OS X compatibility fixes

[minetest.git] / src / porting.h

diff --git a/src/porting.h b/src/porting.h
index aaabce4eb9c1c9fb4537e600b25ddc81264210b9..b5a5d00f284120184e4cb1ffba0b53fb94181111 100644 (file)
--- a/src/porting.h
+++ b/src/porting.h
@@ -28,12 +28,14 @@ with this program; if not, write to the Free Software Foundation, Inc.,
        #ifdef _WIN32_WINNT
                #undef _WIN32_WINNT
        #endif
-       #define _WIN32_WINNT 0x0501 // We need to do this before any other headers 
+       #define _WIN32_WINNT 0x0501 // We need to do this before any other headers
                // because those might include sdkddkver.h which defines _WIN32_WINNT if not already set
 #endif
 
 #include <string>
+#include "irrlicht.h"
 #include "irrlichttypes.h" // u32
+#include "irrlichttypes_extrabloated.h"
 #include "debug.h"
 #include "constants.h"
 #include "gettime.h"
@@ -121,6 +123,11 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 #define PADDING(x, y) ((ALIGNOF(y) - ((uintptr_t)(x) & (ALIGNOF(y) - 1))) & (ALIGNOF(y) - 1))
 
+#if defined(__APPLE__)
+       #include <mach-o/dyld.h>
+       #include <CoreFoundation/CoreFoundation.h>
+#endif
+
 namespace porting
 {
 
@@ -178,6 +185,8 @@ bool threadSetPriority(threadid_t tid, int prio);
 */
 std::string get_sysinfo();
 
+void initIrrlicht(irr::IrrlichtDevice * );
+
 /*
        Resolution is 10-20ms.
        Remember to check for overflows.
@@ -216,9 +225,13 @@ std::string get_sysinfo();
        }
        
 #else // Posix
-       #include <sys/time.h>
-       #include <time.h>
-       
+#include <sys/time.h>
+#include <time.h>
+#ifdef __MACH__
+#include <mach/clock.h>
+#include <mach/mach.h>
+#endif
+
        inline u32 getTimeS()
        {
                struct timeval tv;
@@ -243,7 +256,18 @@ std::string get_sysinfo();
        inline u32 getTimeNs()
        {
                struct timespec ts;
+               // from http://stackoverflow.com/questions/5167269/clock-gettime-alternative-in-mac-os-x
+#ifdef __MACH__ // OS X does not have clock_gettime, use clock_get_time
+               clock_serv_t cclock;
+               mach_timespec_t mts;
+               host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
+               clock_get_time(cclock, &mts);
+               mach_port_deallocate(mach_task_self(), cclock);
+               ts.tv_sec = mts.tv_sec;
+               ts.tv_nsec = mts.tv_nsec;
+#else
                clock_gettime(CLOCK_REALTIME, &ts);
+#endif
                return ts.tv_sec * 1000000000 + ts.tv_nsec;
        }
        
@@ -271,25 +295,80 @@ inline u32 getTime(TimePrecision prec)
        return 0;
 }
 
-#if (defined(linux) || defined(__linux))
+/**
+ * Delta calculation function taking two 32bit arguments.
+ * @param old_time_ms old time for delta calculation (order is relevant!)
+ * @param new_time_ms new time for delta calculation (order is relevant!)
+ * @return positive 32bit delta value
+ */
+inline u32 getDeltaMs(u32 old_time_ms, u32 new_time_ms)
+{
+       if (new_time_ms >= old_time_ms) {
+               return (new_time_ms - old_time_ms);
+       } else {
+               return (old_time_ms - new_time_ms);
+       }
+}
 
-#include <sys/prctl.h>
+#if defined(linux) || defined(__linux)
+       #include <sys/prctl.h>
 
-inline void setThreadName(const char* name) {
-       prctl(PR_SET_NAME,name);
-}
-#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
-/* BSD doesn't seem to support thread names. If you know about a way 
- * to add this feature please create a pull request.
- * "setproctitle" doesn't work for threadnames.
- */
-inline void setThreadName(const char* name) {}
+       inline void setThreadName(const char *name) {
+               /* It would be cleaner to do this with pthread_setname_np,
+                * which was added to glibc in version 2.12, but some major
+                * distributions are still runing 2.11 and previous versions.
+                */
+               prctl(PR_SET_NAME, name);
+       }
+#elif defined(__FreeBSD__) || defined(__OpenBSD__)
+       #include <pthread.h>
+       #include <pthread_np.h>
+
+       inline void setThreadName(const char *name) {
+               pthread_set_name_np(pthread_self(), name);
+       }
+#elif defined(__NetBSD__)
+       #include <pthread.h>
+
+       inline void setThreadName(const char *name) {
+               pthread_setname_np(pthread_self(), name);
+       }
+#elif defined(_MSC_VER)
+       typedef struct tagTHREADNAME_INFO {
+               DWORD dwType; // must be 0x1000
+               LPCSTR szName; // pointer to name (in user addr space)
+               DWORD dwThreadID; // thread ID (-1=caller thread)
+               DWORD dwFlags; // reserved for future use, must be zero
+       } THREADNAME_INFO;
+
+       inline void setThreadName(const char *name) {
+               THREADNAME_INFO info;
+               info.dwType = 0x1000;
+               info.szName = name;
+               info.dwThreadID = -1;
+               info.dwFlags = 0;
+               __try {
+                       RaiseException(0x406D1388, 0, sizeof(info) / sizeof(DWORD), (ULONG_PTR *) &info);
+               } __except (EXCEPTION_CONTINUE_EXECUTION) {}
+       }
+#elif defined(__APPLE__)
+       #include <pthread.h>
+
+       inline void setThreadName(const char *name) {
+               pthread_setname_np(name);
+       }
 #elif defined(_WIN32)
-// threadnames are not supported on windows
-inline void setThreadName(const char* name) {}
+       inline void setThreadName(const char* name) {}
 #else
-#warning "Unknown platform for setThreadName support, you wont have threadname support."
-inline void setThreadName(const char* name) {}
+       #warning "Unrecognized platform, thread names will not be available."
+       inline void setThreadName(const char* name) {}
+#endif
+
+#ifndef SERVER
+float getDisplayDensity();
+
+v2u32 getDisplaySize();
+v2u32 getWindowSize();
 #endif
 
 } // namespace porting