epaper_spi_4bpp.h

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#pragma once
 
#include "epaper_spi.h"
 
namespace esphome::epaper_spi {
 
class EPaper4bpp : public EPaperBase {
 public:
  EPaper4bpp(const char *name, uint16_t width, uint16_t height, const uint8_t *init_sequence,
             size_t init_sequence_length)
      : EPaperBase(name, width, height, init_sequence, init_sequence_length, DISPLAY_TYPE_COLOR) {
    this->buffer_length_ = width * height / 2;  // 2 pixels per byte
  }
 
  void fill(Color color) override;
  void clear() override;
 
 protected:
  void draw_pixel_at(int x, int y, Color color) override;
  bool transfer_data() override;
 
  virtual uint8_t color_to_native(Color color) = 0;
 
  static constexpr uint8_t CMD_TRANSFER_DATA = 0x10;
};
 
}  // namespace esphome::epaper_spi