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OpenSceneGraph/src/osgPlugins/osgjs/WriteVisitor.cpp

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#include "WriteVisitor"
#include <osgDB/WriteFile>
#include <osgDB/FileUtils>
#include <osgDB/ReadFile>
#include <osgDB/FileNameUtils>
#include <osg/UserDataContainer>
#include <osg/TextureRectangle>
#include <osg/Texture2D>
#include <osg/Texture1D>
#include <osg/Material>
#include <osg/BlendFunc>
#include <osgSim/ShapeAttribute>
#include "Base64"
osg::Array* getTangentSpaceArray(osg::Geometry& geometry) {
for(unsigned int i = 0 ; i < geometry.getNumVertexAttribArrays() ; ++ i) {
osg::Array* attribute = geometry.getVertexAttribArray(i);
bool isTangentArray = false;
if(attribute && attribute->getUserValue("tangent", isTangentArray) && isTangentArray) {
return attribute;
}
}
return 0;
}
void translateObject(JSONObject* json, osg::Object* osg)
{
if (!osg->getName().empty()) {
json->getMaps()["Name"] = new JSONValue<std::string>(osg->getName());
}
osgSim::ShapeAttributeList* osgSim_userdata = dynamic_cast<osgSim::ShapeAttributeList* >(osg->getUserData());
if (osgSim_userdata) {
JSONObject* jsonUDC = new JSONObject();
jsonUDC->addUniqueID();
JSONArray* jsonUDCArray = new JSONArray();
jsonUDC->getMaps()["Values"] = jsonUDCArray;
for (unsigned int i = 0; i < osgSim_userdata->size(); i++) {
const osgSim::ShapeAttribute& attr = (*osgSim_userdata)[i];
JSONObject* jsonEntry = new JSONObject();
jsonEntry->getMaps()["Name"] = new JSONValue<std::string>(attr.getName());
osg::ref_ptr<JSONValue<std::string> > value;
switch(attr.getType()) {
case osgSim::ShapeAttribute::INTEGER:
{
std::stringstream ss;
ss << attr.getInt();
value = new JSONValue<std::string>(ss.str());
}
break;
case osgSim::ShapeAttribute::DOUBLE:
{
std::stringstream ss;
ss << attr.getDouble();
value = new JSONValue<std::string>(ss.str());
}
break;
case osgSim::ShapeAttribute::STRING:
{
std::stringstream ss;
ss << attr.getString();
value = new JSONValue<std::string>(ss.str());
}
break;
case osgSim::ShapeAttribute::UNKNOWN:
default:
break;
}
jsonEntry->getMaps()["Value"] = value;
jsonUDCArray->getArray().push_back(jsonEntry);
}
json->getMaps()["UserDataContainer"] = jsonUDC;
} else if (osg->getUserDataContainer()) {
JSONObject* jsonUDC = new JSONObject();
jsonUDC->addUniqueID();
if (!osg->getUserDataContainer()->getName().empty()) {
jsonUDC->getMaps()["Name"] = new JSONValue<std::string>(osg->getUserDataContainer()->getName());
}
JSONArray* jsonUDCArray = new JSONArray();
jsonUDC->getMaps()["Values"] = jsonUDCArray;
for (unsigned int i = 0; i < osg->getUserDataContainer()->getNumUserObjects(); i++) {
osg::Object* o = osg->getUserDataContainer()->getUserObject(i);
std::string name, value;
getStringifiedUserValue(o, name, value);
if(!name.empty() && !value.empty())
{
JSONObject* jsonEntry = new JSONObject();
jsonEntry->getMaps()["Name"] = new JSONValue<std::string>(name);
jsonEntry->getMaps()["Value"] = new JSONValue<std::string>(value);
jsonUDCArray->getArray().push_back(jsonEntry);
}
}
json->getMaps()["UserDataContainer"] = jsonUDC;
}
}
void getStringifiedUserValue(osg::Object* o, std::string& name, std::string& value) {
if(getStringifiedUserValue<std::string>(o, name, value)) return;
if(getStringifiedUserValue<char>(o, name, value)) return;
if(getStringifiedUserValue<bool>(o, name, value)) return;
if(getStringifiedUserValue<short>(o, name, value)) return;
