Merge remote-tracking branch 'remotes/origin/cairocanvas' into windows

[ardour.git] / libs / ardour / ardour / chan_count.h

diff --git a/libs/ardour/ardour/chan_count.h b/libs/ardour/ardour/chan_count.h
index e4981d11ef2e8cc9c781d8281285dd9526358a8a..03e2fcd8fff58b27685f81710dd188381be959a4 100644 (file)
--- a/libs/ardour/ardour/chan_count.h
+++ b/libs/ardour/ardour/chan_count.h
@@ -1,6 +1,6 @@
 /*
-    Copyright (C) 2006 Paul Davis 
-       Author: Dave Robillard
+    Copyright (C) 2006 Paul Davis
+    Author: David Robillard
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -20,8 +20,15 @@
 #ifndef __ardour_chan_count_h__
 #define __ardour_chan_count_h__
 
-#include <ardour/data_type.h>
 #include <cassert>
+#include <ostream>
+
+#include "pbd/xml++.h"
+#include "ardour/data_type.h"
+
+#ifdef INFINITE
+#undef INFINITE
+#endif
 
 namespace ARDOUR {
 
@@ -33,8 +40,9 @@ namespace ARDOUR {
  */
 class ChanCount {
 public:
+       ChanCount(const XMLNode& node);
        ChanCount() { reset(); }
-       
+
        // Convenience constructor for making single-typed streams (stereo, mono, etc)
        ChanCount(DataType type, uint32_t channels) {
                reset();
@@ -46,16 +54,18 @@ public:
                        _counts[*t] = 0;
                }
        }
-       
+
        void     set(DataType t, uint32_t count) { assert(t != DataType::NIL); _counts[t] = count; }
        uint32_t get(DataType t) const { assert(t != DataType::NIL); return _counts[t]; }
-       
+
+       inline uint32_t n (DataType t) const { return _counts[t]; }
+
        inline uint32_t n_audio() const { return _counts[DataType::AUDIO]; }
        inline void set_audio(uint32_t a) { _counts[DataType::AUDIO] = a; }
-       
+
        inline uint32_t n_midi()  const { return _counts[DataType::MIDI]; }
        inline void set_midi(uint32_t m) { _counts[DataType::MIDI] = m; }
-       
+
        uint32_t n_total() const {
                uint32_t ret = 0;
                for (uint32_t i=0; i < DataType::num_types; ++i)
@@ -71,7 +81,7 @@ public:
 
                return true;
        }
-       
+
        bool operator!=(const ChanCount& other) const {
                return ! (*this == other);
        }
@@ -88,7 +98,7 @@ public:
        bool operator<=(const ChanCount& other) const {
                return ( (*this < other) || (*this == other) );
        }
-       
+
        bool operator>(const ChanCount& other) const {
                for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
                        if (_counts[*t] < other._counts[*t]) {
@@ -102,6 +112,39 @@ public:
                return ( (*this > other) || (*this == other) );
        }
 
+       ChanCount operator+(const ChanCount& other) const {
+               ChanCount ret;
+               for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
+                       ret.set(*t, get(*t) + other.get(*t));
+               }
+               return ret;
+       }
+
+       ChanCount& operator+=(const ChanCount& other) {
+               for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
+                       _counts[*t] += other._counts[*t];
+               }
+               return *this;
+       }
+
+       static ChanCount min(const ChanCount& a, const ChanCount& b) {
+               ChanCount ret;
+               for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
+                       ret.set(*t, std::min(a.get(*t), b.get(*t)));
+               }
+               return ret;
+       }
+
+       static ChanCount max(const ChanCount& a, const ChanCount& b) {
+               ChanCount ret;
+               for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
+                       ret.set(*t, std::max(a.get(*t), b.get(*t)));
+               }
+               return ret;
+       }
+
+       XMLNode* state(const std::string& name) const;
+
        static const ChanCount INFINITE;
        static const ChanCount ZERO;
 
@@ -109,8 +152,9 @@ private:
        uint32_t _counts[DataType::num_types];
 };
 
-
 } // namespace ARDOUR
 
+std::ostream& operator<<(std::ostream& o, const ARDOUR::ChanCount& c);
+
 #endif // __ardour_chan_count_h__