-/**

- * 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 <stdlib.h>

-#include <time.h>

-#include <errno.h>

-#include <stdarg.h>

-#include <ctype.h>

-#ifdef HAVE_MALLOC_H

-#include <malloc.h>

-#endif

-#ifdef HAVE_DIRENT_H

-#include <dirent.h>

-#endif

-#ifdef HAVE_PROC_PIDPATH

-#include <libproc.h>

-#endif

-

-#ifdef __FreeBSD__

-#include <sys/types.h>

-#include <sys/sysctl.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);

-DEFINE_GUID(IID_IAudioCaptureClient, 0xc8adbd64, 0xe71e, 0x48a0, 0xa4,0xde, 0x18,0x5c,0x39,0x5c,0xd3,0x17);

-

-#ifdef HAVE_WASAPI

-#include <wtypes.h>

-#include <devpropdef.h>

-#include <propkeydef.h>

-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);

-DEFINE_PROPERTYKEY(PKEY_AudioEndpoint_GUID, 0x1da5d803, 0xd492, 0x4edd, 0x8c, 0x23,0xe0, 0xc0,0xff,0xee,0x7f,0x0e, 4 );

-#endif

-#endif

-#endif /* AL_NO_UID_DEFS */

-

-#ifdef HAVE_DLFCN_H

-#include <dlfcn.h>

-#endif

-#ifdef HAVE_INTRIN_H

-#include <intrin.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

-

-#ifndef _WIN32

-#include <sys/types.h>

-#include <sys/stat.h>

-#include <sys/mman.h>

-#include <fcntl.h>

-#include <unistd.h>

-#elif defined(_WIN32_IE)

-#include <shlobj.h>

-#endif

-

-#include "alMain.h"

-#include "alu.h"

-#include "cpu_caps.h"

-#include "fpu_modes.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 size_t RoundUp(size_t value, size_t r);

-extern inline ALint fastf2i(ALfloat f);

-extern inline int float2int(float f);

-extern inline float fast_roundf(float f);

-#ifndef __GNUC__

-#if defined(HAVE_BITSCANFORWARD64_INTRINSIC)

-extern inline int msvc64_ctz64(ALuint64 v);

-#elif defined(HAVE_BITSCANFORWARD_INTRINSIC)

-extern inline int msvc_ctz64(ALuint64 v);

-#else

-extern inline int fallback_popcnt64(ALuint64 v);

-extern inline int fallback_ctz64(ALuint64 value);

-#endif

-#endif

-

-

-#if defined(HAVE_GCC_GET_CPUID) && (defined(__i386__) || defined(__x86_64__) || \

- defined(_M_IX86) || defined(_M_X64))

-typedef unsigned int reg_type;

-static inline void get_cpuid(int f, reg_type *regs)

-{ __get_cpuid(f, &regs[0], &regs[1], &regs[2], &regs[3]); }

-#define CAN_GET_CPUID

-#elif defined(HAVE_CPUID_INTRINSIC) && (defined(__i386__) || defined(__x86_64__) || \

- defined(_M_IX86) || defined(_M_X64))

-typedef int reg_type;

-static inline void get_cpuid(int f, reg_type *regs)

-{ (__cpuid)(regs, f); }

-#define CAN_GET_CPUID

-#endif

-

-int CPUCapFlags = 0;

-

-void FillCPUCaps(int capfilter)

-{

- int 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?). */

-#ifdef CAN_GET_CPUID

- union {

- reg_type regs[4];

- char str[sizeof(reg_type[4])];

- } cpuinf[3] = {{ { 0, 0, 0, 0 } }};

-

- get_cpuid(0, cpuinf[0].regs);

- if(cpuinf[0].regs[0] == 0)

- ERR("Failed to get CPUID\n");

- else

- {

- unsigned int maxfunc = cpuinf[0].regs[0];

- unsigned int maxextfunc;

-

- get_cpuid(0x80000000, cpuinf[0].regs);

- 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);

