//======================================================================== // GLFW 3.4 POSIX - www.glfw.org //------------------------------------------------------------------------ // Copyright (c) 2002-2006 Marcus Geelnard // Copyright (c) 2006-2017 Camilla Löwy // // 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. // //======================================================================== // It is fine to use C99 in this file because it will not be built with VS //======================================================================== #include "internal.h" #include #include ////////////////////////////////////////////////////////////////////////// ////// GLFW internal API ////// ////////////////////////////////////////////////////////////////////////// // Initialise timer // void _glfwInitTimerPOSIX(void) { #if defined(CLOCK_MONOTONIC) struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) { _glfw.timer.posix.monotonic = true; _glfw.timer.posix.frequency = 1000000000; } else #endif { _glfw.timer.posix.monotonic = false; _glfw.timer.posix.frequency = 1000000; } } ////////////////////////////////////////////////////////////////////////// ////// GLFW platform API ////// ////////////////////////////////////////////////////////////////////////// uint64_t _glfwPlatformGetTimerValue(void) { #if defined(CLOCK_MONOTONIC) if (_glfw.timer.posix.monotonic) { struct timespec ts; clock_gettime(CLOCK_MONOTONIC, &ts); return (uint64_t) ts.tv_sec * (uint64_t) 1000000000 + (uint64_t) ts.tv_nsec; } else #endif { struct timeval tv; gettimeofday(&tv, NULL); return (uint64_t) tv.tv_sec * (uint64_t) 1000000 + (uint64_t) tv.tv_usec; } } uint64_t _glfwPlatformGetTimerFrequency(void) { return _glfw.timer.posix.frequency; }