diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/plugins/gfxdrivers/eglnullws/README | 48 | ||||
| -rw-r--r-- | src/plugins/gfxdrivers/eglnullws/eglnullws.pro | 18 | ||||
| -rw-r--r-- | src/plugins/gfxdrivers/eglnullws/eglnullwsscreen.cpp | 141 | ||||
| -rw-r--r-- | src/plugins/gfxdrivers/eglnullws/eglnullwsscreen.h | 28 | ||||
| -rw-r--r-- | src/plugins/gfxdrivers/eglnullws/eglnullwsscreenplugin.cpp | 25 | ||||
| -rw-r--r-- | src/plugins/gfxdrivers/eglnullws/eglnullwsscreenplugin.h | 6 | ||||
| -rw-r--r-- | src/plugins/gfxdrivers/eglnullws/eglnullwswindowsurface.cpp | 43 | ||||
| -rw-r--r-- | src/plugins/gfxdrivers/eglnullws/eglnullwswindowsurface.h | 22 | ||||
| -rw-r--r-- | src/plugins/gfxdrivers/gfxdrivers.pro | 1 |
9 files changed, 332 insertions, 0 deletions
diff --git a/src/plugins/gfxdrivers/eglnullws/README b/src/plugins/gfxdrivers/eglnullws/README new file mode 100644 index 0000000..80b88c7 --- /dev/null +++ b/src/plugins/gfxdrivers/eglnullws/README @@ -0,0 +1,48 @@ +EGL NullWS QScreen Driver +========================= + +If your application draws everything within a single full-screen QGLWidget then +you may wish to use this QScreen plugin driver. This driver simply returns 0 +(as a EGLNativeWindowType value) when asked by the QtOpenGl module to create a +native window. Some OpenGL ES implementations (including PowerVR) interpret this +to mean that a full-screen OpenGL context is desired without any windowing +support (NullWS). + +To tell a Qt/Embedded application to use this driver use the -display command +line option or the QWS_DISPLAY environment variable. The following driver +options are supported: + +size=WIDTHxHEIGHT Screen size reported by the driver +format=FORMAT Screen format + +Run with '-display eglnullws:help' to get a full list of options (including a +list of supported format strings). + +If you choose a screen format that is not supported by the hardware then the +QtOpenGl module will write out a list of supported EGL configurations. Use +one of the supported screen formats from this list. + +Using this driver with PowerVR hardware +--------------------------------------- + +Using this plugin with PowerVR hardware should give a significant speedup +compared to running with the Qt powervr driver (with a full-screen QGLWidget). +This is because sacrificing the window system allows less work to be done in +order to get graphics on the screen. Using this driver also avoids the memory +fragmentation issues present in the powervr driver and avoids any direct +dependencies on the deprecated PVR2D API from Imagination Technologies. + +To use this driver ensure you have /etc/powervr.ini with contents similar to +this: + +[default] +WindowSystem=libpvrPVR2D_FLIPWSEGL.so + +This driver will also function with libpvrPVR2D_FRONTWSEGL.so, but that draws +straight into the framebuffer and will therefore cause flickering (it can be +useful for performance testing though). The flip plugin uses triple buffering, +so you will need to set the virtual vertical resolution of your framebuffer to +be three times the physical vertical resolution of your screen. This can be +done with 'fbset -vyres'. Failure to do this can cause system crashes. You +should also ensure that the plugin you choose in powervr.ini is in your library +path (it may just silently default to the flip plugin if not). diff --git a/src/plugins/gfxdrivers/eglnullws/eglnullws.pro b/src/plugins/gfxdrivers/eglnullws/eglnullws.pro new file mode 100644 index 0000000..242ab07 --- /dev/null +++ b/src/plugins/gfxdrivers/eglnullws/eglnullws.pro @@ -0,0 +1,18 @@ +TARGET = qeglnullws +include(../../qpluginbase.pri) + +CONFIG += warn_on +QT += opengl + +QTDIR_build:DESTDIR = $$QT_BUILD_TREE/plugins/gfxdrivers + +target.path = $$[QT_INSTALL_PLUGINS]/gfxdrivers +INSTALLS += target + +HEADERS = eglnullwsscreen.h \ + eglnullwsscreenplugin.h \ + eglnullwswindowsurface.h + +SOURCES = eglnullwsscreen.cpp \ + eglnullwsscreenplugin.cpp \ + eglnullwswindowsurface.cpp diff --git a/src/plugins/gfxdrivers/eglnullws/eglnullwsscreen.cpp b/src/plugins/gfxdrivers/eglnullws/eglnullwsscreen.cpp new file mode 100644 index 0000000..9a21447 --- /dev/null +++ b/src/plugins/gfxdrivers/eglnullws/eglnullwsscreen.cpp @@ -0,0 +1,141 @@ +#include "eglnullwsscreen.h" +#include "eglnullwswindowsurface.h" +#include "eglnullwsscreenplugin.h" + +#include <QHash> +#include <QDebug> + +namespace +{ + class EGLNullWSScreenSurfaceFunctions : public QGLScreenSurfaceFunctions + { + public: + virtual bool createNativeWindow(QWidget *, EGLNativeWindowType *native) + { *native = 0; return true; } + }; +} + +EGLNullWSScreen::EGLNullWSScreen(int displayId) : QGLScreen(displayId) {} + +EGLNullWSScreen::~EGLNullWSScreen() {} + +bool EGLNullWSScreen::initDevice() +{ + setSurfaceFunctions(new EGLNullWSScreenSurfaceFunctions); + return true; +} + +static const QHash<QString, QImage::Format> & formatDictionary() +{ + static QHash<QString, QImage::Format> dictionary; + if (dictionary.isEmpty()) { + dictionary["rgb32"] = QImage::Format_RGB32; + dictionary["argb32"] = QImage::Format_ARGB32; + dictionary["rgb16"] = QImage::Format_RGB16; + dictionary["rgb666"] = QImage::Format_RGB666; + dictionary["rgb555"] = QImage::Format_RGB555; + dictionary["rgb888"] = QImage::Format_RGB888; + dictionary["rgb444"] = QImage::Format_RGB444; + } + return dictionary; +} + +static int depthForFormat(QImage::Format format) +{ + switch (format) { + case QImage::Format_RGB32: return 32; + case QImage::Format_ARGB32: return 32; + case QImage::Format_RGB16: return 16; + case QImage::Format_RGB666: return 24; + case QImage::Format_RGB555: return 16; + case QImage::Format_RGB888: return 24; + case QImage::Format_RGB444: return 16; + default: + Q_ASSERT(!"Unknown format"); + return -1; + } +} + +static void printHelp() +{ + QByteArray formatsBuf; + QTextStream(&formatsBuf) << QStringList(formatDictionary().keys()).join(", "); + qWarning( + "%s: Valid options are:\n" + "size=WIDTHxHEIGHT Screen size reported by this driver\n" + "format=FORMAT Screen format, where FORMAT is one of the following:\n" + " %s\n", + PluginName, + formatsBuf.constData()); +} + +bool EGLNullWSScreen::connect(const QString &displaySpec) +{ + const QStringList args = displaySpec.section(':', 1).split(':', QString::SkipEmptyParts); + Q_FOREACH(const QString arg, args) { + const QString optionName = arg.section('=', 0, 0); + const QString optionArg = arg.section('=', 1); + if (optionName == QLatin1String("size")) { + w = optionArg.section('x', 0, 0).toInt(); + h = optionArg.section('x', 1, 1).toInt(); + } else if (optionName == QLatin1String("format")) { + if (formatDictionary().contains(optionArg)) + setPixelFormat(formatDictionary().value(optionArg)); + else + printHelp(); + } else { + printHelp(); + } + } + + if (w == 0 || h == 0) { + w = 640; + h = 480; + qWarning("%s: Using default screen size %dx%d", PluginName, w, h); + } + dw = w; + dh = h; + + if (pixelFormat() == QImage::Format_Invalid) { + qWarning("%s: Using default screen format argb32", PluginName); + setPixelFormat(QImage::Format_ARGB32); + } + d = depthForFormat(pixelFormat()); + + static const int Dpi = 120; + static const qreal ScalingFactor = static_cast<qreal>(25.4) / Dpi; + physWidth = qRound(dw * ScalingFactor); + physHeight = qRound(dh * ScalingFactor); + + return true; +} + +void EGLNullWSScreen::disconnect() {} + +void EGLNullWSScreen::shutdownDevice() {} + +void EGLNullWSScreen::setMode(int /*width*/, int /*height*/, int /*depth*/) {} + +void EGLNullWSScreen::blank(bool /*on*/) {} + +void EGLNullWSScreen::exposeRegion(QRegion /*r*/, int /*changing*/) {} + +QWSWindowSurface* EGLNullWSScreen::createSurface(QWidget *widget) const +{ + if (qobject_cast<QGLWidget*>(widget)) { + return new EGLNullWSWindowSurface(widget); + } else { + qWarning("%s: Creating non-GL surface", PluginName); + return QScreen::createSurface(widget); + } +} + +QWSWindowSurface* EGLNullWSScreen::createSurface(const QString &key) const +{ + if (key == QLatin1String("eglnullws")) { + return new EGLNullWSWindowSurface; + } else { + qWarning("%s: Creating non-GL surface", PluginName); + return QScreen::createSurface(key); + } +} diff --git a/src/plugins/gfxdrivers/eglnullws/eglnullwsscreen.h b/src/plugins/gfxdrivers/eglnullws/eglnullwsscreen.h new file mode 100644 index 0000000..9b620a4 --- /dev/null +++ b/src/plugins/gfxdrivers/eglnullws/eglnullwsscreen.h @@ -0,0 +1,28 @@ +#ifndef EGLNULLWSSCREEN +#define EGLNULLWSSCREEN + +#include <QGLScreen> + +class EGLNullWSScreen : public QGLScreen +{ +public: + EGLNullWSScreen(int displayId); + virtual ~EGLNullWSScreen(); + + virtual bool initDevice(); + virtual bool connect(const QString &displaySpec); + virtual void disconnect(); + virtual void shutdownDevice(); + + virtual void setMode(int width, int height, int depth); + virtual void blank(bool on); + + virtual void exposeRegion(QRegion r, int changing); + + virtual QWSWindowSurface* createSurface(QWidget *widget) const; + virtual QWSWindowSurface* createSurface(const QString &key) const; + + virtual bool hasOpenGL() { return true; } +}; + +#endif // EGLNULLWSSCREEN diff --git a/src/plugins/gfxdrivers/eglnullws/eglnullwsscreenplugin.cpp b/src/plugins/gfxdrivers/eglnullws/eglnullwsscreenplugin.cpp new file mode 100644 index 0000000..354ddef --- /dev/null +++ b/src/plugins/gfxdrivers/eglnullws/eglnullwsscreenplugin.cpp @@ -0,0 +1,25 @@ +#include "eglnullwsscreenplugin.h" +#include "eglnullwsscreen.h" + +#include <QScreenDriverPlugin> +#include <QStringList> + +class EGLNullWSScreenPlugin : public QScreenDriverPlugin +{ +public: + virtual QStringList keys() const; + virtual