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diff --git a/src/type3_AndroidCloud/anbox-master/android/camera/EmulatedFakeCameraDevice.cpp b/src/type3_AndroidCloud/anbox-master/android/camera/EmulatedFakeCameraDevice.cpp
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+/*
+ * Copyright (C) 2011 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.
+ */
+
+/*
+ * Contains implementation of a class EmulatedFakeCameraDevice that encapsulates
+ * fake camera device.
+ */
+
+#define LOG_NDEBUG 0
+#define LOG_TAG "EmulatedCamera_FakeDevice"
+#include <cutils/log.h>
+#include "EmulatedFakeCamera.h"
+#include "EmulatedFakeCameraDevice.h"
+
+namespace android {
+
+EmulatedFakeCameraDevice::EmulatedFakeCameraDevice(EmulatedFakeCamera* camera_hal)
+    : EmulatedCameraDevice(camera_hal),
+      mBlackYUV(kBlack32),
+      mWhiteYUV(kWhite32),
+      mRedYUV(kRed8),
+      mGreenYUV(kGreen8),
+      mBlueYUV(kBlue8),
+      mLastRedrawn(0),
+      mCheckX(0),
+      mCheckY(0),
+      mCcounter(0)
+#if EFCD_ROTATE_FRAME
+      , mLastRotatedAt(0),
+        mCurrentFrameType(0),
+        mCurrentColor(&mWhiteYUV)
+#endif  // EFCD_ROTATE_FRAME
+{
+    // Makes the image with the original exposure compensation darker.
+    // So the effects of changing the exposure compensation can be seen.
+    mBlackYUV.Y = mBlackYUV.Y / 2;
+    mWhiteYUV.Y = mWhiteYUV.Y / 2;
+    mRedYUV.Y = mRedYUV.Y / 2;
+    mGreenYUV.Y = mGreenYUV.Y / 2;
+    mBlueYUV.Y = mBlueYUV.Y / 2;
+}
+
+EmulatedFakeCameraDevice::~EmulatedFakeCameraDevice()
+{
+}
+
+/****************************************************************************
+ * Emulated camera device abstract interface implementation.
+ ***************************************************************************/
+
+status_t EmulatedFakeCameraDevice::connectDevice()
+{
+    ALOGV("%s", __FUNCTION__);
+
+    Mutex::Autolock locker(&mObjectLock);
+    if (!isInitialized()) {
+        ALOGE("%s: Fake camera device is not initialized.", __FUNCTION__);
+        return EINVAL;
+    }
+    if (isConnected()) {
+        ALOGW("%s: Fake camera device is already connected.", __FUNCTION__);
+        return NO_ERROR;
+    }
+
+    /* There is no device to connect to. */
+    mState = ECDS_CONNECTED;
+
+    return NO_ERROR;
+}
+
+status_t EmulatedFakeCameraDevice::disconnectDevice()
+{
+    ALOGV("%s", __FUNCTION__);
+
+    Mutex::Autolock locker(&mObjectLock);
+    if (!isConnected()) {
+        ALOGW("%s: Fake camera device is already disconnected.", __FUNCTION__);
+        return NO_ERROR;
+    }
+    if (isStarted()) {
+        ALOGE("%s: Cannot disconnect from the started device.", __FUNCTION__);
+        return EINVAL;
+    }
+
+    /* There is no device to disconnect from. */
+    mState = ECDS_INITIALIZED;
+
+    return NO_ERROR;
+}
+
+status_t EmulatedFakeCameraDevice::startDevice(int width,
+                                               int height,
+                                               uint32_t pix_fmt)
+{
+    ALOGV("%s", __FUNCTION__);
+
+    Mutex::Autolock locker(&mObjectLock);
+    if (!isConnected()) {
+        ALOGE("%s: Fake camera device is not connected.", __FUNCTION__);
+        return EINVAL;
+    }
+    if (isStarted()) {
+        ALOGE("%s: Fake camera device is already started.", __FUNCTION__);
+        return EINVAL;
+    }
+
+    /* Initialize the base class. */
+    const status_t res =
+        EmulatedCameraDevice::commonStartDevice(width, height, pix_fmt);
+    if (res == NO_ERROR) {
+        /* Calculate U/V panes inside the framebuffer. */
+        switch (mPixelFormat) {
+            case V4L2_PIX_FMT_YVU420:
+                mFrameV = mCurrentFrame + mTotalPixels;
+                mFrameU = mFrameU + mTotalPixels / 4;
+                mUVStep = 1;
