mirror of
https://github.com/libretro/RetroArch.git
synced 2024-11-28 10:40:39 +00:00
370 lines
9.1 KiB
C
370 lines
9.1 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2015 - Daniel De Matteis
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <X11/Xatom.h>
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#include "x11_common.h"
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#include "../../general.h"
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static void x11_hide_mouse(Display *dpy, Window win)
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{
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static char bm_no_data[] = {0, 0, 0, 0, 0, 0, 0, 0};
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Cursor no_ptr;
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Pixmap bm_no;
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XColor black, dummy;
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Colormap colormap = DefaultColormap(dpy, DefaultScreen(dpy));
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if (!XAllocNamedColor(dpy, colormap, "black", &black, &dummy))
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return;
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bm_no = XCreateBitmapFromData(dpy, win, bm_no_data, 8, 8);
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no_ptr = XCreatePixmapCursor(dpy, bm_no, bm_no, &black, &black, 0, 0);
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XDefineCursor(dpy, win, no_ptr);
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XFreeCursor(dpy, no_ptr);
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if (bm_no != None)
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XFreePixmap(dpy, bm_no);
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XFreeColors(dpy, colormap, &black.pixel, 1, 0);
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}
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void x11_show_mouse(Display *dpy, Window win, bool state)
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{
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if (state)
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XUndefineCursor(dpy, win);
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else
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x11_hide_mouse(dpy, win);
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}
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static Atom XA_NET_WM_STATE;
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static Atom XA_NET_WM_STATE_FULLSCREEN;
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static Atom XA_NET_MOVERESIZE_WINDOW;
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#define XA_INIT(x) XA##x = XInternAtom(dpy, #x, False)
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#define _NET_WM_STATE_ADD 1
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#define MOVERESIZE_GRAVITY_CENTER 5
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#define MOVERESIZE_X_SHIFT 8
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#define MOVERESIZE_Y_SHIFT 9
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void x11_windowed_fullscreen(Display *dpy, Window win)
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{
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XEvent xev = {0};
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XA_INIT(_NET_WM_STATE);
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XA_INIT(_NET_WM_STATE_FULLSCREEN);
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xev.xclient.type = ClientMessage;
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xev.xclient.send_event = True;
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xev.xclient.message_type = XA_NET_WM_STATE;
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xev.xclient.window = win;
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xev.xclient.format = 32;
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xev.xclient.data.l[0] = _NET_WM_STATE_ADD;
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xev.xclient.data.l[1] = XA_NET_WM_STATE_FULLSCREEN;
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XSendEvent(dpy, DefaultRootWindow(dpy), False,
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SubstructureRedirectMask | SubstructureNotifyMask,
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&xev);
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}
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/* Try to be nice to tiling WMs if possible. */
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void x11_move_window(Display *dpy, Window win, int x, int y,
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unsigned width, unsigned height)
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{
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XEvent xev = {0};
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XA_INIT(_NET_MOVERESIZE_WINDOW);
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xev.xclient.type = ClientMessage;
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xev.xclient.send_event = True;
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xev.xclient.message_type = XA_NET_MOVERESIZE_WINDOW;
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xev.xclient.window = win;
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xev.xclient.format = 32;
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xev.xclient.data.l[0] = (1 << MOVERESIZE_X_SHIFT) | (1 << MOVERESIZE_Y_SHIFT);
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xev.xclient.data.l[1] = x;
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xev.xclient.data.l[2] = y;
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XSendEvent(dpy, DefaultRootWindow(dpy), False,
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SubstructureRedirectMask | SubstructureNotifyMask,
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&xev);
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}
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static void x11_set_window_class(Display *dpy, Window win)
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{
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XClassHint hint = {0};
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hint.res_name = (char*)"retroarch"; /* Broken header. */
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hint.res_class = (char*)"retroarch";
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XSetClassHint(dpy, win, &hint);
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}
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void x11_set_window_attr(Display *dpy, Window win)
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{
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x11_set_window_class(dpy, win);
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}
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void x11_suspend_screensaver(Window wnd)
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{
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int ret;
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char cmd[64] = {0};
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RARCH_LOG("Suspending screensaver (X11).\n");
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snprintf(cmd, sizeof(cmd), "xdg-screensaver suspend %d", (int)wnd);
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ret = system(cmd);
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if (ret == -1)
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RARCH_WARN("Failed to launch xdg-screensaver.\n");
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else if (WEXITSTATUS(ret))
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RARCH_WARN("Could not suspend screen saver.\n");
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}
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static bool get_video_mode(Display *dpy, unsigned width, unsigned height,
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XF86VidModeModeInfo *mode, XF86VidModeModeInfo *desktop_mode)
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{
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float refresh_mod;
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int i, num_modes = 0;
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bool ret = false;
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float minimum_fps_diff = 0.0f;
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XF86VidModeModeInfo **modes = NULL;
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settings_t *settings = config_get_ptr();
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XF86VidModeGetAllModeLines(dpy, DefaultScreen(dpy), &num_modes, &modes);
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if (!num_modes)
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{
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XFree(modes);
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return false;
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}
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*desktop_mode = *modes[0];
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/* If we use black frame insertion, we fake a 60 Hz monitor
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* for 120 Hz one, etc, so try to match that. */
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refresh_mod = settings->video.black_frame_insertion ? 0.5f : 1.0f;
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for (i = 0; i < num_modes; i++)
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{
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float refresh, diff;
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const XF86VidModeModeInfo *m = modes[i];
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if (!m)
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continue;
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if (m->hdisplay != width)
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continue;
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if (m->vdisplay != height)
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continue;
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refresh = refresh_mod * m->dotclock * 1000.0f / (m->htotal * m->vtotal);
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diff = fabsf(refresh - settings->video.refresh_rate);
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if (!ret || diff < minimum_fps_diff)
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{
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*mode = *m;
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minimum_fps_diff = diff;
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}
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ret = true;
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}
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XFree(modes);
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return ret;
