[mutter] clutter: Remove unused deprecated code from clutter-actor-deprecated.c

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 53319a121f5eee3bb1e944fe39cc3fa9c4b0b9d1
Author: Adam Jackson <ajax redhat com>
Date:   Wed Feb 20 11:53:18 2019 -0500

    clutter: Remove unused deprecated code from clutter-actor-deprecated.c
    
    Since clutter_actor_set_shader() is never called, none of this has any
    effect.
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/452

 clutter/clutter/clutter-actor.c                    |  23 +-
 .../clutter/deprecated/clutter-actor-deprecated.c  | 364 ---------------------
 clutter/clutter/deprecated/clutter-actor.h         |   7 -
 clutter/clutter/deprecated/clutter-shader.h        |  24 --
 clutter/clutter/deprecated/clutter-texture.c       |  16 -
 5 files changed, 1 insertion(+), 433 deletions(-)
---
diff --git a/clutter/clutter/clutter-actor.c b/clutter/clutter/clutter-actor.c
index c11bb4cb6..7e41c1a85 100644
--- a/clutter/clutter/clutter-actor.c
+++ b/clutter/clutter/clutter-actor.c
@@ -1109,7 +1109,6 @@ static void clutter_actor_pop_in_cloned_branch (ClutterActor *self,
   { _transform; }                                                      \
   cogl_matrix_translate ((m), -_tx, -_ty, -_tz);        } G_STMT_END
 
-static GQuark quark_shader_data = 0;
 static GQuark quark_actor_layout_info = 0;
 static GQuark quark_actor_transform_info = 0;
 static GQuark quark_actor_animation_info = 0;
@@ -3566,12 +3565,6 @@ _clutter_actor_update_last_paint_volume (ClutterActor *self)
   priv->last_paint_volume_valid = TRUE;
 }
 
-static inline gboolean
-actor_has_shader_data (ClutterActor *self)
-{
-  return g_object_get_qdata (G_OBJECT (self), quark_shader_data) != NULL;
-}
-
 guint32
 _clutter_actor_get_pick_id (ClutterActor *self)
 {
@@ -3813,7 +3806,6 @@ clutter_actor_paint (ClutterActor *self)
   ClutterActorPrivate *priv;
   ClutterPickMode pick_mode;
   gboolean clip_set = FALSE;
-  gboolean shader_applied = FALSE;
   ClutterStage *stage;
 
   g_return_if_fail (CLUTTER_IS_ACTOR (self));
@@ -3983,25 +3975,13 @@ clutter_actor_paint (ClutterActor *self)
     }
 
   if (priv->effects == NULL)
-    {
-      if (pick_mode == CLUTTER_PICK_NONE &&
-          actor_has_shader_data (self))
-        {
-          _clutter_actor_shader_pre_paint (self, FALSE);
-          shader_applied = TRUE;
-        }
-
-      priv->next_effect_to_paint = NULL;
-    }
+    priv->next_effect_to_paint = NULL;
   else
     priv->next_effect_to_paint =
       _clutter_meta_group_peek_metas (priv->effects);
 
   clutter_actor_continue_paint (self);
 
-  if (shader_applied)
-    _clutter_actor_shader_post_paint (self);
-
   if (G_UNLIKELY (clutter_paint_debug_flags & CLUTTER_DEBUG_PAINT_VOLUMES &&
                   pick_mode == CLUTTER_PICK_NONE))
     _clutter_actor_draw_paint_volume (self);
@@ -6342,7 +6322,6 @@ clutter_actor_class_init (ClutterActorClass *klass)
 {
   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 
-  quark_shader_data = g_quark_from_static_string ("-clutter-actor-shader-data");
   quark_actor_layout_info = g_quark_from_static_string ("-clutter-actor-layout-info");
   quark_actor_transform_info = g_quark_from_static_string ("-clutter-actor-transform-info");
   quark_actor_animation_info = g_quark_from_static_string ("-clutter-actor-animation-info");
diff --git a/clutter/clutter/deprecated/clutter-actor-deprecated.c 
b/clutter/clutter/deprecated/clutter-actor-deprecated.c
index 7e56c65a6..85b21bbbd 100644
--- a/clutter/clutter/deprecated/clutter-actor-deprecated.c
+++ b/clutter/clutter/deprecated/clutter-actor-deprecated.c
@@ -9,370 +9,6 @@
 #include "clutter-private.h"
 #include "clutter-shader.h"
 
