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Aaron Giles
parent
b36244a734
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2
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vendored
@ -1142,6 +1142,8 @@ src/emu/sound/ymz280b.c svneol=native#text/plain
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src/emu/sound/ymz280b.h svneol=native#text/plain
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src/emu/sound/zsg2.c svneol=native#text/plain
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src/emu/sound/zsg2.h svneol=native#text/plain
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src/emu/speaker.c svneol=native#text/plain
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src/emu/speaker.h svneol=native#text/plain
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src/emu/state.c svneol=native#text/plain
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src/emu/state.h svneol=native#text/plain
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src/emu/tilemap.c svneol=native#text/plain
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269
src/emu/speaker.c
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269
src/emu/speaker.c
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@ -0,0 +1,269 @@
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/***************************************************************************
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speaker.c
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Speaker output sound device.
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****************************************************************************
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Copyright Aaron Giles
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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* Neither the name 'MAME' nor the names of its contributors may be
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used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY AARON GILES ''AS IS'' AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL AARON GILES BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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***************************************************************************/
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#include "emu.h"
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#include "emuopts.h"
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#include "osdepend.h"
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#include "config.h"
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#include "profiler.h"
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#include "sound/wavwrite.h"
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/***************************************************************************
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DEBUGGING
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***************************************************************************/
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#define VERBOSE (0)
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#define VPRINTF(x) do { if (VERBOSE) mame_printf_debug x; } while (0)
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/***************************************************************************
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DEVICE DEFINITIONS
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***************************************************************************/
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const device_type SPEAKER = speaker_device_config::static_alloc_device_config;
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//**************************************************************************
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// SPEAKER DEVICE CONFIGURATION
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//**************************************************************************
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//-------------------------------------------------
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// speaker_device_config - constructor
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//-------------------------------------------------
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speaker_device_config::speaker_device_config(const machine_config &mconfig, const char *tag, const device_config *owner, UINT32 clock)
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: device_config(mconfig, static_alloc_device_config, "Speaker", tag, owner, clock),
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device_config_sound_interface(mconfig, *this),
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m_x(0.0),
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m_y(0.0),
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m_z(0.0)
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{
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}
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//-------------------------------------------------
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// static_alloc_device_config - allocate a new
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// configuration object
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//-------------------------------------------------
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device_config *speaker_device_config::static_alloc_device_config(const machine_config &mconfig, const char *tag, const device_config *owner, UINT32 clock)
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{
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return global_alloc(speaker_device_config(mconfig, tag, owner, clock));
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}
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//-------------------------------------------------
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// alloc_device - allocate a new device object
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//-------------------------------------------------
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device_t *speaker_device_config::alloc_device(running_machine &machine) const
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{
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return auto_alloc(&machine, speaker_device(machine, *this));
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}
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//-------------------------------------------------
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// static_set_position - configuration helper to
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// set the speaker position
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//-------------------------------------------------
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void speaker_device_config::static_set_position(device_config *device, double x, double y, double z)
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{
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speaker_device_config *speaker = downcast<speaker_device_config *>(device);
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speaker->m_x = x;
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speaker->m_y = y;
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speaker->m_z = z;
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}
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//**************************************************************************
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// LIVE SPEAKER DEVICE
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//**************************************************************************
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//-------------------------------------------------
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// speaker_device - constructor
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//-------------------------------------------------
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speaker_device::speaker_device(running_machine &_machine, const speaker_device_config &config)
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: device_t(_machine, config),
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device_sound_interface(_machine, config, *this),
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m_config(config),
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m_mixer_stream(NULL)
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#ifdef MAME_DEBUG
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,
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m_max_sample(0),
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m_clipped_samples(0),
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m_total_samples(0)
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#endif
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{
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}
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//-------------------------------------------------
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// ~speaker_device - destructor
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//-------------------------------------------------
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speaker_device::~speaker_device()
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{
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#ifdef MAME_DEBUG
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// log the maximum sample values for all speakers
