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More work on PDBox by Wincent Balin. The PDBox plug-in is now working with the pdpod_test.pd file from the PureData.zip archive

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21816 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Peter D'Hoye 2009-07-12 18:44:26 +00:00
parent a3a8708cdf
commit 66a0492ab7
6 changed files with 208 additions and 155 deletions
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119
apps/plugins/pdbox/pdbox.c
View file

@ -40,79 +40,34 @@ int sys_verbose;
int sys_noloadbang;
t_symbol *sys_libdir;
t_namelist *sys_openlist;
int sys_nsoundin = 0;
int sys_soundindevlist[MAXAUDIOINDEV];
int sys_nchin = 0;
int sys_chinlist[MAXAUDIOINDEV];
int sys_nsoundout = 1;
int sys_soundoutdevlist[MAXAUDIOOUTDEV];
int sys_nchout = 2;
int sys_choutlist[MAXAUDIOOUTDEV];
static int sys_main_srate = PD_SAMPLERATE;
static int sys_main_advance = PD_SAMPLES_PER_HZ;
/* References for scheduler variables and functions. */
extern t_time sys_time;
extern t_time sys_time_per_dsp_tick;
extern void sched_tick(t_time next_sys_time);
#define SAMPLES_SIZE 1000
t_sample samples[SAMPLES_SIZE];
/* LATER consider making this variable. It's now the LCM of all sample
rates we expect to see: 32000, 44100, 48000, 88200, 96000. */
#define TIMEUNITPERSEC (32.*441000.)
/* Quit flag. */
bool quit = false;
/* Thread IDs. */
unsigned int core_thread_id;
unsigned int gui_thread_id;
unsigned int time_thread_id;
/* Stacks for threads. */
#define STACK_SIZE 16384
uint32_t core_stack[STACK_SIZE / sizeof(uint32_t)];
uint32_t gui_stack[STACK_SIZE / sizeof(uint32_t)];
uint32_t time_stack[256 / sizeof(uint32_t)];
/* Core thread, scheduler. */
void core_thread(void)
{
/* struct datagram ping; */
/* LATER consider making this variable. It's now the LCM of all sample
rates we expect to see: 32000, 44100, 48000, 88200, 96000. */
#define TIMEUNITPERSEC (32.*441000.)
sys_time = 0;
sys_time_per_dsp_tick = (TIMEUNITPERSEC) *
((double)sys_schedblocksize) / sys_dacsr;
/* Main loop */
while(!quit)
{
#if 0
/* Wait for request. */
while(!RECEIVE_TO_CORE(&ping))
rb->yield();
if(memcmp("Ping!", ping.data, ping.size) == 0)
{
SEND_FROM_CORE("Pong!");
break;
}
#endif
/* Use sys_send_dacs() function as timer. */
if(sys_send_dacs() != SENDDACS_NO)
sched_tick(sys_time + sys_time_per_dsp_tick);
rb->sleep(1);
}
rb->thread_exit();
}
/* GUI thread */
void gui_thread(void)
{
@ -138,6 +93,8 @@ void gui_thread(void)
break;
}
#endif
if(rb->button_get(false) == BUTTON_OFF)
quit = true;
rb->sleep(1);
}
@ -168,8 +125,13 @@ enum plugin_status plugin_start(const void* parameter)
size_t mem_size;
void* mem_pool;
/* Get the file name. */
/* Get the file name; check whether parameter contains no file name. */
filename = (char*) parameter;
if(strlen(filename) == 0)
{
rb->splash(HZ, "Play a .pd file!");
return PLUGIN_ERROR;
}
/* Allocate memory; check it's size; add to the pool. */
mem_pool = rb->plugin_get_audio_buffer(&mem_size);
@ -186,23 +148,31 @@ enum plugin_status plugin_start(const void* parameter)
/* Initialize Pure Data, as does sys_main in s_main.c */
pd_init();
/* Set audio API. */
sys_set_audio_api(API_ROCKBOX);
/* Initialize audio subsystem. */
sys_open_audio(0, /* No sound input yet */
sys_soundindevlist,
0, /* No sound input yet */
sys_chinlist,
1, /* One sound output device */
sys_soundoutdevlist,
-1, /* Use the default amount (2) of channels */
sys_choutlist,
PD_SAMPLERATE, /* Sample rate */
DEFAULTADVANCE, /* Scheduler advance */
1 /* Enable */);
/* Add the directory the called .pd resides in to lib directories. */
sys_findlibdir(filename);
/* Open the parameter file. */
sys_openlist = namelist_append(sys_openlist, filename);
/* Set audio API. */
sys_set_audio_api(API_ROCKBOX);
/* Fake a GUI start. */
sys_startgui(NULL);
/* Initialize audio subsystem. */
sys_open_audio(sys_nsoundin, sys_soundindevlist, sys_nchin, sys_chinlist,
sys_nsoundout, sys_soundoutdevlist, sys_nchout, sys_choutlist,
sys_main_srate, sys_main_advance, 1);
/* Start threads. */
time_thread_id =
rb->create_thread(&time_thread,
@ -212,15 +182,7 @@ enum plugin_status plugin_start(const void* parameter)
"PD running time"
IF_PRIO(, PRIORITY_REALTIME)
IF_COP(, COP));
core_thread_id =
rb->create_thread(&core_thread,
core_stack,
sizeof(core_stack),
0, /* FIXME Which flags? */
"PD core"
IF_PRIO(, MAX(PRIORITY_USER_INTERFACE / 2,
PRIORITY_REALTIME + 1))
IF_COP(, COP));
gui_thread_id =
rb->create_thread(&gui_thread,
gui_stack,
@ -231,18 +193,33 @@ enum plugin_status plugin_start(const void* parameter)
IF_COP(, CPU));
/* If having an error creating threads, bail out. */
if(core_thread_id == 0 || gui_thread_id == 0)
if(time_thread_id == 0 || gui_thread_id == 0)
return PLUGIN_ERROR;
/* Wait for quit flag. */
/* Initialize scheduler time variables. */
sys_time = 0;
sys_time_per_dsp_tick = (TIMEUNITPERSEC) *
((double) sys_schedblocksize) / sys_dacsr;
/* Main loop. */
while(!quit)
yield();
{
/* Use sys_send_dacs() function as timer. */
while(sys_send_dacs() != SENDDACS_NO)
sched_tick(sys_time + sys_time_per_dsp_tick);
/* Sleep to the next time slice. */
rb->sleep(1);
}
/* Wait for threads to complete. */
rb->thread_wait(gui_thread_id);
rb->thread_wait(core_thread_id);
rb->thread_wait(time_thread_id);
/* Close audio subsystem. */
sys_close_audio();
/* Destroy net. */
net_destroy();