-typedef struct _ShaderData ShaderData;
-
-struct _ShaderData
-{
-  ClutterShader *shader;
-
-  /* back pointer to the actor */
-  ClutterActor *actor;
-
-  /* list of values that should be set on the shader
-   * before each paint cycle
-   */
-  GHashTable *value_hash;
-};
-
-static void
-shader_value_free (gpointer data)
-{
-  GValue *var = data;
-  g_value_unset (var);
-  g_slice_free (GValue, var);
-}
-
-static void
-destroy_shader_data (gpointer data)
-{
-  ShaderData *shader_data = data;
-
-  if (shader_data == NULL)
-    return;
-
-  if (shader_data->shader != NULL)
-    {
-      g_object_unref (shader_data->shader);
-      shader_data->shader = NULL;
-    }
-
-  if (shader_data->value_hash != NULL)
-    {
-      g_hash_table_destroy (shader_data->value_hash);
-      shader_data->value_hash = NULL;
-    }
-
-  g_slice_free (ShaderData, shader_data);
-}
-
-/**
- * clutter_actor_get_shader:
- * @self: a #ClutterActor
- *
- * Queries the currently set #ClutterShader on @self.
- *
- * Return value: (transfer none): The currently set #ClutterShader
- *   or %NULL if no shader is set.
- *
- * Since: 0.6
- *
- * Deprecated: 1.8: Use clutter_actor_get_effect() instead.
- */
-ClutterShader *
-clutter_actor_get_shader (ClutterActor *self)
-{
-  ShaderData *shader_data;
-
-  g_return_val_if_fail (CLUTTER_IS_ACTOR (self), NULL);
-
-  shader_data = g_object_get_data (G_OBJECT (self), "-clutter-actor-shader-data");
-  if (shader_data != NULL)
-    return shader_data->shader;
-
-  return NULL;
-}
-
-/**
- * clutter_actor_set_shader:
- * @self: a #ClutterActor
- * @shader: (allow-none): a #ClutterShader or %NULL to unset the shader.
- *
- * Sets the #ClutterShader to be used when rendering @self.
- *
- * If @shader is %NULL this function will unset any currently set shader
- * for the actor.
- *
- * Any #ClutterEffect applied to @self will take the precedence
- * over the #ClutterShader set using this function.
- *
- * Return value: %TRUE if the shader was successfully applied
- *   or removed
- *
- * Since: 0.6
- *
- * Deprecated: 1.8: Use #ClutterShaderEffect and
- *   clutter_actor_add_effect() instead.
- */
-gboolean
-clutter_actor_set_shader (ClutterActor  *self,
-                          ClutterShader *shader)
-{
-  ShaderData *shader_data;
-
-  g_return_val_if_fail (CLUTTER_IS_ACTOR (self), FALSE);
-  g_return_val_if_fail (shader == NULL || CLUTTER_IS_SHADER (shader), FALSE);
-
-  if (shader != NULL)
-    g_object_ref (shader);
-  else
-    {
-      /* if shader passed in is NULL we destroy the shader */
-      g_object_set_data (G_OBJECT (self), "-clutter-actor-shader-data", NULL);
-      return TRUE;
-    }
-
-  shader_data = g_object_get_data (G_OBJECT (self), "-clutter-actor-shader-data");
-  if (shader_data == NULL)
-    {
-      shader_data = g_slice_new (ShaderData);
-      shader_data->actor = self;
-      shader_data->shader = NULL;
-      shader_data->value_hash =
-        g_hash_table_new_full (g_str_hash, g_str_equal,
-                               g_free,
-                               shader_value_free);
-
-      g_object_set_data_full (G_OBJECT (self), "-clutter-actor-shader-data",
-                              shader_data,
-                              destroy_shader_data);
-    }
-
-  if (shader_data->shader != NULL)
-    g_object_unref (shader_data->shader);
-
-  shader_data->shader = shader;
-
-  clutter_actor_queue_redraw (self);
-
-  return TRUE;
-}
-
-static void
