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-/*
----------------------------------------------------------------------------
-Open Asset Import Library (assimp)
----------------------------------------------------------------------------
-
-Copyright (c) 2006-2016, 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.
----------------------------------------------------------------------------
-*/
-
-#ifndef ASSIMP_BUILD_NO_MMD_IMPORTER
-
-#include "MMDImporter.h"
-#include "MMDPmdParser.h"
-#include "MMDPmxParser.h"
-#include "MMDVmdParser.h"
-#include "ConvertToLHProcess.h"
-#include <assimp/DefaultIOSystem.h>
-#include <assimp/Importer.hpp>
-#include <assimp/ai_assert.h>
-#include <assimp/scene.h>
-#include <fstream>
-#include <iomanip>
-#include <memory>
-
-static const aiImporterDesc desc = {"MMD Importer",
- "",
- "",
- "surfaces supported?",
- aiImporterFlags_SupportTextFlavour,
- 0,
- 0,
- 0,
- 0,
- "pmx"};
-
-namespace Assimp {
-
-using namespace std;
-
-// ------------------------------------------------------------------------------------------------
-// Default constructor
-MMDImporter::MMDImporter()
- : m_Buffer(),
- // m_pRootObject( NULL ),
- m_strAbsPath("") {
- DefaultIOSystem io;
- m_strAbsPath = io.getOsSeparator();
-}
-
-// ------------------------------------------------------------------------------------------------
-// Destructor.
-MMDImporter::~MMDImporter() {
- // delete m_pRootObject;
- // m_pRootObject = NULL;
-}
-
-// ------------------------------------------------------------------------------------------------
-// Returns true, if file is an pmx file.
-bool MMDImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler,
- bool checkSig) const {
- if (!checkSig) // Check File Extension
- {
- return SimpleExtensionCheck(pFile, "pmx");
- } else // Check file Header
- {
- static const char *pTokens[] = {"PMX "};
- return BaseImporter::SearchFileHeaderForToken(pIOHandler, pFile, pTokens,
- 1);
- }
-}
-
-// ------------------------------------------------------------------------------------------------
-const aiImporterDesc *MMDImporter::GetInfo() const { return &desc; }
-
-// ------------------------------------------------------------------------------------------------
-// MMD import implementation
-void MMDImporter::InternReadFile(const std::string &file, aiScene *pScene,
- IOSystem * /*pIOHandler*/) {
- // Read file by istream
- std::filebuf fb;
- if (!fb.open(file, std::ios::in | std::ios::binary)) {
- throw DeadlyImportError("Failed to open file " + file + ".");
- }
-
- std::istream fileStream(&fb);
-
- // Get the file-size and validate it, throwing an exception when fails
- fileStream.seekg(0, fileStream.end);
- size_t fileSize = static_cast<size_t>(fileStream.tellg());
- fileStream.seekg(0, fileStream.beg);
-
- if (fileSize < sizeof(pmx::PmxModel)) {
- throw DeadlyImportError(file + " is too small.");
- }
-
- pmx::PmxModel model;
- model.Read(&fileStream);
-
- CreateDataFromImport(&model, pScene);
-}
-
-// ------------------------------------------------------------------------------------------------
-void MMDImporter::CreateDataFromImport(const pmx::PmxModel *pModel,
- aiScene *pScene) {
- if (pModel == NULL) {
- return;
- }
-
- aiNode *pNode = new aiNode;
- if (!pModel->model_name.empty()) {
- pNode->mName.Set(pModel->model_name);
- } else {
- ai_assert(false);
- }
-
- pScene->mRootNode = pNode;
-
- pNode = new aiNode;
- pScene->mRootNode->addChildren(1, &pNode);
- pNode->mName.Set(string(pModel->model_name) + string("_mesh"));
-
- // split mesh by materials
- pNode->mNumMeshes = pModel->material_count;
- pNode->mMeshes = new unsigned int[pNode->mNumMeshes];
- for (unsigned int index = 0; index < pNode->mNumMeshes; index++) {
- pNode->mMeshes[index] = index;
- }
-
- pScene->mNumMeshes = pModel->material_count;
- pScene->mMeshes = new aiMesh *[pScene->mNumMeshes];
- for (unsigned int i = 0, indexStart = 0; i < pScene->mNumMeshes; i++) {
- const int indexCount = pModel->materials[i].index_count;
-
- pScene->mMeshes[i] = CreateMesh(pModel, indexStart, indexCount);
- pScene->mMeshes[i]->mName = pModel->materials[i].material_name;
- pScene->mMeshes[i]->mMaterialIndex = i;
- indexStart += indexCount;
- }
-
- // create node hierarchy for bone position
- aiNode **ppNode = new aiNode *[pModel->bone_count];
- for (auto i = 0; i < pModel->bone_count; i++) {
- ppNode[i] = new aiNode(pModel->bones[i].bone_name);