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if (m_max_sample > 0)
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mame_printf_debug("Speaker \"%s\" - max = %d (gain *= %f) - %d%% samples clipped\n", tag(), m_max_sample, 32767.0 / (m_max_sample ? m_max_sample : 1), (int)((double)m_clipped_samples * 100.0 / m_total_samples));
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#endif
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}
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//-------------------------------------------------
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// device_start - perform device-specific
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// startup
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//-------------------------------------------------
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void speaker_device::device_start()
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{
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// no inputs? that's weird
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if (m_auto_allocated_inputs == 0)
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{
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logerror("Warning: speaker \"%s\" has no inputs\n", tag());
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return;
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}
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// allocate the mixer stream
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m_mixer_stream = m_machine.sound().stream_alloc(*this, m_auto_allocated_inputs, 1, machine->sample_rate);
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}
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//-------------------------------------------------
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// device_post_load - after we load a save state
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// be sure to update the mixer stream's output
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// sample rate
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//-------------------------------------------------
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void speaker_device::device_post_load()
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{
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m_mixer_stream->set_sample_rate(m_machine.sample_rate);
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}
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//-------------------------------------------------
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// mixer_update - mix all inputs to one output
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//-------------------------------------------------
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void speaker_device::sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples)
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{
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VPRINTF(("Mixer_update(%d)\n", samples));
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// loop over samples
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for (int pos = 0; pos < samples; pos++)
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{
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// add up all the inputs
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INT32 sample = inputs[0][pos];
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for (int inp = 1; inp < m_auto_allocated_inputs; inp++)
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sample += inputs[inp][pos];
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outputs[0][pos] = sample;
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}
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}
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//-------------------------------------------------
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// mix - mix in samples from the speaker's stream
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//-------------------------------------------------
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void speaker_device::mix(INT32 *leftmix, INT32 *rightmix, int &samples_this_update, bool suppress)
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{
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// skip if no stream
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if (m_mixer_stream == NULL)
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return;
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// update the stream, getting the start/end pointers around the operation
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int numsamples;
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const stream_sample_t *stream_buf = m_mixer_stream->output_since_last_update(0, numsamples);
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// set or assert that all streams have the same count
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if (samples_this_update == 0)
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{
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samples_this_update = numsamples;
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// reset the mixing streams
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memset(leftmix, 0, samples_this_update * sizeof(*leftmix));
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memset(rightmix, 0, samples_this_update * sizeof(*rightmix));
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}
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assert(samples_this_update == numsamples);
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#ifdef MAME_DEBUG
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// debug version: keep track of the maximum sample
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for (int sample = 0; sample < samples_this_update; sample++)
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{
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if (stream_buf[sample] > m_max_sample)
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m_max_sample = stream_buf[sample];
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else if (-stream_buf[sample] > m_max_sample)
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m_max_sample = -stream_buf[sample];
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if (stream_buf[sample] > 32767 || stream_buf[sample] < -32768)
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m_clipped_samples++;
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m_total_samples++;
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}
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#endif
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// mix if sound is enabled
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if (!suppress)
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{
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// if the speaker is centered, send to both left and right
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if (m_config.m_x == 0)
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for (int sample = 0; sample < samples_this_update; sample++)
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{
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leftmix[sample] += stream_buf[sample];
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rightmix[sample] += stream_buf[sample];
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}
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// if the speaker is to the left, send only to the left
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else if (m_config.m_x < 0)
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for (int sample = 0; sample < samples_this_update; sample++)
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leftmix[sample] += stream_buf[sample];
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// if the speaker is to the right, send only to the right
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else
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for (int sample = 0; sample < samples_this_update; sample++)
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rightmix[sample] += stream_buf[sample];
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}
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}
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187
src/emu/speaker.h
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187
src/emu/speaker.h
Normal file
@ -0,0 +1,187 @@
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/***************************************************************************
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speaker.h
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Speaker output sound device.
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****************************************************************************
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Copyright Aaron Giles
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
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* Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
* Redistributions in binary form must reproduce the above copyright
|
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notice, this list of conditions and the following disclaimer in
|
||||
the documentation and/or other materials provided with the
|
||||
distribution.
|
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* Neither the name 'MAME' nor the names of its contributors may be
|
||||
used to endorse or promote products derived from this software
|
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without specific prior written permission.
