Changeset 795 in 3DVCSoftware for branches/HTM-9.3-dev1-MediaTek/source/Lib/TLibCommon/TComSlice.cpp

Timestamp:

24 Jan 2014, 02:36:31 (10 years ago)

Author:

mediatek-htm

Message:

Integration of DDD (JCT3V-G0063)

File:

• branches/HTM-9.3-dev1-MediaTek/source/Lib/TLibCommon/TComSlice.cpp (modified) (2 diffs)

branches/HTM-9.3-dev1-MediaTek/source/Lib/TLibCommon/TComSlice.cpp

@@ -3272 +3272 @@
 #endif
 
+#if MTK_DDD_G0063
+  if( getIsDepth() && getViewIndex() > 0 )
+  {
+      TComSlice *pcTextSlice = getTexturePic()->getSlice( 0 );
+      memcpy( m_aiDDDInvScale, pcTextSlice->m_aiDDDInvScale, sizeof( Int ) * getViewIndex() );
+      memcpy( m_aiDDDInvOffset, pcTextSlice->m_aiDDDInvOffset, sizeof( Int ) * getViewIndex() );
+      memcpy( m_aiDDDShift, pcTextSlice->m_aiDDDShift, sizeof( Int ) * getViewIndex() );             
+  }  
+#endif 
+
   if( !setupLUT )
     return; 
@@ -3319 +3329 @@
       m_depthToDisparityF[ i ][ d ] = ( invCodScale[ i ] * d + invOffset ) >> log2Div; 
     }
-  }
-}
-#endif
-#endif
+
+#if MTK_DDD_G0063
+    InitializeDDDPara( vps->getCamParPrecision(), codScale[ i ], codOffset[ i ], i );
+#endif
+  }
+}
+#endif
+#endif
+
+#if MTK_DDD_G0063
+Void TComSlice::InitializeDDDPara( UInt uiCamParsCodedPrecision, Int  iCodedScale,Int  iCodedOffset, Int iBaseViewIdx )
+{
+    UInt uiViewId     = getViewIndex();
+
+    if( uiViewId == 0 )
+    {
+        m_aiDDDInvScale[ iBaseViewIdx ] = m_aiDDDInvOffset[ iBaseViewIdx ] = m_aiDDDShift[ iBaseViewIdx ] = 0;
+        return;
+    }
+
+
+    Int iSign = iCodedScale >= 0 ? 1 : -1;
+    iCodedScale = abs( iCodedScale );
+
+    Int iBitWidth = 0;
+
+    const Int iInvPres = 9;
+
+    while( ((( 1 << iBitWidth ) << 1 ) <= iCodedScale ) )
+    {
+        iBitWidth ++;
+    }
+    iBitWidth += iInvPres;
+    Int iTargetValue =  1 << iBitWidth;
+
+    Int iMinError = MAX_INT;
+    Int iBestD = 1 << ( iInvPres - 1 );
+    for( Int d = 1 << ( iInvPres - 1 ); d < ( 1 << iInvPres ); d++ )
+    {
+        Int iError = abs( iCodedScale * d - iTargetValue );
+        if( iError < iMinError )
+        {
+            iMinError = iError;
+            iBestD = d;
+        }
+        if( iMinError == 0 )
+        {
+            break;
+        }
+    }
+    Int iRoundingDir = 0;
+    if( iCodedScale * iBestD > iTargetValue )
+    {
+        iRoundingDir = -1;
+    }
+    else if( iCodedScale * iBestD < iTargetValue )
+    {
+        iRoundingDir = 1;
+    }
+    Int iCamPres = uiCamParsCodedPrecision - 1;
+    m_aiDDDInvScale [ iBaseViewIdx ] = ( iBestD << ( iCamPres + g_bitDepthY )) * iSign;
+    m_aiDDDInvOffset[ iBaseViewIdx ] = -iSign * iBestD * ( iCodedOffset << g_bitDepthY );
+    m_aiDDDShift    [ iBaseViewIdx ] = iBitWidth;
+    m_aiDDDInvOffset[ iBaseViewIdx ] += 1 << ( m_aiDDDShift[ iBaseViewIdx ] - 1 );
+    m_aiDDDInvOffset[ iBaseViewIdx ] += ( 1 << ( m_aiDDDShift[ iBaseViewIdx ] - 4 ) ) * iRoundingDir;
+
+    return;
+}
+#endif
+
 /** get scaling matrix from RefMatrixID
  * \param sizeId size index