+                mUVTotalNum = mTotalPixels / 4;
+                break;
+
+            case V4L2_PIX_FMT_YUV420:
+                mFrameU = mCurrentFrame + mTotalPixels;
+                mFrameV = mFrameU + mTotalPixels / 4;
+                mUVStep = 1;
+                mUVTotalNum = mTotalPixels / 4;
+                break;
+
+            case V4L2_PIX_FMT_NV21:
+                /* Interleaved UV pane, V first. */
+                mFrameV = mCurrentFrame + mTotalPixels;
+                mFrameU = mFrameV + 1;
+                mUVStep = 2;
+                mUVTotalNum = mTotalPixels / 4;
+                break;
+
+            case V4L2_PIX_FMT_NV12:
+                /* Interleaved UV pane, U first. */
+                mFrameU = mCurrentFrame + mTotalPixels;
+                mFrameV = mFrameU + 1;
+                mUVStep = 2;
+                mUVTotalNum = mTotalPixels / 4;
+                break;
+
+            default:
+                ALOGE("%s: Unknown pixel format %.4s", __FUNCTION__,
+                     reinterpret_cast<const char*>(&mPixelFormat));
+                return EINVAL;
+        }
+        /* Number of items in a single row inside U/V panes. */
+        mUVInRow = (width / 2) * mUVStep;
+        mState = ECDS_STARTED;
+    } else {
+        ALOGE("%s: commonStartDevice failed", __FUNCTION__);
+    }
+
+    return res;
+}
+
+status_t EmulatedFakeCameraDevice::stopDevice()
+{
+    ALOGV("%s", __FUNCTION__);
+
+    Mutex::Autolock locker(&mObjectLock);
+    if (!isStarted()) {
+        ALOGW("%s: Fake camera device is not started.", __FUNCTION__);
+        return NO_ERROR;
+    }
+
+    mFrameU = mFrameV = NULL;
+    EmulatedCameraDevice::commonStopDevice();
+    mState = ECDS_CONNECTED;
+
+    return NO_ERROR;
+}
+
+/****************************************************************************
+ * Worker thread management overrides.
+ ***************************************************************************/
+
+bool EmulatedFakeCameraDevice::inWorkerThread()
+{
+    /* Wait till FPS timeout expires, or thread exit message is received. */
+    WorkerThread::SelectRes res =
+        getWorkerThread()->Select(-1, 1000000 / mEmulatedFPS);
+    if (res == WorkerThread::EXIT_THREAD) {
+        ALOGV("%s: Worker thread has been terminated.", __FUNCTION__);
+        return false;
+    }
+
+    /* Lets see if we need to generate a new frame. */
+    if ((systemTime(SYSTEM_TIME_MONOTONIC) - mLastRedrawn) >= mRedrawAfter) {
+        /*
+         * Time to generate a new frame.
+         */
+
+#if EFCD_ROTATE_FRAME
+        const int frame_type = rotateFrame();
+        switch (frame_type) {
+            case 0:
+                drawCheckerboard();
+                break;
+            case 1:
+                drawStripes();
+                break;
+            case 2:
+                drawSolid(mCurrentColor);
+                break;
+        }
+#else
+        /* Draw the checker board. */
+        drawCheckerboard();
+
+#endif  // EFCD_ROTATE_FRAME
+
+        mLastRedrawn = systemTime(SYSTEM_TIME_MONOTONIC);
+    }
+
+    /* Timestamp the current frame, and notify the camera HAL about new frame. */
+    mCurFrameTimestamp = systemTime(SYSTEM_TIME_MONOTONIC);
+    mCameraHAL->onNextFrameAvailable(mCurrentFrame, mCurFrameTimestamp, this);
+
+    return true;
+}
+
+/****************************************************************************
+ * Fake camera device private API
+ ***************************************************************************/
+
+void EmulatedFakeCameraDevice::drawCheckerboard()
+{
+    const int size = mFrameWidth / 10;
+    bool black = true;
+
+    if (size == 0) {
+        // When this happens, it happens at a very high rate,
+        //     so don't log any messages and just return.
