Remove xi2 code, it's not needed

README.md

@@ -62,7 +62,7 @@ These are the dependencies needed to build GPU Screen Recorder:
 
 * libglvnd (which provides libgl, libglx and libegl)
 * ffmpeg (libavcodec, libavformat, libavutil, libswresample, libavfilter)
-* x11 (libx11, libxcomposite, libxrandr, libxfixes, libxdamage, libxi)
+* x11 (libx11, libxcomposite, libxrandr, libxfixes, libxdamage)
 * libpulse
 * libva (and libva-drm)
 * libdrm

include/cursor.h

@@ -8,7 +8,6 @@ typedef struct {
     gsr_egl *egl;
     Display *display;
     int x_fixes_event_base;
-    int xi_opcode;
 
     unsigned int texture_id;
     vec2i size;
@@ -17,7 +16,6 @@ typedef struct {
 
     bool cursor_image_set;
     bool visible;
-    bool cursor_moved;
 } gsr_cursor;
 
 int gsr_cursor_init(gsr_cursor *self, gsr_egl *egl, Display *display);

meson.build

@@ -42,7 +42,6 @@ dep = [
     dependency('xrandr'),
     dependency('xfixes'),
     dependency('xdamage'),
-    dependency('xi'),
     dependency('libpulse'),
     dependency('libswresample'),
     dependency('libavfilter'),

project.conf

@@ -20,7 +20,6 @@ xcomposite = ">=0.2"
 xrandr = ">=1"
 xfixes = ">=2"
 xdamage = ">=1"
-xi = ">=1"
 libpulse = ">=13"
 libswresample = ">=3"
 libavfilter = ">=5"

src/cursor.c

@@ -6,8 +6,6 @@
 #include <assert.h>
 
 #include <X11/extensions/Xfixes.h>
-#include <X11/extensions/XI2.h>
-#include <X11/extensions/XInput2.h>
 
 // TODO: Test cursor visibility with XFixesHideCursor
 
@@ -72,26 +70,6 @@ static bool gsr_cursor_set_from_x11_cursor_image(gsr_cursor *self, XFixesCursorI
     return false;
 }
 
-static bool xinput_is_supported(Display *dpy, int *xi_opcode) {
-    *xi_opcode = 0;
-    int query_event = 0;
-    int query_error = 0;
-    if(!XQueryExtension(dpy, "XInputExtension", xi_opcode, &query_event, &query_error)) {
-        fprintf(stderr, "gsr error: gsr_cursor_init: X Input extension not available\n");
-        return false;
-    }
-
-    int major = 2;
-    int minor = 1;
-    int retval = XIQueryVersion(dpy, &major, &minor);
-    if (retval != Success) {
-        fprintf(stderr, "gsr error: gsr_cursor_init: XInput 2.1 is not supported\n");
-        return false;
-    }
-
-    return true;
-}
-
 int gsr_cursor_init(gsr_cursor *self, gsr_egl *egl, Display *display) {
     int x_fixes_error_base = 0;
 
@@ -108,31 +86,11 @@ int gsr_cursor_init(gsr_cursor *self, gsr_egl *egl, Display *display) {
         return -1;
     }
 
-    if(!xinput_is_supported(self->display, &self->xi_opcode)) {
-        gsr_cursor_deinit(self);
-        return -1;
-    }
-
-    unsigned char mask[XIMaskLen(XI_LASTEVENT)];
-    memset(mask, 0, sizeof(mask));
-    XISetMask(mask, XI_RawMotion);
-
-    XIEventMask xi_masks;
-    xi_masks.deviceid = XIAllMasterDevices;
-    xi_masks.mask_len = sizeof(mask);
-    xi_masks.mask = mask;
-    if(XISelectEvents(self->display, DefaultRootWindow(self->display), &xi_masks, 1) != Success) {
-        fprintf(stderr, "gsr error: gsr_cursor_init: XISelectEvents failed\n");
-        gsr_cursor_deinit(self);
-        return -1;
-    }
-
     self->egl->glGenTextures(1, &self->texture_id);
 
     XFixesSelectCursorInput(self->display, DefaultRootWindow(self->display), XFixesDisplayCursorNotifyMask);
     gsr_cursor_set_from_x11_cursor_image(self, XFixesGetCursorImage(self->display), &self->visible);
     self->cursor_image_set = true;
-    self->cursor_moved = true;
 
     return 0;
 }
@@ -146,10 +104,8 @@ void gsr_cursor_deinit(gsr_cursor *self) {
         self->texture_id = 0;
     }
 
-    if(self->display) {
-        XISelectEvents(self->display, DefaultRootWindow(self->display), NULL, 0);
+    if(self->display)
         XFixesSelectCursorInput(self->display, DefaultRootWindow(self->display), 0);
-    }
 
     self->display = NULL;
     self->egl = NULL;
@@ -157,14 +113,6 @@ void gsr_cursor_deinit(gsr_cursor *self) {
 
 bool gsr_cursor_on_event(gsr_cursor *self, XEvent *xev) {
     bool updated = false;
-    XGenericEventCookie *cookie = (XGenericEventCookie*)&xev->xcookie;
-    const Bool got_event_data = XGetEventData(self->display, cookie);
-    if(got_event_data && cookie->type == GenericEvent && cookie->extension == self->xi_opcode && cookie->evtype == XI_RawMotion) {
-        updated = true;
-        self->cursor_moved = true;
-    }
-    if(got_event_data)
-        XFreeEventData(self->display, cookie);
 
     if(xev->type == self->x_fixes_event_base + XFixesCursorNotify) {
         XFixesCursorNotifyEvent *cursor_notify_event = (XFixesCursorNotifyEvent*)xev;
@@ -183,11 +131,6 @@ bool gsr_cursor_on_event(gsr_cursor *self, XEvent *xev) {
 }
 
 void gsr_cursor_tick(gsr_cursor *self, Window relative_to) {
-    if(!self->cursor_moved)
-        return;
-
-    self->cursor_moved = false;
-
     Window dummy_window;
     int dummy_i;
     unsigned int dummy_u;