void ToMayaImageConverter::writeDepth( MImage &image, FloatVectorDataPtr channelData ) const
{
assert( channelData );
ConstImagePrimitivePtr toConvert = runTimeCast<const ImagePrimitive>( srcParameter()->getValidatedValue() );
assert( toConvert );
unsigned width, height;
MStatus s = image.getSize( width, height );
assert( s );
const Imath::Box2i &dataWindow = toConvert->getDataWindow();
const Imath::Box2i &displayWindow = toConvert->getDisplayWindow();
unsigned int dataWidth = dataWindow.size().x + 1;
unsigned int dataHeight = dataWindow.size().y + 1;
Imath::V2i dataOffset = dataWindow.min - displayWindow.min ;
boost::multi_array_ref< const float, 2 > src( &channelData->readable()[0], boost::extents[dataHeight][dataWidth] );
std::vector<float> depth;
depth.resize( height * width, 0 );
boost::multi_array_ref< float, 2 > dst( &depth[0], boost::extents[ height ][ width ] );
for ( unsigned x = 0; x < dataWidth; x++ )
{
for ( unsigned y = 0; y < dataHeight; y++ )
{
/// Vertical flip, to match Maya
dst[ ( height - 1 ) - ( y + dataOffset.y ) ][ x + dataOffset.x ] = src[y][x];
}
}
s = image.setDepthMap( &depth[0], width, height );
assert( s );
assert( image.depth() );
#ifndef NDEBUG
unsigned depthWidth = 0, depthHeight = 0;
s = image.getDepthMapSize( depthWidth, depthHeight );
assert( s );
assert( depthWidth == width );
assert( depthHeight == height );
#endif
}
