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plugins: midi: remove HW_SAMPR_CAPS usage

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Change-Id: Ie4962cf6d4f2f9078fa348f8f6f638cfbc0047a5
This commit is contained in:
mojyack 2026-02-13 16:53:25 +09:00 • committed by Solomon Peachy
parent e923b354a6
commit 9c708e3876
5 changed files with 75 additions and 82 deletions
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58
apps/plugins/midi/midiplay.c
View file

@ -381,6 +381,8 @@
struct MIDIfile * mf IBSS_ATTR;
int sample_rate IBSS_ATTR;
int max_voices IBSS_ATTR;
int number_of_samples IBSS_ATTR; /* the number of samples in the current tick */
int playing_time IBSS_ATTR; /* How many seconds into the file have we been playing? */
int samples_this_second IBSS_ATTR; /* How many samples produced during this second so far? */
@ -490,11 +492,61 @@ static void get_more(const void** start, size_t* size)
*size = samples_in_buf*sizeof(int32_t);
}
static const struct mixer_play_cbs mixer_cbs = {
.get_more = get_more,
/* TODO: update sample_rate and max_voices on sampr_changed() */
};
UNUSED_ATTR static int find_min_sampr_ge_22(void)
{
const struct pcm_sink_caps* caps = rb->pcm_current_sink_caps();
int ret = caps->samprs[0];
for (size_t i = 1; i < caps->num_samprs; i += 1)
{
/* caps->samprs is in descending order */
if (caps->samprs[i] >= SAMPR_22)
ret = caps->samprs[i];
else
break;
}
return ret;
}
static int midimain(const void * filename)
{
int a, notes_used, vol;
bool is_playing = true; /* false = paused */
/* decide sample_rate and max_voices */
#if defined(SIMULATOR) /* Simulator requires 44100Hz, and we can afford to use more voices */ || \
(CONFIG_PLATFORM & PLATFORM_HOSTED) /* All hosted targets have CPU to spare */ || \
defined(CPU_MIPS) /* All MIPS targets are pretty fast */
sample_rate = SAMPR_44;
max_voices = 48;
#elif defined(CPU_PP)
/* Some of the pp based targets can't handle too many voices
mainly because they have to use 44100Hz sample rate, this could be
improved to increase max_voices for targets that can do 22kHz */
sample_rate = find_min_sampr_ge_22();
max_voices = sample_rate == SAMPR_22 ? 24 : 16;
#elif defined(CPU_ARM)
/* ARMv4 targets are slow, but treat everything else as fast */
#if (ARM_ARCH >= 6)
sample_rate = SAMPR_44;
max_voices = 32;
#elif (ARM_ARCH >= 5)
sample_rate = find_min_sampr_ge_22();
max_voices = 32;
#else /* ie v4 */
sample_rate = find_min_sampr_ge_22();
max_voices = sample_rate == SAMPR_22 ? 24 : 16;
#endif
#else /* !CPU_ARM */
/* Treat everything else as slow */
sample_rate = find_min_sampr_ge_22();
max_voices = sample_rate == SAMPR_22 ? 24 : 16;
#endif
#if defined(HAVE_ADJUSTABLE_CPU_FREQ)
rb->cpu_boost(true);
#endif
@ -537,7 +589,7 @@ static int midimain(const void * filename)
rb->dsp_set_timestretch(PITCH_SPEED_100);
#endif
rb->dsp_configure(dsp, DSP_SET_SAMPLE_DEPTH, 22);
rb->dsp_configure(dsp, DSP_SET_FREQUENCY, SAMPLE_RATE); /* 44100 22050 11025 */
rb->dsp_configure(dsp, DSP_SET_FREQUENCY, sample_rate); /* 44100 22050 11025 */
rb->dsp_configure(dsp, DSP_SET_STEREO_MODE, STEREO_INTERLEAVED);
/*
@ -553,14 +605,14 @@ static int midimain(const void * filename)
midi_debug("Okay, starting sequencing");
bpm = mf->div*1000000/tempo;
number_of_samples = SAMPLE_RATE/bpm;
number_of_samples = sample_rate/bpm;
/* Skip over any junk in the beginning of the file, so start playing */
/* after the first note event */
do
{
notes_used = 0;
for (a = 0; a < MAX_VOICES; a++)
for (a = 0; a < max_voices; a++)
if (voices[a].isUsed)
notes_used++;
tick();

