use new OnDiskBitmap API

Author: FoamyGuy

README.rst

@@ -109,6 +109,7 @@ Usage Example
     import time
     import board
     import displayio
+    import fourwire
     import adafruit_spd1656
 
     displayio.release_displays()
@@ -130,18 +131,16 @@ Usage Example
 
     g = displayio.Group()
 
-    fn = "/display-ruler-720p.bmp"
+    pic = displayio.OnDiskBitmap("/display-ruler-720p.bmp")
+    t = displayio.TileGrid(pic, pixel_shader=pic.pixel_shader)
+    g.append(t)
 
-    with open(fn, "rb") as f:
-        pic = displayio.OnDiskBitmap(f)
-        t = displayio.TileGrid(pic, pixel_shader=pic.pixel_shader)
-        g.append(t)
+    display.root_group = g
 
-        display.root_group = g
+    display.refresh()
 
-        display.refresh()
+    time.sleep(120)
 
-        time.sleep(120)
 
 Documentation
 =============

examples/spd1656_4in_acep.py

@@ -31,15 +31,13 @@
 
 g = displayio.Group()
 
-fn = "/display-ruler-720p.bmp"
 
-with open(fn, "rb") as f:
-    pic = displayio.OnDiskBitmap(f)
-    t = displayio.TileGrid(pic, pixel_shader=pic.pixel_shader)
-    g.append(t)
+pic = displayio.OnDiskBitmap("/display-ruler-720p.bmp")
+t = displayio.TileGrid(pic, pixel_shader=pic.pixel_shader)
+g.append(t)
 
-    display.root_group = g
+display.root_group = g
 
-    display.refresh()
+display.refresh()
 
-    time.sleep(120)
+time.sleep(120)

examples/spd1656_simpletest.py

@@ -30,15 +30,12 @@
 
 g = displayio.Group()
 
-fn = "/display-ruler-720p.bmp"
+pic = displayio.OnDiskBitmap("/display-ruler-720p.bmp")
+t = displayio.TileGrid(pic, pixel_shader=pic.pixel_shader)
+g.append(t)
 
-with open(fn, "rb") as f:
-    pic = displayio.OnDiskBitmap(f)
-    t = displayio.TileGrid(pic, pixel_shader=pic.pixel_shader)
-    g.append(t)
+display.root_group = g
 
-    display.root_group = g
+display.refresh()
 
-    display.refresh()
-
-    time.sleep(120)
+time.sleep(120)