add assimp submodule

1 files changed, 327 insertions, 0 deletions

diff --git a/src/mesh/assimp-master/code/AssetLib/AMF/AMFImporter_Material.cpp b/src/mesh/assimp-master/code/AssetLib/AMF/AMFImporter_Material.cpp
new file mode 100644
index 0000000..676e748
--- /dev/null
+++ b/src/mesh/assimp-master/code/AssetLib/AMF/AMFImporter_Material.cpp
@@ -0,0 +1,327 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/// \file AMFImporter_Material.cpp
+/// \brief Parsing data from material nodes.
+/// \date 2016
+/// \author smal.root@gmail.com
+
+#ifndef ASSIMP_BUILD_NO_AMF_IMPORTER
+
+#include "AMFImporter.hpp"
+
+namespace Assimp {
+
+// <color
+// profile="" - The ICC color space used to interpret the three color channels <r>, <g> and <b>.
+// >
+// </color>
+// A color definition.
+// Multi elements - No.
+// Parent element - <material>, <object>, <volume>, <vertex>, <triangle>.
+//
+// "profile" can be one of "sRGB", "AdobeRGB", "Wide-Gamut-RGB", "CIERGB", "CIELAB", or "CIEXYZ".
+// Children elements:
+//   <r>, <g>, <b>, <a>
+//   Multi elements - No.
+//   Red, Greed, Blue and Alpha (transparency) component of a color in sRGB space, values ranging from 0 to 1. The
+//   values can be specified as constants, or as a formula depending on the coordinates.
+void AMFImporter::ParseNode_Color(XmlNode &node) {
+    if (node.empty()) {
+        return;
+    }
+
+    const std::string &profile = node.attribute("profile").as_string();
+    bool read_flag[4] = { false, false, false, false };
+    AMFNodeElementBase *ne = new AMFColor(mNodeElement_Cur);
+    AMFColor &als = *((AMFColor *)ne); // alias for convenience
+    ParseHelper_Node_Enter(ne);
+    for (pugi::xml_node &child : node.children()) {
+        // create new color object.
+        als.Profile = profile;
+
+        const std::string &name = child.name();
+        if ( name == "r") {
+			read_flag[0] = true;
+            XmlParser::getValueAsFloat(child, als.Color.r);
+        } else if (name == "g") {
+			read_flag[1] = true;
+            XmlParser::getValueAsFloat(child, als.Color.g);
+        } else if (name == "b") {
+			read_flag[2] = true;
+            XmlParser::getValueAsFloat(child, als.Color.b);
+        } else if (name == "a") {
+			read_flag[3] = true;
+            XmlParser::getValueAsFloat(child, als.Color.a);
+        }
+        // check if <a> is absent. Then manually add "a == 1".
+        if (!read_flag[3]) {
+            als.Color.a = 1;
+        }
+    }
+    als.Composed = false;
+    mNodeElement_List.push_back(ne); // and to node element list because its a new object in graph.
+    ParseHelper_Node_Exit();
+    // check that all components was defined
+	if (!(read_flag[0] && read_flag[1] && read_flag[2])) {
+		throw DeadlyImportError("Not all color components are defined.");
+	}
+}
+
+// <material
+// id="" - A unique material id. material ID "0" is reserved to denote no material (void) or sacrificial material.
+// >
+// </material>
+// An available material.
+// Multi elements - Yes.
+// Parent element - <amf>.
+void AMFImporter::ParseNode_Material(XmlNode &node) {
+    // create new object and assign read data
+	std::string id = node.attribute("id").as_string();
+	AMFNodeElementBase *ne = new AMFMaterial(mNodeElement_Cur);
+	((AMFMaterial*)ne)->ID = id;
+
+    // Check for child nodes
+	if (!node.empty()) {
+        ParseHelper_Node_Enter(ne);
+        for (pugi::xml_node &child : node.children()) {
+            const std::string name = child.name();
+            if (name == "color") {
+				ParseNode_Color(child);
+            } else if (name == "metadata") {
+				ParseNode_Metadata(child);
+			}
+		}
+        ParseHelper_Node_Exit();
+	} else {
+		mNodeElement_Cur->Child.push_back(ne);// Add element to child list of current element
+	}
+
+	mNodeElement_List.push_back(ne);// and to node element list because its a new object in graph.
