From 3d95a25600b5cab8a7e5245b7a581bd8c8939276 Mon Sep 17 00:00:00 2001
From: Florian Jung <flo@thinkpad.(none)>
Date: Wed, 5 Jan 2011 15:47:55 +0100
Subject: Note-compiler is _mostly_ complete; plus some tiny bugfixes

The note-compiler can read a program-definition and emits a cpp-file
which implements that definition. This implementation is optimized.
HOWEVER, the compiler still does not emit a set_param() function. this
will lead to a linker error because the function is not implemented
(but defined). After adding an empty implementation by hand the emitted
compiles well, and also seems to work when used in the synth.

TODO:
 - implement set_param()
 - compiler must emit a loader-function (which returns a new Note)
 - use that loader function in the synth
---
 note_compiler/parser.cpp | 41 ++++++++++++++++++++++++++++++++++++++---
 1 file changed, 38 insertions(+), 3 deletions(-)

(limited to 'note_compiler/parser.cpp')

diff --git a/note_compiler/parser.cpp b/note_compiler/parser.cpp
index 98c65ac..3f142bd 100644
--- a/note_compiler/parser.cpp
+++ b/note_compiler/parser.cpp
@@ -37,6 +37,8 @@ void init_oscs(int n_osc, oscillator_t *osc)
 		osc[i].vibrato_lfo=0;
 		osc[i].vibrato_lfo_const=true;
 		osc[i].have_custom_wave=false;
+		osc[i].sync=false;
+		osc[i].sync_const=true;
 	}
 }
 
@@ -44,11 +46,12 @@ void init_envs(int n_osc, env_settings_t *env)
 {
 	for (int i=0;i<n_osc;i++)
 	{
+		env[i].enabled=true;
 		env[i].attack=0;
 		env[i].attack_const=true;
 		env[i].decay=0;
 		env[i].decay_const=true;
-		env[i].sustain=ONE;
+		env[i].sustain=1.0;
 		env[i].sustain_const=true;
 		env[i].release=0;
 		env[i].release_const=true;
@@ -118,9 +121,11 @@ program_t parse(string fn)
 	oscillator_t *osc=NULL;
 	env_settings_t *env=NULL;
 	filter_params_t filter;
-	fixed_t sync_factor;
+	fixed_t sync_factor=0;
 	bool sync_factor_const=true;
 	
+	bool use_pfactor=false;
+	
 	char buf[2000];
 	string line;
 	string var;
@@ -351,6 +356,7 @@ program_t parse(string fn)
 								default: // other params than the above may not be influenced!
 									throw string("velocity cannot influence parameter '"+array+"'");
 							}
+							use_pfactor=true;
 						}
 						
 
@@ -432,13 +438,42 @@ program_t parse(string fn)
 			}
 		}
 		
+		
+		//some optimizations
+		
+		for (int i=0;i<n_osc;i++)
+			if ((env[i].attack==0) && (env[i].sustain==1.0)
+			      && (env[i].release>100))  //TODO FINDMICH besseres kriterium?
+				env[i].enabled=false;
+		
+		if (  ((filter.env_settings.attack==0) && (filter.env_settings.sustain==1.0)
+		        && (filter.env_settings.release>100)) //TODO FINDMICH siehe oben
+		   || ((filter.env_amount==0) && (filter.env_amount_const==true))  )
+		  filter.env_settings.enabled=false;
+		
+		bool use_sync=false;
+		for (int i=0;i<n_osc;i++)
+			if ((osc[i].sync==true) || (osc[i].sync_const==false))
+			{
+				use_sync=true;
+				break;
+			}
+		
+		if (!use_sync)
+		{
+			sync_factor=0;
+			sync_factor_const=true;
+		}
+		
+		//end optimizations
+		
 		result.n_osc=n_osc;
 		result.osc=osc;
 		result.env=env;
 		result.filter=filter;
 		result.sync_factor=sync_factor;
 		result.sync_factor_const=sync_factor_const;
-		
+		result.use_pfactor=use_pfactor;
 	}
 	else
 		throw string ("could not open '"+fn+"'");
-- 
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