Camera: Start of support for version 3.0 of camera device HAL
- Refactor common CameraDevice interface out of Camera2Device
- Initial skeleton only for Camera3Device
Change-Id: I097cc76e2ad102a51712ac114235163245f5482c
diff --git a/services/camera/libcameraservice/Camera3Device.h b/services/camera/libcameraservice/Camera3Device.h
new file mode 100644
index 0000000..2bc7cf0
--- /dev/null
+++ b/services/camera/libcameraservice/Camera3Device.h
@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * 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.
+ */
+
+#ifndef ANDROID_SERVERS_CAMERA_CAMERA3DEVICE_H
+#define ANDROID_SERVERS_CAMERA_CAMERA3DEVICE_H
+
+#include <utils/Condition.h>
+#include <utils/Errors.h>
+#include <utils/List.h>
+#include <utils/Mutex.h>
+#include <utils/Thread.h>
+
+#include "CameraDeviceBase.h"
+
+#include "hardware/camera3.h"
+
+/**
+ * Function pointer types with C calling convention to
+ * use for HAL callback functions.
+ */
+extern "C" {
+ typedef void (callbacks_process_capture_result_t)(
+ const struct camera3_callback_ops *,
+ const camera3_capture_result_t *);
+
+ typedef void (callbacks_notify_t)(
+ const struct camera3_callback_ops *,
+ const camera3_notify_msg_t *);
+}
+
+namespace android {
+
+/**
+ * CameraDevice for HAL devices with version CAMERA_DEVICE_API_VERSION_3_0
+ */
+class Camera3Device :
+ public CameraDeviceBase,
+ private camera3_callback_ops {
+ public:
+ Camera3Device(int id);
+
+ virtual ~Camera3Device();
+
+ /**
+ * CameraDevice interface
+ */
+ virtual status_t initialize(camera_module_t *module);
+ virtual status_t disconnect();
+ virtual status_t dump(int fd, const Vector<String16> &args);
+ virtual const CameraMetadata& info() const;
+ virtual status_t capture(CameraMetadata &request);
+ virtual status_t setStreamingRequest(const CameraMetadata &request);
+ virtual status_t clearStreamingRequest();
+ virtual status_t waitUntilRequestReceived(int32_t requestId, nsecs_t timeout);
+ virtual status_t createStream(sp<ANativeWindow> consumer,
+ uint32_t width, uint32_t height, int format, size_t size,
+ int *id);
+ virtual status_t createReprocessStreamFromStream(int outputId, int *id);
+ virtual status_t getStreamInfo(int id,
+ uint32_t *width, uint32_t *height, uint32_t *format);
+ virtual status_t setStreamTransform(int id, int transform);
+ virtual status_t deleteStream(int id);
+ virtual status_t deleteReprocessStream(int id);
+ virtual status_t createDefaultRequest(int templateId, CameraMetadata *request);
+ virtual status_t waitUntilDrained();
+ virtual status_t setNotifyCallback(NotificationListener *listener);
+ virtual status_t waitForNextFrame(nsecs_t timeout);
+ virtual status_t getNextFrame(CameraMetadata *frame);
+ virtual status_t triggerAutofocus(uint32_t id);
+ virtual status_t triggerCancelAutofocus(uint32_t id);
+ virtual status_t triggerPrecaptureMetering(uint32_t id);
+ virtual status_t pushReprocessBuffer(int reprocessStreamId,
+ buffer_handle_t *buffer, wp<BufferReleasedListener> listener);
+
+ private:
+ const int mId;
+ camera3_device_t *mHal3Device;
+
+ CameraMetadata mDeviceInfo;
+ vendor_tag_query_ops_t mVendorTagOps;
+
+ /**
+ * Thread for managing capture request submission to HAL device.
+ */
+ class RequestThread: public Thread {
+
+ public:
+
+ RequestThread(wp<Camera3Device> parent);
+
+ protected:
+
+ virtual bool threadLoop();
+
+ private:
+
+ wp<Camera3Device> mParent;
+
+ };
+ sp<RequestThread> requestThread;
+
+ /**
+ * Callback functions from HAL device
+ */
+ void processCaptureResult(const camera3_capture_result *result);
+
+ void notify(const camera3_notify_msg *msg);
+
+ /**
+ * Static callback forwarding methods from HAL to instance
+ */
+ static callbacks_process_capture_result_t sProcessCaptureResult;
+
+ static callbacks_notify_t sNotify;
+
+}; // class Camera3Device
+
+}; // namespace android
+
+#endif