From b4f38189495303ece14a23342ccb4d28793f6a45 Mon Sep 17 00:00:00 2001 From: Robert Osfield Date: Fri, 3 Sep 2010 09:10:27 +0000 Subject: [PATCH] Removed now redundent Font3D files --- src/osgPlugins/freetype/CMakeLists.txt | 8 +- src/osgPlugins/freetype/FreeTypeFont3D.cpp | 533 --------------------- src/osgPlugins/freetype/FreeTypeFont3D.h | 58 --- src/osgText/Font3D.cpp | 315 ------------ 4 files changed, 6 insertions(+), 908 deletions(-) delete mode 100644 src/osgPlugins/freetype/FreeTypeFont3D.cpp delete mode 100644 src/osgPlugins/freetype/FreeTypeFont3D.h delete mode 100644 src/osgText/Font3D.cpp diff --git a/src/osgPlugins/freetype/CMakeLists.txt b/src/osgPlugins/freetype/CMakeLists.txt index 24436fee5..0151bf1ee 100644 --- a/src/osgPlugins/freetype/CMakeLists.txt +++ b/src/osgPlugins/freetype/CMakeLists.txt @@ -11,10 +11,14 @@ ENDIF() SET(TARGET_SRC FreeTypeFont.cpp FreeTypeLibrary.cpp - ReaderWriterFreeType.cpp ) + ReaderWriterFreeType.cpp +) + SET(TARGET_H FreeTypeFont.h - FreeTypeLibrary.h ) + FreeTypeLibrary.h +) + SET(TARGET_ADDED_LIBRARIES osgText ) SET(TARGET_LIBRARIES_VARS FREETYPE_LIBRARY ) #### end var setup ### diff --git a/src/osgPlugins/freetype/FreeTypeFont3D.cpp b/src/osgPlugins/freetype/FreeTypeFont3D.cpp deleted file mode 100644 index cf9967d79..000000000 --- a/src/osgPlugins/freetype/FreeTypeFont3D.cpp +++ /dev/null @@ -1,533 +0,0 @@ -/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield - * - * This library is open source and may be redistributed and/or modified under - * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or - * (at your option) any later version. The full license is in LICENSE file - * included with this distribution, and on the openscenegraph.org website. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * OpenSceneGraph Public License for more details. -*/ - -#include "FreeTypeFont3D.h" -#include "FreeTypeLibrary.h" - -#include -#include - - -#include -#include - - -#include -#include -#include -#include -#include - - -#include - -namespace -{ - -struct Char3DInfo -{ - Char3DInfo(int numSteps): - _verts( new osg::Vec3Array ), - _geometry( new osg::Geometry ), - _idx(0), - _numSteps(numSteps), - _maxY(-FLT_MAX), - _maxX(-FLT_MAX), - _minX(FLT_MAX), - _minY(FLT_MAX) - { - } - ~Char3DInfo() - { - } - - osg::Geometry* get() - { - int len = _verts->size()-_idx; - if (len) - { - _geometry->addPrimitiveSet( new osg::DrawArrays( osg::PrimitiveSet::POLYGON, _idx, len ) ); - _idx = _verts->size(); - } - - _geometry->setVertexArray(_verts.get()); - return _geometry.get(); - } - - void addVertex(const osg::Vec3& pos) - { - if (!_verts->empty() && _verts->back()==pos) - { - // OSG_NOTICE<<"addVertex("<push_back( pos ); - setMinMax(pos); - } - - void moveTo(const osg::Vec2& pos) - { - if (_verts->size()) - { - int len = _verts->size()-_idx; - _geometry->addPrimitiveSet( new osg::DrawArrays( osg::PrimitiveSet::POLYGON, _idx, len ) ); - } - _idx = _verts->size(); - addVertex( osg::Vec3(pos.x(),pos.y(),0) ); - - } - void lineTo(const osg::Vec2& pos) - { - addVertex( osg::Vec3(pos.x(),pos.y(),0) ); - } - void conicTo(const osg::Vec2& control, const osg::Vec2& pos) - { - osg::Vec3 p0 = _verts->back(); - osg::Vec3 p1 = osg::Vec3(control.x(),control.y(),0); - osg::Vec3 p2 = osg::Vec3(pos.x(),pos.y(),0); - - double dt = 1.0/_numSteps; - double u=0; - for (int i=0; i<=_numSteps; ++i) - { - double w = 1; - double bs = 1.0/( (1-u)*(1-u)+2*(1-u)*u*w +u*u ); - osg::Vec3 p = (p0*((1-u)*(1-u)) + p1*(2*(1-u)*u*w) + p2*(u*u))*bs; - addVertex( p ); - - u += dt; - } - } - - void cubicTo(const osg::Vec2& control1, const osg::Vec2& control2, const osg::Vec2& pos) - { - osg::Vec3 p0 = _verts->back(); - osg::Vec3 p1 = osg::Vec3(control1.x(),control1.y(),0); - osg::Vec3 p2 = osg::Vec3(control2.x(),control2.y(),0); - osg::Vec3 p3 = osg::Vec3(pos.x(),pos.y(),0); - - double cx = 3*(p1.x() - p0.x()); - double bx = 3*(p2.x() - p1.x()) - cx; - double ax = p3.x() - p0.x() - cx - bx; - double cy = 3*(p1.y() - p0.y()); - double by = 3*(p2.y() - p1.y()) - cy; - double ay = p3.y() - p0.y() - cy - by; - - double dt = 1.0/_numSteps; - double u=0; - for (int i=0; i<=_numSteps; ++i) - { - osg::Vec3 p = osg::Vec3( ax*u*u*u + bx*u*u + cx*u + p0.x(),ay*u*u*u + by*u*u + cy*u + p0.y(),0 ); - addVertex( p ); - - u += dt; - } - } - - void setMinMax(const osg::Vec3& pos) - { - _maxY = std::max(_maxY, (double) pos.y()); - _minY = std::min(_minY, (double) pos.y()); - _maxX = std::max(_maxX, (double) pos.x()); - _minX = std::min(_minX, (double) pos.x()); - } - - osg::ref_ptr _verts; - osg::ref_ptr _geometry; - int _idx; - int _numSteps; - double _maxY; - double _maxX; - double _minX; - double _minY; -}; - - -#define FT_NUM(x) (x/64.0) -int moveTo( const FT_Vector* to, void* user ) -{ - Char3DInfo* char3d = (Char3DInfo*)user; - char3d->moveTo( osg::Vec2(FT_NUM(to->x),FT_NUM(to->y)) ); - return 0; -} -int lineTo( const FT_Vector* to, void* user ) -{ - Char3DInfo* char3d = (Char3DInfo*)user; - char3d->lineTo( osg::Vec2(FT_NUM(to->x),FT_NUM(to->y)) ); - return 0; -} -int conicTo( const FT_Vector* control,const FT_Vector* to, void* user ) -{ - Char3DInfo* char3d = (Char3DInfo*)user; - char3d->conicTo( osg::Vec2(FT_NUM(control->x),FT_NUM(control->y)), osg::Vec2(FT_NUM(to->x),FT_NUM(to->y)) ); - return 0; -} -int cubicTo( const FT_Vector* control1,const FT_Vector* control2,const FT_Vector* to, void* user ) -{ - Char3DInfo* char3d = (Char3DInfo*)user; - char3d->cubicTo( - osg::Vec2(FT_NUM(control1->x),FT_NUM(control1->y)), - osg::Vec2(FT_NUM(control2->x),FT_NUM(control2->y)), - osg::Vec2(FT_NUM(to->x),FT_NUM(to->y)) ); - return 0; -} -#undef FT_NUM - -} - - -FreeTypeFont3D::FreeTypeFont3D(const std::string& filename, FT_Face face, unsigned int flags): - _filename(filename), - _buffer(0), - _face(face), - _flags(flags), - _scale(1.0) -{ - init(); -} - -FreeTypeFont3D::FreeTypeFont3D(FT_Byte* buffer, FT_Face face, unsigned int flags): - _filename(""), - _buffer(buffer), - _face(face), - _flags(flags), - _scale(1.0) -{ - init(); -} - -void FreeTypeFont3D::init() -{ - - FT_Error _error = FT_Set_Pixel_Sizes(_face, 32, 32); - if (_error) - { - OSG_NOTICE << "FreeTypeFont3D: set pixel sizes failed ..." << std::endl; - return; - } - - FT_Set_Char_Size( _face, 64*64, 64*64, 600, 600); - - int glyphIndex = FT_Get_Char_Index( _face, 'M' ); - _error = FT_Load_Glyph( _face, glyphIndex, FT_LOAD_DEFAULT ); - if (_error) - { - OSG_NOTICE << "FreeTypeFont3D: initial glyph load failed ..." << std::endl; - return; - } - - if (_face->glyph->format != FT_GLYPH_FORMAT_OUTLINE) - { - OSG_NOTICE << "FreeTypeFont3D: not a vector font" << std::endl; - return; - } - - { - Char3DInfo char3d(10); - - FT_Outline outline = _face->glyph->outline; - FT_Outline_Funcs funcs; - funcs.conic_to = (FT_Outline_ConicToFunc)&conicTo; - funcs.line_to = (FT_Outline_LineToFunc)&lineTo; - funcs.cubic_to = (FT_Outline_CubicToFunc)&cubicTo; - funcs.move_to = (FT_Outline_MoveToFunc)&moveTo; - funcs.shift = 0; - funcs.delta = 