write()

void fl::XYRasterSparse_RGB8::write ( const vec2< u16 > & pt, const CRGB & color )

inline

Definition at line 344 of file raster_sparse.h.

                                                       {
        CRGB **cached = mCache.find_value(pt);
        if (cached) {
            CRGB *val = *cached;
            // For CRGB, we'll replace the existing color (blend could be added later)
            *val = color;
            return;
        }
        if (mCache.size() <= kMaxCacheSize) {
            // cache it.
            CRGB *v = mSparseGrid.find_value(pt);
            if (v == nullptr) {
                if (mSparseGrid.needs_rehash()) {
                    // mSparseGrid is about to rehash, so we need to clear the
                    // small cache because it shares pointers.
                    mCache.clear();
                }
                mSparseGrid.insert(pt, color);
                return;
            }
            mCache.insert(pt, v);
            *v = color;
            return;
        } else {
            // overflow, clear cache and write directly.
            mCache.clear();
            mSparseGrid.insert(pt, color);
            return;
        }
    }

References kMaxCacheSize, mCache, and mSparseGrid.

Referenced by rasterize().

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