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Diffstat (limited to 'src/main/jni/libyuv/source/cpu_id.cc')
-rw-r--r--src/main/jni/libyuv/source/cpu_id.cc293
1 files changed, 0 insertions, 293 deletions
diff --git a/src/main/jni/libyuv/source/cpu_id.cc b/src/main/jni/libyuv/source/cpu_id.cc
deleted file mode 100644
index deb4c4465..000000000
--- a/src/main/jni/libyuv/source/cpu_id.cc
+++ /dev/null
@@ -1,293 +0,0 @@
-/*
- * Copyright 2011 The LibYuv 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 "libyuv/cpu_id.h"
-
-#if defined(_MSC_VER) && !defined(__clang__)
-#include <intrin.h> // For __cpuidex()
-#endif
-#if !defined(__pnacl__) && !defined(__CLR_VER) && \
- !defined(__native_client__) && \
- defined(_MSC_VER) && (_MSC_FULL_VER >= 160040219)
-#include <immintrin.h> // For _xgetbv()
-#endif
-
-#if !defined(__native_client__)
-#include <stdlib.h> // For getenv()
-#endif
-
-// For ArmCpuCaps() but unittested on all platforms
-#include <stdio.h>
-#include <string.h>
-
-#include "libyuv/basic_types.h" // For CPU_X86
-
-#ifdef __cplusplus
-namespace libyuv {
-extern "C" {
-#endif
-
-// For functions that use the stack and have runtime checks for overflow,
-// use SAFEBUFFERS to avoid additional check.
-#if defined(_MSC_VER) && (_MSC_FULL_VER >= 160040219)
-#define SAFEBUFFERS __declspec(safebuffers)
-#else
-#define SAFEBUFFERS
-#endif
-
-// Low level cpuid for X86. Returns zeros on other CPUs.
-#if !defined(__pnacl__) && !defined(__CLR_VER) && \
- (defined(_M_IX86) || defined(_M_X64) || \
- defined(__i386__) || defined(__x86_64__))
-LIBYUV_API
-void CpuId(uint32 info_eax, uint32 info_ecx, uint32* cpu_info) {
-#if defined(_MSC_VER) && !defined(__clang__)
-#if (_MSC_FULL_VER >= 160040219)
- __cpuidex((int*)(cpu_info), info_eax, info_ecx);
-#elif defined(_M_IX86)
- __asm {
- mov eax, info_eax
- mov ecx, info_ecx
- mov edi, cpu_info
- cpuid
- mov [edi], eax
- mov [edi + 4], ebx
- mov [edi + 8], ecx
- mov [edi + 12], edx
- }
-#else
- if (info_ecx == 0) {
- __cpuid((int*)(cpu_info), info_eax);
- } else {
- cpu_info[3] = cpu_info[2] = cpu_info[1] = cpu_info[0] = 0;
- }
-#endif
-#else // defined(_MSC_VER)
- uint32 info_ebx, info_edx;
- asm volatile ( // NOLINT
-#if defined( __i386__) && defined(__PIC__)
- // Preserve ebx for fpic 32 bit.
- "mov %%ebx, %%edi \n"
- "cpuid \n"
- "xchg %%edi, %%ebx \n"
- : "=D" (info_ebx),
-#else
- "cpuid \n"
- : "=b" (info_ebx),
-#endif // defined( __i386__) && defined(__PIC__)
- "+a" (info_eax), "+c" (info_ecx), "=d" (info_edx));
- cpu_info[0] = info_eax;
- cpu_info[1] = info_ebx;
- cpu_info[2] = info_ecx;
- cpu_info[3] = info_edx;
-#endif // defined(_MSC_VER)
-}
-
-#if !defined(__native_client__)
-#define HAS_XGETBV
-// X86 CPUs have xgetbv to detect OS saves high parts of ymm registers.
-int TestOsSaveYmm() {
- uint32 xcr0 = 0u;
-#if defined(_MSC_VER) && (_MSC_FULL_VER >= 160040219)
- xcr0 = (uint32)(_xgetbv(0)); // VS2010 SP1 required.
-#elif defined(_M_IX86) && defined(_MSC_VER)
- __asm {
- xor ecx, ecx // xcr 0
- _asm _emit 0x0f _asm _emit 0x01 _asm _emit 0xd0 // For VS2010 and earlier.
