Method setupAndProcess

KeyMix/KeyMix.cpp:344–414

set up and run a processor */

/* set up and run a processor */
void
KeyMixPlugin::setupAndProcess(KeyMixProcessorBase &processor,
                              const RenderArguments &args)
{
    const double time = args.time;

    auto_ptr<Image> dst( _dstClip->fetchImage(time) );

    if ( !dst.get() ) {
        throwSuiteStatusException(kOfxStatFailed);
    }
# ifndef NDEBUG
    BitDepthEnum dstBitDepth    = dst->getPixelDepth();
    PixelComponentEnum dstComponents  = dst->getPixelComponents();
    if ( ( dstBitDepth != _dstClip->getPixelDepth() ) ||
         ( dstComponents != _dstClip->getPixelComponents() ) ) {
        setPersistentMessage(Message::eMessageError, "", "OFX Host gave image with wrong depth or components");
        throwSuiteStatusException(kOfxStatFailed);
    }
    checkBadRenderScaleOrField(dst, args);
# endif
    auto_ptr<const Image> srcA( ( _srcClipA && _srcClipA->isConnected() ) ?
                                     _srcClipA->fetchImage(time) : 0 );
    auto_ptr<const Image> srcB( ( _srcClipB && _srcClipB->isConnected() ) ?
                                     _srcClipB->fetchImage(time) : 0 );

# ifndef NDEBUG
    if ( srcA.get() ) {
        checkBadRenderScaleOrField(srcA, args);
        BitDepthEnum srcBitDepth      = srcA->getPixelDepth();
        PixelComponentEnum srcComponents = srcA->getPixelComponents();
        if ( (srcBitDepth != dstBitDepth) || (srcComponents != dstComponents) ) {
            throwSuiteStatusException(kOfxStatErrImageFormat);
        }
    }

    if ( srcB.get() ) {
        checkBadRenderScaleOrField(srcB, args);
        BitDepthEnum srcBitDepth      = srcB->getPixelDepth();
        PixelComponentEnum srcComponents = srcB->getPixelComponents();
        if ( (srcBitDepth != dstBitDepth) || (srcComponents != dstComponents) ) {
            throwSuiteStatusException(kOfxStatErrImageFormat);
        }
    }
# endif

    // auto ptr for the mask.
    bool doMasking = ( ( !_maskApply || _maskApply->getValueAtTime(time) ) && _maskClip && _maskClip->isConnected() );
    auto_ptr<const Image> mask(doMasking ? _maskClip->fetchImage(time) : 0);

    // do we do masking
    if (doMasking) {
        bool maskInvert;
        _maskInvert->getValueAtTime(time, maskInvert);

        // Set it in the processor
        processor.setMaskImg(mask.get(), maskInvert);
    }