ossimRefPtr<ossimImageData> ossimShiftFilter::getTile(
const ossimIrect& tileRect,
ossim_uint32 resLevel)
{
ossimRefPtr<ossimImageData> result = 0;
if ( theInputConnection )
{
ossimRefPtr<ossimImageData> inputTile = theInputConnection->getTile( tileRect, resLevel );
if ( inputTile.get() && isSourceEnabled() &&
!ossim::isnan(m_null) && !ossim::isnan(m_min) && !ossim::isnan(m_max) )
{
// Get its status of the input tile.
ossimDataObjectStatus tile_status = inputTile->getDataObjectStatus();
if ( tile_status != OSSIM_NULL )
{
if ( !m_tile )
{
allocate(); // First time through.
}
if ( tile_status != OSSIM_EMPTY )
{
// Set the origin,bands of the output tile.
m_tile->setImageRectangle(tileRect);
switch(inputTile->getScalarType())
{
case OSSIM_UINT8:
{
fillTile( ossim_uint8(0), inputTile.get(), m_tile.get() );
break;
}
case OSSIM_SINT8:
{
fillTile( ossim_sint8(0), inputTile.get(), m_tile.get() );
break;
}
case OSSIM_UINT16:
case OSSIM_USHORT11:
{
fillTile( ossim_uint16(0), inputTile.get(), m_tile.get() );
break;
}
case OSSIM_SINT16:
{
fillTile( ossim_sint16(0), inputTile.get(), m_tile.get() );
break;
}
case OSSIM_SINT32:
{
fillTile( ossim_sint32(0), inputTile.get(), m_tile.get() );
break;
}
case OSSIM_UINT32:
{
fillTile( ossim_uint32(0), inputTile.get(), m_tile.get() );
break;
}
case OSSIM_FLOAT32:
case OSSIM_NORMALIZED_FLOAT:
{
fillTile( ossim_float32(0), inputTile.get(), m_tile.get() );
break;
}
case OSSIM_FLOAT64:
case OSSIM_NORMALIZED_DOUBLE:
{
fillTile( ossim_float64(0), inputTile.get(), m_tile.get() );
break;
}
case OSSIM_SCALAR_UNKNOWN:
default:
{
ossimNotify(ossimNotifyLevel_WARN)
<< "ossimShiftFilter::getTile ERROR Unhandled scalar!" << endl;
break;
}
} // Matches: switch(inputTile->getScalarType())
m_tile->validate();
}
else
{
m_tile->makeBlank();
}
result = m_tile;
} // Matches: if ( tile_status != OSSIM_NULL )
} // Matches: if ( inputTile.get() ... )
if ( !result && inputTile.get() )
{
result = inputTile;
}
} // Matches: if ( theInputConnection )
return result;
}
ossimRefPtr<ossimImageData> ossimWatermarkFilter::getTile(
const ossimIrect& tile_rect, ossim_uint32 resLevel)
{
// Lock for the length of this method.
// Check for input.
if (!theInputConnection)
{
if (theTile.valid())
{
theTile->setImageRectangle(tile_rect);
theTile->makeBlank();
}
return theTile;
}
// Fetch a tile from from the input source.
ossimRefPtr<ossimImageData> inputTile =
theInputConnection->getTile(tile_rect, resLevel);
// Check for bypass.
if (theEnableFlag == false) return inputTile;
// Check for weight being 0.0.
if (theWatermarkWeight == 0.0) return inputTile;
//---
// Check for dirty state.
// Note: This is set in initialize if something changes.
//---
if (theDirtyFlag == true)
{
if (allocate() == false) // Something not right if false.
{
return inputTile;
}
}
// We will only watermark (process) within the input bounding rectangle.
if (tile_rect.intersects(theInputBoundingRect) == false)
{
return inputTile;
}
// Capture the rectangle and blank out theTile.
theTile->setImageRectangle(tile_rect);
if (inputTile.valid() &&
(inputTile->getDataObjectStatus() != OSSIM_NULL))
{
// Copy the inputTile to theTile.
theTile->loadTile(inputTile.get());
}
else
{
theTile->makeBlank();
}
// Write the watermarks...
switch(theTile->getScalarType())
{
case OSSIM_UINT8:
{
fill(ossim_uint8(0));
break;
}
case OSSIM_SINT8:
{
fill(ossim_sint8(0));
break;
}
case OSSIM_USHORT11:
case OSSIM_UINT16:
{
fill(ossim_uint16(0));
break;
}
case OSSIM_SINT16:
{
fill(ossim_sint16(0));
break;
}
case OSSIM_UINT32:
{
fill(ossim_uint32(0));
break;
}
case OSSIM_SINT32:
{
fill(ossim_sint32(0));
break;
}
case OSSIM_FLOAT32:
case OSSIM_NORMALIZED_FLOAT:
{
fill(ossim_float32(0));
break;
}
case OSSIM_FLOAT64:
case OSSIM_NORMALIZED_DOUBLE:
{
fill(ossim_float32(0));
break;
}
case OSSIM_SCALAR_UNKNOWN:
default:
{
ossimNotify(ossimNotifyLevel_WARN)
<< "Scalar type = " << theTile->getScalarType()
<< " Not supported by ossimWatermarkFilter" << std::endl;
return inputTile;
}
}
return theTile;
}
