/** * OpenAL cross platform audio library * Copyright (C) 2011 by authors. * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * Or go to http://www.gnu.org/copyleft/lgpl.html */ #ifdef _WIN32 #ifdef __MINGW32__ #define _WIN32_IE 0x501 #else #define _WIN32_IE 0x400 #endif #endif #include "config.h" #include #include #include #include #ifdef HAVE_MALLOC_H #include #endif #ifdef HAVE_DIRENT_H #include #endif #ifndef AL_NO_UID_DEFS #if defined(HAVE_GUIDDEF_H) || defined(HAVE_INITGUID_H) #define INITGUID #include #ifdef HAVE_GUIDDEF_H #include #else #include #endif DEFINE_GUID(KSDATAFORMAT_SUBTYPE_PCM, 0x00000001, 0x0000, 0x0010, 0x80,0x00, 0x00,0xaa,0x00,0x38,0x9b,0x71); DEFINE_GUID(KSDATAFORMAT_SUBTYPE_IEEE_FLOAT, 0x00000003, 0x0000, 0x0010, 0x80,0x00, 0x00,0xaa,0x00,0x38,0x9b,0x71); DEFINE_GUID(IID_IDirectSoundNotify, 0xb0210783, 0x89cd, 0x11d0, 0xaf,0x08, 0x00,0xa0,0xc9,0x25,0xcd,0x16); DEFINE_GUID(CLSID_MMDeviceEnumerator, 0xbcde0395, 0xe52f, 0x467c, 0x8e,0x3d, 0xc4,0x57,0x92,0x91,0x69,0x2e); DEFINE_GUID(IID_IMMDeviceEnumerator, 0xa95664d2, 0x9614, 0x4f35, 0xa7,0x46, 0xde,0x8d,0xb6,0x36,0x17,0xe6); DEFINE_GUID(IID_IAudioClient, 0x1cb9ad4c, 0xdbfa, 0x4c32, 0xb1,0x78, 0xc2,0xf5,0x68,0xa7,0x03,0xb2); DEFINE_GUID(IID_IAudioRenderClient, 0xf294acfc, 0x3146, 0x4483, 0xa7,0xbf, 0xad,0xdc,0xa7,0xc2,0x60,0xe2); DEFINE_GUID(IID_IAudioCaptureClient, 0xc8adbd64, 0xe71e, 0x48a0, 0xa4,0xde, 0x18,0x5c,0x39,0x5c,0xd3,0x17); #ifdef HAVE_MMDEVAPI #include #include DEFINE_DEVPROPKEY(DEVPKEY_Device_FriendlyName, 0xa45c254e, 0xdf1c, 0x4efd, 0x80,0x20, 0x67,0xd1,0x46,0xa8,0x50,0xe0, 14); DEFINE_PROPERTYKEY(PKEY_AudioEndpoint_FormFactor, 0x1da5d803, 0xd492, 0x4edd, 0x8c,0x23, 0xe0,0xc0,0xff,0xee,0x7f,0x0e, 0); #endif #endif #endif /* AL_NO_UID_DEFS */ #ifdef HAVE_DLFCN_H #include #endif #ifdef HAVE_INTRIN_H #include #endif #ifdef HAVE_CPUID_H #include #endif #ifdef HAVE_SYS_SYSCONF_H #include #endif #ifdef HAVE_FLOAT_H #include #endif #ifdef HAVE_IEEEFP_H #include #endif #ifdef _WIN32_IE #include #endif #include "alMain.h" #include "alu.h" #include "atomic.h" #include "uintmap.h" #include "vector.h" #include "alstring.h" #include "compat.h" #include "threads.h" extern inline ALuint NextPowerOf2(ALuint value); extern inline ALint fastf2i(ALfloat f); extern inline ALuint fastf2u(ALfloat f); ALuint CPUCapFlags = 0; void FillCPUCaps(ALuint capfilter) { ALuint caps = 0; /* FIXME: We really should get this for all available CPUs in case different * CPUs have different caps (is that possible on one machine?). */ #if defined(HAVE_GCC_GET_CPUID) && (defined(__i386__) || defined(__x86_64__) || \ defined(_M_IX86) || defined(_M_X64)) union { unsigned int regs[4]; char str[sizeof(unsigned int[4])]; } cpuinf[3]; if(!