Move library tree where it belongs

lib-src/libnyquist/nyquist/tran/osc.alg

@@ -0,0 +1,31 @@
+(OSC-ALG
+(NAME "osc")
+(ARGUMENTS ("sound_type" "input") ("double" "step") ("rate_type" "sr")
+       ("double" "hz") ("time_type" "t0") ("time_type" "d")
+       ("double" "phase"))
+(TABLE "input")
+(NOT-IN-INNER-LOOP "input")
+(STATE 
+       ("double" "ph_incr" "0")
+       ("table_type" "the_table" "sound_to_table(input)")
+       ("sample_type *" "table_ptr" "susp->the_table->samples")
+       ("double" "table_len" "susp->the_table->length")
+       ("double" "phase" "compute_phase(phase, step, (long) susp->table_len,
+    input->sr, sr, hz, &susp->ph_incr)") )
+;	"((hz * susp->table_len) / sr)")
+(TERMINATE (AFTER "d"))
+(INNER-LOOP "
+        long table_index = (long) phase;
+        double x1 = table_ptr[table_index];
+        output = (sample_type) (x1 + (phase - table_index) * 
+              (table_ptr[table_index + 1] - x1));
+        phase += ph_incr;
+        while (phase >= table_len) phase -= table_len;
+")
+(CONSTANT "ph_incr" "table_len" "table_ptr")
+
+(SAMPLE-RATE "sr")
+(FINALIZATION "    table_unref(susp->the_table);
+")
+)
+