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mpv/video/out/x11_common.c

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/*
* This file is part of mpv.
*
* mpv 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 Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* mpv 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 mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <inttypes.h>
#include <limits.h>
#include <unistd.h>
#include <poll.h>
#include <string.h>
#include <assert.h>
#include <X11/Xmd.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include <X11/keysym.h>
#include <X11/XKBlib.h>
#include <X11/XF86keysym.h>
#include <X11/extensions/scrnsaver.h>
#include <X11/extensions/dpms.h>
#include <X11/extensions/Xinerama.h>
#include <X11/extensions/Xrandr.h>
#include "config.h"
#include "misc/bstr.h"
#include "options/options.h"
#include "options/m_config.h"
#include "common/common.h"
#include "common/msg.h"
#include "input/input.h"
#include "input/event.h"
#include "video/image_loader.h"
#include "video/mp_image.h"
#include "x11_common.h"
#include "mpv_talloc.h"
#include "vo.h"
#include "win_state.h"
#include "osdep/io.h"
#include "osdep/timer.h"
#include "osdep/subprocess.h"
#include "input/input.h"
#include "input/keycodes.h"
#define vo_wm_LAYER 1
#define vo_wm_FULLSCREEN 2
#define vo_wm_STAYS_ON_TOP 4
#define vo_wm_ABOVE 8
#define vo_wm_BELOW 16
/* EWMH state actions, see
http://freedesktop.org/Standards/wm-spec/index.html#id2768769 */
#define NET_WM_STATE_REMOVE 0 /* remove/unset property */
#define NET_WM_STATE_ADD 1 /* add/set property */
#define NET_WM_STATE_TOGGLE 2 /* toggle property */
#define WIN_LAYER_ONBOTTOM 2
#define WIN_LAYER_NORMAL 4
#define WIN_LAYER_ONTOP 6
#define WIN_LAYER_ABOVE_DOCK 10
#define DND_VERSION 5
#define XEMBED_VERSION 0
#define XEMBED_MAPPED (1 << 0)
#define XEMBED_EMBEDDED_NOTIFY 0
#define XEMBED_REQUEST_FOCUS 3
// ----- Motif header: -------
#define MWM_HINTS_FUNCTIONS (1L << 0)
#define MWM_HINTS_DECORATIONS (1L << 1)
#define MWM_FUNC_RESIZE (1L << 1)
#define MWM_FUNC_MOVE (1L << 2)
#define MWM_FUNC_MINIMIZE (1L << 3)
#define MWM_FUNC_MAXIMIZE (1L << 4)
#define MWM_FUNC_CLOSE (1L << 5)
#define MWM_DECOR_ALL (1L << 0)
typedef struct
{
long flags;
long functions;
long decorations;
long input_mode;
long state;
} MotifWmHints;
static const char x11_icon_16[] =
#include "video/out/x11_icon_16.inc"
;
static const char x11_icon_32[] =
#include "video/out/x11_icon_32.inc"
;
static const char x11_icon_64[] =
#include "video/out/x11_icon_64.inc"
;
static const char x11_icon_128[] =
#include "video/out/x11_icon_128.inc"
;
#define ICON_ENTRY(var) { (char *)var, sizeof(var) }
static const struct bstr x11_icons[] = {
ICON_ENTRY(x11_icon_16),
ICON_ENTRY(x11_icon_32),
ICON_ENTRY(x11_icon_64),
ICON_ENTRY(x11_icon_128),
{0}
};
static struct mp_log *x11_error_output;
static atomic_int x11_error_silence;
static void vo_x11_update_geometry(struct vo *vo);
static void vo_x11_fullscreen(struct vo *vo);
static void xscreensaver_heartbeat(struct vo_x11_state *x11);
static void set_screensaver(struct vo_x11_state *x11, bool enabled);
static void vo_x11_selectinput_witherr(struct vo *vo, Display *display,
Window w, long event_mask);
static void vo_x11_setlayer(struct vo *vo, bool ontop);
static void vo_x11_xembed_handle_message(struct vo *vo, XClientMessageEvent *ce);
static void vo_x11_xembed_send_message(struct vo_x11_state *x11, long m[4]);
static void vo_x11_move_resize(struct vo *vo, bool move, bool resize,
struct mp_rect rc);
static void vo_x11_maximize(struct vo *vo);
static void vo_x11_minimize(struct vo *vo);
#define XA(x11, s) (XInternAtom((x11)->display, # s, False))
#define XAs(x11, s) XInternAtom((x11)->display, s, False)
#define RC_W(rc) ((rc).x1 - (rc).x0)
#define RC_H(rc) ((rc).y1 - (rc).y0)
static char *x11_atom_name_buf(struct vo_x11_state *x11, Atom atom,
char *buf, size_t buf_size)
{
buf[0] = '\0';
char *new_name = XGetAtomName(x11->display, atom);
if (new_name) {
snprintf(buf, buf_size, "%s", new_name);
XFree(new_name);
}
return buf;
}
#define x11_atom_name(x11, atom) x11_atom_name_buf(x11, atom, (char[80]){0}, 80)
// format = 8 (unsigned char), 16 (short), 32 (long, even on LP64 systems)
// *out_nitems = returned number of items of requested format
static void *x11_get_property(struct vo_x11_state *x11, Window w, Atom property,
Atom type, int format, int *out_nitems)
{
assert(format == 8 || format == 16 || format == 32);
*out_nitems = 0;
if (!w)
return NULL;
long max_len = 128 * 1024 * 1024; // static maximum limit
Atom ret_type = 0;
int ret_format = 0;
unsigned long ret_nitems = 0;
unsigned long ret_bytesleft = 0;
unsigned char *ret_prop = NULL;
if (XGetWindowProperty(x11->display, w, property, 0, max_len, False, type,
&ret_type, &ret_format, &ret_nitems, &ret_bytesleft,
&ret_prop) != Success)
return NULL;
if (ret_format != format || ret_nitems < 1 || ret_bytesleft) {
XFree(ret_prop);
ret_prop = NULL;
ret_nitems = 0;
}
*out_nitems = ret_nitems;
return ret_prop;
}
static bool x11_get_property_copy(struct vo_x11_state *x11, Window w,
Atom property, Atom type, int format,
void *dst, size_t dst_size)
{
bool ret = false;
int len;
void *ptr = x11_get_property(x11, w, property, type, format, &len);
if (ptr) {
size_t ib = format == 32 ? sizeof(long) : format / 8;
if (dst_size <= len * ib) {
memcpy(dst, ptr, dst_size);
ret = true;
}
XFree(ptr);
}
return ret;
}
static void x11_send_ewmh_msg(struct vo_x11_state *x11, char *message_type,
long params[5])
{
if (!x11->window)
return;
XEvent xev = {
.xclient = {
.type = ClientMessage,
.send_event = True,
.message_type = XInternAtom(x11->display, message_type, False),
.window = x11->window,
.format = 32,
},
};
for (int n = 0; n < 5; n++)
xev.xclient.data.l[n] = params[n];
if (!XSendEvent(x11->display, x11->rootwin, False,
SubstructureRedirectMask | SubstructureNotifyMask,
&xev))
MP_ERR(x11, "Couldn't send EWMH %s message!\n", message_type);
}
// change the _NET_WM_STATE hint. Remove or add the state according to "set".
