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esphome/esphome/components/animation/__init__.py

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Python
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import logging
from esphome import automation, core
from esphome.components import font
import esphome.components.image as espImage
from esphome.components.image import CONF_USE_TRANSPARENCY
import esphome.config_validation as cv
import esphome.codegen as cg
from esphome.const import (
CONF_FILE,
CONF_ID,
CONF_RAW_DATA_ID,
CONF_REPEAT,
CONF_RESIZE,
CONF_TYPE,
)
from esphome.core import CORE, HexInt
_LOGGER = logging.getLogger(__name__)
AUTO_LOAD = ["image"]
CODEOWNERS = ["@syndlex"]
DEPENDENCIES = ["display"]
MULTI_CONF = True
CONF_LOOP = "loop"
CONF_START_FRAME = "start_frame"
CONF_END_FRAME = "end_frame"
CONF_FRAME = "frame"
animation_ns = cg.esphome_ns.namespace("animation")
Animation_ = animation_ns.class_("Animation", espImage.Image_)
# Actions
NextFrameAction = animation_ns.class_(
"AnimationNextFrameAction", automation.Action, cg.Parented.template(Animation_)
)
PrevFrameAction = animation_ns.class_(
"AnimationPrevFrameAction", automation.Action, cg.Parented.template(Animation_)
)
SetFrameAction = animation_ns.class_(
"AnimationSetFrameAction", automation.Action, cg.Parented.template(Animation_)
)
def validate_cross_dependencies(config):
"""
Validate fields whose possible values depend on other fields.
For example, validate that explicitly transparent image types
have "use_transparency" set to True.
Also set the default value for those kind of dependent fields.
"""
image_type = config[CONF_TYPE]
is_transparent_type = image_type in ["TRANSPARENT_BINARY", "RGBA"]
# If the use_transparency option was not specified, set the default depending on the image type
if CONF_USE_TRANSPARENCY not in config:
config[CONF_USE_TRANSPARENCY] = is_transparent_type
if is_transparent_type and not config[CONF_USE_TRANSPARENCY]:
raise cv.Invalid(f"Image type {image_type} must always be transparent.")
return config
ANIMATION_SCHEMA = cv.Schema(
cv.All(
{
cv.Required(CONF_ID): cv.declare_id(Animation_),
cv.Required(CONF_FILE): cv.file_,
cv.Optional(CONF_RESIZE): cv.dimensions,
cv.Optional(CONF_TYPE, default="BINARY"): cv.enum(
espImage.IMAGE_TYPE, upper=True
),
# Not setting default here on purpose; the default depends on the image type,
# and thus will be set in the "validate_cross_dependencies" validator.
cv.Optional(CONF_USE_TRANSPARENCY): cv.boolean,
cv.Optional(CONF_LOOP): cv.All(
{
cv.Optional(CONF_START_FRAME, default=0): cv.positive_int,
cv.Optional(CONF_END_FRAME): cv.positive_int,
cv.Optional(CONF_REPEAT): cv.positive_int,
}
),
cv.GenerateID(CONF_RAW_DATA_ID): cv.declare_id(cg.uint8),
},
validate_cross_dependencies,
)
)
CONFIG_SCHEMA = cv.All(font.validate_pillow_installed, ANIMATION_SCHEMA)
NEXT_FRAME_SCHEMA = automation.maybe_simple_id(
{
cv.GenerateID(): cv.use_id(Animation_),
}
)
PREV_FRAME_SCHEMA = automation.maybe_simple_id(
{
cv.GenerateID(): cv.use_id(Animation_),
}
)
SET_FRAME_SCHEMA = cv.Schema(
{
cv.GenerateID(): cv.use_id(Animation_),
cv.Required(CONF_FRAME): cv.uint16_t,
}
)
@automation.register_action("animation.next_frame", NextFrameAction, NEXT_FRAME_SCHEMA)
@automation.register_action("animation.prev_frame", PrevFrameAction, PREV_FRAME_SCHEMA)
@automation.register_action("animation.set_frame", SetFrameAction, SET_FRAME_SCHEMA)
async def animation_action_to_code(config, action_id, template_arg, args):
paren = await cg.get_variable(config[CONF_ID])
var = cg.new_Pvariable(action_id, template_arg, paren)
if (frame := config.get(CONF_FRAME)) is not None:
template_ = await cg.templatable(frame, args, cg.uint16)
cg.add(var.set_frame(template_))
return var
async def to_code(config):
from PIL import Image
path = CORE.relative_config_path(config[CONF_FILE])
try:
image = Image.open(path)
except Exception as e:
raise core.EsphomeError(f"Could not load image file {path}: {e}")
width, height = image.size
frames = image.n_frames
if CONF_RESIZE in config:
new_width_max, new_height_max = config[CONF_RESIZE]