-set_each_param (gpointer key,
-                gpointer value,
-                gpointer user_data)
-{
-  ClutterShader *shader = user_data;
-  const gchar *uniform = key;
-  GValue *var = value;
-
-  clutter_shader_set_uniform (shader, uniform, var);
-}
-
-void
-_clutter_actor_shader_pre_paint (ClutterActor *actor,
-                                 gboolean      repeat)
-{
-  ShaderData *shader_data;
-  ClutterShader *shader;
-
-  shader_data = g_object_get_data (G_OBJECT (actor), "-clutter-actor-shader-data");
-  if (shader_data == NULL)
-    return;
-
-  shader = shader_data->shader;
-  if (shader != NULL)
-    {
-      clutter_shader_set_is_enabled (shader, TRUE);
-
-      g_hash_table_foreach (shader_data->value_hash, set_each_param, shader);
-
-      if (!repeat)
-        _clutter_context_push_shader_stack (actor);
-    }
-}
-
-void
-_clutter_actor_shader_post_paint (ClutterActor *actor)
-{
-  ShaderData *shader_data;
-  ClutterShader *shader;
-
-  shader_data = g_object_get_data (G_OBJECT (actor), "-clutter-actor-shader-data");
-  if (G_LIKELY (shader_data == NULL))
-    return;
-
-  shader = shader_data->shader;
-  if (shader != NULL)
-    {
-      ClutterActor *head;
-
-      clutter_shader_set_is_enabled (shader, FALSE);
-
-      /* remove the actor from the shaders stack; if there is another
-       * actor inside it, then call pre-paint again to set its shader
-       * but this time with the second argument being TRUE, indicating
-       * that we are re-applying an existing shader and thus should it
-       * not be prepended to the stack
-       */
-      head = _clutter_context_pop_shader_stack (actor);
-      if (head != NULL)
-        _clutter_actor_shader_pre_paint (head, TRUE);
-    }
-}
-
-static inline void
-clutter_actor_set_shader_param_internal (ClutterActor *self,
-                                         const gchar  *param,
-                                         const GValue *value)
-{
-  ShaderData *shader_data;
-  GValue *var;
-
-  shader_data = g_object_get_data (G_OBJECT (self), "-clutter-actor-shader-data");
-  if (shader_data == NULL)
-    return;
-
-  var = g_slice_new0 (GValue);
-  g_value_init (var, G_VALUE_TYPE (value));
-  g_value_copy (value, var);
-  g_hash_table_insert (shader_data->value_hash, g_strdup (param), var);
-
-  clutter_actor_queue_redraw (self);
-}
-
-/**
- * clutter_actor_set_shader_param:
- * @self: a #ClutterActor
- * @param: the name of the parameter
- * @value: the value of the parameter
- *
- * Sets the value for a named parameter of the shader applied
- * to @actor.
- *
- * Since: 1.0
- *
- * Deprecated: 1.8: Use clutter_shader_effect_set_uniform_value() instead
- */
-void
-clutter_actor_set_shader_param (ClutterActor *self,
-                                const gchar  *param,
-                                const GValue *value)
-{
-  g_return_if_fail (CLUTTER_IS_ACTOR (self));
-  g_return_if_fail (param != NULL);
-  g_return_if_fail (CLUTTER_VALUE_HOLDS_SHADER_FLOAT (value) ||
-                    CLUTTER_VALUE_HOLDS_SHADER_INT (value) ||
-                    CLUTTER_VALUE_HOLDS_SHADER_MATRIX (value) ||
-                    G_VALUE_HOLDS_FLOAT (value) ||
-                    G_VALUE_HOLDS_INT (value));
-
-  clutter_actor_set_shader_param_internal (self, param, value);
-}
-
-/**
- * clutter_actor_set_shader_param_float:
- * @self: a #ClutterActor
- * @param: the name of the parameter
- * @value: the value of the parameter
- *
