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small3dlib/img2array.py

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2019-06-01 22:28:12 +02:00
# Python tool to convert an image to C array for small3dlib.
#
# by drummyfish
# released under CC0 1.0.
from PIL import Image
FILENAME = "house.png"
NAME = "house"
OUT_WIDTH = 256
OUT_HEIGHT = 256
image = Image.open(FILENAME).convert("RGB")
pixels = image.load()
image2 = Image.new("RGB",(OUT_WIDTH,OUT_HEIGHT),color="white")
pixels2 = image2.load()
imageArray = []
for y in range(OUT_WIDTH):
for x in range(OUT_HEIGHT):
coord = (
int(x / float(OUT_WIDTH) * image.size[0]),
int(y / float(OUT_HEIGHT) * image.size[1]))
pixel = pixels[coord]
imageArray.append(pixel)
pixels2[x,y] = pixel
print("#define " + NAME.upper() + "_WIDTH " + str(OUT_WIDTH))
print("#define " + NAME.upper() + "_HEIGHT " + str(OUT_HEIGHT))
print("")
print("uint8_t " + NAME + "Texture[" + NAME.upper() + "_WIDTH * " + NAME.upper() + "_HEIGHT * 3] = {")
arrayString = ""
lineLen = 0
for v in imageArray:
for c in v:
item = str(c) + ","
lineLen += len(item)
if lineLen > 80:
arrayString += "\n"
lineLen -= 80
arrayString += item
print(arrayString[:-1])
print("}; // " + NAME + "Texture")
image2.save("out.png")