Added framerate test

examples/framerate.py

@@ -0,0 +1,69 @@
+# Copyright (c) 2014 Adafruit Industries
+# Author: Tony DiCola
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+import time
+import sys
+import math
+
+from PIL import Image
+from PIL import ImageDraw
+import ST7735 as ST7735
+
+SPI_SPEED_MHZ = 10 # Higher speed = higher framerate
+
+# Create ST7735 LCD display class.
+disp = ST7735.ST7735(
+    port=0,
+    cs=0,
+    dc=24,
+    backlight=18,
+    rotation=90,
+    spi_speed_hz=10 * 1000000
+)
+
+WIDTH = disp.width
+HEIGHT = disp.height
+STEPS = WIDTH * 2
+images = []
+
+for step in range(STEPS):
+    image = Image.new("RGB", (WIDTH, HEIGHT), (0, 0, 128))
+    draw = ImageDraw.Draw(image)
+
+    if step % 2 == 0:
+        draw.rectangle((79, 0, 159, 79), (0, 128, 0))
+    else:
+        draw.rectangle((0, 0, 79, 79), (0, 128, 0))
+
+    f = math.sin((float(step) / STEPS) * math.pi)
+    offset_left = int(f * WIDTH)
+    draw.ellipse((offset_left, 35, offset_left + 10, 45), (255, 0, 0))
+
+    images.append(image)
+
+count = 0
+time_start = time.time()
+
+while True:
+    disp.display(images[count % len(images)])
+    count += 1
+    time_current = time.time() - time_start
+    if count % 120 == 0:
+        print("Time: {}, Frames: {}, FPS: {}".format(time_current, count, count / time_current))