static void x11_set_ewmh_state(struct vo_x11_state *x11, char *state, bool set)
{
long params[5] = {
set ? NET_WM_STATE_ADD : NET_WM_STATE_REMOVE,
XInternAtom(x11->display, state, False),
0, // No second state
1, // source indication: normal
};
x11_send_ewmh_msg(x11, "_NET_WM_STATE", params);
}
static void vo_update_cursor(struct vo *vo)
{
Cursor no_ptr;
Pixmap bm_no;
XColor black, dummy;
Colormap colormap;
const char bm_no_data[] = {0, 0, 0, 0, 0, 0, 0, 0};
struct vo_x11_state *x11 = vo->x11;
Display *disp = x11->display;
Window win = x11->window;
bool should_hide = x11->has_focus && !x11->mouse_cursor_visible;
if (should_hide == x11->mouse_cursor_set)
return;
x11->mouse_cursor_set = should_hide;
if (x11->parent == x11->rootwin || !win)
return; // do not hide if playing on the root window
if (x11->mouse_cursor_set) {
colormap = DefaultColormap(disp, DefaultScreen(disp));
if (!XAllocNamedColor(disp, colormap, "black", &black, &dummy))
return; // color alloc failed, give up
bm_no = XCreateBitmapFromData(disp, win, bm_no_data, 8, 8);
no_ptr = XCreatePixmapCursor(disp, bm_no, bm_no, &black, &black, 0, 0);
XDefineCursor(disp, win, no_ptr);
XFreeCursor(disp, no_ptr);
if (bm_no != None)
XFreePixmap(disp, bm_no);
XFreeColors(disp, colormap, &black.pixel, 1, 0);
} else {
XDefineCursor(x11->display, x11->window, 0);
}
}
static int x11_errorhandler(Display *display, XErrorEvent *event)
{
struct mp_log *log = x11_error_output;
if (!log)
return 0;
char msg[60];
XGetErrorText(display, event->error_code, (char *) &msg, sizeof(msg));
int lev = atomic_load(&x11_error_silence) ? MSGL_V : MSGL_ERR;
mp_msg(log, lev, "X11 error: %s\n", msg);
mp_msg(log, lev, "Type: %x, display: %p, resourceid: %lx, serial: %lx\n",
event->type, event->display, event->resourceid, event->serial);
mp_msg(log, lev, "Error code: %x, request code: %x, minor code: %x\n",
event->error_code, event->request_code, event->minor_code);
return 0;
}
void vo_x11_silence_xlib(int dir)
{
atomic_fetch_add(&x11_error_silence, dir);
}
static int net_wm_support_state_test(struct vo_x11_state *x11, Atom atom)
{
#define NET_WM_STATE_TEST(x) { \
if (atom == XA(x11, _NET_WM_STATE_##x)) { \
MP_DBG(x11, "Detected wm supports " #x " state.\n" ); \
return vo_wm_##x; \
} \
}
NET_WM_STATE_TEST(FULLSCREEN);
NET_WM_STATE_TEST(ABOVE);
NET_WM_STATE_TEST(STAYS_ON_TOP);
NET_WM_STATE_TEST(BELOW);
return 0;
}
static int vo_wm_detect(struct vo *vo)
{
struct vo_x11_state *x11 = vo->x11;
int i;
int wm = 0;
int nitems;
Atom *args = NULL;
Window win = x11->rootwin;
if (x11->parent)
return 0;
// -- supports layers
args = x11_get_property(x11, win, XA(x11, _WIN_PROTOCOLS), XA_ATOM, 32,
&nitems);
if (args) {
for (i = 0; i < nitems; i++) {
if (args[i] == XA(x11, _WIN_LAYER)) {
MP_DBG(x11, "Detected wm supports layers.\n");
wm |= vo_wm_LAYER;
}
}
XFree(args);
}
// --- netwm
args = x11_get_property(x11, win, XA(x11, _NET_SUPPORTED), XA_ATOM, 32,
&nitems);
if (args) {
MP_DBG(x11, "Detected wm supports NetWM.\n");
if (x11->opts->x11_netwm >= 0) {
for (i = 0; i < nitems; i++)
wm |= net_wm_support_state_test(vo->x11, args[i]);
} else {
MP_DBG(x11, "NetWM usage disabled by user.\n");
}
XFree(args);
}
if (wm == 0)
MP_DBG(x11, "Unknown wm type...\n");
if (x11->opts->x11_netwm > 0 && !(wm & vo_wm_FULLSCREEN)) {
MP_WARN(x11, "Forcing NetWM FULLSCREEN support.\n");
wm |= vo_wm_FULLSCREEN;
}
return wm;
}
static void xrandr_read(struct vo_x11_state *x11)
{
for(int i = 0; i < x11->num_displays; i++)
talloc_free(x11->displays[i].name);
x11->num_displays = 0;
if (x11->xrandr_event < 0) {
int event_base, error_base;
if (!XRRQueryExtension(x11->display, &event_base, &error_base)) {
MP_VERBOSE(x11, "Couldn't init Xrandr.\n");
return;
}
x11->xrandr_event = event_base + RRNotify;
XRRSelectInput(x11->display, x11->rootwin, RRScreenChangeNotifyMask |
RRCrtcChangeNotifyMask | RROutputChangeNotifyMask);
}
XRRScreenResources *r = XRRGetScreenResourcesCurrent(x11->display, x11->rootwin);
if (!r) {
MP_VERBOSE(x11, "Xrandr doesn't work.\n");
return;
}
int primary_id = -1;
RROutput primary = XRRGetOutputPrimary(x11->display, x11->rootwin);
for (int o = 0; o < r->noutput; o++) {
RROutput output = r->outputs[o];
XRRCrtcInfo *crtc = NULL;
XRROutputInfo *out = XRRGetOutputInfo(x11->display, r, output);
if (!out || !out->crtc)
goto next;
crtc = XRRGetCrtcInfo(x11->display, r, out->crtc);
if (!crtc)
goto next;
for (int om = 0; om < out->nmode; om++) {
RRMode xm = out->modes[om];
for (int n = 0; n < r->nmode; n++) {
XRRModeInfo m = r->modes[n];
if (m.id != xm || crtc->mode != xm)
continue;
if (x11->num_displays >= MAX_DISPLAYS)
continue;
double vTotal = m.vTotal;
if (m.modeFlags & RR_DoubleScan)
vTotal *= 2;
if (m.modeFlags & RR_Interlace)
vTotal /= 2;
struct xrandr_display d = {
.rc = { crtc->x, crtc->y,
crtc->x + crtc->width, crtc->y + crtc->height },
.fps = m.dotClock / (m.hTotal * vTotal),
.name = talloc_strdup(x11, out->name),
};
int num = x11->num_displays++;
MP_VERBOSE(x11, "Display %d (%s): [%d, %d, %d, %d] @ %f FPS\n",
num, d.name, d.rc.x0, d.rc.y0, d.rc.x1, d.rc.y1, d.fps);
x11->displays[num] = d;
if (output == primary)
primary_id = num;
}
}
next:
if (crtc)
XRRFreeCrtcInfo(crtc);
if (out)
XRRFreeOutputInfo(out);
}
for (int i = 0; i < x11->num_displays; i++) {
struct xrandr_display *d = &(x11->displays[i]);
if (i == primary_id) {
d->atom_id = 0;
continue;
}
if (primary_id > 0 && i < primary_id) {
d->atom_id = i+1;
continue;
}
d->atom_id = i;
}
XRRFreeScreenResources(r);
}
static void vo_x11_update_screeninfo(struct vo *vo)
{
struct vo_x11_state *x11 = vo->x11;
struct mp_vo_opts *opts = x11->opts;
bool all_screens = opts->fullscreen && opts->fsscreen_id == -2;
x11->screenrc = (struct mp_rect){.x1 = x11->ws_width, .y1 = x11->ws_height};
if (opts->screen_id >= -1 && XineramaIsActive(x11->display) && !all_screens)
{
int screen = opts->fullscreen ? opts->fsscreen_id : opts->screen_id;
XineramaScreenInfo *screens;
int num_screens;
screens = XineramaQueryScreens(x11->display, &num_screens);
if (screen >= num_screens)
screen = num_screens - 1;
if (screen == -1) {
int x = x11->winrc.x0 + RC_W(x11->winrc) / 2;
int y = x11->winrc.y0 + RC_H(x11->winrc) / 2;
for (screen = num_screens - 1; screen > 0; screen--) {
int left = screens[screen].x_org;
int right = left + screens[screen].width;
int top = screens[screen].y_org;
int bottom = top + screens[screen].height;
if (left <= x && x <= right && top <= y && y <= bottom)
break;
}
}
if (screen < 0)
screen = 0;
x11->screenrc = (struct mp_rect){
.x0 = screens[screen].x_org,
.y0 = screens[screen].y_org,
.x1 = screens[screen].x_org + screens[screen].width,
.y1 = screens[screen].y_org + screens[screen].height,
};
XFree(screens);
}
}
// Get the monitors for the 4 edges of the rectangle spanning all screens.
static void vo_x11_get_bounding_monitors(struct vo_x11_state *x11, long b[4])
{
//top bottom left right
b[0] = b[1] = b[2] = b[3] = 0;
int num_screens = 0;
XineramaScreenInfo *screens = XineramaQueryScreens(x11->display, &num_screens);
if (!screens)
return;
for (int n = 0; n < num_screens; n++) {
XineramaScreenInfo *s = &screens[n];
if (s->y_org < screens[b[0]].y_org)
b[0] = n;
if (s->y_org + s->height > screens[b[1]].y_org + screens[b[1]].height)
b[1] = n;
if (s->x_org < screens[b[2]].x_org)
b[2] = n;
if (s->x_org + s->width > screens[b[3]].x_org + screens[b[3]].width)
b[3] = n;
}
XFree(screens);
}
static void *screensaver_thread(void *arg)
{
struct vo_x11_state *x11 = arg;
for (;;) {
sem_wait(&x11->screensaver_sem);
// don't queue multiple wakeups
while (!sem_trywait(&x11->screensaver_sem)) {}
if (atomic_load(&x11->screensaver_terminate))
break;
char *args[] = {"xdg-screensaver", "reset", NULL};
int status = mp_subprocess(args, NULL, NULL, mp_devnull, mp_devnull, &(char*){0});
if (status) {
MP_VERBOSE(x11, "Disabling screensaver failed (%d). Make sure the "
"xdg-screensaver script is installed.\n", status);
break;
}
}
return NULL;
}
int vo_x11_init(struct vo *vo)
{
char *dispName;
assert(!vo->x11);
XInitThreads();
