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Drop qt framebuffer

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It works by grabbing the QDesktopWidget, which doesn't work in Qt6 since there is no QDesktopWidget.

In practice it only really works on xcb anyway, for which we have a dedicated plugin
This commit is contained in:
Nicolas Fella
2024-01-08 00:52:35 +01:00
parent caab08ba15
commit b7a2db5c71
7 changed files with 0 additions and 302 deletions
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2
framebuffers/CMakeLists.txt
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@@ -1,5 +1,3 @@
add_subdirectory (qt)
if (${XCB_DAMAGE_FOUND} AND ${XCB_SHM_FOUND} AND ${XCB_IMAGE_FOUND})
add_subdirectory (xcb)
endif()

33
framebuffers/qt/CMakeLists.txt
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@@ -1,33 +0,0 @@
include_directories (${CMAKE_CURRENT_SOURCE_DIR}
${CMAKE_CURRENT_BINARY_DIR}
)
set (krfb_framebuffer_qt_SRCS
qtframebuffer.cpp
qtframebufferplugin.cpp
)
ecm_qt_declare_logging_category(krfb_framebuffer_qt_SRCS
HEADER krfb_fb_qt_debug.h
IDENTIFIER KRFB_FB_QT
CATEGORY_NAME krfb.framebuffer.qt
DESCRIPTION "KRFB Qt framebuffer plugin"
EXPORT KRFB
)
add_library(krfb_framebuffer_qt
MODULE
${krfb_framebuffer_qt_SRCS}
)
target_link_libraries (krfb_framebuffer_qt
Qt5::Core
Qt5::Gui
KF5::CoreAddons
krfbprivate
)
set_target_properties(krfb_framebuffer_qt PROPERTIES OUTPUT_NAME qt)
install (TARGETS krfb_framebuffer_qt
DESTINATION ${KDE_INSTALL_PLUGINDIR}/krfb/framebuffer
)

6
framebuffers/qt/qt.json
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@@ -1,6 +0,0 @@
{
"X-KDE-OnlyShowOnQtPlatforms": [
"xcb"
]
}

128
framebuffers/qt/qtframebuffer.cpp
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@@ -1,128 +0,0 @@
/* This file is part of the KDE project
Copyright (C) 2007 Alessandro Praduroux <pradu@pradu.it>
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.
*/
#include "qtframebuffer.h"
#include <QTimer>
#include <QRegion>
#include <QPixmap>
#include <QBitmap>
#include <QApplication>
#include <QDesktopWidget>
#include <QScreen>
const int UPDATE_TIME = 500;
QtFrameBuffer::QtFrameBuffer(QObject *parent)
: FrameBuffer(parent)
{
win = QApplication::desktop()->winId();
QScreen *screen = QGuiApplication::primaryScreen();
if (screen) {
primaryScreen = screen;
fbImage = screen->grabWindow(win).toImage();
fb = new char[fbImage.sizeInBytes()];
} else {
fb = nullptr;
primaryScreen = nullptr;
}
t = new QTimer(this);
connect(t, &QTimer::timeout, this, &QtFrameBuffer::updateFrameBuffer);
}
QtFrameBuffer::~QtFrameBuffer()
{
if (fb)
delete [] fb;
fb = nullptr;
}
int QtFrameBuffer::depth()
{
return fbImage.depth();
}
int QtFrameBuffer::height()
{
return fbImage.height();
}
int QtFrameBuffer::width()
{
return fbImage.width();
}
void QtFrameBuffer::getServerFormat(rfbPixelFormat &format)
{
format.bitsPerPixel = 32;
format.depth = 32;
format.trueColour = true;
format.bigEndian = false;
format.redShift = 16;
format.greenShift = 8;
format.blueShift = 0;
format.redMax = 0xff;
format.greenMax = 0xff;
format.blueMax = 0xff;
}
void QtFrameBuffer::updateFrameBuffer()
{
if (!fb || !primaryScreen) return;
QImage img = primaryScreen->grabWindow(win).toImage();
#if 0 // This is actually slower than updating the whole desktop...
QSize imgSize = img.size();
// verify what part of the image need to be marked as changed
// fbImage is the previous version of the image,
// img is the current one
QImage map(imgSize, QImage::Format_Mono);
map.fill(0);
for (int x = 0; x < imgSize.width(); x++) {
for (int y = 0; y < imgSize.height(); y++) {
if (img.pixel(x, y) != fbImage.pixel(x, y)) {
map.setPixel(x, y, 1);
}
}
}
QRegion r(QBitmap::fromImage(map));
tiles = tiles + r.rects();
#else
tiles.append(img.rect());
#endif
memcpy(fb, img.bits(), static_cast<size_t>(img.sizeInBytes()));
fbImage = img;
}
int QtFrameBuffer::paddedWidth()
{
return fbImage.width() * 4;
}
void QtFrameBuffer::startMonitor()
{
t->start(UPDATE_TIME);
}
void QtFrameBuffer::stopMonitor()
{
t->stop();
}

