frame.h

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#pragma once
 
#include <string.h>
 
#include "crgb.h"
#include "fl/namespace.h"
#include "fl/ptr.h"
#include "fl/xymap.h"
 
#include "fl/allocator.h"
#include "fl/draw_mode.h"
 
namespace fl {
 
FASTLED_SMART_PTR(Frame);
 
// Frames are used to hold led data. This includes an optional alpha channel.
// This object is used by the fx and video engines. Most of the memory used for
// Fx and Video will be located in instances of this class. See
// Frame::SetAllocator() for custom memory allocation.
class Frame : public fl::Referent {
  public:
    // Frames take up a lot of memory. On some devices like ESP32 there is
    // PSRAM available. You should see allocator.h ->
    // SetLargeBlockAllocator(...) on setting a custom allocator for these large
    // blocks.
    explicit Frame(int pixels_per_frame);
    ~Frame() override;
    CRGB *rgb() { return mRgb.get(); }
    const CRGB *rgb() const { return mRgb.get(); }
    size_t size() const { return mPixelsCount; }
    void copy(const Frame &other);
    void interpolate(const Frame &frame1, const Frame &frame2,
                     uint8_t amountOfFrame2);
    static void interpolate(const Frame &frame1, const Frame &frame2,
                            uint8_t amountofFrame2, CRGB *pixels);
    void draw(CRGB *leds, DrawMode draw_mode = DRAW_MODE_OVERWRITE) const;
    void drawXY(CRGB *leds, const XYMap &xyMap,
                DrawMode draw_mode = DRAW_MODE_OVERWRITE) const;
    void clear();
 
  private:
    const size_t mPixelsCount;
    fl::scoped_array<CRGB> mRgb;
};
 
inline void Frame::copy(const Frame &other) {
    memcpy(mRgb.get(), other.mRgb.get(), other.mPixelsCount * sizeof(CRGB));
}
 
} // namespace fl