struct vo_x11_state *x11 = talloc_ptrtype(NULL, x11);
*x11 = (struct vo_x11_state){
.log = mp_log_new(x11, vo->log, "x11"),
.input_ctx = vo->input_ctx,
.screensaver_enabled = true,
.xrandr_event = -1,
.wakeup_pipe = {-1, -1},
.dpi_scale = 1,
.opts_cache = m_config_cache_alloc(x11, vo->global, &vo_sub_opts),
};
x11->opts = x11->opts_cache->opts;
vo->x11 = x11;
sem_init(&x11->screensaver_sem, 0, 0);
if (pthread_create(&x11->screensaver_thread, NULL, screensaver_thread, x11)) {
sem_destroy(&x11->screensaver_sem);
goto error;
}
x11->screensaver_thread_running = true;
x11_error_output = x11->log;
XSetErrorHandler(x11_errorhandler);
dispName = XDisplayName(NULL);
MP_VERBOSE(x11, "X11 opening display: %s\n", dispName);
x11->display = XOpenDisplay(dispName);
if (!x11->display) {
MP_MSG(x11, vo->probing ? MSGL_V : MSGL_ERR,
"couldn't open the X11 display (%s)!\n", dispName);
goto error;
}
x11->screen = DefaultScreen(x11->display); // screen ID
x11->rootwin = RootWindow(x11->display, x11->screen); // root window ID
if (x11->opts->WinID >= 0)
x11->parent = x11->opts->WinID ? x11->opts->WinID : x11->rootwin;
if (!x11->opts->native_keyrepeat) {
Bool ok = False;
XkbSetDetectableAutoRepeat(x11->display, True, &ok);
x11->no_autorepeat = ok;
}
x11->xim = XOpenIM(x11->display, NULL, NULL, NULL);
if (!x11->xim)
MP_WARN(x11, "XOpenIM() failed. Unicode input will not work.\n");
x11->ws_width = DisplayWidth(x11->display, x11->screen);
x11->ws_height = DisplayHeight(x11->display, x11->screen);
if (strncmp(dispName, "unix:", 5) == 0)
dispName += 4;
else if (strncmp(dispName, "localhost:", 10) == 0)
dispName += 9;
x11->display_is_local = dispName[0] == ':' &&
strtoul(dispName + 1, NULL, 10) < 10;
MP_DBG(x11, "X11 running at %dx%d (\"%s\" => %s display)\n",
x11->ws_width, x11->ws_height, dispName,
x11->display_is_local ? "local" : "remote");
int w_mm = DisplayWidthMM(x11->display, x11->screen);
int h_mm = DisplayHeightMM(x11->display, x11->screen);
double dpi_x = x11->ws_width * 25.4 / w_mm;
double dpi_y = x11->ws_height * 25.4 / h_mm;
double base_dpi = 96;
if (isfinite(dpi_x) && isfinite(dpi_y) && x11->opts->hidpi_window_scale) {
int s_x = lrint(MPCLAMP(dpi_x / base_dpi, 0, 10));
int s_y = lrint(MPCLAMP(dpi_y / base_dpi, 0, 10));
if (s_x == s_y && s_x > 1 && s_x < 10) {
x11->dpi_scale = s_x;
MP_VERBOSE(x11, "Assuming DPI scale %d for prescaling. This can "
"be disabled with --hidpi-window-scale=no.\n",
x11->dpi_scale);
}
}
x11->wm_type = vo_wm_detect(vo);
x11->event_fd = ConnectionNumber(x11->display);
mp_make_wakeup_pipe(x11->wakeup_pipe);
xrandr_read(x11);
vo_x11_update_geometry(vo);
return 1;
error:
vo_x11_uninit(vo);
return 0;
}
static const struct mp_keymap keymap[] = {
// special keys
{XK_Pause, MP_KEY_PAUSE}, {XK_Escape, MP_KEY_ESC},
{XK_BackSpace, MP_KEY_BS}, {XK_Tab, MP_KEY_TAB}, {XK_Return, MP_KEY_ENTER},
{XK_Menu, MP_KEY_MENU}, {XK_Print, MP_KEY_PRINT},
{XK_Cancel, MP_KEY_CANCEL}, {XK_ISO_Left_Tab, MP_KEY_TAB},
// cursor keys
{XK_Left, MP_KEY_LEFT}, {XK_Right, MP_KEY_RIGHT}, {XK_Up, MP_KEY_UP},
{XK_Down, MP_KEY_DOWN},
// navigation block
{XK_Insert, MP_KEY_INSERT}, {XK_Delete, MP_KEY_DELETE},
{XK_Home, MP_KEY_HOME}, {XK_End, MP_KEY_END}, {XK_Page_Up, MP_KEY_PAGE_UP},
{XK_Page_Down, MP_KEY_PAGE_DOWN},
// F-keys
{XK_F1, MP_KEY_F+1}, {XK_F2, MP_KEY_F+2}, {XK_F3, MP_KEY_F+3},
{XK_F4, MP_KEY_F+4}, {XK_F5, MP_KEY_F+5}, {XK_F6, MP_KEY_F+6},
{XK_F7, MP_KEY_F+7}, {XK_F8, MP_KEY_F+8}, {XK_F9, MP_KEY_F+9},
{XK_F10, MP_KEY_F+10}, {XK_F11, MP_KEY_F+11}, {XK_F12, MP_KEY_F+12},
// numpad independent of numlock
{XK_KP_Subtract, '-'}, {XK_KP_Add, '+'}, {XK_KP_Multiply, '*'},
{XK_KP_Divide, '/'}, {XK_KP_Enter, MP_KEY_KPENTER},
// numpad with numlock
{XK_KP_0, MP_KEY_KP0}, {XK_KP_1, MP_KEY_KP1}, {XK_KP_2, MP_KEY_KP2},
{XK_KP_3, MP_KEY_KP3}, {XK_KP_4, MP_KEY_KP4}, {XK_KP_5, MP_KEY_KP5},
{XK_KP_6, MP_KEY_KP6}, {XK_KP_7, MP_KEY_KP7}, {XK_KP_8, MP_KEY_KP8},
{XK_KP_9, MP_KEY_KP9}, {XK_KP_Decimal, MP_KEY_KPDEC},
{XK_KP_Separator, MP_KEY_KPDEC},
// numpad without numlock
{XK_KP_Insert, MP_KEY_KPINS}, {XK_KP_End, MP_KEY_KP1},
{XK_KP_Down, MP_KEY_KP2}, {XK_KP_Page_Down, MP_KEY_KP3},
{XK_KP_Left, MP_KEY_KP4}, {XK_KP_Begin, MP_KEY_KP5},
{XK_KP_Right, MP_KEY_KP6}, {XK_KP_Home, MP_KEY_KP7}, {XK_KP_Up, MP_KEY_KP8},
{XK_KP_Page_Up, MP_KEY_KP9}, {XK_KP_Delete, MP_KEY_KPDEL},
{XF86XK_MenuKB, MP_KEY_MENU},
{XF86XK_AudioPlay, MP_KEY_PLAY}, {XF86XK_AudioPause, MP_KEY_PAUSE},
{XF86XK_AudioStop, MP_KEY_STOP},
{XF86XK_AudioPrev, MP_KEY_PREV}, {XF86XK_AudioNext, MP_KEY_NEXT},
{XF86XK_AudioRewind, MP_KEY_REWIND}, {XF86XK_AudioForward, MP_KEY_FORWARD},
{XF86XK_AudioMute, MP_KEY_MUTE},
{XF86XK_AudioLowerVolume, MP_KEY_VOLUME_DOWN},
{XF86XK_AudioRaiseVolume, MP_KEY_VOLUME_UP},
{XF86XK_HomePage, MP_KEY_HOMEPAGE}, {XF86XK_WWW, MP_KEY_WWW},
{XF86XK_Mail, MP_KEY_MAIL}, {XF86XK_Favorites, MP_KEY_FAVORITES},
{XF86XK_Search, MP_KEY_SEARCH}, {XF86XK_Sleep, MP_KEY_SLEEP},
{0, 0}
};
static int vo_x11_lookupkey(int key)
{
const char *passthrough_keys = " -+*/<>`~!@#$%^&()_{}:;\"\',.?\\|=[]";
int mpkey = 0;
if ((key >= 'a' && key <= 'z') ||
(key >= 'A' && key <= 'Z') ||
(key >= '0' && key <= '9') ||
(key > 0 && key < 256 && strchr(passthrough_keys, key)))
mpkey = key;
if (!mpkey)
mpkey = lookup_keymap_table(keymap, key);
// XFree86 keysym range; typically contains obscure "extra" keys
if (!mpkey && key >= 0x10080001 && key <= 0x1008FFFF) {
mpkey = MP_KEY_UNKNOWN_RESERVED_START + (key - 0x10080000);
if (mpkey > MP_KEY_UNKNOWN_RESERVED_LAST)
mpkey = 0;
}
return mpkey;
}
static void vo_x11_decoration(struct vo *vo, bool d)
{
struct vo_x11_state *x11 = vo->x11;
if (x11->parent || !x11->window)
return;
Atom motif_hints = XA(x11, _MOTIF_WM_HINTS);
MotifWmHints mhints = {0};
bool got = x11_get_property_copy(x11, x11->window, motif_hints,
motif_hints, 32, &mhints, sizeof(mhints));
// hints weren't set, and decorations requested -> assume WM displays them
if (!got && d)
return;
if (!got) {
mhints.flags = MWM_HINTS_FUNCTIONS;
mhints.functions = MWM_FUNC_MOVE | MWM_FUNC_CLOSE | MWM_FUNC_MINIMIZE |
MWM_FUNC_MAXIMIZE | MWM_FUNC_RESIZE;
}
mhints.flags |= MWM_HINTS_DECORATIONS;
mhints.decorations = d ? MWM_DECOR_ALL : 0;
XChangeProperty(x11->display, x11->window, motif_hints, motif_hints, 32,
PropModeReplace, (unsigned char *) &mhints, 5);
}
static void vo_x11_classhint(struct vo *vo, Window window, const char *name)
{
struct vo_x11_state *x11 = vo->x11;
struct mp_vo_opts *opts = x11->opts;
XClassHint wmClass;
long pid = getpid();
wmClass.res_name = opts->winname ? opts->winname : (char *)name;
wmClass.res_class = "mpv";
XSetClassHint(x11->display, window, &wmClass);
XChangeProperty(x11->display, window, XA(x11, _NET_WM_PID), XA_CARDINAL,
32, PropModeReplace, (unsigned char *) &pid, 1);
}
void vo_x11_uninit(struct vo *vo)
{
struct vo_x11_state *x11 = vo->x11;
if (!x11)
return;
mp_input_put_key(x11->input_ctx, MP_INPUT_RELEASE_ALL);
set_screensaver(x11, true);
if (x11->window != None && x11->window != x11->rootwin) {
XUnmapWindow(x11->display, x11->window);
XDestroyWindow(x11->display, x11->window);
}
if (x11->xic)
XDestroyIC(x11->xic);
if (x11->colormap != None)
XFreeColormap(vo->x11->display, x11->colormap);
MP_DBG(x11, "uninit ...\n");
if (x11->xim)
XCloseIM(x11->xim);
if (x11->display) {
XSetErrorHandler(NULL);
x11_error_output = NULL;
XCloseDisplay(x11->display);
}
if (x11->screensaver_thread_running) {
atomic_store(&x11->screensaver_terminate, true);
sem_post(&x11->screensaver_sem);
pthread_join(x11->screensaver_thread, NULL);
sem_destroy(&x11->screensaver_sem);
}
if (x11->wakeup_pipe[0] >= 0) {
close(x11->wakeup_pipe[0]);
close(x11->wakeup_pipe[1]);
}
talloc_free(x11);
vo->x11 = NULL;
}
#define DND_PROPERTY "mpv_dnd_selection"
static void vo_x11_dnd_init_window(struct vo *vo)
{
struct vo_x11_state *x11 = vo->x11;
Atom version = DND_VERSION;
XChangeProperty(x11->display, x11->window, XA(x11, XdndAware), XA_ATOM,
32, PropModeReplace, (unsigned char *)&version, 1);
}
// The Atom does not always map to a mime type, but often.
