# HG changeset patch
# User Robert McIntyre <rlm@mit.edu>
# Date 1319203293 25200
# Node ID c3248c71ae746bb00bd21e6bf24bbaf2101c81bb
# Parent  2ad543b339f113dff6e6db615b802a403c4e6446
begin convert program

diff -r 2ad543b339f1 -r c3248c71ae74 .hgignore
--- a/.hgignore	Fri Oct 21 06:03:53 2011 -0700
+++ b/.hgignore	Fri Oct 21 06:21:33 2011 -0700
@@ -1,2 +1,4 @@
 syntax : glob
 build*
+
+test-files*
diff -r 2ad543b339f1 -r c3248c71ae74 Makefile
--- a/Makefile	Fri Oct 21 06:03:53 2011 -0700
+++ b/Makefile	Fri Oct 21 06:21:33 2011 -0700
@@ -1,7 +1,22 @@
 
 
 
-all : snes_core
+all : build/spc_convert
+
+build/spc_convert : snes_core demo_utils build/spc_convert.o
+	g++ build/*.o -o build/spc_convert
+
+build/spc_convert.o : convert/spc_convert.c
+	g++ -I . -c convert/spc_convert.c -o build/spc_convert.o
+
+
+demo_utils : build/demo_util.o build/wave_writer.o
+
+build/demo_util.o : demo/demo_util.c
+	g++ -c demo/demo_util.c -o build/demo_util.o
+
+build/wave_writer.o : demo/wave_writer.c
+	g++ -c demo/wave_writer.c -o build/wave_writer.o
 
 
 snes_core : build/dsp.o build/SNES_SPC.o build/SNES_SPC_misc.o \
diff -r 2ad543b339f1 -r c3248c71ae74 convert/spc_convert.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/convert/spc_convert.c	Fri Oct 21 06:21:33 2011 -0700
@@ -0,0 +1,57 @@
+/* Records SPC into wave file. Uses dsp_filter to give more authentic sound.
+
+   Usage: play_spc [-s seconds] input.spc output.wav
+*/
+
+#include "snes_spc/spc.h"
+
+#include "demo/wave_writer.h"
+#include "demo/demo_util.h" /* error(), load_file() */
+
+int main( int argc, char** argv )
+{
+  /* Create emulator and filter */
+  SNES_SPC* snes_spc = spc_new();
+  SPC_Filter* filter = spc_filter_new();
+  if ( !snes_spc || !filter ) error( "Out of memory" );
+	
+  /* Load SPC */
+  {
+    /* Load file into memory */
+    long spc_size;
+    void* spc = load_file( (argc > 1) ? argv [1] : "test.spc", &spc_size );
+		
+    /* Load SPC data into emulator */
+    error( spc_load_spc( snes_spc, spc, spc_size ) );
+    free( spc ); /* emulator makes copy of data */
+		
+    /* Most SPC files have garbage data in the echo buffer, so clear that */
+    spc_clear_echo( snes_spc );
+		
+    /* Clear filter before playing */
+    spc_filter_clear( filter );
+  }
+	
+  /* Record 20 seconds to wave file */
+  wave_open( spc_sample_rate, "out.wav" );
+  wave_enable_stereo();
+  while ( wave_sample_count() < 20 * spc_sample_rate * 2 )
+    {
+      /* Play into buffer */
+#define BUF_SIZE 2048
+      short buf [BUF_SIZE];
+      error( spc_play( snes_spc, BUF_SIZE, buf ) );
+		
+      /* Filter samples */
+      spc_filter_run( filter, buf, BUF_SIZE );
+		
+      wave_write( buf, BUF_SIZE );
+    }
+	
+  /* Cleanup */
+  spc_filter_delete( filter );
+  spc_delete( snes_spc );
+  wave_close();
+	
+  return 0;
+}