+}
+
+// <texture
+// id=""     - Assigns a unique texture id for the new texture.
+// width=""  - Width (horizontal size, x) of the texture, in pixels.
+// height="" - Height (lateral size, y) of the texture, in pixels.
+// depth=""  - Depth (vertical size, z) of the texture, in pixels.
+// type=""   - Encoding of the data in the texture. Currently allowed values are "grayscale" only. In grayscale mode, each pixel is represented by one byte
+//   in the range of 0-255. When the texture is referenced using the tex function, these values are converted into a single floating point number in the
+//   range of 0-1 (see Annex 2). A full color graphics will typically require three textures, one for each of the color channels. A graphic involving
+//   transparency may require a fourth channel.
+// tiled=""  - If true then texture repeated when UV-coordinates is greater than 1.
+// >
+// </triangle>
+// Specifies an texture data to be used as a map. Lists a sequence of Base64 values specifying values for pixels from left to right then top to bottom,
+// then layer by layer.
+// Multi elements - Yes.
+// Parent element - <amf>.
+void AMFImporter::ParseNode_Texture(XmlNode &node) {
+    const std::string id = node.attribute("id").as_string();
+	const uint32_t width = node.attribute("width").as_uint();
+    const uint32_t height = node.attribute("height").as_uint();
+    uint32_t depth = node.attribute("depth").as_uint();
+    const std::string type = node.attribute("type").as_string();
+	bool tiled = node.attribute("tiled").as_bool();
+
+    if (node.empty()) {
+		return;
+    }
+
+    // create new texture object.
+    AMFNodeElementBase *ne = new AMFTexture(mNodeElement_Cur);
+
+	AMFTexture& als = *((AMFTexture*)ne);// alias for convenience
+
+    std::string enc64_data;
+    XmlParser::getValueAsString(node, enc64_data);
+    // Check for child nodes
+
+	// check that all components was defined
+    if (id.empty()) {
+		throw DeadlyImportError("ID for texture must be defined.");
+    }
+    if (width < 1) {
+		throw DeadlyImportError("Invalid width for texture.");
+    }
+    if (height < 1) {
+		throw DeadlyImportError("Invalid height for texture.");
+	}
+    if (type != "grayscale") {
+		throw DeadlyImportError("Invalid type for texture.");
+    }
+    if (enc64_data.empty()) {
+        throw DeadlyImportError("Texture data not defined.");
+    }
+	// copy data
+	als.ID = id;
+	als.Width = width;
+	als.Height = height;
+	als.Depth = depth;
+	als.Tiled = tiled;
+	ParseHelper_Decode_Base64(enc64_data, als.Data);
+    if (depth == 0) {
+        depth = (uint32_t)(als.Data.size() / (width * height));
+    }
+    // check data size
+    if ((width * height * depth) != als.Data.size()) {
+        throw DeadlyImportError("Texture has incorrect data size.");
+    }
+
+	mNodeElement_Cur->Child.push_back(ne);// Add element to child list of current element
+	mNodeElement_List.push_back(ne);// and to node element list because its a new object in graph.
+}
+
+// <texmap
+// rtexid="" - Texture ID for red color component.
+// gtexid="" - Texture ID for green color component.
+// btexid="" - Texture ID for blue color component.
+// atexid="" - Texture ID for alpha color component. Optional.
+// >
+// </texmap>, old name: <map>
+// Specifies texture coordinates for triangle.
+// Multi elements - No.
+// Parent element - <triangle>.
+// Children elements:
+//   <utex1>, <utex2>, <utex3>, <vtex1>, <vtex2>, <vtex3>. Old name: <u1>, <u2>, <u3>, <v1>, <v2>, <v3>.
+//   Multi elements - No.
+//   Texture coordinates for every vertex of triangle.
+void AMFImporter::ParseNode_TexMap(XmlNode &node, const bool pUseOldName) {
+	// Read attributes for node <color>.
