import os
+import base64
+import codecs
-class TextureExporter:
- def __init__(self):
- self.inline_data = True
+def encode_pixels(pixels):
+ from .datafile import Token
+ return Token(codecs.decode(b"="+base64.b64encode(bytes(pixels))+b"=", "ascii"))
+
+def pixels_to_rgba(pixels):
+ return (int(p*255) for p in pixels)
+
+def pixels_to_rgb(pixels):
+ for i in range(0, len(pixels), 4):
+ yield int(pixels[i]*255)
+ yield int(pixels[i+1]*255)
+ yield int(pixels[i+2]*255)
+
+def pixels_to_rgb_invert_green(pixels):
+ for i in range(0, len(pixels), 4):
+ yield int(pixels[i]*255)
+ yield 255-int(pixels[i+1]*255)
+ yield int(pixels[i+2]*255)
- def export_texture(self, tex_node, usage='RGB'):
+def pixels_to_gray(pixels):
+ for i in range(0, len(pixels), 4):
+ yield int((pixels[i]+pixels[i+1]+pixels[i+2])*255/3)
+
+class TextureExporter:
+ def export_texture(self, tex_node, usage='RGB', *, invert_green=False):
image = tex_node.image
from .datafile import Resource, Statement, Token
- tex_res = Resource(image.name+".tex2d", "texture2d")
+ tex_res = Resource(image.name+".tex", "texture")
+
+ tex_res.statements.append(Statement("type", Token("\\2d")))
if tex_node.use_mipmap:
tex_res.statements.append(Statement("generate_mipmap", True))
colorspace = image.colorspace_settings.name
if usage=='GRAY' and colorspace=='sRGB':
- raise Exception("Grayscale textures with sRGB colorspace are not supported")
+ raise Exception("Unsupported configuration on texture {}: Grayscale with sRGB".format(image.name))
from .util import basename
fn = basename(image.filepath)
- if not self.inline_data and fn:
+ if not invert_green and fn:
srgb = "_srgb" if colorspace=='sRGB' else ""
tex_res.statements.append(Statement("external_image"+srgb, fn))
else:
tex_res.statements.append(Statement("storage", Token(fmt), image.size[0], image.size[1]))
+ pixels = tuple(image.pixels)
texdata = ""
if usage=='RGBA':
- for p in image.pixels:
- texdata += "\\x{:02X}".format(int(p*255))
+ texdata = encode_pixels(pixels_to_rgba(pixels))
elif usage=='GRAY':
- for i in range(0, len(image.pixels), 4):
- texdata += "\\x{:02X}".format(image.pixels[i])
+ texdata = encode_pixels(pixels_to_gray(pixels))
+ elif invert_green:
+ texdata = encode_pixels(pixels_to_rgb_invert_green(pixels))
else:
- for i in range(0, len(image.pixels), 4):
- for j in range(3):
- texdata += "\\x{:02X}".format(int(image.pixels[i+j]*255))
+ texdata = encode_pixels(pixels_to_rgb(pixels))
tex_res.statements.append(Statement("raw_data", texdata))
return tex_res