bool ossimKakaduJ2kReader::loadTile(ossim_uint32 x, ossim_uint32 y)
{
bool result = true;
ossimIpt ul(x, y);
ossimIpt lr(ul.x + theTileSizeX - 1,
ul.y + theTileSizeY - 1);
// Set the cache rectangle to be an even j2k tile.
theCacheTile->setImageRectangle(ossimIrect(ul, lr));
//---
// Let the getOverviewTile do the rest of the work.
if ( getOverviewTile(0, theCacheTile.get()) )
{
// Add it to the cache for the next time.
ossimAppFixedTileCache::instance()->addTile(theCacheId, theCacheTile);
}
else
{
ossimNotify(ossimNotifyLevel_WARN)
<< __FILE__ << __LINE__
<< " ossimKakaduJ2kReader::loadBlock failed!"
<< std::endl;
result = false;
}
return result;
}
bool ossimHdfReader::getTile(ossimImageData* result,
ossim_uint32 resLevel)
{
bool status = false;
//---
// Not open, this tile source bypassed, or invalid res level,
// return a blank tile.
//---
if( isOpen() && isSourceEnabled() && isValidRLevel(resLevel) &&
result && (result->getNumberOfBands() == getNumberOfOutputBands()) )
{
result->ref(); // Increment ref count.
//---
// Check for overview tile. Some overviews can contain r0 so always
// call even if resLevel is 0. Method returns true on success, false
// on error.
//---
status = getOverviewTile(resLevel, result);
if (!status) // Did not get an overview tile.
{
status = true;
ossimIrect tile_rect = result->getImageRectangle();
if (getImageRectangle().intersects(tile_rect))
{
// Make a clip rect.
ossimIrect clipRect = tile_rect.clipToRect(getImageRectangle());
if (tile_rect.completely_within(clipRect) == false)
{
// Not filling whole tile so blank it out first.
result->makeBlank();
}
if (m_gdalTileSource.valid())
{
ossimRefPtr<ossimImageData> imageData =
m_gdalTileSource->getTile(tile_rect, resLevel);
result->loadTile(imageData->getBuf(), tile_rect, clipRect, OSSIM_BSQ);
}
}
else // No intersection...
{
result->makeBlank();
}
}
result->validate();
result->unref(); // Decrement ref count.
}
return status;
}
bool ossimAdrgTileSource::getTile(ossimImageData* result,
ossim_uint32 resLevel)
{
bool status = false;
//---
// Not open, this tile source bypassed, or invalid res level,
// return a blank tile.
//---
if( isOpen() && isSourceEnabled() && isValidRLevel(resLevel) &&
result && (result->getNumberOfBands() == getNumberOfOutputBands()) )
{
result->ref(); // Increment ref count.
//---
// Check for overview tile. Some overviews can contain r0 so always
// call even if resLevel is 0. Method returns true on success, false
// on error.
//---
status = getOverviewTile(resLevel, result);
if (!status) // Did not get an overview tile.
{
status = true;
ossimIrect tile_rect = result->getImageRectangle();
ossimIrect image_rect = getImageRectangle(resLevel);
result->makeBlank();
//---
// See if any point of the requested tile is in the image.
//---
if ( tile_rect.intersects(image_rect) )
{
ossimIrect clip_rect = tile_rect.clipToRect(image_rect);
// Load the tile buffer with data from the adrg.
status = fillBuffer(tile_rect, clip_rect, result);
if (status)
{
result->validate();
}
}
}
result->unref(); // Decrement ref count.
}
return status;
}
bool rspfHdfReader::getTile(rspfImageData* result,
rspf_uint32 resLevel)
{
bool status = false;
if( isOpen() && isSourceEnabled() && isValidRLevel(resLevel) &&
result && (result->getNumberOfBands() == getNumberOfOutputBands()) )
{
result->ref(); // Increment ref count.
status = getOverviewTile(resLevel, result);
if (!status) // Did not get an overview tile.
{
status = true;
rspfIrect tile_rect = result->getImageRectangle();
if (getImageRectangle().intersects(tile_rect))
{
rspfIrect clipRect = tile_rect.clipToRect(getImageRectangle());
if (tile_rect.completely_within(clipRect) == false)
{
result->makeBlank();
}
if (m_gdalTileSource.valid())
{
rspfRefPtr<rspfImageData> imageData =
m_gdalTileSource->getTile(tile_rect, resLevel);
result->loadTile(imageData->getBuf(), tile_rect, clipRect, RSPF_BSQ);
}
}
else // No intersection...
{
result->makeBlank();
}
}
result->validate();
result->unref(); // Decrement ref count.
}
return status;
}
bool ossimNetCdfReader::getTile(ossimImageData* result,
ossim_uint32 resLevel)
{
bool status = false;
status = getOverviewTile(resLevel, result);
ossimIrect rect = result->getImageRectangle();
if (!status) // Did not get an overview tile.
