rendernode: Get rid of GskRenderNodeTypeInfo

Instead, use class_init functions.

3 files changed, 438 insertions, 395 deletions

diff --git a/gsk/gskrendernode.c b/gsk/gskrendernode.c
index 4ae09f7deb..26a8ea5031 100644
--- a/gsk/gskrendernode.c
+++ b/gsk/gskrendernode.c
@@ -148,7 +148,7 @@ static gboolean
 gsk_render_node_real_can_diff (const GskRenderNode *node1,
                                const GskRenderNode *node2)
 {
-  return FALSE;
+  return TRUE;
 }
 
 static void
@@ -156,6 +156,7 @@ gsk_render_node_real_diff (GskRenderNode  *node1,
                            GskRenderNode  *node2,
                            cairo_region_t *region)
 {
+  gsk_render_node_diff_impossible (node1, node2, region);
 }
 
 static void
@@ -229,50 +230,6 @@ gsk_render_node_get_type (void)
   return render_node_type__volatile;
 }
 
-typedef struct
-{
-  GskRenderNodeType node_type;
-
-  void     (* finalize) (GskRenderNode        *node);
-  void     (* draw)     (GskRenderNode        *node,
-                         cairo_t              *cr);
-  gboolean (* can_diff) (const GskRenderNode  *node1,
-                         const GskRenderNode  *node2);
-  void     (* diff)     (GskRenderNode        *node1,
-                         GskRenderNode        *node2,
-                         cairo_region_t       *region);
-} RenderNodeClassData;
-
-static void
-gsk_render_node_generic_class_init (gpointer g_class,
-                                    gpointer class_data)
-{
-  GskRenderNodeClass *node_class = g_class;
-  RenderNodeClassData *node_data = class_data;
-
-  /* Mandatory */
-  node_class->node_type = node_data->node_type;
-
-  /* Optional */
-  if (node_data->finalize != NULL)
-    node_class->finalize = node_data->finalize;
-  if (node_data->can_diff != NULL)
-    node_class->can_diff = node_data->can_diff;
-
-  /* Mandatory */
-  node_class->draw = node_data->draw;
-  node_class->diff = node_data->diff;
-
-  g_free (node_data);
-}
-
-static gboolean
-gsk_render_node_can_diff_true (const GskRenderNode *node1,
-                               const GskRenderNode *node2)
-{
-  return TRUE;
-}
-
 /*< private >
  * gsk_render_node_type_register_static:
  * @node_name: the name of the node
@@ -284,33 +241,18 @@ gsk_render_node_can_diff_true (const GskRenderNode *node1,
  * Returns: the newly registered GType
  */
 GType
-gsk_render_node_type_register_static (const char                  *node_name,
-                                      const GskRenderNodeTypeInfo *node_info)
+gsk_render_node_type_register_static (const char     *node_name,
+                                      gsize           instance_size,
+                                      GClassInitFunc  class_init)
 {
   GTypeInfo info;
 
   info.class_size = sizeof (GskRenderNodeClass);
   info.base_init = NULL;
   info.base_finalize = NULL;
-  info.class_init = gsk_render_node_generic_class_init;
+  info.class_init = class_init;
   info.class_finalize = NULL;
-
-  /* Avoid having a class_init() and a class struct for every GskRenderNode,
-   * by passing the various virtual functions and class data when initializing
-   * the base class
-   */
-  info.class_data = g_new (RenderNodeClassData, 1);
-  ((RenderNodeClassData *) info.class_data)->node_type = node_info->node_type;
-  ((RenderNodeClassData *) info.class_data)->finalize = node_info->finalize;
-  ((RenderNodeClassData *) info.class_data)->draw = node_info->draw;
-  ((RenderNodeClassData *) info.class_data)->can_diff = node_info->can_diff != NULL
-                                                      ? node_info->can_diff
-                                                      : gsk_render_node_can_diff_true;
-  ((RenderNodeClassData *) info.class_data)->diff = node_info->diff != NULL
-                                                  ? node_info->diff
-                                                  : gsk_render_node_diff_impossible;
-
-  info.instance_size = node_info->instance_size;
+  info.instance_size = instance_size;
   info.n_preallocs = 0;
   info.instance_init = NULL;
   info.value_table = NULL;
diff --git a/gsk/gskrendernodeimpl.c b/gsk/gskrendernodeimpl.c
index 01e20a7cb2..0a09a353d5 100644
--- a/gsk/gskrendernodeimpl.c
+++ b/gsk/gskrendernodeimpl.c
@@ -115,6 +115,18 @@ gsk_color_node_diff (GskRenderNode  *node1,
   gsk_render_node_diff_impossible (node1, node2, region);
 }
 
