Archived
1
0
This repo is archived. You can view files and clone it, but cannot push or open issues or pull requests.
controller/Scan/STLcd/bitmap2Struct.py
Jacob Alexander 38516d5342 Merge pull request #73 from joshuaflanagan/example_script_variables
Stop requiring editing of example scripts
2015-11-10 11:24:03 -08:00

199 lines
4.8 KiB
Python
Executable File

#!/usr/bin/env python3
# Copyright (C) 2015 by Jacob Alexander
#
# This file is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This file is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this file. If not, see <http://www.gnu.org/licenses/>.
# Imports
import sys
from array import *
from PIL import Image # Use pillow instead of PIL, it works with Python 3
# Convenience class to deal with converting images to a C array
class STLcdGraphic:
# Some constants for the LCD Driver
page_width = 8
page_max_length = 132
array('B')
def __init__( self, height, width ):
self.height = height
self.width = width
# Calculate number of pages
self.page_count = int( self.height / self.page_width )
self.page_length = self.width
# Initialize pages to 0's
self.page_data = []
for page in range( 0, self.page_count ):
self.page_data.append( array( 'B', [0] * self.page_length ) )
def setpixel( self, x, y ):
# Calculate which page
page = int( ( self.height - y ) / self.page_width )
if page == 4:
print("YAR", (x,y))
# Calculate which byte
byte = x
# Calculate which bit
bit = int( ( self.height - y ) % self.page_width )
# Set pixel bit
self.page_data[ page ][ byte ] |= (1 << bit)
def getpage( self, page ):
return self.page_data[ page ]
def getarray( self ):
struct = "{\n"
for page in range( 0, self.page_count ):
for elem in self.page_data[ page ]:
struct += "0x{0:02x}, ".format( elem )
if page != self.page_count - 1:
struct += "\n"
struct += "\n}"
return struct
# Prints out what the image will look like on the display
def preview( self ):
# Top border first
display = "+"
for pixel in range( 0, self.width ):
display += "-"
display += "+\n"
# Each Page
for page in range( self.page_count - 1, -1, -1 ):
# Each Bit (Line)
for line in range( 7, -1, -1 ):
# Border
display += "|"
# Each Byte (Column/Pixel)
for byte in range( 0, self.width ):
if self.page_data[ page ][ byte ] & (1 << line):
display += "*"
else:
display += " "
# Border
display += "|\n"
# Bottom border
display += "+"
for pixel in range( 0, self.width ):
display += "-"
display += "+\n"
return display
filename = sys.argv[1]
if filename is None:
print( "You must specify a bitmap filename. Try './bitmap2Struct.py ic_logo_lcd.bmp'" )
sys.exit( 1 )
max_height = 32
max_width = 128
x_offset = 0
y_offset = 0
output_image = STLcdGraphic( max_height, max_width )
# Load the input filename and convert to black & white
try:
input_image = Image.open( filename ).convert('1')
except:
print( "Unable to load image '{0}'".format( filename ) )
# Check the image size to see if within the bounds of the display
if input_image.size[0] > max_width or input_image.size[1] > max_height:
print( "ERROR: '{0}:{1}' is too large, must be no larger than {2}x{3}".format(
filename,
( input_image.format, input_image.size, input_image.mode ),
max_width,
max_height )
)
sys.exit( 1 )
# Center the image
height_start = int( ( max_height - input_image.size[1] ) / 2 )
height_end = int( height_start + input_image.size[1] )
width_start = int( ( max_width - input_image.size[0] ) / 2 )
width_end = int( width_start + input_image.size[0] )
#print( height_start )
#print( height_end )
#print( width_start )
#print( width_end )
# Iterate over all of the pixels
# Also prepare the debug view of the image (disp_test)
disp_test = "+"
for pixel in range( 0, max_width ):
disp_test += "-"
disp_test += "+\n"
for y in range( 0, max_height ):
disp_test += "|"
# Check if within height range
if not ( y >= height_start and y < height_end ):
disp_test += " " * max_width + "|\n|"
continue
for x in range( 0, max_width ):
# Check if within width range
if not ( x >= width_start and x < width_end ):
disp_test += " "
continue
# Use image value to determine pixel
try:
if input_image.getpixel( (x - width_start, y - height_start) ) == 0:
disp_test += "*"
output_image.setpixel( x, y + 1 ) # +1 is due to page boundary
else:
disp_test += " "
except IndexError:
print( (x - width_start,y - height_start) )
pass
disp_test += "|\n"
disp_test += "+"
for pixel in range( 0, max_width ):
disp_test += "-"
disp_test += "+\n"
# BMP Conversion preview
print( disp_test )
print ( output_image.preview() )
#print ()
print( "uint8_t array[] = {0};".format( output_image.getarray() ) )