diff options
Diffstat (limited to 'Alc/hrtf.c')
| -rw-r--r-- | Alc/hrtf.c | 140 |
1 files changed, 81 insertions, 59 deletions
@@ -46,6 +46,12 @@ #define MIN_AZ_COUNT (1) #define MAX_AZ_COUNT (128) +struct HrtfEntry { + struct HrtfEntry *next; + struct Hrtf *handle; + char filename[]; +}; + static const ALchar magicMarker00[8] = "MinPHR00"; static const ALchar magicMarker01[8] = "MinPHR01"; @@ -240,7 +246,7 @@ ALsizei BuildBFormatHrtf(const struct Hrtf *Hrtf, DirectHrtfState *state, ALsize static struct Hrtf *CreateHrtfStore(ALuint rate, ALsizei irSize, ALsizei evCount, ALsizei irCount, const ALubyte *azCount, const ALushort *evOffset, const ALshort *coeffs, const ALubyte *delays, - const_al_string filename) + const char *filename) { struct Hrtf *Hrtf; size_t total; @@ -255,7 +261,7 @@ static struct Hrtf *CreateHrtfStore(ALuint rate, ALsizei irSize, ALsizei evCount Hrtf = al_calloc(16, total); if(Hrtf == NULL) - ERR("Out of memory allocating storage for %s.\n", alstr_get_cstr(filename)); + ERR("Out of memory allocating storage for %s.\n", filename); else { uintptr_t offset = sizeof(struct Hrtf); @@ -298,7 +304,7 @@ static struct Hrtf *CreateHrtfStore(ALuint rate, ALsizei irSize, ALsizei evCount return Hrtf; } -static struct Hrtf *LoadHrtf00(const ALubyte *data, size_t datalen, const_al_string filename) +static struct Hrtf *LoadHrtf00(const ALubyte *data, size_t datalen, const char *filename) { const ALubyte maxDelay = HRTF_HISTORY_LENGTH-1; struct Hrtf *Hrtf = NULL; @@ -314,8 +320,7 @@ static struct Hrtf *LoadHrtf00(const ALubyte *data, size_t datalen, const_al_str if(datalen < 9) { - ERR("Unexpected end of %s data (req %d, rem "SZFMT")\n", - alstr_get_cstr(filename), 9, datalen); + ERR("Unexpected end of %s data (req %d, rem "SZFMT")\n", filename, 9, datalen); return NULL; } @@ -353,8 +358,7 @@ static struct Hrtf *LoadHrtf00(const ALubyte *data, size_t datalen, const_al_str if(datalen < evCount*2) { - ERR("Unexpected end of %s data (req %d, rem "SZFMT")\n", - alstr_get_cstr(filename), evCount*2, datalen); + ERR("Unexpected end of %s data (req %d, rem "SZFMT")\n", filename, evCount*2, datalen); return NULL; } @@ -423,7 +427,7 @@ static struct Hrtf *LoadHrtf00(const ALubyte *data, size_t datalen, const_al_str if(datalen < reqsize) { ERR("Unexpected end of %s data (req "SZFMT", rem "SZFMT")\n", - alstr_get_cstr(filename), reqsize, datalen); + filename, reqsize, datalen); failed = AL_TRUE; } } @@ -463,7 +467,7 @@ static struct Hrtf *LoadHrtf00(const ALubyte *data, size_t datalen, const_al_str return Hrtf; } -static struct Hrtf *LoadHrtf01(const ALubyte *data, size_t datalen, const_al_string filename) +static struct Hrtf *LoadHrtf01(const ALubyte *data, size_t datalen, const char *filename) { const ALubyte maxDelay = HRTF_HISTORY_LENGTH-1; struct Hrtf *Hrtf = NULL; @@ -478,8 +482,7 @@ static struct Hrtf *LoadHrtf01(const ALubyte *data, size_t datalen, const_al_str if(datalen < 6) { - ERR("Unexpected end of %s data (req %d, rem "SZFMT"\n", - alstr_get_cstr(filename), 6, datalen); + ERR("Unexpected end of %s data (req %d, rem "SZFMT"\n", filename, 6, datalen); return NULL; } @@ -512,8 +515,7 @@ static struct Hrtf *LoadHrtf01(const ALubyte *data, size_t datalen, const_al_str if(datalen < evCount) { - ERR("Unexpected end of %s data (req %d, rem "SZFMT"\n", - alstr_get_cstr(filename), evCount, datalen); + ERR("Unexpected end of %s data (req %d, rem "SZFMT"\n", filename, evCount, datalen); return NULL; } @@ -565,7 +567,7 @@ static struct Hrtf *LoadHrtf01(const ALubyte *data, size_t datalen, const_al_str if(datalen < reqsize) { ERR("Unexpected end of %s data (req "SZFMT", rem "SZFMT"\n", - alstr_get_cstr(filename), reqsize, datalen); + filename, reqsize, datalen); failed = AL_TRUE; } } @@ -610,9 +612,7 @@ static void AddFileEntry(vector_EnumeratedHrtf *list, const_al_string filename) { EnumeratedHrtf entry = { AL_STRING_INIT_STATIC(), NULL }; struct HrtfEntry *loaded_entry; - struct Hrtf *hrtf = NULL; const EnumeratedHrtf *iter; - struct FileMapping fmap; const char *name; const char *ext; int i; @@ -639,51 +639,14 @@ static void AddFileEntry(vector_EnumeratedHrtf *list, const_al_string filename) loaded_entry = loaded_entry->next; } - TRACE("Loading %s...