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Make run faster on ARM CPUs using fast math approximation

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Use --fast-math to use sine/cosine tables and approximate atan2.
This commit is contained in:
Andreas Eversberg
2018-11-10 15:16:20 +01:00
parent e8429166c3
commit 32025915d5
17 changed files with 386 additions and 194 deletions
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11
src/libmobile/main_mobile.c
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@@ -41,6 +41,7 @@
#include "../libsdr/sdr_config.h"
#endif
#include "../liboptions/options.h"
#include "../libfm/fm.h"
#define DEFAULT_LO_OFFSET -1000000.0
@@ -69,6 +70,7 @@ static int send_patterns = 1;
static int release_on_disconnect = 1;
int loopback = 0;
int rt_prio = 1;
int fast_math = 0;
const char *write_tx_wave = NULL;
const char *write_rx_wave = NULL;
const char *read_tx_wave = NULL;
@@ -133,7 +135,7 @@ void main_mobile_print_help(const char *arg0, const char *ext_usage)
printf(" use one combined control+voice channel and one voice channels.\n");
printf(" -m --mncc-sock\n");
printf(" Disable built-in call contol and offer socket (to LCR)\n");
printf(" --mncc-name <name>\n");
printf(" --mncc-name <name>\n");
printf(" '/tmp/bsc_mncc' is used by default, give name to change socket to\n");
printf(" '/tmp/bsc_mncc_<name>'. (Useful to run multiple networks.)\n");
printf(" -t --tones 0 | 1\n");
@@ -143,6 +145,8 @@ void main_mobile_print_help(const char *arg0, const char *ext_usage)
printf(" Loopback test: 1 = internal | 2 = external | 3 = echo\n");
printf(" -r --realtime <prio>\n");
printf(" Set prio: 0 to diable, 99 for maximum (default = %d)\n", rt_prio);
printf(" --fast-math\n");
printf(" Use fast math approximation for slow CPU / ARM based systems.\n");
printf(" --write-rx-wave <file>\n");
printf(" Write received audio to given wave file.\n");
printf(" --write-tx-wave <file>\n");
@@ -181,6 +185,7 @@ void main_mobile_print_hotkeys(void)
#define OPT_READ_TX_WAVE 1004
#define OPT_CALL_SAMPLERATE 1005
#define OPT_MNCC_NAME 1006
#define OPT_FAST_MATH 1007
#define OPT_LIMESDR 1100
#define OPT_LIMESDR_MINI 1101
@@ -206,6 +211,7 @@ void main_mobile_add_options(void)
option_add('t', "tones", 1);
option_add('l', "loopback", 1);
option_add('r', "realtime", 1);
option_add(OPT_FAST_MATH, "fast-math", 0);
option_add(OPT_WRITE_RX_WAVE, "write-rx-wave", 1);
option_add(OPT_WRITE_TX_WAVE, "write-tx-wave", 1);
option_add(OPT_READ_RX_WAVE, "read-rx-wave", 1);
@@ -307,6 +313,9 @@ int main_mobile_handle_options(int short_option, int argi, char **argv)
case 'r':
rt_prio = atoi(argv[argi]);
break;
case OPT_FAST_MATH:
fast_math = 1;
break;
case OPT_WRITE_RX_WAVE:
write_rx_wave = strdup(argv[argi]);
break;