QWaylandXCompositeGLXContext Class Reference

#include <qwaylandxcompositeglxcontext.h>

Inheritance diagram for QWaylandXCompositeGLXContext:

Public Functions
void	doneCurrent ()
	Reimplement in subclass to release current context. More...
void	geometryChanged ()
void *	getProcAddress (const QString &procName)
	Reimplement in subclass to native getProcAddr calls. More...
void	makeCurrent ()
	Reimplement in subclass to do makeCurrent on native GL context. More...
QPlatformWindowFormat	platformWindowFormat () const
	QWidget has the function qplatformWindowFormat(). More...
	QWaylandXCompositeGLXContext (QWaylandXCompositeGLXIntegration *glxIntegration, QWaylandXCompositeGLXWindow *window)
void	swapBuffers ()
	Reimplement in subclass to native swap buffers calls. More...
Public Functions inherited from QPlatformGLContext
	QPlatformGLContext ()
	All subclasses needs to specify the platformWindow. More...
virtual	~QPlatformGLContext ()
	If this is the current context for the thread, doneCurrent is called. More...

Private Functions
void	waitForSync ()

Static Private Functions
static void	sync_function (void *data)

Properties
QWaylandBuffer *	mBuffer
GLXFBConfig	mConfig
GLXContext	mContext
QWaylandXCompositeGLXIntegration *	mGlxIntegration
bool	mWaitingForSyncCallback
QWaylandXCompositeGLXWindow *	mWindow
Window	mXWindow

Additional Inherited Members
Static Public Functions inherited from QPlatformGLContext
static const QPlatformGLContext *	currentContext ()
	Returns the last context which called makeCurrent. More...
Protected Variables inherited from QPlatformGLContext
QScopedPointer< QPlatformGLContextPrivate >	d_ptr

Detailed Description

Definition at line 57 of file qwaylandxcompositeglxcontext.h.

Constructors and Destructors

QWaylandXCompositeGLXContext()

QWaylandXCompositeGLXContext::QWaylandXCompositeGLXContext	(	QWaylandXCompositeGLXIntegration *	glxIntegration,
		QWaylandXCompositeGLXWindow *	window
	)

Definition at line 52 of file qwaylandxcompositeglxcontext.cpp.

    : QPlatformGLContext()
    , mGlxIntegration(glxIntegration)
    , mWindow(window)
    , mBuffer(0)
    , mXWindow(0)
    , mConfig(qglx_findConfig(glxIntegration->xDisplay(),glxIntegration->screen(),window->widget()->platformWindowFormat()))
    , mWaitingForSyncCallback(false)
{
    XVisualInfo *visualInfo = glXGetVisualFromFBConfig(glxIntegration->xDisplay(),mConfig);
    mContext = glXCreateContext(glxIntegration->xDisplay(),visualInfo,0,TRUE);

    geometryChanged();
}

Functions

doneCurrent()

void QWaylandXCompositeGLXContext::doneCurrent ( )

virtual

Reimplement in subclass to release current context.

Typically this is calling makeCurrent with 0 "surface"

Reimplemented from QPlatformGLContext.

Definition at line 73 of file qwaylandxcompositeglxcontext.cpp.

{
    glXMakeCurrent(mGlxIntegration->xDisplay(),0,0);
    QPlatformGLContext::doneCurrent();
}

geometryChanged()

void QWaylandXCompositeGLXContext::geometryChanged

(

)

Definition at line 117 of file qwaylandxcompositeglxcontext.cpp.

Referenced by QWaylandXCompositeGLXContext(), and QWaylandXCompositeGLXWindow::setGeometry().

{
    QSize size(mWindow->geometry().size());
    if (size.isEmpty()) {
        //QGLWidget wants a context for a window without geometry
        size = QSize(1,1);
    }

    delete mBuffer;
    //XFreePixmap deletes the glxPixmap as well
    if (mXWindow) {
        XDestroyWindow(mGlxIntegration->xDisplay(),mXWindow);
    }

    XVisualInfo *visualInfo = glXGetVisualFromFBConfig(mGlxIntegration->xDisplay(),mConfig);
    Colormap cmap = XCreateColormap(mGlxIntegration->xDisplay(),mGlxIntegration->rootWindow(),visualInfo->visual,AllocNone);

    XSetWindowAttributes a;
    a.background_pixel = WhitePixel(mGlxIntegration->xDisplay(), mGlxIntegration->screen());
    a.border_pixel = BlackPixel(mGlxIntegration->xDisplay(), mGlxIntegration->screen());
    a.colormap = cmap;
    mXWindow = XCreateWindow(mGlxIntegration->xDisplay(), mGlxIntegration->rootWindow(),0, 0, size.width(), size.height(),
                             0, visualInfo->depth, InputOutput, visualInfo->visual,
                             CWBackPixel|CWBorderPixel|CWColormap, &a);

    XCompositeRedirectWindow(mGlxIntegration->xDisplay(), mXWindow, CompositeRedirectManual);
    XMapWindow(mGlxIntegration->xDisplay(), mXWindow);

    XSync(mGlxIntegration->xDisplay(),False);
    mBuffer = new QWaylandXCompositeBuffer(mGlxIntegration->waylandXComposite(),
                                           (uint32_t)mXWindow,
                                           size,
                                           mGlxIntegration->waylandDisplay()->argbVisual());
    mWindow->attach(mBuffer);
    waitForSync();
}

getProcAddress()

void * QWaylandXCompositeGLXContext::getProcAddress ( const QString &  procName )

virtual

Reimplement in subclass to native getProcAddr calls.

