diff options
Diffstat (limited to 'src/gallium/auxiliary/util/u_time.c')
| -rw-r--r-- | src/gallium/auxiliary/util/u_time.c | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_time.c b/src/gallium/auxiliary/util/u_time.c new file mode 100644 index 00000000000..49dce752895 --- /dev/null +++ b/src/gallium/auxiliary/util/u_time.c @@ -0,0 +1,200 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * 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 TUNGSTEN GRAPHICS 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 <jrfonseca@tungstengraphics.com> + */ + + +#include "pipe/p_config.h" + +#if defined(PIPE_OS_LINUX) +#include <sys/time.h> +#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 "util/u_time.h" + + +#if defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY) || defined(PIPE_SUBSYSTEM_WINDOWS_USER) || defined(PIPE_SUBSYSTEM_WINDOWS_CE) + +static int64_t frequency = 0; + +static INLINE void +util_time_get_frequency(void) +{ + if(!frequency) { +#if defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY) + LONGLONG temp; + EngQueryPerformanceFrequency(&temp); + frequency = temp; +#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER) || defined(PIPE_SUBSYSTEM_WINDOWS_CE) + LARGE_INTEGER temp; + QueryPerformanceFrequency(&temp); + frequency = temp.QuadPart; +#endif + } +} +#endif + + +void +util_time_get(struct util_time *t) +{ +#if defined(PIPE_OS_LINUX) + gettimeofday(&t->tv, NULL); +#elif defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY) + LONGLONG temp; + EngQueryPerformanceCounter(&temp); + t->counter = temp; +#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 temp; + KeQuerySystemTime(&temp); + t->counter = temp.QuadPart; +#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER) || defined(PIPE_SUBSYSTEM_WINDOWS_CE) + LARGE_INTEGER temp; + QueryPerformanceCounter(&temp); + t->counter = temp.QuadPart; +#endif +} + + +void +util_time_add(const struct util_time *t1, + int64_t usecs, + struct util_time *t2) +{ +#if defined(PIPE_OS_LINUX) + t2->tv.tv_sec = t1->tv.tv_sec + usecs / 1000000; + t2->tv.tv_usec = t1->tv.tv_usec + usecs % 1000000; +#elif defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY) || defined(PIPE_SUBSYSTEM_WINDOWS_USER) || defined(PIPE_SUBSYSTEM_WINDOWS_CE) + util_time_get_frequency(); + t2->counter = t1->counter + (usecs * frequency + INT64_C(999999))/INT64_C(1000000); +#elif defined(PIPE_SUBSYSTEM_WINDOWS_MINIPORT) + /* 1 tick = 100 nano seconds. */ + t2->counter = t1->counter + usecs * 10; +#elif + LARGE_INTEGER temp; + LONGLONG freq; + freq = temp.QuadPart; + t2->counter = t1->counter + (usecs * freq)/1000000L; +#endif +} + + +int64_t +util_time_diff(const struct util_time *t1, + const struct util_time *t2) +{ +#if defined(PIPE_OS_LINUX) + return (t2->tv.tv_usec - t1->tv.tv_usec) + + (t2->tv.tv_sec - t1->tv.tv_sec)*1000000; +#elif defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY) || defined(PIPE_SUBSYSTEM_WINDOWS_USER) || defined(PIPE_SUBSYSTEM_WINDOWS_CE) + util_time_get_frequency(); + return (t2->counter - t1->counter)*INT64_C(1000000)/frequency; +#elif defined(PIPE_SUBSYSTEM_WINDOWS_MINIPORT) + return (t2->counter - t1->counter)/10; +#endif +} + + +/** + * Compare two time values. + * + * Not publicly available because it does not take in account wrap-arounds. + * Use util_time_timeout instead. + */ +static INLINE int +util_time_compare(const struct util_time *t1, + const struct util_time *t2) +{ +#if defined(PIPE_OS_LINUX) + if (t1->tv.tv_sec < t2->tv.tv_sec) + return -1; + else if(t1->tv.tv_sec > t2->tv.tv_sec) + return 1; + else if (t1->tv.tv_usec < t2->tv.tv_usec) + return -1; + else if(t1->tv.tv_usec > t2->tv.tv_usec) + return 1; + else + return 0; +#elif defined(PIPE_OS_WINDOWS) + if (t1->counter < t2->counter) + return -1; + else if(t1->counter > t2->counter) + return 1; + else + return 0; +#endif +} + + +boolean +util_time_timeout(const struct util_time *start, + const struct util_time *end, + const struct util_time *curr) +{ + if(util_time_compare(start, end) <= 0) + return !(util_time_compare(start, curr) <= 0 && util_time_compare(curr, end) < 0); + else + return !(util_time_compare(start, curr) <= 0 || util_time_compare(curr, end) < 0); +} + + +#if defined(PIPE_SUBSYSYEM_WINDOWS_DISPLAY) +void util_time_sleep(unsigned usecs) +{ + 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)); +} +#endif |