Make scrollbar scale according to DPI and scaling factor

[dragonfireclient.git] / src / porting.h

diff --git a/src/porting.h b/src/porting.h
index 937ca946446cf90ca8cf01e6d0575bf290c5eca2..9be09da75d65bf396a00e1d933c038f1c7e5cffe 100644 (file)
--- a/src/porting.h
+++ b/src/porting.h
@@ -53,12 +53,12 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 #ifdef _WIN32
        #include <windows.h>
-       
+
        #define sleep_ms(x) Sleep(x)
 #else
        #include <unistd.h>
        #include <stdint.h> //for uintptr_t
-       
+
        #if (defined(linux) || defined(__linux)) && !defined(_GNU_SOURCE)
                #define _GNU_SOURCE
        #endif
@@ -79,7 +79,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
        #endif
 
        #define sleep_ms(x) usleep(x*1000)
-       
+
        #define THREAD_PRIORITY_LOWEST       0
        #define THREAD_PRIORITY_BELOW_NORMAL 1
        #define THREAD_PRIORITY_NORMAL       2
@@ -123,6 +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
 {
 
@@ -192,17 +197,17 @@ void initIrrlicht(irr::IrrlichtDevice * );
        #define _WIN32_WINNT 0x0501
 #endif
        #include <windows.h>
-       
+
        inline u32 getTimeS()
        {
                return GetTickCount() / 1000;
        }
-       
+
        inline u32 getTimeMs()
        {
                return GetTickCount();
        }
-       
+
        inline u32 getTimeUs()
        {
                LARGE_INTEGER freq, t;
@@ -210,7 +215,7 @@ void initIrrlicht(irr::IrrlichtDevice * );
                QueryPerformanceCounter(&t);
                return (double)(t.QuadPart) / ((double)(freq.QuadPart) / 1000000.0);
        }
-       
+
        inline u32 getTimeNs()
        {
                LARGE_INTEGER freq, t;
@@ -218,39 +223,54 @@ void initIrrlicht(irr::IrrlichtDevice * );
                QueryPerformanceCounter(&t);
                return (double)(t.QuadPart) / ((double)(freq.QuadPart) / 1000000000.0);
        }
-       
+
 #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;
                gettimeofday(&tv, NULL);
                return tv.tv_sec;
        }
-       
+
        inline u32 getTimeMs()
        {
                struct timeval tv;
                gettimeofday(&tv, NULL);
                return tv.tv_sec * 1000 + tv.tv_usec / 1000;
        }
-       
+
        inline u32 getTimeUs()
        {
                struct timeval tv;
                gettimeofday(&tv, NULL);
                return tv.tv_sec * 1000000 + tv.tv_usec;
        }
-       
+
        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;
        }
-       
+
        /*#include <sys/timeb.h>
        inline u32 getTimeMs()
        {
@@ -275,6 +295,21 @@ inline u32 getTime(TimePrecision prec)
        return 0;
 }
 
+/**
+ * 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);
+       }
+}
+
 #if defined(linux) || defined(__linux)
        #include <sys/prctl.h>
 
@@ -338,5 +373,9 @@ v2u32 getWindowSize();
 
 } // namespace porting
 
+#ifdef __ANDROID__
+#include "porting_android.h"
+#endif
+
 #endif // PORTING_HEADER