C++ (Cpp) xcb_aux_find_visual_by_id Examples

Example #1

File: test_bitmap.c Project: freedesktop-unofficial-mirror/xcb__util-image

static xcb_window_t make_window(xcb_connection_t *c,
				xcb_screen_t *s,
				uint32_t bg,
				uint32_t fg,
				uint32_t width,
				uint32_t height) {
    uint32_t mask = 0;
    xcb_params_cw_t cwa;
    xcb_window_t w;
    xcb_void_cookie_t check_cookie;
    xcb_generic_error_t *error;
    xcb_visualtype_t *v = xcb_aux_find_visual_by_id(s, s->root_visual);
    assert(v);
    XCB_AUX_ADD_PARAM(&mask, &cwa, back_pixel, bg);
    XCB_AUX_ADD_PARAM(&mask, &cwa, border_pixel, fg);
    XCB_AUX_ADD_PARAM(&mask, &cwa, override_redirect, 1);
    XCB_AUX_ADD_PARAM(&mask, &cwa, event_mask,
		      XCB_EVENT_MASK_BUTTON_PRESS |
		      XCB_EVENT_MASK_EXPOSURE);
    w = xcb_generate_id(c);
    check_cookie = xcb_aux_create_window_checked(c,
      s->root_depth, w, s->root, 0, 0, width, height, 1,
      XCB_WINDOW_CLASS_INPUT_OUTPUT, v->visual_id, mask, &cwa);
    error = xcb_request_check(c, check_cookie);
    assert(!error);
    check_cookie = xcb_map_window_checked(c, w);
    error = xcb_request_check(c, check_cookie);
    assert(!error);
    return w;
}

Example #2

File: ephyr_glamor_glx.c Project: XQuartz/xorg-server

xcb_visualtype_t *
ephyr_glamor_get_visual(void)
{
    xcb_screen_t *xscreen =
        xcb_aux_get_screen(XGetXCBConnection(dpy), DefaultScreen(dpy));
    int attribs[] = {
        GLX_RENDER_TYPE, GLX_RGBA_BIT,
        GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT,
        GLX_RED_SIZE, 1,
        GLX_GREEN_SIZE, 1,
        GLX_BLUE_SIZE, 1,
        GLX_DOUBLEBUFFER, 1,
        None
    };
    int event_base = 0, error_base = 0, nelements;
    GLXFBConfig *fbconfigs;

    if (!glXQueryExtension (dpy, &error_base, &event_base))
        FatalError("Couldn't find GLX extension\n");

    fbconfigs = glXChooseFBConfig(dpy, DefaultScreen(dpy), attribs, &nelements);
    if (!nelements)
        FatalError("Couldn't choose an FBConfig\n");
    fb_config = fbconfigs[0];
    free(fbconfigs);

    visual_info = glXGetVisualFromFBConfig(dpy, fb_config);
    if (visual_info == NULL)
        FatalError("Couldn't get RGB visual\n");

    return xcb_aux_find_visual_by_id(xscreen, visual_info->visualid);
}

Example #3

File: towel.c Project: kanru/towel

static void
towel_window_init_cairo(towel_window_t *win)
{
  xcb_visualtype_t *vt;

  xcb_get_geometry_cookie_t cookie = xcb_get_geometry_unchecked(win->conn,
                                                                win->id);
  xcb_get_geometry_reply_t *geo = xcb_get_geometry_reply(win->conn, cookie, NULL);

  vt = xcb_aux_find_visual_by_id(win->screen, win->screen->root_visual);
  win->cs = cairo_xcb_surface_create(win->conn, win->id,
                                     vt, geo->width, geo->height);
  win->cr = cairo_create(win->cs);

  free(geo);
}