+    AMFNodeElementBase *ne = new AMFTexMap(mNodeElement_Cur);
+    AMFTexMap &als = *((AMFTexMap *)ne); //
+    std::string rtexid, gtexid, btexid, atexid;
+    if (!node.empty()) {
+        for (pugi::xml_attribute &attr : node.attributes()) {
+            const std::string &currentAttr = attr.name();
+            if (currentAttr == "rtexid") {
+                rtexid = attr.as_string();
+            } else if (currentAttr == "gtexid") {
+                gtexid = attr.as_string();
+            } else if (currentAttr == "btexid") {
+                btexid = attr.as_string();
+            } else if (currentAttr == "atexid") {
+                atexid = attr.as_string();
+            }
+        }
+    }
+
+	// create new texture coordinates object, alias for convenience
+	// check data
+	if (rtexid.empty() && gtexid.empty() && btexid.empty()) {
+		throw DeadlyImportError("ParseNode_TexMap. At least one texture ID must be defined.");
+	}
+
+	// Check for children nodes
+	if (node.children().begin() == node.children().end()) {
+		throw DeadlyImportError("Invalid children definition.");
+	}
+	// read children nodes
+	bool read_flag[6] = { false, false, false, false, false, false };
+
+	if (!pUseOldName) {
+        ParseHelper_Node_Enter(ne);
+        for ( XmlNode &currentNode : node.children()) {
+            const std::string &name = currentNode.name();
+            if (name == "utex1") {
+				read_flag[0] = true;
+                XmlParser::getValueAsFloat(node, als.TextureCoordinate[0].x);
+            } else if (name == "utex2") {
+				read_flag[1] = true;
+                XmlParser::getValueAsFloat(node, als.TextureCoordinate[1].x);
+            } else if (name == "utex3") {
+				read_flag[2] = true;
+                XmlParser::getValueAsFloat(node, als.TextureCoordinate[2].x);
+            } else if (name == "vtex1") {
+				read_flag[3] = true;
+                XmlParser::getValueAsFloat(node, als.TextureCoordinate[0].y);
+            } else if (name == "vtex2") {
+				read_flag[4] = true;
+                XmlParser::getValueAsFloat(node, als.TextureCoordinate[1].y);
+            } else if (name == "vtex3") {
+				read_flag[5] = true;
+                XmlParser::getValueAsFloat(node, als.TextureCoordinate[2].y);
+			}
+		}
+        ParseHelper_Node_Exit();
+
+	} else {
+		for (pugi::xml_attribute &attr : node.attributes()) {
+            const std::string name = attr.name();
+            if (name == "u") {
+				read_flag[0] = true;
+				als.TextureCoordinate[0].x = attr.as_float();
+            } else if (name == "u2") {
+				read_flag[1] = true;
+				als.TextureCoordinate[1].x = attr.as_float();
+            } else if (name == "u3") {
+				read_flag[2] = true;
+				als.TextureCoordinate[2].x = attr.as_float();
+            } else if (name == "v1") {
+				read_flag[3] = true;
+				als.TextureCoordinate[0].y = attr.as_float();
+            } else if (name == "v2") {
+				read_flag[4] = true;
+				als.TextureCoordinate[1].y = attr.as_float();
+            } else if (name == "v3") {
+				read_flag[5] = true;
+				als.TextureCoordinate[0].y = attr.as_float();
+			}
+		}
+	}
+
+	// check that all components was defined
+	if (!(read_flag[0] && read_flag[1] && read_flag[2] && read_flag[3] && read_flag[4] && read_flag[5])) {
+		throw DeadlyImportError("Not all texture coordinates are defined.");
+	}
+
+	// copy attributes data
+	als.TextureID_R = rtexid;
+	als.TextureID_G = gtexid;
+	als.TextureID_B = btexid;
+	als.TextureID_A = atexid;
+
+	mNodeElement_List.push_back(ne);
+}
+
+}// namespace Assimp
+
+#endif // !ASSIMP_BUILD_NO_AMF_IMPORTER