From aa656f19d015febb1174c0c91cb1711657280c70 Mon Sep 17 00:00:00 2001
From: Jonas Suhr Christensen <jsc@umbraculum.org>
Date: Wed, 19 Mar 2014 21:11:31 +0100
Subject: Using power defined in xml if any.

---
 src/instrumentparser.cc | 11 ++++++++++-
 src/powerlist.cc        | 20 +++++++++++++-------
 src/sample.cc           |  3 ++-
 src/sample.h            |  3 ++-
 4 files changed, 27 insertions(+), 10 deletions(-)

diff --git a/src/instrumentparser.cc b/src/instrumentparser.cc
index 6580b09..c66608b 100644
--- a/src/instrumentparser.cc
+++ b/src/instrumentparser.cc
@@ -79,7 +79,16 @@ void InstrumentParser::startTag(std::string name,
       DEBUG(instrparser,"Missing required attribute 'name'.\n");
       return;
     }
-    s = new Sample(attr["name"]);
+   
+    float power; 
+    if(attr.find("power") == attr.end()) {
+      power = -1; 
+    } else {
+      power = atof(attr["power"].c_str());  
+      DEBUG(instrparser, "Instrument power set to %f\n", power);
+    }
+    
+    s = new Sample(attr["name"], power);
   }
 
   if(name == "audiofile") {
diff --git a/src/powerlist.cc b/src/powerlist.cc
index 4f02892..cf843a3 100644
--- a/src/powerlist.cc
+++ b/src/powerlist.cc
@@ -168,16 +168,22 @@ void PowerList::finalise()
     master->load();
 
     float power = 0;
-    size_t s = 0;
-    for(; s < SIZE && s < master->size; s++) {
-      power += master->data[s] * master->data[s];
-    }
+    if(sample->power == -1) { // Power not defined. Calculate it!
+      DEBUG(powerlist, "Calculating power\n");
+      size_t s = 0;
+      for(; s < SIZE && s < master->size; s++) {
+        power += master->data[s] * master->data[s];
+      }
     
-    power = sqrt(power);
+      power = sqrt(power);
 
-    if(power > power_max) power_max = power;
+      if(power > power_max) power_max = power;
 
-    item.power = power;
+      item.power = power;
+    } else { // Power defined in xml
+      DEBUG(powerlist, "Using power from xml\n");
+      power = sample->power;
+    }
 
     DEBUG(rand, " - power: %f\n", power);
     
diff --git a/src/sample.cc b/src/sample.cc
index be897c7..d50137d 100644
--- a/src/sample.cc
+++ b/src/sample.cc
@@ -31,9 +31,10 @@
 
 #include <sndfile.h>
 
-Sample::Sample(std::string name)
+Sample::Sample(std::string name, float power)
 {
   this->name = name;
+  this->power = power;
 }
 
 Sample::~Sample()
diff --git a/src/sample.h b/src/sample.h
index cd3e111..61a3468 100644
--- a/src/sample.h
+++ b/src/sample.h
@@ -40,7 +40,7 @@ class Sample {
   friend class InstrumentParser;
   friend class PowerList;
 public:
-  Sample(std::string name);
+  Sample(std::string name, float power);
   ~Sample();
 
   AudioFile *getAudioFile(InstrumentChannel *c);
@@ -49,6 +49,7 @@ private:
   void addAudioFile(InstrumentChannel *c, AudioFile *a);
 
   std::string name;
+  float power;
   AudioFiles audiofiles;
 };
 
-- 
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