0; - _error = FT_Outline_Decompose(&outline,&funcs,&char3d); - if (_error) - { - OSG_NOTICE << "FreeTypeFont3D: - outline decompose failed ..." << std::endl; - return; - } - - FT_BBox bb; - FT_Outline_Get_BBox(&outline,&bb); - - long ymin = ft_floor( bb.yMin ); - long ymax = ft_ceiling( bb.yMax ); - double height = double(ymax - ymin)/64.0; - - // long xmin = ft_floor( bb.xMin ); - // long xmax = ft_ceiling( bb.xMax ); - // double width = (xmax - xmin)/64.0; - - _scale = 1.0/height; - } -} - -FreeTypeFont3D::~FreeTypeFont3D() -{ - if(_face) - { - FreeTypeLibrary* freeTypeLibrary = FreeTypeLibrary::instance(); - if (freeTypeLibrary) - { - // remove myself from the local registry to ensure that - // not dangling pointers remain - freeTypeLibrary->removeFont3DImplmentation(this); - - // free the freetype font face itself - FT_Done_Face(_face); - _face = 0; - - // release memory held for FT_Face to work - if (_buffer) - { - delete [] _buffer; - _buffer = 0; - } - } - } -} - - -osgText::Glyph3D * FreeTypeFont3D::getGlyph(unsigned int charcode) -{ - OpenThreads::ScopedLock lock(FreeTypeLibrary::instance()->getMutex()); - - // - // GT: fix for symbol fonts (i.e. the Webdings font) as the wrong character are being - // returned, for symbol fonts in windows (FT_ENCONDING_MS_SYMBOL in freetype) the correct - // values are from 0xF000 to 0xF0FF not from 0x000 to 0x00FF (0 to 255) as you would expect. - // Microsoft uses a private field for its symbol fonts - // - unsigned int charindex = charcode; - if (_face->charmap != NULL) - { - if (_face->charmap->encoding == FT_ENCODING_MS_SYMBOL) - { - charindex |= 0xF000; - } - } - - FT_Error error = FT_Load_Char( _face, charindex, FT_LOAD_DEFAULT|_flags ); - if (error) - { - OSG_WARN << "FT_Load_Char(...) error 0x"<glyph->format != FT_GLYPH_FORMAT_OUTLINE) - { - OSG_WARN << "FreeTypeFont3D::getGlyph : not a vector font" << std::endl; - return 0; - } - - // ** init FreeType to describe the glyph - Char3DInfo char3d(_facade->getNumberCurveSamples()); - - FT_Outline outline = _face->glyph->outline; - FT_Outline_Funcs funcs; - funcs.conic_to = (FT_Outline_ConicToFunc)&conicTo; - funcs.line_to = (FT_Outline_LineToFunc)&lineTo; - funcs.cubic_to = (FT_Outline_CubicToFunc)&cubicTo; - funcs.move_to = (FT_Outline_MoveToFunc)&moveTo; - funcs.shift = 0; - funcs.delta = 0; - - // ** record description - FT_Error _error = FT_Outline_Decompose(&outline, &funcs, &char3d); - if (_error) - { - OSG_WARN << "FreeTypeFont3D::getGlyph : - outline decompose failed ..." << std::endl; - return 0; - } - - // ** create geometry for each part of the glyph - osg::ref_ptr frontGeo(new osg::Geometry); - - osg::ref_ptr rawVertices = new osg::Vec3Array(*(char3d._verts)); - osg::Geometry::PrimitiveSetList rawPrimitives; - for(osg::Geometry::PrimitiveSetList::iterator itr = char3d.get()->getPrimitiveSetList().begin(); - itr != char3d.get()->getPrimitiveSetList().end(); - ++itr) - { - rawPrimitives.push_back(dynamic_cast((*itr)->clone(osg::CopyOp::DEEP_COPY_ALL))); - } - - frontGeo->setVertexArray(char3d.get()->getVertexArray()); - frontGeo->setPrimitiveSetList(char3d.get()->getPrimitiveSetList()); - - osg::ref_ptr wallGeo(new osg::Geometry); - wallGeo->setVertexArray(frontGeo->getVertexArray()); - - osg::ref_ptr backGeo(new osg::Geometry); - backGeo->setVertexArray(frontGeo->getVertexArray()); - - - - // ** for convenience. - osg::Vec3Array * vertices = char3d._verts.get(); - - - - // ** duplicate the vertex for the back face - // ** with a depth equal to the font depth - std::size_t len = vertices->size(); - std::size_t dlen = len * 2; - - vertices->reserve(dlen); - - osg::Vec3Array::iterator begin = vertices->begin(); - osg::Vec3Array::iterator it = vertices->begin(); - - for (std::size_t i = 0; i != len; ++i, ++it) - vertices->push_back(*it); -// std::copy(begin, begin + len, begin + len + 1); TOCHECK - - - // ** and decal new vertices - unsigned int depth = _facade->getFontDepth(); - for (std::size_t i = len; i != dlen; ++i) - { - (*vertices)[i].z() -= depth; - } - - osg::Vec3Array::iterator end; - - // ** create wall and back face from the front polygon - // ** then accumulate them in the appropriate geometry wallGeo and backGeo - for (std::size_t i=0; i < frontGeo->getNumPrimitiveSets(); ++i) - { - // ** get the front polygon - osg::ref_ptr daFront(dynamic_cast(frontGeo->getPrimitiveSet(i))); - unsigned int idx = daFront->getFirst(); - unsigned int cnt = daFront->getCount(); - - // ** reverse vertices to draw the front face in the CCW - std::reverse(begin + idx, begin + idx + cnt); - - // ** create the back polygon - osg::ref_ptr daBack(new osg::DrawArrays(osg::PrimitiveSet::POLYGON, idx + len, cnt)); - backGeo->addPrimitiveSet(daBack.get()); - - - // ** create the wall triangle strip - osg::ref_ptr deWall(new osg::DrawElementsUInt(osg::PrimitiveSet::TRIANGLE_STRIP)); - wallGeo->addPrimitiveSet(deWall.get()); - - // ** link triangle strip - deWall->push_back(idx + len); - for (unsigned int j = 1; j < cnt; ++j) - { - deWall->push_back(idx + cnt - j); - deWall->push_back(idx + len + j); - } - deWall->push_back(idx); - deWall->push_back(idx + len); - deWall->push_back(idx + cnt - 1); - } - - // ** tesselate front and back face - { - osgUtil::Tessellator ts; - ts.setWindingType(osgUtil::Tessellator::TESS_WINDING_POSITIVE); - ts.setTessellationType(osgUtil::Tessellator::TESS_TYPE_GEOMETRY); - ts.retessellatePolygons(*frontGeo); - } - - { - osgUtil::Tessellator ts; - ts.setWindingType(osgUtil::Tessellator::TESS_WINDING_POSITIVE); - ts.setTessellationType(osgUtil::Tessellator::TESS_TYPE_GEOMETRY); - ts.retessellatePolygons(*backGeo); - } - - // ** generate normal - { - osgUtil::SmoothingVisitor sm; - osg::ref_ptr geode(new osg::Geode); - geode->addDrawable(wallGeo.get()); - geode->accept(sm); - } - - // ** save vertices and PrimitiveSetList of each face in the Glyph3D PrimitiveSet face list - osgText::Glyph3D * glyph3D = new osgText::Glyph3D(charcode); - - // copy the raw primitive set list before we tessellate it. - glyph3D->getRawFacePrimitiveSetList() = rawPrimitives; - glyph3D->setRawVertexArray(rawVertices.get()); - - glyph3D->setVertexArray(dynamic_cast(frontGeo->getVertexArray())); - glyph3D->setNormalArray(dynamic_cast(wallGeo->getNormalArray())); - - glyph3D->getFrontPrimitiveSetList() = frontGeo->getPrimitiveSetList(); - glyph3D->getWallPrimitiveSetList() = wallGeo->getPrimitiveSetList(); - glyph3D->getBackPrimitiveSetList() = backGeo->getPrimitiveSetList(); - - - FT_Glyph_Metrics* metrics = &(_face->glyph->metrics); - - glyph3D->setHorizontalBearing(osg::Vec2((float)metrics->horiBearingX/64.0f,(float)(metrics->horiBearingY-metrics->height)/64.0f)); // bottom left. - glyph3D->setHorizontalAdvance((float)metrics->horiAdvance/64.0f); - glyph3D->setVerticalBearing(osg::Vec2((float)metrics->vertBearingX/64.0f,(float)(metrics->vertBearingY-metrics->height)/64.0f)); // top middle. - glyph3D->setVerticalAdvance((float)metrics->vertAdvance/64.0f); - - glyph3D->setWidth((float)metrics->width / 64.0f); - glyph3D->setHeight((float)metrics->height / 64.0f); - - - FT_BBox ftbb; - FT_Outline_Get_BBox(&outline, &ftbb); - - long xmin = ft_floor( ftbb.xMin ); - long xmax = ft_ceiling( ftbb.xMax ); - long ymin = ft_floor( ftbb.yMin ); - long ymax = ft_ceiling( ftbb.yMax ); - - osg::BoundingBox bb(xmin / 64.0f, ymin / 64.0f, 0.0f, xmax / 64.0f, ymax / 64.0f, 0.0f); - - glyph3D->setBoundingBox(bb); - - return glyph3D; -} - -osg::Vec2 FreeTypeFont3D::getKerning(unsigned int leftcharcode,unsigned int rightcharcode, osgText::KerningType kerningType) -{ - OpenThreads::ScopedLock lock(FreeTypeLibrary::instance()->getMutex()); - - if (!FT_HAS_KERNING(_face) || (kerningType == osgText::KERNING_NONE)) return osg::Vec2(0.0f,0.0f); - - FT_Kerning_Mode mode = (kerningType==osgText::KERNING_DEFAULT) ? ft_kerning_default : ft_kerning_unfitted; - - // convert character code to glyph index - FT_UInt left = FT_Get_Char_Index( _face, leftcharcode ); - FT_UInt right = FT_Get_Char_Index( _face, rightcharcode ); - - // get the kerning distances. - FT_Vector kerning; - - FT_Error error = FT_Get_Kerning( _face, // handle to face object - left, // left glyph index - right, // right glyph index - mode, // kerning mode - &kerning ); // target vector - - if (error) - { - OSG_WARN << "FT_Get_Kerning(...) returned error code " < - -#include -#include FT_FREETYPE_H - -class FreeTypeFont3D : public osgText::Font3D::Font3DImplementation -{ -// declare the interface to a font. -public: - - FreeTypeFont3D(const std::string& filename, FT_Face face, unsigned int flags); - FreeTypeFont3D(FT_Byte* buffer, FT_Face face, unsigned int flags); - - virtual std::string getFileName() const { return _filename; } - - virtual osgText::Glyph3D * getGlyph(unsigned int charcode); - - virtual osg::Vec2 getKerning(unsigned int leftcharcode,unsigned int rightcharcode, osgText::KerningType _kerningType); - - virtual bool hasVertical() const; - - virtual float getScale() const; - -protected: - - void init(); - - long ft_round( long x ) { return (( x + 32 ) & -64); } - long ft_floor( long x ) { return (x & -64); } - long ft_ceiling( long x ){ return (( x + 63 ) & -64); } - - virtual ~FreeTypeFont3D(); - - std::string _filename; - FT_Byte* _buffer; - FT_Face _face; - unsigned int _flags; - - double _scale; -}; - -#endif diff --git a/src/osgText/Font3D.cpp b/src/osgText/Font3D.cpp deleted file mode 100644 index 30915df49..000000000 --- a/src/osgText/Font3D.cpp +++ /dev/null @@ -1,315 +0,0 @@ -/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield - * - * This library is open source and may be redistributed and/or modified under - * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or - * (at your option) any later version. The full license is in LICENSE file - * included with this distribution, and on the openscenegraph.org website. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * OpenSceneGraph Public License for more details. -*/ - - - -#include -#include - -//#include -#include -//#include - -#include -#include -#include -//#include - -#include - - -using namespace std; - -//static osg::ApplicationUsageProxy Font3D_e0(osg::ApplicationUsage::ENVIRONMENTAL_VARIABLE,"OSG_TEXT3D_INCREMENTAL_SUBLOADING ","ON | OFF"); - -static OpenThreads::ReentrantMutex s_Font3DFileMutex; - -namespace osgText -{ - -std::string findFont3DFile(const std::string& str) -{ - // try looking in OSGFILEPATH etc first for fonts. - std::string filename = osgDB::findDataFile(str); - if (!filename.empty()) return filename; - - OpenThreads::ScopedLock lock(s_Font3DFileMutex); - - static osgDB::FilePathList s_FontFilePath; - static bool initialized = false; - if (!initialized) - { - initialized = true; - #if defined(WIN32) - osgDB::convertStringPathIntoFilePathList( - ".;C:/winnt/fonts;C:/windows/fonts", - s_FontFilePath); - - char *ptr; - if ((ptr = getenv( "windir" ))) - { - std::string winFontPath = ptr; - winFontPath += "\\fonts"; - s_FontFilePath.push_back(winFontPath); - } - #else - osgDB::convertStringPathIntoFilePathList( - ".:/usr/share/fonts/ttf:/usr/share/fonts/ttf/western:/usr/share/fonts/ttf/decoratives", - s_FontFilePath); - #endif - } - - filename = osgDB::findFileInPath(str,s_FontFilePath); - if (!filename.empty()) return filename; - - // Try filename without pathname, if it has a path - filename = osgDB::getSimpleFileName(str); - if(filename!=str) - { - filename = osgDB::findFileInPath(filename,s_FontFilePath); - if (!filename.empty()) return filename; - } - else - { - filename = osgText::findFont3DFile(std::string("fonts/")+filename); - if (!filename.empty()) return filename; - } - - // Not found, return empty string - OSG_WARN<<"Warning: font file \""< lock(s_Font3DFileMutex); - - osg::ref_ptr localOptions; - if (!userOptions) - { - localOptions = new osgDB::ReaderWriter::Options; - localOptions->setObjectCacheHint(osgDB::ReaderWriter::Options::CACHE_OBJECTS); - } - - osg::Object* object = osgDB::readObjectFile(foundFile, userOptions ? userOptions : localOptions.get()); - - // if the object is a font then return it. - osgText::Font3D* font3D = dynamic_cast(object); - if (font3D) return font3D; - - // otherwise if the object has zero references then delete it by doing another unref(). - if (object && object->referenceCount()==0) object->unref(); - return 0; -} - -osgText::Font3D* readFont3DStream(std::istream& stream, const osgDB::ReaderWriter::Options* userOptions) -{ - OpenThreads::ScopedLock lock(s_Font3DFileMutex); - - osg::ref_ptr localOptions; - if (!userOptions) - { - localOptions = new osgDB::ReaderWriter::Options; - localOptions->setObjectCacheHint(osgDB::ReaderWriter::Options::CACHE_OBJECTS); - localOptions->setPluginData("3D", (void*) 1); - } - else - { - userOptions->setPluginData("3D", (void*) 1); - } - - // there should be a better way to get the FreeType ReaderWriter by name... - osgDB::ReaderWriter *reader = osgDB::Registry::instance()->getReaderWriterForExtension("ttf"); - if (reader == 0) return 0; - - osgDB::ReaderWriter::ReadResult rr = reader->readObject(stream, userOptions ? userOptions : localOptions.get()); - if (rr.error()) - { - OSG_WARN << rr.message() << std::endl; - return 0; - } - if (!rr.validObject()) return 0; - - osg::Object *object = rr.takeObject(); - - // if the object is a font then return it. - osgText::Font3D* font3D = dynamic_cast(object); - if (font3D) return font3D; - - // otherwise if the object has zero references then delete it by doing another unref(). - if (object && object->referenceCount()==0) object->unref(); - return 0; -} - -osg::ref_ptr readRefFont3DFile(const std::string& filename, const osgDB::ReaderWriter::Options* userOptions) -{ - if (filename=="") return 0; - - std::string tmpFilename; - std::string text3dExt = ".text3d"; - std::string ext = osgDB::getFileExtensionIncludingDot(filename); - if (ext == text3dExt) - tmpFilename = filename.substr(0, filename.size() - ext.size()); - else - tmpFilename = filename; - - std::string foundFile = findFont3DFile(tmpFilename); - if (foundFile.empty()) return 0; - - foundFile += text3dExt; - - OpenThreads::ScopedLock lock(s_Font3DFileMutex); - - osg::ref_ptr localOptions; - if (!userOptions) - { - localOptions = new osgDB::ReaderWriter::Options; - localOptions->setObjectCacheHint(osgDB::ReaderWriter::Options::CACHE_OBJECTS); - } - - osg::ref_ptr object = osgDB::readRefObjectFile(foundFile, userOptions ? userOptions : localOptions.get()); - - // if the object is a font then return it. - osgText::Font3D* font3D = dynamic_cast(object.get()); - if (font3D) return osg::ref_ptr(font3D); - - return 0; -} - -osg::ref_ptr readRefFont3DStream(std::istream& stream, const osgDB::ReaderWriter::Options* userOptions) -{ - OpenThreads::ScopedLock lock(s_Font3DFileMutex); - - osg::ref_ptr localOptions; - if (!userOptions) - { - localOptions = new osgDB::ReaderWriter::Options; - localOptions->setObjectCacheHint(osgDB::ReaderWriter::Options::CACHE_OBJECTS); - localOptions->setPluginData("3D", (void*) 1); - } - else - { - userOptions->setPluginData("3D", (void*) 1); - } - - // there should be a better way to get the FreeType ReaderWriter by name... - osgDB::ReaderWriter *reader = osgDB::Registry::instance()->getReaderWriterForExtension("ttf"); - if (reader == 0) return 0; - - osgDB::ReaderWriter::ReadResult rr = reader->readObject(stream, userOptions ? userOptions : localOptions.get()); - if (rr.error()) - { - OSG_WARN << rr.message() << std::endl; - return 0; - } - if (!rr.validObject()) return 0; - - // if the object is a font then return it. - osgText::Font3D* font3D = dynamic_cast(rr.getObject()); - if (font3D) return osg::ref_ptr(font3D); - - return 0; -} - -Font3D::Font3D(Font3DImplementation* implementation): - osg::Object(true), - _depth(1), - _width(64), - _height(64), - _numCurveSamples(10) -{ - setImplementation(implementation); -} - -Font3D::~Font3D() -{ - if (_implementation.valid()) _implementation->_facade = 0; -} - -void Font3D::setImplementation(Font3DImplementation* implementation) -{ - if (_implementation.valid()) _implementation->_facade = 0; - _implementation = implementation; - if (_implementation.valid()) _implementation->_facade = this; -} - -Font3D::Font3DImplementation* Font3D::getImplementation() -{ - return _implementation.get(); -} - -const Font3D::Font3DImplementation* Font3D::getImplementation() const -{ - return _implementation.get(); -} - -std::string Font3D::getFileName() const -{ - if (_implementation.valid()) return _implementation->getFileName(); - return ""; -} - -Glyph3D* Font3D::getGlyph(unsigned int charcode) -{ - Glyph3D * glyph3D = NULL; - - Glyph3DMap::iterator itr = _glyph3DMap.find(charcode); - if (itr!=_glyph3DMap.end()) glyph3D = itr->second.get(); - - else if (_implementation.valid()) - { - glyph3D = _implementation->getGlyph(charcode); - if (glyph3D) _glyph3DMap[charcode] = glyph3D; - } - - return glyph3D; -} - -void Font3D::setThreadSafeRefUnref(bool threadSafe) -{ - Glyph3DMap::iterator it,end = _glyph3DMap.end(); - - for (it=_glyph3DMap.begin(); it!=end; ++it) - it->second->setThreadSafeRefUnref(threadSafe); -} - -osg::Vec2 Font3D::getKerning(unsigned int leftcharcode,unsigned int rightcharcode, KerningType kerningType) -{ - if (_implementation.valid()) return _implementation->getKerning(leftcharcode,rightcharcode,kerningType); - else return osg::Vec2(0.0f,0.0f); -} -bool Font3D::hasVertical() const -{ - if (_implementation.valid()) return _implementation->hasVertical(); - else return false; -} - -}