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}
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bool x11_enter_fullscreen(Display *dpy, unsigned width,
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unsigned height, XF86VidModeModeInfo *desktop_mode)
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{
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XF86VidModeModeInfo mode;
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if (!get_video_mode(dpy, width, height, &mode, desktop_mode))
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return false;
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if (!XF86VidModeSwitchToMode(dpy, DefaultScreen(dpy), &mode))
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return false;
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XF86VidModeSetViewPort(dpy, DefaultScreen(dpy), 0, 0);
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return true;
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}
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void x11_exit_fullscreen(Display *dpy, XF86VidModeModeInfo *desktop_mode)
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{
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XF86VidModeSwitchToMode(dpy, DefaultScreen(dpy), desktop_mode);
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XF86VidModeSetViewPort(dpy, DefaultScreen(dpy), 0, 0);
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}
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#ifdef HAVE_XINERAMA
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static XineramaScreenInfo *x11_query_screens(Display *dpy, int *num_screens)
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{
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int major, minor;
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if (!XineramaQueryExtension(dpy, &major, &minor))
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return NULL;
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XineramaQueryVersion(dpy, &major, &minor);
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RARCH_LOG("[X11]: Xinerama version: %d.%d.\n", major, minor);
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if (!XineramaIsActive(dpy))
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return NULL;
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return XineramaQueryScreens(dpy, num_screens);
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}
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bool x11_get_xinerama_coord(Display *dpy, int screen,
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int *x, int *y, unsigned *w, unsigned *h)
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{
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int i, num_screens = 0;
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bool ret = false;
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XineramaScreenInfo *info = x11_query_screens(dpy, &num_screens);
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RARCH_LOG("[X11]: Xinerama screens: %d.\n", num_screens);
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for (i = 0; i < num_screens; i++)
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{
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if (info[i].screen_number != screen)
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continue;
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*x = info[i].x_org;
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*y = info[i].y_org;
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*w = info[i].width;
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*h = info[i].height;
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ret = true;
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break;
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}
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XFree(info);
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return ret;
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}
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unsigned x11_get_xinerama_monitor(Display *dpy, int x, int y,
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int w, int h)
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{
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int i, num_screens = 0;
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unsigned monitor = 0;
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int largest_area = 0;
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XineramaScreenInfo *info = x11_query_screens(dpy, &num_screens);
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RARCH_LOG("[X11]: Xinerama screens: %d.\n", num_screens);
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for (i = 0; i < num_screens; i++)
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{
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int area;
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int max_lx = max(x, info[i].x_org);
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int min_rx = min(x + w, info[i].x_org + info[i].width);
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int max_ty = max(y, info[i].y_org);
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int min_by = min(y + h, info[i].y_org + info[i].height);
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int len_x = min_rx - max_lx;
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int len_y = min_by - max_ty;
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/* The whole window is outside the screen. */
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if (len_x < 0 || len_y < 0)
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continue;
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area = len_x * len_y;
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if (area > largest_area)
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{
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monitor = i;
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largest_area = area;
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}
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}
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XFree(info);
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return monitor;
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}
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#endif
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bool x11_create_input_context(Display *dpy, Window win, XIM *xim, XIC *xic)
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{
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*xim = XOpenIM(dpy, NULL, NULL, NULL);
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if (!*xim)
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{
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RARCH_ERR("[X11]: Failed to open input method.\n");
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return false;
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}
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*xic = XCreateIC(*xim, XNInputStyle,
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XIMPreeditNothing | XIMStatusNothing, XNClientWindow, win, NULL);
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if (!*xic)
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{
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RARCH_ERR("[X11]: Failed to create input context.\n");
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return false;
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}
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XSetICFocus(*xic);
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return true;
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}
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void x11_destroy_input_context(XIM *xim, XIC *xic)
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{
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if (*xic)
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{
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XDestroyIC(*xic);
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*xic = NULL;
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}
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if (*xim)
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{
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XCloseIM(*xim);
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*xim = NULL;
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}
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}
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bool x11_get_metrics(void *data,
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enum display_metric_types type, float *value)
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{
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int pixels_x, pixels_y, physical_width, physical_height;
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unsigned screen_no = 0;
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Display *dpy = (Display*)XOpenDisplay(NULL);
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pixels_x = DisplayWidth(dpy, screen_no);
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pixels_y = DisplayHeight(dpy, screen_no);
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physical_width = DisplayWidthMM(dpy, screen_no);
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physical_height = DisplayHeightMM(dpy, screen_no);
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(void)pixels_y;
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XCloseDisplay(dpy);
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switch (type)
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{
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case DISPLAY_METRIC_MM_WIDTH:
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*value = (float)physical_width;
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break;
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case DISPLAY_METRIC_MM_HEIGHT:
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*value = (float)physical_height;
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break;
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case DISPLAY_METRIC_DPI:
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*value = ((((float)pixels_x) * 25.4) / ((float)physical_width));
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break;
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case DISPLAY_METRIC_NONE:
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default:
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*value = 0;
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return false;
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}
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return true;
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}
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