From 32918099d3f57453bce481e16b0e2cc948320258 Mon Sep 17 00:00:00 2001
From: Jeffy Chen <jeffy.chen@rock-chips.com>
Date: Thu, 15 Sep 2022 18:18:07 +0800
Subject: [PATCH 39/48] kmssink: Support fullscreen prop

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
---
 sys/kms/gstkmssink.c | 25 +++++++++++++++++++++++++
 sys/kms/gstkmssink.h |  1 +
 2 files changed, 26 insertions(+)

diff --git a/sys/kms/gstkmssink.c b/sys/kms/gstkmssink.c
index c2a889d..5b2ae38 100644
--- a/sys/kms/gstkmssink.c
+++ b/sys/kms/gstkmssink.c
@@ -108,6 +108,7 @@ enum
   PROP_SKIP_VSYNC,
   PROP_FORCE_ASPECT_RATIO,
   PROP_SYNC_MODE,
+  PROP_FULLSCREEN,
   PROP_N,
 };
 
@@ -2308,6 +2309,19 @@ retry_set_plane:
   src.w = video_width;
   src.h = video_height;
 
+  if (self->fullscreen) {
+    if (!self->can_scale &&
+        (src.w != self->hdisplay || src.h != self->vdisplay)) {
+      GST_WARNING_OBJECT (self, "unable to scale to fullscreen");
+      self->fullscreen = FALSE;
+      goto retry_set_plane;
+    }
+
+    result.x = result.y = 0;
+    result.w = self->hdisplay;
+    result.h = self->vdisplay;
+  }
+
   /* handle out of screen case */
   if ((result.x + result.w) > self->hdisplay)
     result.w = self->hdisplay - result.x;
@@ -2583,6 +2597,9 @@ gst_kms_sink_set_property (GObject * object, guint prop_id,
     case PROP_SYNC_MODE:
       sink->sync_mode = g_value_get_enum (value);
       break;
+    case PROP_FULLSCREEN:
+      sink->fullscreen = g_value_get_boolean (value);
+      break;
     default:
       if (!gst_video_overlay_set_property (object, PROP_N, prop_id, value))
         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
@@ -2648,6 +2665,9 @@ gst_kms_sink_get_property (GObject * object, guint prop_id,
     case PROP_SYNC_MODE:
       g_value_set_enum (value, sink->sync_mode);
       break;
+    case PROP_FULLSCREEN:
+      g_value_set_boolean (value, sink->fullscreen);
+      break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
       break;
@@ -2922,6 +2942,11 @@ gst_kms_sink_class_init (GstKMSSinkClass * klass)
       GST_TYPE_KMS_SYNC_MODE, DEFAULT_SYNC_MODE,
       G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
 
+  g_properties[PROP_FULLSCREEN] =
+      g_param_spec_boolean ("fullscreen", "Fullscreen",
+      "Force showing fullscreen", FALSE,
+      G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
+
   g_object_class_install_properties (gobject_class, PROP_N, g_properties);
 
   gst_video_overlay_install_properties (gobject_class, PROP_N);
diff --git a/sys/kms/gstkmssink.h b/sys/kms/gstkmssink.h
index 0d3374d..5c4065a 100644
--- a/sys/kms/gstkmssink.h
+++ b/sys/kms/gstkmssink.h
@@ -124,6 +124,7 @@ struct _GstKMSSink {
   guintptr window_handle;
 
   gboolean keep_aspect;
+  gboolean fullscreen;
 
   GstKMSSyncMode sync_mode;
 };
-- 
2.20.1