[spice-gtk v2 1/2] Deprecate “color-depth” properties

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From: Victor Toso <me@xxxxxxxxxxxxxx>

With commit 1a980f3712 we deprecated some command line options. The
color-depth one is the only one which is not used for testing/debug
purposes.

The intention of this option is to set guest's video driver color
configuration, currently only windows guest agent uses this feature up
to Windows 7. Windows 8 and up, setting color depth below 32 would
fail. We should not encourage the usage of this feature.

Related: https://bugzilla.redhat.com/show_bug.cgi?id=1543538
Related: https://bugzilla.redhat.com/show_bug.cgi?id=1350853

This patch deprecates both SpiceMainChannel::color-depth and
SpiceSession::color-depth while ignoring any set/get to it.

Signed-off-by: Victor Toso <victortoso@xxxxxxxxxx>
Acked-by: Christophe Fergeau <cfergeau@xxxxxxxxxx>
---
 src/channel-main.c  | 26 +++++++++++++-------------
 src/spice-session.c | 12 +++++++-----
 2 files changed, 20 insertions(+), 18 deletions(-)

diff --git a/src/channel-main.c b/src/channel-main.c
index 4c6bc70..02e2ffd 100644
--- a/src/channel-main.c
+++ b/src/channel-main.c
@@ -89,7 +89,6 @@ struct _SpiceMainChannelPrivate  {
     bool                        agent_caps_received;
 
     gboolean                    agent_display_config_sent;
-    guint8                      display_color_depth;
     gboolean                    display_disable_wallpaper:1;
     gboolean                    display_disable_font_smooth:1;
     gboolean                    display_disable_animation:1;
@@ -298,7 +297,8 @@ static void spice_main_get_property(GObject    *object,
         g_value_set_boolean(value, c->display_disable_animation);
         break;
     case PROP_DISPLAY_COLOR_DEPTH:
-        g_value_set_uint(value, c->display_color_depth);
+        spice_info("SpiceMainChannel::color-depth has been deprecated. Property is ignored");
+        g_value_set_uint(value, 32);
         break;
     case PROP_DISABLE_DISPLAY_POSITION:
         g_value_set_boolean(value, c->disable_display_position);
@@ -331,12 +331,9 @@ static void spice_main_set_property(GObject *gobject, guint prop_id,
     case PROP_DISPLAY_DISABLE_ANIMATION:
         c->display_disable_animation = g_value_get_boolean(value);
         break;
-    case PROP_DISPLAY_COLOR_DEPTH: {
-        guint color_depth = g_value_get_uint(value);
-        g_return_if_fail(color_depth % 8 == 0);
-        c->display_color_depth = color_depth;
+    case PROP_DISPLAY_COLOR_DEPTH:
+        spice_info("SpiceMainChannel::color-depth has been deprecated. Property is ignored");
         break;
-    }
     case PROP_DISABLE_DISPLAY_POSITION:
         c->disable_display_position = g_value_get_boolean(value);
         break;
@@ -551,11 +548,19 @@ static void spice_main_channel_class_init(SpiceMainChannelClass *klass)
                               G_PARAM_CONSTRUCT |
                               G_PARAM_STATIC_STRINGS));
 
+    /**
+     * SpiceMainChannel:color-depth:
+     *
+     * Deprecated: 0.36: Deprecated due to lack of support in drivers, only Windows 7 and older.
+     * This option is currently ignored.
+     *
+     **/
     g_object_class_install_property
         (gobject_class, PROP_DISPLAY_COLOR_DEPTH,
          g_param_spec_uint("color-depth",
                            "Color depth",
                            "Color depth", 0, 32, 0,
+                           G_PARAM_DEPRECATED |
                            G_PARAM_READWRITE |
                            G_PARAM_CONSTRUCT |
                            G_PARAM_STATIC_STRINGS));
@@ -1138,7 +1143,7 @@ gboolean spice_main_channel_send_monitor_config(SpiceMainChannel *channel)
                 j++;
             continue;
         }
-        mon->monitors[j].depth  = c->display_color_depth ? c->display_color_depth : 32;
+        mon->monitors[j].depth  = 32;
         mon->monitors[j].width  = c->display[i].width;
         mon->monitors[j].height = c->display[i].height;
         mon->monitors[j].x = c->display[i].x;
@@ -1302,11 +1307,6 @@ static void agent_display_config(SpiceMainChannel *channel)
         config.flags |= VD_AGENT_DISPLAY_CONFIG_FLAG_DISABLE_ANIMATION;
     }
 
-    if (c->display_color_depth != 0) {
-        config.flags |= VD_AGENT_DISPLAY_CONFIG_FLAG_SET_COLOR_DEPTH;
-        config.depth = c->display_color_depth;
-    }
-
     CHANNEL_DEBUG(channel, "display_config: flags: %u, depth: %u", config.flags, config.depth);
 
     agent_msg_queue(channel, VD_AGENT_DISPLAY_CONFIG, sizeof(VDAgentDisplayConfig), &config);
diff --git a/src/spice-session.c b/src/spice-session.c
index 7ea1c21..682c3d9 100644
--- a/src/spice-session.c
+++ b/src/spice-session.c
@@ -83,7 +83,6 @@ struct _SpiceSessionPrivate {
 
     GStrv             disable_effects;
     GStrv             secure_channels;
-    gint              color_depth;
 
     int               connection_id;
     int               protocol;
@@ -668,7 +667,8 @@ static void spice_session_get_property(GObject    *gobject,
         g_value_set_boxed(value, s->secure_channels);
         break;
     case PROP_COLOR_DEPTH:
-        g_value_set_int(value, s->color_depth);
+        spice_info("SpiceSession::color-depth has been deprecated. Property is ignored");
+        g_value_set_int(value, 0);
         break;
     case PROP_AUDIO:
         g_value_set_boolean(value, s->audio);
@@ -808,7 +808,7 @@ static void spice_session_set_property(GObject      *gobject,
         s->secure_channels = g_value_dup_boxed(value);
         break;
     case PROP_COLOR_DEPTH:
-        s->color_depth = g_value_get_int(value);
+        spice_info("SpiceSession::color-depth has been deprecated. Property is ignored");
         break;
     case PROP_AUDIO:
         s->audio = g_value_get_boolean(value);
@@ -1106,6 +1106,9 @@ static void spice_session_class_init(SpiceSessionClass *klass)
      * Display color depth to set on new display channels. If 0, don't set.
      *
      * Since: 0.7
+     *
+     * Deprecated: 0.36: Deprecated due to lack of support in drivers, only Windows 7 and older.
+     * This option is currently ignored.
      **/
     g_object_class_install_property
         (gobject_class, PROP_COLOR_DEPTH,
@@ -1113,6 +1116,7 @@ static void spice_session_class_init(SpiceSessionClass *klass)
                           "Color depth",
                           "Display channel color depth",
                           0, 32, 0,
+                          G_PARAM_DEPRECATED |
                           G_PARAM_READWRITE |
                           G_PARAM_STATIC_STRINGS));
 
@@ -2224,8 +2228,6 @@ void spice_session_channel_new(SpiceSession *session, SpiceChannel *channel)
                      "disable-font-smooth", all || spice_strv_contains(s->disable_effects, "font-smooth"),
                      "disable-animation", all || spice_strv_contains(s->disable_effects, "animation"),
                      NULL);
-        if (s->color_depth != 0)
-            g_object_set(channel, "color-depth", s->color_depth, NULL);
 
         CHANNEL_DEBUG(channel, "new main channel, switching");
         s->cmain = channel;
-- 
2.19.2

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