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Diffstat (limited to 'src/mesh/assimp-master/code/AssetLib/Q3BSP/Q3BSPFileParser.cpp')
-rw-r--r-- | src/mesh/assimp-master/code/AssetLib/Q3BSP/Q3BSPFileParser.cpp | 272 |
1 files changed, 272 insertions, 0 deletions
diff --git a/src/mesh/assimp-master/code/AssetLib/Q3BSP/Q3BSPFileParser.cpp b/src/mesh/assimp-master/code/AssetLib/Q3BSP/Q3BSPFileParser.cpp new file mode 100644 index 0000000..910da5b --- /dev/null +++ b/src/mesh/assimp-master/code/AssetLib/Q3BSP/Q3BSPFileParser.cpp @@ -0,0 +1,272 @@ +/* +Open Asset Import Library (assimp) +---------------------------------------------------------------------- + +Copyright (c) 2006-2022, assimp team + +All rights reserved. + +Redistribution and use of this software 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 assimp team, nor the names of its + contributors may be used to endorse or promote products + derived from this software without specific prior + written permission of the assimp team. + +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 THE COPYRIGHT +OWNER OR CONTRIBUTORS 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. + +---------------------------------------------------------------------- +*/ + + +#ifndef ASSIMP_BUILD_NO_Q3BSP_IMPORTER + +#include "Q3BSPFileParser.h" +#include "Q3BSPFileData.h" +#include <vector> +#include <assimp/DefaultIOSystem.h> +#include <assimp/ZipArchiveIOSystem.h> +#include <assimp/ai_assert.h> + +namespace Assimp { + +using namespace Q3BSP; + +// ------------------------------------------------------------------------------------------------ +Q3BSPFileParser::Q3BSPFileParser( const std::string &mapName, ZipArchiveIOSystem *pZipArchive ) : + m_sOffset( 0 ), + m_Data(), + m_pModel(nullptr), + m_pZipArchive( pZipArchive ) +{ + ai_assert(nullptr != m_pZipArchive ); + ai_assert( !mapName.empty() ); + + if ( !readData( mapName ) ) + return; + + m_pModel = new Q3BSPModel; + m_pModel->m_ModelName = mapName; + if ( !parseFile() ) { + delete m_pModel; + m_pModel = nullptr; + } +} + +// ------------------------------------------------------------------------------------------------ +Q3BSPFileParser::~Q3BSPFileParser() { + delete m_pModel; +} + +// ------------------------------------------------------------------------------------------------ +Q3BSP::Q3BSPModel *Q3BSPFileParser::getModel() const { + return m_pModel; +} + +// ------------------------------------------------------------------------------------------------ +bool Q3BSPFileParser::readData( const std::string &rMapName ) { + if ( !m_pZipArchive->Exists( rMapName.c_str() ) ) + return false; + + IOStream *pMapFile = m_pZipArchive->Open( rMapName.c_str() ); + if ( nullptr == pMapFile ) + return false; + + const size_t size = pMapFile->FileSize(); + m_Data.resize( size ); + + const size_t readSize = pMapFile->Read( &m_Data[0], sizeof( char ), size ); + if ( readSize != size ) { + m_Data.clear(); + m_pZipArchive->Close(pMapFile); + return false; + } + m_pZipArchive->Close( pMapFile ); + + return true; +} + +// ------------------------------------------------------------------------------------------------ +bool Q3BSPFileParser::parseFile() { + if ( m_Data.empty() ) { + return false; + } + + if ( !validateFormat() ) + { + return false; + } + + // Imports the dictionary of the level + getLumps(); + + // Count data and prepare model data + countLumps(); + + // Read in Vertices + getVertices(); + + // Read in Indices + getIndices(); + + // Read Faces + getFaces(); + + // Read Textures + getTextures(); + + // Read Lightmaps + getLightMaps(); + + // Load the entities + getEntities(); + + return true; +} + +// ------------------------------------------------------------------------------------------------ +bool Q3BSPFileParser::validateFormat() +{ + sQ3BSPHeader *pHeader = (sQ3BSPHeader*) &m_Data[ 0 ]; + m_sOffset += sizeof( sQ3BSPHeader ); + + // Version and identify string validation + if (pHeader->strID[ 0 ] != 'I' || pHeader->strID[ 1 ] != 'B' || pHeader->strID[ 2 ] != 'S' + || pHeader->strID[ 3 ] != 'P') + { + return