static char *x11_dnd_mime_type_buf(struct vo_x11_state *x11, Atom atom,
char *buf, size_t buf_size)
{
if (atom == XInternAtom(x11->display, "UTF8_STRING", False))
return "text";
return x11_atom_name_buf(x11, atom, buf, buf_size);
}
#define x11_dnd_mime_type(x11, atom) \
x11_dnd_mime_type_buf(x11, atom, (char[80]){0}, 80)
static bool dnd_format_is_better(struct vo_x11_state *x11, Atom cur, Atom new)
{
int new_score = mp_event_get_mime_type_score(x11->input_ctx,
x11_dnd_mime_type(x11, new));
int cur_score = -1;
if (cur) {
cur_score = mp_event_get_mime_type_score(x11->input_ctx,
x11_dnd_mime_type(x11, cur));
}
return new_score >= 0 && new_score > cur_score;
}
static void dnd_select_format(struct vo_x11_state *x11, Atom *args, int items)
{
x11->dnd_requested_format = 0;
for (int n = 0; n < items; n++) {
MP_VERBOSE(x11, "DnD type: '%s'\n", x11_atom_name(x11, args[n]));
// There are other types; possibly not worth supporting.
if (dnd_format_is_better(x11, x11->dnd_requested_format, args[n]))
x11->dnd_requested_format = args[n];
}
MP_VERBOSE(x11, "Selected DnD type: %s\n", x11->dnd_requested_format ?
x11_atom_name(x11, x11->dnd_requested_format) : "(none)");
}
static void dnd_reset(struct vo *vo)
{
struct vo_x11_state *x11 = vo->x11;
x11->dnd_src_window = 0;
x11->dnd_requested_format = 0;
}
static void vo_x11_dnd_handle_message(struct vo *vo, XClientMessageEvent *ce)
{
struct vo_x11_state *x11 = vo->x11;
if (!x11->window)
return;
if (ce->message_type == XA(x11, XdndEnter)) {
x11->dnd_requested_format = 0;
Window src = ce->data.l[0];
if (ce->data.l[1] & 1) {
int nitems;
Atom *args = x11_get_property(x11, src, XA(x11, XdndTypeList),
XA_ATOM, 32, &nitems);
if (args) {
dnd_select_format(x11, args, nitems);
XFree(args);
}
} else {
Atom args[3];
for (int n = 2; n <= 4; n++)
args[n - 2] = ce->data.l[n];
dnd_select_format(x11, args, 3);
}
} else if (ce->message_type == XA(x11, XdndPosition)) {
x11->dnd_requested_action = ce->data.l[4];
Window src = ce->data.l[0];
XEvent xev;
xev.xclient.type = ClientMessage;
xev.xclient.serial = 0;
xev.xclient.send_event = True;
xev.xclient.message_type = XA(x11, XdndStatus);
xev.xclient.window = src;
xev.xclient.format = 32;
xev.xclient.data.l[0] = x11->window;
xev.xclient.data.l[1] = x11->dnd_requested_format ? 1 : 0;
xev.xclient.data.l[2] = 0;
xev.xclient.data.l[3] = 0;
xev.xclient.data.l[4] = XA(x11, XdndActionCopy);
XSendEvent(x11->display, src, False, 0, &xev);
} else if (ce->message_type == XA(x11, XdndDrop)) {
x11->dnd_src_window = ce->data.l[0];
XConvertSelection(x11->display, XA(x11, XdndSelection),
x11->dnd_requested_format, XAs(x11, DND_PROPERTY),
x11->window, ce->data.l[2]);
} else if (ce->message_type == XA(x11, XdndLeave)) {
dnd_reset(vo);
}
}
static void vo_x11_dnd_handle_selection(struct vo *vo, XSelectionEvent *se)
{
struct vo_x11_state *x11 = vo->x11;
if (!x11->window || !x11->dnd_src_window)
return;
bool success = false;
if (se->selection == XA(x11, XdndSelection) &&
se->property == XAs(x11, DND_PROPERTY) &&
se->target == x11->dnd_requested_format)
{
int nitems;
void *prop = x11_get_property(x11, x11->window, XAs(x11, DND_PROPERTY),
x11->dnd_requested_format, 8, &nitems);
if (prop) {
enum mp_dnd_action action =
x11->dnd_requested_action == XA(x11, XdndActionCopy) ?
DND_REPLACE : DND_APPEND;
char *mime_type = x11_dnd_mime_type(x11, x11->dnd_requested_format);
MP_VERBOSE(x11, "Dropping type: %s (%s)\n",
x11_atom_name(x11, x11->dnd_requested_format), mime_type);
// No idea if this is guaranteed to be \0-padded, so use bstr.
success = mp_event_drop_mime_data(x11->input_ctx, mime_type,
(bstr){prop, nitems}, action) > 0;
XFree(prop);
}
}
XEvent xev;
xev.xclient.type = ClientMessage;
xev.xclient.serial = 0;
xev.xclient.send_event = True;
xev.xclient.message_type = XA(x11, XdndFinished);
xev.xclient.window = x11->dnd_src_window;
xev.xclient.format = 32;
xev.xclient.data.l[0] = x11->window;
xev.xclient.data.l[1] = success ? 1 : 0;
xev.xclient.data.l[2] = success ? XA(x11, XdndActionCopy) : 0;
xev.xclient.data.l[3] = 0;
xev.xclient.data.l[4] = 0;
XSendEvent(x11->display, x11->dnd_src_window, False, 0, &xev);
dnd_reset(vo);
}
static void update_vo_size(struct vo *vo)
{
struct vo_x11_state *x11 = vo->x11;
if (RC_W(x11->winrc) != vo->dwidth || RC_H(x11->winrc) != vo->dheight) {
vo->dwidth = RC_W(x11->winrc);
vo->dheight = RC_H(x11->winrc);
x11->pending_vo_events |= VO_EVENT_RESIZE;
}
}
static int get_mods(unsigned int state)
{
int modifiers = 0;
if (state & ShiftMask)
modifiers |= MP_KEY_MODIFIER_SHIFT;
if (state & ControlMask)
modifiers |= MP_KEY_MODIFIER_CTRL;
if (state & Mod1Mask)
modifiers |= MP_KEY_MODIFIER_ALT;
if (state & Mod4Mask)
modifiers |= MP_KEY_MODIFIER_META;
return modifiers;
}
static void vo_x11_update_composition_hint(struct vo *vo)
{
struct vo_x11_state *x11 = vo->x11;
long hint = 0;
switch (x11->opts->x11_bypass_compositor) {
case 0: hint = 0; break; // leave default
case 1: hint = 1; break; // always bypass
case 2: hint = x11->fs ? 1 : 0; break; // bypass in FS
case 3: hint = 2; break; // always enable
}
XChangeProperty(x11->display, x11->window, XA(x11,_NET_WM_BYPASS_COMPOSITOR),
XA_CARDINAL, 32, PropModeReplace, (unsigned char *)&hint, 1);
}
static void vo_x11_check_net_wm_state_change(struct vo *vo)
{
struct vo_x11_state *x11 = vo->x11;
struct mp_vo_opts *opts = x11->opts;
if (x11->parent)
return;
if (x11->wm_type & vo_wm_FULLSCREEN) {
int num_elems;
long *elems = x11_get_property(x11, x11->window, XA(x11, _NET_WM_STATE),
XA_ATOM, 32, &num_elems);
int is_fullscreen = 0, is_minimized = 0, is_maximized = 0;
if (elems) {
Atom fullscreen_prop = XA(x11, _NET_WM_STATE_FULLSCREEN);
Atom hidden = XA(x11, _NET_WM_STATE_HIDDEN);
Atom max_vert = XA(x11, _NET_WM_STATE_MAXIMIZED_VERT);
Atom max_horiz = XA(x11, _NET_WM_STATE_MAXIMIZED_HORZ);
for (int n = 0; n < num_elems; n++) {
if (elems[n] == fullscreen_prop)
is_fullscreen = 1;
if (elems[n] == hidden)
is_minimized = 1;
if (elems[n] == max_vert || elems[n] == max_horiz)
is_maximized = 1;
}
XFree(elems);
}
opts->window_minimized = is_minimized;
m_config_cache_write_opt(x11->opts_cache, &opts->window_minimized);
opts->window_maximized = is_maximized;
m_config_cache_write_opt(x11->opts_cache, &opts->window_maximized);
if ((x11->opts->fullscreen && !is_fullscreen) ||
(!x11->opts->fullscreen && is_fullscreen))
{
x11->opts->fullscreen = is_fullscreen;
x11->fs = is_fullscreen;
m_config_cache_write_opt(x11->opts_cache, &x11->opts->fullscreen);
if (!is_fullscreen && (x11->pos_changed_during_fs ||
x11->size_changed_during_fs))
{
vo_x11_move_resize(vo, x11->pos_changed_during_fs,
x11->size_changed_during_fs,
x11->nofsrc);
}
x11->size_changed_during_fs = false;
x11->pos_changed_during_fs = false;
vo_x11_update_composition_hint(vo);
}
}
}
static void vo_x11_check_net_wm_desktop_change(struct vo *vo)
{
struct vo_x11_state *x11 = vo->x11;
if (x11->parent)
return;
long params[1] = {0};
if (x11_get_property_copy(x11, x11->window, XA(x11, _NET_WM_DESKTOP),
XA_CARDINAL, 32, params, sizeof(params)))
{
x11->opts->all_workspaces = params[0] == -1; // (gets sign-extended?)