+        return;
+    }
+
+
+    if((mCheckX / size) & 1)
+        black = false;
+    if((mCheckY / size) & 1)
+        black = !black;
+
+    int county = mCheckY % size;
+    int checkxremainder = mCheckX % size;
+    uint8_t* Y = mCurrentFrame;
+    uint8_t* U_pos = mFrameU;
+    uint8_t* V_pos = mFrameV;
+    uint8_t* U = U_pos;
+    uint8_t* V = V_pos;
+
+    YUVPixel adjustedWhite = YUVPixel(mWhiteYUV);
+    changeWhiteBalance(adjustedWhite.Y, adjustedWhite.U, adjustedWhite.V);
+
+    for(int y = 0; y < mFrameHeight; y++) {
+        int countx = checkxremainder;
+        bool current = black;
+        for(int x = 0; x < mFrameWidth; x += 2) {
+            if (current) {
+                mBlackYUV.get(Y, U, V);
+            } else {
+                adjustedWhite.get(Y, U, V);
+            }
+            *Y = changeExposure(*Y);
+            Y[1] = *Y;
+            Y += 2; U += mUVStep; V += mUVStep;
+            countx += 2;
+            if(countx >= size) {
+                countx = 0;
+                current = !current;
+            }
+        }
+        if (y & 0x1) {
+            U_pos = U;
+            V_pos = V;
+        } else {
+            U = U_pos;
+            V = V_pos;
+        }
+        if(county++ >= size) {
+            county = 0;
+            black = !black;
+        }
+    }
+    mCheckX += 3;
+    mCheckY++;
+
+    /* Run the square. */
+    int sqx = ((mCcounter * 3) & 255);
+    if(sqx > 128) sqx = 255 - sqx;
+    int sqy = ((mCcounter * 5) & 255);
+    if(sqy > 128) sqy = 255 - sqy;
+    const int sqsize = mFrameWidth / 10;
+    drawSquare(sqx * sqsize / 32, sqy * sqsize / 32, (sqsize * 5) >> 1,
+               (mCcounter & 0x100) ? &mRedYUV : &mGreenYUV);
+    mCcounter++;
+}
+
+void EmulatedFakeCameraDevice::drawSquare(int x,
+                                          int y,
+                                          int size,
+                                          const YUVPixel* color)
+{
+    const int square_xstop = min(mFrameWidth, x + size);
+    const int square_ystop = min(mFrameHeight, y + size);
+    uint8_t* Y_pos = mCurrentFrame + y * mFrameWidth + x;
+
+    YUVPixel adjustedColor = *color;
+    changeWhiteBalance(adjustedColor.Y, adjustedColor.U, adjustedColor.V);
+
+    // Draw the square.
