Import goldfish HAL sources from devices/generic/goldfish

We import all code here so we can customize and keep in sync with what
we do on the host side more easily.

android/camera/fake-pipeline2/JpegCompressor.h

@@ -0,0 +1,120 @@
+/*
+ * 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.
+ */
+
+
+/**
+ * This class simulates a hardware JPEG compressor.  It receives image buffers
+ * in RGBA_8888 format, processes them in a worker thread, and then pushes them
+ * out to their destination stream.
+ */
+
+#ifndef HW_EMULATOR_CAMERA2_JPEG_H
+#define HW_EMULATOR_CAMERA2_JPEG_H
+
+#include "utils/Thread.h"
+#include "utils/Mutex.h"
+#include "utils/Timers.h"
+
+#include "Base.h"
+
+#include <stdio.h>
+
+extern "C" {
+#include <jpeglib.h>
+}
+
+namespace android {
+
+class JpegCompressor: private Thread, public virtual RefBase {
+  public:
+
+    JpegCompressor();
+    ~JpegCompressor();
+
+    struct JpegListener {
+        // Called when JPEG compression has finished, or encountered an error
+        virtual void onJpegDone(const StreamBuffer &jpegBuffer,
+                bool success) = 0;
+        // Called when the input buffer for JPEG is not needed any more,
+        // if the buffer came from the framework.
+        virtual void onJpegInputDone(const StreamBuffer &inputBuffer) = 0;
+        virtual ~JpegListener();
+    };
+
+    // Start compressing COMPRESSED format buffers; JpegCompressor takes
+    // ownership of the Buffers vector.
+    status_t start(Buffers *buffers, JpegListener *listener);
+
+    // Compress and block until buffer is complete.
+    status_t compressSynchronous(Buffers *buffers);
+
+    status_t cancel();
+
+    bool isBusy();
+    bool isStreamInUse(uint32_t id);
+
+    bool waitForDone(nsecs_t timeout);
+
+    // TODO: Measure this
+    static const size_t kMaxJpegSize = 300000;
+
+  private:
+    Mutex mBusyMutex;
+    bool mIsBusy;
+    Condition mDone;
+    bool mSynchronous;
+
+    Mutex mMutex;
+
+    Buffers *mBuffers;
+    JpegListener *mListener;
+
+    StreamBuffer mJpegBuffer, mAuxBuffer;
+    bool mFoundJpeg, mFoundAux;
+
+    jpeg_compress_struct mCInfo;
+
+    struct JpegError : public jpeg_error_mgr {
+        JpegCompressor *parent;
+    };
+    j_common_ptr mJpegErrorInfo;
+
+    struct JpegDestination : public jpeg_destination_mgr {
+        JpegCompressor *parent;
+    };
+
+    static void jpegErrorHandler(j_common_ptr cinfo);
+
+    static void jpegInitDestination(j_compress_ptr cinfo);
+    static boolean jpegEmptyOutputBuffer(j_compress_ptr cinfo);
+    static void jpegTermDestination(j_compress_ptr cinfo);
+
+    bool checkError(const char *msg);
+    status_t compress();
+
+    void cleanUp();
+
+    /**
+     * Inherited Thread virtual overrides
+     */
+  private:
+    virtual status_t readyToRun();
+    virtual bool threadLoop();
+};
+
+} // namespace android
+
+#endif