m_config_cache_write_opt(x11->opts_cache, &x11->opts->all_workspaces);
}
}
// Releasing all keys on key-up or defocus is simpler and ensures no keys can
// get "stuck".
static void release_all_keys(struct vo *vo)
{
struct vo_x11_state *x11 = vo->x11;
if (x11->no_autorepeat)
mp_input_put_key(x11->input_ctx, MP_INPUT_RELEASE_ALL);
x11->win_drag_button1_down = false;
}
void vo_x11_check_events(struct vo *vo)
{
struct vo_x11_state *x11 = vo->x11;
Display *display = vo->x11->display;
XEvent Event;
xscreensaver_heartbeat(vo->x11);
while (XPending(display)) {
XNextEvent(display, &Event);
MP_TRACE(x11, "XEvent: %d\n", Event.type);
switch (Event.type) {
case Expose:
x11->pending_vo_events |= VO_EVENT_EXPOSE;
break;
case ConfigureNotify:
if (x11->window == None)
break;
vo_x11_update_geometry(vo);
if (x11->parent && Event.xconfigure.window == x11->parent) {
MP_TRACE(x11, "adjusting embedded window position\n");
XMoveResizeWindow(x11->display, x11->window,
0, 0, RC_W(x11->winrc), RC_H(x11->winrc));
}
break;
case KeyPress: {
char buf[100];
KeySym keySym = 0;
int modifiers = get_mods(Event.xkey.state);
if (x11->no_autorepeat)
modifiers |= MP_KEY_STATE_DOWN;
if (x11->xic) {
Status status;
int len = Xutf8LookupString(x11->xic, &Event.xkey, buf,
sizeof(buf), &keySym, &status);
int mpkey = vo_x11_lookupkey(keySym);
if (mpkey) {
mp_input_put_key(x11->input_ctx, mpkey | modifiers);
} else if (status == XLookupChars || status == XLookupBoth) {
struct bstr t = { buf, len };
mp_input_put_key_utf8(x11->input_ctx, modifiers, t);
}
} else {
XLookupString(&Event.xkey, buf, sizeof(buf), &keySym,
&x11->compose_status);
int mpkey = vo_x11_lookupkey(keySym);
if (mpkey)
mp_input_put_key(x11->input_ctx, mpkey | modifiers);
}
break;
}
case FocusIn:
x11->has_focus = true;
vo_update_cursor(vo);
break;
case FocusOut:
release_all_keys(vo);
x11->has_focus = false;
vo_update_cursor(vo);
break;
case KeyRelease:
release_all_keys(vo);
break;
case MotionNotify:
if (x11->win_drag_button1_down && !x11->fs &&
!mp_input_test_dragging(x11->input_ctx, Event.xmotion.x,
Event.xmotion.y))
{
mp_input_put_key(x11->input_ctx, MP_INPUT_RELEASE_ALL);
XUngrabPointer(x11->display, CurrentTime);
long params[5] = {
Event.xmotion.x_root, Event.xmotion.y_root,
8, // _NET_WM_MOVERESIZE_MOVE
1, // button 1
1, // source indication: normal
};
x11_send_ewmh_msg(x11, "_NET_WM_MOVERESIZE", params);
} else {
mp_input_set_mouse_pos(x11->input_ctx, Event.xmotion.x,
Event.xmotion.y);
}
x11->win_drag_button1_down = false;
break;
case LeaveNotify:
if (Event.xcrossing.mode != NotifyNormal)
break;
x11->win_drag_button1_down = false;
mp_input_put_key(x11->input_ctx, MP_KEY_MOUSE_LEAVE);
break;
case EnterNotify:
if (Event.xcrossing.mode != NotifyNormal)
break;
mp_input_put_key(x11->input_ctx, MP_KEY_MOUSE_ENTER);
break;
case ButtonPress:
if (Event.xbutton.button - 1 >= MP_KEY_MOUSE_BTN_COUNT)
break;
if (Event.xbutton.button == 1)
x11->win_drag_button1_down = true;
mp_input_put_key(x11->input_ctx,
(MP_MBTN_BASE + Event.xbutton.button - 1) |
get_mods(Event.xbutton.state) | MP_KEY_STATE_DOWN);
long msg[4] = {XEMBED_REQUEST_FOCUS};
vo_x11_xembed_send_message(x11, msg);
break;
case ButtonRelease:
if (Event.xbutton.button - 1 >= MP_KEY_MOUSE_BTN_COUNT)
break;
if (Event.xbutton.button == 1)
x11->win_drag_button1_down = false;
mp_input_put_key(x11->input_ctx,
(MP_MBTN_BASE + Event.xbutton.button - 1) |
get_mods(Event.xbutton.state) | MP_KEY_STATE_UP);
break;
case MapNotify:
x11->window_hidden = false;
x11->pseudo_mapped = true;
x11->current_icc_screen = -1;
vo_x11_update_geometry(vo);
break;
case DestroyNotify:
MP_WARN(x11, "Our window was destroyed, exiting\n");
mp_input_put_key(x11->input_ctx, MP_KEY_CLOSE_WIN);
x11->window = 0;
break;
case ClientMessage:
if (Event.xclient.message_type == XA(x11, WM_PROTOCOLS) &&
Event.xclient.data.l[0] == XA(x11, WM_DELETE_WINDOW))
mp_input_put_key(x11->input_ctx, MP_KEY_CLOSE_WIN);
vo_x11_dnd_handle_message(vo, &Event.xclient);
vo_x11_xembed_handle_message(vo, &Event.xclient);
break;
case SelectionNotify:
vo_x11_dnd_handle_selection(vo, &Event.xselection);
break;
case PropertyNotify:
if (Event.xproperty.atom == XA(x11, _NET_FRAME_EXTENTS) ||
Event.xproperty.atom == XA(x11, WM_STATE))
{
if (!x11->pseudo_mapped && !x11->parent) {
MP_VERBOSE(x11, "not waiting for MapNotify\n");
x11->pseudo_mapped = true;
}
} else if (Event.xproperty.atom == XA(x11, _NET_WM_STATE)) {
vo_x11_check_net_wm_state_change(vo);
} else if (Event.xproperty.atom == XA(x11, _NET_WM_DESKTOP)) {
vo_x11_check_net_wm_desktop_change(vo);
} else if (Event.xproperty.atom == x11->icc_profile_property) {
x11->pending_vo_events |= VO_EVENT_ICC_PROFILE_CHANGED;
}
break;
default:
if (Event.type == x11->ShmCompletionEvent) {
if (x11->ShmCompletionWaitCount > 0)
x11->ShmCompletionWaitCount--;
}
if (Event.type == x11->xrandr_event) {
xrandr_read(x11);
vo_x11_update_geometry(vo);
}
break;
}
}
update_vo_size(vo);
}
static void vo_x11_sizehint(struct vo *vo, struct mp_rect rc, bool override_pos)
{
struct vo_x11_state *x11 = vo->x11;
struct mp_vo_opts *opts = x11->opts;
if (!x11->window || x11->parent)
return;
bool force_pos = opts->geometry.xy_valid || // explicitly forced by user
opts->force_window_position || // resize -> reset position
opts->screen_id >= 0 || // force onto screen area
x11->parent || // force to fill parent
override_pos; // for fullscreen and such
XSizeHints *hint = XAllocSizeHints();
if (!hint)
return; // OOM
hint->flags |= PSize | (force_pos ? PPosition : 0);
hint->x = rc.x0;
hint->y = rc.y0;
hint->width = RC_W(rc);
hint->height = RC_H(rc);
hint->max_width = 0;
hint->max_height = 0;
if (opts->keepaspect && opts->keepaspect_window) {
hint->flags |= PAspect;
hint->min_aspect.x = hint->width;
hint->min_aspect.y = hint->height;
hint->max_aspect.x = hint->width;
hint->max_aspect.y = hint->height;
}
// Set minimum height/width to 4 to avoid off-by-one errors.
hint->flags |= PMinSize;
hint->min_width = hint->min_height = 4;
// This will use the top/left corner of the window for positioning, instead
// of the top/left corner of the client. _NET_MOVERESIZE_WINDOW could be
// used to get a different reference point, while keeping gravity.