+static void
+gsk_color_node_class_init (gpointer g_class,
+                           gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_COLOR_NODE;
+
+  node_class->draw = gsk_color_node_draw;
+  node_class->diff = gsk_color_node_diff;
+}
+
 /**
  * gsk_color_node_get_color:
  * @node: (type GskColorNode): a `GskRenderNode`
@@ -263,6 +275,32 @@ gsk_linear_gradient_node_diff (GskRenderNode  *node1,
   gsk_render_node_diff_impossible (node1, node2, region);
 }
 
+static void
+gsk_linear_gradient_node_class_init (gpointer g_class,
+                                     gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_LINEAR_GRADIENT_NODE;
+
+  node_class->finalize = gsk_linear_gradient_node_finalize;
+  node_class->draw = gsk_linear_gradient_node_draw;
+  node_class->diff = gsk_linear_gradient_node_diff;
+}
+
+static void
+gsk_repeating_linear_gradient_node_class_init (gpointer g_class,
+                                               gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_REPEATING_LINEAR_GRADIENT_NODE;
+
+  node_class->finalize = gsk_linear_gradient_node_finalize;
+  node_class->draw = gsk_linear_gradient_node_draw;
+  node_class->diff = gsk_linear_gradient_node_diff;
+}
+
 /**
  * gsk_linear_gradient_node_new:
  * @bounds: the rectangle to render the linear gradient into
@@ -553,6 +591,32 @@ gsk_radial_gradient_node_diff (GskRenderNode  *node1,
   gsk_render_node_diff_impossible (node1, node2, region);
 }
 
+static void
+gsk_radial_gradient_node_class_init (gpointer g_class,
+                                     gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_RADIAL_GRADIENT_NODE;
+
+  node_class->finalize = gsk_radial_gradient_node_finalize;
+  node_class->draw = gsk_radial_gradient_node_draw;
+  node_class->diff = gsk_radial_gradient_node_diff;
+}
+
+static void
+gsk_repeating_radial_gradient_node_class_init (gpointer g_class,
+                                               gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_REPEATING_RADIAL_GRADIENT_NODE;
+
+  node_class->finalize = gsk_radial_gradient_node_finalize;
+  node_class->draw = gsk_radial_gradient_node_draw;
+  node_class->diff = gsk_radial_gradient_node_diff;
+}
+
 /**
  * gsk_radial_gradient_node_new:
  * @bounds: the bounds of the node
@@ -1013,6 +1077,19 @@ gsk_conic_gradient_node_diff (GskRenderNode  *node1,
     }
 }
 
+static void
+gsk_conic_gradient_node_class_init (gpointer g_class,
+                                    gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_CONIC_GRADIENT_NODE;
+
+  node_class->finalize = gsk_conic_gradient_node_finalize;
+  node_class->draw = gsk_conic_gradient_node_draw;
+  node_class->diff = gsk_conic_gradient_node_diff;
+}
+
 /**
  * gsk_conic_gradient_node_new:
  * @bounds: the bounds of the node
@@ -1359,6 +1436,18 @@ gsk_border_node_diff (GskRenderNode  *node1,
   gsk_render_node_diff_impossible (node1, node2, region);
 }
 
+static void
+gsk_border_node_class_init (gpointer g_class,
+                            gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_BORDER_NODE;
+
+  node_class->draw = gsk_border_node_draw;
+  node_class->diff = gsk_border_node_diff;
+}
+
 /**
  * gsk_border_node_get_outline:
  * @node: (type GskBorderNode): a `GskRenderNode` for a border
@@ -1549,6 +1638,19 @@ gsk_texture_node_diff (GskRenderNode  *node1,
   gsk_render_node_diff_impossible (node1, node2, region);
 }
 
