+#ifdef WIN32
+# ifndef DONT_USE_SETDLLDIRECTORY
+# define _WIN32_WINNT 0x0502
+# endif
+#endif
+
#include "quakedef.h"
#define SUPPORTDLL
# include <windows.h>
# include <mmsystem.h> // timeGetTime
# include <time.h> // localtime
+#ifdef _MSC_VER
+#pragma comment(lib, "winmm.lib")
+#endif
#else
# include <unistd.h>
# include <fcntl.h>
===============================================================================
*/
+static qboolean Sys_LoadLibraryFunctions(dllhandle_t dllhandle, const dllfunction_t *fcts, qboolean complain, qboolean has_next)
+{
+ const dllfunction_t *func;
+ if(dllhandle)
+ {
+ for (func = fcts; func && func->name != NULL; func++)
+ if (!(*func->funcvariable = (void *) Sys_GetProcAddress (dllhandle, func->name)))
+ {
+ if(complain)
+ {
+ Con_DPrintf (" - missing function \"%s\" - broken library!", func->name);
+ if(has_next)
+ Con_DPrintf("\nContinuing with");
+ }
+ goto notfound;
+ }
+ return true;
+
+ notfound:
+ for (func = fcts; func && func->name != NULL; func++)
+ *func->funcvariable = NULL;
+ }
+ return false;
+}
+
qboolean Sys_LoadLibrary (const char** dllnames, dllhandle_t* handle, const dllfunction_t *fcts)
{
#ifdef SUPPORTDLL
#ifndef WIN32
#ifdef PREFER_PRELOAD
dllhandle = dlopen(NULL, RTLD_LAZY | RTLD_GLOBAL);
- if(dllhandle)
+ if(Sys_LoadLibraryFunctions(dllhandle, fcts, false, false))
{
- for (func = fcts; func && func->name != NULL; func++)
- if (!(*func->funcvariable = (void *) Sys_GetProcAddress (dllhandle, func->name)))
- {
- dlclose(dllhandle);
- goto notfound;
- }
Con_DPrintf ("All of %s's functions were already linked in! Not loading dynamically...\n", dllnames[0]);
*handle = dllhandle;
return true;
}
+ else
+ Sys_UnloadLibrary(&dllhandle);
notfound:
#endif
#endif
{
Con_DPrintf (" \"%s\"", dllnames[i]);
#ifdef WIN32
+# ifndef DONT_USE_SETDLLDIRECTORY
+# ifdef _WIN64
+ SetDllDirectory("bin64");
+# else
+ SetDllDirectory("bin32");
+# endif
+# endif
dllhandle = LoadLibrary (dllnames[i]);
+ // no need to unset this - we want ALL dlls to be loaded from there, anyway
#else
dllhandle = dlopen (dllnames[i], RTLD_LAZY | RTLD_GLOBAL);
#endif
- if (dllhandle)
+ if (Sys_LoadLibraryFunctions(dllhandle, fcts, true, (dllnames[i+1] != NULL) || (strrchr(com_argv[0], '/'))))
break;
+ else
+ Sys_UnloadLibrary (&dllhandle);
}
// see if the names can be loaded relative to the executable path
#else
dllhandle = dlopen (temp, RTLD_LAZY | RTLD_GLOBAL);
#endif
- if (dllhandle)
+ if (Sys_LoadLibraryFunctions(dllhandle, fcts, true, dllnames[i+1] != NULL))
break;
+ else
+ Sys_UnloadLibrary (&dllhandle);
}
}
Con_DPrintf(" - loaded.\n");
- // Get the function adresses
- for (func = fcts; func && func->name != NULL; func++)
- if (!(*func->funcvariable = (void *) Sys_GetProcAddress (dllhandle, func->name)))
- {
- Con_DPrintf ("Missing function \"%s\" - broken library!\n", func->name);
- Sys_UnloadLibrary (&dllhandle);
- return false;
- }
-
*handle = dllhandle;
return true;
#else
# define HAVE_GETTIMEOFDAY 1
#endif
-#ifdef FD_SET
-# define HAVE_SELECT 1
+#ifndef WIN32
+// on Win32, select() cannot be used with all three FD list args being NULL according to MSDN
+// (so much for POSIX...)