if(getStringifiedUserValue<unsigned short>(o, name, value)) return;
if(getStringifiedUserValue<int>(o, name, value)) return;
if(getStringifiedUserValue<unsigned int>(o, name, value)) return;
if(getStringifiedUserValue<float>(o, name, value)) return;
if(getStringifiedUserValue<double>(o, name, value)) return;
}
template<typename T>
bool getStringifiedUserValue(osg::Object* o, std::string& name, std::string& value) {
osg::TemplateValueObject<T>* vo = dynamic_cast< osg::TemplateValueObject<T>* >(o);
if (vo) {
std::ostringstream oss;
oss << vo->getValue();
name = vo->getName();
value = oss.str();
return true;
}
return false;
}
static JSONValue<std::string>* getBlendFuncMode(GLenum mode) {
switch (mode) {
case osg::BlendFunc::DST_ALPHA: return new JSONValue<std::string>("DST_ALPHA");
case osg::BlendFunc::DST_COLOR: return new JSONValue<std::string>("DST_COLOR");
case osg::BlendFunc::ONE: return new JSONValue<std::string>("ONE");
case osg::BlendFunc::ONE_MINUS_DST_ALPHA: return new JSONValue<std::string>("ONE_MINUS_DST_ALPHA");
case osg::BlendFunc::ONE_MINUS_DST_COLOR: return new JSONValue<std::string>("ONE_MINUS_DST_COLOR");
case osg::BlendFunc::ONE_MINUS_SRC_ALPHA: return new JSONValue<std::string>("ONE_MINUS_SRC_ALPHA");
case osg::BlendFunc::ONE_MINUS_SRC_COLOR: return new JSONValue<std::string>("ONE_MINUS_SRC_COLOR");
case osg::BlendFunc::SRC_ALPHA: return new JSONValue<std::string>("SRC_ALPHA");
case osg::BlendFunc::SRC_ALPHA_SATURATE: return new JSONValue<std::string>("SRC_ALPHA_SATURATE");
case osg::BlendFunc::SRC_COLOR: return new JSONValue<std::string>("SRC_COLOR");
case osg::BlendFunc::CONSTANT_COLOR: return new JSONValue<std::string>("CONSTANT_COLOR");
case osg::BlendFunc::ONE_MINUS_CONSTANT_COLOR: return new JSONValue<std::string>("ONE_MINUS_CONSTANT_COLOR");
case osg::BlendFunc::CONSTANT_ALPHA: return new JSONValue<std::string>("CONSTANT_ALPHA");
case osg::BlendFunc::ONE_MINUS_CONSTANT_ALPHA: return new JSONValue<std::string>("ONE_MINUS_CONSTANT_ALPHA");
case osg::BlendFunc::ZERO: return new JSONValue<std::string>("ZERO");
default:
return new JSONValue<std::string>("ONE");
}
return new JSONValue<std::string>("ONE");
}
static JSONValue<std::string>* getJSONFilterMode(osg::Texture::FilterMode mode)
{
switch(mode) {
case GL_LINEAR:
return new JSONValue<std::string>("LINEAR");
case GL_LINEAR_MIPMAP_LINEAR:
return new JSONValue<std::string>("LINEAR_MIPMAP_LINEAR");
case GL_LINEAR_MIPMAP_NEAREST:
return new JSONValue<std::string>("LINEAR_MIPMAP_NEAREST");
case GL_NEAREST:
return new JSONValue<std::string>("NEAREST");
case GL_NEAREST_MIPMAP_LINEAR:
return new JSONValue<std::string>("NEAREST_MIPMAP_LINEAR");
case GL_NEAREST_MIPMAP_NEAREST:
return new JSONValue<std::string>("NEAREST_MIPMAP_NEAREST");
default:
return 0;
}
return 0;
}
static JSONValue<std::string>* getJSONWrapMode(osg::Texture::WrapMode mode)
{
switch(mode) {
case GL_CLAMP:
// clamp does not exist in opengles 2.0
//return new JSONValue<std::string>("CLAMP");
return new JSONValue<std::string>("CLAMP_TO_EDGE");
case GL_CLAMP_TO_EDGE:
return new JSONValue<std::string>("CLAMP_TO_EDGE");
case GL_CLAMP_TO_BORDER_ARB:
return new JSONValue<std::string>("CLAMP_TO_BORDER");
case GL_REPEAT:
return new JSONValue<std::string>("REPEAT");
case GL_MIRRORED_REPEAT_IBM:
return new JSONValue<std::string>("MIRROR");
default:
return 0;
}
return 0;
}