+static void
+gsk_texture_node_class_init (gpointer g_class,
+                             gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_TEXTURE_NODE;
+
+  node_class->finalize = gsk_texture_node_finalize;
+  node_class->draw = gsk_texture_node_draw;
+  node_class->diff = gsk_texture_node_diff;
+}
+
 /**
  * gsk_texture_node_get_texture:
  * @node: (type GskTextureNode): a `GskRenderNode` of type %GSK_TEXTURE_NODE
@@ -1715,6 +1817,19 @@ gsk_texture_scale_node_diff (GskRenderNode  *node1,
   gsk_render_node_diff_impossible (node1, node2, region);
 }
 
+static void
+gsk_texture_scale_node_class_init (gpointer g_class,
+                                   gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_TEXTURE_SCALE_NODE;
+
+  node_class->finalize = gsk_texture_scale_node_finalize;
+  node_class->draw = gsk_texture_scale_node_draw;
+  node_class->diff = gsk_texture_scale_node_diff;
+}
+
 /**
  * gsk_texture_scale_node_get_texture:
  * @node: (type GskTextureScaleNode): a `GskRenderNode` of type %GSK_TEXTURE_SCALE_NODE
@@ -2215,6 +2330,18 @@ gsk_inset_shadow_node_diff (GskRenderNode  *node1,
   gsk_render_node_diff_impossible (node1, node2, region);
 }
 
+static void
+gsk_inset_shadow_node_class_init (gpointer g_class,
+                                  gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_INSET_SHADOW_NODE;
+
+  node_class->draw = gsk_inset_shadow_node_draw;
+  node_class->diff = gsk_inset_shadow_node_diff;
+}
+
 /**
  * gsk_inset_shadow_node_new:
  * @outline: outline of the region containing the shadow
@@ -2515,6 +2642,18 @@ gsk_outset_shadow_node_diff (GskRenderNode  *node1,
   gsk_render_node_diff_impossible (node1, node2, region);
 }
 
+static void
+gsk_outset_shadow_node_class_init (gpointer g_class,
+                          gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_OUTSET_SHADOW_NODE;
+
+  node_class->draw = gsk_outset_shadow_node_draw;
+  node_class->diff = gsk_outset_shadow_node_diff;
+}
+
 /**
  * gsk_outset_shadow_node_new:
  * @outline: outline of the region surrounded by shadow
@@ -2702,6 +2841,18 @@ gsk_cairo_node_draw (GskRenderNode *node,
   cairo_paint (cr);
 }
 
+static void
+gsk_cairo_node_class_init (gpointer g_class,
+                           gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_CAIRO_NODE;
+
+  node_class->finalize = gsk_cairo_node_finalize;
+  node_class->draw = gsk_cairo_node_draw;
+}
+
 /**
  * gsk_cairo_node_get_surface:
  * @node: (type GskCairoNode): a `GskRenderNode` for a Cairo surface
@@ -2941,6 +3092,19 @@ gsk_container_node_diff (GskRenderNode  *node1,
   gsk_render_node_diff_impossible (node1, node2, region);
 }
 
+static void
+gsk_container_node_class_init (gpointer g_class,
+                               gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_CONTAINER_NODE;
+
+  node_class->finalize = gsk_container_node_finalize;
+  node_class->draw = gsk_container_node_draw;
+  node_class->diff = gsk_container_node_diff;
+}
+
 /**
  * gsk_container_node_new:
  * @children: (array length=n_children) (transfer none): The children of the node
@@ -3201,6 +3365,20 @@ gsk_transform_node_diff (GskRenderNode  *node1,
     }
 }
 
+static void
+gsk_transform_node_class_init (gpointer g_class,
+                               gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_TRANSFORM_NODE;
+
+  node_class->finalize = gsk_transform_node_finalize;
+  node_class->draw = gsk_transform_node_draw;
+  node_class->can_diff = gsk_transform_node_can_diff;
+  node_class->diff = gsk_transform_node_diff;
+}
+
 /**
  * gsk_transform_node_new:
  * @child: The node to transform
@@ -3348,6 +3526,19 @@ gsk_opacity_node_diff (GskRenderNode  *node1,
     gsk_render_node_diff_impossible (node1, node2, region);
 }
 
