1 files changed, 116 insertions, 0 deletions
diff --git a/src/compile_eeprom.py b/src/compile_eeprom.py
new file mode 100755
index 0000000..52dbbfc
--- /dev/null
+++ b/src/compile_eeprom.py
@@ -0,0 +1,116 @@
+#!/usr/bin/env python3
+from PIL import BdfFontFile, Image
+import os
+import serial
+import argparse
+
+compiled_output_path = 'compiled_eeprom'
+header_path = 'eeprom_address.h'
+eeprom_length = 131072 # 128 kib
+
+data_path = "./eeprom_data"
+
+output = open(compiled_output_path, 'wb')
+header = open(header_path, 'w')
+
+page_bit_width = 128
+page_bit_height = 8
+page_cnt = 4
+
+
+
+#fonts
+# for some reason BdfFontFile.BdfFontFile.bitmap doesn't have proper spacing
+# so we'll just manually go through each character ourselves
+# it's expected I'll rename fonts to how I think they should be refrenced beorehand
+# also note we have no protection from using unsed chars, I can't let this project
+# get to big for litteraly no reason
+
+header.write("/**     GENERATED BY EEPROM COMPILER SCRIPT    **/\n\n")
+header.write("// FONTS\n")
+
+for file in os.listdir("{}/fonts/".format(data_path)):
+    path = "{}/fonts/{}".format(data_path, file)
+    if os.path.isfile(path) and path.split('.')[-1] == 'bdf':
+        with open(path, 'rb') as font_fd:
+            font_bdf = BdfFontFile.BdfFontFile(font_fd)
+            font_name = file.split('.')[0].capitalize()
+
+            header.write("#define FONT_{}_ADDR\t0x{:04x}\n".format(font_name, output.tell()))
+
+            first_char = False
+            for char in enumerate(font_bdf.glyph):
+                if char[1]:
+                    if not first_char:
+                        first_char = True
+                        header.write(("#define FONT_{}_FIRST_CHAR\t{}\n"
+                                "#define FONT_{}_WIDTH\t{}\n"
+                                "#define FONT_{}_HEIGHT\t{}\n").format(
+                            font_name, char[0],
+                            font_name, char[1][-1].size[0],
+                            font_name, char[1][-1].size[1]))
+                    output.write(char[1][-1].tobytes('raw'))
+
+header.write("\n\n// IMAGES\n#define IMG_BEGIN\t0x{:04x}\n".format(output.tell()))
+
+image_cnt = 0
+
+# images
+for file in os.listdir("{}/images/".format(data_path)):
+    path = "{}/images/{}".format(data_path, file)
+    if os.path.isfile(path) and path.split('.')[-1] == 'png':
+        with open(path, 'rb') as image_fd:
+            image_cnt += 1
+            image_bitmap = []
+            image_bitmap_remapped = []
+            image = Image.open(image_fd)
+            if not image.mode == 'RGB':
+                print("this script only compiles RGB formatted photos! (I'm lazy\n")
+                exit(1)
+            header.write("#define IMG_{}_ADDR\t0x{:04x}\n".format(
+                file.split('.')[0].capitalize(),
+                output.tell()))
+            for byte in range(0, len(image.tobytes()), 3):
+                if (byte / 3) % 8 == 0:
+                    image_bitmap.append(0) 
+                if sum(image.tobytes()[byte:byte+3]) > 0:
+                    image_bitmap[-1] |= (int(byte / 3)) % 8
+
+            # is this supposed to be big endian?
+            image_bitmap_remapped = [0] * len(image_bitmap)
+            for bit in range(0, page_bit_width * page_bit_height * page_cnt):
+                w = page_bit_width
+                h = page_bit_height
+                i = bit
+                #I am so sorry.
+                extract_bit = (((i % w) * page_bit_height) + 
+                                       (int(i / w) % page_bit_height) + 
+                                       (int(i / (w * page_bit_height)) * 
+                                       (w * page_bit_height)))
+
+                if (extract_bit % 8) - (bit % 8) >= 0:
+                    image_bitmap_remapped[int(bit / 8)] |= \
+                    (image_bitmap[int(extract_bit / 8)] & (extract_bit % 8)) >> \
+                    ((extract_bit % 8) - (bit % 8)) 
+                else:
+                    image_bitmap_remapped[int(bit / 8)] |= \
+                    (image_bitmap[int(extract_bit / 8)] & (extract_bit % 8)) << \
+                    ((bit % 8) - (extract_bit % 8)) 
+            [output.write(byte.to_bytes(1, 'big')) for byte in image_bitmap_remapped]
+
+header.write("#define IMG_COUNT\t{}\n\n".format(image_cnt))
+            
+
+
+print("EEPROM used: {}% ({} out of {} bits)".format(
+    (output.tell() / eeprom_length) * 100, 
+    output.tell(), eeprom_length))
+
+if(output.tell() > eeprom_length):
+    print("WARNING: You've used more eeprom then there is available!\n")
+
+output.close()
+header.close()
+                    
+
+