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https://github.com/ZDoom/fluidsynth.git
synced 2024-12-11 21:31:18 +00:00
Add synth.lock-memory option (possibility to avoid mlock)
Closes ticket #111. Sometimes, e g in a fast-render scenario or other scenarios where low latency is not important, you can turn off mlock to reduce memory pressure (and thus allow the soundfont to swap to disk).
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5f3568deee
commit
5b2e24a762
4 changed files with 54 additions and 39 deletions
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@ -600,6 +600,7 @@ int main(int argc, char** argv)
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interactive = 0;
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with_server = 0;
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fluid_settings_setstr(settings, "player.timing-source", "sample");
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fluid_settings_setint(settings, "synth.lock-memory", 0);
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fluid_settings_setint(settings, "synth.parallel-render", 1); /* TODO: Fast_render should not need this, but currently do */
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}
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@ -31,7 +31,7 @@
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* SFONT LOADER
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*/
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fluid_sfloader_t* new_fluid_defsfloader()
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fluid_sfloader_t* new_fluid_defsfloader(fluid_settings_t* settings)
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{
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fluid_sfloader_t* loader;
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@ -41,7 +41,7 @@ fluid_sfloader_t* new_fluid_defsfloader()
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return NULL;
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}
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loader->data = NULL;
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loader->data = settings;
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loader->free = delete_fluid_defsfloader;
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loader->load = fluid_defsfloader_load;
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@ -61,7 +61,7 @@ fluid_sfont_t* fluid_defsfloader_load(fluid_sfloader_t* loader, const char* file
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fluid_defsfont_t* defsfont;
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fluid_sfont_t* sfont;
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defsfont = new_fluid_defsfont();
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defsfont = new_fluid_defsfont(loader->data);
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if (defsfont == NULL) {
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return NULL;
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@ -200,12 +200,13 @@ int fluid_defpreset_preset_noteon(fluid_preset_t* preset, fluid_synth_t* synth,
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* CACHED SAMPLEDATA LOADER
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*/
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typedef struct _fluid_cached_sampledata_t{
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typedef struct _fluid_cached_sampledata_t {
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struct _fluid_cached_sampledata_t *next;
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char* filename;
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time_t modification_time;
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int num_references;
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int mlock;
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const short* sampledata;
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unsigned int samplesize;
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@ -231,7 +232,8 @@ static int fluid_get_file_modification_time(char *filename, time_t *modification
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#endif
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}
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static int fluid_cached_sampledata_load(char *filename, unsigned int samplepos, unsigned int samplesize, short **sampledata)
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static int fluid_cached_sampledata_load(char *filename, unsigned int samplepos,
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unsigned int samplesize, short **sampledata, int try_mlock)
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{
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fluid_file fd = NULL;
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short *loaded_sampledata = NULL;
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@ -245,25 +247,27 @@ static int fluid_cached_sampledata_load(char *filename, unsigned int samplepos,
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modification_time = 0;
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}
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cached_sampledata = all_cached_sampledata;
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while (cached_sampledata != NULL) {
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if (!strcmp(filename, cached_sampledata->filename)) {
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if (cached_sampledata->modification_time == modification_time) {
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if (cached_sampledata->samplesize != samplesize) {
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FLUID_LOG(FLUID_ERR, "Cached size of soundfont doesn't match actual size of soundfont (cached: %u. actual: %u)",
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cached_sampledata->samplesize,samplesize);
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} else {
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cached_sampledata->num_references++;
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loaded_sampledata = (short*) cached_sampledata->sampledata;
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goto success_exit;
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}
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}
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for (cached_sampledata = all_cached_sampledata; cached_sampledata; cached_sampledata = cached_sampledata->next) {
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if (strcmp(filename, cached_sampledata->filename))
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continue;
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if (cached_sampledata->modification_time != modification_time)
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continue;
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if (cached_sampledata->samplesize != samplesize) {
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FLUID_LOG(FLUID_ERR, "Cached size of soundfont doesn't match actual size of soundfont (cached: %u. actual: %u)",
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cached_sampledata->samplesize, samplesize);
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continue;
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}
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cached_sampledata = cached_sampledata->next;
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if (try_mlock && !cached_sampledata->mlock) {
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if (fluid_mlock(*sampledata, samplesize) != 0)
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FLUID_LOG(FLUID_WARN, "Failed to pin the sample data to RAM; swapping is possible.");
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else
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cached_sampledata->mlock = try_mlock;
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}
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cached_sampledata->num_references++;
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loaded_sampledata = (short*) cached_sampledata->sampledata;
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goto success_exit;
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}
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fd = FLUID_FOPEN(filename, "rb");
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@ -291,10 +295,21 @@ static int fluid_cached_sampledata_load(char *filename, unsigned int samplepos,
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FLUID_FCLOSE(fd);
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fd = NULL;
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cached_sampledata = (fluid_cached_sampledata_t*) FLUID_MALLOC(sizeof(fluid_cached_sampledata_t));
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if (cached_sampledata == NULL) {
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FLUID_LOG(FLUID_ERR, "Out of memory.");
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goto error_exit;
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}
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/* Lock the memory to disable paging. It's okay if this fails. It
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probably means that the user doesn't have to required permission. */
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if (fluid_mlock(*sampledata, samplesize) != 0) {