\n", alstr_get_cstr(filename)); - fmap = MapFileToMem(alstr_get_cstr(filename)); - if(fmap.ptr == NULL) - { - ERR("Could not open %s\n", alstr_get_cstr(filename)); - return; - } - - if(fmap.len < sizeof(magicMarker01)) - ERR("%s data is too short ("SZFMT" bytes)\n", alstr_get_cstr(filename), fmap.len); - else if(memcmp(fmap.ptr, magicMarker01, sizeof(magicMarker01)) == 0) - { - TRACE("Detected data set format v1\n"); - hrtf = LoadHrtf01((const ALubyte*)fmap.ptr+sizeof(magicMarker01), - fmap.len-sizeof(magicMarker01), filename - ); - } - else if(memcmp(fmap.ptr, magicMarker00, sizeof(magicMarker00)) == 0) - { - TRACE("Detected data set format v0\n"); - hrtf = LoadHrtf00((const ALubyte*)fmap.ptr+sizeof(magicMarker00), - fmap.len-sizeof(magicMarker00), filename - ); - } - else - ERR("Invalid header in %s: \"%.8s\"\n", alstr_get_cstr(filename), (const char*)fmap.ptr); - UnmapFileMem(&fmap); - - if(!hrtf) - { - ERR("Failed to load %s\n", alstr_get_cstr(filename)); - return; - } - loaded_entry = al_calloc(DEF_ALIGN, offsetof(struct HrtfEntry, filename[alstr_length(filename)+1]) ); loaded_entry->next = LoadedHrtfs; - loaded_entry->handle = hrtf; + loaded_entry->handle = NULL; strcpy(loaded_entry->filename, alstr_get_cstr(filename)); LoadedHrtfs = loaded_entry; - TRACE("Loaded HRTF support for format: %s %uhz\n", - DevFmtChannelsString(DevFmtStereo), hrtf->sampleRate); - skip_load: /* TODO: Get a human-readable name from the HRTF data (possibly coming in a * format update). */ @@ -762,19 +725,19 @@ static void AddBuiltInEntry(vector_EnumeratedHrtf *list, const ALubyte *data, si if(memcmp(data, magicMarker01, sizeof(magicMarker01)) == 0) { TRACE("Detected data set format v1\n"); - hrtf = LoadHrtf01(data+sizeof(magicMarker01), - datalen-sizeof(magicMarker01), filename + hrtf = LoadHrtf01((const ALubyte*)data+sizeof(magicMarker01), + datalen-sizeof(magicMarker01), alstr_get_cstr(filename) ); } else if(memcmp(data, magicMarker00, sizeof(magicMarker00)) == 0) { TRACE("Detected data set format v0\n"); - hrtf = LoadHrtf00(data+sizeof(magicMarker00), - datalen-sizeof(magicMarker00), filename + hrtf = LoadHrtf00((const ALubyte*)data+sizeof(magicMarker00), + datalen-sizeof(magicMarker00), alstr_get_cstr(filename) ); } else - ERR("Invalid header in %s: \"%.8s\"\n", alstr_get_cstr(filename), data); + ERR("Invalid header in %s: \"%.8s\"\n", alstr_get_cstr(filename), (const char*)data); if(!hrtf) { @@ -1032,6 +995,65 @@ void FreeHrtfList(vector_EnumeratedHrtf *list) #undef CLEAR_ENTRY } +struct Hrtf *GetLoadedHrtf(struct HrtfEntry *entry) +{ + static ATOMIC_FLAG LoadLock = ATOMIC_FLAG_INIT; + struct Hrtf *hrtf = NULL; + struct FileMapping fmap; + + while(ATOMIC_FLAG_TEST_AND_SET(&LoadLock, almemory_order_seq_cst)) + althrd_yield(); + + if(entry->handle) + { + hrtf = entry->handle; + goto done; + } + + TRACE("Loading %s...\n", entry->filename); + fmap = MapFileToMem(entry->filename); + if(fmap.ptr == NULL) + { + ERR("Could not open %s\n", entry->filename); + goto done; + } + + if(fmap.len < sizeof(magicMarker01)) + ERR("%s data is too short ("SZFMT" bytes)\n", entry->filename, fmap.len); + else if(memcmp(fmap.ptr, magicMarker01, sizeof(magicMarker01)) == 0) + { + TRACE("Detected data set format v1\n"); + hrtf = LoadHrtf01((const ALubyte*)fmap.ptr+sizeof(magicMarker01), + fmap.len-sizeof(magicMarker01), entry->filename + ); + } + else if(memcmp(fmap.ptr, magicMarker00, sizeof(magicMarker00)) == 0) + { + TRACE("Detected data set format v0\n"); + hrtf = LoadHrtf00((const ALubyte*)fmap.ptr+sizeof(magicMarker00), + fmap.len-sizeof(magicMarker00), entry->filename + ); + } + else + ERR("Invalid header in %s: \"%.8s\"\n", entry->filename, (const char*)fmap.ptr); + UnmapFileMem(&fmap); + + if(!hrtf) + { + ERR("Failed to load %s\n", entry->filename); + goto done; + } + + TRACE("Loaded HRTF support for format: %s %uhz\n", + DevFmtChannelsString(DevFmtStereo), hrtf->sampleRate); + + entry->handle = hrtf; + +done: + ATOMIC_FLAG_CLEAR(&LoadLock, almemory_order_seq_cst); + return hrtf; +} + void FreeHrtfs(void) { |