[gtk/gl-linear: 20/21] Update gsk tests

[Matthias Clasen <matthiasc src gnome org>]

commit 60e37d3368dbbec6b4747be3c7b570d2c47e77e3
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Sep 2 18:05:16 2020 -0400

    Update gsk tests
    
    Add a clip-coordinates-2d test that is similar
    to clip-coordinates-3d, but actually uses a 2D
    transform.

 testsuite/gsk/compare/clip-coordinates-2d.node |  22 ++++++++++++++++++++++
 testsuite/gsk/compare/clip-coordinates-2d.png  | Bin 0 -> 269 bytes
 testsuite/gsk/meson.build                      |   1 +
 3 files changed, 23 insertions(+)
---
diff --git a/testsuite/gsk/compare/clip-coordinates-2d.node b/testsuite/gsk/compare/clip-coordinates-2d.node
new file mode 100644
index 0000000000..973f50e1dd
--- /dev/null
+++ b/testsuite/gsk/compare/clip-coordinates-2d.node
@@ -0,0 +1,22 @@
+/* This test checks that we get sharp clip boundaries
+ * for 2d transforms. Compare with clip-coordinates-3d.node,
+ * which uses a general transform and gets offscreen
+ * rendering with GL_LINEAR.
+ */
+transform {
+  transform: scale(2);
+  child: container {
+    color {
+      bounds: 0 0 50 50;
+      color: transparent;
+    }
+
+    clip {
+      clip: 10 10 30 30;
+      child: color {
+        bounds: 0 0 50 50;
+        color: red;
+      }
+    }
+  }
+}
diff --git a/testsuite/gsk/compare/clip-coordinates-2d.png b/testsuite/gsk/compare/clip-coordinates-2d.png
new file mode 100644
index 0000000000..1da0014351
Binary files /dev/null and b/testsuite/gsk/compare/clip-coordinates-2d.png differ
diff --git a/testsuite/gsk/meson.build b/testsuite/gsk/meson.build
index 01e6b38a74..e99f8dc1c2 100644
--- a/testsuite/gsk/meson.build
+++ b/testsuite/gsk/meson.build
@@ -22,6 +22,7 @@ node_parser = executable(
 compare_render_tests = [
   'blend-normal',
   'blend-difference',
+  'clip-coordinates-2d',
   'clip-coordinates-3d',
   'clipped_rounded_clip',
   'color-blur0',