addFx() [2/2]

int fl::FxEngine::addFx

(

FxPtr

effect

)

Adds a new effect to the engine.

Parameters

effect

Pointer to the effect to be added.

Returns

The index of the added effect, or -1 if the effect couldn't be added.

Definition at line 12 of file fx_engine.cpp.

                                {
    float fps = 0;
    if (mInterpolate && effect->hasFixedFrameRate(&fps)) {
        // Wrap the effect in a VideoFxWrapper so that we can get
        // interpolation.
        VideoFxWrapperPtr vid_fx = fl::make_shared<VideoFxWrapper>(effect);
        vid_fx->setFade(0, 0); // No fade for interpolated effects
        effect = vid_fx;
    }
    bool auto_set = mEffects.empty();
    bool ok = mEffects.insert(mCounter, effect).first;
    if (!ok) {
        return -1;
    }
    if (auto_set) {
        mCurrId = mCounter;
        mCompositor.startTransition(0, 0, effect);
    }
    return mCounter++;
}

References fl::make_shared(), mCompositor, mCounter, mCurrId, mEffects, and mInterpolate.

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