Add GIF Animation Support (#1378)

* Adding GIF Animation Support

* CLang tidy correction

* Adding Codeowner

esphome/components/animation/__init__.py

@@ -0,0 +1,94 @@
+import logging
+
+from esphome import core
+from esphome.components import display, font
+import esphome.components.image as espImage
+import esphome.config_validation as cv
+import esphome.codegen as cg
+from esphome.const import CONF_FILE, CONF_ID, CONF_TYPE, CONF_RESIZE
+from esphome.core import CORE, HexInt
+
+_LOGGER = logging.getLogger(__name__)
+
+DEPENDENCIES = ['display']
+MULTI_CONF = True
+
+Animation_ = display.display_ns.class_('Animation')
+
+CONF_RAW_DATA_ID = 'raw_data_id'
+
+ANIMATION_SCHEMA = cv.Schema({
+    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),
+    cv.GenerateID(CONF_RAW_DATA_ID): cv.declare_id(cg.uint8),
+})
+
+CONFIG_SCHEMA = cv.All(font.validate_pillow_installed, ANIMATION_SCHEMA)
+
+CODEOWNERS = ['@syndlex']
+
+
+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:
+        image.thumbnail(config[CONF_RESIZE])
+        width, height = image.size
+    else:
+        if width > 500 or height > 500:
+            _LOGGER.warning("The image you requested is very big. Please consider using"
+                            " the resize parameter.")
+
+    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('L', dither=Image.NONE)
+            pixels = list(frame.getdata())
+            for pix in pixels:
+                data[pos] = pix
+                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('RGB')
+            pixels = list(frame.getdata())
+            for pix in pixels:
+                data[pos] = pix[0]
+                pos += 1
+                data[pos] = pix[1]
+                pos += 1
+                data[pos] = pix[2]
+                pos += 1
+
+    elif config[CONF_TYPE] == 'BINARY':
+        width8 = ((width + 7) // 8) * 8
+        data = [0 for _ in range((height * width8 // 8) * frames)]
+        for frameIndex in range(frames):
+            image.seek(frameIndex)
+            frame = image.convert('1', dither=Image.NONE)
+            for y in range(height):
+                for x in range(width):
+                    if frame.getpixel((x, y)):
+                        continue
+                    pos = x + y * width8 + (height * width8 * frameIndex)
+                    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(config[CONF_ID], prog_arr, width, height, frames,
+                     espImage.IMAGE_TYPE[config[CONF_TYPE]])