin/Shadow The current implementation includes a new Shadow class and Toplevel holds a pointer to an instance of this class. The Shadow class reads the data from the X11 Property. There is one extended class located in SceneOpenGL to render the shadow. Compositor is adjusted to include the shadow region into the painting passes. Implementation for XRender still missing and Shadow needs to respond to size changes of the Toplevel to update cached shadow region and WindowQuads.
2011-03-27 10:33:07 +00:00
if (shadow) {
Verify that Shadow pixmaps are valid At least in rekonq the shadow pixmaps are not valid causing an exception to be thrown and crashing kwin.
2011-04-02 17:01:16 +00:00
if (!shadow->init(data)) {
delete shadow;
return NULL;
}
Move ownership on Shadow from Toplevel to Scene::Window The Shadow is clearly an aspect of the compositor. Therefore the Shadow has to be owned and controlled by the Scene::Window. Nevertheless Toplevel needs to know about the Shadow cause of reading the property.
2011-04-03 09:31:33 +00:00
if (toplevel->effectWindow() && toplevel->effectWindow()->sceneWindow()) {
toplevel->effectWindow()->sceneWindow()->updateShadow(shadow);
}
Initial implementation of new Shadows in KWin For a complete documentation of new functionality refer to: http://community.kde.org/KWin/Shadow The current implementation includes a new Shadow class and Toplevel holds a pointer to an instance of this class. The Shadow class reads the data from the X11 Property. There is one extended class located in SceneOpenGL to render the shadow. Compositor is adjusted to include the shadow region into the painting passes. Implementation for XRender still missing and Shadow needs to respond to size changes of the Toplevel to update cached shadow region and WindowQuads.
2011-03-27 10:33:07 +00:00
}
return shadow;
} else {
return NULL;
}
}
QVector< long > Shadow::readX11ShadowProperty(WId id)
{
QVector<long> ret;
Atom type;
int format, status;
unsigned long nitems = 0;
unsigned long extra = 0;
unsigned char *data = 0;
status = XGetWindowProperty(display(), id, atoms->kde_net_wm_shadow, 0, 12, false, XA_CARDINAL, &type, &format, &nitems, &extra, &data);
if (status == Success && type == XA_CARDINAL && format == 32 && nitems == 12) {
long* shadow = reinterpret_cast< long* >(data);
ret.reserve(12);
for (int i=0; i<12; ++i) {
ret << shadow[i];
}
XFree(data);
}
return ret;
}
Verify that Shadow pixmaps are valid At least in rekonq the shadow pixmaps are not valid causing an exception to be thrown and crashing kwin.
2011-04-02 17:01:16 +00:00
bool Shadow::init(const QVector< long > &data)
Initial implementation of new Shadows in KWin For a complete documentation of new functionality refer to: http://community.kde.org/KWin/Shadow The current implementation includes a new Shadow class and Toplevel holds a pointer to an instance of this class. The Shadow class reads the data from the X11 Property. There is one extended class located in SceneOpenGL to render the shadow. Compositor is adjusted to include the shadow region into the painting passes. Implementation for XRender still missing and Shadow needs to respond to size changes of the Toplevel to update cached shadow region and WindowQuads.
2011-03-27 10:33:07 +00:00
{
for (int i=0; i<ShadowElementsCount; ++i) {
Deep copy the shadow pixmaps At least with NVIDIA drivers we get bad alloc errors in glXCreatePixmap for the shared pixmaps.
2011-03-30 18:29:54 +00:00
QPixmap pix = QPixmap::fromX11Pixmap(data[i]);
Add another pixmap safety check in Shadow creation Do not only check for null pixmaps but also that the pixmap contains a 32 bit depth as we don't want shadows without alpha.
2011-05-14 19:02:11 +00:00
if (pix.isNull() || pix.depth() != 32) {
Verify that Shadow pixmaps are valid At least in rekonq the shadow pixmaps are not valid causing an exception to be thrown and crashing kwin.
2011-04-02 17:01:16 +00:00
return false;
}
Do not deep copy the shadow pixmaps The deep copy does not work with raster as it creates a non-native pixmap. In fact the deep copy is not needed any more as it was a safety check during development when apps using raster could crash kwin.