- }
-
- for (auto i = 0; i < pModel->bone_count; i++) {
- const pmx::PmxBone &bone = pModel->bones[i];
-
- if (bone.parent_index < 0) {
- pScene->mRootNode->addChildren(1, ppNode + i);
- } else {
- ppNode[bone.parent_index]->addChildren(1, ppNode + i);
-
- aiVector3D v3 = aiVector3D(
- bone.position[0] - pModel->bones[bone.parent_index].position[0],
- bone.position[1] - pModel->bones[bone.parent_index].position[1],
- bone.position[2] - pModel->bones[bone.parent_index].position[2]);
- aiMatrix4x4::Translation(v3, ppNode[i]->mTransformation);
- }
- }
-
- // create materials
- pScene->mNumMaterials = pModel->material_count;
- pScene->mMaterials = new aiMaterial *[pScene->mNumMaterials];
- for (unsigned int i = 0; i < pScene->mNumMaterials; i++) {
- pScene->mMaterials[i] = CreateMaterial(&pModel->materials[i], pModel);
- }
-
- // Convert everything to OpenGL space
- MakeLeftHandedProcess convertProcess;
- convertProcess.Execute(pScene);
-
- FlipUVsProcess uvFlipper;
- uvFlipper.Execute(pScene);
-
- FlipWindingOrderProcess windingFlipper;
- windingFlipper.Execute(pScene);
-}
-
-// ------------------------------------------------------------------------------------------------
-aiMesh *MMDImporter::CreateMesh(const pmx::PmxModel *pModel,
- const int indexStart, const int indexCount) {
- aiMesh *pMesh = new aiMesh;
-
- pMesh->mNumVertices = indexCount;
-
- pMesh->mNumFaces = indexCount / 3;
- pMesh->mFaces = new aiFace[pMesh->mNumFaces];
-
- const int numIndices = 3; // trianglular face
- for (unsigned int index = 0; index < pMesh->mNumFaces; index++) {
- pMesh->mFaces[index].mNumIndices = numIndices;
- unsigned int *indices = new unsigned int[numIndices];
- indices[0] = numIndices * index;
- indices[1] = numIndices * index + 1;
- indices[2] = numIndices * index + 2;
- pMesh->mFaces[index].mIndices = indices;
- }
-
- pMesh->mVertices = new aiVector3D[pMesh->mNumVertices];
- pMesh->mNormals = new aiVector3D[pMesh->mNumVertices];
- pMesh->mTextureCoords[0] = new aiVector3D[pMesh->mNumVertices];
- pMesh->mNumUVComponents[0] = 2;
-
- // additional UVs
- for (int i = 1; i <= pModel->setting.uv; i++) {
- pMesh->mTextureCoords[i] = new aiVector3D[pMesh->mNumVertices];
- pMesh->mNumUVComponents[i] = 4;
- }
-
- map<int, vector<aiVertexWeight>> bone_vertex_map;
-
- // fill in contents and create bones
- for (int index = 0; index < indexCount; index++) {
- const pmx::PmxVertex *v =
- &pModel->vertices[pModel->indices[indexStart + index]];
- const float *position = v->position;
- pMesh->mVertices[index].Set(position[0], position[1], position[2]);
- const float *normal = v->normal;
-
- pMesh->mNormals[index].Set(normal[0], normal[1], normal[2]);
- pMesh->mTextureCoords[0][index].x = v->uv[0];
- pMesh->mTextureCoords[0][index].y = v->uv[1];
-
- for (int i = 1; i <= pModel->setting.uv; i++) {
- // TODO: wrong here? use quaternion transform?
- pMesh->mTextureCoords[i][index].x = v->uva[i][0];
- pMesh->mTextureCoords[i][index].y = v->uva[i][1];
- }
-
- // handle bone map
- const auto vsBDEF1_ptr =
- dynamic_cast<pmx::PmxVertexSkinningBDEF1 *>(v->skinning.get());
- const auto vsBDEF2_ptr =
- dynamic_cast<pmx::PmxVertexSkinningBDEF2 *>(v->skinning.get());
- const auto vsBDEF4_ptr =
- dynamic_cast<pmx::PmxVertexSkinningBDEF4 *>(v->skinning.get());
- const auto vsSDEF_ptr =
- dynamic_cast<pmx::PmxVertexSkinningSDEF *>(v->skinning.get());
- switch (v->skinning_type) {
- case pmx::PmxVertexSkinningType::BDEF1:
- bone_vertex_map[vsBDEF1_ptr->bone_index].push_back(
- aiVertexWeight(index, 1.0));
- break;
- case pmx::PmxVertexSkinningType::BDEF2:
- bone_vertex_map[vsBDEF2_ptr->bone_index1].push_back(
- aiVertexWeight(index, vsBDEF2_ptr->bone_weight));
- bone_vertex_map[vsBDEF2_ptr->bone_index2].push_back(
- aiVertexWeight(index, 1.0f - vsBDEF2_ptr->bone_weight));
- break;
- case pmx::PmxVertexSkinningType::BDEF4:
- bone_vertex_map[vsBDEF4_ptr->bone_index1].push_back(
- aiVertexWeight(index, vsBDEF4_ptr->bone_weight1));
- bone_vertex_map[vsBDEF4_ptr->bone_index2].push_back(
- aiVertexWeight(index, vsBDEF4_ptr->bone_weight2));
- bone_vertex_map[vsBDEF4_ptr->bone_index3].push_back(
- aiVertexWeight(index, vsBDEF4_ptr->bone_weight3));
- bone_vertex_map[vsBDEF4_ptr->bone_index4].push_back(
- aiVertexWeight(index, vsBDEF4_ptr->bone_weight4));
- break;
- case pmx::PmxVertexSkinningType::SDEF: // TODO: how to use sdef_c, sdef_r0,
- // sdef_r1?
