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es5503: re-modernized, no breakage this time. [R. Belmont]

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This commit is contained in:
arbee 2020-09-23 23:14:59 -04:00
parent 002ebf0d07
commit 210d93e33f
2 changed files with 11 additions and 9 deletions
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11
src/devices/sound/es5503.cpp
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@ -127,13 +127,13 @@ void es5503_device::halt_osc(int onum, int type, uint32_t *accumulator, int ress
m_irq_func(1); m_irq_func(1);
} }
} }
void es5503_device::sound_stream_update(sound_stream &stream, std::vector<read_stream_view> const &inputs, std::vector<write_stream_view> &outputs)
void es5503_device::sound_stream_update_legacy(sound_stream &stream, stream_sample_t const * const *inputs, stream_sample_t * const *outputs, int samples)
{ {
static int32_t mix[(44100/60)*2*8]; static int32_t mix[(44100/60)*2*8];
int32_t *mixp; int32_t *mixp;
int osc, snum, i; int osc, snum, i;
uint32_t ramptr; uint32_t ramptr;
int samples = outputs[0].samples();
assert(samples < (44100/60)*2); assert(samples < (44100/60)*2);
memset(mix, 0, sizeof(mix)); memset(mix, 0, sizeof(mix));
@ -198,9 +198,10 @@ void es5503_device::sound_stream_update_legacy(sound_stream &stream, stream_samp
} }
} }
mixp = &mix[0]; mixp = &mix[0];
for (i = 0; i < samples; i++) constexpr stream_buffer::sample_t sample_scale = 1.0 / (32768.0 * 8.0);
for (int chan = 0; chan < output_channels; chan++) for (int chan = 0; chan < output_channels; chan++)
outputs[chan][i] = (*mixp++)>>3; for (i = 0; i < outputs[chan].samples(); i++)
outputs[chan].put(i, stream_buffer::sample_t(*mixp++) * sample_scale);
} }
@ -223,7 +224,7 @@ void es5503_device::device_start()
save_pointer(STRUCT_MEMBER(oscillators, irqpend), 32); save_pointer(STRUCT_MEMBER(oscillators, irqpend), 32);
output_rate = (clock() / 8) / (2 + oscsenabled); output_rate = (clock() / 8) / (2 + oscsenabled);
m_stream = stream_alloc_legacy(0, output_channels, output_rate); m_stream = stream_alloc(0, output_channels, output_rate);
m_timer = timer_alloc(0, nullptr); m_timer = timer_alloc(0, nullptr);
attotime update_rate = output_rate ? attotime::from_hz(output_rate) : attotime::never; attotime update_rate = output_rate ? attotime::from_hz(output_rate) : attotime::never;

3
src/devices/sound/es5503.h
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@ -36,7 +36,8 @@ protected:
virtual void device_timer(emu_timer &timer, device_timer_id tid, int param, void *ptr) override; virtual void device_timer(emu_timer &timer, device_timer_id tid, int param, void *ptr) override;
// device_sound_interface overrides // device_sound_interface overrides
virtual void sound_stream_update_legacy(sound_stream &stream, stream_sample_t const * const *inputs, stream_sample_t * const *outputs, int samples) override; //virtual void sound_stream_update_legacy(sound_stream &stream, stream_sample_t const * const *inputs, stream_sample_t * const *outputs, int samples) override;
virtual void sound_stream_update(sound_stream &stream, std::vector<read_stream_view> const &inputs, std::vector<write_stream_view> &outputs) override;
// device_rom_interface overrides // device_rom_interface overrides
virtual void rom_bank_updated() override; virtual void rom_bank_updated() override;