47
framebuffers/qt/qtframebuffer.h
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@@ -1,47 +0,0 @@
/* This file is part of the KDE project
Copyright (C) 2007 Alessandro Praduroux <pradu@pradu.it>
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.
*/
#ifndef KRFB_FRAMEBUFFER_QT_QTFRAMEBUFFER_H
#define KRFB_FRAMEBUFFER_QT_QTFRAMEBUFFER_H
#include <QImage>
#include "framebuffer.h"
class QTimer;
class QScreen;
/**
@author Alessandro Praduroux <pradu@pradu.it>
*/
class QtFrameBuffer : public FrameBuffer
{
Q_OBJECT
public:
explicit QtFrameBuffer(QObject *parent = nullptr);
~QtFrameBuffer() override;
int depth() override;
int height() override;
int width() override;
int paddedWidth() override;
void getServerFormat(rfbPixelFormat &format) override;
void startMonitor() override;
void stopMonitor() override;
public Q_SLOTS:
void updateFrameBuffer();
private:
WId win;
QImage fbImage;
QTimer *t;
QScreen *primaryScreen;
};
#endif

41
framebuffers/qt/qtframebufferplugin.cpp
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@@ -1,41 +0,0 @@
/* This file is part of the KDE project
Copyright (C) 2009 Collabora Ltd <info@collabora.co.uk>
@author George Goldberg <george.goldberg@collabora.co.uk>
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; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "qtframebufferplugin.h"
#include "qtframebuffer.h"
#include <KPluginFactory>
K_PLUGIN_CLASS_WITH_JSON(QtFrameBufferPlugin, "qt.json")
QtFrameBufferPlugin::QtFrameBufferPlugin(QObject *parent, const QVariantList &args)
: FrameBufferPlugin(parent, args)
{
}
FrameBuffer *QtFrameBufferPlugin::frameBuffer(const QVariantMap &args)
{
Q_UNUSED(args);
return new QtFrameBuffer;
}
#include "qtframebufferplugin.moc"

45
framebuffers/qt/qtframebufferplugin.h
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@@ -1,45 +0,0 @@
/* This file is part of the KDE project
Copyright (C) 2009 Collabora Ltd <info@collabora.co.uk>
@author George Goldberg <george.goldberg@collabora.co.uk>
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; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef KRFB_FRAMEBUFFER_QT_QTFRAMEBUFFERPLUGIN_H
#define KRFB_FRAMEBUFFER_QT_QTFRAMEBUFFERPLUGIN_H
#include "framebufferplugin.h"
#include <QWidget>
class FrameBuffer;
class QtFrameBufferPlugin : public FrameBufferPlugin
{
Q_OBJECT
public:
QtFrameBufferPlugin(QObject *parent, const QVariantList &args);
FrameBuffer *frameBuffer(const QVariantMap &args) override;
private:
Q_DISABLE_COPY(QtFrameBufferPlugin)
};
#endif // Header guard