+    for (; y < square_ystop; y++) {
+        const int iUV = (y / 2) * mUVInRow + (x / 2) * mUVStep;
+        uint8_t* sqU = mFrameU + iUV;
+        uint8_t* sqV = mFrameV + iUV;
+        uint8_t* sqY = Y_pos;
+        for (int i = x; i < square_xstop; i += 2) {
+            adjustedColor.get(sqY, sqU, sqV);
+            *sqY = changeExposure(*sqY);
+            sqY[1] = *sqY;
+            sqY += 2; sqU += mUVStep; sqV += mUVStep;
+        }
+        Y_pos += mFrameWidth;
+    }
+}
+
+#if EFCD_ROTATE_FRAME
+
+void EmulatedFakeCameraDevice::drawSolid(YUVPixel* color)
+{
+    YUVPixel adjustedColor = *color;
+    changeWhiteBalance(adjustedColor.Y, adjustedColor.U, adjustedColor.V);
+
+    /* All Ys are the same. */
+    memset(mCurrentFrame, changeExposure(adjustedColor.Y), mTotalPixels);
+
+    /* Fill U, and V panes. */
+    uint8_t* U = mFrameU;
+    uint8_t* V = mFrameV;
+    for (int k = 0; k < mUVTotalNum; k++, U += mUVStep, V += mUVStep) {
+        *U = color->U;
+        *V = color->V;
+    }
+}
+
+void EmulatedFakeCameraDevice::drawStripes()
+{
+    /* Divide frame into 4 stripes. */
+    const int change_color_at = mFrameHeight / 4;
+    const int each_in_row = mUVInRow / mUVStep;
+    uint8_t* pY = mCurrentFrame;
+    for (int y = 0; y < mFrameHeight; y++, pY += mFrameWidth) {
+        /* Select the color. */
+        YUVPixel* color;
+        const int color_index = y / change_color_at;
+        if (color_index == 0) {
+            /* White stripe on top. */
+            color = &mWhiteYUV;
+        } else if (color_index == 1) {
+            /* Then the red stripe. */
+            color = &mRedYUV;
+        } else if (color_index == 2) {
+            /* Then the green stripe. */
+            color = &mGreenYUV;
+        } else {
+            /* And the blue stripe at the bottom. */
+            color = &mBlueYUV;
+        }
+        changeWhiteBalance(color->Y, color->U, color->V);
+
+        /* All Ys at the row are the same. */
+        memset(pY, changeExposure(color->Y), mFrameWidth);
+
+        /* Offset of the current row inside U/V panes. */
+        const int uv_off = (y / 2) * mUVInRow;
+        /* Fill U, and V panes. */
+        uint8_t* U = mFrameU + uv_off;
+        uint8_t* V = mFrameV + uv_off;
+        for (int k = 0; k < each_in_row; k++, U += mUVStep, V += mUVStep) {
+            *U = color->U;
+            *V = color->V;
+        }
+    }
+}
+
+int EmulatedFakeCameraDevice::rotateFrame()
+{
+    if ((systemTime(SYSTEM_TIME_MONOTONIC) - mLastRotatedAt) >= mRotateFreq) {
+        mLastRotatedAt = systemTime(SYSTEM_TIME_MONOTONIC);
+        mCurrentFrameType++;
+        if (mCurrentFrameType > 2) {
+            mCurrentFrameType = 0;
+        }
+        if (mCurrentFrameType == 2) {
+            ALOGD("********** Rotated to the SOLID COLOR frame **********");
+            /* Solid color: lets rotate color too. */
+            if (mCurrentColor == &mWhiteYUV) {
+                ALOGD("----- Painting a solid RED frame -----");
+                mCurrentColor = &mRedYUV;
+            } else if (mCurrentColor == &mRedYUV) {
+                ALOGD("----- Painting a solid GREEN frame -----");
+                mCurrentColor = &mGreenYUV;
+            } else if (mCurrentColor == &mGreenYUV) {
+                ALOGD("----- Painting a solid BLUE frame -----");
+                mCurrentColor = &mBlueYUV;
+            } else {
+                /* Back to white. */
+                ALOGD("----- Painting a solid WHITE frame -----");
+                mCurrentColor = &mWhiteYUV;
+            }
+        } else if (mCurrentFrameType == 0) {
+            ALOGD("********** Rotated to the CHECKERBOARD frame **********");
+        } else if (mCurrentFrameType == 1) {
+            ALOGD("********** Rotated to the STRIPED frame **********");
+        }
+    }
+
+    return mCurrentFrameType;
+}
+
+#endif  // EFCD_ROTATE_FRAME
+
+}; /* namespace android */