From 0d6eae052352dfa39a2442f252133988ecfb28ba Mon Sep 17 00:00:00 2001
From: thejch <66577496+thejch@users.noreply.github.com>
Date: Fri, 24 May 2024 11:50:22 -0700
Subject: [PATCH] pointer: add back nvidia hardware cursor quirks (#6220)

---
 src/managers/PointerManager.cpp | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/managers/PointerManager.cpp b/src/managers/PointerManager.cpp
index 636eab1d..b199881e 100644
--- a/src/managers/PointerManager.cpp
+++ b/src/managers/PointerManager.cpp
@@ -119,7 +119,17 @@ static bool output_pick_cursor_format(struct wlr_output* output, struct wlr_drm_
         }
     }
 
-    return output_pick_format(output, display_formats, format, DRM_FORMAT_ARGB8888);
+    // Note: taken from https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/4596/diffs#diff-content-e3ea164da86650995728d70bd118f6aa8c386797
+    // If this fails to find a shared modifier try to use a linear
+    // modifier. This avoids a scenario where the hardware cannot render to
+    // linear textures but only linear textures are supported for cursors,
+    // as is the case with Nvidia and VmWare GPUs
+    if (!output_pick_format(output, display_formats, format, DRM_FORMAT_ARGB8888)) {
+        // Clear the format as output_pick_format doesn't zero it
+        memset(format, 0, sizeof(*format));
+        return output_pick_format(output, NULL, format, DRM_FORMAT_ARGB8888);
+    }
+    return true;
 }
 
 CPointerManager::CPointerManager() {