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d3d11: implement mouse wheel events

Browse source 
Adittion of d3d11 support for WM_MOUSEWHEEL and WM_MOUSEHWHEEL events,
which are triggered when the mouse is scrolled vertically or horizontally
respectively.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7705>
This commit is contained in:
Pablo García 2024-10-21 13:32:03 +02:00 committed by GStreamer Marge Bot
parent ba94af0285
commit 6bbddc683d
4 changed files with 79 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

23
subprojects/gst-plugins-bad/sys/d3d11/gstd3d11videosink.cpp
View file

@ -1212,6 +1212,27 @@ gst_d3d11_video_sink_mouse_event (GstD3D11Window * window, const gchar * event,
gst_navigation_send_event_simple (GST_NAVIGATION (self), mouse_event);
}
static void
gst_d3d11_video_sink_mouse_scroll_event (GstD3D11Window * window,
const gchar * event, gdouble x, gdouble y, gint delta_x, gint delta_y,
guint modifier, GstD3D11VideoSink * self)
{
GstEvent *mouse_event;
if (!self->enable_navigation_events || !event)
return;
GST_LOG_OBJECT (self, "send mouse scroll event %s,", event);
if (g_strcmp0 ("mouse-scroll", event) == 0) {
mouse_event = gst_navigation_event_new_mouse_scroll (x, y, delta_x,
delta_y, (GstNavigationModifierType) modifier);
} else {
return;
}
gst_navigation_send_event_simple (GST_NAVIGATION (self), mouse_event);
}
static void
gst_d3d11_video_sink_present (GstD3D11Window * window, GstD3D11Device * device,
ID3D11RenderTargetView * rtv, GstD3D11VideoSink * self)
@ -1329,6 +1350,8 @@ done:
G_CALLBACK (gst_d3d11_video_sink_key_event), self);
g_signal_connect (self->window, "mouse-event",
G_CALLBACK (gst_d3d11_video_sink_mouse_event), self);
g_signal_connect (self->window, "mouse-scroll-event",
G_CALLBACK (gst_d3d11_video_sink_mouse_scroll_event), self);
g_signal_connect (self->window, "present",
G_CALLBACK (gst_d3d11_video_sink_present), self);

21
subprojects/gst-plugins-bad/sys/d3d11/gstd3d11window.cpp
View file

@ -67,6 +67,7 @@ enum
{
SIGNAL_KEY_EVENT,
SIGNAL_MOUSE_EVENT,
SIGNAL_MOUSE_SCROLL_EVENT,
SIGNAL_PRESENT,
SIGNAL_LAST
};
@ -181,6 +182,12 @@ gst_d3d11_window_class_init (GstD3D11WindowClass * klass)
G_TYPE_NONE, 5, G_TYPE_STRING, G_TYPE_INT, G_TYPE_DOUBLE, G_TYPE_DOUBLE,
G_TYPE_UINT);
d3d11_window_signals[SIGNAL_MOUSE_SCROLL_EVENT] =
g_signal_new ("mouse-scroll-event", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL,
G_TYPE_NONE, 6, G_TYPE_STRING, G_TYPE_DOUBLE, G_TYPE_DOUBLE,
G_TYPE_INT, G_TYPE_INT, G_TYPE_UINT);
d3d11_window_signals[SIGNAL_PRESENT] =
g_signal_new ("present", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, 0, nullptr, nullptr, nullptr,
@ -571,6 +578,20 @@ gst_d3d11_window_on_mouse_event (GstD3D11Window * window, const gchar * event,
event, button, x, y, modifier);
}
void
gst_d3d11_window_on_mouse_scroll_event (GstD3D11Window * window,
const gchar * event, gdouble x, gdouble y, gint delta_x, gint delta_y,
guint modifier)
{
g_return_if_fail (GST_IS_D3D11_WINDOW (window));
if (!window->enable_navigation_events)
return;
g_signal_emit (window, d3d11_window_signals[SIGNAL_MOUSE_SCROLL_EVENT], 0,
event, x, y, delta_x, delta_y, modifier);
}
typedef struct
{
DXGI_FORMAT dxgi_format;

8
subprojects/gst-plugins-bad/sys/d3d11/gstd3d11window.h
View file

@ -235,6 +235,14 @@ void gst_d3d11_window_on_mouse_event (GstD3D11Window * window,
gdouble y,
guint modifier);
void gst_d3d11_window_on_mouse_scroll_event (GstD3D11Window * window,
const gchar * event,
gdouble x,
gdouble y,
gint delta_x,
gint delta_y,
guint modifier);
/* utils */
GstD3D11WindowNativeType gst_d3d11_window_get_native_type_from_handle (guintptr handle);

24
subprojects/gst-plugins-bad/sys/d3d11/gstd3d11window_win32.cpp
View file

@ -733,6 +733,8 @@ gst_d3d11_window_win32_on_mouse_event (GstD3D11WindowWin32 * self,
gint button;
const gchar *event = nullptr;
guint modifier = 0;
gint delta_x = 0, delta_y = 0;
POINT screen_point = { 0, 0 };
if (!window->enable_navigation_events)
return;
@ -778,6 +780,16 @@ gst_d3d11_window_win32_on_mouse_event (GstD3D11WindowWin32 * self,
button = 3;
event = "mouse-double-click";
break;
case WM_MOUSEHWHEEL:
button = 0;
event = "mouse-scroll";
delta_x = GET_WHEEL_DELTA_WPARAM (wParam);
break;
case WM_MOUSEWHEEL:
button = 0;
event = "mouse-scroll";
delta_y = GET_WHEEL_DELTA_WPARAM (wParam);
break;
default:
return;
}
@ -793,9 +805,19 @@ gst_d3d11_window_win32_on_mouse_event (GstD3D11WindowWin32 * self,
if ((wParam & MK_SHIFT) != 0)
modifier |= GST_NAVIGATION_MODIFIER_SHIFT_MASK;
if (uMsg == WM_MOUSEHWHEEL || uMsg == WM_MOUSEWHEEL) {
screen_point.x = GET_X_LPARAM (lParam);
screen_point.y = GET_Y_LPARAM (lParam);
ScreenToClient (hWnd, &screen_point);
gst_d3d11_window_on_mouse_scroll_event (window, event,
(gdouble) screen_point.x, (gdouble) screen_point.y,
delta_x, delta_y, modifier);
} else {
gst_d3d11_window_on_mouse_event (window,
event, button, (gdouble) GET_X_LPARAM (lParam),
(gdouble) GET_Y_LPARAM (lParam), modifier);
}
}
static void
@ -831,6 +853,8 @@ gst_d3d11_window_win32_handle_window_proc (GstD3D11WindowWin32 * self,
case WM_LBUTTONDBLCLK:
case WM_RBUTTONDBLCLK:
case WM_MBUTTONDBLCLK:
case WM_MOUSEWHEEL:
case WM_MOUSEHWHEEL:
gst_d3d11_window_win32_on_mouse_event (self, hWnd, uMsg, wParam, lParam);
break;
case WM_SYSKEYDOWN: