+++ /dev/null
-/*M///////////////////////////////////////////////////////////////////////////////////////
-//
-// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
-//
-// By downloading, copying, installing or using the software you agree to this license.
-// If you do not agree to this license, do not download, install,
-// copy or use the software.
-//
-//
-// Intel License Agreement
-// For Open Source Computer Vision Library
-//
-// Copyright (C) 2000, Intel Corporation, all rights reserved.
-// Third party copyrights are property of their respective owners.
-//
-// Redistribution and use in source and binary forms, with or without modification,
-// are permitted provided that the following conditions are met:
-//
-// * Redistribution's of source code must retain the above copyright notice,
-// this list of conditions and the following disclaimer.
-//
-// * Redistribution's in binary form must reproduce the above copyright notice,
-// this list of conditions and the following disclaimer in the documentation
-// and/or other materials provided with the distribution.
-//
-// * The name of Intel Corporation may not be used to endorse or promote products
-// derived from this software without specific prior written permission.
-//
-// This software is provided by the copyright holders and contributors "as is" and
-// any express or implied warranties, including, but not limited to, the implied
-// warranties of merchantability and fitness for a particular purpose are disclaimed.
-// In no event shall the Intel Corporation or contributors be liable for any direct,
-// indirect, incidental, special, exemplary, or consequential damages
-// (including, but not limited to, procurement of substitute goods or services;
-// loss of use, data, or profits; or business interruption) however caused
-// and on any theory of liability, whether in contract, strict liability,
-// or tort (including negligence or otherwise) arising in any way out of
-// the use of this software, even if advised of the possibility of such damage.
-//
-//M*/
-
-
-/****************************************************************************************/
-/* Dynamic detection and loading of IPP modules */
-/****************************************************************************************/
-
-#include "_cxcore.h"
-
-#if defined _MSC_VER && _MSC_VER >= 1200
-#pragma warning( disable: 4115 ) /* type definition in () */
-#endif
-
-#if defined _MSC_VER && defined WIN64 && !defined EM64T
-#pragma optimize( "", off )
-#endif
-
-#if defined WIN32 || defined WIN64
-#include <windows.h>
-#else
-#include <dlfcn.h>
-#include <sys/time.h>
-#endif
-
-#include <string.h>
-#include <stdio.h>
-#include <ctype.h>
-
-#define CV_PROC_GENERIC 0
-#define CV_PROC_SHIFT 10
-#define CV_PROC_ARCH_MASK ((1 << CV_PROC_SHIFT) - 1)
-#define CV_PROC_IA32_GENERIC 1
-#define CV_PROC_IA32_WITH_MMX (CV_PROC_IA32_GENERIC|(2 << CV_PROC_SHIFT))
-#define CV_PROC_IA32_WITH_SSE (CV_PROC_IA32_GENERIC|(3 << CV_PROC_SHIFT))
-#define CV_PROC_IA32_WITH_SSE2 (CV_PROC_IA32_GENERIC|(4 << CV_PROC_SHIFT))
-#define CV_PROC_IA64 2
-#define CV_PROC_EM64T 3
