void
WriterNodeVisitor::createListTriangle(osg::Geometry * geo,
ListTriangle & listTriangles,
bool & texcoords,
unsigned int & drawable_n)
{
const osg::Array * basevecs = geo->getVertexArray();
if (!basevecs || basevecs->getNumElements()==0) return;
// Texture coords
const osg::Array * basetexvecs = geo->getNumTexCoordArrays()>=1 ? geo->getTexCoordArray(0) : NULL;
if (basetexvecs)
{
unsigned int nb = basetexvecs->getNumElements();
if (nb != geo->getVertexArray()->getNumElements())
{
OSG_NOTIFY(osg::FATAL) << "There are more/less texture coords than vertices (corrupted geometry)" << std::endl;
_succeeded = false;
return;
}
texcoords = true;
}
int material = processStateSet(_currentStateSet.get());
for(unsigned int i = 0; i < geo->getNumPrimitiveSets(); ++i) //Fill the Triangle List
{
osg::PrimitiveSet* ps = geo->getPrimitiveSet(i);
PrimitiveIndexWriter pif(geo, listTriangles, drawable_n, material);
ps->accept(pif);
}
}
bool osg::isGLExtensionOrVersionSupported(unsigned int contextID, const char *extension, float requiredGLVersion)
{
ExtensionSet& extensionSet = s_glExtensionSetList[contextID];
std::string& rendererString = s_glRendererList[contextID];
// first check to see if GL version number of recent enough.
bool result = requiredGLVersion <= osg::getGLVersionNumber();
if (!result)
{
// if not already set up, initialize all the per graphic context values.
if (!s_glInitializedList[contextID])
{
s_glInitializedList[contextID] = 1;
// set up the renderer
const GLubyte* renderer = glGetString(GL_RENDERER);
rendererString = renderer ? (const char*)renderer : "";
// get the extension list from OpenGL.
GLint numExt = 0;
#if !defined(OSG_GLES1_AVAILABLE) && !defined(OSG_GLES2_AVAILABLE)
if( osg::getGLVersionNumber() >= 3.0 )
{
// OpenGL 3.0 adds the concept of indexed strings and
// deprecates calls to glGetString( GL_EXTENSIONS ), which
// will now generate GL_INVALID_ENUM.
// Get extensions using new indexed string interface.
typedef const GLubyte * GL_APIENTRY PFNGLGETSTRINGIPROC( GLenum, GLuint );
PFNGLGETSTRINGIPROC* glGetStringi = 0;
setGLExtensionFuncPtr( glGetStringi, "glGetStringi");
if( glGetStringi != NULL )
{
# ifndef GL_NUM_EXTENSIONS
# define GL_NUM_EXTENSIONS 0x821D
# endif
glGetIntegerv( GL_NUM_EXTENSIONS, &numExt );
int idx;
for( idx=0; idx<numExt; idx++ )
{
extensionSet.insert( std::string( (char*)( glGetStringi( GL_EXTENSIONS, idx ) ) ) );
}
}
else
{
OSG_WARN << "isGLExtensionOrVersionSupported: Can't obtain glGetStringi function pointer." << std::endl;
}
}
#endif
// No extensions found so far, so try with glGetString
if (numExt == 0)
{
// Get extensions using GL1/2 interface.
const char* extensions = (const char*)glGetString(GL_EXTENSIONS);
if (extensions==NULL) return false;
// insert the ' ' delimiated extensions words into the extensionSet.
const char *startOfWord = extensions;
const char *endOfWord;
while ((endOfWord = strchr(startOfWord,' '))!=NULL)
{
extensionSet.insert(std::string(startOfWord,endOfWord));
startOfWord = endOfWord+1;
}
if (*startOfWord!=0) extensionSet.insert(std::string(startOfWord));
}
#if defined(WIN32) && (defined(OSG_GL1_AVAILABLE) || defined(OSG_GL2_AVAILABLE) || defined(OSG_GL3_AVAILABLE))
// add WGL extensions to the list
typedef const char* WINAPI WGLGETEXTENSIONSSTRINGARB(HDC);
WGLGETEXTENSIONSSTRINGARB* wglGetExtensionsStringARB = 0;
setGLExtensionFuncPtr(wglGetExtensionsStringARB, "wglGetExtensionsStringARB");
typedef const char* WINAPI WGLGETEXTENSIONSSTRINGEXT();
WGLGETEXTENSIONSSTRINGEXT* wglGetExtensionsStringEXT = 0;
setGLExtensionFuncPtr(wglGetExtensionsStringEXT, "wglGetExtensionsStringEXT");
const char* wglextensions = 0;
if (wglGetExtensionsStringARB)
{
HDC dc = wglGetCurrentDC();
wglextensions = wglGetExtensionsStringARB(dc);
}
else if (wglGetExtensionsStringEXT)
{
wglextensions = wglGetExtensionsStringEXT();
}
if (wglextensions)
{
const char* startOfWord = wglextensions;
const char* endOfWord;
while ((endOfWord = strchr(startOfWord, ' ')))
{
extensionSet.insert(std::string(startOfWord, endOfWord));
startOfWord = endOfWord+1;
}
if (*startOfWord != 0) extensionSet.insert(std::string(startOfWord));
}
#endif
OSG_NOTIFY(INFO)<<"OpenGL extensions supported by installed OpenGL drivers are:"<<std::endl;
for(ExtensionSet::iterator itr=extensionSet.begin();
itr!=extensionSet.end();
++itr)
{
OSG_NOTIFY(INFO)<<" "<<*itr<<std::endl;
}
}
// true if extension found in extensionSet.
result = extensionSet.find(extension)!=extensionSet.end();
}
void
Lwo2Layer::notify(NotifySeverity severity)
{
OSG_NOTIFY(severity) << "Current layer: " << _number << endl;
OSG_NOTIFY(severity) << " flags \t" << _flags << endl;
OSG_NOTIFY(severity) << " pivot \t" << _pivot << endl;
OSG_NOTIFY(severity) << " name: \t'" << _name.c_str() << "'" << endl;
OSG_NOTIFY(severity) << " parent:\t" << _parent << endl;
// points
OSG_NOTIFY(severity) << " points:\t" << _points.size() << endl;
OSG_NOTIFY(severity) << "\tcoord\t\t\t\ttexcoord" << endl;
OSG_NOTIFY(severity) << "\t=====\t\t\t\t========" << endl;
IteratorPoint itr;
for (itr = _points.begin(); itr != _points.end(); itr++)
{
OSG_NOTIFY(severity) << " \t" << (*itr).coord << "\t\t" << (*itr).texcoord << endl;
}
// polygons
OSG_NOTIFY(severity) << " polygons:\t" << _polygons.size() << endl;
OSG_NOTIFY(severity) << "\tcoord\t\t\t\ttexcoord" << endl;
OSG_NOTIFY(severity) << "\t=====\t\t\t\t========" << endl;
IteratorPolygonsList polygon_iterator;
int polygon_index = 0;
for (polygon_iterator = _polygons.begin(); polygon_iterator != _polygons.end(); polygon_iterator++, polygon_index++)
{
OSG_NOTIFY(severity) << " \t" << polygon_index << " ("<< (*polygon_iterator).size() << " vertexes" << "):" << endl;
for (itr = (*polygon_iterator).begin(); itr != (*polygon_iterator).end(); itr++)
{
OSG_NOTIFY(severity) << " \t" << (*itr).coord << "\t\t" << (*itr).texcoord << endl;
}
OSG_NOTIFY(severity) << endl;
}
// polygons tags
OSG_NOTIFY(severity) << " polygons tags:\t" << _polygons_tag.size() << endl;
IteratorShort short_itr;
for (short_itr = _polygons_tag.begin(); short_itr != _polygons_tag.end(); short_itr++)
{
OSG_NOTIFY(severity) << "\t" << (*short_itr) << endl;
}
}
WindowCaptureCallback::ContextData::ContextData(osg::GraphicsContext* gc, Mode mode, GLenum readBuffer)
: _gc(gc),
_index(_gc->getState()->getContextID()),
_mode(mode),
_readBuffer(readBuffer),
_pixelFormat(GL_RGBA),
_type(GL_UNSIGNED_BYTE),
_width(0),