JSONObject* createImage(osg::Image* image, bool inlineImages, int maxTextureDimension, const std::string &baseName)
{
if (!image) {
osg::notify(osg::WARN) << "unknown image from texture2d " << std::endl;
return new JSONValue<std::string>("/unknown.png");
} else {
std::string modelDir = osgDB::getFilePath(baseName);
if (!image->getFileName().empty() && image->getWriteHint() != osg::Image::STORE_INLINE) {
if(maxTextureDimension) {
int new_s = osg::Image::computeNearestPowerOfTwo(image->s());
int new_t = osg::Image::computeNearestPowerOfTwo(image->t());
bool notValidPowerOf2 = false;
if (new_s != image->s() || image->s() > maxTextureDimension) notValidPowerOf2 = true;
if (new_t != image->t() || image->t() > maxTextureDimension) notValidPowerOf2 = true;
if (notValidPowerOf2) {
image->ensureValidSizeForTexturing(maxTextureDimension);
if(osgDB::isAbsolutePath(image->getFileName()))
osgDB::writeImageFile(*image, image->getFileName());
else
osgDB::writeImageFile(*image,
osgDB::concatPaths(modelDir,
image->getFileName()));
}
}
} else {
// no image file so use this inline name image and create a file
std::stringstream ss;
ss << osgDB::getFilePath(baseName) << osgDB::getNativePathSeparator();
ss << (long int)image << ".inline_conv_generated.png"; // write the pointer location
std::string filename = ss.str();
if (osgDB::writeImageFile(*image, filename)) {
image->setFileName(filename);
}
}
if (!image->getFileName().empty()) { // means that everything went ok
if (inlineImages) {
std::ifstream in(osgDB::findDataFile(image->getFileName()).c_str());
if (in.is_open())
{
std::stringstream out;
out << "data:image/" << osgDB::getLowerCaseFileExtension(image->getFileName()) << ";base64,";
base64::encode(std::istreambuf_iterator<char>(in),
std::istreambuf_iterator<char>(),
std::ostreambuf_iterator<char>(out), false);
return new JSONValue<std::string>(out.str());
}
}
return new JSONValue<std::string>(image->getFileName());
}
}
return 0;
}
JSONObject* WriteVisitor::createJSONBufferArray(osg::Array* array, osg::Geometry* geom)
{
if (_maps.find(array) != _maps.end())
return _maps[array]->getShadowObject();
osg::ref_ptr<JSONBufferArray> json = new JSONBufferArray(array);
json->addUniqueID();
_maps[array] = json;
if(geom && _mergeAllBinaryFiles) {
setBufferName(json.get(), geom);
}
return json.get();
}
JSONObject* WriteVisitor::createJSONDrawElementsUInt(osg::DrawElementsUInt* de, osg::Geometry* geom)
{
if (_maps.find(de) != _maps.end())
return _maps[de]->getShadowObject();
JSONDrawElements<osg::DrawElementsUInt>* json = new JSONDrawElements<osg::DrawElementsUInt>(*de);
json->addUniqueID();
_maps[de] = json;
if(geom && _mergeAllBinaryFiles) {
setBufferName(json, geom);
}
return json;
}
JSONObject* WriteVisitor::createJSONDrawElementsUShort(osg::DrawElementsUShort* de, osg::Geometry* geom)
{
if (_maps.find(de) != _maps.end())
return _maps[de]->getShadowObject();
JSONDrawElements<osg::DrawElementsUShort>* json = new JSONDrawElements<osg::DrawElementsUShort>(*de);
json->addUniqueID();
_maps[de] = json;
if(geom && _mergeAllBinaryFiles) {
setBufferName(json, geom);
}
return json;
}
JSONObject* WriteVisitor::createJSONDrawElementsUByte(osg::DrawElementsUByte* de, osg::Geometry* geom)
{
if (_maps.find(de) != _maps.end())
return _maps[de]->getShadowObject();
JSONDrawElements<osg::DrawElementsUByte>* json = new JSONDrawElements<osg::DrawElementsUByte>(*de);
json->addUniqueID();
_maps[de] = json;
if(geom && _mergeAllBinaryFiles) {
