1/* 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 12#include "vpx_config.h" 13#include "vp8_rtcd.h" 14#if ARCH_ARM 15#include "vpx_ports/arm.h" 16#elif ARCH_X86 || ARCH_X86_64 17#include "vpx_ports/x86.h" 18#endif 19#include "vp8/common/onyxc_int.h" 20 21#if CONFIG_MULTITHREAD 22#if HAVE_UNISTD_H && !defined(__OS2__) 23#include <unistd.h> 24#elif defined(_WIN32) 25#include <windows.h> 26typedef void (WINAPI *PGNSI)(LPSYSTEM_INFO); 27#elif defined(__OS2__) 28#define INCL_DOS 29#define INCL_DOSSPINLOCK 30#include <os2.h> 31#endif 32#endif 33 34#if CONFIG_MULTITHREAD 35static int get_cpu_count() 36{ 37 int core_count = 16; 38 39#if HAVE_UNISTD_H && !defined(__OS2__) 40#if defined(_SC_NPROCESSORS_ONLN) 41 core_count = sysconf(_SC_NPROCESSORS_ONLN); 42#elif defined(_SC_NPROC_ONLN) 43 core_count = sysconf(_SC_NPROC_ONLN); 44#endif 45#elif defined(_WIN32) 46 { 47 PGNSI pGNSI; 48 SYSTEM_INFO sysinfo; 49 50 /* Call GetNativeSystemInfo if supported or 51 * GetSystemInfo otherwise. */ 52 53 pGNSI = (PGNSI) GetProcAddress( 54 GetModuleHandle(TEXT("kernel32.dll")), "GetNativeSystemInfo"); 55 if (pGNSI != NULL) 56 pGNSI(&sysinfo); 57 else 58 GetSystemInfo(&sysinfo); 59 60 core_count = sysinfo.dwNumberOfProcessors; 61 } 62#elif defined(__OS2__) 63 { 64 ULONG proc_id; 65 ULONG status; 66 67 core_count = 0; 68 for (proc_id = 1; ; proc_id++) 69 { 70 if (DosGetProcessorStatus(proc_id, &status)) 71 break; 72 73 if (status == PROC_ONLINE) 74 core_count++; 75 } 76 } 77#else 78 /* other platforms */ 79#endif 80 81 return core_count > 0 ? core_count : 1; 82} 83#endif 84 85void vp8_clear_system_state_c() {}; 86 87void vp8_machine_specific_config(VP8_COMMON *ctx) 88{ 89#if CONFIG_MULTITHREAD 90 ctx->processor_core_count = get_cpu_count(); 91#endif /* CONFIG_MULTITHREAD */ 92 93#if ARCH_ARM 94 ctx->cpu_caps = arm_cpu_caps(); 95#elif ARCH_X86 || ARCH_X86_64 96 ctx->cpu_caps = x86_simd_caps(); 97#endif 98} 99