Cycles: Add XML parsing of MappingNodes to Cycles Standalone

Reviewers: dingto, sergey

Differential Revision: https://developer.blender.org/D2009

intern/cycles/app/cycles_xml.cpp

@@ -230,6 +230,24 @@ static bool xml_read_enum(ustring *str, ShaderEnum& enm, pugi::xml_node node, co
 	return false;
 }
 
+static bool xml_read_enum_value(int *value, ShaderEnum& enm, pugi::xml_node node, const char *name)
+{
+	pugi::xml_attribute attr = node.attribute(name);
+
+	if(attr) {
+		ustring ustr(attr.value());
+
+		if(enm.exists(ustr)) {
+			*value = enm[ustr];
+			return true;
+		}
+		else
+			fprintf(stderr, "Unknown value \"%s\" for attribute \"%s\".\n", ustr.c_str(), name);
+	}
+
+	return false;
+}
+
 static ShaderSocketType xml_read_socket_type(pugi::xml_node node, const char *name)
 {
 	pugi::xml_attribute attr = node.attribute(name);
@@ -529,7 +547,24 @@ static void xml_read_shader_graph(const XMLReadState& state, Shader *shader, pug
 			snode = bump;
 		}
 		else if(string_iequals(node.name(), "mapping")) {
-			snode = new MappingNode();
+			MappingNode *map = new MappingNode();
+
+			TextureMapping *texmap = &map->tex_mapping;
+			xml_read_enum_value((int*) &texmap->type, TextureMapping::type_enum, node, "type");
+			xml_read_enum_value((int*) &texmap->projection, TextureMapping::projection_enum, node, "projection");
+			xml_read_enum_value((int*) &texmap->x_mapping, TextureMapping::mapping_enum, node, "x_mapping");
+			xml_read_enum_value((int*) &texmap->y_mapping, TextureMapping::mapping_enum, node, "y_mapping");
+			xml_read_enum_value((int*) &texmap->z_mapping, TextureMapping::mapping_enum, node, "z_mapping");
+			xml_read_bool(&texmap->use_minmax, node, "use_minmax");
+			if(texmap->use_minmax) {
+				xml_read_float3(&texmap->min, node, "min");
+				xml_read_float3(&texmap->max, node, "max");
+			}
+			xml_read_float3(&texmap->translation, node, "translation");
+			xml_read_float3(&texmap->rotation, node, "rotation");
+			xml_read_float3(&texmap->scale, node, "scale");
+
+			snode = map;
 		}
 		else if(string_iequals(node.name(), "anisotropic_bsdf")) {
 			AnisotropicBsdfNode *aniso = new AnisotropicBsdfNode();

intern/cycles/render/nodes.cpp

@@ -30,6 +30,46 @@ CCL_NAMESPACE_BEGIN
 
 /* Texture Mapping */
 
+static ShaderEnum texture_mapping_type_init()
+{
+	ShaderEnum enm;
+
+	enm.insert("Point", TextureMapping::POINT);
+	enm.insert("Texture", TextureMapping::TEXTURE);
+	enm.insert("Vector", TextureMapping::VECTOR);
+	enm.insert("Normal", TextureMapping::NORMAL);
+
+	return enm;
+}
+
+static ShaderEnum texture_mapping_mapping_init()
+{
+	ShaderEnum enm;
+
+	enm.insert("None", TextureMapping::NONE);
+	enm.insert("X", TextureMapping::X);
+	enm.insert("Y", TextureMapping::Y);
+	enm.insert("Z", TextureMapping::Z);
+
+	return enm;
+}
+
+static ShaderEnum texture_mapping_projection_init()
+{
+	ShaderEnum enm;
+
+	enm.insert("Flat", TextureMapping::FLAT);
+	enm.insert("Cube", TextureMapping::CUBE);
+	enm.insert("Tube", TextureMapping::TUBE);
+	enm.insert("Sphere", TextureMapping::SPHERE);
+
+	return enm;
+}
+
+ShaderEnum TextureMapping::type_enum = texture_mapping_type_init();
+ShaderEnum TextureMapping::mapping_enum = texture_mapping_mapping_init();
+ShaderEnum TextureMapping::projection_enum = texture_mapping_projection_init();
+
 TextureMapping::TextureMapping()
 {
 	translation = make_float3(0.0f, 0.0f, 0.0f);

intern/cycles/render/nodes.h

@@ -49,12 +49,15 @@ public:
 
 	enum Type { POINT = 0, TEXTURE = 1, VECTOR = 2, NORMAL = 3 };
 	Type type;
+	static ShaderEnum type_enum;
 
 	enum Mapping { NONE = 0, X = 1, Y = 2, Z = 3 };
 	Mapping x_mapping, y_mapping, z_mapping;
+	static ShaderEnum mapping_enum;
 
 	enum Projection { FLAT, CUBE, TUBE, SPHERE };
 	Projection projection;
+	static ShaderEnum projection_enum;
 
 	bool equals(const TextureMapping& other) {
 		return translation == other.translation &&