__get_cpuid(0, &cpuinf[0].regs[0], &cpuinf[0].regs[1], &cpuinf[0].regs[2], &cpuinf[0].regs[3])) ERR("Failed to get CPUID\n"); else { unsigned int maxfunc = cpuinf[0].regs[0]; unsigned int maxextfunc = 0; if(__get_cpuid(0x80000000, &cpuinf[0].regs[0], &cpuinf[0].regs[1], &cpuinf[0].regs[2], &cpuinf[0].regs[3])) maxextfunc = cpuinf[0].regs[0]; TRACE("Detected max CPUID function: 0x%x (ext. 0x%x)\n", maxfunc, maxextfunc); TRACE("Vendor ID: \"%.4s%.4s%.4s\"\n", cpuinf[0].str+4, cpuinf[0].str+12, cpuinf[0].str+8); if(maxextfunc >= 0x80000004 && __get_cpuid(0x80000002, &cpuinf[0].regs[0], &cpuinf[0].regs[1], &cpuinf[0].regs[2], &cpuinf[0].regs[3]) && __get_cpuid(0x80000003, &cpuinf[1].regs[0], &cpuinf[1].regs[1], &cpuinf[1].regs[2], &cpuinf[1].regs[3]) && __get_cpuid(0x80000004, &cpuinf[2].regs[0], &cpuinf[2].regs[1], &cpuinf[2].regs[2], &cpuinf[2].regs[3])) TRACE("Name: \"%.16s%.16s%.16s\"\n", cpuinf[0].str, cpuinf[1].str, cpuinf[2].str); if(maxfunc >= 1 && __get_cpuid(1, &cpuinf[0].regs[0], &cpuinf[0].regs[1], &cpuinf[0].regs[2], &cpuinf[0].regs[3])) { if((cpuinf[0].regs[3]&(1<<25))) { caps |= CPU_CAP_SSE; if((cpuinf[0].regs[3]&(1<<26))) { caps |= CPU_CAP_SSE2; if((cpuinf[0].regs[2]&(1<<19))) caps |= CPU_CAP_SSE4_1; } } } } #elif defined(HAVE_CPUID_INTRINSIC) && (defined(__i386__) || defined(__x86_64__) || \ defined(_M_IX86) || defined(_M_X64)) union { int regs[4]; char str[sizeof(int[4])]; } cpuinf[3]; (__cpuid)(cpuinf[0].regs, 0); if(cpuinf[0].regs[0] == 0) ERR("Failed to get CPUID\n"); else { unsigned int maxfunc = cpuinf[0].regs[0]; unsigned int maxextfunc; (__cpuid)(cpuinf[0].regs, 0x80000000); maxextfunc = cpuinf[0].regs[0]; TRACE("Detected max CPUID function: 0x%x (ext. 0x%x)\n", maxfunc, maxextfunc); TRACE("Vendor ID: \"%.4s%.4s%.4s\"\n", cpuinf[0].str+4, cpuinf[0].str+12, cpuinf[0].str+8); if(maxextfunc >= 0x80000004) { (__cpuid)(cpuinf[0].regs, 0x80000002); (__cpuid)(cpuinf[1].regs, 0x80000003); (__cpuid)(cpuinf[2].regs, 0x80000004); TRACE("Name: \"%.16s%.16s%.16s\"\n", cpuinf[0].str, cpuinf[1].str, cpuinf[2].str); } if(maxfunc >= 1) { (__cpuid)(cpuinf[0].regs, 1); if((cpuinf[0].regs[3]&(1<<25))) { caps |= CPU_CAP_SSE; if((cpuinf[0].regs[3]&(1<<26))) { caps |= CPU_CAP_SSE2; if((cpuinf[0].regs[2]&(1<<19))) caps |= CPU_CAP_SSE4_1; } } } } #else /* Assume support for whatever's supported if we can't check for it */ #if defined(HAVE_SSE4_1) #warning "Assuming SSE 4.1 run-time support!" caps |= CPU_CAP_SSE | CPU_CAP_SSE2 | CPU_CAP_SSE4_1; #elif defined(HAVE_SSE2) #warning "Assuming SSE 2 run-time support!" caps |= CPU_CAP_SSE | CPU_CAP_SSE2; #elif defined(HAVE_SSE) #warning "Assuming SSE run-time support!" caps |= CPU_CAP_SSE; #endif #endif #ifdef HAVE_NEON /* Assume Neon support if compiled with it */ caps |= CPU_CAP_NEON; #endif TRACE("Extensions:%s%s%s%s%s\n", ((capfilter&CPU_CAP_SSE) ? ((caps&CPU_CAP_SSE) ? " +SSE" : " -SSE") : ""), ((capfilter&CPU_CAP_SSE2) ? ((caps&CPU_CAP_SSE2) ? " +SSE2" : " -SSE2") : ""), ((capfilter&CPU_CAP_SSE4_1) ? ((caps&CPU_CAP_SSE4_1) ? " +SSE4.1" : " -SSE4.1") : ""), ((capfilter&CPU_CAP_NEON) ? ((caps&CPU_CAP_NEON) ? " +Neon" : " -Neon") : ""), ((!capfilter) ? " -none-" : "") ); CPUCapFlags = caps & capfilter; } void *al_malloc(size_t alignment, size_t size) { #if defined(HAVE_ALIGNED_ALLOC) size = (size+(alignment-1))&~(alignment-1); return aligned_alloc(alignment, size); #elif defined(HAVE_POSIX_MEMALIGN) void *ret; if(posix_memalign(&ret, alignment, size) == 0) return ret; return NULL; #elif defined(HAVE__ALIGNED_MALLOC) return _aligned_malloc(size, alignment); #else char *ret = malloc(size+alignment); if(ret != NULL) { *(ret++) = 0x00; while(((ptrdiff_t)ret&(alignment-1)) != 0) *(ret++) = 0x55; } return ret; #endif } void *al_calloc(size_t alignment, size_t size) { void *ret = al_malloc(alignment, size); if(ret) memset(ret, 0, size); return ret; } void al_free(void *ptr) { #if defined(HAVE_ALIGNED_ALLOC) || defined(HAVE_POSIX_MEMALIGN) free(ptr); #elif defined(HAVE__ALIGNED_MALLOC) _aligned_free(ptr); #else if(ptr != NULL) { char *finder = ptr; do { --finder; } while(*finder == 0x55); free(finder); } #endif } void SetMixerFPUMode(FPUCtl *ctl) { #ifdef HAVE_FENV_H fegetenv(STATIC_CAST(fenv_t, ctl)); #if defined(__GNUC__) && defined(HAVE_SSE) if((CPUCapFlags&CPU_CAP_SSE)) __asm__ __volatile__("stmxcsr %0" : "=m" (*&ctl->sse_state)); #endif #ifdef FE_TOWARDZERO fesetround(FE_TOWARDZERO); #endif #if defined(__GNUC__) && defined(HAVE_SSE) if((CPUCapFlags&CPU_CAP_SSE)) { int sseState = ctl->sse_state; sseState |= 0x6000; /* set round-to-zero */ sseState |= 0x8000; /* set flush-to-zero */ if((CPUCapFlags&CPU_CAP_SSE2)) sseState |= 0x0040; /* set denormals-are-zero */ __asm__ __volatile__("ldmxcsr %0" : : "m" (*&sseState)); } #endif #elif defined(HAVE___CONTROL87_2) int mode; __control87_2(0, 0, &ctl->state, NULL); __control87_2(_RC_CHOP, _MCW_RC, &mode, NULL); #ifdef HAVE_SSE if((CPUCapFlags&CPU_CAP_SSE)) { __control87_2(0, 0, NULL, &ctl->sse_state); __control87_2(_RC_CHOP|_DN_FLUSH, _MCW_RC|_MCW_DN, NULL, &mode); } #endif #elif defined(HAVE__CONTROLFP) ctl->state = _controlfp(0, 0); (void)_controlfp(_RC_CHOP, _MCW_RC); #endif } void RestoreFPUMode(const FPUCtl *ctl) { #ifdef HAVE_FENV_H fesetenv(STATIC_CAST(fenv_t, ctl)); #if defined(__GNUC__) && defined(HAVE_SSE) if((CPUCapFlags&CPU_CAP_SSE)) __asm__ __volatile__("ldmxcsr %0" : : "m" (*&ctl->sse_state)); #endif #elif defined(HAVE___CONTROL87_2) int mode; __control87_2(ctl->state, _MCW_RC, &mode, NULL); #ifdef HAVE_SSE if((CPUCapFlags&CPU_CAP_SSE)) __control87_2(ctl->sse_state, _MCW_RC|_MCW_DN, NULL, &mode); #endif #elif defined(HAVE__CONTROLFP) _controlfp(ctl->state, _MCW_RC); #endif } #ifdef _WIN32 static WCHAR *FromUTF8(const char *str) { WCHAR *out = NULL; int len; if((len=MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0)) > 0) { out = calloc(sizeof(WCHAR), len); MultiByteToWideChar(CP_UTF8, 0, str, -1, out, len); } return out; } void *LoadLib(const char *name) { HANDLE hdl = NULL; WCHAR *wname; wname = FromUTF8(name); if(!wname) ERR("Failed to convert UTF-8 filename: \"%s\"\n", name); else { hdl = LoadLibraryW(wname); free(wname); } return hdl; } void