- get_cpuid(0x80000003, cpuinf[1].regs);

- get_cpuid(0x80000004, cpuinf[2].regs);

- TRACE("Name: \"%.16s%.16s%.16s\"\n", cpuinf[0].str, cpuinf[1].str, cpuinf[2].str);

- }

-

- if(maxfunc >= 1)

- {

- get_cpuid(1, cpuinf[0].regs);

- if((cpuinf[0].regs[3]&(1<<25)))

- caps |= CPU_CAP_SSE;

- if((caps&CPU_CAP_SSE) && (cpuinf[0].regs[3]&(1<<26)))

- caps |= CPU_CAP_SSE2;

- if((caps&CPU_CAP_SSE2) && (cpuinf[0].regs[2]&(1<<0)))

- caps |= CPU_CAP_SSE3;

- if((caps&CPU_CAP_SSE3) && (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_SSE3 | CPU_CAP_SSE4_1;

-#elif defined(HAVE_SSE3)

-#warning "Assuming SSE 3 run-time support!"

- caps |= CPU_CAP_SSE | CPU_CAP_SSE2 | CPU_CAP_SSE3;

-#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

- FILE *file = fopen("/proc/cpuinfo", "rt");

- if(!file)

- ERR("Failed to open /proc/cpuinfo, cannot check for NEON support\n");

- else

- {

- al_string features = AL_STRING_INIT_STATIC();

- char buf[256];

-

- while(fgets(buf, sizeof(buf), file) != NULL)

- {

- if(strncmp(buf, "Features\t:", 10) != 0)

- continue;

-

- alstr_copy_cstr(&features, buf+10);

- while(VECTOR_BACK(features) != '\n')

- {

- if(fgets(buf, sizeof(buf), file) == NULL)

- break;

- alstr_append_cstr(&features, buf);

- }

- break;

- }

- fclose(file);

- file = NULL;

-

- if(!alstr_empty(features))

- {

- const char *str = alstr_get_cstr(features);

- while(isspace(str[0])) ++str;

-

- TRACE("Got features string:%s\n", str);

- while((str=strstr(str, "neon")) != NULL)

- {

- if(isspace(*(str-1)) && (str[4] == 0 || isspace(str[4])))

- {

- caps |= CPU_CAP_NEON;

- break;

- }

- ++str;

- }

- }

-

- alstr_reset(&features);

- }

-#endif

-

- TRACE("Extensions:%s%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_SSE3) ? ((caps&CPU_CAP_SSE3) ? " +SSE3" : " -SSE3") : ""),

- ((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 SetMixerFPUMode(FPUCtl *ctl)

-{

-#if defined(__GNUC__) && defined(HAVE_SSE)

- if((CPUCapFlags&CPU_CAP_SSE))

- {

- __asm__ __volatile__("stmxcsr %0" : "=m" (*&ctl->sse_state));

- unsigned int sseState = ctl->sse_state;

- sseState |= 0x8000; /* set flush-to-zero */

- if((CPUCapFlags&CPU_CAP_SSE2))

- sseState |= 0x0040; /* set denormals-are-zero */

- __asm__ __volatile__("ldmxcsr %0" : : "m" (*&sseState));

- }

-

-#elif defined(HAVE___CONTROL87_2)

-

- __control87_2(0, 0, &ctl->state, &ctl->sse_state);

- _control87(_DN_FLUSH, _MCW_DN);

-

-#elif defined(HAVE__CONTROLFP)

-

- ctl->state = _controlfp(0, 0);

- _controlfp(_DN_FLUSH, _MCW_DN);

-#endif

-}

-

-void RestoreFPUMode(const FPUCtl *ctl)

-{

-#if defined(__GNUC__) && defined(HAVE_SSE)

- if((CPUCapFlags&CPU_CAP_SSE))

- __asm__ __volatile__("ldmxcsr %0" : : "m" (*&ctl->sse_state));

-

-#elif defined(HAVE___CONTROL87_2)

-

- int mode;

