looking-glass/client/displayservers/X11/x11.c
Mikko Rasa 358515f4a8 [client] x11: Find and use the correct valuators for mouse axes
Using the first two valuators present in the event is incorrect.  Events
with only one valuator set, such as those sent by the Xorg evdev driver
when the mouse moved along one axis only, were being discarded.  On the
other hand, mice with multiple scroll wheels may be able to emit events
with two scroll wheel valuators set.

The XInput2 specification is light on details, but "Rel X" and "Rel Y"
appear to be the de facto standard names for the motion valuators.  If
valuators with those labels are not found, fall back to using valuators
with numbers 0 and 1.
2021-03-27 21:12:52 +11:00

1207 lines
28 KiB
C

/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017-2021 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program 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.
This program 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
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "interface/displayserver.h"
#include "x11.h"
#include "atoms.h"
#include "clipboard.h"
#include <string.h>
#include <unistd.h>
#include <X11/extensions/Xfixes.h>
#include <X11/extensions/XInput2.h>
#include <X11/extensions/scrnsaver.h>
#include <X11/extensions/Xinerama.h>
#include <GL/glx.h>
#include <GL/glxext.h>
#ifdef ENABLE_EGL
#include <EGL/eglext.h>
#include "egl_dynprocs.h"
#endif
#include "app.h"
#include "common/debug.h"
#define _NET_WM_STATE_REMOVE 0
#define _NET_WM_STATE_ADD 1
#define _NET_WM_STATE_TOGGLE 2
struct X11DSState x11;
struct MwmHints
{
unsigned long flags;
unsigned long functions;
unsigned long decorations;
long input_mode;
unsigned long status;
};
enum {
MWM_HINTS_FUNCTIONS = (1L << 0),
MWM_HINTS_DECORATIONS = (1L << 1),
MWM_FUNC_ALL = (1L << 0),
MWM_FUNC_RESIZE = (1L << 1),
MWM_FUNC_MOVE = (1L << 2),
MWM_FUNC_MINIMIZE = (1L << 3),
MWM_FUNC_MAXIMIZE = (1L << 4),
MWM_FUNC_CLOSE = (1L << 5)
};
// forwards
static void x11SetFullscreen(bool fs);
static int x11EventThread(void * unused);
static void x11GenericEvent(XGenericEventCookie *cookie);
static void x11Setup(void)
{
}
static bool x11Probe(void)
{
return getenv("DISPLAY") != NULL;
}
static bool x11EarlyInit(void)
{
XInitThreads();
return true;
}
static bool x11Init(const LG_DSInitParams params)
{
XIDeviceInfo *devinfo;
int count;
int event, error;
memset(&x11, 0, sizeof(x11));
x11.xValuator = -1;
x11.yValuator = -1;
x11.display = XOpenDisplay(NULL);
XSetWindowAttributes swa =
{
.event_mask =
StructureNotifyMask |
PropertyChangeMask |
ExposureMask
};
unsigned long swaMask = CWEventMask;
#ifdef ENABLE_OPENGL
if (params.opengl)
{
GLint glXAttribs[] =
{
GLX_RGBA,
GLX_DEPTH_SIZE , 24,
GLX_STENCIL_SIZE , 0,
GLX_RED_SIZE , 8,
GLX_GREEN_SIZE , 8,
GLX_BLUE_SIZE , 8,
GLX_SAMPLE_BUFFERS, 0,
GLX_SAMPLES , 0,
None
};
x11.visual = glXChooseVisual(x11.display,
XDefaultScreen(x11.display), glXAttribs);
if (!x11.visual)
