3299f88800
checking CPU capabilities Reported by Krzysztof Kaspruk. https://code.google.com/p/webm/issues/detail?id=532 Change-Id: I9efa693b0c33694c871189841b8ac59c1fc554e2
99 lines
2.3 KiB
C
99 lines
2.3 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "vpx_config.h"
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#include "vp8_rtcd.h"
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#if ARCH_ARM
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#include "vpx_ports/arm.h"
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#elif ARCH_X86 || ARCH_X86_64
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#include "vpx_ports/x86.h"
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#endif
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#include "vp8/common/onyxc_int.h"
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#if CONFIG_MULTITHREAD
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#if HAVE_UNISTD_H && !defined(__OS2__)
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#include <unistd.h>
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#elif defined(_WIN32)
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#include <windows.h>
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typedef void (WINAPI *PGNSI)(LPSYSTEM_INFO);
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#elif defined(__OS2__)
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#define INCL_DOS
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#define INCL_DOSSPINLOCK
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#include <os2.h>
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#endif
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#endif
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#if CONFIG_MULTITHREAD
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static int get_cpu_count()
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{
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int core_count = 16;
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#if HAVE_UNISTD_H && !defined(__OS2__)
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#if defined(_SC_NPROCESSORS_ONLN)
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core_count = sysconf(_SC_NPROCESSORS_ONLN);
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#elif defined(_SC_NPROC_ONLN)
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core_count = sysconf(_SC_NPROC_ONLN);
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#endif
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#elif defined(_WIN32)
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{
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PGNSI pGNSI;
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SYSTEM_INFO sysinfo;
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/* Call GetNativeSystemInfo if supported or
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* GetSystemInfo otherwise. */
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pGNSI = (PGNSI) GetProcAddress(
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GetModuleHandle(TEXT("kernel32.dll")), "GetNativeSystemInfo");
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if (pGNSI != NULL)
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pGNSI(&sysinfo);
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else
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GetSystemInfo(&sysinfo);
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core_count = sysinfo.dwNumberOfProcessors;
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}
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#elif defined(__OS2__)
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{
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ULONG proc_id;
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ULONG status;
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core_count = 0;
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for (proc_id = 1; ; proc_id++)
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{
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if (DosGetProcessorStatus(proc_id, &status))
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break;
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if (status == PROC_ONLINE)
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core_count++;
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}
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}
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#else
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/* other platforms */
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#endif
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return core_count > 0 ? core_count : 1;
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}
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#endif
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void vp8_clear_system_state_c() {};
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void vp8_machine_specific_config(VP8_COMMON *ctx)
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{
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#if CONFIG_MULTITHREAD
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ctx->processor_core_count = get_cpu_count();
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#endif /* CONFIG_MULTITHREAD */
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#if ARCH_ARM
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ctx->cpu_caps = arm_cpu_caps();
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#elif ARCH_X86 || ARCH_X86_64
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ctx->cpu_caps = x86_simd_caps();
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#endif
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}
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