-#define CV_GET_PROC_ARCH(model) ((model) & CV_PROC_ARCH_MASK)
-
-typedef struct CvProcessorInfo
-{
- int model;
- int count;
- double frequency; // clocks per microsecond
-}
-CvProcessorInfo;
-
-#undef MASM_INLINE_ASSEMBLY
-
-#if defined WIN32 && !defined WIN64
-
-#if defined _MSC_VER
-#define MASM_INLINE_ASSEMBLY 1
-#elif defined __BORLANDC__
-
-#if __BORLANDC__ >= 0x560
-#define MASM_INLINE_ASSEMBLY 1
-#endif
-
-#endif
-
-#endif
-
-/*
- determine processor type
-*/
-static void
-icvInitProcessorInfo( CvProcessorInfo* cpu_info )
-{
- memset( cpu_info, 0, sizeof(*cpu_info) );
- cpu_info->model = CV_PROC_GENERIC;
-
-#if defined WIN32 || defined WIN64
-
-#ifndef PROCESSOR_ARCHITECTURE_AMD64
-#define PROCESSOR_ARCHITECTURE_AMD64 9
-#endif
-
-#ifndef PROCESSOR_ARCHITECTURE_IA32_ON_WIN64
-#define PROCESSOR_ARCHITECTURE_IA32_ON_WIN64 10
-#endif
-
- SYSTEM_INFO sys;
- LARGE_INTEGER freq;
-
- GetSystemInfo( &sys );
-
- if( sys.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_INTEL &&
- sys.dwProcessorType == PROCESSOR_INTEL_PENTIUM && sys.wProcessorLevel >= 6 )
- {
- int version = 0, features = 0, family = 0;
- int id = 0;
- HKEY key = 0;
-
- cpu_info->count = (int)sys.dwNumberOfProcessors;
- unsigned long val = 0, sz = sizeof(val);
-
- if( RegOpenKeyEx( HKEY_LOCAL_MACHINE, "HARDWARE\\DESCRIPTION\\SYSTEM\\CentralProcessor\\0\\",
- 0, KEY_QUERY_VALUE, &key ) >= 0 )
- {
- if( RegQueryValueEx( key, "~MHz", 0, 0, (uchar*)&val, &sz ) >= 0 )
- cpu_info->frequency = (double)val;
- RegCloseKey( key );
- }
-
-#ifdef MASM_INLINE_ASSEMBLY
- __asm
- {
- /* use CPUID to determine the features supported */
- pushfd
- mov eax, 1
- push ebx
- push esi
- push edi
-#ifdef __BORLANDC__
- db 0fh
- db 0a2h
-#else
- _emit 0x0f
- _emit 0xa2
-#endif
- pop edi
- pop esi
- pop ebx
- mov version, eax
- mov features, edx
- popfd
- }
-#elif defined WIN32 && __GNUC__ > 2
- asm volatile
- (
- "movl $1,%%eax\n\t"
- ".byte 0x0f; .byte 0xa2\n\t"
- "movl %%eax, %0\n\t"
- "movl %%edx, %1\n\t"
- : "=r"(version), "=r" (features)
- :
- : "%ebx", "%esi", "%edi"
- );
-#else
- {
- static const char cpuid_code[] =
- "\x53\x56\x57\xb8\x01\x00\x00\x00\x0f\xa2\x5f\x5e\x5b\xc3";
- typedef int64 (CV_CDECL * func_ptr)(void);
- func_ptr cpuid = (func_ptr)(void*)cpuid_code;
- int64 cpuid_val = cpuid();
- version = (int)cpuid_val;
- features = (int)(cpuid_val >> 32);
- }
-#endif
-
- #define ICV_CPUID_M6 ((1<<15)|(1<<23)) /* cmov + MMX */
- #define ICV_CPUID_A6 ((1<<25)|ICV_CPUID_M6) /* <all above> + SSE */
- #define ICV_CPUID_W7 ((1<<26)|ICV_CPUID_A6) /* <all above> + SSE2 */
-
- family = (version >> 8) & 15;
- if( family >= 6 && (features & ICV_CPUID_M6) != 0 ) /* Pentium II or higher */
- id = features & ICV_CPUID_W7;
-
- cpu_info->model = id == ICV_CPUID_W7 ? CV_PROC_IA32_WITH_SSE2 :
- id == ICV_CPUID_A6 ? CV_PROC_IA32_WITH_SSE :
- id == ICV_CPUID_M6 ? CV_PROC_IA32_WITH_MMX :
- CV_PROC_IA32_GENERIC;
- }
- else
- {
-#if defined EM64T
- if( sys.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64 )
- cpu_info->model = CV_PROC_EM64T;
-#elif defined WIN64
- if( sys.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_IA64 )
