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Code Issues Releases Wiki Activity

added RGB565 image type (#3229)

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Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
This commit is contained in:
LuBeDa
2022-04-26 22:41:10 +02:00
committed by GitHub
parent ebf13a0ba0
commit 68dfaf238b
4 changed files with 74 additions and 0 deletions
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32
esphome/components/display/display_buffer.cpp
View File

@@ -242,6 +242,13 @@ void DisplayBuffer::image(int x, int y, Image *image, Color color_on, Color colo
}
}
break;
case IMAGE_TYPE_RGB565:
for (int img_x = 0; img_x < image->get_width(); img_x++) {
for (int img_y = 0; img_y < image->get_height(); img_y++) {
this->draw_pixel_at(x + img_x, y + img_y, image->get_rgb565_pixel(img_x, img_y));
}
}
break;
}
}
@@ -497,6 +504,17 @@ Color Image::get_color_pixel(int x, int y) const {
(progmem_read_byte(this->data_start_ + pos + 0) << 16);
return Color(color32);
}
Color Image::get_rgb565_pixel(int x, int y) const {
if (x < 0 || x >= this->width_ || y < 0 || y >= this->height_)
return Color::BLACK;
const uint32_t pos = (x + y * this->width_) * 2;
uint16_t rgb565 =
progmem_read_byte(this->data_start_ + pos + 0) << 8 | progmem_read_byte(this->data_start_ + pos + 1);
auto r = (rgb565 & 0xF800) >> 11;
auto g = (rgb565 & 0x07E0) >> 5;
auto b = rgb565 & 0x001F;
return Color((r << 3) | (r >> 2), (g << 2) | (g >> 4), (b << 3) | (b >> 2));
}
Color Image::get_grayscale_pixel(int x, int y) const {
if (x < 0 || x >= this->width_ || y < 0 || y >= this->height_)
return Color::BLACK;
@@ -532,6 +550,20 @@ Color Animation::get_color_pixel(int x, int y) const {
(progmem_read_byte(this->data_start_ + pos + 0) << 16);
return Color(color32);
}
Color Animation::get_rgb565_pixel(int x, int y) const {
if (x < 0 || x >= this->width_ || y < 0 || y >= this->height_)
return Color::BLACK;
const uint32_t frame_index = this->width_ * this->height_ * this->current_frame_;
if (frame_index >= (uint32_t)(this->width_ * this->height_ * this->animation_frame_count_))
return Color::BLACK;
const uint32_t pos = (x + y * this->width_ + frame_index) * 2;
uint16_t rgb565 =
progmem_read_byte(this->data_start_ + pos + 0) << 8 | progmem_read_byte(this->data_start_ + pos + 1);
auto r = (rgb565 & 0xF800) >> 11;
auto g = (rgb565 & 0x07E0) >> 5;
auto b = rgb565 & 0x001F;
return Color((r << 3) | (r >> 2), (g << 2) | (g >> 4), (b << 3) | (b >> 2));
}
Color Animation::get_grayscale_pixel(int x, int y) const {
if (x < 0 || x >= this->width_ || y < 0 || y >= this->height_)
return Color::BLACK;

3
esphome/components/display/display_buffer.h
View File

@@ -82,6 +82,7 @@ enum ImageType {
IMAGE_TYPE_GRAYSCALE = 1,
IMAGE_TYPE_RGB24 = 2,
IMAGE_TYPE_TRANSPARENT_BINARY = 3,
IMAGE_TYPE_RGB565 = 4,
};
enum DisplayRotation {
@@ -453,6 +454,7 @@ class Image {
Image(const uint8_t *data_start, int width, int height, ImageType type);
virtual bool get_pixel(int x, int y) const;
virtual Color get_color_pixel(int x, int y) const;
virtual Color get_rgb565_pixel(int x, int y) const;
virtual Color get_grayscale_pixel(int x, int y) const;
int get_width() const;
int get_height() const;
@@ -470,6 +472,7 @@ class Animation : public Image {
Animation(const uint8_t *data_start, int width, int height, uint32_t animation_frame_count, ImageType type);
bool get_pixel(int x, int y) const override;
Color get_color_pixel(int x, int y) const override;
Color get_rgb565_pixel(int x, int y) const override;
Color get_grayscale_pixel(int x, int y) const override;
int get_animation_frame_count() const;