- bone_vertex_map[vsSDEF_ptr->bone_index1].push_back(
- aiVertexWeight(index, vsSDEF_ptr->bone_weight));
- bone_vertex_map[vsSDEF_ptr->bone_index2].push_back(
- aiVertexWeight(index, 1.0f - vsSDEF_ptr->bone_weight));
- break;
- case pmx::PmxVertexSkinningType::QDEF:
- const auto vsQDEF_ptr =
- dynamic_cast<pmx::PmxVertexSkinningQDEF *>(v->skinning.get());
- bone_vertex_map[vsQDEF_ptr->bone_index1].push_back(
- aiVertexWeight(index, vsQDEF_ptr->bone_weight1));
- bone_vertex_map[vsQDEF_ptr->bone_index2].push_back(
- aiVertexWeight(index, vsQDEF_ptr->bone_weight2));
- bone_vertex_map[vsQDEF_ptr->bone_index3].push_back(
- aiVertexWeight(index, vsQDEF_ptr->bone_weight3));
- bone_vertex_map[vsQDEF_ptr->bone_index4].push_back(
- aiVertexWeight(index, vsQDEF_ptr->bone_weight4));
- break;
- }
- }
-
- // make all bones for each mesh
- // assign bone weights to skinned bones (otherwise just initialize)
- auto bone_ptr_ptr = new aiBone *[pModel->bone_count];
- pMesh->mNumBones = pModel->bone_count;
- pMesh->mBones = bone_ptr_ptr;
- for (auto ii = 0; ii < pModel->bone_count; ++ii) {
- auto pBone = new aiBone;
- const auto &pmxBone = pModel->bones[ii];
- pBone->mName = pmxBone.bone_name;
- aiVector3D pos(pmxBone.position[0], pmxBone.position[1], pmxBone.position[2]);
- aiMatrix4x4::Translation(-pos, pBone->mOffsetMatrix);
- auto it = bone_vertex_map.find(ii);
- if (it != bone_vertex_map.end()) {
- pBone->mNumWeights = static_cast<unsigned int>(it->second.size());
- pBone->mWeights = it->second.data();
- it->second.swap(*(new vector<aiVertexWeight>));
- }
- bone_ptr_ptr[ii] = pBone;
- }
-
- return pMesh;
-}
-
-// ------------------------------------------------------------------------------------------------
-aiMaterial *MMDImporter::CreateMaterial(const pmx::PmxMaterial *pMat,
- const pmx::PmxModel *pModel) {
- aiMaterial *mat = new aiMaterial();
- aiString name(pMat->material_english_name);
- mat->AddProperty(&name, AI_MATKEY_NAME);
-
- aiColor3D diffuse(pMat->diffuse[0], pMat->diffuse[1], pMat->diffuse[2]);
- mat->AddProperty(&diffuse, 1, AI_MATKEY_COLOR_DIFFUSE);
- aiColor3D specular(pMat->specular[0], pMat->specular[1], pMat->specular[2]);
- mat->AddProperty(&specular, 1, AI_MATKEY_COLOR_SPECULAR);
- aiColor3D ambient(pMat->ambient[0], pMat->ambient[1], pMat->ambient[2]);
- mat->AddProperty(&ambient, 1, AI_MATKEY_COLOR_AMBIENT);
-
- float opacity = pMat->diffuse[3];
- mat->AddProperty(&opacity, 1, AI_MATKEY_OPACITY);
- float shininess = pMat->specularlity;
- mat->AddProperty(&shininess, 1, AI_MATKEY_SHININESS_STRENGTH);
-
- aiString texture_path(pModel->textures[pMat->diffuse_texture_index]);
- mat->AddProperty(&texture_path, AI_MATKEY_TEXTURE(aiTextureType_DIFFUSE, 0));
- int mapping_uvwsrc = 0;
- mat->AddProperty(&mapping_uvwsrc, 1,
- AI_MATKEY_UVWSRC(aiTextureType_DIFFUSE, 0));
-
- return mat;
-}
-
-// ------------------------------------------------------------------------------------------------
-
-} // Namespace Assimp
-
-#endif // !! ASSIMP_BUILD_NO_MMD_IMPORTER
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