- mov xcr0, eax
- }
-#elif defined(__i386__) || defined(__x86_64__)
- asm(".byte 0x0f, 0x01, 0xd0" : "=a" (xcr0) : "c" (0) : "%edx");
-#endif // defined(_MSC_VER)
- return((xcr0 & 6) == 6); // Is ymm saved?
-}
-#endif // !defined(__native_client__)
-#else
-LIBYUV_API
-void CpuId(uint32 eax, uint32 ecx, uint32* cpu_info) {
- cpu_info[0] = cpu_info[1] = cpu_info[2] = cpu_info[3] = 0;
-}
-#endif
-
-// based on libvpx arm_cpudetect.c
-// For Arm, but public to allow testing on any CPU
-LIBYUV_API SAFEBUFFERS
-int ArmCpuCaps(const char* cpuinfo_name) {
- char cpuinfo_line[512];
- FILE* f = fopen(cpuinfo_name, "r");
- if (!f) {
- // Assume Neon if /proc/cpuinfo is unavailable.
- // This will occur for Chrome sandbox for Pepper or Render process.
- return kCpuHasNEON;
- }
- while (fgets(cpuinfo_line, sizeof(cpuinfo_line) - 1, f)) {
- if (memcmp(cpuinfo_line, "Features", 8) == 0) {
- char* p = strstr(cpuinfo_line, " neon");
- if (p && (p[5] == ' ' || p[5] == '\n')) {
- fclose(f);
- return kCpuHasNEON;
- }
- }
- }
- fclose(f);
- return 0;
-}
-
-#if defined(__mips__) && defined(__linux__)
-static int MipsCpuCaps(const char* search_string) {
- char cpuinfo_line[512];
- const char* file_name = "/proc/cpuinfo";
- FILE* f = fopen(file_name, "r");
- if (!f) {
- // Assume DSP if /proc/cpuinfo is unavailable.
- // This will occur for Chrome sandbox for Pepper or Render process.
- return kCpuHasMIPS_DSP;
- }
- while (fgets(cpuinfo_line, sizeof(cpuinfo_line) - 1, f) != NULL) {
- if (strstr(cpuinfo_line, search_string) != NULL) {
- fclose(f);
- return kCpuHasMIPS_DSP;
- }
- }
- fclose(f);
- return 0;
-}
-#endif
-
-// CPU detect function for SIMD instruction sets.
-LIBYUV_API
-int cpu_info_ = kCpuInit; // cpu_info is not initialized yet.
-
-// Test environment variable for disabling CPU features. Any non-zero value
-// to disable. Zero ignored to make it easy to set the variable on/off.
-#if !defined(__native_client__) && !defined(_M_ARM)
-
-static LIBYUV_BOOL TestEnv(const char* name) {
- const char* var = getenv(name);
- if (var) {
- if (var[0] != '0') {
- return LIBYUV_TRUE;
- }
- }
- return LIBYUV_FALSE;
-}
-#else // nacl does not support getenv().
-static LIBYUV_BOOL TestEnv(const char*) {
- return LIBYUV_FALSE;
-}
-#endif
-
-LIBYUV_API SAFEBUFFERS
-int InitCpuFlags(void) {
-#if !defined(__pnacl__) && !defined(__CLR_VER) && defined(CPU_X86)
-
- uint32 cpu_info0[4] = { 0, 0, 0, 0 };
- uint32 cpu_info1[4] = { 0, 0, 0, 0 };
- uint32 cpu_info7[4] = { 0, 0, 0, 0 };
- CpuId(0, 0, cpu_info0);
- CpuId(1, 0, cpu_info1);
- if (cpu_info0[0] >= 7) {
- CpuId(7, 0, cpu_info7);
- }
- cpu_info_ = ((cpu_info1[3] & 0x04000000) ? kCpuHasSSE2 : 0) |
- ((cpu_info1[2] & 0x00000200) ? kCpuHasSSSE3 : 0) |
- ((cpu_info1[2] & 0x00080000) ? kCpuHasSSE41 : 0) |
- ((cpu_info1[2] & 0x00100000) ? kCpuHasSSE42 : 0) |
- ((cpu_info7[1] & 0x00000200) ? kCpuHasERMS : 0) |
- ((cpu_info1[2] & 0x00001000) ? kCpuHasFMA3 : 0) |
- kCpuHasX86;
-
-#ifdef HAS_XGETBV
- if ((cpu_info1[2] & 0x18000000) == 0x18000000 && // AVX and OSSave
- TestOsSaveYmm()) { // Saves YMM.