- __control87_2(ctl->state, _MCW_DN, &mode, NULL);

- __control87_2(ctl->sse_state, _MCW_DN, NULL, &mode);

-

-#elif defined(HAVE__CONTROLFP)

-

- _controlfp(ctl->state, _MCW_DN);

-#endif

-}

-

-

-static int StringSortCompare(const void *str1, const void *str2)

-{

- return alstr_cmp(*(const_al_string*)str1, *(const_al_string*)str2);

-}

-

-#ifdef _WIN32

-

-static WCHAR *strrchrW(WCHAR *str, WCHAR ch)

-{

- WCHAR *ret = NULL;

- while(*str)

- {

- if(*str == ch)

- ret = str;

- ++str;

- }

- return ret;

-}

-

-void GetProcBinary(al_string *path, al_string *fname)

-{

- WCHAR *pathname, *sep;

- DWORD pathlen;

- DWORD len;

-

- pathlen = 256;

- pathname = malloc(pathlen * sizeof(pathname[0]));

- while(pathlen > 0 && (len=GetModuleFileNameW(NULL, pathname, pathlen)) == pathlen)

- {

- free(pathname);

- pathlen <<= 1;

- pathname = malloc(pathlen * sizeof(pathname[0]));

- }

- if(len == 0)

- {

- free(pathname);

- ERR("Failed to get process name: error %lu\n", GetLastError());

- return;

- }

-

- pathname[len] = 0;

- if((sep=strrchrW(pathname, '\\')) != NULL)

- {

- WCHAR *sep2 = strrchrW(sep+1, '/');

- if(sep2) sep = sep2;

- }

- else

- sep = strrchrW(pathname, '/');

-

- if(sep)

- {

- if(path) alstr_copy_wrange(path, pathname, sep);

- if(fname) alstr_copy_wcstr(fname, sep+1);

- }

- else

- {

- if(path) alstr_clear(path);

- if(fname) alstr_copy_wcstr(fname, pathname);

- }

- free(pathname);

-

- if(path && fname)

- TRACE("Got: %s, %s\n", alstr_get_cstr(*path), alstr_get_cstr(*fname));

- else if(path) TRACE("Got path: %s\n", alstr_get_cstr(*path));

- else if(fname) TRACE("Got filename: %s\n", alstr_get_cstr(*fname));

-}

-

-

-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;

-}

-

-

-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: <UTF-8 error> %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 == '/'); }

-

-static void DirectorySearch(const char *path, const char *ext, vector_al_string *results)

-{

- al_string pathstr = AL_STRING_INIT_STATIC();

- WIN32_FIND_DATAW fdata;

- WCHAR *wpath;

- HANDLE hdl;

-

- alstr_copy_cstr(&pathstr, path);

- alstr_append_cstr(&pathstr, "\\*");

- alstr_append_cstr(&pathstr, ext);

-

- TRACE("Searching %s\n", alstr_get_cstr(pathstr));

-

- wpath = FromUTF8(alstr_get_cstr(pathstr));

-

- hdl = FindFirstFileW(wpath, &fdata);

- if(hdl != INVALID_HANDLE_VALUE)

- {

- size_t base = VECTOR_SIZE(*results);

- do {

- al_string str = AL_STRING_INIT_STATIC();

- alstr_copy_cstr(&str, path);

- alstr_append_char(&str, '\\');

- alstr_append_wcstr(&str, fdata.cFileName);

- TRACE("Got result %s\n", alstr_get_cstr(str));

- VECTOR_PUSH_BACK(*results, str);

- } while(FindNextFileW(hdl, &fdata));

- FindClose(hdl);

-

- if(VECTOR_SIZE(*results) > base)

- qsort(VECTOR_BEGIN(*results)+base, VECTOR_SIZE(*results)-base,

- sizeof(VECTOR_FRONT(*results)), StringSortCompare);

- }

-

- free(wpath);

- alstr_reset(&pathstr);

-}

-

-vector_al_string SearchDataFiles(const char *ext, const char *subdir)

