switch to tinyobj and nanovg from assimp and cairo

1 files changed, 0 insertions, 319 deletions

diff --git a/libs/assimp/code/AssetLib/Assjson/mesh_splitter.cpp b/libs/assimp/code/AssetLib/Assjson/mesh_splitter.cpp
deleted file mode 100644
index 978437c..0000000
--- a/libs/assimp/code/AssetLib/Assjson/mesh_splitter.cpp
+++ /dev/null
@@ -1,319 +0,0 @@
-/*
-Assimp2Json
-Copyright (c) 2011, Alexander C. Gessler
-
-Licensed under a 3-clause BSD license. See the LICENSE file for more information.
-
-*/
-
-#include "mesh_splitter.h"
-
-#include <assimp/scene.h>
-
-// ----------------------------------------------------------------------------
-// Note: this is largely based on assimp's SplitLargeMeshes_Vertex process.
-// it is refactored and the coding style is slightly improved, though.
-// ----------------------------------------------------------------------------
-
-// ------------------------------------------------------------------------------------------------
-// Executes the post processing step on the given imported data.
-void MeshSplitter::Execute( aiScene* pScene) {
-	std::vector<std::pair<aiMesh*, unsigned int> > source_mesh_map;
-
-	for( unsigned int a = 0; a < pScene->mNumMeshes; a++) {
-		SplitMesh(a, pScene->mMeshes[a],source_mesh_map);
-	}
-
-	const unsigned int size = static_cast<unsigned int>(source_mesh_map.size());
-	if (size != pScene->mNumMeshes) {
-		// it seems something has been split. rebuild the mesh list
-		delete[] pScene->mMeshes;
-		pScene->mNumMeshes = size;
-		pScene->mMeshes = new aiMesh*[size]();
-
-		for (unsigned int i = 0; i < size;++i) {
-			pScene->mMeshes[i] = source_mesh_map[i].first;
-		}
-
-		// now we need to update all nodes
-		UpdateNode(pScene->mRootNode,source_mesh_map);
-	}
-}
-
-
-// ------------------------------------------------------------------------------------------------
-void MeshSplitter::UpdateNode(aiNode* pcNode, const std::vector<std::pair<aiMesh*, unsigned int> >& source_mesh_map) {
-	// TODO: should better use std::(multi)set for source_mesh_map.
-
-	// for every index in out list build a new entry
-	std::vector<unsigned int> aiEntries;
-	aiEntries.reserve(pcNode->mNumMeshes + 1);
-	for (unsigned int i = 0; i < pcNode->mNumMeshes;++i)	{
-		for (unsigned int a = 0, end = static_cast<unsigned int>(source_mesh_map.size()); a < end;++a)	{
-			if (source_mesh_map[a].second == pcNode->mMeshes[i])	{
-				aiEntries.push_back(a);
-			}
-		}
-	}
-
-	// now build the new list
-	delete pcNode->mMeshes;
-	pcNode->mNumMeshes = static_cast<unsigned int>(aiEntries.size());
-	pcNode->mMeshes = new unsigned int[pcNode->mNumMeshes];
-
-	for (unsigned int b = 0; b < pcNode->mNumMeshes;++b) {
-		pcNode->mMeshes[b] = aiEntries[b];
-	}
-
-	// recursively update children
-	for (unsigned int i = 0, end = pcNode->mNumChildren; i < end;++i)	{
-		UpdateNode ( pcNode->mChildren[i], source_mesh_map );
-	}
-}
-
-static const unsigned int WAS_NOT_COPIED = 0xffffffff;
-
-using PerVertexWeight = std::pair <unsigned int,float>;
-using VertexWeightTable = std::vector	<PerVertexWeight>;
-
-// ------------------------------------------------------------------------------------------------
-VertexWeightTable* ComputeVertexBoneWeightTable(const aiMesh* pMesh) {
-	if (!pMesh || !pMesh->mNumVertices || !pMesh->mNumBones) {
-		return nullptr;
-	}
-
-	VertexWeightTable* const avPerVertexWeights = new VertexWeightTable[pMesh->mNumVertices];
-	for (unsigned int i = 0; i < pMesh->mNumBones;++i)	{
-
-		aiBone* bone = pMesh->mBones[i];
-		for (unsigned int a = 0; a < bone->mNumWeights;++a)	{
-			const aiVertexWeight& weight = bone->mWeights[a];
-			avPerVertexWeights[weight.mVertexId].emplace_back(i,weight.mWeight);
-		}
-	}
-	return avPerVertexWeights;
-}
-
-// ------------------------------------------------------------------------------------------------
-void MeshSplitter :: SplitMesh(unsigned int a, aiMesh* in_mesh, std::vector<std::pair<aiMesh*, unsigned int> >& source_mesh_map) {
-	// TODO: should better use std::(multi)set for source_mesh_map.