+static void
+gsk_opacity_node_class_init (gpointer g_class,
+                             gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_OPACITY_NODE;
+
+  node_class->finalize = gsk_opacity_node_finalize;
+  node_class->draw = gsk_opacity_node_draw;
+  node_class->diff = gsk_opacity_node_diff;
+}
+
 /**
  * gsk_opacity_node_new:
  * @child: The node to draw
@@ -3564,6 +3755,19 @@ nope:
   return;
 }
 
+static void
+gsk_color_matrix_node_class_init (gpointer g_class,
+                                  gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_COLOR_MATRIX_NODE;
+
+  node_class->finalize = gsk_color_matrix_node_finalize;
+  node_class->draw = gsk_color_matrix_node_draw;
+  node_class->diff = gsk_color_matrix_node_diff;
+}
+
 /**
  * gsk_color_matrix_node_new:
  * @child: The node to draw
@@ -3718,6 +3922,18 @@ gsk_repeat_node_draw (GskRenderNode *node,
   cairo_fill (cr);
 }
 
+static void
+gsk_repeat_node_class_init (gpointer g_class,
+                            gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_REPEAT_NODE;
+
+  node_class->finalize = gsk_repeat_node_finalize;
+  node_class->draw = gsk_repeat_node_draw;
+}
+
 /**
  * gsk_repeat_node_new:
  * @bounds: The bounds of the area to be painted
@@ -3859,6 +4075,19 @@ gsk_clip_node_diff (GskRenderNode  *node1,
       gsk_render_node_diff_impossible (node1, node2, region);
     }
 }
+ 
+static void
+gsk_clip_node_class_init (gpointer g_class,
+                               gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_CLIP_NODE;
+
+  node_class->finalize = gsk_clip_node_finalize;
+  node_class->draw = gsk_clip_node_draw;
+  node_class->diff = gsk_clip_node_diff;
+}
 
 /**
  * gsk_clip_node_new:
@@ -3995,6 +4224,19 @@ gsk_rounded_clip_node_diff (GskRenderNode  *node1,
     }
 }
 
+static void
+gsk_rounded_clip_node_class_init (gpointer g_class,
+                                  gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_ROUNDED_CLIP_NODE;
+
+  node_class->finalize = gsk_rounded_clip_node_finalize;
+  node_class->draw = gsk_rounded_clip_node_draw;
+  node_class->diff = gsk_rounded_clip_node_diff;
+}
+
 /**
  * gsk_rounded_clip_node_new:
  * @child: The node to draw
@@ -4213,6 +4455,19 @@ gsk_shadow_node_get_bounds (GskShadowNode *self,
   bounds->size.height += top + bottom;
 }
 
+static void
+gsk_shadow_node_class_init (gpointer g_class,
+                            gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_SHADOW_NODE;
+
+  node_class->finalize = gsk_shadow_node_finalize;
+  node_class->draw = gsk_shadow_node_draw;
+  node_class->diff = gsk_shadow_node_diff;
+}
+
 /**
  * gsk_shadow_node_new:
  * @child: The node to draw
@@ -4412,6 +4667,19 @@ gsk_blend_node_diff (GskRenderNode  *node1,
     }
 }
 
+static void
+gsk_blend_node_class_init (gpointer g_class,
+                           gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_BLEND_NODE;
+
+  node_class->finalize = gsk_blend_node_finalize;
+  node_class->draw = gsk_blend_node_draw;
+  node_class->diff = gsk_blend_node_diff;
+}
+
 /**
  * gsk_blend_node_new:
  * @bottom: The bottom node to be drawn
@@ -4564,6 +4832,19 @@ gsk_cross_fade_node_diff (GskRenderNode  *node1,
   gsk_render_node_diff_impossible (node1, node2, region);
 }
 
+static void
+gsk_cross_fade_node_class_init (gpointer g_class,
+                                gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_CROSS_FADE_NODE;
+
+  node_class->finalize = gsk_cross_fade_node_finalize;
+  node_class->draw = gsk_cross_fade_node_draw;
+  node_class->diff = gsk_cross_fade_node_diff;
+}
+
 /**
  * gsk_cross_fade_node_new:
  * @start: The start node to be drawn
@@ -4741,6 +5022,19 @@ gsk_text_node_diff (GskRenderNode  *node1,
   gsk_render_node_diff_impossible (node1, node2, region);
 }
 