- cpu_info_ |= ((cpu_info7[1] & 0x00000020) ? kCpuHasAVX2 : 0) |
- kCpuHasAVX;
- }
-#endif
- // Environment variable overrides for testing.
- if (TestEnv("LIBYUV_DISABLE_X86")) {
- cpu_info_ &= ~kCpuHasX86;
- }
- if (TestEnv("LIBYUV_DISABLE_SSE2")) {
- cpu_info_ &= ~kCpuHasSSE2;
- }
- if (TestEnv("LIBYUV_DISABLE_SSSE3")) {
- cpu_info_ &= ~kCpuHasSSSE3;
- }
- if (TestEnv("LIBYUV_DISABLE_SSE41")) {
- cpu_info_ &= ~kCpuHasSSE41;
- }
- if (TestEnv("LIBYUV_DISABLE_SSE42")) {
- cpu_info_ &= ~kCpuHasSSE42;
- }
- if (TestEnv("LIBYUV_DISABLE_AVX")) {
- cpu_info_ &= ~kCpuHasAVX;
- }
- if (TestEnv("LIBYUV_DISABLE_AVX2")) {
- cpu_info_ &= ~kCpuHasAVX2;
- }
- if (TestEnv("LIBYUV_DISABLE_ERMS")) {
- cpu_info_ &= ~kCpuHasERMS;
- }
- if (TestEnv("LIBYUV_DISABLE_FMA3")) {
- cpu_info_ &= ~kCpuHasFMA3;
- }
-#elif defined(__mips__) && defined(__linux__)
- // Linux mips parse text file for dsp detect.
- cpu_info_ = MipsCpuCaps("dsp"); // set kCpuHasMIPS_DSP.
-#if defined(__mips_dspr2)
- cpu_info_ |= kCpuHasMIPS_DSPR2;
-#endif
- cpu_info_ |= kCpuHasMIPS;
-
- if (getenv("LIBYUV_DISABLE_MIPS")) {
- cpu_info_ &= ~kCpuHasMIPS;
- }
- if (getenv("LIBYUV_DISABLE_MIPS_DSP")) {
- cpu_info_ &= ~kCpuHasMIPS_DSP;
- }
- if (getenv("LIBYUV_DISABLE_MIPS_DSPR2")) {
- cpu_info_ &= ~kCpuHasMIPS_DSPR2;
- }
-#elif defined(__arm__) || defined(__aarch64__)
-// gcc -mfpu=neon defines __ARM_NEON__
-// __ARM_NEON__ generates code that requires Neon. NaCL also requires Neon.
-// For Linux, /proc/cpuinfo can be tested but without that assume Neon.
-#if defined(__ARM_NEON__) || defined(__native_client__) || !defined(__linux__)
- cpu_info_ = kCpuHasNEON;
-// For aarch64(arm64), /proc/cpuinfo's feature is not complete, e.g. no neon
-// flag in it.
-// So for aarch64, neon enabling is hard coded here.
-#elif defined(__aarch64__)
- cpu_info_ = kCpuHasNEON;
-#else
- // Linux arm parse text file for neon detect.
- cpu_info_ = ArmCpuCaps("/proc/cpuinfo");
-#endif
- cpu_info_ |= kCpuHasARM;
- if (TestEnv("LIBYUV_DISABLE_NEON")) {
- cpu_info_ &= ~kCpuHasNEON;
- }
-#endif // __arm__
- if (TestEnv("LIBYUV_DISABLE_ASM")) {
- cpu_info_ = 0;
- }
- return cpu_info_;
-}
-
-LIBYUV_API
-void MaskCpuFlags(int enable_flags) {
- cpu_info_ = InitCpuFlags() & enable_flags;
-}
-
-#ifdef __cplusplus
-} // extern "C"
-} // namespace libyuv
-#endif
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