hint->flags |= PWinGravity;
hint->win_gravity = CenterGravity;
XSetWMNormalHints(x11->display, x11->window, hint);
XFree(hint);
}
static void vo_x11_move_resize(struct vo *vo, bool move, bool resize,
struct mp_rect rc)
{
if (!vo->x11->window)
return;
int w = RC_W(rc), h = RC_H(rc);
XWindowChanges req = {.x = rc.x0, .y = rc.y0, .width = w, .height = h};
unsigned mask = (move ? CWX | CWY : 0) | (resize ? CWWidth | CWHeight : 0);
if (mask)
XConfigureWindow(vo->x11->display, vo->x11->window, mask, &req);
vo_x11_sizehint(vo, rc, false);
}
// set a X text property that expects a UTF8_STRING type
static void vo_x11_set_property_utf8(struct vo *vo, Atom name, const char *t)
{
struct vo_x11_state *x11 = vo->x11;
XChangeProperty(x11->display, x11->window, name, XA(x11, UTF8_STRING), 8,
PropModeReplace, t, strlen(t));
}
// set a X text property that expects a STRING or COMPOUND_TEXT type
static void vo_x11_set_property_string(struct vo *vo, Atom name, const char *t)
{
struct vo_x11_state *x11 = vo->x11;
XTextProperty prop = {0};
if (Xutf8TextListToTextProperty(x11->display, (char **)&t, 1,
XStdICCTextStyle, &prop) == Success)
{
XSetTextProperty(x11->display, x11->window, &prop, name);
} else {
// Strictly speaking this violates the ICCCM, but there's no way we
// can do this correctly.
vo_x11_set_property_utf8(vo, name, t);
}
if (prop.value)
XFree(prop.value);
}
static void vo_x11_update_window_title(struct vo *vo)
{
struct vo_x11_state *x11 = vo->x11;
if (!x11->window || !x11->window_title)
return;
vo_x11_set_property_string(vo, XA_WM_NAME, x11->window_title);
vo_x11_set_property_string(vo, XA_WM_ICON_NAME, x11->window_title);
vo_x11_set_property_utf8(vo, XA(x11, _NET_WM_NAME), x11->window_title);
vo_x11_set_property_utf8(vo, XA(x11, _NET_WM_ICON_NAME), x11->window_title);
}
static void vo_x11_xembed_update(struct vo_x11_state *x11, int flags)
{
if (!x11->window || !x11->parent)
return;
long xembed_info[] = {XEMBED_VERSION, flags};
Atom name = XA(x11, _XEMBED_INFO);
XChangeProperty(x11->display, x11->window, name, name, 32,
PropModeReplace, (char *)xembed_info, 2);
}
static void vo_x11_xembed_handle_message(struct vo *vo, XClientMessageEvent *ce)
{
struct vo_x11_state *x11 = vo->x11;
if (!x11->window || !x11->parent || ce->message_type != XA(x11, _XEMBED))
return;
long msg = ce->data.l[1];
if (msg == XEMBED_EMBEDDED_NOTIFY)
MP_VERBOSE(x11, "Parent windows supports XEmbed.\n");
}
static void vo_x11_xembed_send_message(struct vo_x11_state *x11, long m[4])
{
if (!x11->window || !x11->parent)
return;
XEvent ev = {.xclient = {
.type = ClientMessage,
.window = x11->parent,
.message_type = XA(x11, _XEMBED),
.format = 32,
.data = {.l = { CurrentTime, m[0], m[1], m[2], m[3] }},
} };
XSendEvent(x11->display, x11->parent, False, NoEventMask, &ev);
}
static void vo_x11_set_wm_icon(struct vo_x11_state *x11)
{
int icon_size = 0;
long *icon = talloc_array(NULL, long, 0);
for (int n = 0; x11_icons[n].start; n++) {
struct mp_image *img =
load_image_png_buf(x11_icons[n].start, x11_icons[n].len, IMGFMT_RGBA);
if (!img)
continue;
int new_size = 2 + img->w * img->h;
MP_RESIZE_ARRAY(NULL, icon, icon_size + new_size);
long *cur = icon + icon_size;
icon_size += new_size;
*cur++ = img->w;
*cur++ = img->h;
for (int y = 0; y < img->h; y++) {
uint8_t *s = (uint8_t *)img->planes[0] + img->stride[0] * y;
for (int x = 0; x < img->w; x++) {
*cur++ = s[x * 4 + 0] | (s[x * 4 + 1] << 8) |
(s[x * 4 + 2] << 16) | ((unsigned)s[x * 4 + 3] << 24);
}
}
talloc_free(img);
}
XChangeProperty(x11->display, x11->window, XA(x11, _NET_WM_ICON),
XA_CARDINAL, 32, PropModeReplace,
(unsigned char *)icon, icon_size);
talloc_free(icon);
}
static void vo_x11_create_window(struct vo *vo, XVisualInfo *vis,
struct mp_rect rc)
{
struct vo_x11_state *x11 = vo->x11;
assert(x11->window == None);
assert(!x11->xic);
XVisualInfo vinfo_storage;
if (!vis) {
vis = &vinfo_storage;
XWindowAttributes att;
XGetWindowAttributes(x11->display, x11->rootwin, &att);
XMatchVisualInfo(x11->display, x11->screen, att.depth, TrueColor, vis);
}
if (x11->colormap == None) {
x11->colormap = XCreateColormap(x11->display, x11->rootwin,
vis->visual, AllocNone);
}
unsigned long xswamask = CWBorderPixel | CWColormap;
XSetWindowAttributes xswa = {
.border_pixel = 0,
.colormap = x11->colormap,
};
Window parent = x11->parent;
if (!parent)
parent = x11->rootwin;
x11->window =
XCreateWindow(x11->display, parent, rc.x0, rc.y0, RC_W(rc), RC_H(rc), 0,
vis->depth, CopyFromParent, vis->visual, xswamask, &xswa);
Atom protos[1] = {XA(x11, WM_DELETE_WINDOW)};
XSetWMProtocols(x11->display, x11->window, protos, 1);
x11->mouse_cursor_set = false;
x11->mouse_cursor_visible = true;
vo_update_cursor(vo);
if (x11->xim) {
x11->xic = XCreateIC(x11->xim,
XNInputStyle, XIMPreeditNone | XIMStatusNone,
XNClientWindow, x11->window,
XNFocusWindow, x11->window,
NULL);
}
if (!x11->parent) {
vo_x11_update_composition_hint(vo);
vo_x11_set_wm_icon(x11);
vo_x11_update_window_title(vo);
vo_x11_dnd_init_window(vo);
vo_x11_set_property_utf8(vo, XA(x11, _GTK_THEME_VARIANT), "dark");
}
vo_x11_xembed_update(x11, 0);
}
static void vo_x11_map_window(struct vo *vo, struct mp_rect rc)
{
struct vo_x11_state *x11 = vo->x11;
vo_x11_move_resize(vo, true, true, rc);
vo_x11_decoration(vo, x11->opts->border);
if (x11->opts->fullscreen && (x11->wm_type & vo_wm_FULLSCREEN)) {
Atom state = XA(x11, _NET_WM_STATE_FULLSCREEN);
XChangeProperty(x11->display, x11->window, XA(x11, _NET_WM_STATE), XA_ATOM,
32, PropModeAppend, (unsigned char *)&state, 1);
x11->fs = 1;
// The "saved" positions are bogus, so reset them when leaving FS again.
x11->size_changed_during_fs = true;
x11->pos_changed_during_fs = true;
}
if (x11->opts->fsscreen_id != -1) {
long params[5] = {0};
if (x11->opts->fsscreen_id >= 0) {
for (int n = 0; n < 4; n++)
params[n] = x11->opts->fsscreen_id;
} else {
vo_x11_get_bounding_monitors(x11, &params[0]);
}
params[4] = 1; // source indication: normal
x11_send_ewmh_msg(x11, "_NET_WM_FULLSCREEN_MONITORS", params);
}
if (x11->opts->all_workspaces) {
long v = 0xFFFFFFFF;
XChangeProperty(x11->display, x11->window, XA(x11, _NET_WM_DESKTOP),
XA_CARDINAL, 32, PropModeReplace, (unsigned char *)&v, 1);
}
vo_x11_update_composition_hint(vo);
// map window
int events = StructureNotifyMask | ExposureMask | PropertyChangeMask |
LeaveWindowMask | EnterWindowMask | FocusChangeMask;
if (mp_input_mouse_enabled(x11->input_ctx))
events |= PointerMotionMask | ButtonPressMask | ButtonReleaseMask;
if (mp_input_vo_keyboard_enabled(x11->input_ctx))
events |= KeyPressMask | KeyReleaseMask;
vo_x11_selectinput_witherr(vo, x11->display, x11->window, events);
XMapWindow(x11->display, x11->window);
if (x11->opts->window_maximized) // don't override WM default on "no"
vo_x11_maximize(vo);
if (x11->opts->window_minimized) // don't override WM default on "no"
vo_x11_minimize(vo);
if (x11->opts->fullscreen && (x11->wm_type & vo_wm_FULLSCREEN))
x11_set_ewmh_state(x11, "_NET_WM_STATE_FULLSCREEN", 1);
vo_x11_xembed_update(x11, XEMBED_MAPPED);
}
static void vo_x11_highlevel_resize(struct vo *vo, struct mp_rect rc)
{
struct vo_x11_state *x11 = vo->x11;
struct mp_vo_opts *opts = x11->opts;
bool reset_pos = opts->force_window_position;
if (reset_pos) {
x11->nofsrc = rc;
} else {
x11->nofsrc.x1 = x11->nofsrc.x0 + RC_W(rc);
x11->nofsrc.y1 = x11->nofsrc.y0 + RC_H(rc);
}
if (opts->fullscreen) {
x11->size_changed_during_fs = true;
x11->pos_changed_during_fs = reset_pos;
vo_x11_sizehint(vo, rc, false);
} else {
vo_x11_move_resize(vo, reset_pos, true, rc);
}
}
static void wait_until_mapped(struct vo *vo)
{
struct vo_x11_state *x11 = vo->x11;
if (!x11->pseudo_mapped)
x11_send_ewmh_msg(x11, "_NET_REQUEST_FRAME_EXTENTS", (long[5]){0});
while (!x11->pseudo_mapped && x11->window) {
XWindowAttributes att;
XGetWindowAttributes(x11->display, x11->window, &att);
if (att.map_state != IsUnmapped) {
x11->pseudo_mapped = true;
break;
}
XEvent unused;
XPeekEvent(x11->display, &unused);
vo_x11_check_events(vo);
}
}
// Create the X11 window. There is only 1, and it must be created before
// vo_x11_config_vo_window() is called. vis can be NULL for default.
