Add invert_luminance option (#29)

Author: eigger

custom_components/gicisky/gicisky_ble/devices.py

@@ -13,6 +13,7 @@ class DeviceEntry:
     mirror_y: bool = False
     rotation: int = 0
     compression: bool = False
+    invert_luminance: bool = False
     manufacturer: str = "Gicisky"
     max_voltage: float = 2.9
     min_voltage: float = 2.2
@@ -65,7 +66,8 @@ class DeviceEntry:
         model="EPD 10.2\" BWR",
         width=960,
         height=640,
-        #compression=True,
+        compression=True,
+        invert_luminance=True,
         max_voltage=3.0
     ),
 }

custom_components/gicisky/gicisky_ble/writer.py

@@ -100,6 +100,7 @@ def __init__(
         self.mirror_x = device.mirror_x
         self.mirror_y = device.mirror_y
         self.compression = device.compression
+        self.invert_luminance = device.invert_luminance
         self.packet_size = 0 #(device.width * device.height) // 8 * (2 if device.red else 1)
         self.event: Event = Event()
         self.command_data: bytes | None = None
@@ -262,7 +263,10 @@ def _make_image_packet(self, image: Image, threshold: int, red_threshold: int) -
                 r, g, b = pixels[px]
 
                 luminance = 0.2126 * r + 0.7152 * g + 0.0722 * b
-                if self.compression:
+                if self.invert_luminance:
+                    if luminance > threshold:
+                        current_byte |= (1 << bit_pos)
+                elif self.compression:
                     if luminance < threshold:
                         current_byte |= (1 << bit_pos)
                 else:

custom_components/gicisky/manifest.json

@@ -18,7 +18,7 @@
   "documentation": "https://github.com/eigger/hass-gicisky",
   "issue_tracker": "https://github.com/eigger/hass-gicisky/issues",
   "iot_class": "local_push",
-  "version": "1.4.4",
+  "version": "1.4.5",
   "requirements": [
     "qrcode[pil]==7.4.2",
     "python-barcode==0.15.1"