drawXY()

void fl::Frame::drawXY	(	CRGB *	leds,
		const XYMap &	xyMap,
		DrawMode	draw_mode = DRAW_MODE_OVERWRITE ) const

Definition at line 46 of file frame.cpp.

                                                                           {
    const uint16_t width = xyMap.getWidth();
    const uint16_t height = xyMap.getHeight();
    uint32_t count = 0;
    for (uint16_t h = 0; h < height; ++h) {
        for (uint16_t w = 0; w < width; ++w) {
            uint32_t in_idx = xyMap(w, h);
            uint32_t out_idx = count++;
            if (in_idx >= mPixelsCount) {
                FASTLED_WARN("Frame::drawXY: in index out of range: " << in_idx);
                continue;
            }
            if (out_idx >= mPixelsCount) {
                FASTLED_WARN("Frame::drawXY: out index out of range: " << out_idx);
                continue;
            }
            switch (draw_mode) {
            case DRAW_MODE_OVERWRITE: {
                leds[out_idx] = mRgb[in_idx];
                break;
            }
            case DRAW_MODE_BLEND_BY_BLACK: {
                leds[out_idx] = CRGB::blendAlphaMaxChannel(mRgb[in_idx], leds[in_idx]);
                break;
            }
            }
        }
    }
}

References CRGB::blendAlphaMaxChannel(), fl::DRAW_MODE_BLEND_BY_BLACK, fl::DRAW_MODE_OVERWRITE, FASTLED_WARN, leds, mPixelsCount, mRgb, and xyMap.

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