- * Sets the value for a named float parameter of the shader applied
- * to @actor.
- *
- * Since: 0.8
- *
- * Deprecated: 1.8: Use clutter_shader_effect_set_uniform() instead
- */
-void
-clutter_actor_set_shader_param_float (ClutterActor *self,
-                                      const gchar  *param,
-                                      gfloat        value)
-{
-  GValue var = { 0, };
-
-  g_value_init (&var, G_TYPE_FLOAT);
-  g_value_set_float (&var, value);
-
-  clutter_actor_set_shader_param_internal (self, param, &var);
-
-  g_value_unset (&var);
-}
-
-/**
- * clutter_actor_set_shader_param_int:
- * @self: a #ClutterActor
- * @param: the name of the parameter
- * @value: the value of the parameter
- *
- * Sets the value for a named int parameter of the shader applied to
- * @actor.
- *
- * Since: 0.8
- *
- * Deprecated: 1.8: Use clutter_shader_effect_set_uniform() instead
- */
-void
-clutter_actor_set_shader_param_int (ClutterActor *self,
-                                    const gchar  *param,
-                                    gint          value)
-{
-  GValue var = { 0, };
-
-  g_value_init (&var, G_TYPE_INT);
-  g_value_set_int (&var, value);
-
-  clutter_actor_set_shader_param_internal (self, param, &var);
-
-  g_value_unset (&var);
-}
-
-/**
- * clutter_actor_set_geometry:
- * @self: A #ClutterActor
- * @geometry: A #ClutterGeometry
- *
- * Sets the actor's fixed position and forces its minimum and natural
- * size, in pixels. This means the untransformed actor will have the
- * given geometry. This is the same as calling clutter_actor_set_position()
- * and clutter_actor_set_size().
- *
- * Deprecated: 1.10: Use clutter_actor_set_position() and
- *   clutter_actor_set_size() instead.
- */
-void
-clutter_actor_set_geometry (ClutterActor          *self,
-                           const ClutterGeometry *geometry)
-{
-  g_object_freeze_notify (G_OBJECT (self));
-
-  clutter_actor_set_position (self, geometry->x, geometry->y);
-  clutter_actor_set_size (self, geometry->width, geometry->height);
-
-  g_object_thaw_notify (G_OBJECT (self));
-}
-
-/**
- * clutter_actor_get_geometry:
- * @self: A #ClutterActor
- * @geometry: (out caller-allocates): A location to store actors #ClutterGeometry
- *
- * Gets the size and position of an actor relative to its parent
- * actor. This is the same as calling clutter_actor_get_position() and
- * clutter_actor_get_size(). It tries to "do what you mean" and get the
- * requested size and position if the actor's allocation is invalid.
- *
- * Deprecated: 1.10: Use clutter_actor_get_position() and
- *   clutter_actor_get_size(), or clutter_actor_get_allocation_geometry()
- *   instead.
- */
-void
-clutter_actor_get_geometry (ClutterActor    *self,
-                           ClutterGeometry *geometry)
-{
-  gfloat x, y, width, height;
-
-  g_return_if_fail (CLUTTER_IS_ACTOR (self));
-  g_return_if_fail (geometry != NULL);
-
-  clutter_actor_get_position (self, &x, &y);
-  clutter_actor_get_size (self, &width, &height);
-
-  geometry->x = (int) x;
-  geometry->y = (int) y;
-  geometry->width = (int) width;
-  geometry->height = (int) height;
-}
-
 /**
  * clutter_actor_get_allocation_geometry:
  * @self: A #ClutterActor
diff --git a/clutter/clutter/deprecated/clutter-actor.h b/clutter/clutter/deprecated/clutter-actor.h
index 6f12ddf4e..f568f5a40 100644
--- a/clutter/clutter/deprecated/clutter-actor.h
+++ b/clutter/clutter/deprecated/clutter-actor.h
@@ -33,13 +33,6 @@
 