- cpu_info->model = CV_PROC_IA64;
-#endif
- if( QueryPerformanceFrequency( &freq ) )
- cpu_info->frequency = (double)freq.QuadPart;
- }
-#else
- cpu_info->frequency = 1;
-
-#ifdef __x86_64__
- cpu_info->model = CV_PROC_EM64T;
-#elif defined __ia64__
- cpu_info->model = CV_PROC_IA64;
-#elif !defined __i386__
- cpu_info->model = CV_PROC_GENERIC;
-#else
- cpu_info->model = CV_PROC_IA32_GENERIC;
-
- // reading /proc/cpuinfo file (proc file system must be supported)
- FILE *file = fopen( "/proc/cpuinfo", "r" );
-
- if( file )
- {
- char buffer[1024];
- int max_size = sizeof(buffer)-1;
-
- for(;;)
- {
- const char* ptr = fgets( buffer, max_size, file );
- if( !ptr )
- break;
- if( strncmp( buffer, "flags", 5 ) == 0 )
- {
- if( strstr( buffer, "mmx" ) && strstr( buffer, "cmov" ))
- {
- cpu_info->model = CV_PROC_IA32_WITH_MMX;
- if( strstr( buffer, "xmm" ) || strstr( buffer, "sse" ))
- {
- cpu_info->model = CV_PROC_IA32_WITH_SSE;
- if( strstr( buffer, "emm" ))
- cpu_info->model = CV_PROC_IA32_WITH_SSE2;
- }
- }
- }
- else if( strncmp( buffer, "cpu MHz", 7 ) == 0 )
- {
- char* pos = strchr( buffer, ':' );
- if( pos )
- cpu_info->frequency = strtod( pos + 1, &pos );
- }
- }
-
- fclose( file );
- if( CV_GET_PROC_ARCH(cpu_info->model) != CV_PROC_IA32_GENERIC )
- cpu_info->frequency = 1;
- else
- assert( cpu_info->frequency > 1 );
- }
-#endif
-#endif
-}
-
-
-CV_INLINE const CvProcessorInfo*
-icvGetProcessorInfo()
-{
- static CvProcessorInfo cpu_info;
- static int init_cpu_info = 0;
- if( !init_cpu_info )
- {
- icvInitProcessorInfo( &cpu_info );
- init_cpu_info = 1;
- }
- return &cpu_info;
-}
-
-
-/****************************************************************************************/
-/* Make functions descriptions */
-/****************************************************************************************/
-
-#undef IPCVAPI_EX
-#define IPCVAPI_EX(type,func_name,names,modules,arg) \
- { (void**)&func_name##_p, (void*)(size_t)-1, names, modules, 0 },
-
-#undef IPCVAPI_C_EX
-#define IPCVAPI_C_EX(type,func_name,names,modules,arg) \
- { (void**)&func_name##_p, (void*)(size_t)-1, names, modules, 0 },
-
-static CvPluginFuncInfo cxcore_ipp_tab[] =
-{
-#undef _CXCORE_IPP_H_
-#include "_cxipp.h"
-#undef _CXCORE_IPP_H_
- {0, 0, 0, 0, 0}
-};
-
-
-/*
- determine processor type, load appropriate dll and
- initialize all function pointers
-*/
-#if defined WIN32 || defined WIN64
-#define DLL_PREFIX ""
-#define DLL_SUFFIX ".dll"
-#else
-#define DLL_PREFIX "lib"
-#define DLL_SUFFIX ".so"
-#define LoadLibrary(name) dlopen(name, RTLD_LAZY)
-#define FreeLibrary(name) dlclose(name)
-#define GetProcAddress dlsym
-typedef void* HMODULE;
-#endif
-
-#if 0 /*def _DEBUG*/
-#define DLL_DEBUG_FLAG "d"
-#else
-#define DLL_DEBUG_FLAG ""
-#endif
-
-#define VERBOSE_LOADING 0
-
-#if VERBOSE_LOADING
-#define ICV_PRINTF(args) printf args; fflush(stdout)
-#else
-#define ICV_PRINTF(args)
-#endif
-
-typedef struct CvPluginInfo
-{
- const char* basename;
- HMODULE handle;
- char name[100];
-}
-CvPluginInfo;
-
-static CvPluginInfo plugins[CV_PLUGIN_MAX];
-static CvModuleInfo cxcore_info = { 0, "cxcore", CV_VERSION, cxcore_ipp_tab };
-
