diff options
Diffstat (limited to 'src/devices/sound/cdp1864.cpp')
-rw-r--r-- | src/devices/sound/cdp1864.cpp | 25 |
1 files changed, 11 insertions, 14 deletions
diff --git a/src/devices/sound/cdp1864.cpp b/src/devices/sound/cdp1864.cpp index ba026792c49..e8168004811 100644 --- a/src/devices/sound/cdp1864.cpp +++ b/src/devices/sound/cdp1864.cpp @@ -119,7 +119,7 @@ void cdp1864_device::device_start() initialize_palette(); // create sound stream - m_stream = machine().sound().stream_alloc(*this, 0, 1, machine().sample_rate()); + m_stream = stream_alloc(0, 1, SAMPLE_RATE_OUTPUT_ADAPTIVE); // allocate timers m_int_timer = timer_alloc(TIMER_INT); @@ -257,36 +257,31 @@ void cdp1864_device::device_timer(emu_timer &timer, device_timer_id id, int para // our sound stream //------------------------------------------------- -void cdp1864_device::sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) +void cdp1864_device::sound_stream_update(sound_stream &stream, std::vector<read_stream_view> const &inputs, std::vector<write_stream_view> &outputs) { - // reset the output stream - memset(outputs[0], 0, samples * sizeof(*outputs[0])); - - int16_t signal = m_signal; - stream_sample_t *buffer = outputs[0]; - - memset( buffer, 0, samples * sizeof(*buffer) ); + stream_buffer::sample_t signal = m_signal; + auto &buffer = outputs[0]; if (m_aoe) { double frequency = unscaled_clock() / 8 / 4 / (m_latch + 1) / 2; - int rate = machine().sample_rate() / 2; + int rate = buffer.sample_rate() / 2; /* get progress through wave */ int incr = m_incr; if (signal < 0) { - signal = -0x7fff; + signal = -1.0; } else { - signal = 0x7fff; + signal = 1.0; } - while( samples-- > 0 ) + for (int sampindex = 0; sampindex < buffer.samples(); sampindex++) { - *buffer++ = signal; + buffer.put(sampindex, signal); incr -= frequency; while( incr < 0 ) { @@ -299,6 +294,8 @@ void cdp1864_device::sound_stream_update(sound_stream &stream, stream_sample_t * m_incr = incr; m_signal = signal; } + else + buffer.fill(0); } |