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FLUID_LOG(FLUID_WARN, "Failed to pin the sample data to RAM; swapping is possible.");
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cached_sampledata->mlock = 0;
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if (try_mlock) {
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if (fluid_mlock(*sampledata, samplesize) != 0)
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FLUID_LOG(FLUID_WARN, "Failed to pin the sample data to RAM; swapping is possible.");
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else
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cached_sampledata->mlock = try_mlock;
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}
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/* If this machine is big endian, the sample have to byte swapped */
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@ -312,12 +327,6 @@ static int fluid_cached_sampledata_load(char *filename, unsigned int samplepos,
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}
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}
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cached_sampledata = (fluid_cached_sampledata_t*) FLUID_MALLOC(sizeof(fluid_cached_sampledata_t));
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if (cached_sampledata == NULL) {
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FLUID_LOG(FLUID_ERR, "Out of memory.");
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goto error_exit;
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}
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cached_sampledata->filename = (char*) FLUID_MALLOC(strlen(filename) + 1);
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if (cached_sampledata->filename == NULL) {
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FLUID_LOG(FLUID_ERR, "Out of memory.");
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@ -373,7 +382,8 @@ static int fluid_cached_sampledata_unload(const short *sampledata)
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cached_sampledata->num_references--;
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if (cached_sampledata->num_references == 0) {
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fluid_munlock(cached_sampledata->sampledata, cached_sampledata->samplesize);
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if (cached_sampledata->mlock)
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fluid_munlock(cached_sampledata->sampledata, cached_sampledata->samplesize);
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FLUID_FREE((short*) cached_sampledata->sampledata);
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FLUID_FREE(cached_sampledata->filename);
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@ -416,7 +426,7 @@ static int fluid_cached_sampledata_unload(const short *sampledata)
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/*
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* new_fluid_defsfont
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*/
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fluid_defsfont_t* new_fluid_defsfont()
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fluid_defsfont_t* new_fluid_defsfont(fluid_settings_t* settings)
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{
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fluid_defsfont_t* sfont;
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@ -432,6 +442,7 @@ fluid_defsfont_t* new_fluid_defsfont()
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sfont->sample = NULL;
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sfont->sampledata = NULL;
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sfont->preset = NULL;
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fluid_settings_getint(settings, "synth.lock-memory", &sfont->mlock);
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return sfont;
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}
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@ -616,7 +627,8 @@ int fluid_defsfont_add_preset(fluid_defsfont_t* sfont, fluid_defpreset_t* preset
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int
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fluid_defsfont_load_sampledata(fluid_defsfont_t* sfont)
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{
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return fluid_cached_sampledata_load(sfont->filename, sfont->samplepos, sfont->samplesize, &sfont->sampledata);
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return fluid_cached_sampledata_load(sfont->filename, sfont->samplepos,
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sfont->samplesize, &sfont->sampledata, sfont->mlock);
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}
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/*
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@ -375,7 +375,7 @@ typedef struct _fluid_inst_zone_t fluid_inst_zone_t;
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*/
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fluid_sfloader_t* new_fluid_defsfloader(void);
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fluid_sfloader_t* new_fluid_defsfloader(fluid_settings_t* settings);
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int delete_fluid_defsfloader(fluid_sfloader_t* loader);
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fluid_sfont_t* fluid_defsfloader_load(fluid_sfloader_t* loader, const char* filename);
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@ -405,13 +405,14 @@ struct _fluid_defsfont_t
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short* sampledata; /* the sample data, loaded in ram */
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fluid_list_t* sample; /* the samples in this soundfont */
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fluid_defpreset_t* preset; /* the presets of this soundfont */
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int mlock; /* Should we try memlock (avoid swapping)? */
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fluid_preset_t iter_preset; /* preset interface used in the iteration */
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fluid_defpreset_t* iter_cur; /* the current preset in the iteration */
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};
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fluid_defsfont_t* new_fluid_defsfont(void);
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fluid_defsfont_t* new_fluid_defsfont(fluid_settings_t* settings);
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int delete_fluid_defsfont(fluid_defsfont_t* sfont);
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int fluid_defsfont_load(fluid_defsfont_t* sfont, const char* file);
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char* fluid_defsfont_get_name(fluid_defsfont_t* sfont);
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@ -27,6 +27,7 @@
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#include "fluid_settings.h"
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#include "fluid_sfont.h"
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#include "fluid_hash.h"
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#include "fluid_defsfont.h"
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#ifdef TRAP_ON_FPE
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#define _GNU_SOURCE
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@ -110,8 +111,6 @@ static void fluid_synth_set_gen_LOCAL (fluid_synth_t* synth, int chan,
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static void fluid_synth_stop_LOCAL (fluid_synth_t *synth, unsigned int id);
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fluid_sfloader_t* new_fluid_defsfloader(void);
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/***************************************************************
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*
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@ -186,6 +185,8 @@ void fluid_synth_settings(fluid_settings_t* settings)
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FLUID_HINT_TOGGLED, NULL, NULL);
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fluid_settings_register_int(settings, "synth.ladspa.active", 0, 0, 1,
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FLUID_HINT_TOGGLED, NULL, NULL);
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fluid_settings_register_int(settings, "synth.lock-memory", 1, 0, 1,
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FLUID_HINT_TOGGLED, NULL, NULL);
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fluid_settings_register_str(settings, "midi.portname", "", 0, NULL, NULL);
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fluid_settings_register_int(settings, "synth.polyphony",
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@ -676,7 +677,7 @@ new_fluid_synth(fluid_settings_t *settings)
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#endif
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/* allocate and add the default sfont loader */
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loader = new_fluid_defsfloader();
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loader = new_fluid_defsfloader(settings);
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if (loader == NULL) {
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FLUID_LOG(FLUID_WARN, "Failed to create the default SoundFont loader");
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