-CvModuleInfo *CvModule::first = 0, *CvModule::last = 0;
-
-CvModule::CvModule( CvModuleInfo* _info )
-{
- cvRegisterModule( _info );
- info = last;
-}
-
-CvModule::~CvModule()
-{
- if( info )
- {
- CvModuleInfo* p = first;
- for( ; p != 0 && p->next != info; p = p->next )
- ;
- if( p )
- p->next = info->next;
- if( first == info )
- first = info->next;
- if( last == info )
- last = p;
- cvFree( &info );
- info = 0;
- }
-}
-
-static int
-icvUpdatePluginFuncTab( CvPluginFuncInfo* func_tab )
-{
- int i, loaded_functions = 0;
-
- // 1. reset pointers
- for( i = 0; func_tab[i].func_addr != 0; i++ )
- {
- if( func_tab[i].default_func_addr == (void*)(size_t)-1 )
- func_tab[i].default_func_addr = *func_tab[i].func_addr;
- else
- *func_tab[i].func_addr = func_tab[i].default_func_addr;
- func_tab[i].loaded_from = 0;
- }
-
- // ippopencv substitutes all the other IPP modules
- if( plugins[CV_PLUGIN_OPTCV].handle != 0 )
- {
- for( i = 2; i < CV_PLUGIN_MKL; i++ )
- {
- assert( plugins[i].handle == 0 );
- plugins[i].handle = plugins[CV_PLUGIN_OPTCV].handle;
- }
- }
-
- // 2. try to find corresponding functions in ipp* and reassign pointers to them
- for( i = 0; func_tab[i].func_addr != 0; i++ )
- {
- #if defined _MSC_VER && _MSC_VER >= 1200
- #pragma warning( disable: 4054 4055 ) /* converting pointers to code<->data */
- #endif
- char name[100];
- int j = 0, idx = 0;
-
- assert( func_tab[i].loaded_from == 0 );
-
- if( func_tab[i].search_modules )
- {
- uchar* addr = 0;
- const char* name_ptr = func_tab[i].func_names;
-
- for( ; j < 10 && name_ptr; j++ )
- {
- const char* name_start = name_ptr;
- const char* name_end;
- while( !isalpha(name_start[0]) && name_start[0] != '\0' )
- name_start++;
- if( !name_start[0] )
- name_start = 0;
- name_end = name_start ? strchr( name_start, ',' ) : 0;
- idx = (func_tab[i].search_modules / (1<<j*4)) % CV_PLUGIN_MAX;
-
- if( plugins[idx].handle != 0 && name_start )
- {
- if( name_end != 0 )
- {
- strncpy( name, name_start, name_end - name_start );
- name[name_end - name_start] = '\0';
- }
- else
- strcpy( name, name_start );
-
- addr = (uchar*)GetProcAddress( plugins[idx].handle, name );
- if( addr )
- break;
- }
- name_ptr = name_end;
- }
-
- if( addr )
- {
- /*#ifdef WIN32
- while( *addr == 0xE9 )
- addr += 5 + *((int*)(addr + 1));
- #endif*/
- *func_tab[i].func_addr = addr;
- func_tab[i].loaded_from = idx; // store index of the module
- // that contain the loaded function
- loaded_functions++;
- ICV_PRINTF(("%s: \t%s\n", name, plugins[idx].name ));
- }
-
- #if defined _MSC_VER && _MSC_VER >= 1200
- #pragma warning( default: 4054 4055 )
- #endif
- }
- }
-
-#if VERBOSE_LOADING
- {
- int not_loaded = 0;
- ICV_PRINTF(("\nTotal loaded: %d\n\n", loaded_functions ));
- printf( "***************************************************\nNot loaded ...\n\n" );
- for( i = 0; func_tab[i].func_addr != 0; i++ )
- if( !func_tab[i].loaded_from )
- {
- ICV_PRINTF(( "%s\n", func_tab[i].func_names ));
- not_loaded++;
- }
-
- ICV_PRINTF(("\nTotal: %d\n", not_loaded ));
- }
-#endif
-
- if( plugins[CV_PLUGIN_OPTCV].handle != 0 )
- {
- for( i = 2; i < CV_PLUGIN_MKL; i++ )
- plugins[i].handle = 0;
