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Diffstat (limited to 'attic/muse2-oom/muse2/muse/driver/alsatimer.cpp')
-rw-r--r--attic/muse2-oom/muse2/muse/driver/alsatimer.cpp225
1 files changed, 0 insertions, 225 deletions
diff --git a/attic/muse2-oom/muse2/muse/driver/alsatimer.cpp b/attic/muse2-oom/muse2/muse/driver/alsatimer.cpp
deleted file mode 100644
index d851410d..00000000
--- a/attic/muse2-oom/muse2/muse/driver/alsatimer.cpp
+++ /dev/null
@@ -1,225 +0,0 @@
- //=========================================================
- // MusE
- // Linux Music Editor
- // $Id: alsatimer.cpp,v 1.1.2.9 2009/03/28 01:46:10 terminator356 Exp $
- //
- // Plenty of code borrowed from timer.c example in
- // alsalib 1.0.7
- //
- // (C) Copyright 2004 Robert Jonsson (rj@spamatica.se)
- //=========================================================
-
- #include "alsatimer.h"
- #include <climits>
-
-#define TIMER_DEBUG 0
-
- AlsaTimer::AlsaTimer()
- {
- if(TIMER_DEBUG)
- fprintf(stderr,"AlsaTimer::AlsaTimer(this=%p) called\n",this);
- handle = NULL;
- id = NULL;
- info = NULL;
- params = NULL;
- findBest = true;
- }
-
- AlsaTimer::~AlsaTimer()
- {
- if(TIMER_DEBUG)
- fprintf(stderr,"AlsaTimer::~AlsaTimer(this=%p) called\n",this);
- if (handle)
- snd_timer_close(handle);
- if (id) snd_timer_id_free(id);
- if (info) snd_timer_info_free(info);
- if (params) snd_timer_params_free(params);
- }
-
- signed int AlsaTimer::initTimer()
- {
- if(TIMER_DEBUG)
- printf("AlsaTimer::initTimer(this=%p)\n",this);
-
- int err;
- int devclass = SND_TIMER_CLASS_GLOBAL;
- int sclass = SND_TIMER_CLASS_NONE;
- int card = 0;
- int device = SND_TIMER_GLOBAL_SYSTEM;
- int subdevice = 0;
- int test_ids[] = { SND_TIMER_GLOBAL_SYSTEM
- , SND_TIMER_GLOBAL_RTC
-#ifdef SND_TIMER_GLOBAL_HPET
- , SND_TIMER_GLOBAL_HPET
-#endif
- };
- int max_ids = sizeof(test_ids) / sizeof(int);
- long best_res = LONG_MAX;
- //int best_dev = -1; // SND_TIMER_GLOBAL_SYSTEM;
- int best_dev = SND_TIMER_GLOBAL_SYSTEM; // p3.3.51
- int i;
-
- if (id || info || params) {
- fprintf(stderr,"AlsaTimer::initTimer(): called on initialised timer!\n");
- return fds->fd;
- }
- snd_timer_id_malloc(&id);
- snd_timer_info_malloc(&info);
- snd_timer_params_malloc(&params);
-
- if (findBest) {
- for (i = 0; i < max_ids; ++i) {
- device = test_ids[i];
- sprintf(timername, "hw:CLASS=%i,SCLASS=%i,CARD=%i,DEV=%i,SUBDEV=%i", devclass, sclass, card, device, subdevice);
- if ((err = snd_timer_open(&handle, timername, SND_TIMER_OPEN_NONBLOCK)) < 0) {
- continue;
- }
- if ((err = snd_timer_info(handle, info)) < 0) {
- snd_timer_close(handle);
- continue;
- }
- // select a non slave timer with the lowest resolution value
- int is_slave = snd_timer_info_is_slave(info);
- long res = snd_timer_info_get_resolution(info);
- if ((is_slave == 0) && (best_res > res)) {
- best_res = res;
- best_dev = device;
- }
- snd_timer_close(handle);
- }
- device = best_dev;
- }
-
- // p3.3.51 Removed.
