source/immediate.cpp

   1 /* $Id$
   2
   3 This file is part of libmspgl
   4 Copyright © 2007  Mikko Rasa, Mikkosoft Productions
   5 Distributed under the LGPL
   6 */
   7
   8 #include "batch.h"
   9 #include "immediate.h"
  10
  11 namespace Msp {
  12 namespace GL {
  13
  14 Immediate::Immediate(VertexFormat f):
  15         PrimitiveBuilder(array),
  16         array(f)
  17 {
  18         array.use_vertex_buffer(0);
  19 }
  20
  21 void Immediate::reset()
  22 {
  23         if(in_batch)
  24                 throw InvalidState("Can't reset Immediate between begin() and end()");
  25
  26         array.clear();
  27 }
  28
  29 void Immediate::begin_()
  30 {
  31         indices.clear();
  32 }
  33
  34 void Immediate::end_()
  35 {
  36         Batch batch(type);
  37         batch.append(indices);
  38         array.apply();
  39         batch.draw();
  40 }
  41
  42 void Immediate::element_(unsigned i)
  43 {
  44         indices.push_back(i);
  45 }
  46
  47 } // namespace GL
  48 } // namespace Msp