bool vo_x11_create_vo_window(struct vo *vo, XVisualInfo *vis,
const char *classname)
{
struct vo_x11_state *x11 = vo->x11;
assert(!x11->window);
if (x11->parent) {
if (x11->parent == x11->rootwin) {
x11->window = x11->rootwin;
x11->pseudo_mapped = true;
XSelectInput(x11->display, x11->window, StructureNotifyMask);
} else {
XSelectInput(x11->display, x11->parent, StructureNotifyMask);
}
}
if (x11->window == None) {
vo_x11_create_window(vo, vis, (struct mp_rect){.x1 = 320, .y1 = 200 });
vo_x11_classhint(vo, x11->window, classname);
x11->window_hidden = true;
}
return !!x11->window;
}
// Resize the window (e.g. new file, or video resolution change)
void vo_x11_config_vo_window(struct vo *vo)
{
struct vo_x11_state *x11 = vo->x11;
struct mp_vo_opts *opts = x11->opts;
assert(x11->window);
vo_x11_update_screeninfo(vo);
struct vo_win_geometry geo;
vo_calc_window_geometry2(vo, &x11->screenrc, x11->dpi_scale, &geo);
vo_apply_window_geometry(vo, &geo);
struct mp_rect rc = geo.win;
if (x11->parent) {
vo_x11_update_geometry(vo);
rc = (struct mp_rect){0, 0, RC_W(x11->winrc), RC_H(x11->winrc)};
}
bool reset_size = x11->old_dw != RC_W(rc) || x11->old_dh != RC_H(rc);
x11->old_dw = RC_W(rc);
x11->old_dh = RC_H(rc);
if (x11->window_hidden) {
x11->nofsrc = rc;
vo_x11_map_window(vo, rc);
} else if (reset_size) {
vo_x11_highlevel_resize(vo, rc);
}
if (opts->ontop)
vo_x11_setlayer(vo, opts->ontop);
vo_x11_fullscreen(vo);
wait_until_mapped(vo);
vo_x11_update_geometry(vo);
update_vo_size(vo);
x11->pending_vo_events &= ~VO_EVENT_RESIZE; // implicitly done by the VO
}
static void vo_x11_setlayer(struct vo *vo, bool ontop)
{
struct vo_x11_state *x11 = vo->x11;
if (x11->parent || !x11->window)
return;
if (x11->wm_type & (vo_wm_STAYS_ON_TOP | vo_wm_ABOVE)) {
char *state = "_NET_WM_STATE_ABOVE";
// Not in EWMH - but the old code preferred this (maybe it is "better")
if (x11->wm_type & vo_wm_STAYS_ON_TOP)
state = "_NET_WM_STATE_STAYS_ON_TOP";
x11_set_ewmh_state(x11, state, ontop);
MP_VERBOSE(x11, "NET style stay on top (%d). Using state %s.\n",
ontop, state);
} else if (x11->wm_type & vo_wm_LAYER) {
if (!x11->orig_layer) {
x11->orig_layer = WIN_LAYER_NORMAL;
x11_get_property_copy(x11, x11->window, XA(x11, _WIN_LAYER),
XA_CARDINAL, 32, &x11->orig_layer, sizeof(long));
MP_VERBOSE(x11, "original window layer is %ld.\n", x11->orig_layer);
}
long params[5] = {0};
// if not fullscreen, stay on default layer
params[0] = ontop ? WIN_LAYER_ABOVE_DOCK : x11->orig_layer;
params[1] = CurrentTime;
MP_VERBOSE(x11, "Layered style stay on top (layer %ld).\n", params[0]);
x11_send_ewmh_msg(x11, "_WIN_LAYER", params);
}
}
static bool rc_overlaps(struct mp_rect rc1, struct mp_rect rc2)
{
return mp_rect_intersection(&rc1, &rc2); // changes the first argument
}
// which screen's ICC profile we're going to use
static int get_icc_screen(struct vo *vo)
{
struct vo_x11_state *x11 = vo->x11;
int cx = x11->winrc.x0 + (x11->winrc.x1 - x11->winrc.x0)/2,
cy = x11->winrc.y0 + (x11->winrc.y1 - x11->winrc.y0)/2;
int screen = x11->current_icc_screen; // xinerama screen number
for (int n = 0; n < x11->num_displays; n++) {
struct xrandr_display *disp = &x11->displays[n];
if (mp_rect_contains(&disp->rc, cx, cy)) {
screen = n;
break;
}
}
return screen;
}
// update x11->winrc with current boundaries of vo->x11->window
static void vo_x11_update_geometry(struct vo *vo)
{
struct vo_x11_state *x11 = vo->x11;
int x = 0, y = 0;
unsigned w, h, dummy_uint;
int dummy_int;
Window dummy_win;
Window win = x11->parent ? x11->parent : x11->window;
x11->winrc = (struct mp_rect){0, 0, 0, 0};
if (win) {
XGetGeometry(x11->display, win, &dummy_win, &dummy_int, &dummy_int,
&w, &h, &dummy_int, &dummy_uint);
if (w > INT_MAX || h > INT_MAX)
w = h = 0;
XTranslateCoordinates(x11->display, win, x11->rootwin, 0, 0,
&x, &y, &dummy_win);
x11->winrc = (struct mp_rect){x, y, x + w, y + h};
}
double fps = 1000.0;
for (int n = 0; n < x11->num_displays; n++) {
struct xrandr_display *disp = &x11->displays[n];
disp->overlaps = rc_overlaps(disp->rc, x11->winrc);
if (disp->overlaps)
fps = MPMIN(fps, disp->fps);
}
double fallback = x11->num_displays > 0 ? x11->displays[0].fps : 0;
fps = fps < 1000.0 ? fps : fallback;
if (fps != x11->current_display_fps)
MP_VERBOSE(x11, "Current display FPS: %f\n", fps);
x11->current_display_fps = fps;
// might have changed displays
x11->pending_vo_events |= VO_EVENT_WIN_STATE;
int icc_screen = get_icc_screen(vo);
if (x11->current_icc_screen != icc_screen) {
x11->current_icc_screen = icc_screen;
x11->pending_vo_events |= VO_EVENT_ICC_PROFILE_CHANGED;
}
}
static void vo_x11_fullscreen(struct vo *vo)
{
struct vo_x11_state *x11 = vo->x11;
struct mp_vo_opts *opts = x11->opts;
if (opts->fullscreen == x11->fs)
return;
x11->fs = opts->fullscreen; // x11->fs now contains the new state
if (x11->parent || !x11->window)
return;
// Save old state before entering fullscreen
if (x11->fs) {
vo_x11_update_geometry(vo);
x11->nofsrc = x11->winrc;
}
struct mp_rect rc = x11->nofsrc;
if (x11->wm_type & vo_wm_FULLSCREEN) {
x11_set_ewmh_state(x11, "_NET_WM_STATE_FULLSCREEN", x11->fs);
if (!x11->fs && (x11->pos_changed_during_fs ||
x11->size_changed_during_fs))
{
if (x11->screenrc.x0 == rc.x0 && x11->screenrc.x1 == rc.x1 &&
x11->screenrc.y0 == rc.y0 && x11->screenrc.y1 == rc.y1)
{
// Workaround for some WMs switching back to FS in this case.
