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-spg2xx_audio: Switch sample processing mode immediately on change. Fixes additional instruments in icanpian. [Ryan Holtz]

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This commit is contained in:
MooglyGuy 2019-03-15 19:29:05 +01:00
parent 6640fd4566
commit aad9f71a09
1 changed files with 31 additions and 43 deletions
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74
src/devices/machine/spg2xx_audio.cpp
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@ -11,19 +11,18 @@
DEFINE_DEVICE_TYPE(SPG2XX_AUDIO, spg2xx_audio_device, "spg2xx", "SPG2xx-series System-on-a-Chip Audio")
#define LOG_SPU_READS (1U << 13)
#define LOG_SPU_WRITES (1U << 14)
#define LOG_UNKNOWN_SPU (1U << 15)
#define LOG_CHANNEL_READS (1U << 16)
#define LOG_CHANNEL_WRITES (1U << 17)
#define LOG_ENVELOPES (1U << 18)
#define LOG_SAMPLES (1U << 19)
#define LOG_RAMPDOWN (1U << 20)
#define LOG_BEAT (1U << 21)
#define LOG_SPU_READS (1U << 0)
#define LOG_SPU_WRITES (1U << 1)
#define LOG_UNKNOWN_SPU (1U << 2)
#define LOG_CHANNEL_READS (1U << 3)
#define LOG_CHANNEL_WRITES (1U << 4)
#define LOG_ENVELOPES (1U << 5)
#define LOG_SAMPLES (1U << 6)
#define LOG_RAMPDOWN (1U << 7)
#define LOG_BEAT (1U << 8)
#define LOG_SPU (LOG_SPU_READS | LOG_SPU_WRITES | LOG_UNKNOWN_SPU | LOG_CHANNEL_READS | LOG_CHANNEL_WRITES \
#define LOG_ALL (LOG_SPU_READS | LOG_SPU_WRITES | LOG_UNKNOWN_SPU | LOG_CHANNEL_READS | LOG_CHANNEL_WRITES \
| LOG_ENVELOPES | LOG_SAMPLES | LOG_RAMPDOWN | LOG_BEAT)
#define LOG_ALL (LOG_SPU)
#define VERBOSE (0)
#include "logmacro.h"
@ -923,47 +922,35 @@ bool spg2xx_audio_device::advance_channel(const uint32_t channel)
bool playing = true;
if (get_adpcm_bit(channel))
for (uint32_t sample = 0; sample < samples_to_advance; sample++)
{
// ADPCM mode
for (uint32_t sample = 0; sample < samples_to_advance && playing; sample++)
playing = fetch_sample(channel);
if (!playing)
break;
if (get_adpcm_bit(channel))
{
playing = fetch_sample(channel);
if (playing)
// ADPCM mode
m_sample_shift[channel] += 4;
if (m_sample_shift[channel] >= 16)
{
m_sample_shift[channel] += 4;
if (m_sample_shift[channel] == 16)
{
m_sample_shift[channel] = 0;
m_sample_addr[channel]++;
}
m_sample_shift[channel] = 0;
m_sample_addr[channel]++;
}
}
}
else if (get_16bit_bit(channel))
{
// 16-bit mode
for (uint32_t sample = 0; sample < samples_to_advance && playing; sample++)
else if (get_16bit_bit(channel))
{
playing = fetch_sample(channel);
if (playing)
m_sample_addr[channel]++;
// 16-bit mode
m_sample_addr[channel]++;
}
}
else
{
// 8-bit mode
for (uint32_t sample = 0; sample < samples_to_advance && playing; sample++)
else
{
playing = fetch_sample(channel);
if (playing)
// 8-bit mode
m_sample_shift[channel] += 8;
if (m_sample_shift[channel] >= 16)
{
m_sample_shift[channel] += 8;
if (m_sample_shift[channel] == 16)
{
m_sample_shift[channel] = 0;
m_sample_addr[channel]++;
}
m_sample_shift[channel] = 0;
m_sample_addr[channel]++;
}
}
}
@ -1044,6 +1031,7 @@ bool spg2xx_audio_device::fetch_sample(const uint32_t channel)
else
{
// 8-bit mode
LOGMASKED(LOG_SAMPLES, "Channel %d: Processing as 8-bit sample, tone_mode is %d, sample_shift is %d\n", channel, tone_mode, m_sample_shift[channel]);
if (tone_mode != 0)
{
if (m_sample_shift[channel])