diff options
Diffstat (limited to 'vp8/common/generic/systemdependent.c')
-rw-r--r-- | vp8/common/generic/systemdependent.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/vp8/common/generic/systemdependent.c b/vp8/common/generic/systemdependent.c index fea6dcd23..c7fbb3e09 100644 --- a/vp8/common/generic/systemdependent.c +++ b/vp8/common/generic/systemdependent.c @@ -17,9 +17,54 @@ #include "vp8/common/idct.h" #include "vp8/common/onyxc_int.h" +#if CONFIG_MULTITHREAD +#if HAVE_UNISTD_H +#include <unistd.h> +#elif defined(_WIN32) +#include <windows.h> +typedef void (WINAPI *PGNSI)(LPSYSTEM_INFO); +#endif +#endif + extern void vp8_arch_x86_common_init(VP8_COMMON *ctx); extern void vp8_arch_arm_common_init(VP8_COMMON *ctx); +#if CONFIG_MULTITHREAD +static int get_cpu_count() +{ + int core_count = 16; + +#if HAVE_UNISTD_H +#if defined(_SC_NPROCESSORS_ONLN) + core_count = sysconf(_SC_NPROCESSORS_ONLN); +#elif defined(_SC_NPROC_ONLN) + core_count = sysconf(_SC_NPROC_ONLN); +#endif +#elif defined(_WIN32) + { + 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); + + core_count = sysinfo.dwNumberOfProcessors; + } +#else + /* other platforms */ +#endif + + return core_count > 0 ? core_count : 1; +} +#endif + void vp8_machine_specific_config(VP8_COMMON *ctx) { #if CONFIG_RUNTIME_CPU_DETECT @@ -98,4 +143,7 @@ void vp8_machine_specific_config(VP8_COMMON *ctx) #endif +#if CONFIG_MULTITHREAD + ctx->processor_core_count = get_cpu_count(); +#endif /* CONFIG_MULTITHREAD */ } |