setBufferName(json, geom);
}
return json;
}
// use to convert draw array quads to draw elements triangles
JSONObject* WriteVisitor::createJSONDrawElements(osg::DrawArrays* drawArray, osg::Geometry* geom)
{
if (_maps.find(drawArray) != _maps.end())
return _maps[drawArray]->getShadowObject();
if (drawArray->getMode() != GL_QUADS) {
osg::notify(osg::WARN) << "" << std::endl;
return 0;
}
osg::ref_ptr<osg::DrawElementsUShort> de = new osg::DrawElementsUShort(GL_TRIANGLES);
for (int i = 0; i < drawArray->getCount()/4; ++i) {
int base = drawArray->getFirst() + i*4;
de->push_back(base + 0);
de->push_back(base + 1);
de->push_back(base + 3);
de->push_back(base + 1);
de->push_back(base + 2);
de->push_back(base + 3);
}
JSONDrawElements<osg::DrawElementsUShort>* json = new JSONDrawElements<osg::DrawElementsUShort>(*de);
json->addUniqueID();
_maps[drawArray] = json;
if(geom && _mergeAllBinaryFiles) {
setBufferName(json, geom);
}
return json;
}
JSONObject* WriteVisitor::createJSONDrawArray(osg::DrawArrays* da, osg::Geometry* geom)
{
if (_maps.find(da) != _maps.end())
return _maps[da]->getShadowObject();
osg::ref_ptr<JSONDrawArray> json = new JSONDrawArray(*da);
json->addUniqueID();
_maps[da] = json;
if(geom && _mergeAllBinaryFiles) {
setBufferName(json.get(), geom);
}
return json.get();
}
JSONObject* WriteVisitor::createJSONDrawArrayLengths(osg::DrawArrayLengths* da, osg::Geometry* geom)
{
if (_maps.find(da) != _maps.end())
return _maps[da]->getShadowObject();
osg::ref_ptr<JSONDrawArrayLengths> json = new JSONDrawArrayLengths(*da);
json->addUniqueID();
_maps[da] = json;
if(geom && _mergeAllBinaryFiles) {
setBufferName(json.get(), geom);
}
return json.get();
}
JSONObject* WriteVisitor::createJSONGeometry(osg::Geometry* geom)
{
if (_maps.find(geom) != _maps.end())
return _maps[geom]->getShadowObject();
//if (needToSplit(*geom))
// error();
osg::ref_ptr<JSONObject> json = new JSONNode;
json->addUniqueID();
_maps[geom] = json;
if (geom->getStateSet())
createJSONStateSet(json.get(), geom->getStateSet());
translateObject(json.get(), geom);
osg::ref_ptr<JSONObject> attributes = new JSONObject;
int nbVertexes = 0;
if (geom->getVertexArray()) {
nbVertexes = geom->getVertexArray()->getNumElements();
attributes->getMaps()["Vertex"] = createJSONBufferArray(geom->getVertexArray(), geom);
}
if (geom->getNormalArray()) {
attributes->getMaps()["Normal"] = createJSONBufferArray(geom->getNormalArray(), geom);
int nb = geom->getNormalArray()->getNumElements();
if (nbVertexes != nb) {
osg::notify(osg::FATAL) << "Fatal nb normals " << nb << " != " << nbVertexes << std::endl;
error();
}
}
if (geom->getColorArray()) {
attributes->getMaps()["Color"] = createJSONBufferArray(geom->getColorArray(), geom);
int nb = geom->getColorArray()->getNumElements();
if (nbVertexes != nb) {
osg::notify(osg::FATAL) << "Fatal nb colors " << nb << " != " << nbVertexes << std::endl;
error();
}
}
std::stringstream ss;
for ( int i = 0; i < 32; i++) {
ss.str("");
ss << "TexCoord" << i;
//osg::notify(osg::NOTICE) << ss.str() << std::endl;
if (geom->getTexCoordArray(i)) {
attributes->getMaps()[ss.str()] = createJSONBufferArray(geom->getTexCoordArray(i), geom);
int nb = geom->getTexCoordArray(i)->getNumElements();
if (nbVertexes != nb) {
osg::notify(osg::FATAL) << "Fatal nb tex coord " << i << " " << nb << " != " << nbVertexes << std::endl;
error();
}
}
}
osg::Array* tangents = getTangentSpaceArray(*geom);
