From: José Fonseca Date: Sun, 13 Apr 2008 03:23:26 +0000 (+0900) Subject: gallium: OS independent time-manipulation functions. X-Git-Tag: 062012170305~17580^2~390^2~1907 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=cd5931240688cb8bd12834e3ba23f858f26dbf8c;p=profile%2Fivi%2Fmesa.git gallium: OS independent time-manipulation functions. --- diff --git a/src/gallium/auxiliary/util/Makefile b/src/gallium/auxiliary/util/Makefile index 9b6c270..fe82fa6 100644 --- a/src/gallium/auxiliary/util/Makefile +++ b/src/gallium/auxiliary/util/Makefile @@ -14,7 +14,8 @@ C_SOURCES = \ u_hash_table.c \ u_mm.c \ u_simple_shaders.c \ - u_snprintf.c + u_snprintf.c \ + u_mm.c include ../../Makefile.template diff --git a/src/gallium/auxiliary/util/SConscript b/src/gallium/auxiliary/util/SConscript index 9b3929e..d55d2c7 100644 --- a/src/gallium/auxiliary/util/SConscript +++ b/src/gallium/auxiliary/util/SConscript @@ -15,6 +15,7 @@ util = env.ConvenienceLibrary( 'u_mm.c', 'u_simple_shaders.c', 'u_snprintf.c', + 'u_time.c', ]) auxiliaries.insert(0, util) diff --git a/src/gallium/auxiliary/util/u_time.c b/src/gallium/auxiliary/util/u_time.c new file mode 100644 index 0000000..e6c0b19 --- /dev/null +++ b/src/gallium/auxiliary/util/u_time.c @@ -0,0 +1,152 @@ +/************************************************************************** + * + * 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 + */ + + +#ifndef WIN32 +#include +#else +#include +#include +#endif + +#include "util/u_time.h" + + +#ifdef WIN32 +static LONGLONG frequency = 0; +#endif + + +void +util_time_get(struct util_time *t) +{ +#ifndef WIN32 + gettimeofday(&t->tv, NULL); +#else + EngQueryPerformanceCounter(&t->counter); +#endif +} + + +void +util_time_add(const struct util_time *t1, + int64_t usecs, + struct util_time *t2) +{ +#ifndef WIN32 + t2->tv.tv_sec = t1->tv.tv_sec + usecs / 1000000; + t2->tv.tv_usec = t1->tv.tv_usec + usecs % 1000000; +#else + if(!frequency) + EngQueryPerformanceFrequency(&frequency); + t2->counter = t1->counter + (usecs * frequency + 999999LL)/1000000LL; +#endif +} + + +int64_t +util_time_diff(const struct util_time *t1, + const struct util_time *t2) +{ +#ifndef WIN32 + return (t2->tv.tv_usec - t1->tv.tv_usec) + + (t2->tv.tv_sec - t1->tv.tv_sec)*1000000; +#else + return (t2->counter - t1->counter)*1000000LL/frequency; +#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) +{ +#ifndef WIN32 + 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; +#else + if (t1->counter < t2->counter) + return -1; + else if(t1->counter > t2->counter) + return 1; + else + return 0; +#endif +} + + +int +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; +} + + +#ifdef WIN32 +void util_time_usleep(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 diff --git a/src/gallium/auxiliary/util/u_time.h b/src/gallium/auxiliary/util/u_time.h new file mode 100644 index 0000000..32035cc --- /dev/null +++ b/src/gallium/auxiliary/util/u_time.h @@ -0,0 +1,99 @@ +/************************************************************************** + * + * 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 + */ + +#ifndef U_TIME_H_ +#define U_TIME_H_ + + +#ifndef WIN32 +#include /* timeval */ +#include /* usleep */ +#endif + +#include "pipe/p_compiler.h" + + +#ifdef __cplusplus +extern "C" { +#endif + + +/** + * Time abstraction. + * + * Do not access this structure directly. Use the provided function instead. + */ +struct util_time +{ +#ifndef WIN32 + struct timeval tv; +#else + long long counter; +#endif +}; + + +void +util_time_get(struct util_time *t); + +void +util_time_add(const struct util_time *t1, + int64_t usecs, + struct util_time *t2); + +int64_t +util_time_diff(const struct util_time *t1, + const struct util_time *t2); + +/** + * Returns zero when the timeout expires, non zero otherwise. + */ +int +util_time_timeout(const struct util_time *start, + const struct util_time *end, + const struct util_time *curr); + +#ifndef WIN32 +#define util_time_sleep usleep +#else +int +util_time_sleep(unsigned usecs); +#endif + + +#ifdef __cplusplus +} +#endif + +#endif /* U_TIME_H_ */