From 975430378d792612f14f6b6bf61951eccfceda4d Mon Sep 17 00:00:00 2001
|
From: Jeffy Chen <jeffy.chen@rock-chips.com>
|
Date: Tue, 28 Dec 2021 14:06:19 +0800
|
Subject: [PATCH 28/40] waylandsink: Support window alpha property
|
|
Tested with:
|
gst-launch-1.0 videotestsrc ! waylandsink alpha=0.5
|
|
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
|
---
|
ext/wayland/gstwaylandsink.c | 32 ++++++++++++++++++++++++++++++++
|
ext/wayland/gstwaylandsink.h | 1 +
|
ext/wayland/wlwindow.c | 23 ++++++++++++++++-------
|
ext/wayland/wlwindow.h | 1 +
|
4 files changed, 50 insertions(+), 7 deletions(-)
|
|
diff --git a/ext/wayland/gstwaylandsink.c b/ext/wayland/gstwaylandsink.c
|
index 984aaf3..cec28f2 100644
|
--- a/ext/wayland/gstwaylandsink.c
|
+++ b/ext/wayland/gstwaylandsink.c
|
@@ -65,6 +65,7 @@ enum
|
PROP_DISPLAY,
|
PROP_FULLSCREEN,
|
PROP_LAYER,
|
+ PROP_ALPHA,
|
PROP_LAST
|
};
|
|
@@ -236,6 +237,11 @@ gst_wayland_sink_class_init (GstWaylandSinkClass * klass)
|
GST_TYPE_WL_WINDOW_LAYER, GST_WL_WINDOW_LAYER_NORMAL,
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
+ g_object_class_install_property (gobject_class, PROP_ALPHA,
|
+ g_param_spec_double ("alpha", "Window alpha",
|
+ "Wayland window alpha", 0.0, 1.0, 1.0,
|
+ G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
|
+
|
gst_video_overlay_install_properties (gobject_class, PROP_LAST);
|
|
gst_type_mark_as_plugin_api (GST_TYPE_WAYLAND_VIDEO, 0);
|
@@ -249,6 +255,7 @@ gst_wayland_sink_init (GstWaylandSink * sink)
|
|
sink->window_handle = 1;
|
sink->layer = GST_WL_WINDOW_LAYER_NORMAL;
|
+ sink->alpha = 1.0;
|
}
|
|
static void
|
@@ -275,6 +282,18 @@ gst_wayland_sink_set_layer (GstWaylandSink * sink, GstWlWindowLayer layer)
|
g_mutex_unlock (&sink->render_lock);
|
}
|
|
+static void
|
+gst_wayland_sink_set_alpha (GstWaylandSink * sink, gdouble alpha)
|
+{
|
+ if (alpha == sink->alpha)
|
+ return;
|
+
|
+ g_mutex_lock (&sink->render_lock);
|
+ sink->alpha = alpha;
|
+ gst_wl_window_ensure_alpha (sink->window, alpha);
|
+ g_mutex_unlock (&sink->render_lock);
|
+}
|
+
|
static void
|
gst_wayland_sink_get_property (GObject * object,
|
guint prop_id, GValue * value, GParamSpec * pspec)
|
@@ -297,6 +316,11 @@ gst_wayland_sink_get_property (GObject * object,
|
g_value_set_enum (value, sink->layer);
|
GST_OBJECT_UNLOCK (sink);
|
break;
|
+ case PROP_ALPHA:
|
+ GST_OBJECT_LOCK (sink);
|
+ g_value_set_double (value, sink->alpha);
|
+ GST_OBJECT_UNLOCK (sink);
|
+ break;
|
default:
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
break;
|
@@ -325,6 +349,11 @@ gst_wayland_sink_set_property (GObject * object,
|
gst_wayland_sink_set_layer (sink, g_value_get_enum (value));
|
GST_OBJECT_UNLOCK (sink);
|
break;
|
+ case PROP_ALPHA:
|
+ GST_OBJECT_LOCK (sink);
|
+ gst_wayland_sink_set_alpha (sink, g_value_get_double (value));
|
+ GST_OBJECT_UNLOCK (sink);
|
+ break;
|
default:
|
if (!gst_video_overlay_set_property (object, PROP_LAST, prop_id, value))
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