_height(0),
_currentImageIndex(0),
_currentPboIndex(0),
_reportTimingFrequency(100),
_numTimeValuesRecorded(0),
_timeForReadPixels(0.0),
_timeForMemCpy(0.0),
_timeForCaptureOperation(0.0),
_timeForFullCopy(0.0),
_timeForFullCopyAndOperation(0.0),
_previousFrameTick(0)
{
_previousFrameTick = osg::Timer::instance()->tick();
osg::NotifySeverity level = osg::INFO;
if (gc->getTraits())
{
if (gc->getTraits()->alpha)
{
OSG_NOTIFY(level)<<"ScreenCaptureHandler: Selected GL_RGBA read back format"<<std::endl;
_pixelFormat = GL_RGBA;
}
else
{
OSG_NOTIFY(level)<<"ScreenCaptureHandler: Selected GL_RGB read back format"<<std::endl;
_pixelFormat = GL_RGB;
}
}
getSize(gc, _width, _height);
//OSG_NOTICE<<"Window size "<<_width<<", "<<_height<<std::endl;
// single buffered image
_imageBuffer.push_back(new osg::Image);
// double buffer PBO.
switch(_mode)
{
case(READ_PIXELS):
OSG_NOTIFY(level)<<"ScreenCaptureHandler: Reading window using glReadPixels, without PixelBufferObject."<<std::endl;
break;
case(SINGLE_PBO):
OSG_NOTIFY(level)<<"ScreenCaptureHandler: Reading window using glReadPixels, with a single PixelBufferObject."<<std::endl;
_pboBuffer.push_back(0);
break;
case(DOUBLE_PBO):
OSG_NOTIFY(level)<<"ScreenCaptureHandler: Reading window using glReadPixels, with a double buffer PixelBufferObject."<<std::endl;
_pboBuffer.push_back(0);
_pboBuffer.push_back(0);
break;
case(TRIPLE_PBO):
OSG_NOTIFY(level)<<"ScreenCaptureHandler: Reading window using glReadPixels, with a triple buffer PixelBufferObject."<<std::endl;
_pboBuffer.push_back(0);
_pboBuffer.push_back(0);
_pboBuffer.push_back(0);
break;
default:
break;
}
}
void
WriterNodeVisitor::buildFaces(osg::Geode & geo,
const osg::Matrix & mat,
ListTriangle & listTriangles,
bool texcoords)
{
unsigned int nbTrianglesRemaining = listTriangles.size();
unsigned int nbVerticesRemaining = calcVertices(geo); // May set _succeded to false
if (!succeeded()) return;
std::string name( getUniqueName(geo.getName().empty() ? geo.className() : geo.getName(), true, "geo") );
if (!succeeded()) return;
Lib3dsMesh *mesh = lib3ds_mesh_new( name.c_str() );
if (!mesh)
{
OSG_NOTIFY(osg::FATAL) << "Allocation error" << std::endl;
_succeeded = false;
return;
}
//copyOsgMatrixToLib3dsMatrix(mesh->matrix, mat);
lib3ds_mesh_resize_faces (mesh, osg::minimum(nbTrianglesRemaining, MAX_FACES));
lib3ds_mesh_resize_vertices(mesh, osg::minimum(nbVerticesRemaining, MAX_VERTICES), texcoords ? 0 : 1, 0); // Not mandatory but will allocate once a big block
// Test if the mesh will be split and needs sorting
if (nbVerticesRemaining >= MAX_VERTICES || nbTrianglesRemaining >= MAX_FACES)
{
OSG_INFO << "Sorting elements..." << std::endl;
WriterCompareTriangle cmp(geo, nbVerticesRemaining);
std::sort(listTriangles.begin(), listTriangles.end(), cmp);
}
MapIndices index_vert;
unsigned int numFace = 0; // Current face index
for (ListTriangle::iterator it = listTriangles.begin(); it != listTriangles.end(); ++it) //Go through the triangle list to define meshs
{
// Test if the mesh will be full after adding a face
if (index_vert.size()+3 >= MAX_VERTICES || numFace+1 >= MAX_FACES)
{
// Finnish mesh
lib3ds_mesh_resize_faces (mesh, numFace);
//lib3ds_mesh_resize_vertices() will be called in buildMesh()
buildMesh(geo, mat, index_vert, texcoords, mesh); // May set _succeded to false
if (!succeeded())
{
lib3ds_mesh_free(mesh);
return;
}
// "Reset" values and start over a new mesh
index_vert.clear();
nbTrianglesRemaining -= numFace;
numFace = 0;
// We can't call a thing like "nbVerticesRemaining -= ...;" because points may be used multiple times.
