1 files changed, 55 insertions, 0 deletions
diff --git a/intern/cycles/device/device_graphics_interop.h b/intern/cycles/device/device_graphics_interop.h
new file mode 100644
index 00000000000..671b1c189d7
--- /dev/null
+++ b/intern/cycles/device/device_graphics_interop.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2011-2021 Blender Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "util/util_types.h"
+
+CCL_NAMESPACE_BEGIN
+
+/* Information about interoperability destination.
+ * Is provided by the GPUDisplay. */
+class DeviceGraphicsInteropDestination {
+ public:
+  /* Dimensions of the buffer, in pixels. */
+  int buffer_width = 0;
+  int buffer_height = 0;
+
+  /* OpenGL pixel buffer object. */
+  int opengl_pbo_id = 0;
+
+  /* Clear the entire destination before doing partial write to it. */
+  bool need_clear = false;
+};
+
+/* Device-side graphics interoperability support.
+ *
+ * Takes care of holding all the handlers needed by the device to implement interoperability with
+ * the graphics library. */
+class DeviceGraphicsInterop {
+ public:
+  DeviceGraphicsInterop() = default;
+  virtual ~DeviceGraphicsInterop() = default;
+
+  /* Update this device-side graphics interoperability object with the given destination resource
+   * information. */
+  virtual void set_destination(const DeviceGraphicsInteropDestination &destination) = 0;
+
+  virtual device_ptr map() = 0;
+  virtual void unmap() = 0;
+};
+
+CCL_NAMESPACE_END