if (tangents) {
attributes->getMaps()["Tangent"] = createJSONBufferArray(tangents, geom);
int nb = tangents->getNumElements();
if (nbVertexes != nb) {
osg::notify(osg::FATAL) << "Fatal nb tangent " << nb << " != " << nbVertexes << std::endl;
error();
}
}
json->getMaps()["VertexAttributeList"] = attributes;
if (!geom->getPrimitiveSetList().empty()) {
osg::ref_ptr<JSONArray> primitives = new JSONArray();
for (unsigned int i = 0; i < geom->getNumPrimitiveSets(); ++i) {
osg::ref_ptr<JSONObject> obj = new JSONObject;
osg::PrimitiveSet* primitive = geom->getPrimitiveSet(i);
if(!primitive) continue;
if (primitive->getType() == osg::PrimitiveSet::DrawArraysPrimitiveType) {
osg::DrawArrays* da = dynamic_cast<osg::DrawArrays*>((primitive));
primitives->getArray().push_back(obj);
if (da->getMode() == GL_QUADS) {
obj->getMaps()["DrawElementsUShort"] = createJSONDrawElements(da, geom);
} else {
obj->getMaps()["DrawArrays"] = createJSONDrawArray(da, geom);
}
} else if (primitive->getType() == osg::PrimitiveSet::DrawElementsUIntPrimitiveType) {
osg::DrawElementsUInt* da = dynamic_cast<osg::DrawElementsUInt*>((primitive));
primitives->getArray().push_back(obj);
obj->getMaps()["DrawElementsUInt"] = createJSONDrawElementsUInt(da, geom);
} else if (primitive->getType() == osg::PrimitiveSet::DrawElementsUShortPrimitiveType) {
osg::DrawElementsUShort* da = dynamic_cast<osg::DrawElementsUShort*>((primitive));
primitives->getArray().push_back(obj);
obj->getMaps()["DrawElementsUShort"] = createJSONDrawElementsUShort(da, geom);
} else if (primitive->getType() == osg::PrimitiveSet::DrawElementsUBytePrimitiveType) {
osg::DrawElementsUByte* da = dynamic_cast<osg::DrawElementsUByte*>((primitive));
primitives->getArray().push_back(obj);
obj->getMaps()["DrawElementsUByte"] = createJSONDrawElementsUByte(da, geom);
} else if (primitive->getType() == osg::PrimitiveSet::DrawArrayLengthsPrimitiveType) {
osg::DrawArrayLengths* dal = dynamic_cast<osg::DrawArrayLengths*>((primitive));
primitives->getArray().push_back(obj);
obj->getMaps()["DrawArrayLengths"] = createJSONDrawArrayLengths(dal, geom);
} else {
osg::notify(osg::WARN) << "Primitive Type " << geom->getPrimitiveSetList()[i]->getType() << " not supported, skipping" << std::endl;
}
}
json->getMaps()["PrimitiveSetList"] = primitives;
}
return json.get();
}
JSONObject* WriteVisitor::createJSONBlendFunc(osg::BlendFunc* sa)
{
if (_maps.find(sa) != _maps.end())
return _maps[sa]->getShadowObject();
osg::ref_ptr<JSONObject> json = new JSONObject;
json->addUniqueID();
_maps[sa] = json;
translateObject(json.get(), sa);
json->getMaps()["SourceRGB"] = getBlendFuncMode(sa->getSource());
json->getMaps()["DestinationRGB"] = getBlendFuncMode(sa->getDestination());
json->getMaps()["SourceAlpha"] = getBlendFuncMode(sa->getSourceAlpha());
json->getMaps()["DestinationAlpha"] = getBlendFuncMode(sa->getDestinationAlpha());
return json.release();
}
JSONObject* WriteVisitor::createJSONBlendColor(osg::BlendColor* sa)
{
if (_maps.find(sa) != _maps.end())
return _maps[sa]->getShadowObject();
osg::ref_ptr<JSONObject> json = new JSONObject;
json->addUniqueID();
_maps[sa] = json;
translateObject(json.get(), sa);
json->getMaps()["ConstantColor"] = new JSONVec4Array(sa->getConstantColor());
return json.release();
}
JSONObject* WriteVisitor::createJSONCullFace(osg::CullFace* sa)
{
if (_maps.find(sa) != _maps.end())
return _maps[sa]->getShadowObject();