-{

- static const int ids[2] = { CSIDL_APPDATA, CSIDL_COMMON_APPDATA };

- static RefCount search_lock;

- vector_al_string results = VECTOR_INIT_STATIC();

- size_t i;

-

- while(ATOMIC_EXCHANGE_SEQ(&search_lock, 1) == 1)

- althrd_yield();

-

- /* If the path is absolute, use it directly. */

- if(isalpha(subdir[0]) && subdir[1] == ':' && is_slash(subdir[2]))

- {

- al_string path = AL_STRING_INIT_STATIC();

- alstr_copy_cstr(&path, subdir);

-#define FIX_SLASH(i) do { if(*(i) == '/') *(i) = '\\'; } while(0)

- VECTOR_FOR_EACH(char, path, FIX_SLASH);

-#undef FIX_SLASH

-

- DirectorySearch(alstr_get_cstr(path), ext, &results);

-

- alstr_reset(&path);

- }

- else if(subdir[0] == '\\' && subdir[1] == '\\' && subdir[2] == '?' && subdir[3] == '\\')

- DirectorySearch(subdir, ext, &results);

- else

- {

- al_string path = AL_STRING_INIT_STATIC();

- WCHAR *cwdbuf;

-

- /* Search the app-local directory. */

- if((cwdbuf=_wgetenv(L"ALSOFT_LOCAL_PATH")) && *cwdbuf != '\0')

- {

- alstr_copy_wcstr(&path, cwdbuf);

- if(is_slash(VECTOR_BACK(path)))

- {

- VECTOR_POP_BACK(path);

- *VECTOR_END(path) = 0;

- }

- }

- else if(!(cwdbuf=_wgetcwd(NULL, 0)))

- alstr_copy_cstr(&path, ".");

- else

- {

- alstr_copy_wcstr(&path, cwdbuf);

- if(is_slash(VECTOR_BACK(path)))

- {

- VECTOR_POP_BACK(path);

- *VECTOR_END(path) = 0;

- }

- free(cwdbuf);

- }

-#define FIX_SLASH(i) do { if(*(i) == '/') *(i) = '\\'; } while(0)

- VECTOR_FOR_EACH(char, path, FIX_SLASH);

-#undef FIX_SLASH

- DirectorySearch(alstr_get_cstr(path), ext, &results);

-

- /* Search the local and global data dirs. */

- for(i = 0;i < COUNTOF(ids);i++)

- {

- WCHAR buffer[MAX_PATH];

- if(SHGetSpecialFolderPathW(NULL, buffer, ids[i], FALSE) != FALSE)

- {

- alstr_copy_wcstr(&path, buffer);

- if(!is_slash(VECTOR_BACK(path)))

- alstr_append_char(&path, '\\');

- alstr_append_cstr(&path, subdir);

-#define FIX_SLASH(i) do { if(*(i) == '/') *(i) = '\\'; } while(0)

- VECTOR_FOR_EACH(char, path, FIX_SLASH);

-#undef FIX_SLASH

-

- DirectorySearch(alstr_get_cstr(path), ext, &results);

- }

- }

-

- alstr_reset(&path);

- }

-

- ATOMIC_STORE_SEQ(&search_lock, 0);

-

- return results;

-}

-

-#else

-

-void GetProcBinary(al_string *path, al_string *fname)

-{

- char *pathname = NULL;

- size_t pathlen;

-

-#ifdef __FreeBSD__

- int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1 };

- if(sysctl(mib, 4, NULL, &pathlen, NULL, 0) == -1)

- WARN("Failed to sysctl kern.proc.pathname: %s\n", strerror(errno));

- else

- {

- pathname = malloc(pathlen + 1);

- sysctl(mib, 4, (void*)pathname, &pathlen, NULL, 0);

- pathname[pathlen] = 0;

- }

-#endif

-#ifdef HAVE_PROC_PIDPATH

- if(!pathname)

- {

- const pid_t pid = getpid();

