/** * 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., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, 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 <stdlib.h> #include <time.h> #include <errno.h> #include <stdarg.h> #ifdef HAVE_MALLOC_H #include <malloc.h> #endif #ifndef AL_NO_UID_DEFS #if defined(HAVE_GUIDDEF_H) || defined(HAVE_INITGUID_H) #define INITGUID #include <windows.h> #ifdef HAVE_GUIDDEF_H #include <guiddef.h> #else #include <initguid.h> #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); #ifdef HAVE_MMDEVAPI #include <devpropdef.h> DEFINE_DEVPROPKEY(DEVPKEY_Device_FriendlyName, 0xa45c254e, 0xdf1c, 0x4efd, 0x80,0x20, 0x67,0xd1,0x46,0xa8,0x50,0xe0, 14); #endif #endif #endif /* AL_NO_UID_DEFS */ #ifdef HAVE_DLFCN_H #include <dlfcn.h> #endif #ifdef HAVE_CPUID_H #include <cpuid.h> #endif #ifdef HAVE_SYS_SYSCONF_H #include <sys/sysconf.h> #endif #ifdef HAVE_FLOAT_H #include <float.h> #endif #ifdef HAVE_IEEEFP_H #include <ieeefp.h> #endif #ifdef _WIN32_IE #include <shlobj.h> #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_CPUID_H) && (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; } } } #elif defined(HAVE_WINDOWS_H) HMODULE k32 = GetModuleHandleA("kernel32.dll"); BOOL (WINAPI*IsProcessorFeaturePresent)(DWORD ProcessorFeature); IsProcessorFeaturePresent = (BOOL(WINAPI*)(DWORD))GetProcAddress(k32, "IsProcessorFeaturePresent"); if(!IsProcessorFeaturePresent) ERR("IsProcessorFeaturePresent not available; CPU caps not detected\n"); else { if(IsProcessorFeaturePresent(PF_XMMI_INSTRUCTIONS_AVAILABLE)) { caps |= CPU_CAP_SSE; if(IsProcessorFeaturePresent(PF_XMMI64_INSTRUCTIONS_AVAILABLE)) caps |= CPU_CAP_SSE2; } } #endif #ifdef HAVE_NEON /* Assume Neon support if compiled with it */ caps |= CPU_CAP_NEON; #endif TRACE("Got caps:%s%s%s%s\n", ((caps&CPU_CAP_SSE)?((capfilter&CPU_CAP_SSE)?" SSE":" (SSE)"):""), ((caps&CPU_CAP_SSE2)?((capfilter&CPU_CAP_SSE2)?" SSE2":" (SSE2)"):""), ((caps&CPU_CAP_NEON)?((capfilter&CPU_CAP_NEON)?" Neon":" (Neon)"):""), ((!caps)?" -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(((ALintptrEXT)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 } #if (defined(HAVE___CONTROL87_2) || defined(HAVE__CONTROLFP)) && (defined(__x86_64__) || defined(_M_X64)) /* Win64 doesn't allow us to set the precision control. */ #undef _MCW_PC #define _MCW_PC 0 #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|_PC_24, _MCW_RC|_MCW_PC, &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|_PC_24, _MCW_RC|_MCW_PC); #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|_MCW_PC, &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|_MCW_PC); #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; } #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 #endif 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); } #ifdef _WIN32 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; int i; /* If the path is absolute, open it directly. */ if(fname[0] != '\0' && fname[1] == ':' && is_slash(fname[2])) { FILE *f; if((f=al_fopen(fname, "rb")) != NULL) { TRACE("Opened %s\n", fname); return f; } WARN("Could not open %s\n", fname); return NULL; } wname = FromUTF8(fname); wsubdir = FromUTF8(subdir); if(!wname) ERR("Failed to convert UTF-8 filename: \"%s\"\n", fname); else if(!wsubdir) ERR("Failed to convert UTF-8 subdir: \"%s\"\n", subdir); else for(i = 0;i < 2;i++) { WCHAR buffer[PATH_MAX]; size_t len; FILE *f; 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) { TRACE("Opened %ls\n", buffer); return f; } WARN("Could not open %ls\n", buffer); } free(wname); free(wsubdir); return NULL; } #else 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((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; } WARN("Could not open %s\n", buffer); } 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\n", buffer); } return NULL; } #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(void *ptr, size_t base_size, size_t obj_count, size_t obj_size, ALboolean exact) { vector_ *vecptr = ptr; if((size_t)(*vecptr ? (*vecptr)->Capacity : 0) < obj_count) { ALsizei old_size = (*vecptr ? (*vecptr)->Size : 0); void *temp; /* Limit vector sizes to the greatest power-of-two value that an * ALsizei can hold. */ if(obj_count > (INT_MAX>>1)+1) return AL_FALSE; /* 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 = 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 = (ALsizei)obj_count; (*vecptr)->Size = old_size; } return AL_TRUE; } ALboolean vector_resize(void *ptr, size_t base_size, size_t obj_count, size_t obj_size) { vector_ *vecptr = ptr; if(*vecptr || obj_count > 0) { if(!vector_reserve(vecptr, base_size, obj_count, obj_size, AL_TRUE)) return AL_FALSE; (*vecptr)->Size = (ALsizei)obj_count; } return AL_TRUE; } ALboolean vector_insert(void *ptr, size_t base_size, size_t obj_size, void *ins_pos, const void *datstart, const void *datend) { vector_ *vecptr = ptr; if(datstart != datend) { ptrdiff_t ins_elem = ((char*)ins_pos - ((char*)(*vecptr) + base_size)) / obj_size; ptrdiff_t numins = ((const char*)datend - (const char*)datstart) / obj_size; if(!vector_reserve(vecptr, base_size, VECTOR_SIZE(*vecptr)+numins, obj_size, AL_TRUE)) return AL_FALSE; /* NOTE: ins_pos may have been invalidated if *vecptr moved. Use ins_elem instead. */ if(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 += (ALsizei)numins; } return AL_TRUE; } extern inline ALsizei 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, ALsizei str1len, const al_string_char_type *str2, ALsizei str2len) { ALsizei complen = mini(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, (ALsizei)strlen(str2)); } void al_string_copy(al_string *str, const_al_string from) { ALsizei len = VECTOR_SIZE(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