private void setSnapshotTransformInTransaction(Matrix matrix, float alpha) {
   if (mSurface != null) {
     matrix.getValues(mTmpFloats);
     mSurface.setPosition(mTmpFloats[Matrix.MTRANS_X], mTmpFloats[Matrix.MTRANS_Y]);
     mSurface.setMatrix(
         mTmpFloats[Matrix.MSCALE_X], mTmpFloats[Matrix.MSKEW_Y],
         mTmpFloats[Matrix.MSKEW_X], mTmpFloats[Matrix.MSCALE_Y]);
     mSurface.setAlpha(alpha);
     if (DEBUG_TRANSFORMS) {
       float[] srcPnts = new float[] {0, 0, mWidth, mHeight};
       float[] dstPnts = new float[4];
       matrix.mapPoints(dstPnts, srcPnts);
       /** M:Change the tag to WindowManager */
       Slog.i(
           WindowManagerService.TAG,
           "Original  : ("
               + srcPnts[0]
               + ","
               + srcPnts[1]
               + ")-("
               + srcPnts[2]
               + ","
               + srcPnts[3]
               + ")");
       Slog.i(
           WindowManagerService.TAG,
           "Transformed: ("
               + dstPnts[0]
               + ","
               + dstPnts[1]
               + ")-("
               + dstPnts[2]
               + ","
               + dstPnts[3]
               + ")");
     }
   }
 }
 void setSnapshotTransform(Matrix matrix, float alpha) {
   if (mSurface != null) {
     matrix.getValues(mTmpFloats);
     mSurface.setPosition(mTmpFloats[Matrix.MTRANS_X], mTmpFloats[Matrix.MTRANS_Y]);
     mSurface.setMatrix(
         mTmpFloats[Matrix.MSCALE_X], mTmpFloats[Matrix.MSKEW_Y],
         mTmpFloats[Matrix.MSKEW_X], mTmpFloats[Matrix.MSCALE_Y]);
     mSurface.setAlpha(alpha);
     if (DEBUG) {
       float[] srcPnts = new float[] {0, 0, mWidth, mHeight};
       float[] dstPnts = new float[4];
       matrix.mapPoints(dstPnts, srcPnts);
       Slog.i(
           TAG,
           "Original  : ("
               + srcPnts[0]
               + ","
               + srcPnts[1]
               + ")-("
               + srcPnts[2]
               + ","
               + srcPnts[3]
               + ")");
       Slog.i(
           TAG,
           "Transformed: ("
               + dstPnts[0]
               + ","
               + dstPnts[1]
               + ")-("
               + dstPnts[2]
               + ","
               + dstPnts[3]
               + ")");
     }
   }
 }