- }
-
- return loaded_functions;
-}
-
-
-CV_IMPL int
-cvRegisterModule( const CvModuleInfo* module )
-{
- CvModuleInfo* module_copy = 0;
-
- CV_FUNCNAME( "cvRegisterModule" );
-
- __BEGIN__;
-
- size_t name_len, version_len;
-
- CV_ASSERT( module != 0 && module->name != 0 && module->version != 0 );
-
- name_len = strlen(module->name);
- version_len = strlen(module->version);
-
- CV_CALL( module_copy = (CvModuleInfo*)cvAlloc( sizeof(*module_copy) +
- name_len + 1 + version_len + 1 ));
-
- *module_copy = *module;
- module_copy->name = (char*)(module_copy + 1);
- module_copy->version = (char*)(module_copy + 1) + name_len + 1;
-
- memcpy( (void*)module_copy->name, module->name, name_len + 1 );
- memcpy( (void*)module_copy->version, module->version, version_len + 1 );
- module_copy->next = 0;
-
- if( CvModule::first == 0 )
- CvModule::first = module_copy;
- else
- CvModule::last->next = module_copy;
- CvModule::last = module_copy;
-
- if( CvModule::first == CvModule::last )
- {
- CV_CALL( cvUseOptimized(1));
- }
- else
- {
- CV_CALL( icvUpdatePluginFuncTab( module_copy->func_tab ));
- }
-
- __END__;
-
- if( cvGetErrStatus() < 0 && module_copy )
- cvFree( &module_copy );
-
- return module_copy ? 0 : -1;
-}
-
-
-CV_IMPL int
-cvUseOptimized( int load_flag )
-{
- int i, loaded_modules = 0, loaded_functions = 0;
- CvModuleInfo* module;
- const CvProcessorInfo* cpu_info = icvGetProcessorInfo();
- int arch = CV_GET_PROC_ARCH(cpu_info->model);
-
- // TODO: implement some more elegant way
- // to find the latest and the greatest IPP/MKL libraries
- static const char* opencv_sfx[] = { "100", "099", "097", 0 };
- static const char* ipp_sfx_ia32[] = { "-6.1", "-6.0", "-5.3", "-5.2", "-5.1", "", 0 };
- static const char* ipp_sfx_ia64[] = { "64-6.1", "64-6.0", "64-5.3", "64-5.2", "64-5.1", "64", 0 };
- static const char* ipp_sfx_em64t[] = { "em64t-6.1", "em64t-6.0", "em64t-5.3", "em64t-5.2", "em64t-5.1", "em64t", 0 };
- static const char* mkl_sfx_ia32[] = { "p4", "p3", "def", 0 };
- static const char* mkl_sfx_ia64[] = { "i2p", "itp", 0 };
- static const char* mkl_sfx_em64t[] = { "def", 0 };
- const char** ipp_suffix = arch == CV_PROC_IA64 ? ipp_sfx_ia64 :
- arch == CV_PROC_EM64T ? ipp_sfx_em64t : ipp_sfx_ia32;
- const char** mkl_suffix = arch == CV_PROC_IA64 ? mkl_sfx_ia64 :
- arch == CV_PROC_EM64T ? mkl_sfx_em64t : mkl_sfx_ia32;
-
- for( i = 0; i < CV_PLUGIN_MAX; i++ )
- plugins[i].basename = 0;
- plugins[CV_PLUGIN_NONE].basename = 0;
- plugins[CV_PLUGIN_NONE].name[0] = '\0';
- plugins[CV_PLUGIN_OPTCV].basename = "ippopencv";
- plugins[CV_PLUGIN_IPPCV].basename = "ippcv";
- plugins[CV_PLUGIN_IPPI].basename = "ippi";
- plugins[CV_PLUGIN_IPPS].basename = "ipps";
- plugins[CV_PLUGIN_IPPVM].basename = "ippvm";
- plugins[CV_PLUGIN_IPPCC].basename = "ippcc";
- plugins[CV_PLUGIN_MKL].basename = "mkl_";
-
- // try to load optimized dlls
- for( i = 1; i < CV_PLUGIN_MAX; i++ )
- {
- // unload previously loaded optimized modules
- if( plugins[i].handle )
- {
- FreeLibrary( plugins[i].handle );
- plugins[i].handle = 0;
- }
-
- // do not load regular IPP modules if the custom merged IPP module is already found.
