1 files changed, 154 insertions, 0 deletions
diff --git a/src/engine/external/glfw/lib/x11/x11_time.c b/src/engine/external/glfw/lib/x11/x11_time.c
new file mode 100644
index 00000000..32ae9d9d
--- /dev/null
+++ b/src/engine/external/glfw/lib/x11/x11_time.c
@@ -0,0 +1,154 @@
+//========================================================================
+// GLFW - An OpenGL framework
+// File:        x11_time.c
+// Platform:    X11 (Unix)
+// API version: 2.6
+// WWW:         http://glfw.sourceforge.net
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Camilla Berglund
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+
+//========================================================================
+// Initialise timer
+//========================================================================
+
+void _glfwInitTimer( void )
+{
+    struct timeval  tv;
+
+    // "Resolution" is 1 us
+    _glfwLibrary.Timer.Resolution = 1e-6;
+
+    // Set start-time for timer
+    gettimeofday( &tv, NULL );
+    _glfwLibrary.Timer.t0 = (long long) tv.tv_sec * (long long) 1000000 +
+		            (long long) tv.tv_usec;
+}
+
+
+//************************************************************************
+//****               Platform implementation functions                ****
+//************************************************************************
+
+//========================================================================
+// Return timer value in seconds
+//========================================================================
+
+double _glfwPlatformGetTime( void )
+{
+    long long t;
+    struct timeval  tv;
+
+    gettimeofday( &tv, NULL );
+    t = (long long) tv.tv_sec * (long long) 1000000 +
+	(long long) tv.tv_usec;
+
+    return (double)(t - _glfwLibrary.Timer.t0) * _glfwLibrary.Timer.Resolution;
+}
+
+
+//========================================================================
+// Set timer value in seconds
+//========================================================================
+
+void _glfwPlatformSetTime( double t )
+{
+    long long t0;
+    struct timeval  tv;
+
+    gettimeofday( &tv, NULL );
+    t0 = (long long) tv.tv_sec * (long long) 1000000 +
+	 (long long) tv.tv_usec;
+
+    // Calulate new starting time
+    _glfwLibrary.Timer.t0 = t0 - (long long)(t/_glfwLibrary.Timer.Resolution);
+}
+
+
+//========================================================================
+// Put a thread to sleep for a specified amount of time
+//========================================================================
+
+void _glfwPlatformSleep( double time )
+{
+#ifdef _GLFW_HAS_PTHREAD
+
+    if( time == 0.0 )
+    {
+#ifdef _GLFW_HAS_SCHED_YIELD
+	sched_yield();
+#endif
+	return;
+    }
+
+    struct timeval  currenttime;
+    struct timespec wait;
+    pthread_mutex_t mutex;
+    pthread_cond_t  cond;
+    long dt_sec, dt_usec;
+
+    // Not all pthread implementations have a pthread_sleep() function. We
+    // do it the portable way, using a timed wait for a condition that we
+    // will never signal. NOTE: The unistd functions sleep/usleep suspends
+    // the entire PROCESS, not a signle thread, which is why we can not
+    // use them to implement glfwSleep.
+
+    // Set timeout time, relatvie to current time
+    gettimeofday( &currenttime, NULL );
+    dt_sec  = (long) time;
+    dt_usec = (long) ((time - (double)dt_sec) * 1000000.0);
+    wait.tv_nsec = (currenttime.tv_usec + dt_usec) * 1000L;
+    if( wait.tv_nsec > 1000000000L )
+    {
+        wait.tv_nsec -= 1000000000L;
+        dt_sec++;
+    }
+    wait.tv_sec  = currenttime.tv_sec + dt_sec;
+
+    // Initialize condition and mutex objects
+    pthread_mutex_init( &mutex, NULL );
+    pthread_cond_init( &cond, NULL );
+
+    // Do a timed wait
+    pthread_mutex_lock( &mutex );
+    pthread_cond_timedwait( &cond, &mutex, &wait );
+    pthread_mutex_unlock( &mutex );
+
+    // Destroy condition and mutex objects
+    pthread_mutex_destroy( &mutex );
+    pthread_cond_destroy( &cond );
+
+#else
+
+    // For systems without PTHREAD, use unistd usleep
+    if( time > 0 )
+    {
+        usleep( (unsigned int) (time*1000000) );
+    }
+
+#endif // _GLFW_HAS_PTHREAD
+}
+