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Allow derived classes to specify custom Visual and Colormap.

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This commit is contained in:
gb 2010-03-25 17:18:06 +00:00
parent 86954a32c5
commit b36a2142e4
4 changed files with 55 additions and 25 deletions
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47
gst-libs/gst/vaapi/gstvaapiutils_x11.c
View file

@ -57,36 +57,38 @@ static const int x11_event_mask = (KeyPressMask |
/**
* x11_create_window:
* @display: an X11 #Display
* @width: the requested width, in pixels
* @height: the requested height, in pixels
* @dpy: an X11 #Display
* @w: the requested width, in pixels
* @h: the requested height, in pixels
* @vis: the request visual
* @cmap: the request colormap
*
* Creates a border-less window with the specified dimensions. If @vis
* is %NULL, the default visual for @display will be used. The default
* background color is black.
* is %NULL, the default visual for @display will be used. If @cmap is
* %None, no specific colormap will be bound to the window. Also note
* the default background color is black.
*
* Return value: the newly created X #Window.
*/
Window
x11_create_window(Display *display, guint width, guint height, Visual *vis)
x11_create_window(Display *dpy, guint w, guint h, Visual *vis, Colormap cmap)
{
Window root_window, window;
Window rootwin, win;
int screen, depth;
XSetWindowAttributes xswa;
unsigned long xswa_mask;
XWindowAttributes wattr;
unsigned long black_pixel, white_pixel;
screen = DefaultScreen(display);
root_window = RootWindow(display, screen);
black_pixel = BlackPixel(display, screen);
white_pixel = WhitePixel(display, screen);
screen = DefaultScreen(dpy);
rootwin = RootWindow(dpy, screen);
black_pixel = BlackPixel(dpy, screen);
white_pixel = WhitePixel(dpy, screen);
if (!vis)
vis = DefaultVisual(display, screen);
vis = DefaultVisual(dpy, screen);
XGetWindowAttributes(display, root_window, &wattr);
XGetWindowAttributes(dpy, rootwin, &wattr);
depth = wattr.depth;
if (depth != 15 && depth != 16 && depth != 24 && depth != 32)
depth = 24;
@ -95,21 +97,26 @@ x11_create_window(Display *display, guint width, guint height, Visual *vis)
xswa.border_pixel = black_pixel;
xswa.background_pixel = black_pixel;
window = XCreateWindow(
display,
root_window,
0, 0, width, height,
if (cmap) {
xswa_mask |= CWColormap;
xswa.colormap = cmap;
}
win = XCreateWindow(
dpy,
rootwin,
0, 0, w, h,
0,
depth,
InputOutput,
vis,
xswa_mask, &xswa
);
if (!window)
if (!win)
return None;
XSelectInput(display, window, x11_event_mask);
return window;
XSelectInput(dpy, win, x11_event_mask);
return win;
}
gboolean

2
gst-libs/gst/vaapi/gstvaapiutils_x11.h
View file

@ -32,7 +32,7 @@ int x11_untrap_errors(void)
attribute_hidden;
Window
x11_create_window(Display *display, guint width, guint height, Visual *vis)
x11_create_window(Display *dpy, guint w, guint h, Visual *vis, Colormap cmap)
attribute_hidden;
gboolean

22
gst-libs/gst/vaapi/gstvaapiwindow_x11.c
View file

@ -218,6 +218,9 @@ gst_vaapi_window_x11_create(GstVaapiWindow *window, guint *width, guint *height)
GstVaapiWindowX11Private * const priv = GST_VAAPI_WINDOW_X11(window)->priv;
Display * const dpy = GST_VAAPI_OBJECT_XDISPLAY(window);
Window xid = GST_VAAPI_OBJECT_ID(window);
Visual *vis = NULL;
Colormap cmap = None;
GstVaapiWindowX11Class *klass;
XWindowAttributes wattr;
Atom atoms[2];
gboolean ok;
@ -236,12 +239,25 @@ gst_vaapi_window_x11_create(GstVaapiWindow *window, guint *width, guint *height)
return ok;
}
klass = GST_VAAPI_WINDOW_X11_GET_CLASS(window);
if (klass) {
if (klass->get_visual)
vis = klass->get_visual(window);
if (klass->get_colormap)
cmap = klass->get_colormap(window);
}
GST_VAAPI_OBJECT_LOCK_DISPLAY(window);
XInternAtoms(dpy, (char **)atom_names, G_N_ELEMENTS(atom_names), False, atoms);
XInternAtoms(
dpy,
(char **)atom_names, G_N_ELEMENTS(atom_names),
False,
atoms
);
priv->atom_NET_WM_STATE = atoms[0];
priv->atom_NET_WM_STATE_FULLSCREEN = atoms[1];
xid = x11_create_window(dpy, *width, *height, NULL);
xid = x11_create_window(dpy, *width, *height, vis, cmap);
if (xid)
XRaiseWindow(dpy, xid);
GST_VAAPI_OBJECT_UNLOCK_DISPLAY(window);
@ -544,7 +560,7 @@ gst_vaapi_window_x11_new_with_xid(GstVaapiDisplay *display, Window xid)
Window
gst_vaapi_window_x11_get_xid(GstVaapiWindowX11 *window)
{
g_return_val_if_fail(GST_VAAPI_WINDOW_X11(window), None);
g_return_val_if_fail(GST_VAAPI_IS_WINDOW_X11(window), None);
return GST_VAAPI_OBJECT_ID(window);
}

7
gst-libs/gst/vaapi/gstvaapiwindow_x11.h
View file

@ -78,12 +78,19 @@ struct _GstVaapiWindowX11 {
/**
* GstVaapiWindowX11Class:
* @get_visual: virtual function to get the desired visual used to
* create the window
* @get_colormap: virtual function to get the desired colormap used to
* create the window
*
* An X11 #Window wrapper class.
*/
struct _GstVaapiWindowX11Class {
/*< private >*/
GstVaapiWindowClass parent_class;
Visual * (*get_visual) (GstVaapiWindow *window);
Colormap (*get_colormap) (GstVaapiWindow *window);
};
GType