{
DEBUG_ERROR("glXChooseVisual failed");
goto fail_display;
}
swa.colormap = XCreateColormap(x11.display, XDefaultRootWindow(x11.display),
x11.visual->visual, AllocNone);
swaMask |= CWColormap;
}
#endif
x11.window = XCreateWindow(
x11.display,
XDefaultRootWindow(x11.display),
params.x, params.y,
params.w, params.h,
0,
x11.visual ? x11.visual->depth : CopyFromParent,
InputOutput,
x11.visual ? x11.visual->visual : CopyFromParent,
swaMask,
&swa);
if (!x11.window)
{
DEBUG_ERROR("XCreateWindow failed");
goto fail_display;
}
XStoreName(x11.display, x11.window, params.title);
XClassHint hint =
{
.res_name = strdup(params.title),
.res_class = strdup("looking-glass-client")
};
XSetClassHint(x11.display, x11.window, &hint);
free(hint.res_name);
free(hint.res_class);
if (params.center)
{
XSizeHints *xsh = XAllocSizeHints();
xsh->flags = PWinGravity;
xsh->win_gravity = 5; //Center
XSetWMNormalHints(x11.display, x11.window, xsh);
XFree(xsh);
}
X11AtomsInit();
XSetWMProtocols(x11.display, x11.window, &x11atoms.WM_DELETE_WINDOW, 1);
if (params.borderless)
{
if (x11atoms._MOTIF_WM_HINTS)
{
const struct MwmHints hints =
{
.flags = MWM_HINTS_DECORATIONS,
.decorations = 0
};
XChangeProperty(
x11.display,
x11.window,
x11atoms._MOTIF_WM_HINTS,
x11atoms._MOTIF_WM_HINTS,
32,
PropModeReplace,
(unsigned char *)&hints,
5
);
}
XChangeProperty(
x11.display,
x11.window,
x11atoms._NET_WM_WINDOW_TYPE,
XA_ATOM,
32,
PropModeReplace,
(unsigned char *)&x11atoms._NET_WM_WINDOW_TYPE_UTILITY,
1
);
}
else
{
XChangeProperty(
x11.display,
x11.window,
x11atoms._NET_WM_WINDOW_TYPE,
XA_ATOM,
32,
PropModeReplace,
(unsigned char *)&x11atoms._NET_WM_WINDOW_TYPE_NORMAL,
1
);
}
Atom wmState[3] = {0};
int wmStateCount = 0;
if (params.fullscreen)
{
x11.fullscreen = true;
wmState[wmStateCount++] = x11atoms._NET_WM_STATE_FULLSCREEN;
}
if (params.maximize)
{
wmState[wmStateCount++] = x11atoms._NET_WM_STATE_MAXIMIZED_HORZ;
wmState[wmStateCount++] = x11atoms._NET_WM_STATE_MAXIMIZED_VERT;
}
if (wmStateCount)
{
XChangeProperty(
x11.display,
x11.window,
x11atoms._NET_WM_STATE,
XA_ATOM,
32,
PropModeReplace,
(unsigned char *)&wmState,
wmStateCount
);
}
if (x11atoms._NET_REQUEST_FRAME_EXTENTS)
{
XEvent reqevent =
{
.xclient =
{
.type = ClientMessage,
.window = x11.window,
.format = 32,
.message_type = x11atoms._NET_REQUEST_FRAME_EXTENTS
}
};
XSendEvent(x11.display, DefaultRootWindow(x11.display), False,
SubstructureNotifyMask | SubstructureRedirectMask, &reqevent);
}
int major = 2;
int minor = 0;
if (XIQueryVersion(x11.display, &major, &minor) != Success)
{
DEBUG_ERROR("Failed to query the XInput version");
return false;
}
DEBUG_INFO("X11 XInput %d.%d in use", major, minor);
devinfo = XIQueryDevice(x11.display, XIAllDevices, &count);
if (!devinfo)
{
DEBUG_ERROR("XIQueryDevice failed");
goto fail_window;
}
Atom rel_x = XInternAtom(x11.display, "Rel X", True);
Atom rel_y = XInternAtom(x11.display, "Rel Y", True);
bool havePointer = false;
bool haveKeyboard = false;
