esphome/esphome/components/image/image.h

63 lines
1.6 KiB
C++

#pragma once
#include "esphome/core/color.h"
#include "esphome/components/display/display_buffer.h"
namespace esphome {
namespace image {
enum ImageType {
IMAGE_TYPE_BINARY = 0,
IMAGE_TYPE_GRAYSCALE = 1,
IMAGE_TYPE_RGB24 = 2,
IMAGE_TYPE_RGB565 = 3,
IMAGE_TYPE_RGBA = 4,
};
inline int image_type_to_bpp(ImageType type) {
switch (type) {
case IMAGE_TYPE_BINARY:
return 1;
case IMAGE_TYPE_GRAYSCALE:
return 8;
case IMAGE_TYPE_RGB565:
return 16;
case IMAGE_TYPE_RGB24:
return 24;
case IMAGE_TYPE_RGBA:
return 32;
}
return 0;
}
inline int image_type_to_width_stride(int width, ImageType type) { return (width * image_type_to_bpp(type) + 7u) / 8u; }
class Image : public display::BaseImage {
public:
Image(const uint8_t *data_start, int width, int height, ImageType type);
Color get_pixel(int x, int y, Color color_on = display::COLOR_ON, Color color_off = display::COLOR_OFF) const;
int get_width() const override;
int get_height() const override;
ImageType get_type() const;
void draw(int x, int y, display::Display *display, Color color_on, Color color_off) override;
void set_transparency(bool transparent) { transparent_ = transparent; }
bool has_transparency() const { return transparent_; }
protected:
bool get_binary_pixel_(int x, int y) const;
Color get_rgb24_pixel_(int x, int y) const;
Color get_rgba_pixel_(int x, int y) const;
Color get_rgb565_pixel_(int x, int y) const;
Color get_grayscale_pixel_(int x, int y) const;
int width_;
int height_;
ImageType type_;
const uint8_t *data_start_;
bool transparent_;
};
} // namespace image
} // namespace esphome