[gtk/wip/baedert/for-master: 2/3] gl renderer: Unify viewport setting in add_offscreen_ops()

[Timm Bäder <baedert src gnome org>]

commit 59520420f0a999c0412d342c3ac60a05019a5fc1
Author: Timm Bäder <mail baedert org>
Date:   Sat Dec 12 14:45:11 2020 +0100

    gl renderer: Unify viewport setting in add_offscreen_ops()
    
    We use the same rect here a few times.

 gsk/gl/gskglrenderer.c      | 21 +++++++--------------
 gsk/gskroundedrectprivate.h | 10 ++++++++++
 2 files changed, 17 insertions(+), 14 deletions(-)
---
diff --git a/gsk/gl/gskglrenderer.c b/gsk/gl/gskglrenderer.c
index 1731b7ca46..0b7a45800c 100644
--- a/gsk/gl/gskglrenderer.c
+++ b/gsk/gl/gskglrenderer.c
@@ -3839,6 +3839,7 @@ add_offscreen_ops (GskGLRenderer         *self,
   int filter;
   GskTextureKey key;
   int cached_id;
+  graphene_rect_t viewport;
 
   if (node_is_invisible (child_node))
     {
@@ -3924,27 +3925,19 @@ add_offscreen_ops (GskGLRenderer         *self,
                                           render_target);
     }
 
-  init_projection_matrix (&item_proj,
-                          &GRAPHENE_RECT_INIT (
-                            bounds->origin.x * scale_x,
-                            bounds->origin.y * scale_y,
-                            width, height
-                         ));
+  viewport = GRAPHENE_RECT_INIT (bounds->origin.x * scale_x,
+                                 bounds->origin.y * scale_y,
+                                 width, height);
 
+  init_projection_matrix (&item_proj, &viewport);
   prev_render_target = ops_set_render_target (builder, render_target);
   /* Clear since we use this rendertarget for the first time */
   ops_begin (builder, OP_CLEAR);
   prev_projection = ops_set_projection (builder, &item_proj);
   ops_set_modelview (builder, gsk_transform_scale (NULL, scale_x, scale_y));
-  prev_viewport = ops_set_viewport (builder,
-                                    &GRAPHENE_RECT_INIT (bounds->origin.x * scale_x,
-                                                         bounds->origin.y * scale_y,
-                                                         width, height));
+  prev_viewport = ops_set_viewport (builder, &viewport);
   if (flags & RESET_CLIP)
-    ops_push_clip (builder,
-                   &GSK_ROUNDED_RECT_INIT (bounds->origin.x * scale_x,
-                                           bounds->origin.y * scale_y,
-                                           width, height));
+    ops_push_clip (builder, &GSK_ROUNDED_RECT_INIT_FROM_RECT (viewport));
 
   builder->dx = 0;
   builder->dy = 0;
diff --git a/gsk/gskroundedrectprivate.h b/gsk/gskroundedrectprivate.h
index 5c2912b492..bddd4ea18c 100644
--- a/gsk/gskroundedrectprivate.h
+++ b/gsk/gskroundedrectprivate.h
@@ -7,6 +7,16 @@
 
 G_BEGIN_DECLS
 
+#define GSK_ROUNDED_RECT_INIT_FROM_RECT(_r)   \
+  (GskRoundedRect) { .bounds = _r, \
+                     .corner = { \
+                        GRAPHENE_SIZE_INIT(0, 0),\
+                        GRAPHENE_SIZE_INIT(0, 0),\
+                        GRAPHENE_SIZE_INIT(0, 0),\
+                        GRAPHENE_SIZE_INIT(0, 0),\
+                     }}
+
+
 gboolean                 gsk_rounded_rect_is_circular           (const GskRoundedRect     *self);
 
 void                     gsk_rounded_rect_path                  (const GskRoundedRect     *self,