for(int i = 0; i < count; ++i)
{
/* look for the master pointing device */
if (!havePointer && devinfo[i].use == XIMasterPointer)
{
for(int j = 0; j < devinfo[i].num_classes; ++j)
{
XIAnyClassInfo *cdevinfo =
(XIAnyClassInfo *)(devinfo[i].classes[j]);
if (cdevinfo->type == XIValuatorClass)
{
XIValuatorClassInfo *vdevinfo = (XIValuatorClassInfo *)cdevinfo;
if (vdevinfo->label == rel_x || (!vdevinfo->label &&
vdevinfo->number == 0 && vdevinfo->mode == XIModeRelative))
x11.xValuator = vdevinfo->number;
else if (vdevinfo->label == rel_y || (!vdevinfo->label &&
vdevinfo->number == 1 && vdevinfo->mode == XIModeRelative))
x11.yValuator = vdevinfo->number;
}
}
if (x11.xValuator >= 0 && x11.yValuator >= 0)
{
havePointer = true;
x11.pointerDev = devinfo[i].deviceid;
}
}
/* look for the master keyboard device */
if (!haveKeyboard && devinfo[i].use == XIMasterKeyboard)
for(int j = 0; j < devinfo[i].num_classes; ++j)
{
XIAnyClassInfo *cdevinfo =
(XIAnyClassInfo *)(devinfo[i].classes[j]);
if (cdevinfo->type == XIKeyClass)
{
haveKeyboard = true;
x11.keyboardDev = devinfo[i].deviceid;
break;
}
}
}
if (!havePointer)
{
DEBUG_ERROR("Failed to find the master pointing device");
XIFreeDeviceInfo(devinfo);
goto fail_window;
}
if (!haveKeyboard)
{
DEBUG_ERROR("Failed to find the master keyboard device");
XIFreeDeviceInfo(devinfo);
goto fail_window;
}
XIFreeDeviceInfo(devinfo);
XQueryExtension(x11.display, "XInputExtension", &x11.xinputOp, &event, &error);
XIEventMask eventmask;
unsigned char mask[XIMaskLen(XI_LASTEVENT)] = { 0 };
eventmask.deviceid = XIAllMasterDevices;
eventmask.mask_len = sizeof(mask);
eventmask.mask = mask;
XISetMask(mask, XI_FocusIn );
XISetMask(mask, XI_FocusOut );
XISetMask(mask, XI_Enter );
XISetMask(mask, XI_Leave );
XISetMask(mask, XI_Motion );
XISetMask(mask, XI_KeyPress );
XISetMask(mask, XI_KeyRelease);
if (XISelectEvents(x11.display, x11.window, &eventmask, 1) != Success)
{
XFree(mask);
DEBUG_ERROR("Failed to select the xinput events");
goto fail_window;
}
Atom NETWM_BYPASS_COMPOSITOR = XInternAtom(x11.display,
"NETWM_BYPASS_COMPOSITOR", False);
unsigned long value = 1;
XChangeProperty(
x11.display,
x11.window,
NETWM_BYPASS_COMPOSITOR,
XA_CARDINAL,
32,
PropModeReplace,
(unsigned char *)&value,
1
);
/* create the blank cursor */
{
static char data[] = { 0x00 };
XColor dummy;
Pixmap temp = XCreateBitmapFromData(x11.display, x11.window, data, 1, 1);
x11.blankCursor = XCreatePixmapCursor(x11.display, temp, temp,
&dummy, &dummy, 0, 0);
XFreePixmap(x11.display, temp);
}
/* create the square cursor */
{
static char data[] = { 0x07, 0x05, 0x07 };
static char mask[] = { 0xff, 0xff, 0xff };
Colormap cmap = DefaultColormap(x11.display, DefaultScreen(x11.display));
XColor colors[2] =
{
{ .pixel = BlackPixelOfScreen(DefaultScreenOfDisplay(x11.display)) },
{ .pixel = WhitePixelOfScreen(DefaultScreenOfDisplay(x11.display)) }
};
XQueryColors(x11.display, cmap, colors, 2);
