RetroArch/gfx/display_servers/dispserv_x11.c

69 lines
2.0 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2017 - Daniel De Matteis
* Copyright (C) 2016-2017 - Brad Parker
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include "../video_display_server.h"
#include "../common/x11_common.h"
#include "../../configuration.h"
typedef struct
{
unsigned opacity;
} dispserv_x11_t;
static void* x11_display_server_init(void)
{
dispserv_x11_t *dispserv = (dispserv_x11_t*)calloc(1, sizeof(*dispserv));
if (!dispserv)
return NULL;
return dispserv;
}
static void x11_display_server_destroy(void)
{
}
static bool x11_set_window_opacity(void *data, unsigned opacity)
{
dispserv_x11_t *serv = (dispserv_x11_t*)data;
Atom net_wm_opacity = XInternAtom(g_x11_dpy, "_NET_WM_WINDOW_OPACITY", False);
Atom cardinal = XInternAtom(g_x11_dpy, "CARDINAL", False);
settings_t *settings = config_get_ptr();
serv->opacity = opacity;
opacity = opacity * ((unsigned)-1 / 100.0);
if (opacity == (unsigned)-1)
XDeleteProperty(g_x11_dpy, g_x11_win, net_wm_opacity);
else
XChangeProperty(g_x11_dpy, g_x11_win, net_wm_opacity, cardinal, 32, PropModeReplace, (const unsigned char*)&opacity, 1);
return true;
}
const video_display_server_t dispserv_x11 = {
x11_display_server_init,
x11_display_server_destroy,
x11_set_window_opacity,
NULL,
"x11"
};