draw()

void fl::Animartrix::draw ( DrawContext context )

inlineoverridevirtual

Parameters

now	The current time in milliseconds. Fx writers are encouraged to use this instead of millis() directly as this will more deterministic behavior.

Implements fl::Fx.

Definition at line 223 of file animartrix.hpp.

                                        {
        if (!mXyMap.isLUT()) {
            mXyMap.convertToLookUpTable();
        }
        // Set up context for rendering
        mCtx.leds = ctx.leds;
        mCtx.xyMapFn = &xyMapCallbackAdapter;
        mCtx.xyMapUserData = this;
 
        // Initialize or reinitialize engine on animation change
        const bool anim_changed = (mPrevAnimation != mCurrentAnimation);
        if (anim_changed) {
            init(mCtx, getWidth(), getHeight());
            mPrevAnimation = mCurrentAnimation;
        }
        if (mCtx.mEngine == nullptr) {
            init(mCtx, getWidth(), getHeight());
        }
 
        // Create (or recreate after animation change) the visualizer instance.
        if (anim_changed || !mViz) {
            mViz.reset(createViz(mCurrentAnimation));
        }
 
        setTime(mCtx, ctx.now);
 
        // Dispatch to the selected animation.
        // Custom viz takes precedence; otherwise use the table-created viz.
        if (mCustomViz) {
            mCustomViz->draw(mCtx);
        } else if (mViz) {
            mViz->draw(mCtx);
        }
 
        // Apply color order if not RGB
        if (mColorOrder != RGB) {
            for (int i = 0; i < mXyMap.getTotal(); ++i) {
                CRGB &pixel = ctx.leds[i];
                const u8 b0_index = RGB_BYTE0(mColorOrder);
                const u8 b1_index = RGB_BYTE1(mColorOrder);
                const u8 b2_index = RGB_BYTE2(mColorOrder);
                pixel = CRGB(pixel.raw[b0_index], pixel.raw[b1_index],
                             pixel.raw[b2_index]);
            }
        }
 
        mCtx.leds = fl::span<CRGB>();
    }

References createViz(), fl::Fx2d::getHeight(), fl::Fx2d::getWidth(), fl::init(), fl::DrawContext::leds, mColorOrder, mCtx, mCurrentAnimation, mCustomViz, mPrevAnimation, mViz, fl::Fx2d::mXyMap, fl::DrawContext::now, fl::RGB, RGB_BYTE0, RGB_BYTE1, RGB_BYTE2, fl::setTime(), and fl::xyMapCallbackAdapter().

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