2011-05-14 19:04:28 +00:00
m_shadowElements[i] = pix;
Initial implementation of new Shadows in KWin For a complete documentation of new functionality refer to: http://community.kde.org/KWin/Shadow The current implementation includes a new Shadow class and Toplevel holds a pointer to an instance of this class. The Shadow class reads the data from the X11 Property. There is one extended class located in SceneOpenGL to render the shadow. Compositor is adjusted to include the shadow region into the painting passes. Implementation for XRender still missing and Shadow needs to respond to size changes of the Toplevel to update cached shadow region and WindowQuads.
2011-03-27 10:33:07 +00:00
}
m_topOffset = data[ShadowElementsCount];
m_rightOffset = data[ShadowElementsCount+1];
m_bottomOffset = data[ShadowElementsCount+2];
m_leftOffset = data[ShadowElementsCount+3];
Update cached Shadow information on size changes In order to notice when the geometry changes a new signal is added to toplevel and both Unmanaged and Client connect all their signals which are emitted whenever the geometry changes in some way to this new signal. Shadow connects to the signal and updates the quads and region whenever the size changes.
2011-04-03 10:43:57 +00:00
updateShadowRegion();
buildQuads();
return true;
}
void Shadow::updateShadowRegion()
{
Initial implementation of new Shadows in KWin For a complete documentation of new functionality refer to: http://community.kde.org/KWin/Shadow The current implementation includes a new Shadow class and Toplevel holds a pointer to an instance of this class. The Shadow class reads the data from the X11 Property. There is one extended class located in SceneOpenGL to render the shadow. Compositor is adjusted to include the shadow region into the painting passes. Implementation for XRender still missing and Shadow needs to respond to size changes of the Toplevel to update cached shadow region and WindowQuads.
2011-03-27 10:33:07 +00:00
const QRect topRect(0, - m_topOffset, m_topLevel->width(), m_topOffset);
const QRect rightRect(m_topLevel->width(), - m_topOffset, m_rightOffset, m_topLevel->height() + m_topOffset + m_bottomOffset);
const QRect bottomRect(0, m_topLevel->height(), m_topLevel->width(), m_bottomOffset);
const QRect leftRect(- m_leftOffset, - m_topOffset, m_leftOffset, m_topLevel->height() + m_topOffset + m_bottomOffset);
m_shadowRegion = QRegion(topRect).united(rightRect).united(bottomRect).united(leftRect);
}
void Shadow::buildQuads()
{
// prepare window quads
m_shadowQuads.clear();
const QRect topRect(QPoint(0, 0), m_shadowElements[ShadowElementTop].size());
const QRect topRightRect(QPoint(0, 0), m_shadowElements[ShadowElementTopRight].size());
const QRect rightRect(QPoint(0, 0), m_shadowElements[ShadowElementRight].size());
const QRect bottomRightRect(QPoint(0, 0), m_shadowElements[ShadowElementBottomRight].size());
const QRect bottomRect(QPoint(0, 0), m_shadowElements[ShadowElementBottom].size());
const QRect bottomLeftRect(QPoint(0, 0), m_shadowElements[ShadowElementBottomLeft].size());
const QRect leftRect(QPoint(0, 0), m_shadowElements[ShadowElementLeft].size());
const QRect topLeftRect(QPoint(0, 0), m_shadowElements[ShadowElementTopLeft].size());
Don't render a Shadow if the Shadow overlaps the window
2011-04-03 11:05:35 +00:00
if ((leftRect.width() - m_leftOffset > m_topLevel->width()) ||
(rightRect.width() - m_rightOffset > m_topLevel->width()) ||
(topRect.height() - m_topOffset > m_topLevel->height()) ||
(bottomRect.height() - m_bottomOffset > m_topLevel->height())) {
// if our shadow is bigger than the window, we don't render the shadow
m_shadowRegion = QRegion();
return;
}
Initial implementation of new Shadows in KWin For a complete documentation of new functionality refer to: http://community.kde.org/KWin/Shadow The current implementation includes a new Shadow class and Toplevel holds a pointer to an instance of this class. The Shadow class reads the data from the X11 Property. There is one extended class located in SceneOpenGL to render the shadow. Compositor is adjusted to include the shadow region into the painting passes. Implementation for XRender still missing and Shadow needs to respond to size changes of the Toplevel to update cached shadow region and WindowQuads.