// [Sukender: An optimisation here would take too much time I think.]
mesh = lib3ds_mesh_new( getUniqueName(geo.getName().empty() ? geo.className() : geo.getName(), true, "geo").c_str());
if (!mesh)
{
OSG_NOTIFY(osg::FATAL) << "Allocation error" << std::endl;
_succeeded = false;
return;
}
lib3ds_mesh_resize_faces (mesh, osg::minimum(nbTrianglesRemaining, MAX_FACES));
lib3ds_mesh_resize_vertices(mesh, osg::minimum(nbVerticesRemaining, MAX_VERTICES), texcoords ? 0 : 1, 0); // Not mandatory but will allocate once a big block
}
Lib3dsFace & face = mesh->faces[numFace++];
face.index[0] = getMeshIndexForGeometryIndex(index_vert, it->first.t1, it->second);
face.index[1] = getMeshIndexForGeometryIndex(index_vert, it->first.t2, it->second);
face.index[2] = getMeshIndexForGeometryIndex(index_vert, it->first.t3, it->second);
face.material = it->first.material;
}
buildMesh(geo, mat, index_vert, texcoords, mesh); // May set _succeded to false
if (!succeeded())
{
lib3ds_mesh_free(mesh);
return;
}
}
void
WriterNodeVisitor::buildMesh(osg::Geode & geo,
const osg::Matrix & mat,
MapIndices & index_vert,
bool texcoords,
Lib3dsMesh * mesh)
{
OSG_DEBUG << "Building Mesh" << std::endl;
assert(mesh);
// Write points
assert(index_vert.size() <= MAX_VERTICES);
lib3ds_mesh_resize_vertices(mesh, index_vert.size(), texcoords ? 1 : 0, 0);
for(MapIndices::iterator it = index_vert.begin(); it != index_vert.end();++it)
{
osg::Geometry *g = geo.getDrawable( it->first.second )->asGeometry();
const osg::Array * basevecs = g->getVertexArray();
assert(basevecs);
if (!basevecs || basevecs->getNumElements()==0) continue;
if (basevecs->getType() == osg::Array::Vec3ArrayType)
{
const osg::Vec3Array & vecs= *static_cast<const osg::Vec3Array *>(basevecs);
copyOsgVectorToLib3dsVector(mesh->vertices[it->second], vecs[it->first.first]*mat);
}
else if (basevecs->getType() == osg::Array::Vec3dArrayType)
{
// Handle double presision vertices by converting them to float with a warning
OSG_NOTICE << "3DS format only supports single precision vertices. Converting double precision to single." << std::endl;
const osg::Vec3dArray & vecs= *static_cast<const osg::Vec3dArray *>(basevecs);
copyOsgVectorToLib3dsVector(mesh->vertices[it->second], vecs[it->first.first]*mat);
}
else
{
OSG_NOTIFY(osg::FATAL) << "Vertex array is not Vec3 or Vec3d. Not implemented" << std::endl;
_succeeded = false;
return;
}
}
// Write texture coords (Texture 0 only)
if (texcoords)
{
for(MapIndices::iterator it = index_vert.begin(); it != index_vert.end(); ++it)
{
osg::Geometry *g = geo.getDrawable( it->first.second )->asGeometry();
const osg::Array * texarray = g->getNumTexCoordArrays()>=1 ? g->getTexCoordArray(0) : NULL;
if (!texarray || texarray->getNumElements()==0) continue;
if (g->getTexCoordArray(0)->getType() != osg::Array::Vec2ArrayType)
{
OSG_NOTIFY(osg::FATAL) << "Texture coords array is not Vec2. Not implemented" << std::endl;