ratio = min(new_width_max / width, new_height_max / height)
width, height = int(width * ratio), int(height * ratio)
else:
if width > 500 or height > 500:
_LOGGER.warning(
'The image "%s" you requested is very big. Please consider'
" using the resize parameter.",
path,
)
transparent = config[CONF_USE_TRANSPARENCY]
if config[CONF_TYPE] == "GRAYSCALE":
data = [0 for _ in range(height * width * frames)]
pos = 0
for frameIndex in range(frames):
image.seek(frameIndex)
frame = image.convert("LA", dither=Image.Dither.NONE)
if CONF_RESIZE in config:
frame = frame.resize([width, height])
pixels = list(frame.getdata())
if len(pixels) != height * width:
raise core.EsphomeError(
f"Unexpected number of pixels in {path} frame {frameIndex}: ({len(pixels)} != {height*width})"
)
for pix, a in pixels:
if transparent:
if pix == 1:
pix = 0
if a < 0x80:
pix = 1
data[pos] = pix
pos += 1
elif config[CONF_TYPE] == "RGBA":
data = [0 for _ in range(height * width * 4 * frames)]
pos = 0
for frameIndex in range(frames):
image.seek(frameIndex)
frame = image.convert("RGBA")
if CONF_RESIZE in config:
frame = frame.resize([width, height])
pixels = list(frame.getdata())
if len(pixels) != height * width:
raise core.EsphomeError(
f"Unexpected number of pixels in {path} frame {frameIndex}: ({len(pixels)} != {height*width})"
)
for pix in pixels:
data[pos] = pix[0]
pos += 1
data[pos] = pix[1]
pos += 1
data[pos] = pix[2]
pos += 1
data[pos] = pix[3]
pos += 1
elif config[CONF_TYPE] == "RGB24":
data = [0 for _ in range(height * width * 3 * frames)]
pos = 0
for frameIndex in range(frames):
image.seek(frameIndex)
frame = image.convert("RGBA")
if CONF_RESIZE in config:
frame = frame.resize([width, height])
pixels = list(frame.getdata())
if len(pixels) != height * width:
raise core.EsphomeError(
f"Unexpected number of pixels in {path} frame {frameIndex}: ({len(pixels)} != {height*width})"
)
for r, g, b, a in pixels:
if transparent:
if r == 0 and g == 0 and b == 1:
b = 0
if a < 0x80:
r = 0
g = 0
b = 1
data[pos] = r
pos += 1
data[pos] = g
pos += 1
data[pos] = b
pos += 1
elif config[CONF_TYPE] in ["RGB565", "TRANSPARENT_IMAGE"]:
data = [0 for _ in range(height * width * 2 * frames)]
pos = 0
for frameIndex in range(frames):
image.seek(frameIndex)
frame = image.convert("RGBA")
if CONF_RESIZE in config:
frame = frame.resize([width, height])
pixels = list(frame.getdata())
if len(pixels) != height * width:
raise core.EsphomeError(
f"Unexpected number of pixels in {path} frame {frameIndex}: ({len(pixels)} != {height*width})"
)
for r, g, b, a in pixels:
R = r >> 3
G = g >> 2
B = b >> 3
rgb = (R << 11) | (G << 5) | B
if transparent:
if rgb == 0x0020:
rgb = 0
if a < 0x80:
rgb = 0x0020
data[pos] = rgb >> 8
pos += 1
data[pos] = rgb & 0xFF
pos += 1
elif config[CONF_TYPE] in ["BINARY", "TRANSPARENT_BINARY"]:
width8 = ((width + 7) // 8) * 8
data = [0 for _ in range((height * width8 // 8) * frames)]
for frameIndex in range(frames):
image.seek(frameIndex)
if transparent:
alpha = image.split()[-1]
has_alpha = alpha.getextrema()[0] < 0xFF
frame = image.convert("1", dither=Image.Dither.NONE)
if CONF_RESIZE in config:
frame = frame.resize([width, height])
if transparent:
alpha = alpha.resize([width, height])
for x, y in [(i, j) for i in range(width) for j in range(height)]:
if transparent and has_alpha:
if not alpha.getpixel((x, y)):
continue
elif frame.getpixel((x, y)):
continue
pos = x + y * width8 + (height * width8 * frameIndex)
data[pos // 8] |= 0x80 >> (pos % 8)
else:
raise core.EsphomeError(
f"Animation f{config[CONF_ID]} has not supported type {config[CONF_TYPE]}."
)
rhs = [HexInt(x) for x in data]
prog_arr = cg.progmem_array(config[CONF_RAW_DATA_ID], rhs)
var = cg.new_Pvariable(
config[CONF_ID],
prog_arr,
width,
height,
frames,
espImage.IMAGE_TYPE[config[CONF_TYPE]],
)
cg.add(var.set_transparency(transparent))
if loop_config := config.get(CONF_LOOP):
start = loop_config[CONF_START_FRAME]
end = loop_config.get(CONF_END_FRAME, frames)
count = loop_config.get(CONF_REPEAT, -1)
cg.add(var.set_loop(start, end, count))
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