diff options
| -rw-r--r-- | client.py | 83 | ||||
| -rw-r--r-- | render.py | 4 |
2 files changed, 87 insertions, 0 deletions
@@ -30,6 +30,7 @@ parser.add_option('-r', '--rate', dest='rate', type='int', default=44100, help=' parser.add_option('-V', '--volume', dest='volume', type='float', default=1.0, help='Set the volume factor (>1 distorts, <1 attenuates)') parser.add_option('-n', '--streams', dest='streams', type='int', default=1, help='Set the number of streams this client will play back') parser.add_option('-N', '--numpy', dest='numpy', action='store_true', help='Use numpy acceleration') +parser.add_option('-L', '--lut', dest='lut', type='int', default=0, help='If >0, generate a Look-Up Table with this many samples') parser.add_option('-G', '--gui', dest='gui', default='', help='set a GUI to use') parser.add_option('-c', '--clamp', dest='clamp', action='store_true', help='Clamp over-the-wire amplitudes to 0.0-1.0') parser.add_option('-C', '--chorus', dest='chorus', default=0.0, type='float', help='Apply uniform random offsets (in MIDI pitch space)') @@ -563,6 +564,86 @@ else: out.append(arr[ieffidx] * (1-frac) + arr[ieffidx+1] * frac) return struct.pack(str(amt)+'i', *out) +if options.lut > 0: + try: + rows, columns = map(int, os.popen('stty size', 'r').read().split()) + except Exception: + import traceback + traceback.print_exc() + rows, columns = 25, 80 + print '---- Assuming default terminal size ----' + + def plot_graph(yvs, height=None, width=None): + if height is None: + height = rows / 2 + if width is None: + width = columns + miny, maxy = min(yvs), max(yvs) + nyvs = [height * (i - miny) / (maxy - miny) for i in yvs] + ptcols = [] + lastidx = -1 + for colnum in range(width): + idx = float(colnum) / width * (len(nyvs) - 1) + ipart = int(idx) + fpart = idx - ipart + if lastidx < ipart: + lastidx = ipart + ptcols.append(colnum) + for rownum in reversed(range(height + 1)): + for colnum in range(width): + idx = float(colnum) / width * (len(nyvs) - 1) + ipart = int(idx) + fpart = idx - ipart + if fpart == 0.0: + samp = nyvs[ipart] + else: + samp = lin_interp(nyvs[ipart], nyvs[ipart + 1], fpart) + if samp < rownum + 1 and samp >= rownum: + if colnum in ptcols and len(nyvs) <= 32: + lastidx = ipart + char = 'x' + else: + lsamp = samp - rownum + if 0 <= lsamp < 1.0/4: + char = ',' + elif 1.0/4 <= lsamp < 2.0/4: + char = '.' + elif 2.0/4 <= lsamp < 3.0/4: + char = '-' + else: + char = "'" + else: + char = ' ' + sys.stdout.write(char) + sys.stdout.write('\n') + nextcol = 0 + curcol = 0 + for idx, ptcol in enumerate(ptcols): + if ptcol < nextcol: + continue + spacing = ' ' * (ptcol - curcol) + s = spacing + str(idx) + ' ' + curcol += len(s) + nextcol = curcol + sys.stdout.write(s) + sys.stdout.write('\n') + sys.stdout.flush() + + SAMPLES = [ + generator(float(i) / options.lut * 2 * math.pi) + for i in range(options.lut) + ] + print 'LUT:' + plot_graph(SAMPLES) + + def generator(phase): + idx = phase / (2 * math.pi) * options.lut + ipart = int(idx) + fpart = idx - ipart + begin = SAMPLES[ipart] + end = SAMPLES[0 if ipart == options.lut - 1 else ipart + 1] + return lin_interp(begin, end, fpart) + def gen_data(data, frames, tm, status): global FREQS, PHASE, Z_SAMP, LAST_SAMP, LAST_SAMPLES, QUEUED_PCM, DRIFT_FACTOR, DRIFT_ERROR, CUR_PERIOD, LARTS if len(QUEUED_PCM) >= frames*4: @@ -670,6 +751,8 @@ while True: break elif pkt.cmd == CMD.PLAY: voice = pkt.data[4] + if voice >= STREAMS: + continue dur = pkt.data[0]+pkt.data[1]/1000000.0 freq = pkt.data[2] * options.fmul if options.chorus > 0: @@ -425,6 +425,10 @@ void main(void) { glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA) while not glfw.window_should_close(win): + if not os.path.exists(options.map_file): + glfw.terminate() + exit() + glfw.make_context_current(win) glClear(GL_COLOR_BUFFER_BIT) |