- char procpath[PROC_PIDPATHINFO_MAXSIZE];

- int ret;

-

- ret = proc_pidpath(pid, procpath, sizeof(procpath));

- if(ret < 1)

- {

- WARN("proc_pidpath(%d, ...) failed: %s\n", pid, strerror(errno));

- free(pathname);

- pathname = NULL;

- }

- else

- {

- pathlen = strlen(procpath);

- pathname = strdup(procpath);

- }

- }

-#endif

- if(!pathname)

- {

- const char *selfname;

- ssize_t len;

-

- pathlen = 256;

- pathname = malloc(pathlen);

-

- selfname = "/proc/self/exe";

- len = readlink(selfname, pathname, pathlen);

- if(len == -1 && errno == ENOENT)

- {

- selfname = "/proc/self/file";

- len = readlink(selfname, pathname, pathlen);

- }

- if(len == -1 && errno == ENOENT)

- {

- selfname = "/proc/curproc/exe";

- len = readlink(selfname, pathname, pathlen);

- }

- if(len == -1 && errno == ENOENT)

- {

- selfname = "/proc/curproc/file";

- len = readlink(selfname, pathname, pathlen);

- }

-

- while(len > 0 && (size_t)len == pathlen)

- {

- free(pathname);

- pathlen <<= 1;

- pathname = malloc(pathlen);

- len = readlink(selfname, pathname, pathlen);

- }

- if(len <= 0)

- {

- free(pathname);

- WARN("Failed to readlink %s: %s\n", selfname, strerror(errno));

- return;

- }

-

- pathname[len] = 0;

- }

-

- char *sep = strrchr(pathname, '/');

- if(sep)

- {

- if(path) alstr_copy_range(path, pathname, sep);

- if(fname) alstr_copy_cstr(fname, sep+1);

- }

- else

- {

- if(path) alstr_clear(path);

- if(fname) alstr_copy_cstr(fname, pathname);

- }

- free(pathname);

-

- if(path && fname)

- TRACE("Got: %s, %s\n", alstr_get_cstr(*path), alstr_get_cstr(*fname));

- else if(path) TRACE("Got path: %s\n", alstr_get_cstr(*path));

- else if(fname) TRACE("Got filename: %s\n", alstr_get_cstr(*fname));

-}

-

-

-#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);

-}

-

-

-static void DirectorySearch(const char *path, const char *ext, vector_al_string *results)

-{

- size_t extlen = strlen(ext);

- DIR *dir;

-

- TRACE("Searching %s for *%s\n", path, ext);

- dir = opendir(path);

- if(dir != NULL)

- {

- size_t base = VECTOR_SIZE(*results);

- struct dirent *dirent;

- while((dirent=readdir(dir)) != NULL)

- {

- al_string str;

- size_t len;

- if(strcmp(dirent->d_name, ".") == 0 || strcmp(dirent->d_name, "..") == 0)

- continue;

-

- len = strlen(dirent->d_name);

- if(len <= extlen)

- continue;

- if(strcasecmp(dirent->d_name+len-extlen, ext) != 0)

- continue;

-

- AL_STRING_INIT(str);

- alstr_copy_cstr(&str, path);

- if(VECTOR_BACK(str) != '/')

- alstr_append_char(&str, '/');

- alstr_append_cstr(&str, dirent->d_name);

- TRACE("Got result %s\n", alstr_get_cstr(str));

- VECTOR_PUSH_BACK(*results, str);

- }

- closedir(dir);

-

- if(VECTOR_SIZE(*results) > base)

- qsort(VECTOR_BEGIN(*results)+base, VECTOR_SIZE(*results)-base,

- sizeof(VECTOR_FRONT(*results)), StringSortCompare);

- }

-}

-

-vector_al_string SearchDataFiles(const char *ext, const char *subdir)

-{

- static RefCount search_lock;

- vector_al_string results = VECTOR_INIT_STATIC();