 G_BEGIN_DECLS
 
-CLUTTER_DEPRECATED
-void            clutter_actor_set_geometry                      (ClutterActor          *self,
-                                                                 const ClutterGeometry *geometry);
-
-CLUTTER_DEPRECATED_FOR(clutter_actor_get_allocation_geometry)
-void            clutter_actor_get_geometry                      (ClutterActor          *self,
-                                                                 ClutterGeometry       *geometry);
 CLUTTER_DEPRECATED
 guint32         clutter_actor_get_gid                           (ClutterActor          *self);
 
diff --git a/clutter/clutter/deprecated/clutter-shader.h b/clutter/clutter/deprecated/clutter-shader.h
index 2b48fe97b..122801238 100644
--- a/clutter/clutter/deprecated/clutter-shader.h
+++ b/clutter/clutter/deprecated/clutter-shader.h
@@ -153,30 +153,6 @@ CoglHandle            clutter_shader_get_cogl_fragment_shader (ClutterShader
 CLUTTER_DEPRECATED_FOR(ClutterShaderEffect)
 CoglHandle            clutter_shader_get_cogl_vertex_shader   (ClutterShader      *shader);
 
-/* ClutterActor methods */
-
-CLUTTER_DEPRECATED_FOR(clutter_actor_add_effect)
-gboolean              clutter_actor_set_shader                (ClutterActor       *self,
-                                                               ClutterShader      *shader);
-
-CLUTTER_DEPRECATED_FOR(clutter_actor_get_effect)
-ClutterShader *       clutter_actor_get_shader                (ClutterActor       *self);
-
-CLUTTER_DEPRECATED_FOR(clutter_shader_effect_set_uniform_value)
-void                  clutter_actor_set_shader_param          (ClutterActor       *self,
-                                                               const gchar        *param,
-                                                               const GValue       *value);
-
-CLUTTER_DEPRECATED_FOR(clutter_shader_effect_set_uniform)
-void                  clutter_actor_set_shader_param_int      (ClutterActor       *self,
-                                                               const gchar        *param,
-                                                               gint                value);
-
-CLUTTER_DEPRECATED_FOR(clutter_shader_effect_set_uniform)
-void                  clutter_actor_set_shader_param_float    (ClutterActor       *self,
-                                                               const gchar        *param,
-                                                               gfloat              value);
-
 G_END_DECLS
 
 #endif /* __CLUTTER_SHADER_H__ */
diff --git a/clutter/clutter/deprecated/clutter-texture.c b/clutter/clutter/deprecated/clutter-texture.c
index 07e9c3324..171d290df 100644
--- a/clutter/clutter/deprecated/clutter-texture.c
+++ b/clutter/clutter/deprecated/clutter-texture.c
@@ -479,22 +479,10 @@ update_fbo (ClutterActor *self)
 {
   ClutterTexture        *texture = CLUTTER_TEXTURE (self);
   ClutterTexturePrivate *priv = texture->priv;
-  ClutterActor          *head;
-  ClutterShader         *shader = NULL;
   ClutterActor          *stage = NULL;
   CoglMatrix             projection;
   CoglColor              transparent_col;
 
-  head = _clutter_context_peek_shader_stack ();
-  if (head != NULL)
-    shader = clutter_actor_get_shader (head);
-
-  /* Temporarily turn off the shader on the top of the context's
-   * shader stack, to restore the GL pipeline to it's natural state.
-   */
-  if (shader != NULL)
-    clutter_shader_set_is_enabled (shader, FALSE);
-
   /* Redirect drawing to the fbo */
   cogl_push_framebuffer (priv->fbo_handle);
 
@@ -553,10 +541,6 @@ update_fbo (ClutterActor *self)
 
   /* Restore drawing to the previous framebuffer */
   cogl_pop_framebuffer ();
-
-  /* If there is a shader on top of the shader stack, turn it back on. */
-  if (shader != NULL)
-    clutter_shader_set_is_enabled (shader, TRUE);
 }
 
 static void