+static void
+gsk_text_node_class_init (gpointer g_class,
+                          gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_TEXT_NODE;
+
+  node_class->finalize = gsk_text_node_finalize;
+  node_class->draw = gsk_text_node_draw;
+  node_class->diff = gsk_text_node_diff;
+}
+
 /**
  * gsk_text_node_new:
  * @font: the `PangoFont` containing the glyphs
@@ -5164,6 +5458,19 @@ gsk_blur_node_diff (GskRenderNode  *node1,
     }
 }
 
+static void
+gsk_blur_node_class_init (gpointer g_class,
+                          gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_BLUR_NODE;
+
+  node_class->finalize = gsk_blur_node_finalize;
+  node_class->draw = gsk_blur_node_draw;
+  node_class->diff = gsk_blur_node_diff;
+}
+
 /**
  * gsk_blur_node_new:
  * @child: the child node to blur
@@ -5332,6 +5639,19 @@ gsk_mask_node_diff (GskRenderNode  *node1,
   gsk_render_node_diff (self1->mask, self2->mask, region);
 }
 
+static void
+gsk_mask_node_class_init (gpointer g_class,
+                          gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_MASK_NODE;
+
+  node_class->finalize = gsk_mask_node_finalize;
+  node_class->draw = gsk_mask_node_draw;
+  node_class->diff = gsk_mask_node_diff;
+}
+
 /**
  * gsk_mask_node_new:
  * @source: The source node to be drawn
@@ -5487,6 +5807,20 @@ gsk_debug_node_diff (GskRenderNode  *node1,
   gsk_render_node_diff (self1->child, self2->child, region);
 }
 
+static void
+gsk_debug_node_class_init (gpointer g_class,
+                           gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_DEBUG_NODE;
+
+  node_class->finalize = gsk_debug_node_finalize;
+  node_class->draw = gsk_debug_node_draw;
+  node_class->can_diff = gsk_debug_node_can_diff;
+  node_class->diff = gsk_debug_node_diff;
+}
+
 /**
  * gsk_debug_node_new:
  * @child: The child to add debug info for
@@ -5624,6 +5958,19 @@ gsk_gl_shader_node_diff (GskRenderNode  *node1,
     }
 }
 