Pixmap img = XCreateBitmapFromData(x11.display, x11.window, data, 3, 3);
Pixmap msk = XCreateBitmapFromData(x11.display, x11.window, mask, 3, 3);
x11.squareCursor = XCreatePixmapCursor(x11.display, img, msk,
&colors[0], &colors[1], 1, 1);
XFreePixmap(x11.display, img);
XFreePixmap(x11.display, msk);
}
/* default to the square cursor */
XDefineCursor(x11.display, x11.window, x11.squareCursor);
XMapWindow(x11.display, x11.window);
XFlush(x11.display);
if (!lgCreateThread("X11EventThread", x11EventThread, NULL, &x11.eventThread))
{
DEBUG_ERROR("Failed to create the x11 event thread");
return false;
}
return true;
fail_window:
XDestroyWindow(x11.display, x11.window);
fail_display:
XCloseDisplay(x11.display);
return false;
}
static void x11Startup(void)
{
}
static void x11Shutdown(void)
{
}
static void x11Free(void)
{
lgJoinThread(x11.eventThread, NULL);
if (x11.window)
XDestroyWindow(x11.display, x11.window);
XFreeCursor(x11.display, x11.squareCursor);
XFreeCursor(x11.display, x11.blankCursor);
XCloseDisplay(x11.display);
}
static bool x11GetProp(LG_DSProperty prop, void *ret)
{
switch (prop)
{
case LG_DS_WARP_SUPPORT:
*(enum LG_DSWarpSupport*)ret = LG_DS_WARP_SCREEN;
return true;
case LG_DS_MAX_MULTISAMPLE:
{
Display * dpy = XOpenDisplay(NULL);
if (!dpy)
return false;
XVisualInfo queryTemplate;
queryTemplate.screen = 0;
int visualCount;
int maxSamples = -1;
XVisualInfo * visuals = XGetVisualInfo(dpy, VisualScreenMask,
&queryTemplate, &visualCount);
for (int i = 0; i < visualCount; i++)
{
XVisualInfo * visual = &visuals[i];
int res, supportsGL;
// Some GLX visuals do not use GL, and these must be ignored in our search.
if ((res = glXGetConfig(dpy, visual, GLX_USE_GL, &supportsGL)) != 0 ||
!supportsGL)
continue;
int sampleBuffers, samples;
if ((res = glXGetConfig(dpy, visual, GLX_SAMPLE_BUFFERS, &sampleBuffers)) != 0)
continue;
// Will be 1 if this visual supports multisampling
if (sampleBuffers != 1)
continue;
if ((res = glXGetConfig(dpy, visual, GLX_SAMPLES, &samples)) != 0)
continue;
// Track the largest number of samples supported
if (samples > maxSamples)
maxSamples = samples;
}
XFree(visuals);
XCloseDisplay(dpy);
*(int*)ret = maxSamples;
return true;
}
default:
return true;
}
}
static int x11EventThread(void * unused)
{
fd_set in_fds;
const int fd = ConnectionNumber(x11.display);
while(app_isRunning())
{
if (!XPending(x11.display))
{
FD_ZERO(&in_fds);
FD_SET(fd, &in_fds);
struct timeval tv =
{
.tv_usec = 250000,
.tv_sec = 0
};
int ret = select(fd + 1, &in_fds, NULL, NULL, &tv);
if (ret == 0 || !XPending(x11.display))
continue;
}
XEvent xe;
XNextEvent(x11.display, &xe);
switch(xe.type)
{
case ClientMessage:
if (xe.xclient.data.l[0] == x11atoms.WM_DELETE_WINDOW)
app_handleCloseEvent();
continue;
case ConfigureNotify:
{
int x, y;
/* the window may have been re-parented so we need to translate to
* ensure we get the screen top left position of the window */
Window child;
XTranslateCoordinates(
x11.display,
x11.window,
