130 lines
4.8 KiB
C++
130 lines
4.8 KiB
C++
// lowlevel.hxx -- routines to handle lowlevel compressed binary IO of
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// various datatypes
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//
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// Shamelessly adapted from plib January 2001
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//
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// Original version Copyright (C) 2000 the plib team
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// Local changes Copyright (C) 2000 Curtis L. Olson - http://www.flightgear.org/~curt
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//
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// This program 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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//
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// This program 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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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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// $Id$
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//
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#ifndef _SG_LOWLEVEL_HXX
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#define _SG_LOWLEVEL_HXX
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#include <stdio.h>
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#include <zlib.h>
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#include <simgear/compiler.h>
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#include <simgear/misc/stdint.hxx>
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#include <simgear/math/SGMath.hxx>
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// Note that output is written in little endian form (and converted as
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// necessary for big endian machines)
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void sgReadChar ( gzFile fd, char *var ) ;
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void sgWriteChar ( gzFile fd, const char var ) ;
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void sgReadFloat ( gzFile fd, float *var ) ;
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void sgWriteFloat ( gzFile fd, const float var ) ;
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void sgReadDouble ( gzFile fd, double *var ) ;
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void sgWriteDouble ( gzFile fd, const double var ) ;
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void sgReadUInt ( gzFile fd, unsigned int *var ) ;
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void sgWriteUInt ( gzFile fd, const unsigned int var ) ;
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void sgReadInt ( gzFile fd, int *var ) ;
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void sgWriteInt ( gzFile fd, const int var ) ;
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void sgReadLong ( gzFile fd, int32_t *var ) ;
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void sgWriteLong ( gzFile fd, const int32_t var ) ;
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void sgReadLongLong ( gzFile fd, int64_t *var ) ;
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void sgWriteLongLong ( gzFile fd, const int64_t var ) ;
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void sgReadUShort ( gzFile fd, unsigned short *var ) ;
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void sgWriteUShort ( gzFile fd, const unsigned short var ) ;
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void sgReadShort ( gzFile fd, short *var ) ;
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void sgWriteShort ( gzFile fd, const short var ) ;
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void sgReadFloat ( gzFile fd, const unsigned int n, float *var ) ;
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void sgWriteFloat ( gzFile fd, const unsigned int n, const float *var ) ;
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void sgReadDouble ( gzFile fd, const unsigned int n, double *var ) ;
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void sgWriteDouble ( gzFile fd, const unsigned int n, const double *var ) ;
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void sgReadUInt ( gzFile fd, const unsigned int n, unsigned int *var ) ;
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void sgWriteUInt ( gzFile fd, const unsigned int n, const unsigned int *var ) ;
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void sgReadInt ( gzFile fd, const unsigned int n, int *var ) ;
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void sgWriteInt ( gzFile fd, const unsigned int n, const int *var ) ;
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void sgReadUShort ( gzFile fd, const unsigned int n, unsigned short *var ) ;
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void sgWriteUShort ( gzFile fd, const unsigned int n, const unsigned short *var ) ;
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void sgReadShort ( gzFile fd, const unsigned int n, short *var ) ;
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void sgWriteShort ( gzFile fd, const unsigned int n, const short *var ) ;
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void sgReadBytes ( gzFile fd, const unsigned int n, void *var ) ;
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void sgWriteBytes ( gzFile fd, const unsigned int n, const void *var ) ;
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void sgReadString ( gzFile fd, char **var ) ;
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void sgWriteString ( gzFile fd, const char *var ) ;
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inline void sgReadVec2 ( gzFile fd, SGVec2f& var ) {
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sgReadFloat ( fd, 2, var.data() ) ;
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}
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inline void sgWriteVec2 ( gzFile fd, const SGVec2f& var ) {
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sgWriteFloat ( fd, 2, var.data() ) ;
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}
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inline void sgReadVec3 ( gzFile fd, SGVec3f& var ) {
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sgReadFloat ( fd, 3, var.data() ) ;
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}
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inline void sgWriteVec3 ( gzFile fd, const SGVec3f& var ) {
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sgWriteFloat ( fd, 3, var.data() ) ;
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}
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inline void sgReaddVec3 ( gzFile fd, SGVec3d& var ) {
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sgReadDouble ( fd, 3, var.data() ) ;
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}
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inline void sgWritedVec3 ( gzFile fd, const SGVec3d& var ) {
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sgWriteDouble ( fd, 3, var.data() ) ;
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}
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inline void sgReadVec4 ( gzFile fd, SGVec4f& var ) {
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sgReadFloat ( fd, 4, var.data() ) ;
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}
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inline void sgWriteVec4 ( gzFile fd, const SGVec4f& var ) {
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sgWriteFloat ( fd, 4, var.data() ) ;
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}
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inline void sgReadMat4 ( gzFile fd, SGMatrixf& var ) {
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sgReadFloat ( fd, 16, (float *)var.data() ) ;
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}
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inline void sgWriteMat4 ( gzFile fd, const SGMatrixf& var ) {
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sgWriteFloat ( fd, 16, (float *)var.data() ) ;
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}
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inline void sgReadGeod ( gzFile fd, SGGeod& var ) {
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double data[3];
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sgReadDouble ( fd, 3, data );
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var = SGGeod::fromDegM( data[0], data[1], data[2] );
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}
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inline void sgWriteGeod ( gzFile fd, const SGGeod& var ) {
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sgWriteDouble( fd, var.getLongitudeDeg() );
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sgWriteDouble( fd, var.getLatitudeDeg() );
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sgWriteDouble( fd, var.getElevationM() );
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}
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void sgClearReadError();
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void sgClearWriteError();
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int sgReadError();
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int sgWriteError();
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#endif // _SG_LOWLEVEL_HXX
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