// tells the host what region we are capable of filling
OfxStatus getSpatialRoD(OfxImageEffectHandle effect, OfxPropertySetHandle inArgs, OfxPropertySetHandle outArgs)
{
OfxStatus status = kOfxStatOK;
// retrieve any instance data associated with this effect
Instance *instance = getInstanceData(effect);
// Read the mas now
bool black;
const std::string finalName = computeFinalName (inArgs, instance, black);
try
{
DeepScanLineInputFile file (finalName.c_str ());
const Header& header = file.header();
const Box2i displayWindow = header.displayWindow();
const Box2i dataWindow = header.dataWindow();
const int w = dataWindow.max.x+1-dataWindow.min.x;
const int h = dataWindow.max.y+1-dataWindow.min.y;
const int imageH = displayWindow.max.y+1;
const int xMin = dataWindow.min.x;
const int yMin = imageH-dataWindow.max.y-1;
const double res[] = {(double)xMin, (double)yMin, (double)(xMin+w), (double)(yMin+h)};
gPropHost->propSetDoubleN(outArgs, kOfxImageEffectPropRegionOfDefinition, 4, res);
}
catch (const std::exception &e)
{
std::cerr << e.what () << std::endl;
status = kOfxStatFailed;
}
return status;
}
void
DeepScanLineOutputFile::copyPixels (DeepScanLineInputFile &in)
{
Lock lock (*_data->_streamData);
//
// Check if this file's and and the InputFile's
// headers are compatible.
//
const Header &hdr = _data->header;
const Header &inHdr = in.header();
if(!inHdr.hasType() || inHdr.type()!=DEEPSCANLINE)
{
THROW (IEX_NAMESPACE::ArgExc, "Cannot copy pixels from image "
"file \"" << in.fileName() << "\" to image "
"file \"" << fileName() << "\": the input needs to be a deep scanline image");
}
if (!(hdr.dataWindow() == inHdr.dataWindow()))
THROW (IEX_NAMESPACE::ArgExc, "Cannot copy pixels from image "
"file \"" << in.fileName() << "\" to image "
"file \"" << fileName() << "\". "
"The files have different data windows.");
if (!(hdr.lineOrder() == inHdr.lineOrder()))
THROW (IEX_NAMESPACE::ArgExc, "Quick pixel copy from image "
"file \"" << in.fileName() << "\" to image "
"file \"" << fileName() << "\" failed. "
"The files have different line orders.");
if (!(hdr.compression() == inHdr.compression()))
THROW (IEX_NAMESPACE::ArgExc, "Quick pixel copy from image "
"file \"" << in.fileName() << "\" to image "
"file \"" << fileName() << "\" failed. "
"The files use different compression methods.");
if (!(hdr.channels() == inHdr.channels()))
THROW (IEX_NAMESPACE::ArgExc, "Quick pixel copy from image "
"file \"" << in.fileName() << "\" to image "
"file \"" << fileName() << "\" failed. "
"The files have different channel lists.");
//
// Verify that no pixel data have been written to this file yet.
//
const Box2i &dataWindow = hdr.dataWindow();
if (_data->missingScanLines != dataWindow.max.y - dataWindow.min.y + 1)
THROW (IEX_NAMESPACE::LogicExc, "Quick pixel copy from image "
"file \"" << in.fileName() << "\" to image "
"file \"" << fileName() << "\" failed. "
"\"" << fileName() << "\" already contains "
"pixel data.");
//
// Copy the pixel data.
//
vector<char> data(4096);
while (_data->missingScanLines > 0)
{
Int64 dataSize = (Int64) data.size();
in.rawPixelData(_data->currentScanLine, &data[0], dataSize);
if(dataSize > data.size())
{
// block wasn't big enough - go again with enough memory this time
data.resize(dataSize);
in.rawPixelData(_data->currentScanLine, &data[0], dataSize);
}
// extract header from block to pass to writePixelData
Int64 packedSampleCountSize = *(Int64 *) (&data[4]);
Int64 packedDataSize = *(Int64 *) (&data[12]);
Int64 unpackedDataSize = *(Int64 *) (&data[20]);
const char * sampleCountTable = &data[0]+28;
const char * pixelData = sampleCountTable + packedSampleCountSize;
writePixelData (_data->_streamData, _data, lineBufferMinY (_data->currentScanLine,
_data->minY,
_data->linesInBuffer),
pixelData, packedDataSize, unpackedDataSize,sampleCountTable,packedSampleCountSize);
_data->currentScanLine += (_data->lineOrder == INCREASING_Y)?
_data->linesInBuffer: -_data->linesInBuffer;
_data->missingScanLines -= _data->linesInBuffer;
}
}