{
if(!theTile.valid()||!theMemoryTile.valid())
{
cacheImage();
}
if (theTile.valid())
{
// Image rectangle must be set prior to calling getTile.
theTile->setImageRectangle(rect);
theTile->makeBlank();
ossimIrect memRect = theMemoryTile->getImageRectangle();
if(memRect.intersects(rect))
{
ossimIrect clampRect = theMemoryTile->getImageRectangle().clipToRect(rect);
theTile->loadTile(theMemoryTile->getBuf(),
memRect,
OSSIM_BSQ);
theTile->validate();
status = true;
}
}
}
return status;
}
ossimRefPtr<ossimImageData> ossimKakaduJ2kReader::getTile(
const ossimIrect& rect, ossim_uint32 resLevel)
{
// This tile source bypassed, or invalid res level, return a blank tile.
if(!isSourceEnabled() || !isOpen() || !isValidRLevel(resLevel))
{
return ossimRefPtr<ossimImageData>();
}
if (theTile.valid())
{
// Rectangle must be set prior to getOverviewTile call.
theTile->setImageRectangle(rect);
if (resLevel)
{
if ( getOverviewTile(resLevel, theTile.get() ) == false )
{
theTile->makeBlank();
}
}
else
{
//---
// See if the whole tile is going to be filled, if not, start out with
// a blank tile so data from a previous load gets wiped out.
//---
if ( !rect.completely_within(theImageRect) )
{
// Start with a blank tile.
theTile->makeBlank();
}
//---
// See if any point of the requested tile is in the image.
//---
if ( rect.intersects(theImageRect) )
{
ossimIrect clipRect = rect.clipToRect(theImageRect);
ossimIrect exandedRect = clipRect;
//---
// Shift the upper left corner of the "clip_rect" to the an even
// j2k tile boundry.
//---
exandedRect.stretchToTileBoundary(ossimIpt(theTileSizeX,
theTileSizeY));
// Vertical tile loop.
ossim_int32 y = exandedRect.ul().y;
while (y < exandedRect.lr().y)
{
// Horizontal tile loop.
ossim_int32 x = exandedRect.ul().x;
while (x < exandedRect.lr().x)
{
if ( loadTileFromCache(x, y, clipRect) == false )
{
if ( loadTile(x, y) )
{
//---
// Note: Clip the cache tile to the image clipRect
// since there are j2k tiles that go beyond the image
// dimensions, i.e., edge tiles.
//---
ossimIrect cr =
theCacheTile->getImageRectangle().
clipToRect(clipRect);
theTile->loadTile(theCacheTile->getBuf(),
theCacheTile->getImageRectangle(),
cr,
OSSIM_BSQ);
}
}
x += theTileSizeX; // Go to next tile.
}
y += theTileSizeY; // Go to next row of tiles.
}
// Set the tile status.
theTile->validate();
} // matches: if ( rect.intersects(theImageRect) )
} // r0 block
} // matches: if (theTile.valid())
return theTile;
}
bool ossimH5Reader::getTile(ossimImageData* result, ossim_uint32 resLevel)
{
bool status = false;
m_mutex.lock();
//---
// Not open, this tile source bypassed, or invalid res level,
// return a blank tile.
//---
if( isOpen() && isSourceEnabled() && isValidRLevel(resLevel) &&
result && (result->getNumberOfBands() == getNumberOfOutputBands()) )
{
result->ref(); // Increment ref count.
//---
// Check for overview tile. Some overviews can contain r0 so always
// call even if resLevel is 0. Method returns true on success, false
// on error.
//---
status = getOverviewTile(resLevel, result);
if (!status) // Did not get an overview tile.
{
status = true;
ossimIrect tile_rect = result->getImageRectangle();
if ( ! tile_rect.completely_within(getImageRectangle(0)) )
{
// We won't fill totally so make blank first.
result->makeBlank();
}
if (getImageRectangle(0).intersects(tile_rect))
{
// Make a clip rect.
ossimIrect clipRect = tile_rect.clipToRect(getImageRectangle(0));
if (tile_rect.completely_within( clipRect) == false)
{
// Not filling whole tile so blank it out first.
result->makeBlank();
}
// Create buffer to hold the clip rect for a single band.
ossim_uint32 clipRectSizeInBytes = clipRect.area() *
ossim::scalarSizeInBytes( m_entries[m_currentEntry].getScalarType() );
vector<char> dataBuffer(clipRectSizeInBytes);
// Get the data.
for (ossim_uint32 band = 0; band < getNumberOfInputBands(); ++band)
{
// Hdf5 file to buffer:
m_entries[m_currentEntry].getTileBuf(&dataBuffer.front(), clipRect, band);
if ( m_entries[m_currentEntry].getScalarType() == OSSIM_FLOAT32 )
{
//---
// NPP VIIRS data has null of "-999.3".
// Scan and fix non-standard null value.
