From eee2e331fd7a858891d1aa0c4257c19201e670f8 Mon Sep 17 00:00:00 2001
From: Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
Date: Tue, 8 Sep 2020 21:04:59 -0300
Subject: [PATCH] cogl/matrix: Add constant identity initializer

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1439
---
 cogl/cogl/cogl-matrix.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/cogl/cogl/cogl-matrix.h b/cogl/cogl/cogl-matrix.h
index 2cfd95bbb..e784b094a 100644
--- a/cogl/cogl/cogl-matrix.h
+++ b/cogl/cogl/cogl-matrix.h
@@ -121,6 +121,12 @@ struct _CoglMatrix
 };
 COGL_STRUCT_SIZE_ASSERT (CoglMatrix, 128 + sizeof (unsigned long) * 3);
 
+#define COGL_MATRIX_INIT_IDENTITY (CoglMatrix) { \
+  1.0f, 0.0f, 0.0f, 0.0f, \
+  0.0f, 1.0f, 0.0f, 0.0f, \
+  0.0f, 0.0f, 1.0f, 0.0f, \
+  0.0f, 0.0f, 0.0f, 1.0f, \
+}
 
 /**
  * cogl_matrix_init_identity: