// ------------------------------------------------------------------- void ObjFileParser::parseFile() { if (m_DataIt == m_DataItEnd) return; while (m_DataIt != m_DataItEnd) { switch (*m_DataIt) { case 'v': // Parse a vertex texture coordinate { ++m_DataIt; if (*m_DataIt == ' ') { // Read in vertex definition getVector3(m_pModel->m_Vertices); } else if (*m_DataIt == 't') { // Read in texture coordinate (2D) ++m_DataIt; getVector2(m_pModel->m_TextureCoord); } else if (*m_DataIt == 'n') { // Read in normal vector definition ++m_DataIt; getVector3( m_pModel->m_Normals ); } } break; case 'f': // Parse a face { getFace(); } break; case '#': // Parse a comment { getComment(); } break; case 'u': // Parse a material desc. setter { getMaterialDesc(); } break; case 'm': // Parse a material library { getMaterialLib(); } break; case 'g': // Parse group name { getGroupName(); } break; case 's': // Parse group number { getGroupNumber(); } break; case 'o': // Parse object name { getObjectName(); } break; default: { m_DataIt = skipLine<DataArrayIt>( m_DataIt, m_DataItEnd, m_uiLine ); } break; } } }
// ------------------------------------------------------------------- // File parsing method. void ObjFileParser::parseFile() { if (m_DataIt == m_DataItEnd) return; while (m_DataIt != m_DataItEnd) { switch (*m_DataIt) { case 'v': // Parse a vertex texture coordinate { ++m_DataIt; if (*m_DataIt == ' ' || *m_DataIt == '\t') { // read in vertex definition getVector3(m_pModel->m_Vertices); } else if (*m_DataIt == 't') { // read in texture coordinate ( 2D or 3D ) ++m_DataIt; getVector( m_pModel->m_TextureCoord ); } else if (*m_DataIt == 'n') { // Read in normal vector definition ++m_DataIt; getVector3( m_pModel->m_Normals ); } } break; case 'p': // Parse a face, line or point statement case 'l': case 'f': { getFace(*m_DataIt == 'f' ? aiPrimitiveType_POLYGON : (*m_DataIt == 'l' ? aiPrimitiveType_LINE : aiPrimitiveType_POINT)); } break; case '#': // Parse a comment { getComment(); } break; case 'u': // Parse a material desc. setter { getMaterialDesc(); } break; case 'm': // Parse a material library or merging group ('mg') { if (*(m_DataIt + 1) == 'g') getGroupNumberAndResolution(); else getMaterialLib(); } break; case 'g': // Parse group name { getGroupName(); } break; case 's': // Parse group number { getGroupNumber(); } break; case 'o': // Parse object name { getObjectName(); } break; default: { m_DataIt = skipLine<DataArrayIt>( m_DataIt, m_DataItEnd, m_uiLine ); } break; } } }
// ------------------------------------------------------------------- // File parsing method. void ObjFileParser::parseFile() { if (m_DataIt == m_DataItEnd) return; // only update every 100KB or it'll be too slow const unsigned int updateProgressEveryBytes = 100 * 1024; unsigned int progressCounter = 0; const unsigned int bytesToProcess = std::distance(m_DataIt, m_DataItEnd); const unsigned int progressTotal = 3 * bytesToProcess; const unsigned int progressOffset = bytesToProcess; unsigned int processed = 0; DataArrayIt lastDataIt = m_DataIt; while (m_DataIt != m_DataItEnd) { // Handle progress reporting processed += std::distance(lastDataIt, m_DataIt); lastDataIt = m_DataIt; if (processed > (progressCounter * updateProgressEveryBytes)) { progressCounter++; m_progress->UpdateFileRead(progressOffset + processed*2, progressTotal); } // parse line switch (*m_DataIt) { case 'v': // Parse a vertex texture coordinate { ++m_DataIt; if (*m_DataIt == ' ' || *m_DataIt == '\t') { size_t numComponents = getNumComponentsInLine(); if (numComponents == 3) { // read in vertex definition getVector3(m_pModel->m_Vertices); } else if (numComponents == 6) { // read vertex and vertex-color getTwoVectors3(m_pModel->m_Vertices, m_pModel->m_VertexColors); } } else if (*m_DataIt == 't') { // read in texture coordinate ( 2D or 3D ) ++m_DataIt; getVector( m_pModel->m_TextureCoord ); } else if (*m_DataIt == 'n') { // Read in normal vector definition ++m_DataIt; getVector3( m_pModel->m_Normals ); } } break; case 'p': // Parse a face, line or point statement case 'l': case 'f': { getFace(*m_DataIt == 'f' ? aiPrimitiveType_POLYGON : (*m_DataIt == 'l' ? aiPrimitiveType_LINE : aiPrimitiveType_POINT)); } break; case '#': // Parse a comment { getComment(); } break; case 'u': // Parse a material desc. setter { getMaterialDesc(); } break; case 'm': // Parse a material library or merging group ('mg') { if (*(m_DataIt + 1) == 'g') getGroupNumberAndResolution(); else getMaterialLib(); } break; case 'g': // Parse group name { getGroupName(); } break; case 's': // Parse group number { getGroupNumber(); } break; case 'o': // Parse object name { getObjectName(); } break; default: { m_DataIt = skipLine<DataArrayIt>( m_DataIt, m_DataItEnd, m_uiLine ); } break; } } }