epaper_spi_ssd1677.h

Go to the documentation of this file.

#pragma once
 
#include "epaper_spi_mono.h"
 
namespace esphome::epaper_spi {
 
class EPaperSSD1677 : public EPaperMono {
 public:
  EPaperSSD1677(const char *name, uint16_t width, uint16_t height, const uint8_t *init_sequence,
                size_t init_sequence_length, DisplayType display_type = DISPLAY_TYPE_BINARY)
      : EPaperMono(name, width, height, init_sequence, init_sequence_length, display_type) {}
 
  void setup() override;
 
 protected:
  // Allocates the comparison frame when partial updates are enabled. Separate from setup() so it
  // can run without a bus.
  void init_comparison_frame_();
  // Bytes in one row of a RAM plane: 8 pixels per byte, whatever the buffer holds.
  size_t plane_row_length_() const { return (this->width_ + 7) / 8; }
  // Whether the buffer already holds the frame as a RAM plane does, so it can be sent as it is.
  // A subclass with a deeper buffer returns false and overrides plane_row().
  virtual bool buffer_is_plane() const { return true; }
  // Row y of the frame as a RAM plane holds it, 1 bit per pixel with 1 = white.
  virtual void plane_row(size_t y, uint8_t *out);
  bool reset() override;
  bool transfer_data() override;
 
  split_buffer::SplitBuffer sent_{};  // the frame last sent to 0x24, i.e. what the panel shows
  uint8_t plane_{0};                  // 0 while sending 0x26, 1 while sending 0x24
};
 
}  // namespace esphome::epaper_spi