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glx: Port GlxBackend::initBuffer() to xcb

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This commit is contained in:
Fredrik Höglund 2014-12-08 22:46:31 +01:00
parent 2b8dba8429
commit 91c087e9da
1 changed files with 17 additions and 8 deletions
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25
glxbackend.cpp
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@ -323,20 +323,29 @@ bool GlxBackend::initBuffer()
return false;
if (overlayWindow()->create()) {
xcb_connection_t * const c = connection();
// Try to create double-buffered window in the overlay
XVisualInfo* visual = glXGetVisualFromFBConfig(display(), fbconfig);
xcb_visualid_t visual;
glXGetFBConfigAttrib(display(), fbconfig, GLX_VISUAL_ID, (int *) &visual);
if (!visual) {
qCCritical(KWIN_CORE) << "Failed to get visual from fbconfig";
qCCritical(KWIN_CORE) << "The GLXFBConfig does not have an associated X visual";
return false;
}
XSetWindowAttributes attrs;
attrs.colormap = XCreateColormap(display(), rootWindow(), visual->visual, AllocNone);
const QSize &screenSize = screens()->size();
window = XCreateWindow(display(), overlayWindow()->window(), 0, 0, screenSize.width(), screenSize.height(),
0, visual->depth, InputOutput, visual->visual, CWColormap, &attrs);
xcb_colormap_t colormap = xcb_generate_id(c);
xcb_create_colormap(c, false, colormap, rootWindow(), visual);
const QSize size = screens()->size();
window = xcb_generate_id(c);
xcb_create_window(c, visualDepth(visual), window, overlayWindow()->window(),
0, 0, size.width(), size.height(), 0, XCB_WINDOW_CLASS_INPUT_OUTPUT,
visual, XCB_CW_COLORMAP, &colormap);
glxWindow = glXCreateWindow(display(), fbconfig, window, NULL);
overlayWindow()->setup(window);
XFree(visual);
} else {
qCCritical(KWIN_CORE) << "Failed to create overlay window";
return false;