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Support simple transparent pngs for display (#3035)

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Jesse Hills 2022-01-21 11:16:18 +13:00 committed by GitHub
parent 1c51cac5ba
commit 045952939e
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 26 additions and 1 deletions
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8
esphome/components/display/display_buffer.cpp
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@ -233,6 +233,14 @@ void DisplayBuffer::image(int x, int y, Image *image, Color color_on, Color colo
}
}
break;
case IMAGE_TYPE_TRANSPARENT_BINARY:
for (int img_x = 0; img_x < image->get_width(); img_x++) {
for (int img_y = 0; img_y < image->get_height(); img_y++) {
if (image->get_pixel(img_x, img_y))
this->draw_pixel_at(x + img_x, y + img_y, color_on);
}
}
break;
}
}

7
esphome/components/display/display_buffer.h
View file

@ -73,7 +73,12 @@ extern const Color COLOR_OFF;
/// Turn the pixel ON.
extern const Color COLOR_ON;
enum ImageType { IMAGE_TYPE_BINARY = 0, IMAGE_TYPE_GRAYSCALE = 1, IMAGE_TYPE_RGB24 = 2 };
enum ImageType {
IMAGE_TYPE_BINARY = 0,
IMAGE_TYPE_GRAYSCALE = 1,
IMAGE_TYPE_RGB24 = 2,
IMAGE_TYPE_TRANSPARENT_BINARY = 3,
};
enum DisplayRotation {
DISPLAY_ROTATION_0_DEGREES = 0,

12
esphome/components/image/__init__.py
View file

@ -24,6 +24,7 @@ IMAGE_TYPE = {
"BINARY": ImageType.IMAGE_TYPE_BINARY,
"GRAYSCALE": ImageType.IMAGE_TYPE_GRAYSCALE,
"RGB24": ImageType.IMAGE_TYPE_RGB24,
"TRANSPARENT_BINARY": ImageType.IMAGE_TYPE_TRANSPARENT_BINARY,
}
Image_ = display.display_ns.class_("Image")
@ -99,6 +100,17 @@ async def to_code(config):
pos = x + y * width8
data[pos // 8] |= 0x80 >> (pos % 8)
elif config[CONF_TYPE] == "TRANSPARENT_BINARY":
image = image.convert("RGBA")
width8 = ((width + 7) // 8) * 8
data = [0 for _ in range(height * width8 // 8)]
for y in range(height):
for x in range(width):
if not image.getpixel((x, y))[3]:
continue
pos = x + y * width8
data[pos // 8] |= 0x80 >> (pos % 8)
rhs = [HexInt(x) for x in data]
prog_arr = cg.progmem_array(config[CONF_RAW_DATA_ID], rhs)
cg.new_Pvariable(