From fd69c0e2397b5665769baceabf902fea01b81008 Mon Sep 17 00:00:00 2001
From: Melissa LeBlanc-Williams <melissa@adafruit.com>
Date: Wed, 27 Sep 2023 11:21:59 -0700
Subject: [PATCH] Speed improvements by making larger buffer

---
 displayio/_display.py  | 4 +++-
 displayio/_palette.py  | 8 +++++---
 displayio/_tilegrid.py | 1 +
 3 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/displayio/_display.py b/displayio/_display.py
index d7d04cf..022103d 100644
--- a/displayio/_display.py
+++ b/displayio/_display.py
@@ -328,7 +328,6 @@ class Display:
     def _refresh_area(self, area) -> bool:
         """Loop through dirty areas and redraw that area."""
         # pylint: disable=too-many-locals
-        buffer_size = 128
 
         clipped = Area()
         # Clip the area to the display by overlapping the areas.
@@ -340,6 +339,9 @@ class Display:
         pixels_per_word = 32 // self._core.colorspace.depth
         pixels_per_buffer = clipped.size()
 
+        # We should have lots of memory
+        buffer_size = clipped.size() // pixels_per_word
+
         subrectangles = 1
         # for SH1107 and other boundary constrained controllers
         #      write one single row at a time
diff --git a/displayio/_palette.py b/displayio/_palette.py
index c00d454..a017254 100644
--- a/displayio/_palette.py
+++ b/displayio/_palette.py
@@ -98,21 +98,23 @@ class Palette:
         self._colors[palette_index].transparent = False
         self._needs_refresh = True
 
+    """
     def _get_palette(self):
-        """Generate a palette for use with PIL"""
+        # Generate a palette for use with PIL
         palette = []
         for color in self._colors:
             palette += color.rgba()[0:3]
         return palette
 
     def _get_alpha_palette(self):
-        """Generate an alpha channel palette with white being
-        opaque and black being transparent"""
+        # Generate an alpha channel palette with white being
+        # opaque and black being transparent
         palette = []
         for color in self._colors:
             for _ in range(3):
                 palette += [0 if color.transparent else 0xFF]
         return palette
+    """
 
     def _get_color(
         self,
diff --git a/displayio/_tilegrid.py b/displayio/_tilegrid.py
index 6705601..dc392b9 100644
--- a/displayio/_tilegrid.py
+++ b/displayio/_tilegrid.py
@@ -400,6 +400,7 @@ class TileGrid:
                             # Reverse the shift by subtracting it from the leftmost shift
                             shift = (pixels_per_byte - 1) * colorspace.depth - shift
                         buffer[offset // pixels_per_byte] |= output_pixel.pixel << shift
+
         return full_coverage
 
     def _finish_refresh(self):
-- 
2.49.0