Adjust texture datafile statements in Blender exporter

[libs/gl.git] / blender / io_mspgl / export_texture.py

diff --git a/blender/io_mspgl/export_texture.py b/blender/io_mspgl/export_texture.py
index bb3eb28d243ae79a86503dc2bc1e9258adb3d184..3e78a4cd6ee33af497f4cde7d6a27f281490982c 100644 (file)
--- a/blender/io_mspgl/export_texture.py
+++ b/blender/io_mspgl/export_texture.py
@@ -1,13 +1,58 @@
+import os
+
 class TextureExporter:
-       def export_texture(self, texture):
+       def __init__(self):
+               self.inline_data = True
+
+       def export_texture(self, tex_node, usage='RGB'):
+               image = tex_node.image
                from .datafile import Resource, Statement, Token
-               tex_res = Resource(texture.name+".tex2d")
-
-               tex_res.statements.append(Statement("min_filter", Token("LINEAR")))
-               tex_res.statements.append(Statement("storage", Token("RGBA"), texture.image.size[0], texture.image.size[1]))
-               texdata = ""
-               for p in texture.image.pixels:
-                       texdata += "\\x%02X"%int(p*255)
-               tex_res.statements.append(Statement("raw_data", texdata))
+               tex_res = Resource(image.name+".tex2d", "texture2d")
+
+               use_interpolation = tex_node.interpolation!='Closest'
+               if use_interpolation:
+                       if tex_node.use_mipmap:
+                               tex_res.statements.append(Statement("filter", Token('LINEAR_MIPMAP_LINEAR')))
+                               tex_res.statements.append(Statement("generate_mipmap", True))
+                       else:
+                               tex_res.statements.append(Statement("filter", Token('LINEAR')))
+                       tex_res.statements.append(Statement("max_anisotropy", tex_node.max_anisotropy))
+               else:
+                       if tex_node.use_mipmap:
+                               tex_res.statements.append(Statement("filter", Token('NEAREST_MIPMAP_NEAREST')))
+                               tex_res.statements.append(Statement("generate_mipmap", True))
+                       else:
+                               tex_res.statements.append(Statement("filter", Token('NEAREST')))
+
+               colorspace = image.colorspace_settings.name
+               if usage=='GRAY' and colorspace=='sRGB':
+                               raise Exception("Grayscale textures with sRGB colorspace are not supported")
+
+               fn = os.path.basename(image.filepath)
+               if not self.inline_data and fn:
+                       srgb = "_srgb" if colorspace=='sRGB' else ""
+                       tex_res.statements.append(Statement("external_image"+srgb, fn))
+               else:
+                       if usage=='RGBA':
+                               fmt = 'SRGB8_ALPHA8' if colorspace=='sRGB' else 'RGBA8'
+                       elif usage=='GRAY':
+                               fmt = 'LUMINANCE8'
+                       else:
+                               fmt = 'SRGB8' if colorspace=='sRGB' else 'RGB8'
+
+                       tex_res.statements.append(Statement("storage", Token(fmt), image.size[0], image.size[1]))
+
+                       texdata = ""
+                       if usage=='RGBA':
+                               for p in image.pixels:
+                                       texdata += "\\x{:02X}".format(int(p*255))
+                       elif usage=='GRAY':
+                               for i in range(0, len(image.pixels), 4):
+                                       texdata += "\\x{:02X}".format(image.pixels[i])
+                       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))
+                       tex_res.statements.append(Statement("raw_data", texdata))
 
                return tex_res