- if( i < CV_PLUGIN_MKL && load_flag && plugins[CV_PLUGIN_OPTCV].handle != 0 )
- continue;
-
- if( load_flag && plugins[i].basename &&
- (arch == CV_PROC_IA32_GENERIC || arch == CV_PROC_IA64 || arch == CV_PROC_EM64T) )
- {
- const char** suffix = i == CV_PLUGIN_OPTCV ? opencv_sfx :
- i < CV_PLUGIN_MKL ? ipp_suffix : mkl_suffix;
- if( suffix == mkl_sfx_ia32 )
- {
- if( !(cpu_info->model & CV_PROC_IA32_WITH_SSE2) )
- suffix++;
- if( !(cpu_info->model & CV_PROC_IA32_WITH_SSE) )
- suffix++;
- }
-
- for( ; *suffix != 0; suffix++ )
- {
- sprintf( plugins[i].name, DLL_PREFIX "%s%s" DLL_DEBUG_FLAG DLL_SUFFIX,
- plugins[i].basename, *suffix );
-
- ICV_PRINTF(("loading %s...\n", plugins[i].name ));
- plugins[i].handle = LoadLibrary( plugins[i].name );
- if( plugins[i].handle != 0 )
- {
- ICV_PRINTF(("%s loaded\n", plugins[i].name ));
- loaded_modules++;
- break;
- }
- #ifndef WIN32
- // temporary workaround for MacOSX
- sprintf( plugins[i].name, DLL_PREFIX "%s%s" DLL_DEBUG_FLAG ".dylib",
- plugins[i].basename, *suffix );
-
- ICV_PRINTF(("loading %s...\n", plugins[i].name ));
- plugins[i].handle = LoadLibrary( plugins[i].name );
- if( plugins[i].handle != 0 )
- {
- ICV_PRINTF(("%s loaded\n", plugins[i].name ));
- loaded_modules++;
- break;
- }
- #endif
- }
- }
- }
-
- for( module = CvModule::first; module != 0; module = module->next )
- loaded_functions += icvUpdatePluginFuncTab( module->func_tab );
-
- return loaded_functions;
-}
-
-CvModule cxcore_module( &cxcore_info );
-
-CV_IMPL void
-cvGetModuleInfo( const char* name, const char **version, const char **plugin_list )
-{
- static char joint_verinfo[1024] = "";
- static char plugin_list_buf[1024] = "";
-
- CV_FUNCNAME( "cvGetLibraryInfo" );
-
- if( version )
- *version = 0;
-
- if( plugin_list )
- *plugin_list = 0;
-
- __BEGIN__;
-
- CvModuleInfo* module;
-
- if( version )
- {
- if( name )
- {
- size_t i, name_len = strlen(name);
-
- for( module = CvModule::first; module != 0; module = module->next )
- {
- if( strlen(module->name) == name_len )
- {
- for( i = 0; i < name_len; i++ )
- {
- int c0 = toupper(module->name[i]), c1 = toupper(name[i]);
- if( c0 != c1 )
- break;
- }
- if( i == name_len )
- break;
- }
- }
- if( !module )
- CV_ERROR( CV_StsObjectNotFound, "The module is not found" );
-
- *version = module->version;
- }
- else
- {
- char* ptr = joint_verinfo;
-
- for( module = CvModule::first; module != 0; module = module->next )