-
-	if (in_mesh->mNumVertices <= LIMIT)	{
-		source_mesh_map.emplace_back(in_mesh,a);
-		return;
-	}
-
-	// build a per-vertex weight list if necessary
-	VertexWeightTable* avPerVertexWeights = ComputeVertexBoneWeightTable(in_mesh);
-
-	// we need to split this mesh into sub meshes. Estimate submesh size
-	const unsigned int sub_meshes = (in_mesh->mNumVertices / LIMIT) + 1;
-
-	// create a std::vector<unsigned int> to remember which vertices have already
-	// been copied and to which position (i.e. output index)
-	std::vector<unsigned int> was_copied_to;
-	was_copied_to.resize(in_mesh->mNumVertices,WAS_NOT_COPIED);
-
-	// Try to find a good estimate for the number of output faces
-	// per mesh. Add 12.5% as buffer
-	unsigned int size_estimated = in_mesh->mNumFaces / sub_meshes;
-	size_estimated += size_estimated / 8;
-
-	// now generate all submeshes
-	unsigned int base = 0;
-	while (true) {
-		const unsigned int out_vertex_index = LIMIT;
-
-		aiMesh* out_mesh = new aiMesh();
-		out_mesh->mNumVertices = 0;
-		out_mesh->mMaterialIndex = in_mesh->mMaterialIndex;
-
-		// the name carries the adjacency information between the meshes
-		out_mesh->mName = in_mesh->mName;
-
-		typedef std::vector<aiVertexWeight> BoneWeightList;
-		if (in_mesh->HasBones())	{
-			out_mesh->mBones = new aiBone*[in_mesh->mNumBones]();
-		}
-
-		// clear the temporary helper array
-		if (base)	{
-			std::fill(was_copied_to.begin(), was_copied_to.end(), WAS_NOT_COPIED);
-		}
-
-		std::vector<aiFace> vFaces;
-
-		// reserve enough storage for most cases
-		if (in_mesh->HasPositions()) {
-			out_mesh->mVertices = new aiVector3D[out_vertex_index];
-		}
-
-		if (in_mesh->HasNormals()) {
-			out_mesh->mNormals = new aiVector3D[out_vertex_index];
-		}
-
-		if (in_mesh->HasTangentsAndBitangents())	{
-			out_mesh->mTangents = new aiVector3D[out_vertex_index];
-			out_mesh->mBitangents = new aiVector3D[out_vertex_index];
-		}
-
-		for (unsigned int c = 0; in_mesh->HasVertexColors(c);++c)	{
-			out_mesh->mColors[c] = new aiColor4D[out_vertex_index];
-		}
-
-		for (unsigned int c = 0; in_mesh->HasTextureCoords(c);++c)	{
-			out_mesh->mNumUVComponents[c] = in_mesh->mNumUVComponents[c];
-			out_mesh->mTextureCoords[c] = new aiVector3D[out_vertex_index];
-		}
-		vFaces.reserve(size_estimated);
-
-		// (we will also need to copy the array of indices)
-		while (base < in_mesh->mNumFaces) {
-			const unsigned int iNumIndices = in_mesh->mFaces[base].mNumIndices;
-
-			// doesn't catch degenerates but is quite fast
-			unsigned int iNeed = 0;
-			for (unsigned int v = 0; v < iNumIndices;++v)	{
-				unsigned int index = in_mesh->mFaces[base].mIndices[v];
-
-				// check whether we do already have this vertex
-				if (WAS_NOT_COPIED == was_copied_to[index])	{
-					iNeed++;
-				}
-			}
-			if (out_mesh->mNumVertices + iNeed > out_vertex_index)	{
-				// don't use this face
-				break;
-			}
-
-			vFaces.emplace_back();
-			aiFace& rFace = vFaces.back();
-
-			// setup face type and number of indices
-			rFace.mNumIndices = iNumIndices;
-			rFace.mIndices = new unsigned int[iNumIndices];
-
-			// need to update the output primitive types
-			switch (rFace.mNumIndices)
-			{
-			case 1:
-				out_mesh->mPrimitiveTypes |= aiPrimitiveType_POINT;
-				break;
-			case 2:
-				out_mesh->mPrimitiveTypes |= aiPrimitiveType_LINE;
-				break;
-			case 3:
-				out_mesh->mPrimitiveTypes |= aiPrimitiveType_TRIANGLE;
-				break;
-			default:
-				out_mesh->mPrimitiveTypes |= aiPrimitiveType_POLYGON;
-			}
-
-			// and copy the contents of the old array, offset them by current base
-			for (unsigned int v = 0; v < iNumIndices;++v) {
-				const unsigned int index = in_mesh->mFaces[base].mIndices[v];
