83 lines
2.6 KiB
C++
83 lines
2.6 KiB
C++
/* -------------------------------------------------------------------------------
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Copyright (C) 1999-2007 id Software, Inc. and contributors.
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For a list of contributors, see the accompanying CONTRIBUTORS file.
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This file is part of GtkRadiant.
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GtkRadiant is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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GtkRadiant is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GtkRadiant; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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----------------------------------------------------------------------------------
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This code has been altered significantly from its original form, to support
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several games based on the Quake III Arena engine, in the form of "Q3Map2."
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------------------------------------------------------------------------------- */
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#pragma once
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/* dependencies */
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#include "q3map2.h"
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/*
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AddLump()
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adds a lump to an outgoing bsp file
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*/
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template<typename T>
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void AddLump( FILE *file, bspLump_t& lump, const std::vector<T>& data ){
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const int length = sizeof( T ) * data.size();
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/* add lump to bsp file header */
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lump.offset = LittleLong( ftell( file ) );
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lump.length = LittleLong( length );
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/* write lump to file */
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SafeWrite( file, data.data(), length );
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/* write padding zeros */
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SafeWrite( file, std::array<byte, 3>{}.data(), ( ( length + 3 ) & ~3 ) - length );
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}
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/*
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CopyLump()
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copies a bsp file lump into a destination buffer
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*/
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template<typename DstT, typename SrcT = DstT>
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void CopyLump( bspHeader_t *header, int lump, std::vector<DstT>& data ){
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/* get lump length and offset */
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const int length = header->lumps[ lump ].length;
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const int offset = header->lumps[ lump ].offset;
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/* handle erroneous cases */
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if ( length <= 0 ) {
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data.clear();
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return;
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}
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if ( length % sizeof( SrcT ) ) {
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if ( force ) {
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Sys_Warning( "CopyLump: odd lump size (%d) in lump %d\n", length, lump );
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data.clear();
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return;
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}
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else{
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Error( "CopyLump: odd lump size (%d) in lump %d", length, lump );
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}
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}
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/* copy block of memory and return */
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data = { ( SrcT* )( (byte*) header + offset ), ( SrcT* )( (byte*) header + offset + length ) };
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}
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