mirror of
https://github.com/CTCaer/RetroArch.git
synced 2025-01-01 07:38:38 +00:00
389 lines
9.8 KiB
C
389 lines
9.8 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2014 - 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 "x11_common.h"
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#include <stdlib.h>
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#include <string.h>
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#include <X11/Xatom.h>
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#include "../image.h"
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#include "../../general.h"
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#include "../../input/input_common.h"
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#include "../../input/keyboard_line.h"
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static void x11_hide_mouse(Display *dpy, Window win)
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{
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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;
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static char bm_no_data[] = {0, 0, 0, 0, 0, 0, 0, 0};
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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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XA_INIT(_NET_WM_STATE);
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XA_INIT(_NET_WM_STATE_FULLSCREEN);
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XEvent xev = {0};
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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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XA_INIT(_NET_MOVERESIZE_WINDOW);
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XEvent xev = {0};
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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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char cmd[64];
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snprintf(cmd, sizeof(cmd), "xdg-screensaver suspend %d", (int)wnd);
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int ret = system(cmd);
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if (ret != 0)
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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, XF86VidModeModeInfo *mode, XF86VidModeModeInfo *desktop_mode)
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{
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int i;
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int num_modes = 0;
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XF86VidModeModeInfo **modes = NULL;
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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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bool ret = false;
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for (i = 0; i < num_modes; i++)
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{
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if (modes[i]->hdisplay == width && modes[i]->vdisplay == height)
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{
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*mode = *modes[i];
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ret = true;
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break;
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}
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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, 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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{
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if (XF86VidModeSwitchToMode(dpy, DefaultScreen(dpy), &mode))
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{
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XF86VidModeSetViewPort(dpy, DefaultScreen(dpy), 0, 0);
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return true;
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}
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else
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return false;
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}
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else
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return false;
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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;
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bool ret = false;
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int num_screens = 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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if (info[i].screen_number == screen)
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{
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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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}
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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;
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unsigned monitor = 0;
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int largest_area = 0;
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int num_screens = 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 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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if (len_x < 0 || len_y < 0) // The whole window is outside the screen.
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continue;
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int 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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static inline unsigned leading_ones(uint8_t c)
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{
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unsigned ones = 0;
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while (c & 0x80)
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{
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ones++;
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c <<= 1;
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}
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return ones;
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}
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// Simple implementation. Assumes the sequence is properly synchronized and terminated.
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static size_t conv_utf8_utf32(uint32_t *out, size_t out_chars, const char *in, size_t in_size)
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{
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unsigned i;
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size_t ret = 0;
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while (in_size && out_chars)
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{
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uint8_t first = *in++;
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unsigned ones = leading_ones(first);
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if (ones > 6 || ones == 1) // Invalid or desync
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break;
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unsigned extra = ones ? ones - 1 : ones;
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if (1 + extra > in_size) // Overflow
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break;
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unsigned shift = (extra - 1) * 6;
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uint32_t c = (first & ((1 << (7 - ones)) - 1)) << (6 * extra);
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for (i = 0; i < extra; i++, in++, shift -= 6)
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c |= (*in & 0x3f) << shift;
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*out++ = c;
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in_size -= 1 + extra;
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out_chars--;
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ret++;
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}
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return ret;
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}
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void x11_handle_key_event(XEvent *event, XIC ic, bool filter)
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{
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int i;
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char keybuf[32] = {0};
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uint32_t chars[32] = {0};
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bool down = event->type == KeyPress;
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unsigned key = input_translate_keysym_to_rk(XLookupKeysym(&event->xkey, 0));
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int num = 0;
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if (down && !filter)
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{
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KeySym keysym = 0;
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#ifdef X_HAVE_UTF8_STRING
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Status status = 0;
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// XwcLookupString doesn't seem to work.
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num = Xutf8LookupString(ic, &event->xkey, keybuf, ARRAY_SIZE(keybuf), &keysym, &status);
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// libc functions need UTF-8 locale to work properly, which makes mbrtowc a bit impractical.
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// Use custom utf8 -> UTF-32 conversion.
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num = conv_utf8_utf32(chars, ARRAY_SIZE(chars), keybuf, num);
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#else
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(void)ic;
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num = XLookupString(&event->xkey, keybuf, sizeof(keybuf), &keysym, NULL); // ASCII only.
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for (i = 0; i < num; i++)
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chars[i] = keybuf[i] & 0x7f;
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#endif
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}
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unsigned state = event->xkey.state;
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uint16_t mod = 0;
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mod |= (state & ShiftMask) ? RETROKMOD_SHIFT : 0;
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mod |= (state & LockMask) ? RETROKMOD_CAPSLOCK : 0;
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mod |= (state & ControlMask) ? RETROKMOD_CTRL : 0;
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mod |= (state & Mod1Mask) ? RETROKMOD_ALT : 0;
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mod |= (state & Mod4Mask) ? RETROKMOD_META : 0;
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input_keyboard_event(down, key, chars[0], mod);
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for (i = 1; i < num; i++)
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input_keyboard_event(down, RETROK_UNKNOWN, chars[i], mod);
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}
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