src/sourcegroup.h

   1 #ifndef SOURCEGROUP_H
   2 #define SOURCEGROUP_H
   3
   4 #include "main.h"
   5
   6
   7 namespace alure
   8 {
   9
  10 class ContextImpl;
  11 class SourceImpl;
  12
  13 struct SourceGroupProps {
  14     ALfloat mGain;
  15     ALfloat mPitch;
  16
  17     SourceGroupProps() : mGain(1.0f), mPitch(1.0f) { }
  18 };
  19
  20 class SourceGroupImpl : SourceGroupProps {
  21     ContextImpl *const mContext;
  22
  23     Vector<SourceImpl*> mSources;
  24     Vector<SourceGroupImpl*> mSubGroups;
  25
  26     SourceGroupProps mParentProps;
  27     SourceGroupImpl *mParent;
  28
  29     const String mName;
  30
  31     void applyPropTree(SourceGroupProps &props) const
  32     {
  33         props.mGain *= mGain;
  34         props.mPitch *= mPitch;
  35         if(mParent)
  36             mParent->applyPropTree(props);
  37     }
  38
  39     void update(ALfloat gain, ALfloat pitch);
  40
  41     void setParentGroup(SourceGroupImpl *group);
  42     void unsetParentGroup();
  43
  44     void eraseSubGroup(SourceGroupImpl *group);
  45
  46     bool findInSubGroups(SourceGroupImpl *group) const;
  47
  48     void collectPlayingSourceIds(Vector<ALuint> &sourceids) const;
  49     void updatePausedStatus() const;
  50
  51     void collectPausedSourceIds(Vector<ALuint> &sourceids) const;
  52     void updatePlayingStatus() const;
  53
  54     void collectSourceIds(Vector<ALuint> &sourceids) const;
  55     void updateStoppedStatus() const;
  56
  57 public:
  58     SourceGroupImpl(ContextImpl *context, String name)
  59       : mContext(context), mParent(nullptr), mName(std::move(name))
  60     { }
  61
  62     ALfloat getAppliedGain() const { return mGain * mParentProps.mGain; }
  63     ALfloat getAppliedPitch() const { return mPitch * mParentProps.mPitch; }
  64
  65     void addSource(Source source);
  66     void removeSource(Source source);
  67
  68     void addSources(ArrayView<Source> sources);
  69     void removeSources(ArrayView<Source> sources);
  70
  71     void addSubGroup(SourceGroup group);
  72     void removeSubGroup(SourceGroup group);
  73
  74     Vector<Source> getSources() const;
  75
  76     Vector<SourceGroup> getSubGroups() const;
  77
  78     void setGain(ALfloat gain);
  79     ALfloat getGain() const { return mGain; }
  80
  81     void setPitch(ALfloat pitch);
  82     ALfloat getPitch() const { return mPitch; }
  83
  84     void pauseAll() const;
  85     void resumeAll() const;
  86
  87     void stopAll() const;
  88
  89     const String &getName() const { return mName; }
  90
  91     void release();
  92 };
  93
  94 } // namespace alure2
  95
  96 #endif /* SOURCEGROUP_H */