src/client/GLEXT/GLDynamicVertexArray.h

   1 ////////////////////////////////////////////////////////////////////////////////
   2 //    Scorched3D (c) 2000-2004
   3 //
   4 //    This file is part of Scorched3D.
   5 //
   6 //    Scorched3D is free software; you can redistribute it and/or modify
   7 //    it under the terms of the GNU General Public License as published by
   8 //    the Free Software Foundation; either version 2 of the License, or
   9 //    (at your option) any later version.
  10 //
  11 //    Scorched3D is distributed in the hope that it will be useful,
  12 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 //    GNU General Public License for more details.
  15 //
  16 //    You should have received a copy of the GNU General Public License
  17 //    along with Scorched3D; if not, write to the Free Software
  18 //    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19 ////////////////////////////////////////////////////////////////////////////////
  20
  21 #if !defined(__INCLUDE_GLDynamicVertexArrayh_INCLUDE__)
  22 #define __INCLUDE_GLDynamicVertexArrayh_INCLUDE__
  23
  24 #include <GLEXT/GLState.h>
  25 #include <GLEXT/GLStateExtension.h>
  26 #include <common/DefinesAssert.h>
  27
  28 class GLDynamicVertexArray
  29 {
  30 public:
  31         static GLDynamicVertexArray *instance()
  32         {
  33                 if (!instance_) instance_ = new GLDynamicVertexArray;
  34                 return instance_;
  35         }
  36
  37         struct Data
  38         {
  39                 float x, y, z;
  40                 float nx, ny, nz;
  41                 float t1x, t1y;
  42                 float t2x, t2y;
  43         };
  44
  45         int getSpace() { return capacity_ - used_; }
  46         int getUsed() { return used_; }
  47
  48         Data *getData()
  49         {
  50                 Data *c = current_;
  51                 current_++;
  52                 used_++;
  53                 return c;
  54         }
  55
  56         void drawROAM();
  57         void reset();
  58
  59 protected:
  60         static GLDynamicVertexArray *instance_;
  61         Data *array_;
  62         int used_;
  63         Data *current_;
  64         int capacity_;
  65
  66 private:
  67         GLDynamicVertexArray();
  68         virtual ~GLDynamicVertexArray();
  69 };
  70
  71 #endif // __INCLUDE_GLDynamicVertexArrayh_INCLUDE__