-

- while(ATOMIC_EXCHANGE_SEQ(&search_lock, 1) == 1)

- althrd_yield();

-

- if(subdir[0] == '/')

- DirectorySearch(subdir, ext, &results);

- else

- {

- al_string path = AL_STRING_INIT_STATIC();

- const char *str, *next;

-

- /* Search the app-local directory. */

- if((str=getenv("ALSOFT_LOCAL_PATH")) && *str != '\0')

- DirectorySearch(str, ext, &results);

- else

- {

- size_t cwdlen = 256;

- char *cwdbuf = malloc(cwdlen);

- while(!getcwd(cwdbuf, cwdlen))

- {

- free(cwdbuf);

- cwdbuf = NULL;

- if(errno != ERANGE)

- break;

- cwdlen <<= 1;

- cwdbuf = malloc(cwdlen);

- }

- if(!cwdbuf)

- DirectorySearch(".", ext, &results);

- else

- {

- DirectorySearch(cwdbuf, ext, &results);

- free(cwdbuf);

- cwdbuf = NULL;

- }

- }

-

- // Search local data dir

- if((str=getenv("XDG_DATA_HOME")) != NULL && str[0] != '\0')

- {

- alstr_copy_cstr(&path, str);

- if(VECTOR_BACK(path) != '/')

- alstr_append_char(&path, '/');

- alstr_append_cstr(&path, subdir);

- DirectorySearch(alstr_get_cstr(path), ext, &results);

- }

- else if((str=getenv("HOME")) != NULL && str[0] != '\0')

- {

- alstr_copy_cstr(&path, str);

- if(VECTOR_BACK(path) == '/')

- {

- VECTOR_POP_BACK(path);

- *VECTOR_END(path) = 0;

- }

- alstr_append_cstr(&path, "/.local/share/");

- alstr_append_cstr(&path, subdir);

- DirectorySearch(alstr_get_cstr(path), ext, &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)

- alstr_copy_cstr(&path, str);

- else

- {

- alstr_copy_range(&path, str, next);

- ++next;

- }

- if(!alstr_empty(path))

- {

- if(VECTOR_BACK(path) != '/')

- alstr_append_char(&path, '/');

- alstr_append_cstr(&path, subdir);

-

- DirectorySearch(alstr_get_cstr(path), ext, &results);

- }

- }

-

- alstr_reset(&path);

- }

-

- ATOMIC_STORE_SEQ(&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, &param);

- }

-#else

- /* Real-time priority not available */

- failed = (RTPrioLevel>0);

-#endif

- if(failed)

- ERR("Failed to set priority level for thread\n");

-}

-

-

-extern inline void alstr_reset(al_string *str);

-extern inline size_t alstr_length(const_al_string str);

-extern inline ALboolean alstr_empty(const_al_string str);

-extern inline const al_string_char_type *alstr_get_cstr(const_al_string str);

-

-void alstr_clear(al_string *str)

-{

- if(!alstr_empty(*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_RESIZE(*str, 0, 1);

- VECTOR_ELEM(*str, 0) = 0;

- }

-}

-

-static inline int alstr_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 alstr_cmp(const_al_string str1, const_al_string str2)

-{

- return alstr_compare(&VECTOR_FRONT(str1), alstr_length(str1),

- &VECTOR_FRONT(str2), alstr_length(str2));

-}

-int alstr_cmp_cstr(const_al_string str1, const al_string_char_type *str2)

-{

- return alstr_compare(&VECTOR_FRONT(str1), alstr_length(str1),

- str2, strlen(str2));

-}

-

-void alstr_copy(al_string *str, const_al_string from)

-{

- size_t len = alstr_length(from);

- size_t i;

-

- VECTOR_RESIZE(*str, len, len+1);

- for(i = 0;i < len;i++)

- VECTOR_ELEM(*str, i) = VECTOR_ELEM(from, i);

- VECTOR_ELEM(*str, i) = 0;

-}

-

-void alstr_copy_cstr(al_string *str, const al_string_char_type *from)

