add GBOY mode

Author: jepler

adafruit_pycamera/__init__.py

@@ -170,7 +170,7 @@ class PyCamera:  # pylint: disable=too-many-instance-attributes,too-many-public-
         "Sepia",
         "Solarize",
     )
-    modes = ("JPEG", "GIF", "STOP")
+    modes = ("JPEG", "GIF", "GBOY", "STOP")
 
     _INIT_SEQUENCE = (
         b"\x01\x80\x78"  # _SWRESET and Delay 120ms
@@ -488,7 +488,7 @@ def mode(self, setting):
         self._mode_label.text = self.modes[setting]
         if self.modes[setting] == "STOP":
             self.stop_motion_frame = 0
-        if self.modes[setting] == "GIF":
+        if self.modes[setting] in ("GIF", "GBOY"):
             self._res_label.text = ""
         else:
             self.resolution = self.resolution  # kick it to reset the display

examples/camera/code.py

@@ -30,6 +30,11 @@
             onionskin, last_frame, new_frame, displayio.Colorspace.RGB565_SWAPPED
         )
         pycam.blit(onionskin)
+    elif pycam.mode_text == "GBOY":
+        bitmaptools.dither(
+            last_frame, pycam.continuous_capture(), displayio.Colorspace.RGB565_SWAPPED
+        )
+        pycam.blit(last_frame)
     else:
         pycam.blit(pycam.continuous_capture())
     # print("\t\t", capture_time, blit_time)
@@ -57,6 +62,23 @@
                 time.sleep(0.5)
             pycam.live_preview_mode()
 
+        if pycam.mode_text == "GBOY":
+            try:
+                f = pycam.open_next_image("gif")
+            except RuntimeError as e:
+                pycam.display_message("Error\nNo SD Card", color=0xFF0000)
+                time.sleep(0.5)
+                continue
+
+            with gifio.GifWriter(
+                f,
+                pycam.camera.width,
+                pycam.camera.height,
+                displayio.Colorspace.RGB565_SWAPPED,
+                dither=True,
+            ) as g:
+                g.add_frame(last_frame, 1)
+
         if pycam.mode_text == "GIF":
             try:
                 f = pycam.open_next_image("gif")