merged with xandark

.gitignore

@@ -1 +1,4 @@
 .DS_Store
+*/.DS_Store
+
+.DS_Store

DSK Image/DSK-Image.py

@@ -12,6 +12,8 @@
 
 
 import os,sys				# filesystem functions
+import subprocess
+
 
 try:
 	import png # PNG image library
@@ -26,12 +28,25 @@ except:
     print("\n\nUsage: python "+ sys.argv[0] +" [filename]\n\n [filename] should be a .DSK file of 143kb.\n")
     sys.exit(1)				# exit on exception - no file chosen
 
-TEMPFILENAME = "DiskImageTEMP.png"
-PNG = open(TEMPFILENAME, "wb")	# open a PNG for writing
+
+print("Checking " + INPUTFILE + "...\n")
+
+# to do: check for 140k 5.25'' disks vs 400k/800k 3.5''	and adjust accordingly
+
+if (os.path.getsize(INPUTFILE)) != 143360:		# check file size. for 5.25'', it needs to be 143k
+	print("\n\nOops. Is " + INPUTFILE + " a DSK file of 143kb?\n\n")
+	sys.exit(1)				# exit on exception - file is empty, etc
 
 					# The point: Make a PNG image from the data on a floppy disk image.
-					# 35 tracks, each with 16 sectors of 256 bytes each, for a total of 143,360 bytes
+					# 5.15'' disks have 35 tracks, each with 16 sectors of 256 bytes each, for a total of 143,360 bytes
 					# so 35 lines of 4096 px.
+TRACKS = 35
+SECTORS = 16
+BYTESPERSECTOR = 256
+
+TEMPFILENAME = "DiskImageTEMP.png"
+PNG = open("DiskImageTEMP.png", "wb")	# open a PNG for writing
+
 
 					# new, empty arrays
 BYTES  = []
@@ -50,9 +65,9 @@ except:
 
 print("\n Starting.\n")
 
-for TRACK in range(0,35,1):		# for each of the 35 tracks
+for TRACK in range(0,TRACKS,1):		# for each of the 35 tracks
 	LINE=[]				# start a new line of pixels
-    for SECTOR in range(0,4096,1):	# write the bytes for the sectors in that track to the line array
+	for SECTOR in range(0,SECTORS*BYTESPERSECTOR,1):	# write the bytes for the sectors in that track to the line array
 		offset = (SECTOR * TRACK) + SECTOR
 		LINE.append(BYTES[(SECTOR * TRACK) + SECTOR])
 
@@ -62,11 +77,11 @@ for TRACK in range(0,35,1):		# for each of the 35 tracks
 print("\n Done.\n")
 
 					# write to the PNG file
-w = png.Writer(4096,35, greyscale=True, bitdepth=8) 
+w = png.Writer(SECTORS*BYTESPERSECTOR,TRACKS, greyscale=True, bitdepth=8)
 w.write(PNG, PIXELS)			# each number in the array becomes a pixel in the image. each array becomes a line.
 
-print(" Writing to disk. Chunka-chunk-cka. Whirr...\n")
-
+sys.stdout.write("\n\n\r Writing bytes to disk. Chunka-chunka-chunk. Whirr.\n\n")
+sys.stdout.flush()
 
 DSK.close()				# done with these files. close them.
 PNG.close()
@@ -75,11 +90,16 @@ PNG.close()
 OUTPUTFILE = os.path.join(INPUTFILE + ".png")
 					# set a destination file same as DSK, but with PNG extension
 
-os.system('convert '+TEMPFILENAME+' -matte -virtual-pixel transparent -resize 1024x1024! -rotate 90 -distort Polar "512 110 512,512 -180,180" "'+OUTPUTFILE+'"')
-					# Using ImageMagick, convert the 4096x35px image to a square, rotate, then rotate around an axis.
-					# NOTE: Windows command line needs to have Polar coordinates enquoted with " not '
-					# NOTE: Windows has a native command called convert which does something very different 
-					#       from ImageMagick's convert command, so obviously this will fail if IM is not installed
+
+
+try:
+	subprocess.call(['convert', 'DiskImageTEMP.png', '-matte', '-virtual-pixel', 'transparent', '-resize', '1024x1024!', '-rotate', '90', '-distort', 'Polar', '512 110 512,512 -180,180', OUTPUTFILE])
+					# convert the 4096x35px image to a square, rotate, then rotate around an axis.
+except OSError:
+    print("\n\nOops. This script requires ImageMagick: http://www.imagemagick.org/")
+    sys.exit(1)				# exit on exception - needs imagemagick installed
+
+
 
 if 'win32' in sys.platform:
 	# Because the Windows "start" commandline command cannot take an enquoted file or pathname,