[mutter/gbsneto/graphene-matrix] cogl/matrix-stack: Use graphene APIs

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

commit fb99de7bd64c32f125c28e3abf2b63aee4cdb251
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Fri Sep 11 18:32:25 2020 -0300

    cogl/matrix-stack: Use graphene APIs
    
    Nothing new under the sun.
    
    https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1439

 cogl/cogl/cogl-matrix-stack.c | 57 +++++++++++++++++--------------------------
 1 file changed, 23 insertions(+), 34 deletions(-)
---
diff --git a/cogl/cogl/cogl-matrix-stack.c b/cogl/cogl/cogl-matrix-stack.c
index 9a308ea7bf..87efb6c405 100644
--- a/cogl/cogl/cogl-matrix-stack.c
+++ b/cogl/cogl/cogl-matrix-stack.c
@@ -238,10 +238,10 @@ cogl_matrix_stack_frustum (CoglMatrixStack *stack,
     _cogl_matrix_stack_push_replacement_entry (stack,
                                                COGL_MATRIX_OP_LOAD);
 
-  cogl_matrix_init_identity (&entry->matrix);
-  cogl_matrix_frustum (&entry->matrix,
-                       left, right, bottom, top,
-                       z_near, z_far);
+  graphene_matrix_init_frustum (&entry->matrix,
+                                left, right,
+                                bottom, top,
+                                z_near, z_far);
 }
 
 void
@@ -256,9 +256,9 @@ cogl_matrix_stack_perspective (CoglMatrixStack *stack,
   entry =
     _cogl_matrix_stack_push_replacement_entry (stack,
                                                COGL_MATRIX_OP_LOAD);
-  cogl_matrix_init_identity (&entry->matrix);
-  cogl_matrix_perspective (&entry->matrix,
-                           fov_y, aspect, z_near, z_far);
+  graphene_matrix_init_perspective (&entry->matrix,
+                                    fov_y, aspect,
+                                    z_near, z_far);
 }
 
 void
@@ -275,9 +275,10 @@ cogl_matrix_stack_orthographic (CoglMatrixStack *stack,
   entry =
     _cogl_matrix_stack_push_replacement_entry (stack,
                                                COGL_MATRIX_OP_LOAD);
-  cogl_matrix_init_identity (&entry->matrix);
-  cogl_matrix_orthographic (&entry->matrix,
-                            x_1, y_1, x_2, y_2, near, far);
+  graphene_matrix_init_ortho (&entry->matrix,
+                              x_1, x_2,
+                              y_2, y_1,
+                              near, far);
 }
 
 void
@@ -384,13 +385,12 @@ cogl_matrix_entry_get (CoglMatrixEntry   *entry,
       switch (current->op)
         {
         case COGL_MATRIX_OP_LOAD_IDENTITY:
-          cogl_matrix_init_identity (matrix);
+          graphene_matrix_init_identity (matrix);
           goto initialized;
         case COGL_MATRIX_OP_LOAD:
           {
             CoglMatrixEntryLoad *load = (CoglMatrixEntryLoad *)current;
-            _cogl_matrix_init_from_matrix_without_inverse (matrix,
-                                                           &load->matrix);
+            graphene_matrix_init_from_matrix (matrix, &load->matrix);
             goto initialized;
           }
         case COGL_MATRIX_OP_SAVE:
@@ -401,7 +401,7 @@ cogl_matrix_entry_get (CoglMatrixEntry   *entry,
                 cogl_matrix_entry_get (current->parent, &save->cache);
                 save->cache_valid = TRUE;
               }
-            _cogl_matrix_init_from_matrix_without_inverse (matrix, &save->cache);
+            graphene_matrix_init_from_matrix (matrix, &save->cache);
             goto initialized;
           }
         default:
@@ -478,46 +478,35 @@ initialized:
           {
             CoglMatrixEntryTranslate *translate =
               (CoglMatrixEntryTranslate *)children[i];
-            cogl_matrix_translate (matrix,
-                                   translate->translate.x,
-                                   translate->translate.y,
-                                   translate->translate.z);
+            graphene_matrix_translate (matrix, &translate->translate);
             continue;
           }
         case COGL_MATRIX_OP_ROTATE:
           {
             CoglMatrixEntryRotate *rotate=
               (CoglMatrixEntryRotate *)children[i];
-            cogl_matrix_rotate (matrix,
-                                rotate->angle,
-                                graphene_vec3_get_x (&rotate->axis),
-                                graphene_vec3_get_y (&rotate->axis),
-                                graphene_vec3_get_z (&rotate->axis));
+            graphene_matrix_rotate (matrix, rotate->angle, &rotate->axis);
             continue;
           }
         case COGL_MATRIX_OP_ROTATE_EULER:
           {
             CoglMatrixEntryRotateEuler *rotate =
               (CoglMatrixEntryRotateEuler *)children[i];
-            cogl_matrix_rotate_euler (matrix,
-                                      &rotate->euler);
+            graphene_matrix_rotate_euler (matrix, &rotate->euler);
             continue;
           }
         case COGL_MATRIX_OP_SCALE:
           {
             CoglMatrixEntryScale *scale =
               (CoglMatrixEntryScale *)children[i];
-            cogl_matrix_scale (matrix,
-                               scale->x,
-                               scale->y,
-                               scale->z);
+            graphene_matrix_scale (matrix, scale->x, scale->y, scale->z);
             continue;
           }
         case COGL_MATRIX_OP_MULTIPLY:
           {
             CoglMatrixEntryMultiply *multiply =
               (CoglMatrixEntryMultiply *)children[i];
-            cogl_matrix_multiply (matrix, matrix, &multiply->matrix);
+            graphene_matrix_multiply (&multiply->matrix, matrix, matrix);
             continue;
           }
 
@@ -793,7 +782,7 @@ cogl_matrix_entry_equal (CoglMatrixEntry *entry0,
           {
             CoglMatrixEntryMultiply *mult0 = (CoglMatrixEntryMultiply *)entry0;
             CoglMatrixEntryMultiply *mult1 = (CoglMatrixEntryMultiply *)entry1;
-            if (!cogl_matrix_equal (&mult0->matrix, &mult1->matrix))
+            if (!graphene_matrix_equal (&mult0->matrix, &mult1->matrix))
               return FALSE;
           }
           break;
@@ -804,7 +793,7 @@ cogl_matrix_entry_equal (CoglMatrixEntry *entry0,
             /* There's no need to check any further since an
              * _OP_LOAD makes all the ancestors redundant as far as
              * the final matrix value is concerned. */
-            return cogl_matrix_equal (&load0->matrix, &load1->matrix);
+            return graphene_matrix_equal (&load0->matrix, &load1->matrix);
           }
         case COGL_MATRIX_OP_SAVE:
           /* We skip over saves above so we shouldn't see save entries */
@@ -890,14 +879,14 @@ cogl_debug_matrix_entry_print (CoglMatrixEntry *entry)
           {
             CoglMatrixEntryMultiply *mult = (CoglMatrixEntryMultiply *)entry;
             g_print ("  MULT:\n");
-            _cogl_matrix_prefix_print ("    ", &mult->matrix);
+            graphene_matrix_print (&mult->matrix);
             continue;
           }
         case COGL_MATRIX_OP_LOAD:
           {
             CoglMatrixEntryLoad *load = (CoglMatrixEntryLoad *)entry;
             g_print ("  LOAD:\n");
-            _cogl_matrix_prefix_print ("    ", &load->matrix);
+            graphene_matrix_print (&load->matrix);
             continue;
           }
         case COGL_MATRIX_OP_SAVE: