X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=blender%2Fio_mspgl%2Fexport_texture.py;h=2a736b84032e0df7dc76dd008718c9a24233316c;hb=d14b33347983d1d0cd608b29b5ee9b7a37d98c5b;hp=c3c58c3b19e9ae3affab9830e95a3eec02b42762;hpb=7dd9bd52860aff5372a2526cf689d3a19ea37fe0;p=libs%2Fgl.git

diff --git a/blender/io_mspgl/export_texture.py b/blender/io_mspgl/export_texture.py
index c3c58c3b..2a736b84 100644
--- a/blender/io_mspgl/export_texture.py
+++ b/blender/io_mspgl/export_texture.py
@@ -4,39 +4,75 @@ class TextureExporter:
 	def __init__(self):
 		self.inline_data = True
 
-	def export_texture(self, texture):
+	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 = Resource(image.name+".tex2d", "texture2d")
 
-		if texture.use_interpolation:
-			if texture.use_mipmap:
-				tex_res.statements.append(Statement("min_filter", Token('LINEAR_MIPMAP_LINEAR')))
-				tex_res.statements.append(Statement("generate_mipmap", True))
-			else:
-				tex_res.statements.append(Statement("min_filter", Token('LINEAR')))
-			tex_res.statements.append(Statement("max_anisotropy", texture.filter_eccentricity))
+		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")
+
+		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 texture.use_mipmap:
-				tex_res.statements.append(Statement("min_filter", Token('NEAREST_MIPMAP_NEAREST')))
-				tex_res.statements.append(Statement("generate_mipmap", True))
+			if usage=='RGBA':
+				fmt = 'SRGB8_ALPHA8' if colorspace=='sRGB' else 'RGBA8'
+			elif usage=='GRAY':
+				fmt = 'LUMINANCE8'
 			else:
-				tex_res.statements.append(Statement("min_filter", Token('NEAREST')))
+				fmt = 'SRGB8' if colorspace=='sRGB' else 'RGB8'
+
+			tex_res.statements.append(Statement("storage", Token(fmt), image.size[0], image.size[1]))
 
-		if not self.inline_data and texture.image.filepath:
-			tex_res.statements.append(Statement("external_image", os.path.basename(texture.image.filepath)))
-		else:
 			texdata = ""
-			colorspace = texture.image.colorspace_settings.name
-			if texture.use_alpha:
-				fmt = 'SRGB_ALPHA' if colorspace=='sRGB' else 'RGBA'
-				for p in texture.image.pixels:
+			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:
-				fmt = 'SRGB' if colorspace=='sRGB' else 'RGB'
-				for i in range(0, len(texture.image.pixels), 4):
+				for i in range(0, len(image.pixels), 4):
 					for j in range(3):
-						texdata += "\\x{:02X}".format(int(texture.image.pixels[i+j]*255))
-			tex_res.statements.append(Statement("storage", Token(fmt), texture.image.size[0], texture.image.size[1]))
+						texdata += "\\x{:02X}".format(int(image.pixels[i+j]*255))
 			tex_res.statements.append(Statement("raw_data", texdata))
 
 		return tex_res
+
+class SamplerExporter:
+	def export_sampler(self, tex_node):
+		from .datafile import Resource, Statement, Token
+		samp_res = Resource(self.get_sampler_name(tex_node), "sampler")
+
+		use_interpolation = tex_node.interpolation!='Closest'
+		if use_interpolation:
+			if tex_node.use_mipmap:
+				samp_res.statements.append(Statement("filter", Token('LINEAR_MIPMAP_LINEAR')))
+			else:
+				samp_res.statements.append(Statement("filter", Token('LINEAR')))
+			samp_res.statements.append(Statement("max_anisotropy", tex_node.max_anisotropy))
+		else:
+			if tex_node.use_mipmap:
+				samp_res.statements.append(Statement("filter", Token('NEAREST_MIPMAP_NEAREST')))
+			else:
+				samp_res.statements.append(Statement("filter", Token('NEAREST')))
+
+		return samp_res
+
+	def get_sampler_name(self, tex_node):
+		name_parts = []
+
+		use_interpolation = tex_node.interpolation!='Closest'
+		name_parts.append("linear" if use_interpolation else "nearest")
+		if tex_node.use_mipmap:
+			name_parts.append("mip")
+		if use_interpolation and tex_node.max_anisotropy>1:
+			name_parts.append("aniso{:g}x".format(tex_node.max_anisotropy))
+
+		return "_".join(name_parts)+".samp"