false; + } + + return true; +} + +// ------------------------------------------------------------------------------------------------ +void Q3BSPFileParser::getLumps() +{ + size_t Offset = m_sOffset; + m_pModel->m_Lumps.resize( kMaxLumps ); + for ( size_t idx=0; idx < kMaxLumps; idx++ ) + { + sQ3BSPLump *pLump = new sQ3BSPLump; + memcpy( pLump, &m_Data[ Offset ], sizeof( sQ3BSPLump ) ); + Offset += sizeof( sQ3BSPLump ); + m_pModel->m_Lumps[ idx ] = pLump; + } +} + +// ------------------------------------------------------------------------------------------------ +void Q3BSPFileParser::countLumps() +{ + m_pModel->m_Vertices.resize( m_pModel->m_Lumps[ kVertices ]->iSize / sizeof( sQ3BSPVertex ) ); + m_pModel->m_Indices.resize( m_pModel->m_Lumps[ kMeshVerts ]->iSize / sizeof( int ) ); + m_pModel->m_Faces.resize( m_pModel->m_Lumps[ kFaces ]->iSize / sizeof( sQ3BSPFace ) ); + m_pModel->m_Textures.resize( m_pModel->m_Lumps[ kTextures ]->iSize / sizeof( sQ3BSPTexture ) ); + m_pModel->m_Lightmaps.resize( m_pModel->m_Lumps[ kLightmaps ]->iSize / sizeof( sQ3BSPLightmap ) ); +} + +// ------------------------------------------------------------------------------------------------ +void Q3BSPFileParser::getVertices() +{ + size_t Offset = m_pModel->m_Lumps[ kVertices ]->iOffset; + for ( size_t idx = 0; idx < m_pModel->m_Vertices.size(); idx++ ) + { + sQ3BSPVertex *pVertex = new sQ3BSPVertex; + memcpy( pVertex, &m_Data[ Offset ], sizeof( sQ3BSPVertex ) ); + Offset += sizeof( sQ3BSPVertex ); + m_pModel->m_Vertices[ idx ] = pVertex; + } +} + +// ------------------------------------------------------------------------------------------------ +void Q3BSPFileParser::getIndices() +{ + ai_assert(nullptr != m_pModel ); + + sQ3BSPLump *lump = m_pModel->m_Lumps[ kMeshVerts ]; + size_t Offset = (size_t) lump->iOffset; + const size_t nIndices = lump->iSize / sizeof( int ); + m_pModel->m_Indices.resize( nIndices ); + memcpy( &m_pModel->m_Indices[ 0 ], &m_Data[ Offset ], lump->iSize ); +} + +// ------------------------------------------------------------------------------------------------ +void Q3BSPFileParser::getFaces() +{ + ai_assert(nullptr != m_pModel ); + + size_t Offset = m_pModel->m_Lumps[ kFaces ]->iOffset; + for ( size_t idx = 0; idx < m_pModel->m_Faces.size(); idx++ ) + { + sQ3BSPFace *pFace = new sQ3BSPFace; + memcpy( pFace, &m_Data[ Offset ], sizeof( sQ3BSPFace ) ); + m_pModel->m_Faces[ idx ] = pFace; + Offset += sizeof( sQ3BSPFace ); + } +} + +// ------------------------------------------------------------------------------------------------ +void Q3BSPFileParser::getTextures() +{ + ai_assert(nullptr != m_pModel ); + + size_t Offset = m_pModel->m_Lumps[ kTextures ]->iOffset; + for ( size_t idx=0; idx < m_pModel->m_Textures.size(); idx++ ) + { + sQ3BSPTexture *pTexture = new sQ3BSPTexture; + memcpy( pTexture, &m_Data[ Offset ], sizeof(sQ3BSPTexture) ); + m_pModel->m_Textures[ idx ] = pTexture; + Offset += sizeof(sQ3BSPTexture); + } +} + +// ------------------------------------------------------------------------------------------------ +void Q3BSPFileParser::getLightMaps() +{ + ai_assert(nullptr != m_pModel ); + + size_t Offset = m_pModel->m_Lumps[kLightmaps]->iOffset; + for ( size_t idx=0; idx < m_pModel->m_Lightmaps.size(); idx++ ) + { + sQ3BSPLightmap *pLightmap = new sQ3BSPLightmap; + memcpy( pLightmap, &m_Data[ Offset ], sizeof( sQ3BSPLightmap ) ); + Offset += sizeof( sQ3BSPLightmap ); + m_pModel->m_Lightmaps[ idx ] = pLightmap; + } +} + +// ------------------------------------------------------------------------------------------------ +void Q3BSPFileParser::getEntities() { + const int size = m_pModel->m_Lumps[ kEntities ]->iSize; + m_pModel->m_EntityData.resize( size ); + if ( size > 0 ) { + size_t Offset = m_pModel->m_Lumps[ kEntities ]->iOffset; + memcpy( &m_pModel->m_EntityData[ 0 ], &m_Data[ Offset ], sizeof( char ) * size ); + } +} + +// ------------------------------------------------------------------------------------------------ + +} // Namespace Assimp + +#endif // ASSIMP_BUILD_NO_Q3BSP_IMPORTER |