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||||
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THIS SOFTWARE IS PROVIDED BY AARON GILES ''AS IS'' AND ANY EXPRESS OR
|
||||
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
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DISCLAIMED. IN NO EVENT SHALL AARON GILES BE LIABLE FOR ANY DIRECT,
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||||
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
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IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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***************************************************************************/
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#pragma once
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#ifndef __EMU_H__
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#error Dont include this file directly; include emu.h instead.
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#endif
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#ifndef __SPEAKER_H__
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#define __SPEAKER_H__
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//**************************************************************************
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// DEVICE CONFIGURATION MACROS
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//**************************************************************************
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// add/remove speakers
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#define MCFG_SPEAKER_ADD(_tag, _x, _y, _z) \
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MCFG_DEVICE_ADD(_tag, SPEAKER, 0) \
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speaker_device_config::static_set_position(device, _x, _y, _z); \
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#define MCFG_SPEAKER_STANDARD_MONO(_tag) \
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MCFG_SPEAKER_ADD(_tag, 0.0, 0.0, 1.0)
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#define MCFG_SPEAKER_STANDARD_STEREO(_tagl, _tagr) \
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MCFG_SPEAKER_ADD(_tagl, -0.2, 0.0, 1.0) \
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MCFG_SPEAKER_ADD(_tagr, 0.2, 0.0, 1.0)
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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// ======================> speaker_device_config
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class speaker_device_config : public device_config,
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public device_config_sound_interface
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{
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friend class speaker_device;
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// construction/destruction
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speaker_device_config(const machine_config &mconfig, const char *tag, const device_config *owner, UINT32 clock);
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public:
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// allocators
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static device_config *static_alloc_device_config(const machine_config &mconfig, const char *tag, const device_config *owner, UINT32 clock);
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virtual device_t *alloc_device(running_machine &machine) const;
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// inline configuration helpers
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static void static_set_position(device_config *device, double x, double y, double z);
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protected:
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// inline configuration state
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double m_x;
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double m_y;
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double m_z;
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};
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// ======================> speaker_device
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class speaker_device : public device_t,
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public device_sound_interface
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{
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friend class speaker_device_config;
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friend resource_pool_object<speaker_device>::~resource_pool_object();
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// construction/destruction
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speaker_device(running_machine &_machine, const speaker_device_config &config);
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virtual ~speaker_device();
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public:
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// internally for use by the sound system
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void mix(INT32 *leftmix, INT32 *rightmix, int &samples_this_update, bool suppress);
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protected:
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// device-level overrides
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virtual void device_start();
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virtual void device_post_load();
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// sound interface overrides
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virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples);
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// internal state
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const speaker_device_config &m_config;
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sound_stream * m_mixer_stream; // mixing stream
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#ifdef MAME_DEBUG
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INT32 m_max_sample; // largest sample value we've seen
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INT32 m_clipped_samples; // total number of clipped samples
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INT32 m_total_samples; // total number of samples
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#endif
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};
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// device type definition
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extern const device_type SPEAKER;
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//**************************************************************************
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// INLINE HELPERS
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//**************************************************************************
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//-------------------------------------------------
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// speaker_first - return the first speaker
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// device config in a machine_config
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//-------------------------------------------------
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inline const speaker_device_config *speaker_first(const machine_config &config)
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{
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return downcast<speaker_device_config *>(config.m_devicelist.first(SPEAKER));
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}
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//-------------------------------------------------
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// speaker_next - return the next speaker
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// device config in a machine_config
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//-------------------------------------------------
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inline const speaker_device_config *speaker_next(const speaker_device_config *previous)
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{
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return downcast<speaker_device_config *>(previous->typenext());
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}
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//-------------------------------------------------
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// speaker_first - return the first speaker
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// device in a machine
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//-------------------------------------------------
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inline speaker_device *speaker_first(running_machine &machine)
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{
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return downcast<speaker_device *>(machine.m_devicelist.first(SPEAKER));
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}
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//-------------------------------------------------
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// speaker_next - return the next speaker
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// device in a machine
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//-------------------------------------------------
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inline speaker_device *speaker_next(speaker_device *previous)
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{
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return downcast<speaker_device *>(previous->typenext());
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}
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#endif /* __SOUND_H__ */
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