@@ -781,6 +810,8 @@ gst_wayland_sink_show_frame (GstVideoSink * vsink, GstBuffer * buffer)
|
sink->window = gst_wl_window_new_toplevel (sink->display,
|
&sink->video_info, sink->fullscreen, sink->layer,
|
&sink->render_lock, &sink->render_rectangle);
|
+ gst_wl_window_ensure_alpha (sink->window, sink->alpha);
|
+
|
g_signal_connect_object (sink->window, "closed",
|
G_CALLBACK (on_window_closed), sink, 0);
|
}
|
@@ -1033,6 +1064,7 @@ gst_wayland_sink_set_window_handle (GstVideoOverlay * overlay, guintptr handle)
|
} else {
|
sink->window = gst_wl_window_new_in_surface (sink->display, surface,
|
&sink->render_lock);
|
+ gst_wl_window_ensure_alpha (sink->window, sink->alpha);
|
|
if (sink->last_buffer) {
|
/* Resend video info to force resize video surface */
|
diff --git a/ext/wayland/gstwaylandsink.h b/ext/wayland/gstwaylandsink.h
|
index c5fdd50..6fa4de3 100644
|
--- a/ext/wayland/gstwaylandsink.h
|
+++ b/ext/wayland/gstwaylandsink.h
|
@@ -63,6 +63,7 @@ struct _GstWaylandSink
|
GstVideoInfo video_info;
|
gboolean fullscreen;
|
GstWlWindowLayer layer;
|
+ gdouble alpha;
|
|
gchar *display_name;
|
|
diff --git a/ext/wayland/wlwindow.c b/ext/wayland/wlwindow.c
|
index 66924a5..7771def 100644
|
--- a/ext/wayland/wlwindow.c
|
+++ b/ext/wayland/wlwindow.c
|
@@ -24,6 +24,7 @@
|
#include <config.h>
|
#endif
|
|
+#include <stdio.h>
|
#include <stdlib.h>
|
|
#include "wlwindow.h"
|
@@ -237,19 +238,25 @@ gst_wl_window_new_internal (GstWlDisplay * display, GMutex * render_lock)
|
}
|
|
static void
|
-gst_wl_window_set_flags (GstWlWindow * window, const char *flags)
|
+gst_wl_window_set_config (GstWlWindow * window, const char *config)
|
{
|
- /* HACK: set window flags through title */
|
- char s[128] = "flags=";
|
- strcat (s, flags);
|
-
|
+ /* HACK: set window config through title */
|
if (!window)
|
return;
|
|
if (window->xdg_toplevel)
|
- xdg_toplevel_set_title (window->xdg_toplevel, s);
|
+ xdg_toplevel_set_title (window->xdg_toplevel, config);
|
else if (window->wl_shell_surface)
|
- wl_shell_surface_set_title (window->wl_shell_surface, s);
|
+ wl_shell_surface_set_title (window->wl_shell_surface, config);
|
+}
|
+
|
+void
|
+gst_wl_window_ensure_alpha (GstWlWindow * window, gdouble alpha)
|
+{
|
+ char s[128];
|
+
|
+ snprintf (s, sizeof (s), "attrs=alpha:%f;", alpha);
|
+ gst_wl_window_set_config (window, s);
|
}
|
|
void
|
@@ -270,6 +277,8 @@ gst_wl_window_ensure_layer (GstWlWindow * window, GstWlWindowLayer layer)
|
default:
|
return;
|
}
|
+
|
+ gst_wl_window_set_config (window, s);
|
}
|
|
void
|
diff --git a/ext/wayland/wlwindow.h b/ext/wayland/wlwindow.h
|
index 748f2c6..2fcaa98 100644
|
--- a/ext/wayland/wlwindow.h
|
+++ b/ext/wayland/wlwindow.h
|
@@ -88,6 +88,7 @@ typedef enum
|
GST_WL_WINDOW_LAYER_BOTTOM = 2,
|
} GstWlWindowLayer;
|
|
+void gst_wl_window_ensure_alpha (GstWlWindow * window, gdouble alpha);
|
void gst_wl_window_ensure_layer (GstWlWindow * window,
|
GstWlWindowLayer layer);
|
void gst_wl_window_ensure_fullscreen (GstWlWindow * window,
|
--
|
2.17.1
|