Note: its convenient to use qPrintable(const QString &str) to get the const char * pointer

Implements QPlatformGLContext.

Definition at line 88 of file qwaylandxcompositeglxcontext.cpp.

{
    return (void *) glXGetProcAddress(reinterpret_cast<GLubyte *>(procName.toLatin1().data()));
}

makeCurrent()

void QWaylandXCompositeGLXContext::makeCurrent ( )

virtual

Reimplement in subclass to do makeCurrent on native GL context.

Reimplemented from QPlatformGLContext.

Definition at line 67 of file qwaylandxcompositeglxcontext.cpp.

{
    QPlatformGLContext::makeCurrent();
    glXMakeCurrent(mGlxIntegration->xDisplay(),mXWindow,mContext);
}

platformWindowFormat()

QPlatformWindowFormat QWaylandXCompositeGLXContext::platformWindowFormat ( ) const

virtual

QWidget has the function qplatformWindowFormat().

That function is for the application programmer to request the format of the window and the context that he wants.

Reimplement this function in a subclass to indicate what format the glContext actually has.

Implements QPlatformGLContext.

Definition at line 93 of file qwaylandxcompositeglxcontext.cpp.

{
    return qglx_platformWindowFromGLXFBConfig(mGlxIntegration->xDisplay(),mConfig,mContext);
}

swapBuffers()

void QWaylandXCompositeGLXContext::swapBuffers ( )

virtual

Reimplement in subclass to native swap buffers calls.

Implements QPlatformGLContext.

Definition at line 79 of file qwaylandxcompositeglxcontext.cpp.

{
    QSize size = mWindow->geometry().size();

    glXSwapBuffers(mGlxIntegration->xDisplay(),mXWindow);
    mWindow->damage(QRect(QPoint(0,0),size));
    mWindow->waitForFrameSync();
}

sync_function()

void QWaylandXCompositeGLXContext::sync_function ( void *  data )

staticprivate

Definition at line 98 of file qwaylandxcompositeglxcontext.cpp.

Referenced by waitForSync().

{
    QWaylandXCompositeGLXContext *that = static_cast<QWaylandXCompositeGLXContext *>(data);
    that->mWaitingForSyncCallback = false;
}

waitForSync()

void QWaylandXCompositeGLXContext::waitForSync ( )

private

Definition at line 104 of file qwaylandxcompositeglxcontext.cpp.

Referenced by geometryChanged().

{
    wl_display_sync_callback(mGlxIntegration->waylandDisplay()->wl_display(),
                             QWaylandXCompositeGLXContext::sync_function,
                             this);
    mWaitingForSyncCallback = true;
    wl_display_sync(mGlxIntegration->waylandDisplay()->wl_display(),0);
    mGlxIntegration->waylandDisplay()->flushRequests();
    while (mWaitingForSyncCallback) {
        mGlxIntegration->waylandDisplay()->readEvents();
    }
}

Properties

mBuffer

QWaylandBuffer* QWaylandXCompositeGLXContext::mBuffer

private

Definition at line 74 of file qwaylandxcompositeglxcontext.h.

Referenced by geometryChanged().

mConfig

GLXFBConfig QWaylandXCompositeGLXContext::mConfig

private

Definition at line 77 of file qwaylandxcompositeglxcontext.h.

Referenced by geometryChanged(), platformWindowFormat(), and QWaylandXCompositeGLXContext().

mContext

GLXContext QWaylandXCompositeGLXContext::mContext

private

Definition at line 78 of file qwaylandxcompositeglxcontext.h.

Referenced by makeCurrent(), platformWindowFormat(), and QWaylandXCompositeGLXContext().

mGlxIntegration

QWaylandXCompositeGLXIntegration* QWaylandXCompositeGLXContext::mGlxIntegration

private

Definition at line 72 of file qwaylandxcompositeglxcontext.h.

Referenced by doneCurrent(), geometryChanged(), makeCurrent(), platformWindowFormat(), swapBuffers(), and waitForSync().

mWaitingForSyncCallback

bool QWaylandXCompositeGLXContext::mWaitingForSyncCallback

private

Definition at line 82 of file qwaylandxcompositeglxcontext.h.

Referenced by sync_function(), and waitForSync().

mWindow

QWaylandXCompositeGLXWindow* QWaylandXCompositeGLXContext::mWindow

private

Definition at line 73 of file qwaylandxcompositeglxcontext.h.

Referenced by geometryChanged(), and swapBuffers().

mXWindow

Window QWaylandXCompositeGLXContext::mXWindow

private

Definition at line 76 of file qwaylandxcompositeglxcontext.h.

Referenced by geometryChanged(), makeCurrent(), and swapBuffers().

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The documentation for this class was generated from the following files:

• /src/plugins/platforms/wayland/gl_integration/xcomposite_glx/qwaylandxcompositeglxcontext.h
• /src/plugins/platforms/wayland/gl_integration/xcomposite_glx/qwaylandxcompositeglxcontext.cpp