- {
- sprintf( ptr, "%s: %s%s", module->name, module->version, module->next ? ", " : "" );
- ptr += strlen(ptr);
- }
-
- *version = joint_verinfo;
- }
- }
-
- if( plugin_list )
- {
- char* ptr = plugin_list_buf;
- int i;
-
- for( i = 0; i < CV_PLUGIN_MAX; i++ )
- if( plugins[i].handle != 0 )
- {
- sprintf( ptr, "%s, ", plugins[i].name );
- ptr += strlen(ptr);
- }
-
- if( ptr > plugin_list_buf )
- {
- ptr[-2] = '\0';
- *plugin_list = plugin_list_buf;
- }
- else
- *plugin_list = "";
- }
-
- __END__;
-}
-
-
-typedef int64 (CV_CDECL * rdtsc_func)(void);
-
-/* helper functions for RNG initialization and accurate time measurement */
-CV_IMPL int64 cvGetTickCount( void )
-{
- const CvProcessorInfo* cpu_info = icvGetProcessorInfo();
-
- if( cpu_info->frequency > 1 &&
- CV_GET_PROC_ARCH(cpu_info->model) == CV_PROC_IA32_GENERIC )
- {
-#ifdef MASM_INLINE_ASSEMBLY
- #ifdef __BORLANDC__
- __asm db 0fh
- __asm db 31h
- #else
- __asm _emit 0x0f;
- __asm _emit 0x31;
- #endif
-#elif (defined __GNUC__ || defined CV_ICC) && defined __i386__
- int64 t;
- asm volatile (".byte 0xf; .byte 0x31" /* "rdtsc" */ : "=A" (t));
- return t;
-#else
- static const char code[] = "\x0f\x31\xc3";
- rdtsc_func func = (rdtsc_func)(void*)code;
- return func();
-#endif
- }
- else
- {
-#if defined WIN32 || defined WIN64
- LARGE_INTEGER counter;
- QueryPerformanceCounter( &counter );
- return (int64)counter.QuadPart;
-#else
- struct timeval tv;
- struct timezone tz;
- gettimeofday( &tv, &tz );
- return (int64)tv.tv_sec*1000000 + tv.tv_usec;
-#endif
- }
-}
-
-CV_IMPL double cvGetTickFrequency()
-{
- return icvGetProcessorInfo()->frequency;
-}
-
-
-static int icvNumThreads = 0;
-static int icvNumProcs = 0;
-
-CV_IMPL int cvGetNumThreads(void)
-{
- if( !icvNumProcs )
- cvSetNumThreads(0);
- return icvNumThreads;
-}
-
-CV_IMPL void cvSetNumThreads( int threads )
-{
- if( !icvNumProcs )
- {
-#ifdef _OPENMP
- icvNumProcs = omp_get_num_procs();
- icvNumProcs = MIN( icvNumProcs, CV_MAX_THREADS );
-#else
- icvNumProcs = 1;
-#endif
- }
-
-#ifdef _OPENMP
- if( threads <= 0 )
- threads = icvNumProcs;
- //else
- // threads = MIN( threads, icvNumProcs );
-
- icvNumThreads = threads;
-#else
- icvNumThreads = 1;
-#endif
-}
-
-
-CV_IMPL int cvGetThreadNum(void)
-{
-#ifdef _OPENMP
- return omp_get_thread_num();
-#else
- return 0;
-#endif
-}
-
-
-/* End of file. */
projects / opencv / blobdiff