SkeletonAudioBackend.h

   1 /*
   2  *  SkeletonAudioBackend.h
   3  *  openc2e
   4  *
   5  *  Created by Bryan Donlan on Sun Aug 12 2007.
   6  *  Copyright (c) 2007 Bryan Donlan. All rights reserved.
   7  *
   8  *  This library is free software; you can redistribute it and/or
   9  *  modify it under the terms of the GNU Lesser General Public
  10  *  License as published by the Free Software Foundation; either
  11  *  version 2 of the License, or (at your option) any later version.
  12  *
  13  *  This library is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  *  Lesser General Public License for more details.
  17  *
  18  */
  19
  20 #ifndef SKELETONAUDIOBACKEND_H
  21 #define SKELETONAUDIOBACKEND_H 1
  22
  23 #include "AudioBackend.h"
  24
  25 /* This header exists to provide a skeleton implementation for new
  26  * audio backends. Normally client code should not include it.
  27  */
  28
  29 class SkeletonAudioBuffer : public AudioBuffer {
  30 protected:
  31         int refcnt;
  32         SkeletonAudioBuffer() { refcnt = 0; }
  33         friend class NullBackend;
  34         void add_ref() { refcnt++; }
  35         void del_ref() { assert(refcnt); refcnt--; if (!refcnt) delete this; }
  36 };
  37
  38 class SkeletonAudioSource : public AudioSource {
  39 protected:
  40         AudioClip clip;
  41         /* we don't track state here because, well, the clips don't support
  42          * length values yet.
  43          */
  44         bool looping, muted;
  45         float x, y, z, volume;
  46         SkeletonAudioSource() { looping = false; muted = false; volume = 1.0f; }
  47
  48 public:
  49         AudioClip getClip() { return clip; }
  50         void setClip(AudioClip &ac) {
  51                 assert(getState() == SS_STOP);
  52                 clip = ac;
  53         }
  54         SourceState getState() {
  55                 return SS_STOP;
  56         }
  57         void play() { assert(clip); }
  58         void stop() { }
  59         void pause() { }
  60         void fadeOut() { }
  61         void setPos(float x_, float y_, float z_) { x = x_; y = y_; z = z_; }
  62         void getPos(float &x_, float &y_, float &z_) { x_ = x; y_ = y; z_ = z; }
  63         void setVelocity(float, float) { }
  64         bool isLooping() { return looping; }
  65         void setLooping(bool l) { looping = l; }
  66         void setVolume(float v) { volume = v; }
  67         float getVolume() { return volume; }
  68         bool isMuted() { return muted; }
  69         void setMute(bool m) { muted = m; }
  70 };
  71
  72 #endif
  73
  74 /* vim: set noet: */