cursor-tracker: Start moving some code to a new file

I want the MetaCursorTracker to mostly be about retrieving cursor
information. Start moving the code that loads cursor images to a
new file, MetaCursor. Eventually, MetaCursorTracker's APIs will
all take MetaCursorReferences, and we can have a clean backend
split here.

src/Makefile.am

@@ -127,6 +127,9 @@ libmutter_wayland_la_SOURCES =			\
 	core/keybindings.c			\
 	core/keybindings-private.h		\
 	core/main.c				\
+	core/meta-cursor.c			\
+	core/meta-cursor.h			\
+	core/meta-cursor-private.h		\
 	core/meta-cursor-tracker.c		\
 	core/meta-cursor-tracker-private.h	\
 	core/meta-idle-monitor.c		\

src/core/meta-cursor-private.h

@@ -0,0 +1,38 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/*
+ * Copyright 2013 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * Author: Giovanni Campagna <gcampagn@redhat.com>
+ */
+
+#ifndef META_CURSOR_PRIVATE_H
+#define META_CURSOR_PRIVATE_H
+
+#include "meta-cursor.h"
+
+#include <cogl/cogl.h>
+#include <gbm.h>
+
+struct _MetaCursorReference {
+  int ref_count;
+
+  CoglTexture2D *texture;
+  struct gbm_bo *bo;
+  int hot_x, hot_y;
+};
+
+#endif /* META_CURSOR_PRIVATE_H */

src/core/meta-cursor-tracker.c

@@ -45,20 +45,13 @@
 #include <X11/extensions/Xfixes.h>
 #include <X11/Xcursor/Xcursor.h>
 
+#include "meta-cursor-private.h"
 #include "meta-cursor-tracker-private.h"
 #include "screen-private.h"
 #include "monitor-private.h"
 
 #include "wayland/meta-wayland-private.h"
 
-typedef struct {
-  int ref_count;
-
-  CoglTexture2D *texture;
-  struct gbm_bo *bo;
-  int hot_x, hot_y;
-} MetaCursorReference;
-
 struct _MetaCursorTracker {
   GObject parent_instance;
 
@@ -123,30 +116,6 @@ static void meta_cursor_tracker_set_crtc_has_hw_cursor (MetaCursorTracker *track
                                                         gboolean           has_hw_cursor);
 static void sync_cursor (MetaCursorTracker *tracker);
 
-static MetaCursorReference *
-meta_cursor_reference_ref (MetaCursorReference *self)
-{
-  g_assert (self->ref_count > 0);
-  self->ref_count++;
-
-  return self;
-}
-
-static void
-meta_cursor_reference_unref (MetaCursorReference *self)
-{
-  self->ref_count--;
-
-  if (self->ref_count == 0)
-    {
-      cogl_object_unref (self->texture);
-      if (self->bo)
-        gbm_bo_destroy (self->bo);
-
-      g_slice_free (MetaCursorReference, self);
-    }
-}
-
 static void
 translate_meta_cursor (MetaCursor   cursor,
                        guint       *glyph_out,

src/core/meta-cursor.c

@@ -0,0 +1,48 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/*
+ * Copyright 2013 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * Author: Giovanni Campagna <gcampagn@redhat.com>
+ */
+
+#include "config.h"
+
+#include "meta-cursor-private.h"
+
+MetaCursorReference *
+meta_cursor_reference_ref (MetaCursorReference *self)
+{
+  g_assert (self->ref_count > 0);
+  self->ref_count++;
+
+  return self;
+}
+
+void
+meta_cursor_reference_unref (MetaCursorReference *self)
+{
+  self->ref_count--;
+
+  if (self->ref_count == 0)
+    {
+      cogl_object_unref (self->texture);
+      if (self->bo)
+        gbm_bo_destroy (self->bo);
+
+      g_slice_free (MetaCursorReference, self);
+    }
+}

src/core/meta-cursor.h

@@ -0,0 +1,30 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/*
+ * Copyright 2013 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * Author: Giovanni Campagna <gcampagn@redhat.com>
+ */
+
+#ifndef META_CURSOR_H
+#define META_CURSOR_H
+
+typedef struct _MetaCursorReference MetaCursorReference;
+
+MetaCursorReference * meta_cursor_reference_ref (MetaCursorReference *cursor);
+void meta_cursor_reference_unref (MetaCursorReference *cursor);
+
+#endif /* META_CURSOR_H */