-{

- size_t len = strlen(from);

- size_t i;

-

- VECTOR_RESIZE(*str, len, len+1);

- for(i = 0;i < len;i++)

- VECTOR_ELEM(*str, i) = from[i];

- VECTOR_ELEM(*str, i) = 0;

-}

-

-void alstr_copy_range(al_string *str, const al_string_char_type *from, const al_string_char_type *to)

-{

- size_t len = to - from;

- size_t i;

-

- VECTOR_RESIZE(*str, len, len+1);

- for(i = 0;i < len;i++)

- VECTOR_ELEM(*str, i) = from[i];

- VECTOR_ELEM(*str, i) = 0;

-}

-

-void alstr_append_char(al_string *str, const al_string_char_type c)

-{

- size_t len = alstr_length(*str);

- VECTOR_RESIZE(*str, len+1, len+2);

- VECTOR_BACK(*str) = c;

- VECTOR_ELEM(*str, len+1) = 0;

-}

-

-void alstr_append_cstr(al_string *str, const al_string_char_type *from)

-{

- size_t len = strlen(from);

- if(len != 0)

- {

- size_t base = alstr_length(*str);

- size_t i;

-

- VECTOR_RESIZE(*str, base+len, base+len+1);

- for(i = 0;i < len;i++)

- VECTOR_ELEM(*str, base+i) = from[i];

- VECTOR_ELEM(*str, base+i) = 0;

- }

-}

-

-void alstr_append_range(al_string *str, const al_string_char_type *from, const al_string_char_type *to)

-{

- size_t len = to - from;

- if(len != 0)

- {

- size_t base = alstr_length(*str);

- size_t i;

-

- VECTOR_RESIZE(*str, base+len, base+len+1);

- for(i = 0;i < len;i++)

- VECTOR_ELEM(*str, base+i) = from[i];

- VECTOR_ELEM(*str, base+i) = 0;

- }

-}

-

-#ifdef _WIN32

-void alstr_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_RESIZE(*str, len-1, len);

- WideCharToMultiByte(CP_UTF8, 0, from, -1, &VECTOR_FRONT(*str), len, NULL, NULL);

- VECTOR_ELEM(*str, len-1) = 0;

- }

-}

-

-void alstr_append_wcstr(al_string *str, const wchar_t *from)

-{

- int len;

- if((len=WideCharToMultiByte(CP_UTF8, 0, from, -1, NULL, 0, NULL, NULL)) > 0)

- {

- size_t base = alstr_length(*str);

- VECTOR_RESIZE(*str, base+len-1, base+len);

- WideCharToMultiByte(CP_UTF8, 0, from, -1, &VECTOR_ELEM(*str, base), len, NULL, NULL);

- VECTOR_ELEM(*str, base+len-1) = 0;

- }

-}

-

-void alstr_copy_wrange(al_string *str, const wchar_t *from, const wchar_t *to)

-{

- int len;

- if((len=WideCharToMultiByte(CP_UTF8, 0, from, (int)(to-from), NULL, 0, NULL, NULL)) > 0)

- {

- VECTOR_RESIZE(*str, len, len+1);

- WideCharToMultiByte(CP_UTF8, 0, from, (int)(to-from), &VECTOR_FRONT(*str), len+1, NULL, NULL);

- VECTOR_ELEM(*str, len) = 0;

- }

-}

-

-void alstr_append_wrange(al_string *str, const wchar_t *from, const wchar_t *to)

-{

- int len;

- if((len=WideCharToMultiByte(CP_UTF8, 0, from, (int)(to-from), NULL, 0, NULL, NULL)) > 0)

- {

- size_t base = alstr_length(*str);

- VECTOR_RESIZE(*str, base+len, base+len+1);

- WideCharToMultiByte(CP_UTF8, 0, from, (int)(to-from), &VECTOR_ELEM(*str, base), len+1, NULL, NULL);

- VECTOR_ELEM(*str, base+len) = 0;

- }

-}

-#endif