drawXY()

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

Definition at line 67 of file frame.cpp.hpp.

                                                                                  {
    const u16 width = xyMap.getWidth();
    const u16 height = xyMap.getHeight();
    fl::u32 count = 0;
    for (u16 h = 0; h < height; ++h) {
        for (u16 w = 0; w < width; ++w) {
            fl::u32 in_idx = xyMap(w, h);
            fl::u32 out_idx = count++;
            if (in_idx >= mPixelsCount) {
                FL_WARN(
                    "Frame::drawXY: in index out of range: " << in_idx);
                continue;
            }
            if (out_idx >= mPixelsCount) {
                FL_WARN(
                    "Frame::drawXY: out index out of range: " << out_idx);
                continue;
            }
            switch (draw_mode) {
            case DrawMode::DRAW_MODE_BLEND:  // gfx primitives only; treat as overwrite for Frame
            case DrawMode::DRAW_MODE_OVERWRITE: {
                leds[out_idx] = mRgb[in_idx];
                break;
            }
            case DrawMode::DRAW_MODE_BLEND_BY_MAX_BRIGHTNESS: {
                leds[out_idx] =
                    CRGB::blendAlphaMaxChannel(mRgb[in_idx], leds[in_idx]);
                break;
            }
            }
        }
    }
}

References fl::CRGB::blendAlphaMaxChannel(), fl::DRAW_MODE_BLEND, fl::DRAW_MODE_BLEND_BY_MAX_BRIGHTNESS, fl::DRAW_MODE_OVERWRITE, FL_WARN, fl::height, leds, mPixelsCount, mRgb, fl::width, and xyMap.

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