//---
const ossim_float32 NP = getNullPixelValue(band);
const ossim_uint32 COUNT = clipRect.area();
ossim_float32* float_buffer = (ossim_float32*)&dataBuffer.front();
for ( ossim_uint32 i = 0; i < COUNT; ++i )
{
if ( float_buffer[i] <= -999.0 ) float_buffer[i] = NP;
}
}
// Buffer to tile:
result->loadBand((void*)&dataBuffer.front(), clipRect, band);
}
// Validate the tile, i.e. full, partial, empty.
result->validate();
}
else // No intersection...
{
result->makeBlank();
}
}
result->unref(); // Decrement ref count.
}
m_mutex.unlock();
return status;
}
bool ossimPngReader::getTile(ossimImageData* result,
ossim_uint32 resLevel)
{
bool status = false;
//---
// Not open, this tile source bypassed, or invalid res level,
// return a blank tile.
//---
if( isOpen() && isSourceEnabled() && isValidRLevel(resLevel) &&
result && (result->getNumberOfBands() == getNumberOfOutputBands()) )
{
result->ref(); // Increment ref count.
//---
// Check for overview tile. Some overviews can contain r0 so always
// call even if resLevel is 0. Method returns true on success, false
// on error.
//---
status = getOverviewTile(resLevel, result);
if (status)
{
if(m_outputScalarType == OSSIM_UINT16)
{
//---
// Temp fix:
// The overview handler could return a tile of OSSIM_USHORT11 if
// the max sample value was not set to 2047.
//
// To prevent a scalar mismatch set
//---
result->setScalarType(m_outputScalarType);
}
}
if (!status) // Did not get an overview tile.
{
status = true;
ossimIrect tile_rect = result->getImageRectangle();
if ( ! tile_rect.completely_within(getImageRectangle(0)) )
{
// We won't fill totally so make blank first.
m_tile->makeBlank();
}
if (getImageRectangle(0).intersects(tile_rect))
{
// Make a clip rect.
ossimIrect clip_rect = tile_rect.clipToRect(getImageRectangle(0));
// This will validate the tile at the end.
fillTile(clip_rect, result);
}
}
result->unref(); // Decrement ref count.
}
return status;
}
bool ossimGeneralRasterTileSource::getTile(ossimImageData* result,
ossim_uint32 resLevel)
{
bool status = false;
//---
// Not open, this tile source bypassed, or invalid res level,
// return a blank tile.
//---
if( isOpen() && isSourceEnabled() && isValidRLevel(resLevel) &&
result && (result->getNumberOfBands() == getNumberOfOutputBands()) )
{
//---
// Check for overview tile. Some overviews can contain r0 so always
// call even if resLevel is 0. Method returns true on success, false
// on error.
//---
status = getOverviewTile(resLevel, result);
if (status)
{
if(getOutputScalarType() == OSSIM_USHORT11)
{
//---
// Temp fix:
// The overview handler could return a tile of OSSIM_UINT16 if
// the max sample value was not set to 2047.
//---
result->setScalarType(OSSIM_USHORT11);
}
}
if (!status) // Did not get an overview tile.
{
status = true;
//---
// Subtract any sub image offset to get the zero based image space
// rectangle.
//---
ossimIrect tile_rect = result->getImageRectangle();
// This should be the zero base image rectangle for this res level.
ossimIrect image_rect = getImageRectangle(resLevel);
//---
// See if any point of the requested tile is in the image.
//---
if ( tile_rect.intersects(image_rect) )
{
// Make the tile rectangle zero base.
result->setImageRectangle(tile_rect);
// Initialize the tile if needed as we're going to stuff it.
if (result->getDataObjectStatus() == OSSIM_NULL)
{
result->initialize();
}
ossimIrect clip_rect = tile_rect.clipToRect(image_rect);
if ( ! tile_rect.completely_within(m_bufferRect) )
{
// A new buffer must be loaded.
if ( !tile_rect.completely_within(clip_rect) )
{
//---
// Start with a blank tile since the whole tile buffer will
// not be
// filled.
//---
result->makeBlank();
}
// Reallocate the buffer if needed.
if ( m_bufferSizeInPixels != result->getSize() )
{
allocateBuffer( result );
}
ossimIpt size(static_cast<ossim_int32>(result->getWidth()),
static_cast<ossim_int32>(result->getHeight()));
if( !fillBuffer(clip_rect.ul(), size) )
{
ossimNotify(ossimNotifyLevel_WARN)
<< "Error from fill buffer..."
<< std::endl;
//---
// Error in filling buffer.
//---
setErrorStatus();
status = false;
}
}
result->loadTile(m_buffer,
m_bufferRect,
clip_rect,
m_bufferInterleave);
result->validate();
// Set the rectangle back.
result->setImageRectangle(tile_rect);
}
else // No intersection.
{
result->makeBlank();
}
}
}
return status;
}
