src/lib/bgl.cpp

//
// AutoCoast: Automatic Coastline scenery generator for Flight Simulator
//
// Copyright (c) 2004, Takuya Murakami. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
//
// 2. 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.
//
// 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 REGENTS 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.

// bgl.cc : BGL base classes

#include <stdio.h>
#include <string.h>
#include <math.h>

#include "bgl.hpp"
#include "bbox.hpp"

//////////////////////////////////////////////////////////////////
// DataChunk

DataChunk::DataChunk()
{
        databuf = new DataBuf;
}

DataChunk::~DataChunk()
{
        delete databuf;
}

void DataChunk::WriteDataChunk(FILE *fp)
{
        fwrite(databuf->data(), databuf->size(), 1, fp);
}


/////////////////////////////////////////////////////////////////
// Bgl

Bgl::Bgl()
{
        fp = NULL;
}

Bgl::~Bgl()
{
        if (fp) {
                fclose(fp);
        }
}

void Bgl::OpenFile(const char *fname)
{
        fp = fopen(fname, "wb");
        if (!fp) {
                fprintf(stderr, "Can't create file: %s\n", fname);
                exit(1);
        }
}

void Bgl::UpdateBoundingBox(BoundingBox &bb)
{
        bbox.extend(&bb);
}

void Bgl::WriteBGLHeader(const char *LWMHeaderLabel, const char *VTPHeaderLabel)
{
        fprintf(fp, ";-------------------------------------------------------------\n");
        fprintf(fp, "; This file is created with AutoCoast automatically.\n");
        fprintf(fp, "; Do not modify me.\n");
        fprintf(fp, ";-------------------------------------------------------------\n");
        fprintf(fp, "\n");
        fprintf(fp, "include TDFMacros.inc\n");
        fprintf(fp, "include TDFHeaders.inc\n");
        fprintf(fp, "\n");

        fprintf(fp, "BGLHeader %d, %d, %d, %d, %s, %s\n\n", 
               int(ceil(bbox.ymax)),
               int(floor(bbox.ymin)),
               int(ceil(bbox.xmax)),
               int(floor(bbox.xmin)),
               (LWMHeaderLabel != NULL) ? LWMHeaderLabel : "TerrainHeaderStart",
               (VTPHeaderLabel != NULL) ? VTPHeaderLabel : "TerrainHeaderStart"
                );

}