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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkOnce.h"
#include "SkOpts.h"
#if defined(SK_CPU_X86)
#if defined(SK_BUILD_FOR_WIN32)
#include <intrin.h>
static void cpuid(uint32_t abcd[4]) { __cpuid((int*)abcd, 1); }
#else
#include <cpuid.h>
static void cpuid(uint32_t abcd[4]) { __get_cpuid(1, abcd+0, abcd+1, abcd+2, abcd+3); }
#endif
#elif !defined(SK_ARM_HAS_NEON) && defined(SK_CPU_ARM32) && defined(SK_BUILD_FOR_ANDROID)
#include <cpu-features.h>
#endif
namespace SkOpts {
// (Define default function pointer values here...)
// Each Init_foo() is defined in src/opts/SkOpts_foo.cpp.
void Init_sse2();
void Init_ssse3();
void Init_sse41();
void Init_neon();
//TODO: _dsp2, _armv7, _armv8, _x86, _x86_64, _sse42, _avx, avx2, ... ?
static void init() {
#if defined(SK_CPU_X86)
uint32_t abcd[] = {0,0,0,0};
cpuid(abcd);
if (abcd[3] & (1<<26)) { Init_sse2(); }
if (abcd[2] & (1<< 9)) { Init_ssse3(); }
if (abcd[2] & (1<<19)) { Init_sse41(); }
#elif defined(SK_ARM_HAS_NEON)
Init_neon();
#elif defined(SK_CPU_ARM32) && defined(SK_BUILD_FOR_ANDROID)
if (android_getCpuFeatures() & ANDROID_CPU_ARM_FEATURE_NEON) { Init_neon(); }
#endif
}
SK_DECLARE_STATIC_ONCE(gInitOnce);
void Init() { SkOnce(&gInitOnce, init); }
#if SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
static struct AutoInit {
AutoInit() { Init(); }
} gAutoInit;
#endif
}
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