DefaultRootWindow(x11.display),
0, 0,
&x,
&y,
&child);
x11.rect.x = x;
x11.rect.y = y;
x11.rect.w = xe.xconfigure.width;
x11.rect.h = xe.xconfigure.height;
app_updateWindowPos(x, y);
if (x11.fullscreen)
{
struct Border border = {0};
app_handleResizeEvent(x11.rect.w, x11.rect.h, 1, border);
}
else
app_handleResizeEvent(x11.rect.w, x11.rect.h, 1, x11.border);
break;
}
case GenericEvent:
{
XGenericEventCookie *cookie = (XGenericEventCookie*)&xe.xcookie;
XGetEventData(x11.display, cookie);
x11GenericEvent(cookie);
XFreeEventData(x11.display, cookie);
break;
}
case PropertyNotify:
// ignore property events that are not for us
if (xe.xproperty.display != x11.display ||
xe.xproperty.window != x11.window ||
xe.xproperty.state != PropertyNewValue)
continue;
if (xe.xproperty.atom == x11atoms._NET_WM_STATE)
{
Atom type;
int fmt;
unsigned long num, bytes;
unsigned char *data;
if (XGetWindowProperty(x11.display, x11.window,
x11atoms._NET_WM_STATE, 0, ~0L, False, AnyPropertyType,
&type, &fmt, &num, &bytes, &data) != Success)
break;
bool fullscreen = false;
for(int i = 0; i < num; ++i)
{
Atom prop = ((Atom *)data)[i];
if (prop == x11atoms._NET_WM_STATE_FULLSCREEN)
fullscreen = true;
}
x11.fullscreen = fullscreen;
XFree(data);
break;
}
if (xe.xproperty.atom == x11atoms._NET_FRAME_EXTENTS)
{
Atom type;
int fmt;
unsigned long num, bytes;
unsigned char *data;
if (XGetWindowProperty(x11.display, x11.window,
x11atoms._NET_FRAME_EXTENTS, 0, 4, False, AnyPropertyType,
&type, &fmt, &num, &bytes, &data) != Success)
break;
if (num >= 4)
{
long *cardinal = (long *)data;
x11.border.left = cardinal[0];
x11.border.right = cardinal[1];
x11.border.top = cardinal[2];
x11.border.bottom = cardinal[3];
app_handleResizeEvent(x11.rect.w, x11.rect.h, 1, x11.border);
}
XFree(data);
break;
}
break;
}
// call the clipboard handling code
x11CBEventThread(xe);
}
return 0;
}
static void x11GenericEvent(XGenericEventCookie *cookie)
{
if (cookie->extension != x11.xinputOp)
return;
switch(cookie->evtype)
{
case XI_FocusIn:
{
if (x11.focused)
return;
XIFocusOutEvent *xie = cookie->data;
if (xie->mode != XINotifyNormal &&
xie->mode != XINotifyWhileGrabbed &&
xie->mode != XINotifyUngrab)
return;
x11.focused = true;
app_updateCursorPos(xie->event_x, xie->event_y);
app_handleFocusEvent(true);
return;
}
case XI_FocusOut:
{
if (!x11.focused)
return;
XIFocusOutEvent *xie = cookie->data;
if (xie->mode != XINotifyNormal &&
xie->mode != XINotifyWhileGrabbed &&
xie->mode != XINotifyGrab)
return;
app_updateCursorPos(xie->event_x, xie->event_y);
app_handleFocusEvent(false);
x11.focused = false;
return;
}
case XI_Enter:
{
if (x11.entered)
return;
XIEnterEvent *xie = cookie->data;
app_updateCursorPos(xie->event_x, xie->event_y);
app_handleEnterEvent(true);
x11.entered = true;
return;
}
case XI_Leave:
{
if (!x11.entered)
return;
XILeaveEvent *xie = cookie->data;
app_updateCursorPos(xie->event_x, xie->event_y);
app_handleEnterEvent(false);
x11.entered = false;
return;
}
