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66 lines
1.8 KiB
C++
66 lines
1.8 KiB
C++
#pragma once
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#include "esphome/core/color.h"
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#include "esphome/components/display/display.h"
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#ifdef USE_LVGL
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#include "esphome/components/lvgl/lvgl_proxy.h"
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#endif // USE_LVGL
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namespace esphome {
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namespace image {
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enum ImageType {
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IMAGE_TYPE_BINARY = 0,
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IMAGE_TYPE_GRAYSCALE = 1,
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IMAGE_TYPE_RGB = 2,
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IMAGE_TYPE_RGB565 = 3,
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};
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enum Transparency {
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TRANSPARENCY_OPAQUE = 0,
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TRANSPARENCY_CHROMA_KEY = 1,
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TRANSPARENCY_ALPHA_CHANNEL = 2,
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};
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class Image : public display::BaseImage {
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public:
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Image(const uint8_t *data_start, int width, int height, ImageType type, Transparency transparency);
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Color get_pixel(int x, int y, Color color_on = display::COLOR_ON, Color color_off = display::COLOR_OFF) const;
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int get_width() const override;
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int get_height() const override;
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const uint8_t *get_data_start() const { return this->data_start_; }
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ImageType get_type() const;
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int get_bpp() const { return this->bpp_; }
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/// Return the stride of the image in bytes, that is, the distance in bytes
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/// between two consecutive rows of pixels.
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size_t get_width_stride() const { return (this->width_ * this->get_bpp() + 7u) / 8u; }
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void draw(int x, int y, display::Display *display, Color color_on, Color color_off) override;
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bool has_transparency() const { return this->transparency_ != TRANSPARENCY_OPAQUE; }
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#ifdef USE_LVGL
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lv_img_dsc_t *get_lv_img_dsc();
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#endif
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protected:
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bool get_binary_pixel_(int x, int y) const;
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Color get_rgb_pixel_(int x, int y) const;
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Color get_rgb565_pixel_(int x, int y) const;
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Color get_grayscale_pixel_(int x, int y) const;
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int width_;
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int height_;
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ImageType type_;
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const uint8_t *data_start_;
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Transparency transparency_;
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size_t bpp_{};
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size_t stride_{};
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#ifdef USE_LVGL
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lv_img_dsc_t dsc_{};
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#endif
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};
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} // namespace image
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} // namespace esphome
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