2011-03-27 10:33:07 +00:00
WindowQuad topLeftQuad(WindowQuadShadowTopLeft);
topLeftQuad[ 0 ] = WindowVertex(-m_leftOffset, -m_topOffset, 0.0, 0.0);
topLeftQuad[ 1 ] = WindowVertex(-m_leftOffset + topLeftRect.width(), -m_topOffset, 1.0, 0.0);
topLeftQuad[ 2 ] = WindowVertex(-m_leftOffset + topLeftRect.width(), -m_topOffset + topLeftRect.height(), 1.0, 1.0);
topLeftQuad[ 3 ] = WindowVertex(-m_leftOffset, -m_topOffset + topLeftRect.height(), 0.0, 1.0);
m_shadowQuads.append(topLeftQuad);
WindowQuad topQuad(WindowQuadShadowTop);
topQuad[ 0 ] = WindowVertex(-m_leftOffset + topLeftRect.width(), -m_topOffset, 0.0, 0.0);
topQuad[ 1 ] = WindowVertex(m_topLevel->width() + m_rightOffset - topRightRect.width(), -m_topOffset, 1.0, 0.0);
topQuad[ 2 ] = WindowVertex(m_topLevel->width() + m_rightOffset - topRightRect.width(), -m_topOffset + topRect.height(), 1.0, 1.0);
topQuad[ 3 ] = WindowVertex(-m_leftOffset + topLeftRect.width(), -m_topOffset + topRect.height(), 0.0, 1.0);
m_shadowQuads.append(topQuad);
WindowQuad topRightQuad(WindowQuadShadowTopRight);
topRightQuad[ 0 ] = WindowVertex(m_topLevel->width() + m_rightOffset - topRightRect.width(), -m_topOffset, 0.0, 0.0);
topRightQuad[ 1 ] = WindowVertex(m_topLevel->width() + m_rightOffset, -m_topOffset, 1.0, 0.0);
topRightQuad[ 2 ] = WindowVertex(m_topLevel->width() + m_rightOffset, -m_topOffset + topRightRect.height(), 1.0, 1.0);
topRightQuad[ 3 ] = WindowVertex(m_topLevel->width() + m_rightOffset - topRightRect.width(), -m_topOffset + topRightRect.height(), 0.0, 1.0);
m_shadowQuads.append(topRightQuad);
WindowQuad rightQuad(WindowQuadShadowRight);
rightQuad[ 0 ] = WindowVertex(m_topLevel->width() + m_rightOffset - rightRect.width(), -m_topOffset + topRightRect.height(), 0.0, 0.0);
rightQuad[ 1 ] = WindowVertex(m_topLevel->width() + m_rightOffset, -m_topOffset + topRightRect.height(), 1.0, 0.0);
rightQuad[ 2 ] = WindowVertex(m_topLevel->width() + m_rightOffset, m_topLevel->height() + m_bottomOffset - bottomRightRect.height(), 1.0, 1.0);
rightQuad[ 3 ] = WindowVertex(m_topLevel->width() + m_rightOffset - rightRect.width(), m_topLevel->height() + m_bottomOffset - bottomRightRect.height(), 0.0, 1.0);
m_shadowQuads.append(rightQuad);
WindowQuad bottomRightQuad(WindowQuadShadowBottomRight);
bottomRightQuad[ 0 ] = WindowVertex(m_topLevel->width() + m_rightOffset - bottomRightRect.width(), m_topLevel->height() + m_bottomOffset - bottomRightRect.height(), 0.0, 0.0);
bottomRightQuad[ 1 ] = WindowVertex(m_topLevel->width() + m_rightOffset, m_topLevel->height() + m_bottomOffset - bottomRightRect.height(), 1.0, 0.0);
bottomRightQuad[ 2 ] = WindowVertex(m_topLevel->width() + m_rightOffset, m_topLevel->height() + m_bottomOffset, 1.0, 1.0);
bottomRightQuad[ 3 ] = WindowVertex(m_topLevel->width() + m_rightOffset - bottomRightRect.width(), m_topLevel->height() + m_bottomOffset, 0.0, 1.0);
m_shadowQuads.append(bottomRightQuad);
WindowQuad bottomQuad(WindowQuadShadowBottom);
bottomQuad[ 0 ] = WindowVertex(-m_leftOffset + bottomLeftRect.width(), m_topLevel->height() + m_bottomOffset - bottomRect.height(), 0.0, 0.0);
bottomQuad[ 1 ] = WindowVertex(m_topLevel->width() + m_rightOffset - bottomRightRect.width(), m_topLevel->height() + m_bottomOffset - bottomRect.height(), 1.0, 0.0);
bottomQuad[ 2 ] = WindowVertex(m_topLevel->width() + m_rightOffset - bottomRightRect.width(), m_topLevel->height() + m_bottomOffset, 1.0, 1.0);
bottomQuad[ 3 ] = WindowVertex(-m_leftOffset + bottomLeftRect.width(), m_topLevel->height() + m_bottomOffset, 0.0, 1.0);
