diff options
Diffstat (limited to 'src/gallium/auxiliary/os')
| -rw-r--r-- | src/gallium/auxiliary/os/os_time.c | 128 | ||||
| -rw-r--r-- | src/gallium/auxiliary/os/os_time.h | 92 |
2 files changed, 220 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/os/os_time.c b/src/gallium/auxiliary/os/os_time.c new file mode 100644 index 00000000000..6259142bec0 --- /dev/null +++ b/src/gallium/auxiliary/os/os_time.c @@ -0,0 +1,128 @@ +/************************************************************************** + * + * Copyright 2008-2010 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * @file + * OS independent time-manipulation functions. + * + * @author Jose Fonseca <[email protected]> + */ + + +#include "pipe/p_config.h" + +#if !defined(PIPE_OS_EMBEDDED) + +#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS) || defined(PIPE_OS_APPLE) || defined(PIPE_OS_HAIKU) +# include <sys/time.h> /* timeval */ +#elif defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY) +# include <windows.h> +# include <winddi.h> +#elif defined(PIPE_SUBSYSTEM_WINDOWS_MINIPORT) +# include <windows.h> +extern VOID KeQuerySystemTime(PLARGE_INTEGER); +#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER) || defined(PIPE_SUBSYSTEM_WINDOWS_CE) +# include <windows.h> +#else +# error Unsupported OS +#endif + +#include "os_time.h" + + +int64_t +os_time_get(void) +{ +#if defined(PIPE_OS_UNIX) + + struct timeval tv; + gettimeofday(&tv, NULL); + return tv.tv_usec + tv.tv_sec*1000000LL; + +#elif defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY) + + static LONGLONG frequency; + LONGLONG counter; + if(!frequency) + EngQueryPerformanceFrequency(&frequency); + EngQueryPerformanceCounter(&counter); + return counter*INT64_C(1000000)/frequency; + +#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER) || defined(PIPE_SUBSYSTEM_WINDOWS_CE) + + static LARGE_INTEGER frequency; + LARGE_INTEGER counter; + if(!frequency.QuadPart) + QueryPerformanceFrequency(&frequency); + QueryPerformanceCounter(&counter); + return counter.QuadPart*INT64_C(1000000)/frequency.QuadPart; + +#elif defined(PIPE_SUBSYSTEM_WINDOWS_MINIPORT) + + /* Updated every 10 miliseconds, measured in units of 100 nanoseconds. + * http://msdn.microsoft.com/en-us/library/ms801642.aspx */ + LARGE_INTEGER counter; + KeQuerySystemTime(&counter); + return counter.QuadPart/10; + +#endif +} + + +#if defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY) + +void +os_time_sleep(int64_t usecs) +{ + static LONGLONG frequency; + LONGLONG start, curr, end; + + EngQueryPerformanceCounter(&start); + + if(!frequency) + EngQueryPerformanceFrequency(&frequency); + + end = start + (usecs * frequency + 999999LL)/1000000LL; + + do { + EngQueryPerformanceCounter(&curr); + } while(start <= curr && curr < end || + end < start && (curr < end || start <= curr)); +} + +#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER) + +void +os_time_sleep(int64_t usecs) +{ + Sleep((usecs + 999) / 1000); +} + +#endif + + +#endif /* !PIPE_OS_EMBEDDED */ diff --git a/src/gallium/auxiliary/os/os_time.h b/src/gallium/auxiliary/os/os_time.h new file mode 100644 index 00000000000..5b55c1b3747 --- /dev/null +++ b/src/gallium/auxiliary/os/os_time.h @@ -0,0 +1,92 @@ +/************************************************************************** + * + * Copyright 2008-2010 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * @file + * OS independent time-manipulation functions. + * + * @author Jose Fonseca <[email protected]> + */ + +#ifndef _OS_TIME_H_ +#define _OS_TIME_H_ + + +#include "pipe/p_config.h" + +#if defined(PIPE_OS_UNIX) +# include <unistd.h> /* usleep */ +#endif + +#include "pipe/p_compiler.h" + + +#ifdef __cplusplus +extern "C" { +#endif + + +/* + * Get the current time in microseconds from an unknown base. + */ +int64_t +os_time_get(void); + + +/* + * Sleep. + */ +#if defined(PIPE_OS_UNIX) +#define os_time_sleep(_usecs) usleep(_usecs) +#else +void +os_time_sleep(int64_t usecs); +#endif + + +/* + * Helper function for detecting time outs, taking in account overflow. + * + * Returns true the the current time has elapsed beyond the specified interval. + */ +static INLINE boolean +os_time_timeout(int64_t start, + int64_t end, + int64_t curr) +{ + if(start <= end) + return !(start <= curr && curr < end); + else + return !((start <= curr) || (curr < end)); +} + + +#ifdef __cplusplus +} +#endif + +#endif /* _OS_TIME_H_ */ |