+# ifdef FD_SET
+# define HAVE_SELECT 1
+# endif
#endif
#ifndef WIN32
# define HAVE_USLEEP 1
#endif
-cvar_t sys_debugsleep = {0, "sys_debugsleep", "0", "write requested and attained sleep times to standard output, to be used with gnuplot"};
+// this one is referenced elsewhere
cvar_t sys_usenoclockbutbenchmark = {CVAR_SAVE, "sys_usenoclockbutbenchmark", "0", "don't use ANY real timing, and simulate a clock (for benchmarking); the game then runs as fast as possible. Run a QC mod with bots that does some stuff, then does a quit at the end, to benchmark a server. NEVER do this on a public server."};
-cvar_t sys_usesdlgetticks = {CVAR_SAVE, "sys_usesdlgetticks", "0", "use SDL_GetTicks() timer (less accurate, for debugging)"};
-cvar_t sys_usesdldelay = {CVAR_SAVE, "sys_usesdldelay", "0", "use SDL_Delay() (less accurate, for debugging)"};
+
+// these are not
+static cvar_t sys_debugsleep = {0, "sys_debugsleep", "0", "write requested and attained sleep times to standard output, to be used with gnuplot"};
+static cvar_t sys_usesdlgetticks = {CVAR_SAVE, "sys_usesdlgetticks", "0", "use SDL_GetTicks() timer (less accurate, for debugging)"};
+static cvar_t sys_usesdldelay = {CVAR_SAVE, "sys_usesdldelay", "0", "use SDL_Delay() (less accurate, for debugging)"};
#if HAVE_QUERYPERFORMANCECOUNTER
-cvar_t sys_usequeryperformancecounter = {CVAR_SAVE, "sys_usequeryperformancecounter", "0", "use windows QueryPerformanceCounter timer (which has issues on multicore/multiprocessor machines and processors which are designed to conserve power) for timing rather than timeGetTime function (which has issues on some motherboards)"};
+static cvar_t sys_usequeryperformancecounter = {CVAR_SAVE, "sys_usequeryperformancecounter", "0", "use windows QueryPerformanceCounter timer (which has issues on multicore/multiprocessor machines and processors which are designed to conserve power) for timing rather than timeGetTime function (which has issues on some motherboards)"};
#endif
#if HAVE_CLOCKGETTIME
-cvar_t sys_useclockgettime = {CVAR_SAVE, "sys_useclockgettime", "0", "use POSIX clock_gettime function (which has issues if the system clock speed is far off, as it can't get fixed by NTP) for timing rather than gettimeofday (which has issues if the system time is stepped by ntpdate, or apparently on some Xen installations)"};
+static cvar_t sys_useclockgettime = {CVAR_SAVE, "sys_useclockgettime", "0", "use POSIX clock_gettime function (which has issues if the system clock speed is far off, as it can't get fixed by NTP) for timing rather than gettimeofday (which has issues if the system time is stepped by ntpdate, or apparently on some Xen installations)"};
#endif
-static unsigned long benchmark_time;
+static double benchmark_time; // actually always contains an integer amount of milliseconds, will eventually "overflow"
void Sys_Init_Commands (void)
{
double newtime;
if(sys_usenoclockbutbenchmark.integer)
{
+ double old_benchmark_time = benchmark_time;
benchmark_time += 1;
- return ((double) benchmark_time) / 1e6;
+ if(benchmark_time == old_benchmark_time)
+ Sys_Error("sys_usenoclockbutbenchmark cannot run any longer, sorry");
+ return benchmark_time * 0.000001;
}
// first all the OPTIONAL timers
void Sys_Sleep(int microseconds)
{
- double t;
+ double t = 0;
if(sys_usenoclockbutbenchmark.integer)
