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[client] spice: detect end of warp based on serial and x & y match

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x11 serials are per server command, not per event, as such several
events may be processed by the server before a new event is received
causing the existing logic to fail. This changes the logic to check for
a larger serial instead of an exact match, and confirms the completion
of the warp by matching the target x/y.
This commit is contained in:
Geoffrey McRae 2021-01-08 00:07:43 +11:00
parent d6bb518992
commit 27a5a0811b
1 changed files with 18 additions and 39 deletions
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57
client/src/main.c
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@ -80,12 +80,8 @@ struct AppParams params = { 0 };
struct WarpInfo
{
int x, y;
union
{
unsigned long serial;
SDL_Point p;
};
SDL_Point from, to;
unsigned long serial;
};
static void handleMouseMoveEvent(int ex, int ey);
@ -793,8 +789,10 @@ static void warpMouse(int x, int y, bool disable)
g_cursor.warpState = WARP_STATE_OFF;
struct WarpInfo * warp = malloc(sizeof(struct WarpInfo));
warp->x = g_cursor.pos.x;
warp->y = g_cursor.pos.y;
warp->from.x = g_cursor.pos.x;
warp->from.y = g_cursor.pos.y;
warp->to.x = x;
warp->to.y = y;
if (g_state.wminfo.subsystem == SDL_SYSWM_X11)
{
@ -810,8 +808,7 @@ static void warpMouse(int x, int y, bool disable)
}
else
{
warp->p.x = x;
warp->p.y = y;
warp->serial = 0;
ll_push(g_cursor.warpList, warp);
SDL_WarpMouseInWindow(g_state.window, x, y);
}
@ -1070,34 +1067,17 @@ static void keyboardUngrab()
);
}
static void processWarp(int x, int y)
static void processWarp(int serial, int x, int y)
{
struct WarpInfo * warp;
if (!ll_peek_head(g_cursor.warpList, (void **)&warp) ||
warp->p.x != x || warp->p.y != y)
serial < warp->serial || warp->to.x != x || warp->to.y != y)
return;
ll_shift(g_cursor.warpList, NULL);
g_cursor.pos.x = x + (warp->x - g_cursor.pos.x);
g_cursor.pos.y = y + (warp->y - g_cursor.pos.y);
free(warp);
if (ll_count(g_cursor.warpList) == 0 && g_cursor.inWindow)
g_cursor.warpState = WARP_STATE_ON;
}
static void processXWarp(const XEvent xe, int x, int y)
{
struct WarpInfo * warp;
if (!ll_peek_head(g_cursor.warpList, (void **)&warp) ||
xe.xany.serial != warp->serial)
return;
ll_shift(g_cursor.warpList, NULL);
g_cursor.pos.x = x + (warp->x - g_cursor.pos.x);
g_cursor.pos.y = y + (warp->y - g_cursor.pos.y);
g_cursor.pos.x = x + (warp->from.x - g_cursor.pos.x);
g_cursor.pos.y = y + (warp->from.y - g_cursor.pos.y);
free(warp);
if (ll_count(g_cursor.warpList) == 0 && g_cursor.inWindow)
@ -1195,7 +1175,7 @@ int eventFilter(void * userdata, SDL_Event * event)
const int x = round(device->event_x);
const int y = round(device->event_y);
processXWarp(xe, x, y);
processWarp(xe.xany.serial, x, y);
handleMouseMoveEvent(x, y);
break;
}
@ -1205,7 +1185,7 @@ int eventFilter(void * userdata, SDL_Event * event)
* motion events when a button is held */
case MotionNotify:
{
processXWarp(xe, xe.xmotion.x, xe.xmotion.y);
processWarp(xe.xany.serial, xe.xmotion.x, xe.xmotion.y);
handleMouseMoveEvent(xe.xmotion.x, xe.xmotion.y);
break;
}
@ -1213,25 +1193,25 @@ int eventFilter(void * userdata, SDL_Event * event)
/* key press/release events can be the end of a warp also */
case KeyPress:
case KeyRelease:
processXWarp(xe, xe.xkey.x, xe.xkey.y);
processWarp(xe.xany.serial, xe.xkey.x, xe.xkey.y);
break;
/* button press/release events can be the end of a warp also */
case ButtonPress:
case ButtonRelease:
processXWarp(xe, xe.xbutton.x, xe.xbutton.y);
processWarp(xe.xany.serial, xe.xbutton.x, xe.xbutton.y);
break;
case EnterNotify:
{
handleWindowEnter();
processXWarp(xe, xe.xcrossing.x, xe.xcrossing.y);
processWarp(xe.xany.serial, xe.xcrossing.x, xe.xcrossing.y);
break;
}
case LeaveNotify:
{
processXWarp(xe, xe.xcrossing.x, xe.xcrossing.y);
processWarp(xe.xany.serial, xe.xcrossing.x, xe.xcrossing.y);
if (xe.xcrossing.mode != NotifyNormal)
break;
@ -1282,8 +1262,7 @@ int eventFilter(void * userdata, SDL_Event * event)
if (g_state.wminfo.subsystem == SDL_SYSWM_X11)
break;
/* detect and filter out warp events */
processWarp(event->motion.x, event->motion.y);
processWarp(0, event->motion.x, event->motion.y);
handleMouseMoveEvent(event->motion.x, event->motion.y);
break;
}