[cogl] matrix: Add cogl_debug_matrix_print api

[Robert Bragg <rbragg src gnome org>]

commit 3b33889ff1204f19347a9548320ba95baa54c18c
Author: Robert Bragg <robert linux intel com>
Date:   Wed Jun 20 15:50:18 2012 +0100

    matrix: Add cogl_debug_matrix_print api
    
    As a convenience for debugging this adds a cogl_debug_matrix_print
    function that prints out the components of a matrix and any internal
    flags associated with the given matrix.

 cogl/cogl-matrix-private.h |    5 +----
 cogl/cogl-matrix.c         |    2 +-
 cogl/cogl-matrix.h         |   11 +++++++++++
 3 files changed, 13 insertions(+), 5 deletions(-)
---
diff --git a/cogl/cogl-matrix-private.h b/cogl/cogl-matrix-private.h
index f6f6cb8..0d79564 100644
--- a/cogl/cogl-matrix-private.h
+++ b/cogl/cogl-matrix-private.h
@@ -35,13 +35,10 @@ G_BEGIN_DECLS
   if (G_UNLIKELY (COGL_DEBUG_ENABLED (COGL_DEBUG_MATRICES))) \
     { \
       g_print ("%s:\n", G_STRFUNC); \
-      _cogl_matrix_print (MATRIX); \
+      cogl_debug_matrix_print (MATRIX); \
     }
 
 void
-_cogl_matrix_print (const CoglMatrix *matrix);
-
-void
 _cogl_matrix_prefix_print (const char *prefix, const CoglMatrix *matrix);
 
 G_END_DECLS
diff --git a/cogl/cogl-matrix.c b/cogl/cogl-matrix.c
index ba71d26..0ee28d2 100644
--- a/cogl/cogl-matrix.c
+++ b/cogl/cogl-matrix.c
@@ -380,7 +380,7 @@ _cogl_matrix_prefix_print (const char *prefix, const CoglMatrix *matrix)
  * Dumps the contents of a CoglMatrix structure.
  */
 void
-_cogl_matrix_print (const CoglMatrix *matrix)
+cogl_debug_matrix_print (const CoglMatrix *matrix)
 {
   _cogl_matrix_prefix_print ("", matrix);
 }
diff --git a/cogl/cogl-matrix.h b/cogl/cogl-matrix.h
index 5a93219..8d85e92 100644
--- a/cogl/cogl-matrix.h
+++ b/cogl/cogl-matrix.h
@@ -743,6 +743,17 @@ cogl_matrix_is_identity (const CoglMatrix *matrix);
 void
 cogl_matrix_transpose (CoglMatrix *matrix);
 
+/**
+ * cogl_debug_matrix_print:
+ * @matrix: A #CoglMatrix
+ *
+ * Prints the contents of a #CoglMatrix to stdout.
+ *
+ * Since: 2.0
+ */
+void
+cogl_debug_matrix_print (const CoglMatrix *matrix);
+
 #ifdef COGL_HAS_GTYPE_SUPPORT
 
 #define COGL_GTYPE_TYPE_MATRIX (cogl_gtype_matrix_get_type ())