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w32_common: generate MP_AXIS_* keycodes for scrolling 

Windows doesn't have a way to distinguish "precise" mouse wheel events
and events from regular notched mouse wheels. A notched wheel should
always send events with a delta of 120, but a precise wheel could also
happen to send 120 if multiple scroll events are coalesced (and to make
things even harder, some buggy Microsoft drivers send deltas less than
120, even for notched wheels.) Since there is no distinction, but
MP_AXIS_* keycodes can hold more information (the delta value,) send
MP_AXIS_* events for both kinds of mouse wheel scrolling.
This commit is contained in:
James Ross-Gowan 2017-04-25 22:58:18 +10:00
parent 89fd3e1d9d
commit 18a45a42d5
1 changed files with 18 additions and 8 deletions
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26
video/out/w32_common.c
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@ -428,6 +428,16 @@ static void handle_mouse_up(struct vo_w32_state *w32, int btn)
ReleaseCapture();
}
static void handle_mouse_wheel(struct vo_w32_state *w32, bool horiz, int val)
{
int code;
if (horiz)
code = val > 0 ? MP_AXIS_RIGHT : MP_AXIS_LEFT;
else
code = val > 0 ? MP_AXIS_UP : MP_AXIS_DOWN;
mp_input_put_axis(w32->input_ctx, code | mod_state(w32), abs(val) / 120.);
}
static void signal_events(struct vo_w32_state *w32, int events)
{
atomic_fetch_or(&w32->event_flags, events);
@ -1077,14 +1087,14 @@ static LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam,
case WM_RBUTTONUP:
handle_mouse_up(w32, MP_MOUSE_BTN2);
break;
case WM_MOUSEWHEEL: {
int x = GET_WHEEL_DELTA_WPARAM(wParam);
mp_input_put_key(w32->input_ctx,
(x > 0 ? MP_MOUSE_BTN3 : MP_MOUSE_BTN4) |
mod_state(w32));
ReleaseCapture();
break;
}
case WM_MOUSEWHEEL:
handle_mouse_wheel(w32, false, GET_WHEEL_DELTA_WPARAM(wParam));
return 0;
case WM_MOUSEHWHEEL:
handle_mouse_wheel(w32, true, GET_WHEEL_DELTA_WPARAM(wParam));
// Some buggy mouse drivers (SetPoint) stop delivering WM_MOUSEHWHEEL
// events when the message loop doesn't return TRUE (even on Windows 7)
return TRUE;
case WM_XBUTTONDOWN:
handle_mouse_down(w32,
HIWORD(wParam) == 1 ? MP_MOUSE_BTN5 : MP_MOUSE_BTN6,