2
apps/plugins/midi/midiutil.c
View file

@ -35,7 +35,7 @@ struct GPatch * gusload(char *);
struct GPatch * patchSet[128];
struct GPatch * drumSet[128];
struct SynthObject voices[MAX_VOICES] IBSS_ATTR;
struct SynthObject voices[48] IBSS_ATTR;
static void *alloc(int size)
{

65
apps/plugins/midi/midiutil.h
View file

@ -27,67 +27,6 @@
#define NBUF 2
#define MAX_SAMPLES 512
#ifdef SIMULATOR
/* Simulator requires 44100Hz, and we can afford to use more voices */
#define SAMPLE_RATE SAMPR_44
#define MAX_VOICES 48
#elif (CONFIG_PLATFORM & PLATFORM_HOSTED)
/* All hosted targets have CPU to spare */
#define MAX_VOICES 48
#define SAMPLE_RATE SAMPR_44
#elif defined(CPU_PP)
/* Some of the pp based targets can't handle too many voices
mainly because they have to use 44100Hz sample rate, this could be
improved to increase MAX_VOICES for targets that can do 22kHz */
#define SAMPLE_RATE HW_SAMPR_MIN_GE_22
#if HW_SAMPR_CAPS & SAMPR_CAP_22
#define MAX_VOICES 24 /* General MIDI minimum */
#else
#define MAX_VOICES 16
#endif
#elif defined(CPU_MIPS)
/* All MIPS targets are pretty fast */
#define MAX_VOICES 48
#define SAMPLE_RATE SAMPR_44
#elif defined(CPU_ARM)
/* ARMv4 targets are slow, but treat everything else as fast */
#if (ARM_ARCH >= 6)
#define MAX_VOICES 32
#define SAMPLE_RATE SAMPR_44
#elif (ARM_ARCH >= 5)
#define MAX_VOICES 32
#define SAMPLE_RATE HW_SAMPR_MIN_GE_22
#else /* ie v4 */
#define SAMPLE_RATE HW_SAMPR_MIN_GE_22
#if HW_SAMPR_CAPS & SAMPR_CAP_22
#define MAX_VOICES 24 /* General MIDI minimum */
#else
#define MAX_VOICES 16
#endif
#endif /* ARM_ARCH < 5*/
#else /* !CPU_ARM */
/* Treat everything else as slow */
#define SAMPLE_RATE HW_SAMPR_MIN_GE_22
#if HW_SAMPR_CAPS & SAMPR_CAP_22
#define MAX_VOICES 24 /* General MIDI minimum */
#else
#define MAX_VOICES 16
#endif
#endif /* Wrap it up. */
#define BYTE unsigned char
/* Data chunk ID types, returned by readID() */
@ -189,7 +128,7 @@ void * readData(int file, int len);
#define malloc(n) my_malloc(n)
void * my_malloc(int size);
extern struct SynthObject voices[MAX_VOICES];
extern struct SynthObject voices[48]; /* 48: maximum possible max_voices */
extern int chVol[16]; /* Channel volume */
extern int chPan[16]; /* Channel panning */
@ -207,6 +146,8 @@ extern struct GPatch * drumSet[128];
extern struct MIDIfile * mf;
extern int sample_rate;
extern int max_voices;
extern int number_of_samples;
extern int playing_time IBSS_ATTR;
extern int samples_this_second IBSS_ATTR;