CloseLib(void *handle) { FreeLibrary((HANDLE)handle); } void *GetSymbol(void *handle, const char *name) { void *ret; ret = (void*)GetProcAddress((HANDLE)handle, name); if(ret == NULL) ERR("Failed to load %s\n", name); return ret; } WCHAR *strdupW(const WCHAR *str) { const WCHAR *n; WCHAR *ret; size_t len; n = str; while(*n) n++; len = n - str; ret = calloc(sizeof(WCHAR), len+1); if(ret != NULL) memcpy(ret, str, sizeof(WCHAR)*len); return ret; } FILE *al_fopen(const char *fname, const char *mode) { WCHAR *wname=NULL, *wmode=NULL; FILE *file = NULL; wname = FromUTF8(fname); wmode = FromUTF8(mode); if(!wname) ERR("Failed to convert UTF-8 filename: \"%s\"\n", fname); else if(!wmode) ERR("Failed to convert UTF-8 mode: \"%s\"\n", mode); else file = _wfopen(wname, wmode); free(wname); free(wmode); return file; } void al_print(const char *type, const char *func, const char *fmt, ...) { char str[1024]; WCHAR *wstr; va_list ap; va_start(ap, fmt); vsnprintf(str, sizeof(str), fmt, ap); va_end(ap); str[sizeof(str)-1] = 0; wstr = FromUTF8(str); if(!wstr) fprintf(LogFile, "AL lib: %s %s: %s", type, func, str); else { fprintf(LogFile, "AL lib: %s %s: %ls", type, func, wstr); free(wstr); wstr = NULL; } fflush(LogFile); } static inline int is_slash(int c) { return (c == '\\' || c == '/'); } FILE *OpenDataFile(const char *fname, const char *subdir) { static const int ids[2] = { CSIDL_APPDATA, CSIDL_COMMON_APPDATA }; WCHAR *wname=NULL, *wsubdir=NULL; FILE *f; size_t i; wname = FromUTF8(fname); if(!wname) { ERR("Failed to convert UTF-8 filename: \"%s\"\n", fname); return NULL; } /* If the path is absolute, open it directly. */ if(wname[0] != '\0' && wname[1] == ':' && is_slash(wname[2])) { f = _wfopen(wname, L"rb"); if(f) TRACE("Opened %s\n", fname); else WARN("Could not open %s\n", fname); free(wname); return f; } /* Try the current directory first before the data directories. */ if((f=_wfopen(wname, L"rb")) != NULL) { TRACE("Opened %s\n", fname); free(wname); return f; } wsubdir = FromUTF8(subdir); if(!wsubdir) { ERR("Failed to convert UTF-8 subdir: \"%s\"\n", subdir); free(wname); return NULL; } for(i = 0;i < COUNTOF(ids);i++) { WCHAR buffer[PATH_MAX]; size_t len; if(SHGetSpecialFolderPathW(NULL, buffer, ids[i], FALSE) == FALSE) continue; len = lstrlenW(buffer); if(len > 0 && is_slash(buffer[len-1])) buffer[--len] = '\0'; _snwprintf(buffer+len, PATH_MAX-len, L"/%ls/%ls", wsubdir, wname); len = lstrlenW(buffer); while(len > 0) { --len; if(buffer[len] == '/') buffer[len] = '\\'; } if((f=_wfopen(buffer, L"rb")) != NULL) { al_string filepath = AL_STRING_INIT_STATIC(); al_string_copy_wcstr(&filepath, buffer); TRACE("Opened %s\n", al_string_get_cstr(filepath)); al_string_deinit(&filepath); break; } } free(wname); free(wsubdir); if(f == NULL) WARN("Could not open %s\\%s\n", subdir, fname); return f; } vector_al_string SearchDataFiles(const char *match, const char *subdir) { static RefCount search_lock; vector_al_string results = VECTOR_INIT_STATIC(); while(ATOMIC_EXCHANGE(uint, &search_lock, 1) == 1) althrd_yield(); ERR("FIXME\n"); ATOMIC_LOAD(&search_lock, 0); return results; } #else #ifdef HAVE_DLFCN_H void *LoadLib(const char *name) { const char *err; void *handle; dlerror(); handle = dlopen(name, RTLD_NOW); if((err=dlerror()) != NULL) handle = NULL; return handle; } void CloseLib(void *handle) { dlclose(handle); } void *GetSymbol(void *handle, const char *name) { const char *err; void *sym; dlerror(); sym = dlsym(handle, name); if((err=dlerror()) != NULL) { WARN("Failed to load %s: %s\n", name, err); sym = NULL; } return sym; } #endif /* HAVE_DLFCN_H */ void al_print(const char *type, const char *func, const char *fmt, ...) { va_list ap; va_start(ap, fmt); fprintf(LogFile, "AL lib: %s %s: ", type, func); vfprintf(LogFile, fmt, ap); va_end(ap); fflush(LogFile); } FILE *OpenDataFile(const char *fname, const char *subdir) { char buffer[PATH_MAX] = ""; const char *str, *next; FILE *f; if(fname[0] == '/') { if((f=al_fopen(fname, "rb")) != NULL) { TRACE("Opened %s\n", fname); return f; } WARN("Could not open %s\n", fname); return NULL; } if((f=al_fopen(fname, "rb")) != NULL) { TRACE("Opened %s\n", fname); return f; } if((str=getenv("XDG_DATA_HOME")) != NULL && str[0] != '\0') snprintf(buffer, sizeof(buffer), "%s/%s/%s", str, subdir, fname); else if((str=getenv("HOME")) != NULL && str[0] != '\0') snprintf(buffer, sizeof(buffer), "%s/.local/share/%s/%s", str, subdir, fname); if(buffer[0]) { if((f=al_fopen(buffer, "rb")) != NULL) { TRACE("Opened %s\n", buffer); return f; } } if((str=getenv("XDG_DATA_DIRS")) == NULL || str[0] == '\0') str = "/usr/local/share/:/usr/share/"; next = str; while((str=next) != NULL && str[0] != '\0') { size_t len; next = strchr(str, ':'); if(!next) len = strlen(str); else { len = next - str; next++; } if(len > sizeof(buffer)-1) len = sizeof(buffer)-1; strncpy(buffer, str, len); buffer[len] = '\0'; snprintf(buffer+len, sizeof(buffer)-len, "/%s/%s", subdir, fname); if((f=al_fopen(buffer, "rb")) != NULL) { TRACE("Opened %s\n", buffer); return f; } } WARN("Could not open %s/%s\n", subdir, fname); return NULL; } static const char *MatchString; static int MatchFilter(const struct dirent *dir) { const char *match = MatchString; const char *name = dir->d_name; int ret = 1; do { char *p = strchr(match, '%'); if(!p) ret = strcmp(match, name) == 0; else { size_t len = p-match; ret = strncmp(match, name, len) == 0; if(ret) { match += len; name += len; ++p; if(*p == 'r') { char *end; ret = strtoul(name, &end, 10) > 0; if(ret) name = end; ++p; } } } match = p; } while(ret && match && *match); return ret; } static void RecurseDirectorySearch(const char *path, const char *match, vector_al_string *results) { struct dirent **namelist; char *sep, *p; int n, i; if(!match[0]) return; sep = strrchr(match, '/'); p = strchr(match, '%'); if(!sep) { MatchString = match; TRACE("Searching %s for %s\n", path?path:"/", match); n = scandir(path?path:"/", &namelist, MatchFilter, alphasort); if(n >= 0) { for(i = 0;i < n;++i) { al_string str = AL_STRING_INIT_STATIC(); if(path) al_string_copy_cstr(&str, path); al_string_append_char(&str, '/'); al_string_append_cstr(&str, namelist[i]->d_name); TRACE("Got result %s\n", al_string_get_cstr(str)); VECTOR_PUSH_BACK(*results, str); free(namelist[i]); } free(namelist); } return; } if(!p || p-sep >= 0) { al_string npath = AL_STRING_INIT_STATIC(); if(path) al_string_append_cstr(&npath, path); al_string_append_char(&npath, '/'); al_string_append_range(&npath, match, sep); TRACE("Recursing into %s with %s\n", al_string_get_cstr(npath), sep+1); RecurseDirectorySearch(al_string_get_cstr(npath), sep+1, results); al_string_deinit(&npath); return; } sep = strchr(match, '/'); while(sep) { char *next = strchr(sep+1, '/'); if(next-p < 0) { al_string npath = AL_STRING_INIT_STATIC(); al_string nmatch = AL_STRING_INIT_STATIC(); if(path) al_string_append_cstr(&npath, path); al_string_append_char(&npath, '/'); al_string_append_range(&npath, match, sep); al_string_append_range(&nmatch, sep+1, next); MatchString = al_string_get_cstr(nmatch); TRACE("Searching %s for %s\n", al_string_get_cstr(npath), MatchString); n = scandir(al_string_get_cstr(npath), &namelist, MatchFilter, alphasort); if(n >= 0) { al_string ndir = AL_STRING_INIT_STATIC(); for(i = 0;i < n;++i) { al_string_copy(&ndir, npath); al_string_append_char(&ndir, '/'); al_string_append_cstr(&ndir, namelist[i]->d_name); free(namelist[i]); TRACE("Recursing %s with %s\n", al_string_get_cstr(ndir), next+1); RecurseDirectorySearch(al_string_get_cstr(ndir), next+1, results); } al_string_deinit(&ndir); free(namelist); } al_string_deinit(&nmatch); al_string_deinit(&npath); break; } } } vector_al_string SearchDataFiles(const char *match, const char *subdir) { static RefCount search_lock; vector_al_string results = VECTOR_INIT_STATIC(); while(ATOMIC_EXCHANGE(uint, &search_lock, 1) == 1) althrd_yield(); if(match[0] == '/') RecurseDirectorySearch(NULL, match+1, &results); else { al_string path = AL_STRING_INIT_STATIC(); const char *str, *next; // Search CWD RecurseDirectorySearch(".", match, &results); // Search local data dir if((str=getenv("XDG_DATA_HOME")) != NULL && str[0] != '\0') { al_string_append_cstr(&path, str); al_string_append_char(&path, '/'); al_string_append_cstr(&path, subdir); } else if((str=getenv("HOME")) != NULL && str[0] != '\0') { al_string_append_cstr(&path, str); al_string_append_cstr(&path, "/.local/share/"); al_string_append_cstr(&path, subdir); } if(!al_string_empty(path)) RecurseDirectorySearch(al_string_get_cstr(path), match, &results); // Search global data dirs if((str=getenv("XDG_DATA_DIRS")) == NULL || str[0] == '\0') str = "/usr/local/share/:/usr/share/"; next = str; while((str=next) != NULL && str[0] != '\0') { next = strchr(str, ':'); if(!next) al_string_copy_cstr(&path, str); else { al_string_clear(&path); al_string_append_range(&path, str, next); ++next; } al_string_append_char(&path, '/'); al_string_append_cstr(&path, subdir); RecurseDirectorySearch(al_string_get_cstr(path), match, &results); } al_string_deinit(&path); } ATOMIC_LOAD(&search_lock, 0); return results; } #endif void SetRTPriority(void) { ALboolean failed = AL_FALSE; #ifdef _WIN32 if(RTPrioLevel > 0) failed = !SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_TIME_CRITICAL); #elif defined(HAVE_PTHREAD_SETSCHEDPARAM) && !defined(__OpenBSD__) if(RTPrioLevel > 0) { struct sched_param param; /* Use the minimum real-time priority possible for now (on Linux this * should be 1 for SCHED_RR) */ param.sched_priority = sched_get_priority_min(SCHED_RR); failed = !!pthread_setschedparam(pthread_self(), SCHED_RR, ¶m); } #else /* Real-time priority not available */ failed = (RTPrioLevel>0); #endif if(failed) ERR("Failed to set priority level for thread\n"); } ALboolean vector_reserve(char *ptr, size_t base_size, size_t obj_size, size_t obj_count, ALboolean exact) { vector_ *vecptr = (vector_*)ptr; if((*vecptr ? (*vecptr)->Capacity : 0) < obj_count) { size_t old_size = (*vecptr ? (*vecptr)->Size : 0); void *temp; /* Use the next power-of-2 size if we don't need to allocate the exact * amount. This is preferred when regularly increasing the vector since * it means fewer reallocations. Though it means it also wastes some * memory. */ if(exact == AL_FALSE && obj_count < INT_MAX) obj_count = NextPowerOf2((ALuint)obj_count); /* Need to be explicit with the caller type's base size, because it * could have extra padding before the start of the array (that is, * sizeof(*vector_) may not equal base_size). */ temp = realloc(*vecptr, base_size + obj_size*obj_count); if(temp == NULL) return AL_FALSE; *vecptr = temp; (*vecptr)->Capacity = obj_count; (*vecptr)->Size = old_size; } return AL_TRUE; } ALboolean vector_resize(char *ptr, size_t base_size, size_t obj_size, size_t obj_count) { vector_ *vecptr = (vector_*)ptr; if(*vecptr || obj_count > 0) { if(!vector_reserve((char*)vecptr, base_size, obj_size, obj_count, AL_TRUE)) return AL_FALSE; (*vecptr)->Size = obj_count; } return AL_TRUE; } ALboolean vector_insert(char *ptr, size_t base_size, size_t obj_size, void *ins_pos, const void *datstart, const void *datend) { vector_ *vecptr = (vector_*)ptr; if(datstart != datend) { ptrdiff_t ins_elem = (*vecptr ? ((char*)ins_pos - ((char*)(*vecptr) + base_size)) : ((char*)ins_pos - (char*)NULL)) / obj_size; ptrdiff_t numins = ((const char*)datend - (const char*)datstart) / obj_size; assert(numins > 0); if((size_t)numins + VECTOR_SIZE(*vecptr) < (size_t)numins || !vector_reserve((char*)vecptr, base_size, obj_size, VECTOR_SIZE(*vecptr)+numins, AL_TRUE)) return AL_FALSE; /* NOTE: ins_pos may have been invalidated if *vecptr moved. Use ins_elem instead. */ if((size_t)ins_elem < (*vecptr)->Size) { memmove((char*)(*vecptr) + base_size + ((ins_elem+numins)*obj_size), (char*)(*vecptr) + base_size + ((ins_elem )*obj_size), ((*vecptr)->Size-ins_elem)*obj_size); } memcpy((char*)(*vecptr) + base_size + (ins_elem*obj_size), datstart, numins*obj_size); (*vecptr)->Size += numins; } return AL_TRUE; } extern inline void al_string_deinit(al_string *str); extern inline size_t al_string_length(const_al_string str); extern inline ALboolean al_string_empty(const_al_string str); extern inline const al_string_char_type *al_string_get_cstr(const_al_string str); void al_string_clear(al_string *str) { /* Reserve one more character than the total size of the string. This is to * ensure we have space to add a null terminator in the string data so it * can be used as a C-style string. */ VECTOR_RESERVE(*str, 1); VECTOR_RESIZE(*str, 0); *VECTOR_ITER_END(*str) = 0; } static inline int al_string_compare(const al_string_char_type *str1, size_t str1len, const al_string_char_type *str2, size_t str2len) { size_t complen = (str1len < str2len) ? str1len : str2len; int ret = memcmp(str1, str2, complen); if(ret == 0) { if(str1len > str2len) return 1; if(str1len < str2len) return -1; } return ret; } int al_string_cmp(const_al_string str1, const_al_string str2) { return al_string_compare(&VECTOR_FRONT(str1), al_string_length(str1), &VECTOR_FRONT(str2), al_string_length(str2)); } int al_string_cmp_cstr(const_al_string str1, const al_string_char_type *str2) { return al_string_compare(&VECTOR_FRONT(str1), al_string_length(str1), str2, strlen(str2)); } void al_string_copy(al_string *str, const_al_string from) { size_t len = al_string_length(from); VECTOR_RESERVE(*str, len+1); VECTOR_RESIZE(*str, 0); VECTOR_INSERT(*str, VECTOR_ITER_END(*str), VECTOR_ITER_BEGIN(from), VECTOR_ITER_BEGIN(from)+len); *VECTOR_ITER_END(*str) = 0; } void al_string_copy_cstr(al_string *str, const al_string_char_type *from) { size_t len = strlen(from); VECTOR_RESERVE(*str, len+1); VECTOR_RESIZE(*str, 0); VECTOR_INSERT(*str, VECTOR_ITER_END(*str), from, from+len); *VECTOR_ITER_END(*str) = 0; } void al_string_append_char(al_string *str, const al_string_char_type c) { VECTOR_RESERVE(*str, al_string_length(*str)+2); VECTOR_PUSH_BACK(*str, c); *VECTOR_ITER_END(*str) = 0; } void al_string_append_cstr(al_string *str, const al_string_char_type *from) { size_t len = strlen(from); if(len != 0) { VECTOR_RESERVE(*str, al_string_length(*str)+len+1); VECTOR_INSERT(*str, VECTOR_ITER_END(*str), from, from+len); *VECTOR_ITER_END(*str) = 0; } } void al_string_append_range(al_string *str, const al_string_char_type *from, const al_string_char_type *to) { if(to != from) { VECTOR_RESERVE(*str, al_string_length(*str)+(to-from)+1); VECTOR_INSERT(*str, VECTOR_ITER_END(*str), from, to); *VECTOR_ITER_END(*str) = 0; } } #ifdef _WIN32 void al_string_copy_wcstr(al_string *str, const wchar_t *from) { int len; if((len=WideCharToMultiByte(CP_UTF8, 0, from, -1, NULL, 0, NULL, NULL)) > 0) { VECTOR_RESERVE(*str, len); VECTOR_RESIZE(*str, len-1); WideCharToMultiByte(CP_UTF8, 0, from, -1, &VECTOR_FRONT(*str), len, NULL, NULL); *VECTOR_ITER_END(*str) = 0; } } #endif