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// Copyright (c) 2012, Motorola Mobility, Inc.
// All rights reserved.
//
// Redistribution and use 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 Motorola Mobility, Inc. nor the names of its
// contributors may be used to endorse or promote products derived from this
// software without specific prior written permission.
//
// 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 <COPYRIGHT HOLDER> 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.
#include "GLTF.h"
#include "../helpers/geometryHelpers.h"
using namespace rapidjson;
#if __cplusplus <= 199711L
using namespace std::tr1;
#endif
using namespace std;
namespace GLTF
{
GLTFMesh::GLTFMesh() : JSONObject() , _subMeshes(nullptr) {
this->_subMeshes = nullptr;
this->_remapTableForPositions = nullptr;
this->_ID = GLTFUtils::generateIDForType("mesh");
}
GLTFMesh::~GLTFMesh() {
if (this->_remapTableForPositions)
free(this->_remapTableForPositions);
}
//copy that retains elements
GLTFMesh::GLTFMesh(const GLTFMesh &mesh) : JSONObject(), _subMeshes(nullptr) {
this->_remapTableForPositions = nullptr;
GLTFMesh *meshPtr = const_cast <GLTFMesh*>(&mesh);
this->setPrimitives(meshPtr->getPrimitives());
this->_semanticToMeshAttributes = mesh._semanticToMeshAttributes;
this->_ID = mesh._ID;
this->setName(meshPtr->getName());
}
shared_ptr<GLTFMesh> GLTFMesh::clone() {
shared_ptr<GLTFMesh> clonedMesh(new GLTFMesh());
clonedMesh->setID(this->getID());
clonedMesh->setName(this->getName());
clonedMesh->_semanticToMeshAttributes = this->_semanticToMeshAttributes;
JSONValueVectorRef primitives = this->getPrimitives()->values();
for (size_t i = 0 ; i < primitives.size() ; i++) {
shared_ptr <GLTFPrimitive> primitive = static_pointer_cast<GLTFPrimitive>(primitives[i]);
clonedMesh->appendPrimitive(primitive->clone());
}
return clonedMesh;
}
shared_ptr <MeshAttributeVector> GLTFMesh::meshAttributes() {
shared_ptr <MeshAttributeVector> meshAttributes(new MeshAttributeVector());
vector <GLTF::Semantic> allSemantics = this->allSemantics();
std::map<string, unsigned int> semanticAndSetToIndex;
for (unsigned int i = 0 ; i < allSemantics.size() ; i++) {
GLTF::Semantic semantic = allSemantics[i];
size_t attributesCount = this->getMeshAttributesCountForSemantic(semantic);
for (size_t j = 0 ; j < attributesCount ; j++) {
shared_ptr <GLTF::GLTFAccessor> selectedMeshAttribute = this->getMeshAttribute(semantic, j);
unsigned int indexSet = j;
std::string semanticIndexSetKey = keyWithSemanticAndSet(semantic, indexSet);
unsigned int size = (unsigned int)meshAttributes->size();
semanticAndSetToIndex[semanticIndexSetKey] = size;
meshAttributes->push_back(selectedMeshAttribute);
}
}
return meshAttributes;
}
bool GLTFMesh::appendPrimitive(shared_ptr <GLTF::GLTFPrimitive> primitive) {
shared_ptr<JSONArray> primitives = this->createArrayIfNeeded(kPrimitives);
primitives->appendValue(primitive);
return true;
}
bool GLTFMesh::hasSemantic(Semantic semantic) {
return this->_semanticToMeshAttributes.count(semantic) > 0;
}
size_t GLTFMesh::getMeshAttributesCountForSemantic(Semantic semantic) {
return this->_semanticToMeshAttributes[semantic].size();
}
shared_ptr<GLTFAccessor> GLTFMesh::getMeshAttribute(Semantic semantic, size_t indexOfSet) {
IndexSetToMeshAttributeHashmap& hasmap = this->_semanticToMeshAttributes[semantic];
return hasmap[(unsigned int)indexOfSet];
}
void GLTFMesh::setMeshAttribute(Semantic semantic, size_t indexOfSet, shared_ptr<GLTFAccessor> meshAttribute) {
IndexSetToMeshAttributeHashmap& hasmap = this->_semanticToMeshAttributes[semantic];
hasmap[(unsigned int)indexOfSet] = meshAttribute;
}
vector <GLTF::Semantic> GLTFMesh::allSemantics() {
vector <GLTF::Semantic> allSemantics;
SemanticToMeshAttributeHashmap::const_iterator meshAttributeIterator;
//FIXME: consider turn this search into a method for mesh
for (meshAttributeIterator = this->_semanticToMeshAttributes.begin() ; meshAttributeIterator != this->_semanticToMeshAttributes.end() ; meshAttributeIterator++) {
//(*it).first; // the key value (of type Key)
//(*it).second; // the mapped value (of type T)
allSemantics.push_back((*meshAttributeIterator).first);
}
return allSemantics;
}
std::string GLTFMesh::getID() {
return _ID;
}
void GLTFMesh::setID(std::string ID) {
this->_ID = ID;
}
std::string GLTFMesh::getName() {
return this->getString(kName);
}
void GLTFMesh::setName(std::string name) {
this->setString(kName, name);
}
size_t GLTFMesh::getPrimitivesCount() {
size_t count = 0;
shared_ptr<JSONArray> primitives = this->getPrimitives();
if (primitives) {
JSONValueVectorRef values = primitives->values();
count = values.size();
}
return count;
}
shared_ptr<JSONArray> GLTFMesh::getPrimitives() {
return this->getArray(kPrimitives);
}
void GLTFMesh::setPrimitives(shared_ptr<JSONArray> primitives) {
this->setValue(kPrimitives, primitives);
}
shared_ptr<JSONObject> GLTFMesh::getExtensions() {
return this->createObjectIfNeeded(kExtensions);
}
void GLTFMesh::setRemapTableForPositions(unsigned int* remapTableForPositions) {
this->_remapTableForPositions = remapTableForPositions;
}
unsigned int* GLTFMesh::getRemapTableForPositions() {
return this->_remapTableForPositions;
}
void GLTFMesh::resolveAttributes() {
shared_ptr <GLTF::JSONArray> primitivesArray(new GLTF::JSONArray());
JSONValueVector primitives = this->getPrimitives()->values();
unsigned int primitivesCount = (unsigned int)primitives.size();
for (unsigned int i = 0 ; i < primitivesCount ; i++) {
shared_ptr<GLTF::GLTFPrimitive> primitive = static_pointer_cast<GLTFPrimitive>(primitives[i]);
shared_ptr <GLTF::JSONObject> attributes(new GLTF::JSONObject());
primitive->setValue(kAttributes, attributes);
size_t count = primitive->getVertexAttributesCount();
for (size_t j = 0 ; j < count ; j++) {
GLTF::Semantic semantic = primitive->getSemanticAtIndex((unsigned int)j);
std::string semanticAndSet = GLTFUtils::getStringForSemantic(semantic);
unsigned int indexOfSet = 0;
if ((semantic == GLTF::TEXCOORD) || (semantic == GLTF::COLOR)) {
indexOfSet = primitive->getIndexOfSetAtIndex((unsigned int)j);
semanticAndSet += "_" + GLTFUtils::toString(indexOfSet);
}
attributes->setString(semanticAndSet, this->getMeshAttribute(semantic, indexOfSet)->getID());
}
primitivesArray->appendValue(primitive);
}
}
std::string GLTFMesh::valueType() {
return "mesh";
}
}
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