_succeeded = false;
return;
}
const osg::Vec2Array & vecs= *static_cast<const osg::Vec2Array *>(texarray);
mesh->texcos[it->second][0] = vecs[it->first.first][0];
mesh->texcos[it->second][1] = vecs[it->first.first][1];
}
}
lib3ds_file_insert_mesh(_file3ds, mesh, _lastMeshIndex);
++_lastMeshIndex;
Lib3dsMeshInstanceNode * node3ds = lib3ds_node_new_mesh_instance(mesh, mesh->name, NULL, NULL, NULL);
lib3ds_file_append_node(_file3ds, reinterpret_cast<Lib3dsNode*>(node3ds), reinterpret_cast<Lib3dsNode*>(_cur3dsNode));
}
std::string WriterNodeVisitor::getUniqueName(const std::string& _defaultValue, bool isNodeName, const std::string & _defaultPrefix, int currentPrefixLen)
{
//const unsigned int MAX_LENGTH = maxNameLen(_extendedFilePaths);
const unsigned int MAX_PREFIX_LENGTH = _extendedFilePaths ? 52 : 6; // Arbitrarily defined for short names, kept enough room for displaying UINT_MAX (10 characters) for long names.
assert(_defaultPrefix.length()<=4); // Default prefix is too long (implementation error)
const std::string defaultPrefix(_defaultPrefix.empty() ? "_" : _defaultPrefix);
if (currentPrefixLen<0) currentPrefixLen = osg::maximum(_defaultPrefix.length(), _defaultValue.length());
currentPrefixLen = osg::clampBelow(currentPrefixLen, static_cast<int>(MAX_PREFIX_LENGTH));
// Tests if default name is valid and unique
NameMap & nameMap = isNodeName ? _nodeNameMap : _imageNameMap;
PrefixMap & prefixMap = isNodeName ? _nodePrefixMap : _imagePrefixMap;
// Handling of paths is simple. Algorithm:
// - For short names, subdirectories are simply forbidden. Use the simple file name.
// - Else, the whole (relative) path must simply be <64 chars.
// After this, begin enumeration.
std::string parentPath, filename, ext, namePrefix;
unsigned int max_val = 0;
// TODO Move the two parts of this giant if/else into two separate functions for better readability.
if (_extendedFilePaths)
{
// Tests if default name is valid and unique
if (is3DSName(_defaultValue, _extendedFilePaths, isNodeName))
{
std::pair<NameMap::iterator, bool> insertion( nameMap.insert(_defaultValue) );
if (insertion.second) return _defaultValue; // Return if element is newly inserted in the map (else there is a naming collision)
}
// Simply separate name and last extension
filename = osgDB::getNameLessExtension(osgDB::getSimpleFileName(_defaultValue));
if (!isNodeName)
{
ext = osgDB::getFileExtensionIncludingDot(_defaultValue);
if (ext == ".") ext = "";
}
// Compute parent path
// Pre-condition: paths are supposed to be relative.
// If full path is too long (>MAX_PREFIX_LENGTH), cut path to let enough space for simple file name.
// Do not cut in the middle of a name, but at path separators.
parentPath = osgDB::getFilePath(_defaultValue);
if (_defaultValue.length() >MAX_PREFIX_LENGTH) // Not parentPath but _defaultValue!
