From 1afc7a92107e0b3d3df0c7e6f0921a6fa8e8bb2b Mon Sep 17 00:00:00 2001
From: Benjamin Otte <otte@redhat.com>
Date: Wed, 14 Feb 2024 00:18:43 +0100
Subject: [PATCH] testsuite: Add a test for scaled texture clipping

This tests that the result is suitably clipped for doing linear
blending - the rightmost green pixel that is technically offscreen
is blending into the red pixel and turning the test yellow.

Cairo gets this wrong for some reason I didn't investigate.
---
 .../scaled-texture-scale-clip-nocairo.node      |  16 ++++++++++++++++
 .../scaled-texture-scale-clip-nocairo.png       | Bin 0 -> 78 bytes
 testsuite/gsk/meson.build                       |   1 +
 3 files changed, 17 insertions(+)
 create mode 100644 testsuite/gsk/compare/scaled-texture-scale-clip-nocairo.node
 create mode 100644 testsuite/gsk/compare/scaled-texture-scale-clip-nocairo.png

diff --git a/testsuite/gsk/compare/scaled-texture-scale-clip-nocairo.node b/testsuite/gsk/compare/scaled-texture-scale-clip-nocairo.node
new file mode 100644
index 0000000000..af51e5e501
--- /dev/null
+++ b/testsuite/gsk/compare/scaled-texture-scale-clip-nocairo.node
@@ -0,0 +1,16 @@
+clip {
+  clip: 35 1 2 2;
+  child: color-matrix {
+    matrix: matrix3d(1000, 0, 0, 0, 0, 1000, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    child: transform {
+      transform: scale(8);
+      child: texture-scale {
+        bounds: 0 0 10 10;
+        filter: nearest;
+        texture: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAIAAAABCAYAAAD0In+KAAAAEUlEQVQImWP4z8Dwn+E/w38AEPgD\
+/V+dao0AAAAASUVORK5CYII=\
+");
+      }
+    }
+  }
+}
diff --git a/testsuite/gsk/compare/scaled-texture-scale-clip-nocairo.png b/testsuite/gsk/compare/scaled-texture-scale-clip-nocairo.png
new file mode 100644
index 0000000000000000000000000000000000000000..c328dd89fb639b383b6bfb43116277bb35930a4b
GIT binary patch
literal 78
zcmeAS@N?(olHy`uVBq!ia0vp^Od!m`1|*BN@u~nRQBN1g5RRG2f6gEHF#n-FGqW(W
a2m^yQH#6ggTKNv30tQc4KbLh*2~7Yw!VvBN

literal 0
HcmV?d00001

diff --git a/testsuite/gsk/meson.build b/testsuite/gsk/meson.build
index c7225d2045..9a70f40256 100644
--- a/testsuite/gsk/meson.build
+++ b/testsuite/gsk/meson.build
@@ -134,6 +134,7 @@ compare_render_tests = [
   'scaled-cairo',
   'scaled-texture',
   'scaled-texture-scale',
+  'scaled-texture-scale-clip-nocairo',
   'scale0-crash',
   'shadow-behind',
   'shadow-clip-contents',