case XI_KeyPress:
{
if (!x11.focused || x11.keyboardGrabbed)
return;
XIDeviceEvent *device = cookie->data;
app_handleKeyPress(device->detail - 8);
return;
}
case XI_KeyRelease:
{
if (!x11.focused || x11.keyboardGrabbed)
return;
XIDeviceEvent *device = cookie->data;
app_handleKeyRelease(device->detail - 8);
return;
}
case XI_RawKeyPress:
{
if (!x11.focused)
return;
XIRawEvent *raw = cookie->data;
app_handleKeyPress(raw->detail - 8);
return;
}
case XI_RawKeyRelease:
{
if (!x11.focused)
return;
XIRawEvent *raw = cookie->data;
app_handleKeyRelease(raw->detail - 8);
return;
}
case XI_RawButtonPress:
{
if (!x11.focused || !x11.entered)
return;
XIRawEvent *raw = cookie->data;
/* filter out duplicate events */
static Time prev_time = 0;
static unsigned int prev_detail = 0;
if (raw->time == prev_time && raw->detail == prev_detail)
return;
prev_time = raw->time;
prev_detail = raw->detail;
app_handleButtonPress(
raw->detail > 5 ? raw->detail - 2 : raw->detail);
return;
}
case XI_RawButtonRelease:
{
if (!x11.focused || !x11.entered)
return;
XIRawEvent *raw = cookie->data;
/* filter out duplicate events */
static Time prev_time = 0;
static unsigned int prev_detail = 0;
if (raw->time == prev_time && raw->detail == prev_detail)
return;
prev_time = raw->time;
prev_detail = raw->detail;
app_handleButtonRelease(
raw->detail > 5 ? raw->detail - 2 : raw->detail);
return;
}
case XI_Motion:
{
XIDeviceEvent *device = cookie->data;
app_updateCursorPos(device->event_x, device->event_y);
if (!x11.pointerGrabbed)
app_handleMouseRelative(0.0, 0.0, 0.0, 0.0);
return;
}
case XI_RawMotion:
{
if (!x11.focused || !x11.entered)
return;
XIRawEvent *raw = cookie->data;
double raw_axis[2] = { 0 };
double axis[2] = { 0 };
/* select the active validators for the X & Y axis */
double *valuator = raw->valuators.values;
double *r_value = raw->raw_values;
bool has_axes = false;
for(int i = 0; i < raw->valuators.mask_len * 8; ++i)
{
if (XIMaskIsSet(raw->valuators.mask, i))
{
if (i == x11.xValuator)
{
raw_axis[0] = *r_value;
axis [0] = *valuator;
has_axes = true;
}
else if (i == x11.yValuator)
{
raw_axis[1] = *r_value;
axis [1] = *valuator;
has_axes = true;
}
++valuator;
++r_value;
}
}
/* filter out events with no axis data */
if (!has_axes)
return;
/* filter out duplicate events */
static Time prev_time = 0;
static double prev_axis[2] = {0};
if (raw->time == prev_time &&
axis[0] == prev_axis[0] &&
axis[1] == prev_axis[1])
return;
prev_time = raw->time;
prev_axis[0] = axis[0];
prev_axis[1] = axis[1];
app_handleMouseRelative(axis[0], axis[1], raw_axis[0], raw_axis[1]);
return;
}
}
}
#ifdef ENABLE_EGL
static EGLDisplay x11GetEGLDisplay(void)
{
EGLDisplay ret;
const char *early_exts = eglQueryString(NULL, EGL_EXTENSIONS);
if (strstr(early_exts, "EGL_KHR_platform_base") != NULL &&
g_egl_dynProcs.eglGetPlatformDisplay)
{
DEBUG_INFO("Using eglGetPlatformDisplay");
ret = g_egl_dynProcs.eglGetPlatformDisplay(EGL_PLATFORM_X11_KHR,
x11.display, NULL);
