#author("2020-06-03T22:18:30+09:00","default:TeleportDresser","TeleportDresser")
#code(Python){{

# coding: utf-8
from PIL import Image
import smbus
import time
import sys
import requests
import os

off_x=0
off_y=0

imax=75
jmax=16

#anime_pics_name=["anime-ex1_01.png","anime-ex1_02.png",
#            "anime-ex1_03.png","anime-ex1_04.png","anime-ex1_05.png"]
#anime_img=["","","","",""]

anime_img=[]

i2c = smbus.SMBus(1) # 注:ラズパイのI2Cポート

def main():
    print( 'number of arguments:', len(sys.argv), 'arguments.')
    arglist = sys.argv
    print( 'Argument List:', sys.argv)
    anime_dir=arglist[1]
    print( 'file_name(dir)=', anime_dir)

    try:
        anime_pics_name = os.listdir(anime_dir)
    except:
        anime_dir="/home/pi/Pictures/"
        anime_pics_name=["anime-ex1_01.png","anime-ex1_02.png",
            "anime-ex1_03.png","anime-ex1_04.png","anime-ex1_05.png"]
    pic_num=len(anime_pics_name)
    print(pic_num)
    print(anime_pics_name)
    anime_img = ["" for i in range(pic_num)]
    anime_pics_name.sort()
    for i in range(pic_num):
        pic_name = anime_dir+"/"+anime_pics_name[i]
        print(pic_name)
        #anime_img.appned(Image.open(pic_name))
        img = Image.open(pic_name)
        anime_img[i]=img
    for j in range(20):
        for i in range(pic_num):
            show_one_pic(anime_img[i])
            #time.sleep(0.1)
              
#
# command:
#   clear... 0x00
#   show ... 0x01
#   set1 ix,iy,r,g,b
#         ... 0x02  *,*,  *,*,*
#   setn ix,iy,n, r0,g0,b0, ..r(n-1),g(n-1),b(n-1)   n<=8
#         ... 0x03 *,*, *, *,*,*, ..., *,*,*
#
pixels=[[(0,0,0) for j in range(jmax)] for i in range(imax)]
addrs = [0x30,0x31,0x32,0x33]
fourpix=[0x00, 0x00, 0x04, 0,0,0, 0,0,0, 0,0,0, 0,0,0]
          
def show_one_pic(img):
  img_width, img_height = img.size
  print('width:',img_width)
  print('height:',img_height)

  dx=img_width/jmax
  dy=img_height/imax

  for i in range(imax):
    for j in range(jmax):
        x=off_x+j*dx
        y=off_y+i*dy
        rgb=img.getpixel((x,y))
        pixels[i][j]=rgb

  i2c.write_byte(addrs[0],0x00)
  i2c.write_byte(addrs[1],0x00)
  i2c.write_byte(addrs[2],0x00)
  i2c.write_byte(addrs[3],0x00)
  for i in range(imax):
    for j in range(4):
      for k in range(4):
        p=pixels[i][4*j+k]
        fourpix[3+k*3+0]=p[0]
        fourpix[3+k*3+1]=p[1]
        fourpix[3+k*3+2]=p[2]
      fourpix[0]=i;
      fourpix[1]=0;
      i2c_addr=addrs[j]
      try:
        i2c.write_i2c_block_data(i2c_addr,0x03,fourpix)
      except:
        print('i2c write error at:(',i,',',j,')')
    #time.sleep(0.00001)
  i2c.write_byte(addrs[0],0x01)
  i2c.write_byte(addrs[1],0x01)
  i2c.write_byte(addrs[2],0x01)
  i2c.write_byte(addrs[3],0x01)

main() 

}}
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