File indexing completed on 2024-04-14 14:10:45

 /*
     SPDX-FileCopyrightText: 2007 James B. Bowlin <bowlin@mindspring.com>
     SPDX-License-Identifier: BSD-3-Clause AND GPL-2.0-or-later
 */
 
 #ifndef MESH_BUFFER_H
 #define MESH_BUFFER_H
 
 #include "typedef.h"
 
 class HTMesh;
 
 /** @class MeshBuffer
  * The sole purpose of a MeshBuffer is to hold storage space
  * for the results of an HTM inetersection and then allow multiple
  * MeshIterator's to walk through the result set.  The buffer space is allocated
  * when the MeshBuffer is created.  Mesh buffers will usually hang around for
  * the life of an HTMesh.  Each mesh buffer is re-usable.  Simply reset() it and
  * then fill it by append()'ing trixels.  A MeshIterator grabs the size() and
  * the buffer() so it can iterate over the results.
  */
 
 class MeshBuffer
 {
   public:
     MeshBuffer(HTMesh *mesh);
 
     ~MeshBuffer();
 
     /** @short prepare the buffer for a new result set
          */
     void reset() { m_size = m_error = 0; }
 
     /** @short add trixels to the buffer
          */
     int append(Trixel trixel);
 
     /** @short the location of the buffer for reading
          */
     const Trixel *buffer() const { return m_buffer; }
 
     /** @short the number of trixels in the result set
          */
     int size() const { return m_size; }
 
     /** @short returns the number of trixels that would have overflowed the
          * buffer.
          */
     int error() const { return m_error; }
 
     /** @short fills the buffer with consecutive integers
          */
     void fill();
 
   private:
     Trixel *m_buffer;
     int m_size;
     int maxSize;
     int m_error;
 };
 
 #endif