}
else if (strstr(early_exts, "EGL_EXT_platform_base") != NULL &&
g_egl_dynProcs.eglGetPlatformDisplayEXT)
{
DEBUG_INFO("Using eglGetPlatformDisplayEXT");
ret = g_egl_dynProcs.eglGetPlatformDisplayEXT(EGL_PLATFORM_X11_KHR,
x11.display, NULL);
}
else
{
DEBUG_INFO("Using eglGetDisplay");
ret = eglGetDisplay(x11.display);
}
return ret;
}
static EGLNativeWindowType x11GetEGLNativeWindow(void)
{
return (EGLNativeWindowType)x11.window;
}
static void x11EGLSwapBuffers(EGLDisplay display, EGLSurface surface)
{
eglSwapBuffers(display, surface);
}
#endif
#ifdef ENABLE_OPENGL
static LG_DSGLContext x11GLCreateContext(void)
{
return (LG_DSGLContext)
glXCreateContext(x11.display, x11.visual, NULL, GL_TRUE);
}
static void x11GLDeleteContext(LG_DSGLContext context)
{
glXDestroyContext(x11.display, (GLXContext)context);
}
static void x11GLMakeCurrent(LG_DSGLContext context)
{
glXMakeCurrent(x11.display, x11.window, (GLXContext)context);
}
static void x11GLSetSwapInterval(int interval)
{
glXSwapIntervalEXT(x11.display, x11.window, interval);
}
static void x11GLSwapBuffers(void)
{
glXSwapBuffers(x11.display, x11.window);
}
#endif
static void x11ShowPointer(bool show)
{
if (show)
XDefineCursor(x11.display, x11.window, x11.squareCursor);
else
XDefineCursor(x11.display, x11.window, x11.blankCursor);
}
static void x11PrintGrabError(const char * type, int dev, Status ret)
{
const char * errStr;
switch(ret)
{
case AlreadyGrabbed : errStr = "AlreadyGrabbed" ; break;
case GrabNotViewable: errStr = "GrabNotViewable"; break;
case GrabFrozen : errStr = "GrabFrozen" ; break;
case GrabInvalidTime: errStr = "GrabInvalidTime"; break;
default:
errStr = "Unknown";
break;
}
DEBUG_ERROR("XIGrabDevice failed for %s dev %d with 0x%x (%s)",
type, dev, ret, errStr);
}
static void x11GrabPointer(void)
{
if (x11.pointerGrabbed)
return;
unsigned char mask_bits[XIMaskLen(XI_LASTEVENT)] = { 0 };
XIEventMask mask = {
x11.pointerDev,
sizeof(mask_bits),
mask_bits
};
XISetMask(mask.mask, XI_RawButtonPress );
XISetMask(mask.mask, XI_RawButtonRelease);
XISetMask(mask.mask, XI_RawMotion );
XISetMask(mask.mask, XI_Motion );
Status ret = XIGrabDevice(
x11.display,
x11.pointerDev,
x11.window,
CurrentTime,
None,
XIGrabModeAsync,
XIGrabModeAsync,
XINoOwnerEvents,
&mask);
if (ret != Success)
{
x11PrintGrabError("pointer", x11.pointerDev, ret);
return;
}
x11.pointerGrabbed = true;
}
static void x11UngrabPointer(void)
{
if (!x11.pointerGrabbed)
return;
XIUngrabDevice(x11.display, x11.pointerDev, CurrentTime);
XSync(x11.display, False);
x11.pointerGrabbed = false;
}
static void x11GrabKeyboard(void)
{
if (x11.keyboardGrabbed)
return;
unsigned char mask_bits[XIMaskLen (XI_LASTEVENT)] = { 0 };
XIEventMask mask = {
x11.keyboardDev,
sizeof(mask_bits),
mask_bits
};
XISetMask(mask.mask, XI_RawKeyPress );
XISetMask(mask.mask, XI_RawKeyRelease);
Status ret = XIGrabDevice(
x11.display,
x11.keyboardDev,
x11.window,
CurrentTime,
None,
XIGrabModeAsync,
XIGrabModeAsync,