osg::ref_ptr<JSONObject> json = new JSONObject;
json->addUniqueID();
_maps[sa] = json;
translateObject(json.get(), sa);
osg::ref_ptr<JSONValue<std::string> > mode = new JSONValue<std::string>("BACK");
if (sa->getMode() == osg::CullFace::FRONT) {
mode = new JSONValue<std::string>("BACK");
}
if (sa->getMode() == osg::CullFace::FRONT_AND_BACK) {
mode = new JSONValue<std::string>("FRONT_AND_BACK");
}
json->getMaps()["Mode"] = mode;
return json.release();
}
JSONObject* WriteVisitor::createJSONMaterial(osg::Material* material)
{
if (_maps.find(material) != _maps.end())
return _maps[material]->getShadowObject();
osg::ref_ptr<JSONObject> jsonMaterial = new JSONMaterial;
jsonMaterial->addUniqueID();
_maps[material] = jsonMaterial;
translateObject(jsonMaterial.get(), material);
jsonMaterial->getMaps()["Ambient"] = new JSONVec4Array(material->getAmbient(osg::Material::FRONT));
jsonMaterial->getMaps()["Diffuse"] = new JSONVec4Array(material->getDiffuse(osg::Material::FRONT));
jsonMaterial->getMaps()["Specular"] = new JSONVec4Array(material->getSpecular(osg::Material::FRONT));
jsonMaterial->getMaps()["Emission"] = new JSONVec4Array(material->getEmission(osg::Material::FRONT));
jsonMaterial->getMaps()["Shininess"] = new JSONValue<float>(material->getShininess(osg::Material::FRONT));
return jsonMaterial.release();
}
JSONObject* WriteVisitor::createJSONLight(osg::Light* light)
{
if (_maps.find(light) != _maps.end())
return _maps[light]->getShadowObject();
osg::ref_ptr<JSONObject> jsonLight = new JSONLight;
jsonLight->addUniqueID();
_maps[light] = jsonLight;
translateObject(jsonLight.get(), light);
jsonLight->getMaps()["LightNum"] = new JSONValue<int>(light->getLightNum());
jsonLight->getMaps()["Ambient"] = new JSONVec4Array(light->getAmbient());
jsonLight->getMaps()["Diffuse"] = new JSONVec4Array(light->getDiffuse());
jsonLight->getMaps()["Specular"] = new JSONVec4Array(light->getSpecular());
jsonLight->getMaps()["Position"] = new JSONVec4Array(light->getPosition());
jsonLight->getMaps()["Direction"] = new JSONVec3Array(light->getDirection());
jsonLight->getMaps()["ConstantAttenuation"] = new JSONValue<float>(light->getConstantAttenuation());
jsonLight->getMaps()["LinearAttenuation"] = new JSONValue<float>(light->getLinearAttenuation());
jsonLight->getMaps()["QuadraticAttenuation"] = new JSONValue<float>(light->getQuadraticAttenuation());
jsonLight->getMaps()["SpotExponent"] = new JSONValue<float>(light->getSpotExponent());
jsonLight->getMaps()["SpotCutoff"] = new JSONValue<float>(light->getSpotCutoff());
return jsonLight.release();
}
template <class T> JSONObject* createImageFromTexture(osg::Texture* texture, JSONObject* jsonTexture, bool inlineImages,
int maxTextureDimension, const std::string &baseName = "")
{
T* text = dynamic_cast<T*>( texture);
if (text) {
translateObject(jsonTexture,text);
JSONObject* image = createImage(text->getImage(), inlineImages, maxTextureDimension, baseName);
if (image)
jsonTexture->getMaps()["File"] = image;
return jsonTexture;
}
return 0;
}
JSONObject* WriteVisitor::createJSONPagedLOD(osg::PagedLOD *plod)
{
if (!plod) { return 0; }
if (_maps.find(plod) != _maps.end()) {
return _maps[plod]->getShadowObject();
}
osg::ref_ptr<JSONObject> jsonPlod = new JSONNode;
jsonPlod->addUniqueID();
_maps[plod] = jsonPlod;
// Center Mode
osg::ref_ptr<JSONValue<std::string> > centerMode = new JSONValue<std::string>("USE_BOUNDING_SPHERE_CENTER");