-
-				// check whether we do already have this vertex
-				if (WAS_NOT_COPIED != was_copied_to[index]) {
-					rFace.mIndices[v] = was_copied_to[index];
-					continue;
-				}
-
-				// copy positions
-				out_mesh->mVertices[out_mesh->mNumVertices] = (in_mesh->mVertices[index]);
-
-				// copy normals
-				if (in_mesh->HasNormals()) {
-					out_mesh->mNormals[out_mesh->mNumVertices] = (in_mesh->mNormals[index]);
-				}
-
-				// copy tangents/bi-tangents
-				if (in_mesh->HasTangentsAndBitangents()) {
-					out_mesh->mTangents[out_mesh->mNumVertices] = (in_mesh->mTangents[index]);
-					out_mesh->mBitangents[out_mesh->mNumVertices] = (in_mesh->mBitangents[index]);
-				}
-
-				// texture coordinates
-				for (unsigned int c = 0;  c < AI_MAX_NUMBER_OF_TEXTURECOORDS;++c) {
-					if (in_mesh->HasTextureCoords( c)) {
-						out_mesh->mTextureCoords[c][out_mesh->mNumVertices] = in_mesh->mTextureCoords[c][index];
-					}
-				}
-				// vertex colors
-				for (unsigned int c = 0;  c < AI_MAX_NUMBER_OF_COLOR_SETS;++c) {
-					if (in_mesh->HasVertexColors( c)) {
-						out_mesh->mColors[c][out_mesh->mNumVertices] = in_mesh->mColors[c][index];
-					}
-				}
-				// check whether we have bone weights assigned to this vertex
-				rFace.mIndices[v] = out_mesh->mNumVertices;
-				if (avPerVertexWeights) {
-					VertexWeightTable& table = avPerVertexWeights[ out_mesh->mNumVertices ];
-					for (VertexWeightTable::const_iterator iter = table.begin(), end = table.end(); iter != end;++iter) {
-						// allocate the bone weight array if necessary and store it in the mBones field (HACK!)
-						BoneWeightList* weight_list = reinterpret_cast<BoneWeightList*>(out_mesh->mBones[(*iter).first]);
-						if (!weight_list) {
-							weight_list = new BoneWeightList();
-							out_mesh->mBones[(*iter).first] = reinterpret_cast<aiBone*>(weight_list);
-						}
-						weight_list->push_back(aiVertexWeight(out_mesh->mNumVertices,(*iter).second));
-					}
-				}
-
-				was_copied_to[index] = out_mesh->mNumVertices;
-				out_mesh->mNumVertices++;
-			}
-			base++;
-			if(out_mesh->mNumVertices == out_vertex_index) {
-				// break here. The face is only added if it was complete
-				break;
-			}
-		}
-
-		// check which bones we'll need to create for this submesh
-		if (in_mesh->HasBones()) {
-			aiBone** ppCurrent = out_mesh->mBones;
-			for (unsigned int k = 0; k < in_mesh->mNumBones;++k) {
-				// check whether the bone exists
-				BoneWeightList* const weight_list = reinterpret_cast<BoneWeightList*>(out_mesh->mBones[k]);
-
-				if (weight_list) {
-					const aiBone* const bone_in = in_mesh->mBones[k];
-					aiBone* const bone_out = new aiBone();
-					*ppCurrent++ = bone_out;
-					bone_out->mName = aiString(bone_in->mName);
-					bone_out->mOffsetMatrix =bone_in->mOffsetMatrix;
-					bone_out->mNumWeights = (unsigned int)weight_list->size();
-					bone_out->mWeights = new aiVertexWeight[bone_out->mNumWeights];
-
-					// copy the vertex weights
-					::memcpy(bone_out->mWeights, &(*weight_list)[0],bone_out->mNumWeights * sizeof(aiVertexWeight));
-
-					delete weight_list;
-					out_mesh->mNumBones++;
-				}
-			}
-		}
-
-		// copy the face list to the mesh
-		out_mesh->mFaces = new aiFace[vFaces.size()];
-		out_mesh->mNumFaces = (unsigned int)vFaces.size();
-
-		for (unsigned int p = 0; p < out_mesh->mNumFaces;++p) {
-			out_mesh->mFaces[p] = vFaces[p];
-		}
-
-		// add the newly created mesh to the list
-		source_mesh_map.push_back(std::make_pair(out_mesh,a));
-
-		if (base == in_mesh->mNumFaces) {
-			break;
-		}
-	}
-
-	// delete the per-vertex weight list again
-	delete[] avPerVertexWeights;
-
-	// now delete the old mesh data
-	delete in_mesh;
-}