m_shadowQuads.append(bottomQuad);
WindowQuad bottomLeftQuad(WindowQuadShadowBottomLeft);
bottomLeftQuad[ 0 ] = WindowVertex(-m_leftOffset, m_topLevel->height() + m_bottomOffset - bottomLeftRect.height(), 0.0, 0.0);
bottomLeftQuad[ 1 ] = WindowVertex(-m_leftOffset + bottomLeftRect.width(), m_topLevel->height() + m_bottomOffset - bottomLeftRect.height(), 1.0, 0.0);
bottomLeftQuad[ 2 ] = WindowVertex(-m_leftOffset + bottomLeftRect.width(), m_topLevel->height() + m_bottomOffset, 1.0, 1.0);
bottomLeftQuad[ 3 ] = WindowVertex(-m_leftOffset, m_topLevel->height() + m_bottomOffset, 0.0, 1.0);
m_shadowQuads.append(bottomLeftQuad);
WindowQuad leftQuad(WindowQuadShadowLeft);
leftQuad[ 0 ] = WindowVertex(-m_leftOffset, -m_topOffset + topLeftRect.height(), 0.0, 0.0);
leftQuad[ 1 ] = WindowVertex(-m_leftOffset + leftRect.width(), -m_topOffset + topLeftRect.height(), 1.0, 0.0);
leftQuad[ 2 ] = WindowVertex(-m_leftOffset + leftRect.width(), m_topLevel->height() + m_bottomOffset - bottomLeftRect.height(), 1.0, 1.0);
leftQuad[ 3 ] = WindowVertex(-m_leftOffset, m_topLevel->height() + m_bottomOffset - bottomLeftRect.height(), 0.0, 1.0);
m_shadowQuads.append(leftQuad);
}
bool Shadow::updateShadow()
{
QVector<long> data = Shadow::readX11ShadowProperty(m_topLevel->window());
if (data.isEmpty()) {
return false;
}
init(data);
return true;
}
Fix repainting of shadow after window closes Unmanaged needs to repaint the complete geometry including shadow when it ends compositing. Therefore we need to track the shadow passing to deleted correctly. Disadvantage: when turning off compositing the shadow is kept. Need to solve in a better way!
2011-04-01 19:49:44 +00:00
void Shadow::setToplevel(Toplevel *topLevel)
{
m_topLevel = topLevel;
Update cached Shadow information on size changes In order to notice when the geometry changes a new signal is added to toplevel and both Unmanaged and Client connect all their signals which are emitted whenever the geometry changes in some way to this new signal. Shadow connects to the signal and updates the quads and region whenever the size changes.
2011-04-03 10:43:57 +00:00
connect(m_topLevel, SIGNAL(geometryChanged()), SLOT(geometryChanged()));
}
void Shadow::geometryChanged()
{
if (m_cachedSize == m_topLevel->geometry().size()) {
return;
}
m_cachedSize = m_topLevel->geometry().size();
updateShadowRegion();
buildQuads();
Fix repainting of shadow after window closes Unmanaged needs to repaint the complete geometry including shadow when it ends compositing. Therefore we need to track the shadow passing to deleted correctly. Disadvantage: when turning off compositing the shadow is kept. Need to solve in a better way!
2011-04-01 19:49:44 +00:00
}
Initial implementation of new Shadows in KWin For a complete documentation of new functionality refer to: http://community.kde.org/KWin/Shadow The current implementation includes a new Shadow class and Toplevel holds a pointer to an instance of this class. The Shadow class reads the data from the X11 Property. There is one extended class located in SceneOpenGL to render the shadow. Compositor is adjusted to include the shadow region into the painting passes. Implementation for XRender still missing and Shadow needs to respond to size changes of the Toplevel to update cached shadow region and WindowQuads.
2011-03-27 10:33:07 +00:00
} // namespace
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