nemunaire/waveshareteam-e-Paper
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Support drawing rotated images.

Browse source
This commit is contained in:
Ryan Ziolko 2021-03-09 22:19:08 +00:00
commit 423b6166a0
1 changed files with 11 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

13
RaspberryPi_JetsonNano/python/lib/waveshare_epd/epd5in65f.py
View file

@ -141,11 +141,20 @@ class EPD:
def getbuffer(self, image): def getbuffer(self, image):
# Create a pallette with the 7 colors supported by the panel # Create a pallette with the 7 colors supported by the panel
pal_image= Image.new("P", (1,1)) pal_image = Image.new("P", (1,1))
pal_image.putpalette( (0,0,0, 255,255,255, 0,255,0, 0,0,255, 255,0,0, 255,255,0, 255,128,0) + (0,0,0)*249) pal_image.putpalette( (0,0,0, 255,255,255, 0,255,0, 0,0,255, 255,0,0, 255,255,0, 255,128,0) + (0,0,0)*249)
# Check if we need to rotate the image
imwidth, imheight = image.size
if(imwidth == self.width and imheight == self.height):
image_temp = image
elif(imwidth == self.height and imheight == self.width):
image_temp = image.rotate(90, expand=True)
else:
logging.warning("Invalid image dimensions: %d x %d, expected %d x %d" % (imwidth, imheight, self.width, self.height))
# Convert the soruce image to the 7 colors, dithering if needed # Convert the soruce image to the 7 colors, dithering if needed
image_7color = image.convert("RGB").quantize(palette=pal_image) image_7color = image_temp.convert("RGB").quantize(palette=pal_image)
buf_7color = bytearray(image_7color.tobytes('raw')) buf_7color = bytearray(image_7color.tobytes('raw'))
# PIL does not support 4 bit color, so pack the 4 bits of color # PIL does not support 4 bit color, so pack the 4 bits of color