Files
szuru-eink-bot/epd/epd_uploader.py
2025-07-20 17:03:50 +00:00

214 lines
7.7 KiB
Python

import requests
import os
import sys
def byteToStr(v):
return chr((v & 0xF) + 97) + chr(((v >> 4) & 0xF) + 97)
def wordToStr(v):
return byteToStr(v & 0xFF) + byteToStr((v >> 8) & 0xFF)
# Reimplementation of u_data from scriptD.js
def _u_data(pixel_indices, c, px_ind_start):
rqMsg = ""
pxInd = px_ind_start
max_rq_len = 1000 # Max length of rqMsg
if c == -1: # 16-bit values
while pxInd < len(pixel_indices) and len(rqMsg) < max_rq_len:
v = 0
for i in range(0, 16, 2): # This means 8 iterations, packing 8 pixels
if pxInd < len(pixel_indices):
v |= (
pixel_indices[pxInd] << i
) # This is likely wrong, should be 4 bits per pixel
pxInd += 1
rqMsg += wordToStr(v)
elif c == -2: # 7-color, 4-bit values
while pxInd < len(pixel_indices) and len(rqMsg) < max_rq_len:
v = 0
for i in range(0, 16, 4): # 4 iterations, packing 4 pixels
if pxInd < len(pixel_indices):
v |= pixel_indices[pxInd] << i
pxInd += 1
rqMsg += wordToStr(v)
else: # Monochrome, 1-bit values
while pxInd < len(pixel_indices) and len(rqMsg) < max_rq_len:
v = 0
for i in range(8): # Packs 8 pixels into 1 byte
if pxInd < len(pixel_indices) and pixel_indices[pxInd] != c:
v |= 128 >> i
pxInd += 1
rqMsg += byteToStr(v)
return rqMsg, pxInd
# Reimplementation of u_line from scriptD.js
def _u_line(pixel_indices, c, px_ind_start):
rqMsg = ""
pxInd = px_ind_start
max_rq_len = 1000 # Max length of rqMsg
while len(rqMsg) < max_rq_len:
x = 0
while x < 122: # Processes 122 pixels at a time
v = 0
for i in range(8):
if pxInd < len(pixel_indices) and x < 122:
if pixel_indices[pxInd] != c:
v |= 128 >> i
pxInd += 1
x += 1
else:
break # Break if no more pixels or 122 pixels processed
rqMsg += byteToStr(v)
if x >= 122: # If 122 pixels processed, break inner loop
break
return rqMsg, pxInd
def upload_image(img, ip_addr, epd_ind, epdArr, palArr, getNear):
print(f"[DEBUG] Starting upload_image for EPD index {epd_ind} to {ip_addr}")
url_prefix = f"http://{ip_addr}/"
w, h = img.size
pal_ind = epdArr[epd_ind][2]
curPal = palArr[pal_ind]
pixels = list(img.getdata())
pixel_indices = [getNear(r, g, b, curPal) for r, g, b in pixels]
pxInd = 0
stInd = 0
def u_send(cmd, next_state=False):
nonlocal stInd
full_url = url_prefix + cmd
try:
response = requests.post(full_url)
response.raise_for_status() # Raise HTTPError for bad responses (4xx or 5xx)
if next_state:
stInd += 1
return 0
except requests.exceptions.RequestException as e:
print(f"[ERROR] Error sending command {cmd}: {e}")
raise # Re-raise the exception to stop execution
def u_next():
nonlocal pxInd
pxInd = 0
return u_send("NEXT_", True)
def u_done():
sys.stdout.write("\n") # Ensure progress bar finishes on a new line
print("Image upload complete!")
return u_send("SHOW_", True)
def u_show(a_len, k1, k2, rqMsg_val):
nonlocal pxInd
total_pixels = len(pixel_indices)
current_progress_pixels = pxInd
overall_percentage = (
(current_progress_pixels / total_pixels) * 100 if total_pixels > 0 else 0
)
bar_length = 50
filled_length = int(bar_length * overall_percentage // 100)
bar = "#" * filled_length + "-" * (bar_length - filled_length)
sys.stdout.write(f"\rProgress: |{bar}| {overall_percentage:.2f}%")
sys.stdout.flush()
return u_send(rqMsg_val + wordToStr(len(rqMsg_val)) + "LOAD_", pxInd >= a_len)
# Main upload logic based on scriptD.js
try:
# Initial EPD command
epd_cmd_char = chr(epd_ind + 97) if epd_ind < 26 else chr(epd_ind - 26 + 65)
u_send(f"EPD{epd_cmd_char}_")
# Conditional logic based on epd_ind, mimicking scriptD.js
if epd_ind in [3, 39, 43]:
# u_line flow
while True:
if stInd == 0:
rqMsg, pxInd = _u_line(pixel_indices, 0, pxInd)
u_show(len(pixel_indices), 0, 100, rqMsg)
elif stInd == 1:
u_done()
break
elif epd_ind == 40:
# u_line with u_next flow
while True:
if stInd == 0:
rqMsg, pxInd = _u_line(pixel_indices, 0, pxInd)
u_show(len(pixel_indices), 0, 50, rqMsg)
elif stInd == 1:
u_next()
elif stInd == 2:
rqMsg, pxInd = _u_line(pixel_indices, 3, pxInd)
u_show(len(pixel_indices), 50, 50, rqMsg)
elif stInd == 3:
u_done()
break
elif epd_ind in [0, 3, 6, 7, 9, 12, 16, 19, 22, 26, 27, 28]:
# u_data flow (monochrome)
while True:
if stInd == 0:
rqMsg, pxInd = _u_data(pixel_indices, 0, pxInd)
u_show(len(pixel_indices), 0, 100, rqMsg)
elif stInd == 1:
u_done()
break
elif 15 < epd_ind < 22:
# u_data flow (16-bit values, c=-1)
while True:
if stInd == 0:
rqMsg, pxInd = _u_data(pixel_indices, -1, pxInd)
u_show(len(pixel_indices), 0, 100, rqMsg)
elif stInd == 1:
u_done()
break
elif epd_ind in [25, 37]:
# u_data flow (7-color, c=-2)
while True:
if stInd == 0:
rqMsg, pxInd = _u_data(pixel_indices, -2, pxInd)
u_show(len(pixel_indices), 0, 100, rqMsg)
elif stInd == 1:
u_done()
break
else:
# Default u_data flow with u_next
while True:
if stInd == 0:
c_val = -1 if epd_ind in [1, 12] else 0
rqMsg, pxInd = _u_data(pixel_indices, c_val, pxInd)
u_show(len(pixel_indices), 0, 50, rqMsg)
elif stInd == 1:
u_next()
elif stInd == 2:
# Special handling for 7.5b V2 (epd_ind 23) red channel
if epd_ind == 23:
# Encode only red pixels (palette index 2)
red_pixel_indices = [
0 if p == 2 else 2 for p in pixel_indices
] # Invert red channel: 0 for red, 2 for non-red
rqMsg, pxInd = _u_data(
red_pixel_indices, 0, pxInd
) # Use monochrome encoding for this layer
else:
rqMsg, pxInd = _u_data(pixel_indices, 3, pxInd)
u_show(len(pixel_indices), 50, 50, rqMsg)
elif stInd == 3:
u_done()
break
print("Image uploaded successfully!")
except requests.exceptions.RequestException as e:
print(f"[ERROR] Error during image upload: {e}")
except Exception as e:
print(f"[ERROR] An unexpected error occurred during upload: {e}")