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Ili9341 8bit indexed mode pt2 (#2502)
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parent
b76c7a0131
commit
ecbbf2d3f4
2 changed files with 67 additions and 6 deletions
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@ -1,6 +1,6 @@
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import esphome.codegen as cg
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import esphome.config_validation as cv
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from esphome import pins
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from esphome import core, pins
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from esphome.components import display, spi
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from esphome.const import (
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CONF_COLOR_PALETTE,
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@ -12,10 +12,11 @@ from esphome.const import (
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CONF_RAW_DATA_ID,
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CONF_RESET_PIN,
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)
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from esphome.core import HexInt
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from esphome.core import CORE, HexInt
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DEPENDENCIES = ["spi"]
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CONF_COLOR_PALETTE_IMAGES = "color_palette_images"
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CONF_LED_PIN = "led_pin"
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ili9341_ns = cg.esphome_ns.namespace("ili9341")
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@ -37,7 +38,25 @@ MODELS = {
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ILI9341_MODEL = cv.enum(MODELS, upper=True, space="_")
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COLOR_PALETTE = cv.one_of("NONE", "GRAYSCALE")
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COLOR_PALETTE = cv.one_of("NONE", "GRAYSCALE", "IMAGE_ADAPTIVE")
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def _validate(config):
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if config.get(CONF_COLOR_PALETTE) == "IMAGE_ADAPTIVE" and not config.get(
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CONF_COLOR_PALETTE_IMAGES
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):
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raise cv.Invalid(
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"Color palette in IMAGE_ADAPTIVE mode requires at least one 'color_palette_images' entry to generate palette"
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)
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if (
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config.get(CONF_COLOR_PALETTE_IMAGES)
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and config.get(CONF_COLOR_PALETTE) != "IMAGE_ADAPTIVE"
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):
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raise cv.Invalid(
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"Providing color palette images requires palette mode to be 'IMAGE_ADAPTIVE'"
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)
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return config
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CONFIG_SCHEMA = cv.All(
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display.FULL_DISPLAY_SCHEMA.extend(
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@ -48,12 +67,16 @@ CONFIG_SCHEMA = cv.All(
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cv.Optional(CONF_RESET_PIN): pins.gpio_output_pin_schema,
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cv.Optional(CONF_LED_PIN): pins.gpio_output_pin_schema,
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cv.Optional(CONF_COLOR_PALETTE, default="NONE"): COLOR_PALETTE,
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cv.Optional(CONF_COLOR_PALETTE_IMAGES, default=[]): cv.ensure_list(
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cv.file_
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),
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cv.GenerateID(CONF_RAW_DATA_ID): cv.declare_id(cg.uint8),
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}
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)
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.extend(cv.polling_component_schema("1s"))
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.extend(spi.spi_device_schema(False)),
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cv.has_at_most_one_key(CONF_PAGES, CONF_LAMBDA),
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_validate,
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)
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@ -86,12 +109,45 @@ async def to_code(config):
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led_pin = await cg.gpio_pin_expression(config[CONF_LED_PIN])
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cg.add(var.set_led_pin(led_pin))
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rhs = None
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if config[CONF_COLOR_PALETTE] == "GRAYSCALE":
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cg.add(var.set_buffer_color_mode(ILI9341ColorMode.BITS_8_INDEXED))
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rhs = []
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for x in range(256):
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rhs.extend([HexInt(x), HexInt(x), HexInt(x)])
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elif config[CONF_COLOR_PALETTE] == "IMAGE_ADAPTIVE":
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cg.add(var.set_buffer_color_mode(ILI9341ColorMode.BITS_8_INDEXED))
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from PIL import Image
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def load_image(filename):
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path = CORE.relative_config_path(filename)
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try:
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return 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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# make a wide horizontal combined image.
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images = [load_image(x) for x in config[CONF_COLOR_PALETTE_IMAGES]]
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total_width = sum(i.width for i in images)
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max_height = max(i.height for i in images)
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ref_image = Image.new("RGB", (total_width, max_height))
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x = 0
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for i in images:
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ref_image.paste(i, (x, 0))
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x = x + i.width
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# reduce the colors on combined image to 256.
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converted = ref_image.convert("P", palette=Image.ADAPTIVE, colors=256)
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# if you want to verify how the images look use
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# ref_image.save("ref_in.png")
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# converted.save("ref_out.png")
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palette = converted.getpalette()
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assert len(palette) == 256 * 3
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rhs = palette
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else:
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cg.add(var.set_buffer_color_mode(ILI9341ColorMode.BITS_8))
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if rhs is not None:
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prog_arr = cg.progmem_array(config[CONF_RAW_DATA_ID], rhs)
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cg.add(var.set_palette(prog_arr))
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else:
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pass
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@ -122,7 +122,12 @@ void ILI9341Display::display_() {
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}
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void ILI9341Display::fill(Color color) {
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uint8_t color332 = display::ColorUtil::color_to_332(color, display::ColorOrder::COLOR_ORDER_RGB);
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uint8_t color332 = 0;
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if (this->buffer_color_mode_ == BITS_8) {
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color332 = display::ColorUtil::color_to_332(color);
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} else { // if (this->buffer_color_mode_ == BITS_8_INDEXED)
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color332 = display::ColorUtil::color_to_index8_palette888(color, this->palette_);
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}
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memset(this->buffer_, color332, this->get_buffer_length_());
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this->x_low_ = 0;
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this->y_low_ = 0;
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