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esphome-dev/esphome/components/display/image.h
T
guillempages 6aa3092be0 Split display_buffer sub-components into own files (#4950)
* Split display_buffer sub-components into own files

Move the Image, Animation and Font classes to their own h/cpp pairs,
instead of having everything into the display_buffer h/cpp files.

* Fixed COLOR_ON duplicate definition
2023-06-19 07:35:03 +12:00

76 lines
1.9 KiB
C++

#pragma once
#include "esphome/core/color.h"
namespace esphome {
namespace display {
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; }
/// Turn the pixel OFF.
extern const Color COLOR_OFF;
/// Turn the pixel ON.
extern const Color COLOR_ON;
class DisplayBuffer;
class BaseImage {
public:
virtual void draw(int x, int y, DisplayBuffer *display, Color color_on, Color color_off) = 0;
virtual int get_width() const = 0;
virtual int get_height() const = 0;
};
class Image : public BaseImage {
public:
Image(const uint8_t *data_start, int width, int height, ImageType type);
Color get_pixel(int x, int y, Color color_on = COLOR_ON, Color color_off = COLOR_OFF) const;
int get_width() const override;
int get_height() const override;
ImageType get_type() const;
void draw(int x, int y, DisplayBuffer *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 display
} // namespace esphome