android: framebuffer: Add HALFrameBuffer and replace FrameBuffer

HALFrameBuffer is derived from FrameBuffer with access to
buffer_handle_t, which is needed for JEA usage.

Signed-off-by: Harvey Yang <chenghaoyang@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Han-Lin Chen <hanlinchen@chromium.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

src/android/hal_framebuffer.h

@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2022, Google Inc.
+ *
+ * hal_framebuffer.h - HAL Frame Buffer Handling
+ */
+
+#pragma once
+
+#include "libcamera/internal/framebuffer.h"
+
+#include <hardware/camera3.h>
+
+class HALFrameBuffer final : public libcamera::FrameBuffer
+{
+public:
+	HALFrameBuffer(std::unique_ptr<Private> d,
+		       buffer_handle_t handle);
+	HALFrameBuffer(const std::vector<Plane> &planes,
+		       buffer_handle_t handle);
+
+	buffer_handle_t handle() const { return handle_; }
+
+private:
+	buffer_handle_t handle_;
+};