From a0bd59e76d9bf4cec9f3914af844156a432c88ac Mon Sep 17 00:00:00 2001
From: Benjamin Otte <otte@redhat.com>
Date: Thu, 7 Sep 2023 23:02:37 +0200
Subject: [PATCH] glrenderer: Shadows without offset do exist

Not for opaque contents, but stuff can be semi-transparent.

Testcase included.
---
 gsk/gl/gskglrenderjob.c                  |   4 ----
 testsuite/gsk/compare/shadow-behind.node |   7 +++++++
 testsuite/gsk/compare/shadow-behind.png  | Bin 0 -> 147 bytes
 testsuite/gsk/meson.build                |   1 +
 4 files changed, 8 insertions(+), 4 deletions(-)
 create mode 100644 testsuite/gsk/compare/shadow-behind.node
 create mode 100644 testsuite/gsk/compare/shadow-behind.png

diff --git a/gsk/gl/gskglrenderjob.c b/gsk/gl/gskglrenderjob.c
index c862cb50a3..6f3db87c24 100644
--- a/gsk/gl/gskglrenderjob.c
+++ b/gsk/gl/gskglrenderjob.c
@@ -3153,10 +3153,6 @@ gsk_gl_render_job_visit_shadow_node (GskGLRenderJob      *job,
 
           offscreen.was_offscreen = TRUE;
         }
-      else if (dx == 0 && dy == 0)
-        {
-          continue; /* Invisible anyway */
-        }
       else
         {
           offscreen.bounds = &shadow_child->bounds;
diff --git a/testsuite/gsk/compare/shadow-behind.node b/testsuite/gsk/compare/shadow-behind.node
new file mode 100644
index 0000000000..2ab2225ee0
--- /dev/null
+++ b/testsuite/gsk/compare/shadow-behind.node
@@ -0,0 +1,7 @@
+shadow {
+  shadows: rgb(255,0,0) 0 0;
+  child: color {
+    bounds: 0 0 50 50;
+    color: rgba(0,0,255,0.6);
+  }
+}
diff --git a/testsuite/gsk/compare/shadow-behind.png b/testsuite/gsk/compare/shadow-behind.png
new file mode 100644
index 0000000000000000000000000000000000000000..1fd035d962d452bffa91febdc7dec46674414228
GIT binary patch
literal 147
zcmeAS@N?(olHy`uVBq!ia0vp^Mj*_=1|;R|J2nETC{Gv1kc`H+=NWkqC@>r_=(FaD
zKlL@CspV;=XwG@5_vUp8_xLQ1dh|||QZ{wV>bWAZ(l97_$uWWgY0P`xF<G9vXt5J$
O3xlVtpUXO@geCx;Co$9j

literal 0
HcmV?d00001

diff --git a/testsuite/gsk/meson.build b/testsuite/gsk/meson.build
index 944d4f8f99..53da9d1dcc 100644
--- a/testsuite/gsk/meson.build
+++ b/testsuite/gsk/meson.build
@@ -89,6 +89,7 @@ compare_render_tests = [
   'scale-up-down',
   'scaled-cairo',
   'scaled-texture',
+  'shadow-behind',
   'shadow-in-opacity',
   'shadow-opacity',
   'texture-scale-magnify-10000x',
-- 
2.30.2