+static void
+gsk_gl_shader_node_class_init (gpointer g_class,
+                               gpointer class_data)
+{
+  GskRenderNodeClass *node_class = g_class;
+
+  node_class->node_type = GSK_GL_SHADER_NODE;
+
+  node_class->finalize = gsk_gl_shader_node_finalize;
+  node_class->draw = gsk_gl_shader_node_draw;
+  node_class->diff = gsk_gl_shader_node_diff;
+}
+
 /**
  * gsk_gl_shader_node_new:
  * @shader: the `GskGLShader`
@@ -5808,407 +6155,192 @@ static void
 gsk_render_node_init_types_once (void)
 {
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_CONTAINER_NODE,
-      sizeof (GskContainerNode),
-      gsk_container_node_finalize,
-      gsk_container_node_draw,
-      NULL,
-      gsk_container_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskContainerNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskContainerNode"),
+                                                            sizeof (GskContainerNode),
+                                                            gsk_container_node_class_init);
     gsk_render_node_types[GSK_CONTAINER_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_CAIRO_NODE,
-      sizeof (GskCairoNode),
-      gsk_cairo_node_finalize,
-      gsk_cairo_node_draw,
-      NULL,
-      NULL,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskCairoNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskCairoNode"),
+                                                            sizeof (GskCairoNode),
+                                                            gsk_cairo_node_class_init);
     gsk_render_node_types[GSK_CAIRO_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_COLOR_NODE,
-      sizeof (GskColorNode),
-      NULL,
-      gsk_color_node_draw,
-      NULL,
-      gsk_color_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskColorNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskColorNode"),
+                                                            sizeof (GskColorNode),
+                                                            gsk_color_node_class_init);
     gsk_render_node_types[GSK_COLOR_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_LINEAR_GRADIENT_NODE,
-      sizeof (GskLinearGradientNode),
-      gsk_linear_gradient_node_finalize,
-      gsk_linear_gradient_node_draw,
-      NULL,
-      gsk_linear_gradient_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskLinearGradientNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskLinearGradientNode"),
+                                                            sizeof (GskLinearGradientNode),
+                                                            gsk_linear_gradient_node_class_init);
     gsk_render_node_types[GSK_LINEAR_GRADIENT_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_REPEATING_LINEAR_GRADIENT_NODE,
-      sizeof (GskLinearGradientNode),
-      gsk_linear_gradient_node_finalize,
-      gsk_linear_gradient_node_draw,
-      NULL,
-      gsk_linear_gradient_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskRepeatingLinearGradientNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskRepeatingLinearGradientNode"),
+                                                            sizeof (GskLinearGradientNode),
+                                                            gsk_repeating_linear_gradient_node_class_init);
     gsk_render_node_types[GSK_REPEATING_LINEAR_GRADIENT_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_RADIAL_GRADIENT_NODE,
-      sizeof (GskRadialGradientNode),
-      gsk_radial_gradient_node_finalize,
-      gsk_radial_gradient_node_draw,
-      NULL,
-      gsk_radial_gradient_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskRadialGradientNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskRadialGradientNode"),
+                                                            sizeof (GskRadialGradientNode),
+                                                            gsk_radial_gradient_node_class_init);
     gsk_render_node_types[GSK_RADIAL_GRADIENT_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_REPEATING_RADIAL_GRADIENT_NODE,
-      sizeof (GskRadialGradientNode),
-      gsk_radial_gradient_node_finalize,
-      gsk_radial_gradient_node_draw,
-      NULL,
-      gsk_radial_gradient_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskRepeatingRadialGradientNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskRepeatingRadialGradientNode"),
+                                                            sizeof (GskRadialGradientNode),
+                                                            gsk_repeating_radial_gradient_node_class_init);
     gsk_render_node_types[GSK_REPEATING_RADIAL_GRADIENT_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_CONIC_GRADIENT_NODE,
-      sizeof (GskConicGradientNode),
-      gsk_conic_gradient_node_finalize,
-      gsk_conic_gradient_node_draw,
-      NULL,
-      gsk_conic_gradient_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskConicGradientNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskConicGradientNode"),
+                                                            sizeof (GskConicGradientNode),
+                                                            gsk_conic_gradient_node_class_init);
     gsk_render_node_types[GSK_CONIC_GRADIENT_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_BORDER_NODE,
-      sizeof (GskBorderNode),
-      NULL,
-      gsk_border_node_draw,
-      NULL,
-      gsk_border_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskBorderNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskBorderNode"),
+                                                            sizeof (GskBorderNode),
+                                                            gsk_border_node_class_init);
     gsk_render_node_types[GSK_BORDER_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_TEXTURE_NODE,
-      sizeof (GskTextureNode),
-      gsk_texture_node_finalize,
-      gsk_texture_node_draw,
-      NULL,
-      gsk_texture_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskTextureNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskTextureNode"),
+                                                            sizeof (GskTextureNode),
+                                                            gsk_texture_node_class_init);
     gsk_render_node_types[GSK_TEXTURE_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_TEXTURE_SCALE_NODE,
-      sizeof (GskTextureScaleNode),
-      gsk_texture_scale_node_finalize,
-      gsk_texture_scale_node_draw,
-      NULL,
-      gsk_texture_scale_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskTextureScaleNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskTextureScaleNode"),
+                                                            sizeof (GskTextureScaleNode),
+                                                            gsk_texture_scale_node_class_init);
     gsk_render_node_types[GSK_TEXTURE_SCALE_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_INSET_SHADOW_NODE,
-      sizeof (GskInsetShadowNode),
-      NULL,
-      gsk_inset_shadow_node_draw,
-      NULL,
-      gsk_inset_shadow_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskInsetShadowNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskInsetShadowNode"),
+                                                            sizeof (GskInsetShadowNode),
+                                                            gsk_inset_shadow_node_class_init);
     gsk_render_node_types[GSK_INSET_SHADOW_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_OUTSET_SHADOW_NODE,
-      sizeof (GskOutsetShadowNode),
