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93 lines
2.8 KiB
Python
93 lines
2.8 KiB
Python
import logging
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from esphome import core
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from esphome.components import display, font
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import esphome.config_validation as cv
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import esphome.codegen as cg
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from esphome.const import CONF_FILE, CONF_ID, CONF_TYPE, CONF_RESIZE
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from esphome.core import CORE, HexInt
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_LOGGER = logging.getLogger(__name__)
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DEPENDENCIES = ['display']
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MULTI_CONF = True
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ImageType = display.display_ns.enum('ImageType')
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IMAGE_TYPE = {
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'BINARY': ImageType.IMAGE_TYPE_BINARY,
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'GRAYSCALE': ImageType.IMAGE_TYPE_GRAYSCALE,
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'RGB24': ImageType.IMAGE_TYPE_RGB24,
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}
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Image_ = display.display_ns.class_('Image')
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CONF_RAW_DATA_ID = 'raw_data_id'
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IMAGE_SCHEMA = cv.Schema({
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cv.Required(CONF_ID): cv.declare_id(Image_),
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cv.Required(CONF_FILE): cv.file_,
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cv.Optional(CONF_RESIZE): cv.dimensions,
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cv.Optional(CONF_TYPE, default='BINARY'): cv.enum(IMAGE_TYPE, upper=True),
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cv.GenerateID(CONF_RAW_DATA_ID): cv.declare_id(cg.uint8),
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})
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CONFIG_SCHEMA = cv.All(font.validate_pillow_installed, IMAGE_SCHEMA)
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def to_code(config):
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from PIL import Image
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path = CORE.relative_config_path(config[CONF_FILE])
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try:
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image = Image.open(path)
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except Exception as e:
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raise core.EsphomeError(f"Could not load image file {path}: {e}")
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width, height = image.size
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if CONF_RESIZE in config:
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image.thumbnail(config[CONF_RESIZE])
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width, height = image.size
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else:
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if width > 500 or height > 500:
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_LOGGER.warning("The image you requested is very big. Please consider using"
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" the resize parameter.")
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if config[CONF_TYPE] == 'GRAYSCALE':
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image = image.convert('L', dither=Image.NONE)
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pixels = list(image.getdata())
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data = [0 for _ in range(height * width)]
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pos = 0
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for pix in pixels:
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data[pos] = pix
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pos += 1
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elif config[CONF_TYPE] == 'RGB24':
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image = image.convert('RGB')
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pixels = list(image.getdata())
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data = [0 for _ in range(height * width * 3)]
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pos = 0
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for pix in pixels:
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data[pos] = pix[0]
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pos += 1
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data[pos] = pix[1]
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pos += 1
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data[pos] = pix[2]
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pos += 1
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elif config[CONF_TYPE] == 'BINARY':
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image = image.convert('1', dither=Image.NONE)
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width8 = ((width + 7) // 8) * 8
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data = [0 for _ in range(height * width8 // 8)]
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for y in range(height):
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for x in range(width):
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if image.getpixel((x, y)):
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continue
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pos = x + y * width8
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data[pos // 8] |= 0x80 >> (pos % 8)
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rhs = [HexInt(x) for x in data]
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prog_arr = cg.progmem_array(config[CONF_RAW_DATA_ID], rhs)
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cg.new_Pvariable(config[CONF_ID], prog_arr, width, height,
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IMAGE_TYPE[config[CONF_TYPE]])
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