26
apps/plugins/midi/sequencer.c
View file

@ -65,7 +65,7 @@ static inline void setVol(int ch, int vol)
/* If channel volume changes, we need to recalculate the volume scale */
/* factor for all voices active on this channel */
for (a = 0; a < MAX_VOICES; a++)
for (a = 0; a < max_voices; a++)
if (voices[a].ch == ch)
setVolScale(a);
}
@ -156,7 +156,7 @@ static void findDelta(struct SynthObject * so, int ch, int note)
delta = (((freqtable[note+chPBNoteOffset[ch]]))); /* anywhere from 8000 to 8000000 */
delta = delta * wf->sampRate; /* approx 20000 - 44000 but can vary with tuning */
delta = (delta * chPBFractBend[ch]); /* approx 60000 - 70000 */
delta = delta / (SAMPLE_RATE); /* 44100 or 22050 */
delta = delta / (sample_rate); /* 44100 or 22050 */
delta = delta / (wf->rootFreq); /* anywhere from 8000 to 8000000 */
/* Pitch bend is encoded as a fractional of 16 bits, hence the 16 */
@ -167,7 +167,7 @@ static void findDelta(struct SynthObject * so, int ch, int note)
static inline void computeDeltas(int ch)
{
int a;
for (a = 0; a < MAX_VOICES; a++)
for (a = 0; a < max_voices; a++)
{
if (voices[a].isUsed && voices[a].ch == ch)
{
@ -210,7 +210,7 @@ static inline void pressNote(int ch, int note, int vol)
if(ch == 15) return;
*/
int a;
for (a = 0; a < MAX_VOICES; a++)
for (a = 0; a < max_voices; a++)
{
if (voices[a].ch == ch && voices[a].note == note)
break;
@ -218,7 +218,7 @@ static inline void pressNote(int ch, int note, int vol)
if (!voices[a].isUsed)
break;
}
if (a == MAX_VOICES)
if (a == max_voices)
{
// midi_debug("\nVoice kill");
// midi_debug("\nToo many voices playing at once. No more left");
@ -226,7 +226,7 @@ static inline void pressNote(int ch, int note, int vol)
// for(a=0; a<48; a++)
// midi_debug("\n#%d Ch=%d Note=%d curRate=%d curOffset=%d curPoint=%d targetOffset=%d", a, voices[a].ch, voices[a].note, voices[a].curRate, voices[a].curOffset, voices[a].curPoint, voices[a].targetOffset);
lastKill++;
if (lastKill == MAX_VOICES)
if (lastKill == max_voices)
lastKill = 0;
a = lastKill;
// return; /* None available */
@ -263,7 +263,7 @@ static inline void pressNote(int ch, int note, int vol)
struct GWaveform * wf = drumSet[note]->waveforms[0];
voices[a].wf = wf;
voices[a].delta = (((freqtable[note]<<FRACTSIZE) / wf->rootFreq) * wf->sampRate / SAMPLE_RATE);
voices[a].delta = (((freqtable[note]<<FRACTSIZE) / wf->rootFreq) * wf->sampRate / sample_rate);
if (wf->mode & 28)
// midi_debug("\nWoah, a drum patch has a loop. Stripping the loop...");
wf->mode = wf->mode & (255-28);
@ -285,7 +285,7 @@ static void releaseNote(int ch, int note)
return;
int a;
for (a = 0; a < MAX_VOICES; a++)
for (a = 0; a < max_voices; a++)
{
if (voices[a].ch == ch && voices[a].note == note)
{
@ -432,7 +432,7 @@ int tick(void)
tempo = (((short)e->evData[0])<<16)|(((short)e->evData[1])<<8)|(e->evData[2]);
/* midi_debug("\nMeta-Event: Tempo Set = %d", tempo); */
bpm=mf->div*1000000/tempo;
number_of_samples=SAMPLE_RATE/bpm;
number_of_samples=sample_rate/bpm;
}
}
@ -446,9 +446,9 @@ int tick(void)
samples_this_second += number_of_samples;
while (samples_this_second >= SAMPLE_RATE)
while (samples_this_second >= sample_rate)
{
samples_this_second -= SAMPLE_RATE;
samples_this_second -= sample_rate;
playing_time++;
}
@ -471,7 +471,7 @@ void seekBackward(int nsec)
/* Set the tempo to defalt */
bpm = mf->div*1000000/tempo;
number_of_samples = SAMPLE_RATE/bpm;
number_of_samples = sample_rate/bpm;
/* Reset the tracks to start */
rewindFile();
@ -484,7 +484,7 @@ void seekBackward(int nsec)
do
{
notes_used = 0;
for (a = 0; a < MAX_VOICES; a++)
for (a = 0; a < max_voices; a++)
if (voices[a].isUsed)
notes_used++;
tick();

6
apps/plugins/midi/synth.c
View file

@ -46,7 +46,7 @@ static void readTextBlock(int file, char * buf)
void resetControllers()
{
int a=0;
for(a=0; a<MAX_VOICES; a++)
for(a=0; a<max_voices; a++)
{
voices[a].cp=0;
voices[a].vol=0;
@ -448,13 +448,13 @@ static inline void synthVoice(struct SynthObject * so, int32_t * out, unsigned i
size_t synthSamples(int32_t *buf_ptr, size_t num_samples) ICODE_ATTR;
size_t synthSamples(int32_t *buf_ptr, size_t num_samples)
{
unsigned int i;
int i;
struct SynthObject *voicept;
size_t nsamples = MIN(num_samples, MAX_SAMPLES);
rb->memset(buf_ptr, 0, nsamples * 2 * sizeof(int32_t));
for(i=0; i < MAX_VOICES; i++)
for(i=0; i < max_voices; i++)
{
voicept=&voices[i];
if(voicept->isUsed)