{
- benchmark_time += microseconds;
+ if(microseconds)
+ {
+ double old_benchmark_time = benchmark_time;
+ benchmark_time += microseconds;
+ if(benchmark_time == old_benchmark_time)
+ Sys_Error("sys_usenoclockbutbenchmark cannot run any longer, sorry");
+ }
return;
}
if(sys_debugsleep.integer)
printf("%d %d # debugsleep\n", microseconds, (unsigned int)(t * 1000000));
}
}
+
+const char *Sys_FindInPATH(const char *name, char namesep, const char *PATH, char pathsep, char *buf, size_t bufsize)
+{
+ const char *p = PATH;
+ const char *q;
+ if(p && name)
+ {
+ while((q = strchr(p, ':')))
+ {
+ dpsnprintf(buf, bufsize, "%.*s%c%s", (int)(q-p), p, namesep, name);
+ if(FS_SysFileExists(buf))
+ return buf;
+ p = q + 1;
+ }
+ if(!q) // none found - try the last item
+ {
+ dpsnprintf(buf, bufsize, "%s%c%s", p, namesep, name);
+ if(FS_SysFileExists(buf))
+ return buf;
+ }
+ }
+ return name;
+}
+
+const char *Sys_FindExecutableName(void)
+{
+#if defined(WIN32)
+ return com_argv[0];
+#else
+ static char exenamebuf[MAX_OSPATH+1];
+ ssize_t n = -1;
+#if defined(__FreeBSD__)
+ n = readlink("/proc/curproc/file", exenamebuf, sizeof(exenamebuf)-1);
+#elif defined(__linux__)
+ n = readlink("/proc/self/exe", exenamebuf, sizeof(exenamebuf)-1);
+#endif
+ if(n > 0 && (size_t)(n) < sizeof(exenamebuf))
+ {
+ exenamebuf[n] = 0;
+ return exenamebuf;
+ }
+ if(strchr(com_argv[0], '/'))
+ return com_argv[0]; // possibly a relative path
+ else
+ return Sys_FindInPATH(com_argv[0], '/', getenv("PATH"), ':', exenamebuf, sizeof(exenamebuf));
+#endif
+}
+
+void Sys_ProvideSelfFD(void)
+{
+ if(com_selffd != -1)
+ return;
+ com_selffd = FS_SysOpenFD(Sys_FindExecutableName(), "rb", false);
+}
+
+// for x86 cpus only... (x64 has SSE2_PRESENT)
+#if defined(SSE_POSSIBLE) && !defined(SSE2_PRESENT)
+// code from SDL, shortened as we can expect CPUID to work
+static int CPUID_Features(void)
+{
+ int features = 0;
+# if defined(__GNUC__) && defined(__i386__)
+ __asm__ (
+" movl %%ebx,%%edi\n"
+" xorl %%eax,%%eax \n"
+" incl %%eax \n"
+" cpuid # Get family/model/stepping/features\n"
+" movl %%edx,%0 \n"
+" movl %%edi,%%ebx\n"
+ : "=m" (features)
+ :
+ : "%eax", "%ecx", "%edx", "%edi"
+ );
+# elif (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)
+ __asm {
+ xor eax, eax
+ inc eax
+ cpuid ; Get family/model/stepping/features
+ mov features, edx
+ }
+# else
+# error SSE_POSSIBLE set but no CPUID implementation
+# endif
+ return features;
+}
+
+qboolean Sys_HaveSSE(void)
+{
+ // COMMANDLINEOPTION: SSE: -nosse disables SSE support and detection
+ if(COM_CheckParm("-nosse"))
+ return false;
+ // COMMANDLINEOPTION: SSE: -forcesse enables SSE support and disables detection
+ if(COM_CheckParm("-forcesse") || COM_CheckParm("-forcesse2"))
+ return true;
+ if(CPUID_Features() & (1 << 25))
+ return true;
+ return false;
+}
+
+qboolean Sys_HaveSSE2(void)
+{
+ // COMMANDLINEOPTION: SSE2: -nosse2 disables SSE2 support and detection
+ if(COM_CheckParm("-nosse") || COM_CheckParm("-nosse2"))
+ return false;
+ // COMMANDLINEOPTION: SSE2: -forcesse2 enables SSE2 support and disables detection
+ if(COM_CheckParm("-forcesse2"))
+ return true;
+ if((CPUID_Features() & (3 << 25)) == (3 << 25)) // SSE is 1<<25, SSE2 is 1<<26
+ return true;
+ return false;
+}
+#endif
projects / xonotic / darkplaces.git / blobdiff