1 files changed, 119 insertions, 0 deletions
diff --git a/services/camera/libcameraservice/camera2/ZslProcessor.h b/services/camera/libcameraservice/camera2/ZslProcessor.h
new file mode 100644
index 0000000..74921a3
--- /dev/null
+++ b/services/camera/libcameraservice/camera2/ZslProcessor.h
@@ -0,0 +1,119 @@
+/*
+ * 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_ZSLPROCESSOR_H
+#define ANDROID_SERVERS_CAMERA_CAMERA2_ZSLPROCESSOR_H
+
+#include <utils/Thread.h>
+#include <utils/String16.h>
+#include <utils/Vector.h>
+#include <utils/Mutex.h>
+#include <utils/Condition.h>
+#include <gui/BufferItemConsumer.h>
+#include "Parameters.h"
+#include "FrameProcessor.h"
+#include "CameraMetadata.h"
+#include "Camera2Heap.h"
+#include "../Camera2Device.h"
+
+namespace android {
+
+class Camera2Client;
+
+namespace camera2 {
+
+class CaptureSequencer;
+
+/***
+ * ZSL queue processing
+ */
+class ZslProcessor:
+            virtual public Thread,
+            virtual public BufferItemConsumer::FrameAvailableListener,
+            virtual public FrameProcessor::FilteredListener,
+            virtual public Camera2Device::BufferReleasedListener {
+  public:
+    ZslProcessor(wp<Camera2Client> client, wp<CaptureSequencer> sequencer);
+    ~ZslProcessor();
+
+    // From mZslConsumer
+    virtual void onFrameAvailable();
+    // From FrameProcessor
+    virtual void onFrameAvailable(int32_t frameId, CameraMetadata &frame);
+
+    virtual void onBufferReleased(buffer_handle_t *handle);
+
+    status_t updateStream(const Parameters &params);
+    status_t deleteStream();
+    int getStreamId() const;
+    int getReprocessStreamId() const;
+
+    status_t pushToReprocess(int32_t requestId);
+
+    void dump(int fd, const Vector<String16>& args) const;
+  private:
+    static const nsecs_t kWaitDuration = 10000000; // 10 ms
+
+    enum {
+        RUNNING,
+        LOCKED
+    } mState;
+
+    wp<Camera2Client> mClient;
+    wp<CaptureSequencer> mSequencer;
+
+    mutable Mutex mInputMutex;
+    bool mZslBufferAvailable;
+    Condition mZslBufferAvailableSignal;
+
+    enum {
+        NO_STREAM = -1
+    };
+
+    int mZslStreamId;
+    int mZslReprocessStreamId;
+    sp<BufferItemConsumer> mZslConsumer;
+    sp<ANativeWindow>      mZslWindow;
+
+    struct ZslPair {
+        BufferItemConsumer::BufferItem buffer;
+        CameraMetadata frame;
+    };
+
+    static const size_t kZslBufferDepth = 3;
+    static const size_t kFrameListDepth = kZslBufferDepth * 2;
+    Vector<CameraMetadata> mFrameList;
+    size_t mFrameListHead;
+
+    ZslPair mNextPair;
+
+    Vector<ZslPair> mZslQueue;
+    size_t mZslQueueHead;
+    size_t mZslQueueTail;
+
+    virtual bool threadLoop();
+
+    status_t processNewZslBuffer(sp<Camera2Client> &client);
+
+    // Match up entries from frame list to buffers in ZSL queue
+    void findMatchesLocked();
+};
+
+
+}; //namespace camera2
+}; //namespace android
+
+#endif