{
// Nodes names: keep last directories (used only for the root name, generally named after the full file path)
// Images names: keep first directories (for images)
if (isNodeName) std::reverse(parentPath.begin(), parentPath.end());
unsigned lenToDelete(filename.length() + ext.length() + 1);
lenToDelete = osg::clampBelow(lenToDelete, MAX_PREFIX_LENGTH);
parentPath = truncateFilenameBytes(parentPath, MAX_PREFIX_LENGTH - lenToDelete); // +1 for the path separator
std::string::size_type separator = parentPath.find_last_of("/\\");
if (separator != std::string::npos) parentPath = parentPath.substr(0, separator);
if (isNodeName) std::reverse(parentPath.begin(), parentPath.end());
}
// Assert "MAX_PREFIX_LENGTH - parent path length - extension length -1" is >=0 and truncate name to this length to get our new prefix.
assert(parentPath.length() + ext.length() <= MAX_PREFIX_LENGTH);
const unsigned int len = MAX_PREFIX_LENGTH - (parentPath.length() + ext.length() +1);
namePrefix = truncateFilenameBytes(filename, len);
if (namePrefix.empty()) namePrefix = defaultPrefix;
// Truncate the filename to get our new prefix
namePrefix = truncateFilenameBytes(filename, currentPrefixLen);
// Enough space has been reserved for UINT_MAX values
max_val = UINT_MAX;
}
else
{
// Get last extension, and make filename have no extension
filename = osgDB::getNameLessAllExtensions(osgDB::getSimpleFileName(_defaultValue));
if (!isNodeName)
{
ext = truncateFilenameBytes(osgDB::getFileExtensionIncludingDot(_defaultValue), 4); // 4 chars = dot + 3 chars
if (ext == ".") ext = "";
}
// Tests if STRIPPED default name is valid and unique
const std::string strippedName( filename + ext );
if (is3DSName(strippedName, _extendedFilePaths, isNodeName))
{
std::pair<NameMap::iterator, bool> insertion( nameMap.insert(strippedName) );
if (insertion.second) return strippedName; // Return if element is newly inserted in the map (else there is a naming collision)
}
namePrefix = filename;
if (namePrefix.empty()) namePrefix = defaultPrefix;
// Truncate the filename to get our new prefix
namePrefix = truncateFilenameBytes(namePrefix, currentPrefixLen);
// Compute the maximum enumeration value
max_val = static_cast<unsigned int>(pow(10., 8. - namePrefix.length())) -1;
}
assert(namePrefix.size() <= MAX_PREFIX_LENGTH);
// Find the current enumeration value (searchStart)
unsigned int searchStart(0);
PrefixMap::iterator pairPrefix( prefixMap.find(namePrefix) );
if (pairPrefix != prefixMap.end())
{
searchStart = pairPrefix->second;
}
else
{
// Check if truncated name is ok
const std::string res( osgDB::concatPaths(parentPath, namePrefix + ext) );
if (nameMap.find(res) == nameMap.end()) {
prefixMap.insert(std::pair<std::string, unsigned int>(namePrefix, 0));
nameMap.insert(res);
return res;
}
}
// Search for a free value
for(unsigned int i = searchStart; i <= max_val; ++i)
{
std::stringstream ss;
ss << namePrefix << i;
const std::string res( osgDB::concatPaths(parentPath, ss.str() + ext) );
if (nameMap.find(res) == nameMap.end())
{
if (pairPrefix != prefixMap.end())
{
pairPrefix->second = i + 1;
} else
{
prefixMap.insert(std::pair<std::string, unsigned int>(namePrefix, i + 1));
}
nameMap.insert(res);
return res;
}
}
// Failed finding a name
// Try with a shorter prefix if possible
if (currentPrefixLen>1) return getUniqueName(_defaultValue, isNodeName, defaultPrefix, currentPrefixLen-1);
// Try with default prefix if not arleady done
if (defaultPrefix != std::string("_")) return getUniqueName(_defaultValue, isNodeName, "_", 1);
// No more names
OSG_NOTIFY(osg::FATAL) << "No more names available!" << std::endl;
_succeeded = false;
return "ERROR";
}