1 files changed, 30 insertions, 0 deletions
diff --git a/gfx/layers/mlgpu/ClearRegionHelper.h b/gfx/layers/mlgpu/ClearRegionHelper.h
new file mode 100644
index 0000000000..910972c9c1
--- /dev/null
+++ b/gfx/layers/mlgpu/ClearRegionHelper.h
@@ -0,0 +1,30 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_gfx_layers_mlgpu_ClearRegionHelper_h
+#define mozilla_gfx_layers_mlgpu_ClearRegionHelper_h
+
+#include "SharedBufferMLGPU.h"
+
+namespace mozilla {
+namespace layers {
+
+// This is a helper class for issuing a clear operation based on either
+// a shader or an API like ClearView. It also works when the depth
+// buffer is enabled.
+struct ClearRegionHelper {
+  // If using ClearView-based clears, we fill mRegions.
+  nsTArray<gfx::IntRect> mRects;
+
+  // If using shader-based clears, we fill these buffers.
+  VertexBufferSection mInput;
+  ConstantBufferSection mVSBuffer;
+};
+
+}  // namespace layers
+}  // namespace mozilla
+
+#endif  // mozilla_gfx_layers_mlgpu_ClearRegionHelper_h