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+/*
+ * Copyright (C) 2012 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_CAMERA2_CALLBACKPROCESSOR_H
+#define ANDROID_SERVERS_CAMERA_CAMERA2_CALLBACKPROCESSOR_H
+
+#include <utils/Thread.h>
+#include <utils/String16.h>
+#include <utils/Vector.h>
+#include <utils/Mutex.h>
+#include <utils/Condition.h>
+#include <gui/CpuConsumer.h>
+
+#include "api1/client2/Camera2Heap.h"
+
+namespace android {
+
+class Camera2Client;
+class CameraDeviceBase;
+
+namespace camera2 {
+
+class Parameters;
+
+/***
+ * Still image capture output image processing
+ */
+class CallbackProcessor:
+ public Thread, public CpuConsumer::FrameAvailableListener {
+ public:
+ CallbackProcessor(sp<Camera2Client> client);
+ ~CallbackProcessor();
+
+ void onFrameAvailable();
+
+ // Set to NULL to disable the direct-to-app callback window
+ status_t setCallbackWindow(sp<ANativeWindow> callbackWindow);
+ status_t updateStream(const Parameters &params);
+ status_t deleteStream();
+ int getStreamId() const;
+
+ void dump(int fd, const Vector<String16>& args) const;
+ private:
+ static const nsecs_t kWaitDuration = 10000000; // 10 ms
+ wp<Camera2Client> mClient;
+ wp<CameraDeviceBase> mDevice;
+ int mId;
+
+ mutable Mutex mInputMutex;
+ bool mCallbackAvailable;
+ Condition mCallbackAvailableSignal;
+
+ enum {
+ NO_STREAM = -1
+ };
+
+ // True if mCallbackWindow is a remote consumer, false if just the local
+ // mCallbackConsumer
+ bool mCallbackToApp;
+ int mCallbackStreamId;
+ static const size_t kCallbackHeapCount = 6;
+ sp<CpuConsumer> mCallbackConsumer;
+ sp<ANativeWindow> mCallbackWindow;
+ sp<Camera2Heap> mCallbackHeap;
+ int mCallbackHeapId;
+ size_t mCallbackHeapHead, mCallbackHeapFree;
+
+ virtual bool threadLoop();
+
+ status_t processNewCallback(sp<Camera2Client> &client);
+ // Used when shutting down
+ status_t discardNewCallback();
+
+ // Convert from flexible YUV to NV21 or YV12
+ status_t convertFromFlexibleYuv(int32_t previewFormat,
+ uint8_t *dst,
+ const CpuConsumer::LockedBuffer &src,
+ uint32_t dstYStride,
+ uint32_t dstCStride) const;
+};
+
+
+}; //namespace camera2
+}; //namespace android
+
+#endif