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-rw-r--r--src/adlmidi.cpp80
1 files changed, 32 insertions, 48 deletions
diff --git a/src/adlmidi.cpp b/src/adlmidi.cpp
index 108ff1a..96ef32f 100644
--- a/src/adlmidi.cpp
+++ b/src/adlmidi.cpp
@@ -227,8 +227,7 @@ ADLMIDI_EXPORT int adl_openBankFile(struct ADL_MIDIPlayer *device, const char *f
if(device && device->adl_midiPlayer)
{
MIDIplay *play = reinterpret_cast<MIDIplay *>(device->adl_midiPlayer);
- play->m_setup.stored_samples = 0;
- play->m_setup.backup_samples_size = 0;
+ play->m_setup.tick_skip_samples_delay = 0;
if(!play->LoadBank(filePath))
{
std::string err = play->getErrorString();
@@ -248,8 +247,7 @@ ADLMIDI_EXPORT int adl_openBankData(struct ADL_MIDIPlayer *device, const void *m
if(device && device->adl_midiPlayer)
{
MIDIplay *play = reinterpret_cast<MIDIplay *>(device->adl_midiPlayer);
- play->m_setup.stored_samples = 0;
- play->m_setup.backup_samples_size = 0;
+ play->m_setup.tick_skip_samples_delay = 0;
if(!play->LoadBank(mem, static_cast<size_t>(size)))
{
std::string err = play->getErrorString();
@@ -269,8 +267,7 @@ ADLMIDI_EXPORT int adl_openFile(ADL_MIDIPlayer *device, const char *filePath)
if(device && device->adl_midiPlayer)
{
MIDIplay *play = reinterpret_cast<MIDIplay *>(device->adl_midiPlayer);
- play->m_setup.stored_samples = 0;
- play->m_setup.backup_samples_size = 0;
+ play->m_setup.tick_skip_samples_delay = 0;
if(!play->LoadMIDI(filePath))
{
std::string err = play->getErrorString();
@@ -290,8 +287,7 @@ ADLMIDI_EXPORT int adl_openData(ADL_MIDIPlayer *device, const void *mem, unsigne
if(device && device->adl_midiPlayer)
{
MIDIplay *play = reinterpret_cast<MIDIplay *>(device->adl_midiPlayer);
- play->m_setup.stored_samples = 0;
- play->m_setup.backup_samples_size = 0;
+ play->m_setup.tick_skip_samples_delay = 0;
if(!play->LoadMIDI(mem, static_cast<size_t>(size)))
{
std::string err = play->getErrorString();
@@ -360,8 +356,7 @@ ADLMIDI_EXPORT void adl_reset(struct ADL_MIDIPlayer *device)
if(!device)
return;
MIDIplay *play = reinterpret_cast<MIDIplay *>(device->adl_midiPlayer);
- play->m_setup.stored_samples = 0;
- play->m_setup.backup_samples_size = 0;
+ play->m_setup.tick_skip_samples_delay = 0;
play->opl.Reset(play->m_setup.PCM_RATE);
}
@@ -516,21 +511,11 @@ inline static void SendStereoAudio(MIDIplay::Setup &device,
{
if(!in_size)
return;
- device.stored_samples = 0;
size_t offset = static_cast<size_t>(out_pos);
size_t inSamples = static_cast<size_t>(in_size * 2);
size_t maxSamples = static_cast<size_t>(samples_requested) - offset;
size_t toCopy = std::min(maxSamples, inSamples);
std::memcpy(_out + out_pos, _in, toCopy * sizeof(short));
-
- if(maxSamples < inSamples)
- {
- size_t appendSize = inSamples - maxSamples;
- std::memcpy(device.backup_samples + device.backup_samples_size,
- maxSamples + _in, appendSize * sizeof(short));
- device.backup_samples_size += (ssize_t)appendSize;
- device.stored_samples += (ssize_t)appendSize;
- }
}
@@ -555,39 +540,25 @@ ADLMIDI_EXPORT int adl_play(ADL_MIDIPlayer *device, int sampleCount, short *out)
ssize_t n_periodCountStereo = 512;
//ssize_t n_periodCountPhys = n_periodCountStereo * 2;
int left = sampleCount;
+ bool hasSkipped = setup.tick_skip_samples_delay > 0;
while(left > 0)
{
- if(setup.backup_samples_size > 0)
- {
- //Send reserved samples if exist
- ssize_t ate = 0;
-
- while((ate < setup.backup_samples_size) && (ate < left))
+ {//...
+ const double eat_delay = setup.delay < setup.maxdelay ? setup.delay : setup.maxdelay;
+ if(hasSkipped)
{
- out[ate] = setup.backup_samples[ate];
- ate++;
+ size_t samples = setup.tick_skip_samples_delay > sampleCount ? sampleCount : setup.tick_skip_samples_delay;
+ n_periodCountStereo = samples / 2;
}
-
- left -= (int)ate;
- gotten_len += ate;
-
- if((ate < setup.backup_samples_size) && (ate != 0))
+ else
{
- for(size_t src = ate, dst = 0; src < setup.backup_samples_size; src++, dst++)
- setup.backup_samples[dst] = setup.backup_samples[src];
+ setup.delay -= eat_delay;
+ setup.carry += setup.PCM_RATE * eat_delay;
+ n_periodCountStereo = static_cast<ssize_t>(setup.carry);
+ setup.carry -= n_periodCountStereo;
}
- setup.backup_samples_size -= ate;
- }
- else
- {
- const double eat_delay = setup.delay < setup.maxdelay ? setup.delay : setup.maxdelay;
- setup.delay -= eat_delay;
- setup.carry += setup.PCM_RATE * eat_delay;
- n_periodCountStereo = static_cast<ssize_t>(setup.carry);
- setup.carry -= n_periodCountStereo;
-
//if(setup.SkipForward > 0)
// setup.SkipForward -= 1;
//else
@@ -595,6 +566,12 @@ ADLMIDI_EXPORT int adl_play(ADL_MIDIPlayer *device, int sampleCount, short *out)
if((player->atEnd) && (setup.delay <= 0.0))
break;//Stop to fetch samples at reaching the song end with disabled loop
+ ssize_t leftSamples = left / 2;
+ if(n_periodCountStereo > leftSamples)
+ {
+ setup.tick_skip_samples_delay = (n_periodCountStereo - leftSamples) * 2;
+ n_periodCountStereo = leftSamples;
+ }
//! Count of stereo samples
ssize_t in_generatedStereo = (n_periodCountStereo > 512) ? 512 : n_periodCountStereo;
//! Total count of samples
@@ -630,11 +607,18 @@ ADLMIDI_EXPORT int adl_play(ADL_MIDIPlayer *device, int sampleCount, short *out)
SendStereoAudio(setup, sampleCount, in_generatedStereo, out_buf, gotten_len, out);
left -= (int)in_generatedPhys;
- gotten_len += (in_generatedPhys) - setup.stored_samples;
+ gotten_len += (in_generatedPhys) /* - setup.stored_samples*/;
}
- setup.delay = player->Tick(eat_delay, setup.mindelay);
- }
+ if(hasSkipped)
+ {
+ setup.tick_skip_samples_delay -= n_periodCountStereo * 2;
+ hasSkipped = setup.tick_skip_samples_delay > 0;
+ }
+ else
+ setup.delay = player->Tick(eat_delay, setup.mindelay);
+
+ }//...
}
return static_cast<int>(gotten_len);
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-03 20:46:24 +0000