Method KeyMixPlugin

KeyMix/KeyMix.cpp:243–271

@brief ctor */

public:
    /** @brief ctor */
    KeyMixPlugin(OfxImageEffectHandle handle)
        : ImageEffect(handle)
        , _dstClip(NULL)
        , _srcClipA(NULL)
        , _srcClipB(NULL)
        , _maskClip(NULL)
    {

        _dstClip = fetchClip(kOfxImageEffectOutputClipName);
        assert( _dstClip && (!_dstClip->isConnected() || _dstClip->getPixelComponents() == ePixelComponentRGB || _dstClip->getPixelComponents() == ePixelComponentRGBA || _dstClip->getPixelComponents() == ePixelComponentAlpha) );
        _srcClipA = fetchClip(kClipA);
        assert( _srcClipA && (!_srcClipA->isConnected() || _srcClipA->getPixelComponents() == ePixelComponentRGB || _srcClipA->getPixelComponents() == ePixelComponentRGBA || _srcClipA->getPixelComponents() == ePixelComponentAlpha) );


        _srcClipB = fetchClip(kClipB);
        assert( _srcClipB && (!_srcClipB->isConnected() || _srcClipB->getPixelComponents() == ePixelComponentRGB || _srcClipB->getPixelComponents() == ePixelComponentRGBA || _srcClipB->getPixelComponents() == ePixelComponentAlpha) );
        _maskClip = fetchClip(getContext() == eContextPaint ? "Brush" : "Mask");
        assert(!_maskClip || !_maskClip->isConnected() || _maskClip->getPixelComponents() == ePixelComponentAlpha);
        _mix = fetchDoubleParam(kParamMix);
        _maskApply = ( ofxsMaskIsAlwaysConnected( OFX::getImageEffectHostDescription() ) && paramExists(kParamMaskApply) ) ? fetchBooleanParam(kParamMaskApply) : 0;
        _maskInvert = fetchBooleanParam(kParamMaskInvert);
        assert(_mix && _maskInvert);

        _aChannels[0] = fetchBooleanParam(kParamProcessR);
        _aChannels[1] = fetchBooleanParam(kParamProcessG);
        _aChannels[2] = fetchBooleanParam(kParamProcessB);
        _aChannels[3] = fetchBooleanParam(kParamProcessA);
        assert(_aChannels[0] && _aChannels[1] && _aChannels[2] && _aChannels[3]);
    }

private:
    // override the rod call