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Fix bugs in parsing script, output C++ code for instrument programs extracted.

This commit is contained in:
bruce 2013-09-15 00:07:21 +08:00
parent f2c8ea55d8
commit 755c24b3ca
2 changed files with 81 additions and 25 deletions
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3
.gitignore vendored
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@ -1,2 +1,3 @@
Builds
JuceLibraryCode
JuceLibraryCode
*.txt

103
py/oplparse.py
View File

@ -54,14 +54,15 @@ def interpret_00(reg, val, ev):
def interpret_20(reg, val, ev):
ch, op = reg_to_chan_and_op(reg)
ev[2]['ch'] = ch
bitfields = {7: 'AM', 6: 'vib', 5: 'sus', 4:'ksr'}
bitfields = {7: 'tre', 6: 'vib', 5: 'sus', 4:'ksr'}
bf = val & 0xf0
opts = []
for b, opt in bitfields.iteritems():
optset = 'X' if (bf & (0x1 << b)) else '-'
opts.append('%s:%s' % (opt, optset))
ev[op-1][opt]=optset
fm_mult = val & 0x0f
mults = {0:0.5, 0xb:0xa, 0xd:0xc, 0xf:0xe}
mults = {0:0.5, 11:10, 13:12, 14:15}
fm_mult = mults.get(fm_mult, fm_mult)
opts.append('fm_mult:x%d' % (fm_mult))
ev[op-1]['fm_mult'] = fm_mult
@ -74,16 +75,18 @@ def interpret_40(reg, val, ev):
ch, op = reg_to_chan_and_op(reg)
ev[2]['ch'] = ch
bit_db = {5:24, 4:12, 3:6, 2:3, 1:1.5, 0:0.75}
oct_db = {0:0, 0x40:3, 0x80:1.5, 0xC0:6}
lvl = 0
oct_db = {0:0, 0x40:1.5, 0x80:3, 0xC0:6}
lvl = 0.0
for b, db in bit_db.iteritems():
if (val & (0x1 << b)):
lvl += db
oct_scale = '-%d dB/8ve' % oct_db[val & 0xC0]
db_oct = oct_db[val & 0xC0]
oct_scale = '-%d dB/8ve' % db_oct
factor = _db_atten_to_factor(lvl)
ev[op-1]['db'] = lvl
ev[op-1]['db_oct'] = db_oct
ev[op-1]['scale'] = factor
print '%d dB; (x%.4f) %s' % (lvl, factor, oct_scale) ,
print '%.2f dB; (x%.4f) %s' % (lvl, factor, oct_scale) ,
def interpret_60(reg, val, ev):
ch, op = reg_to_chan_and_op(reg)
@ -111,6 +114,10 @@ def interpret_A0(reg, val, ev):
def interpret_B0(reg, val, ev):
global freq_lsb
try:
freq_lsb
except NameError:
freq_lsb = 0
oct = (val >> 2) & 0x7
fnum = ((val & 0x3) << 8) + freq_lsb
chan = 1 + reg % 0xB0
@ -149,6 +156,8 @@ def interpret_BD(reg, val, ev):
def interpret_C0(reg, val, ev):
alg = 'ADD' if val & 0x1 else 'MODULATE'
feedback = (val >> 1) & 0xc
ev[2]['alg'] = alg
ev[2]['feedback'] = feedback
print 'feedback: %d algo: %s' % (feedback, alg) ,
def interpret_E0(reg, val, ev):
@ -238,23 +247,24 @@ def get_javascript_for(event):
return indent + indent.join(lines)
def find_unique_instruments(events, js_filename):
def find_unique_instruments(events):
instruments = dict()
ilist = list()
timestamps = events.keys()
timestamps.sort()
js_out = open(js_filename, 'wb')
with js_out:
js_out.write('song = function(sch, opl2) {\n')
for t in timestamps:
js_out.write(' sch.addAbsolute(%d, function() {\n' % t)
js_out.write(' console.log(%d);\n' % t)
js_out.write(get_javascript_for(events[t]))
js_out.write(' });\n')
instr_json = json.dumps(events[t])
if instr_json not in instruments:
instruments[instr_json] = t
js_out.write('};\n')
return instruments
for t in timestamps:
ev = events[t]
try: # get rid of fields which don't define uniqueness
del ev[2]['key']
del ev[2]['ch']
del ev[1]['frq']
except KeyError:
pass
instr_json = json.dumps(ev, indent=2)
if instr_json not in instruments:
instruments[instr_json] = t
ilist.append(instr_json)
return ilist, instruments
def print_instrument(json_i, ts):
print
@ -268,12 +278,57 @@ def print_instrument(json_i, ts):
print 'Envelopes: %1x %1x %1x %1x %1x %1x %1x %1x' % envs
except KeyError:
print 'incomplete instrument?'
# Conversions mapping to VST floating point values
W2F = {'SIN':0, 'HALFSIN':.33, 'ABSSIN':.66, 'QUARTSIN':1}
def m2f(mult):
if mult < 1: # half frq
return 0
else:
return float(mult)/15.0
def a2f(att_db):
a = float(att_db)/0.75
return a/63.0
def b2f(bool_param):
if 'X' == bool_param:
return 1.0
else:
return 0.0
D2F = {0:0.0,1.5:0.33,3.0:0.66,6.0:1.0}
def e2f(env_val):
return float(env_val)/15.0
def output_instrument_vst_program(json_i, ts):
try:
d = json.loads(json_i)
m=d[0]; c=d[1]
print
print ' const float i_params_%d[] = {' % ts
print ' %.6ff, %.6ff, // waveforms' % (W2F[c['wav']], W2F[m['wav']])
print ' %.6ff, %.6ff, // frq multipliers' % (m2f(c['fm_mult']), m2f(m['fm_mult']))
print ' %.6ff, %.6ff, // attenuation' % (a2f(c['db']), a2f(m['db']))
print ' %.1ff, %.1ff, %.1ff, %.1ff, // tre / vib / sus / ks' % tuple([b2f(c[x]) for x in ['tre', 'vib', 'sus', 'ksr']])
print ' %.1ff, %.1ff, %.1ff, %.1ff, // tre / vib / sus / ks' % tuple([b2f(m[x]) for x in ['tre', 'vib', 'sus', 'ksr']])
print ' %.6ff, %.6ff, // KSR/8ve' % (D2F[c['db_oct']], D2F[m['db_oct']])
print ' %.6ff, // feedback' % (float(d[2]['feedback'])/7.0)
print ' %.1ff, %.1ff, %.1ff, %.1ff, // adsr' % tuple([e2f(c[x]) for x in ['a', 'd', 's', 'r']])
print ' %.1ff, %.1ff, %.1ff, %.1ff, // adsr' % tuple([e2f(m[x]) for x in ['a', 'd', 's', 'r']])
print ' };'
print ' std::vector<float> v_i_params_%d (i_params_%d, i_params_%d + sizeof(i_params_%d) / sizeof(float));' % (ts,ts,ts,ts)
print ' programs["Instr %d"] = std::vector<float>(v_i_params_%d);' % (ts, ts)
except KeyError:
print 'incomplete instrument?'
def main(argv):
events = parse_opldump(sys.stdin)
instruments = find_unique_instruments(events, argv[1])
for i in instruments:
print_instrument(i, instruments[i])
ilist, instruments = find_unique_instruments(events)
for i in ilist:
output_instrument_vst_program(i, instruments[i])
#print i, instruments[i]
#print_instrument(i, instruments[i])
if '__main__' == __name__:
main(sys.argv)