if (plod->getCenterMode() == osg::LOD::USER_DEFINED_CENTER) {
centerMode = new JSONValue<std::string>("USER_DEFINED_CENTER");
} else if (plod->getCenterMode() == osg::LOD::UNION_OF_BOUNDING_SPHERE_AND_USER_DEFINED){
centerMode = new JSONValue<std::string>("UNION_OF_BOUNDING_SPHERE_AND_USER_DEFINED");
}
jsonPlod->getMaps()["CenterMode"] = centerMode;
// User defined center and radius
jsonPlod->getMaps()["UserCenter"] = new JSONVec4Array(osg::Vec4(plod->getCenter().x(), plod->getCenter().y(),plod->getCenter().z(), plod->getRadius()));
// Range Mode
osg::ref_ptr<JSONValue<std::string> > rangeMode = new JSONValue<std::string>("DISTANCE_FROM_EYE_POINT");
if (plod->getRangeMode() == osg::LOD::PIXEL_SIZE_ON_SCREEN) {
rangeMode = new JSONValue<std::string>("PIXEL_SIZE_ON_SCREEN");
}
jsonPlod->getMaps()["RangeMode"] = rangeMode;
// Range List
//osg::ref_ptr<JSONArray> rangeList = new JSONArray;
JSONObject* rangeObject = new JSONObject;
for (unsigned int i =0; i< plod->getRangeList().size(); i++)
{
std::stringstream ss;
ss << "Range ";
ss << i;
std::string str = ss.str();
rangeObject->getMaps()[str] = new JSONVec2Array(osg::Vec2(plod->getRangeList()[i].first, plod->getRangeList()[i].second));
}
jsonPlod->getMaps()["RangeList"] = rangeObject;
// File List
JSONObject* fileObject = new JSONObject;
for (unsigned int i =0; i< plod->getNumFileNames(); i++)
{
std::stringstream ss;
ss << "File ";
ss << i;
std::string str = ss.str();
// We need to convert first from osg format to osgjs format.
osg::ref_ptr<osg::Node> n = osgDB::readNodeFile(plod->getFileName(i)+".gles");
if (n)
{
std::string filename(osgDB::getStrippedName(plod->getFileName(i))+".osgjs");
osgDB::writeNodeFile(*n,filename);
fileObject->getMaps()[str] = new JSONValue<std::string>(filename);
}
else
fileObject->getMaps()[str] = new JSONValue<std::string>("");
}
jsonPlod->getMaps()["RangeDataList"] = fileObject;
return jsonPlod.get();
}
JSONObject* WriteVisitor::createJSONTexture(osg::Texture* texture)
{
if (!texture) {
return 0;
}
if (_maps.find(texture) != _maps.end()) {
return _maps[texture]->getShadowObject();
}
osg::ref_ptr<JSONObject> jsonTexture = new JSONObject;
jsonTexture->addUniqueID();
_maps[texture] = jsonTexture;
jsonTexture->getMaps()["MagFilter"] = getJSONFilterMode(texture->getFilter(osg::Texture::MAG_FILTER));
jsonTexture->getMaps()["MinFilter"] = getJSONFilterMode(texture->getFilter(osg::Texture::MIN_FILTER));
jsonTexture->getMaps()["WrapS"] = getJSONWrapMode(texture->getWrap(osg::Texture::WRAP_S));
jsonTexture->getMaps()["WrapT"] = getJSONWrapMode(texture->getWrap(osg::Texture::WRAP_T));
{
JSONObject* obj = createImageFromTexture<osg::Texture1D>(texture, jsonTexture.get(), this->_inlineImages,
this->_maxTextureDimension, this->_baseName);
if (obj) {
return obj;
}
}
{
JSONObject* obj = createImageFromTexture<osg::Texture2D>(texture, jsonTexture.get(), this->_inlineImages,
this->_maxTextureDimension, this->_baseName);
if (obj) {
return obj;
}
}
{
JSONObject* obj = createImageFromTexture<osg::TextureRectangle>(texture, jsonTexture.get(), this->_inlineImages,
this->_maxTextureDimension, this->_baseName);
if (obj) {
return obj;
}
}
return 0;
}
JSONObject* WriteVisitor::createJSONStateSet(osg::StateSet* stateset)
{
if (_maps.find(stateset) != _maps.end()) {
return _maps[stateset]->getShadowObject();
}
osg::ref_ptr<JSONObject> jsonStateSet = new JSONStateSet;