- //if(best_dev==-1)
- // return -1; // no working timer found
-
- sprintf(timername, "hw:CLASS=%i,SCLASS=%i,CARD=%i,DEV=%i,SUBDEV=%i", devclass, sclass, card, device, subdevice);
- if ((err = snd_timer_open(&handle, timername, SND_TIMER_OPEN_NONBLOCK))<0) {
- fprintf(stderr, "AlsaTimer::initTimer(): timer open %i (%s)\n", err, snd_strerror(err));
- return -1; // p3.3.51
- }
-
- if ((err = snd_timer_info(handle, info)) < 0) {
- fprintf(stderr, "AlsaTimer::initTimer(): timer info %i (%s)\n", err, snd_strerror(err));
- return -1;
- }
-
- //if(debugMsg)
- fprintf(stderr, "AlsaTimer::initTimer(): best available ALSA timer: %s\n", snd_timer_info_get_name(info));
-
- snd_timer_params_set_auto_start(params, 1);
- snd_timer_params_set_ticks(params, 1);
-
- if ((err = snd_timer_params(handle, params)) < 0) {
- fprintf(stderr, "AlsaTimer::initTimer(): timer params %i (%s)\n", err, snd_strerror(err));
- return -1;
- }
-
- count = snd_timer_poll_descriptors_count(handle);
- fds = (pollfd *)calloc(count, sizeof(pollfd));
- if (fds == NULL) {
- fprintf(stderr, "AlsaTimer::initTimer(): malloc error\n");
- return -1;
- }
- if ((err = snd_timer_poll_descriptors(handle, fds, count)) < 0) {
- fprintf(stderr, "AlsaTimer::initTimer(): snd_timer_poll_descriptors error: %s\n", snd_strerror(err));
- return -1;
- }
- return fds->fd;
- }
-
- unsigned int AlsaTimer::setTimerResolution(unsigned int resolution)
- {
- if(TIMER_DEBUG)
- printf("AlsaTimer::setTimerResolution(%d)\n",resolution);
- /* Resolution of an AlsaTimer is fixed - it cannot be set */
- return 0;
- }
-
- unsigned int AlsaTimer::setTimerFreq(unsigned int freq)
- {
- signed int err;
- unsigned int setTick, actFreq;
-
- if(TIMER_DEBUG)
- printf("AlsaTimer::setTimerFreq(this=%p)\n",this);
-
- setTick = (1000000000 / snd_timer_info_get_resolution(info)) / freq;
-
- if (setTick == 0) {
- // return, print error if freq is below 500 (timing will suffer)
- if (((1000000000.0 / snd_timer_info_get_resolution(info)) / snd_timer_params_get_ticks(params)) < 500) {
- fprintf(stderr,"AlsaTimer::setTimerTicks(): requested freq %u Hz too high for timer (max is %g)\n",
- freq, 1000000000.0 / snd_timer_info_get_resolution(info));
- fprintf(stderr," freq stays at %ld Hz\n",
- (long int)((1000000000.0 / snd_timer_info_get_resolution(info)) / snd_timer_params_get_ticks(params)));
- }
-
- return 0;
- }
- actFreq = (1000000000 / snd_timer_info_get_resolution(info)) / setTick;
- if (actFreq != freq) {
- fprintf(stderr,"AlsaTimer::setTimerTicks(): warning: requested %u Hz, actual freq is %u Hz\n",
- freq, actFreq);
- }
- if(TIMER_DEBUG)
- printf("AlsaTimer::setTimerFreq(): Setting ticks (period) to %d ticks\n", setTick);
- snd_timer_params_set_auto_start(params, 1);
- snd_timer_params_set_ticks(params, setTick);
- if ((err = snd_timer_params(handle, params)) < 0) {
- fprintf(stderr, "AlsaTimer::setTimerFreq(): timer params %i (%s)\n", err, snd_strerror(err));
- return 0;
- }
-
- return actFreq;
- }
-
- unsigned int AlsaTimer::getTimerResolution()
- {
- return snd_timer_info_get_resolution(info);
- }
-
- unsigned int AlsaTimer::getTimerFreq()
- {
- return (1000000000 / snd_timer_info_get_resolution(info)) / snd_timer_params_get_ticks(params);
- }
-
- bool AlsaTimer::startTimer()
- {
- if(TIMER_DEBUG)
- printf("AlsaTimer::startTimer(this=%p): handle=%p\n",this,handle);
- int err;
- if ((err = snd_timer_start(handle)) < 0) {
- fprintf(stderr, "AlsaTimer::startTimer(): timer start %i (%s)\n", err, snd_strerror(err));
- return false;
- }
- return true;
- }
-
- bool AlsaTimer::stopTimer()
- {
- int err;
- if(TIMER_DEBUG)
- printf("AlsaTimer::stopTimer(this=%p): handle=%p\n",this,handle);
- if ((err = snd_timer_stop(handle)) < 0) {
- fprintf(stderr, "AlsaTimer::stopTimer(): timer stop %i (%s)\n", err, snd_strerror(err));
- return false;
- }
- return true;
- }
-
- unsigned int AlsaTimer::getTimerTicks(bool printTicks)
- {
- //if(TIMER_DEBUG)
- // printf("AlsaTimer::getTimerTicks\n");
- snd_timer_read_t tr;
- tr.ticks = 0;
- while (snd_timer_read(handle, &tr, sizeof(tr)) == sizeof(tr)) {
- if (printTicks) {
- printf("TIMER: resolution = %uns, ticks = %u\n",
- tr.resolution, tr.ticks);
- }
- }
- return tr.ticks;
- }
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