[mutter/gbsneto/graphene-matrix: 6/41] cogl/tests: Compare matrices using array

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

commit cc1c632eb2e82311b2b4e12803fef4ee84f05027
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Tue Sep 8 19:36:13 2020 -0300

    cogl/tests: Compare matrices using array
    
    We'll remove direct access to CoglMatrix struct fields, so update
    the test to not access them already.

 cogl/tests/conform/test-euler.c | 27 +++++++++++----------------
 1 file changed, 11 insertions(+), 16 deletions(-)
---
diff --git a/cogl/tests/conform/test-euler.c b/cogl/tests/conform/test-euler.c
index c911a1a137..a99576abee 100644
--- a/cogl/tests/conform/test-euler.c
+++ b/cogl/tests/conform/test-euler.c
@@ -15,24 +15,19 @@
       g_assert_cmpfloat ((a), ==, (b));         \
   } while (0)
 
+#define COMPARE_ELEMENT(a, b, idx)        \
+  do {                                          \
+    COMPARE_FLOATS (a[idx], b[idx]);            \
+  } while (0)
+
 #define COMPARE_MATRICES(a, b) \
   do {                                          \
-    COMPARE_FLOATS ((a)->xx, (b)->xx);          \
-    COMPARE_FLOATS ((a)->yx, (b)->yx);          \
-    COMPARE_FLOATS ((a)->zx, (b)->zx);          \
-    COMPARE_FLOATS ((a)->wx, (b)->wx);          \
-    COMPARE_FLOATS ((a)->xy, (b)->xy);          \
-    COMPARE_FLOATS ((a)->yy, (b)->yy);          \
-    COMPARE_FLOATS ((a)->zy, (b)->zy);          \
-    COMPARE_FLOATS ((a)->wy, (b)->wy);          \
-    COMPARE_FLOATS ((a)->xz, (b)->xz);          \
-    COMPARE_FLOATS ((a)->yz, (b)->yz);          \
-    COMPARE_FLOATS ((a)->zz, (b)->zz);          \
-    COMPARE_FLOATS ((a)->wz, (b)->wz);          \
-    COMPARE_FLOATS ((a)->xw, (b)->xw);          \
-    COMPARE_FLOATS ((a)->yw, (b)->yw);          \
-    COMPARE_FLOATS ((a)->zw, (b)->zw);          \
-    COMPARE_FLOATS ((a)->ww, (b)->ww);          \
+    const float *af = cogl_matrix_get_array (a);\
+    const float *bf = cogl_matrix_get_array (b);\
+    int i;                                      \
+                                                \
+    for (i = 0; i < 16; i++)                    \
+      COMPARE_ELEMENT (af, bf, i);              \
   } while (0)
 
 void