_maps[stateset] = jsonStateSet;
jsonStateSet->addUniqueID();
translateObject(jsonStateSet.get(), stateset);
if (stateset->getRenderingHint() == osg::StateSet::TRANSPARENT_BIN) {
jsonStateSet->getMaps()["RenderingHint"] = new JSONValue<std::string>("TRANSPARENT_BIN");
}
bool blendEnabled = false;
if (stateset->getMode(GL_BLEND) == osg::StateAttribute::ON) {
blendEnabled = true;
}
osg::ref_ptr<JSONArray> textureAttributeList = new JSONArray;
int lastTextureIndex = -1;
for (int i = 0; i < 32; ++i) {
osg::Texture* texture = dynamic_cast<osg::Texture*>(stateset->getTextureAttribute(i,osg::StateAttribute::TEXTURE));
JSONArray* textureUnit = new JSONArray;
JSONObject* jsonTexture = createJSONTexture(texture);
textureAttributeList->getArray().push_back(textureUnit);
if (jsonTexture) {
JSONObject* textureObject = new JSONObject;
textureObject->getMaps()["osg.Texture"] = jsonTexture;
textureUnit->getArray().push_back(textureObject);
lastTextureIndex = i;
}
}
if (lastTextureIndex > -1) {
textureAttributeList->getArray().resize(lastTextureIndex+1);
jsonStateSet->getMaps()["TextureAttributeList"] = textureAttributeList;
}
osg::ref_ptr<JSONArray> attributeList = new JSONArray;
osg::Material* material = dynamic_cast<osg::Material*>(stateset->getAttribute(osg::StateAttribute::MATERIAL));
if (material) {
JSONObject* obj = new JSONObject;
obj->getMaps()["osg.Material"] = createJSONMaterial(material);
attributeList->getArray().push_back(obj);
}
osg::BlendFunc* blendFunc = dynamic_cast<osg::BlendFunc*>(stateset->getAttribute(osg::StateAttribute::BLENDFUNC));
if (blendFunc) {
JSONObject* obj = new JSONObject;
obj->getMaps()["osg.BlendFunc"] = createJSONBlendFunc(blendFunc);
attributeList->getArray().push_back(obj);
} else if (blendEnabled == true) {
JSONObject* obj = new JSONObject;
osg::ref_ptr<osg::BlendFunc> defaultBlend = new osg::BlendFunc();
obj->getMaps()["osg.BlendFunc"] = createJSONBlendFunc(defaultBlend.get());
attributeList->getArray().push_back(obj);
}
osg::ref_ptr<osg::CullFace> cullFace = dynamic_cast<osg::CullFace*>(stateset->getAttribute(osg::StateAttribute::CULLFACE));
osg::StateAttribute::GLModeValue cullMode = stateset->getMode(GL_CULL_FACE);
if (cullFace || cullMode != osg::StateAttribute::INHERIT) {
JSONObject* obj = new JSONObject;
JSONObject* cf = 0;
if (cullMode == osg::StateAttribute::OFF) {
osg::ref_ptr<osg::CullFace> defaultCull = new osg::CullFace();
cf = createJSONCullFace(defaultCull.get());
cf->getMaps()["Mode"] = new JSONValue<std::string>("DISABLE");
obj->getMaps()["osg.CullFace"] = cf;
attributeList->getArray().push_back(obj);
} else {
if (!cullFace) {
cullFace = new osg::CullFace();
}
cf = createJSONCullFace(cullFace.get());
}
obj->getMaps()["osg.CullFace"] = cf;
attributeList->getArray().push_back(obj);
}
osg::BlendColor* blendColor = dynamic_cast<osg::BlendColor*>(stateset->getAttribute(osg::StateAttribute::BLENDCOLOR));
if (blendColor) {
JSONObject* obj = new JSONObject;
obj->getMaps()["osg.BlendColor"] = createJSONBlendColor(blendColor);
attributeList->getArray().push_back(obj);
}
if (!attributeList->getArray().empty()) {
jsonStateSet->getMaps()["AttributeList"] = attributeList;
}
osg::StateSet::ModeList modeList = stateset->getModeList();
for (unsigned int i = 0; i < modeList.size(); ++i) {
// add modes
}
if (jsonStateSet->getMaps().empty())
return 0;
return jsonStateSet.release();
}
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