/* *  Copyright (c) 2010 The WebM project authors. All Rights Reserved. * *  Use of this source code is governed by a BSD-style license *  that can be found in the LICENSE file in the root of the source *  tree. An additional intellectual property rights grant can be found *  in the file PATENTS.  All contributing project authors may *  be found in the AUTHORS file in the root of the source tree. */ #include "vpx_config.h"#include "vp8_rtcd.h"#if VPX_ARCH_ARM#include "vpx_ports/arm.h"#elif VPX_ARCH_X86 || VPX_ARCH_X86_64#include "vpx_ports/x86.h"#elif VPX_ARCH_PPC#include "vpx_ports/ppc.h"#elif VPX_ARCH_MIPS#include "vpx_ports/mips.h"#endif#include "vp8/common/onyxc_int.h"#include "vp8/common/systemdependent.h" #if CONFIG_MULTITHREAD#if HAVE_UNISTD_H && !defined(__OS2__)#include <unistd.h>#elif defined(_WIN32)#include <windows.h>typedef void(WINAPI *PGNSI)(LPSYSTEM_INFO);#elif defined(__OS2__)#define INCL_DOS#define INCL_DOSSPINLOCK#include <os2.h>#endif#endif #if CONFIG_MULTITHREADstatic int get_cpu_count(void) {  int core_count = 16; #if HAVE_UNISTD_H && !defined(__OS2__)#if defined(_SC_NPROCESSORS_ONLN)  core_count = (int)sysconf(_SC_NPROCESSORS_ONLN);#elif defined(_SC_NPROC_ONLN)  core_count = (int)sysconf(_SC_NPROC_ONLN);#endif#elif defined(_WIN32)  {#if _WIN32_WINNT >= 0x0501    SYSTEM_INFO sysinfo;    GetNativeSystemInfo(&sysinfo);#else    PGNSI pGNSI;    SYSTEM_INFO sysinfo;     /* Call GetNativeSystemInfo if supported or     * GetSystemInfo otherwise. */     pGNSI = (PGNSI)GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")),                                  "GetNativeSystemInfo");    if (pGNSI != NULL)      pGNSI(&sysinfo);    else      GetSystemInfo(&sysinfo);#endif     core_count = (int)sysinfo.dwNumberOfProcessors;  }#elif defined(__OS2__)  {    ULONG proc_id;    ULONG status;     core_count = 0;    for (proc_id = 1;; ++proc_id) {      if (DosGetProcessorStatus(proc_id, &status)) break;       if (status == PROC_ONLINE) core_count++;    }  }#elif defined(__plan9__)  {    char *s = getenv("NPROC");    core_count = atoi(s ? s : "1");    fprint(2, "core count: %d\n", core_count);  }#else/* other platforms */#endif   return core_count > 0 ? core_count : 1;}#endif void vp8_machine_specific_config(VP8_COMMON *ctx) {#if CONFIG_MULTITHREAD  ctx->processor_core_count = get_cpu_count();#endif /* CONFIG_MULTITHREAD */ #if VPX_ARCH_ARM  ctx->cpu_caps = arm_cpu_caps();#elif VPX_ARCH_X86 || VPX_ARCH_X86_64  ctx->cpu_caps = x86_simd_caps();#elif VPX_ARCH_PPC  ctx->cpu_caps = ppc_simd_caps();#elif VPX_ARCH_MIPS  ctx->cpu_caps = mips_cpu_caps();#else  // generic-gnu targets.  ctx->cpu_caps = 0;#endif}