-      NULL,
-      gsk_outset_shadow_node_draw,
-      NULL,
-      gsk_outset_shadow_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskOutsetShadowNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskOutsetShadowNode"),
+                                                            sizeof (GskOutsetShadowNode),
+                                                            gsk_outset_shadow_node_class_init);
     gsk_render_node_types[GSK_OUTSET_SHADOW_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_TRANSFORM_NODE,
-      sizeof (GskTransformNode),
-      gsk_transform_node_finalize,
-      gsk_transform_node_draw,
-      gsk_transform_node_can_diff,
-      gsk_transform_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskTransformNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskTransformNode"),
+                                                            sizeof (GskTransformNode),
+                                                            gsk_transform_node_class_init);
     gsk_render_node_types[GSK_TRANSFORM_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_OPACITY_NODE,
-      sizeof (GskOpacityNode),
-      gsk_opacity_node_finalize,
-      gsk_opacity_node_draw,
-      NULL,
-      gsk_opacity_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskOpacityNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskOpacityNode"),
+                                                            sizeof (GskOpacityNode),
+                                                            gsk_opacity_node_class_init);
     gsk_render_node_types[GSK_OPACITY_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_COLOR_MATRIX_NODE,
-      sizeof (GskColorMatrixNode),
-      gsk_color_matrix_node_finalize,
-      gsk_color_matrix_node_draw,
-      NULL,
-      gsk_color_matrix_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskColorMatrixNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskColorMatrixNode"),
+                                                            sizeof (GskColorMatrixNode),
+                                                            gsk_color_matrix_node_class_init);
     gsk_render_node_types[GSK_COLOR_MATRIX_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_REPEAT_NODE,
-      sizeof (GskRepeatNode),
-      gsk_repeat_node_finalize,
-      gsk_repeat_node_draw,
-      NULL,
-      NULL,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskRepeatNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskRepeatNode"),
+                                                            sizeof (GskRepeatNode),
+                                                            gsk_repeat_node_class_init);
     gsk_render_node_types[GSK_REPEAT_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_CLIP_NODE,
-      sizeof (GskClipNode),
-      gsk_clip_node_finalize,
-      gsk_clip_node_draw,
-      NULL,
-      gsk_clip_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskClipNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskClipNode"),
+                                                            sizeof (GskClipNode),
+                                                            gsk_clip_node_class_init);
     gsk_render_node_types[GSK_CLIP_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_ROUNDED_CLIP_NODE,
-      sizeof (GskRoundedClipNode),
-      gsk_rounded_clip_node_finalize,
-      gsk_rounded_clip_node_draw,
-      NULL,
-      gsk_rounded_clip_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskRoundedClipNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskRoundedClipNode"),
+                                                            sizeof (GskRoundedClipNode),
+                                                            gsk_rounded_clip_node_class_init);
     gsk_render_node_types[GSK_ROUNDED_CLIP_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_SHADOW_NODE,
-      sizeof (GskShadowNode),
-      gsk_shadow_node_finalize,
-      gsk_shadow_node_draw,
-      NULL,
-      gsk_shadow_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskShadowNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskShadowNode"),
+                                                            sizeof (GskShadowNode),
+                                                            gsk_shadow_node_class_init);
     gsk_render_node_types[GSK_SHADOW_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_BLEND_NODE,
-      sizeof (GskBlendNode),
-      gsk_blend_node_finalize,
-      gsk_blend_node_draw,
-      NULL,
-      gsk_blend_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskBlendNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskBlendNode"),
+                                                            sizeof (GskBlendNode),
+                                                            gsk_blend_node_class_init);
     gsk_render_node_types[GSK_BLEND_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_CROSS_FADE_NODE,
-      sizeof (GskCrossFadeNode),
-      gsk_cross_fade_node_finalize,
-      gsk_cross_fade_node_draw,
-      NULL,
-      gsk_cross_fade_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskCrossFadeNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskCrossFadeNode"),
+                                                            sizeof (GskCrossFadeNode),
+                                                            gsk_cross_fade_node_class_init);
     gsk_render_node_types[GSK_CROSS_FADE_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_TEXT_NODE,
-      sizeof (GskTextNode),
-      gsk_text_node_finalize,
-      gsk_text_node_draw,
-      NULL,
-      gsk_text_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskTextNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskTextNode"),
+                                                            sizeof (GskTextNode),
+                                                            gsk_text_node_class_init);
     gsk_render_node_types[GSK_TEXT_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_BLUR_NODE,
-      sizeof (GskBlurNode),
-      gsk_blur_node_finalize,
-      gsk_blur_node_draw,
-      NULL,
-      gsk_blur_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskBlurNode"), &node_info);
+
+    GType node_type = gsk_render_node_type_register_static (I_("GskBlurNode"),
+                                                            sizeof (GskBlurNode),
+                                                            gsk_blur_node_class_init);
     gsk_render_node_types[GSK_BLUR_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_MASK_NODE,
-      sizeof (GskMaskNode),
-      gsk_mask_node_finalize,
-      gsk_mask_node_draw,
-      NULL,
-      gsk_mask_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskMaskNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskMaskNode"),
+                                                            sizeof (GskMaskNode),
+                                                            gsk_mask_node_class_init);
     gsk_render_node_types[GSK_MASK_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_GL_SHADER_NODE,
-      sizeof (GskGLShaderNode),
-      gsk_gl_shader_node_finalize,
-      gsk_gl_shader_node_draw,
-      NULL,
-      gsk_gl_shader_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskGLShaderNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskGLShaderNode"),
+                                                            sizeof (GskGLShaderNode),
+                                                            gsk_gl_shader_node_class_init);
     gsk_render_node_types[GSK_GL_SHADER_NODE] = node_type;
   }
 