MP_VERBOSE(x11, "avoiding triggering old-style fullscreen\n");
rc.x1 -= 1;
rc.y1 -= 1;
}
vo_x11_move_resize(vo, x11->pos_changed_during_fs,
x11->size_changed_during_fs, rc);
}
} else {
if (x11->fs) {
vo_x11_update_screeninfo(vo);
rc = x11->screenrc;
}
vo_x11_decoration(vo, opts->border && !x11->fs);
vo_x11_sizehint(vo, rc, true);
XMoveResizeWindow(x11->display, x11->window, rc.x0, rc.y0,
RC_W(rc), RC_H(rc));
vo_x11_setlayer(vo, x11->fs || opts->ontop);
XRaiseWindow(x11->display, x11->window);
XFlush(x11->display);
}
x11->size_changed_during_fs = false;
x11->pos_changed_during_fs = false;
vo_x11_update_composition_hint(vo);
}
static void vo_x11_maximize(struct vo *vo)
{
struct vo_x11_state *x11 = vo->x11;
long params[5] = {
x11->opts->window_maximized ? NET_WM_STATE_ADD : NET_WM_STATE_REMOVE,
XA(x11, _NET_WM_STATE_MAXIMIZED_VERT),
XA(x11, _NET_WM_STATE_MAXIMIZED_HORZ),
1, // source indication: normal
};
x11_send_ewmh_msg(x11, "_NET_WM_STATE", params);
}
static void vo_x11_minimize(struct vo *vo)
{
struct vo_x11_state *x11 = vo->x11;
if (x11->opts->window_minimized) {
XIconifyWindow(x11->display, x11->window, x11->screen);
} else {
long params[5] = {0};
x11_send_ewmh_msg(x11, "_NET_ACTIVE_WINDOW", params);
}
}
int vo_x11_control(struct vo *vo, int *events, int request, void *arg)
{
struct vo_x11_state *x11 = vo->x11;
struct mp_vo_opts *opts = x11->opts;
switch (request) {
case VOCTRL_CHECK_EVENTS:
vo_x11_check_events(vo);
*events |= x11->pending_vo_events;
x11->pending_vo_events = 0;
return VO_TRUE;
case VOCTRL_VO_OPTS_CHANGED: {
void *opt;
while (m_config_cache_get_next_changed(x11->opts_cache, &opt)) {
if (opt == &opts->fullscreen)
vo_x11_fullscreen(vo);
if (opt == &opts->ontop)
vo_x11_setlayer(vo, opts->ontop);
if (opt == &opts->border)
vo_x11_decoration(vo, opts->border);
if (opt == &opts->all_workspaces) {
long params[5] = {0xFFFFFFFF, 1};
if (!opts->all_workspaces) {
x11_get_property_copy(x11, x11->rootwin,
XA(x11, _NET_CURRENT_DESKTOP),
XA_CARDINAL, 32, &params[0],
sizeof(params[0]));
}
x11_send_ewmh_msg(x11, "_NET_WM_DESKTOP", params);
}
if (opt == &opts->window_minimized)
vo_x11_minimize(vo);
if (opt == &opts->window_maximized)
vo_x11_maximize(vo);
}
return VO_TRUE;
}
case VOCTRL_GET_UNFS_WINDOW_SIZE: {
int *s = arg;
if (!x11->window || x11->parent)
return VO_FALSE;
s[0] = (x11->fs ? RC_W(x11->nofsrc) : RC_W(x11->winrc)) / x11->dpi_scale;
s[1] = (x11->fs ? RC_H(x11->nofsrc) : RC_H(x11->winrc)) / x11->dpi_scale;
return VO_TRUE;
}
case VOCTRL_SET_UNFS_WINDOW_SIZE: {
int *s = arg;
if (!x11->window || x11->parent)
return VO_FALSE;
int w = s[0] * x11->dpi_scale;
int h = s[1] * x11->dpi_scale;
struct mp_rect rc = x11->winrc;
rc.x1 = rc.x0 + w;
rc.y1 = rc.y0 + h;
vo_x11_highlevel_resize(vo, rc);
if (!x11->fs) { // guess new window size, instead of waiting for X
x11->winrc.x1 = x11->winrc.x0 + w;
x11->winrc.y1 = x11->winrc.y0 + h;
}
return VO_TRUE;
}
case VOCTRL_GET_DISPLAY_NAMES: {
if (!x11->pseudo_mapped)
return VO_FALSE;
char **names = NULL;
int displays_spanned = 0;
for (int n = 0; n < x11->num_displays; n++) {
if (rc_overlaps(x11->displays[n].rc, x11->winrc))
MP_TARRAY_APPEND(NULL, names, displays_spanned,
talloc_strdup(NULL, x11->displays[n].name));
}
MP_TARRAY_APPEND(NULL, names, displays_spanned, NULL);
*(char ***)arg = names;
return VO_TRUE;
}
case VOCTRL_GET_ICC_PROFILE: {
if (!x11->pseudo_mapped)
return VO_NOTAVAIL;
int screen = get_icc_screen(vo);
int atom_id = x11->displays[screen].atom_id;
char prop[80];
snprintf(prop, sizeof(prop), "_ICC_PROFILE");
if (atom_id > 0)
mp_snprintf_cat(prop, sizeof(prop), "_%d", atom_id);
x11->icc_profile_property = XAs(x11, prop);
int len;
MP_VERBOSE(x11, "Retrieving ICC profile for display: %d\n", screen);
void *icc = x11_get_property(x11, x11->rootwin, x11->icc_profile_property,
XA_CARDINAL, 8, &len);
if (!icc)
return VO_FALSE;
*(bstr *)arg = bstrdup(NULL, (bstr){icc, len});
XFree(icc);
// Watch x11->icc_profile_property
XSelectInput(x11->display, x11->rootwin, PropertyChangeMask);
return VO_TRUE;
}
case VOCTRL_SET_CURSOR_VISIBILITY:
x11->mouse_cursor_visible = *(bool *)arg;
vo_update_cursor(vo);
return VO_TRUE;
case VOCTRL_KILL_SCREENSAVER:
set_screensaver(x11, false);
return VO_TRUE;
case VOCTRL_RESTORE_SCREENSAVER:
set_screensaver(x11, true);
return VO_TRUE;
case VOCTRL_UPDATE_WINDOW_TITLE:
talloc_free(x11->window_title);
x11->window_title = talloc_strdup(x11, (char *)arg);
if (!x11->parent)
vo_x11_update_window_title(vo);
return VO_TRUE;
case VOCTRL_GET_DISPLAY_FPS: {
double fps = x11->current_display_fps;
if (fps <= 0)
break;
*(double *)arg = fps;
return VO_TRUE;
}
}
return VO_NOTIMPL;
}
void vo_x11_wakeup(struct vo *vo)
{
struct vo_x11_state *x11 = vo->x11;
(void)write(x11->wakeup_pipe[1], &(char){0}, 1);
}
void vo_x11_wait_events(struct vo *vo, int64_t until_time_us)
{
struct vo_x11_state *x11 = vo->x11;
struct pollfd fds[2] = {
{ .fd = x11->event_fd, .events = POLLIN },
{ .fd = x11->wakeup_pipe[0], .events = POLLIN },
};
int64_t wait_us = until_time_us - mp_time_us();
int timeout_ms = MPCLAMP((wait_us + 999) / 1000, 0, 10000);
poll(fds, 2, timeout_ms);
if (fds[1].revents & POLLIN)
mp_flush_wakeup_pipe(x11->wakeup_pipe[0]);
}
static void xscreensaver_heartbeat(struct vo_x11_state *x11)
{
double time = mp_time_sec();
if (x11->display && !x11->screensaver_enabled &&
(time - x11->screensaver_time_last) >= 10)
{
x11->screensaver_time_last = time;
sem_post(&x11->screensaver_sem);
XResetScreenSaver(x11->display);
}
}
static int xss_suspend(Display *mDisplay, Bool suspend)
{
int event, error, major, minor;
if (XScreenSaverQueryExtension(mDisplay, &event, &error) != True ||
XScreenSaverQueryVersion(mDisplay, &major, &minor) != True)
return 0;
if (major < 1 || (major == 1 && minor < 1))
return 0;
XScreenSaverSuspend(mDisplay, suspend);
return 1;
}
static void set_screensaver(struct vo_x11_state *x11, bool enabled)
{
Display *mDisplay = x11->display;
if (!mDisplay || x11->screensaver_enabled == enabled)
return;
MP_VERBOSE(x11, "%s screensaver.\n", enabled ? "Enabling" : "Disabling");
x11->screensaver_enabled = enabled;
if (xss_suspend(mDisplay, !enabled))
return;
int nothing;
if (DPMSQueryExtension(mDisplay, &nothing, &nothing)) {
BOOL onoff = 0;
CARD16 state;
DPMSInfo(mDisplay, &state, &onoff);
if (!x11->dpms_touched && enabled)
return; // enable DPMS only we we disabled it before
if (enabled != !!onoff) {
MP_VERBOSE(x11, "Setting DMPS: %s.\n", enabled ? "on" : "off");
if (enabled) {
DPMSEnable(mDisplay);
} else {
DPMSDisable(mDisplay);
x11->dpms_touched = true;
}
DPMSInfo(mDisplay, &state, &onoff);
if (enabled != !!onoff)
MP_WARN(x11, "DPMS state could not be set.\n");
}
}
}
static void vo_x11_selectinput_witherr(struct vo *vo,
Display *display,
Window w,
long event_mask)
{
XSelectInput(display, w, NoEventMask);
// NOTE: this can raise BadAccess, which should be ignored by the X error
// handler; also see below
XSelectInput(display, w, event_mask);
// Test whether setting the event mask failed (with a BadAccess X error,
// although we don't know whether this really happened).
// This is needed for obscure situations like using --rootwin with a window
// manager active.
XWindowAttributes a;
if (XGetWindowAttributes(display, w, &a)) {
long bad = ButtonPressMask | ButtonReleaseMask | PointerMotionMask;
if ((event_mask & bad) && (a.all_event_masks & bad) &&
((a.your_event_mask & bad) != (event_mask & bad)))
{
MP_ERR(vo->x11, "X11 error: error during XSelectInput "
"call, trying without mouse events\n");
XSelectInput(display, w, event_mask & ~bad);
}
}
}
bool vo_x11_screen_is_composited(struct vo *vo)
{
struct vo_x11_state *x11 = vo->x11;
char buf[50];
sprintf(buf, "_NET_WM_CM_S%d", x11->screen);
Atom NET_WM_CM = XInternAtom(x11->display, buf, False);
return XGetSelectionOwner(x11->display, NET_WM_CM) != None;
}
// Return whether the given visual has alpha (when compositing is used).
bool vo_x11_is_rgba_visual(XVisualInfo *v)
{
// This is a heuristic at best. Note that normal 8 bit Visuals use
// a depth of 24, even if the pixels are padded to 32 bit. If the
// depth is higher than 24, the remaining bits must be alpha.
// Note: vinfo->bits_per_rgb appears to be useless (is always 8).
unsigned long mask = v->depth == sizeof(unsigned long) * 8 ?
(unsigned long)-1 : (1UL << v->depth) - 1;
return mask & ~(v->red_mask | v->green_mask | v->blue_mask);
}
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