XINoOwnerEvents,
&mask);
if (ret != Success)
{
x11PrintGrabError("keyboard", x11.keyboardDev, ret);
return;
}
x11.keyboardGrabbed = true;
}
static void x11UngrabKeyboard(void)
{
if (!x11.keyboardGrabbed)
return;
XIUngrabDevice(x11.display, x11.keyboardDev, CurrentTime);
XSync(x11.display, False);
x11.keyboardGrabbed = false;
}
static void x11WarpPointer(int x, int y, bool exiting)
{
XIWarpPointer(
x11.display,
x11.pointerDev,
None,
x11.window,
0, 0, 0, 0,
x, y);
XSync(x11.display, False);
}
static void x11RealignPointer(void)
{
app_handleMouseRelative(0.0, 0.0, 0.0, 0.0);
}
static bool x11IsValidPointerPos(int x, int y)
{
int screens;
XineramaScreenInfo *xinerama = XineramaQueryScreens(x11.display, &screens);
if(!xinerama)
return true;
bool ret = false;
for(int i = 0; i < screens; ++i)
if (x >= xinerama[i].x_org && x < xinerama[i].x_org + xinerama[i].width &&
y >= xinerama[i].y_org && y < xinerama[i].y_org + xinerama[i].height)
{
ret = true;
break;
}
XFree(xinerama);
return ret;
}
static void x11InhibitIdle(void)
{
XScreenSaverSuspend(x11.display, true);
}
static void x11UninhibitIdle(void)
{
XScreenSaverSuspend(x11.display, false);
}
static void x11Wait(unsigned int time)
{
usleep(time * 1000U);
}
static void x11SetWindowSize(int w, int h)
{
XResizeWindow(x11.display, x11.window, w, h);
}
static void x11SetFullscreen(bool fs)
{
if (x11.fullscreen == fs)
return;
XEvent e =
{
.xclient = {
.type = ClientMessage,
.send_event = true,
.message_type = x11atoms._NET_WM_STATE,
.format = 32,
.window = x11.window,
.data.l = {
fs ? _NET_WM_STATE_ADD : _NET_WM_STATE_REMOVE,
x11atoms._NET_WM_STATE_FULLSCREEN,
0
}
}
};
XSendEvent(x11.display, DefaultRootWindow(x11.display), False,
SubstructureNotifyMask | SubstructureRedirectMask, &e);
}
static bool x11GetFullscreen(void)
{
return x11.fullscreen;
}
struct LG_DisplayServerOps LGDS_X11 =
{
.setup = x11Setup,
.probe = x11Probe,
.earlyInit = x11EarlyInit,
.init = x11Init,
.startup = x11Startup,
.shutdown = x11Shutdown,
.free = x11Free,
.getProp = x11GetProp,
#ifdef ENABLE_EGL
.getEGLDisplay = x11GetEGLDisplay,
.getEGLNativeWindow = x11GetEGLNativeWindow,
.eglSwapBuffers = x11EGLSwapBuffers,
#endif
#ifdef ENABLE_OPENGL
.glCreateContext = x11GLCreateContext,
.glDeleteContext = x11GLDeleteContext,
.glMakeCurrent = x11GLMakeCurrent,
.glSetSwapInterval = x11GLSetSwapInterval,
.glSwapBuffers = x11GLSwapBuffers,
#endif
.showPointer = x11ShowPointer,
.grabPointer = x11GrabPointer,
.ungrabPointer = x11UngrabPointer,
.grabKeyboard = x11GrabKeyboard,
.ungrabKeyboard = x11UngrabKeyboard,
.warpPointer = x11WarpPointer,
.realignPointer = x11RealignPointer,
.isValidPointerPos = x11IsValidPointerPos,
.inhibitIdle = x11InhibitIdle,
.uninhibitIdle = x11UninhibitIdle,
.wait = x11Wait,
.setWindowSize = x11SetWindowSize,
.setFullscreen = x11SetFullscreen,
.getFullscreen = x11GetFullscreen,
.cbInit = x11CBInit,
.cbNotice = x11CBNotice,
.cbRelease = x11CBRelease,
.cbRequest = x11CBRequest
};