   {
-    const GskRenderNodeTypeInfo node_info =
-    {
-      GSK_DEBUG_NODE,
-      sizeof (GskDebugNode),
-      gsk_debug_node_finalize,
-      gsk_debug_node_draw,
-      gsk_debug_node_can_diff,
-      gsk_debug_node_diff,
-    };
-
-    GType node_type = gsk_render_node_type_register_static (I_("GskDebugNode"), &node_info);
+    GType node_type = gsk_render_node_type_register_static (I_("GskDebugNode"),
+                                                            sizeof (GskDebugNode),
+                                                            gsk_debug_node_class_init);
     gsk_render_node_types[GSK_DEBUG_NODE] = node_type;
   }
 }
diff --git a/gsk/gskrendernodeprivate.h b/gsk/gskrendernodeprivate.h
index ffcd0bb478..04135ec971 100644
--- a/gsk/gskrendernodeprivate.h
+++ b/gsk/gskrendernodeprivate.h
@@ -47,42 +47,11 @@ struct _GskRenderNodeClass
                                    cairo_region_t *region);
 };
 
-/*< private >
- * GskRenderNodeTypeInfo:
- * @node_type: the render node type in the `GskRenderNodeType` enumeration
- * @instance_size: the size of the render node instance
- * @instance_init: (nullable): the instance initialization function
- * @finalize: (nullable): the instance finalization function; must chain up to the
- *   implementation of the parent class
- * @draw: the function called by gsk_render_node_draw()
- * @can_diff: (nullable): the function called by gsk_render_node_can_diff(); if
- *   unset, gsk_render_node_can_diff_true() will be used
- * @diff: (nullable): the function called by gsk_render_node_diff(); if unset,
- *   gsk_render_node_diff_impossible() will be used
- *
- * A struction that contains the type information for a `GskRenderNode` subclass,
- * to be used by gsk_render_node_type_register_static().
- */
-typedef struct
-{
-  GskRenderNodeType node_type;
-
-  gsize instance_size;
-
-  void            (* finalize)      (GskRenderNode        *node);
-  void            (* draw)          (GskRenderNode        *node,
-                                     cairo_t              *cr);
-  gboolean        (* can_diff)      (const GskRenderNode  *node1,
-                                     const GskRenderNode  *node2);
-  void            (* diff)          (GskRenderNode        *node1,
-                                     GskRenderNode        *node2,
-                                     cairo_region_t       *region);
-} GskRenderNodeTypeInfo;
-
 void            gsk_render_node_init_types              (void);
 
 GType           gsk_render_node_type_register_static    (const char                  *node_name,
-                                                         const GskRenderNodeTypeInfo *node_info);
+                                                         gsize                        instance_size,
+                                                         GClassInitFunc               class_init);
 
 gpointer        gsk_render_node_alloc                   (GskRenderNodeType            node_type);