QScreen *create(const QString& driver, int displayId); +}; + +QStringList EGLNullWSScreenPlugin::keys() const +{ + return QStringList() << QLatin1String(PluginName); +} + +QScreen *EGLNullWSScreenPlugin::create(const QString& driver, int displayId) +{ + return (driver.toLower() == QLatin1String(PluginName) ? + new EGLNullWSScreen(displayId) : 0); +} + +Q_EXPORT_PLUGIN2(qeglnullws, EGLNullWSScreenPlugin) diff --git a/src/plugins/gfxdrivers/eglnullws/eglnullwsscreenplugin.h b/src/plugins/gfxdrivers/eglnullws/eglnullwsscreenplugin.h new file mode 100644 index 0000000..14e2a82 --- /dev/null +++ b/src/plugins/gfxdrivers/eglnullws/eglnullwsscreenplugin.h @@ -0,0 +1,6 @@ +#ifndef EGLNULLWSSCREENPLUGIN_H +#define EGLNULLWSSCREENPLUGIN_H + +const char *const PluginName = "eglnullws"; + +#endif // EGLNULLWSSCREENPLUGIN_H diff --git a/src/plugins/gfxdrivers/eglnullws/eglnullwswindowsurface.cpp b/src/plugins/gfxdrivers/eglnullws/eglnullwswindowsurface.cpp new file mode 100644 index 0000000..016748e --- /dev/null +++ b/src/plugins/gfxdrivers/eglnullws/eglnullwswindowsurface.cpp @@ -0,0 +1,43 @@ +#include "eglnullwswindowsurface.h" +#include "eglnullwsscreenplugin.h" + +#include <QGLWidget> + +static const QWSWindowSurface::SurfaceFlags Flags + = QWSWindowSurface::RegionReserved | QWSWindowSurface::RegionReserved; + +EGLNullWSWindowSurface::EGLNullWSWindowSurface(QWidget *w) + : + QWSGLWindowSurface(w), + widget(w) +{ + setSurfaceFlags(Flags); +} + +EGLNullWSWindowSurface::EGLNullWSWindowSurface() + : widget(0) +{ + setSurfaceFlags(Flags); +} + +EGLNullWSWindowSurface::~EGLNullWSWindowSurface() {} + +QString EGLNullWSWindowSurface::key() const +{ + return QLatin1String(PluginName); +} + +QPaintDevice *EGLNullWSWindowSurface::paintDevice() +{ + return widget; +} + +bool EGLNullWSWindowSurface::isValid() const +{ + return qobject_cast<QGLWidget *>(window()); +} + +QImage EGLNullWSWindowSurface::image() const +{ + return QImage(); +} diff --git a/src/plugins/gfxdrivers/eglnullws/eglnullwswindowsurface.h b/src/plugins/gfxdrivers/eglnullws/eglnullwswindowsurface.h new file mode 100644 index 0000000..7e5d2fa --- /dev/null +++ b/src/plugins/gfxdrivers/eglnullws/eglnullwswindowsurface.h @@ -0,0 +1,22 @@ +#ifndef EGLNULLWSWINDOWSURFACE_H +#define EGLNULLWSWINDOWSURFACE_H + +#include <private/qglwindowsurface_qws_p.h> + +class EGLNullWSWindowSurface : public QWSGLWindowSurface +{ +public: + EGLNullWSWindowSurface(QWidget *widget); + EGLNullWSWindowSurface(); + virtual ~EGLNullWSWindowSurface(); + + virtual QString key() const; + virtual QPaintDevice *paintDevice(); + virtual bool isValid() const; + virtual QImage image() const; + +private: + QWidget *widget; +}; + +#endif // EGLNULLWSWINDOWSURFACE_H diff --git a/src/plugins/gfxdrivers/gfxdrivers.pro b/src/plugins/gfxdrivers/gfxdrivers.pro index d1ee3f2..1f38942 100644 --- a/src/plugins/gfxdrivers/gfxdrivers.pro +++ b/src/plugins/gfxdrivers/gfxdrivers.pro @@ -7,3 +7,4 @@ contains(gfx-plugins, vnc) :SUBDIRS += vnc contains(gfx-plugins, transformed) :SUBDIRS += transformed contains(gfx-plugins, svgalib) :SUBDIRS += svgalib contains(gfx-plugins, powervr) :SUBDIRS += powervr +contains(gfx-plugins, eglnullws) :SUBDIRS += eglnullws |