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Add SSE42 and AVX detect

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BUG=none
TEST=libyuvTest.TestCpuHas
Review URL: https://webrtc-codereview.appspot.com/607006

git-svn-id: http://libyuv.googlecode.com/svn/trunk@271 16f28f9a-4ce2-e073-06de-1de4eb20be90
This commit is contained in:
fbarchard@google.com 2012-05-30 03:02:52 +00:00
parent 221e602f8a
commit 4ae6b46ce1
5 changed files with 29 additions and 19 deletions
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2
README.chromium
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@ -1,6 +1,6 @@
Name: libyuv
URL: http://code.google.com/p/libyuv/
Version: 270
Version: 271
License: BSD
License File: LICENSE

20
include/libyuv/cpu_id.h
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@ -16,18 +16,20 @@ namespace libyuv {
extern "C" {
#endif
// These flags are only valid on x86 processors
static const int kCpuHasX86 = 1;
static const int kCpuHasSSE2 = 2;
static const int kCpuHasSSSE3 = 4;
static const int kCpuHasSSE41 = 8;
// Internal flag to indicate cpuid is initialized.
static const int kCpuInitialized = 1;
// These flags are only valid on ARM processors
static const int kCpuHasARM = 16;
static const int kCpuHasNEON = 32;
static const int kCpuHasARM = 2;
static const int kCpuHasNEON = 4;
// Internal flag to indicate cpuid is initialized.
static const int kCpuInitialized = 64;
// These flags are only valid on x86 processors
static const int kCpuHasX86 = 8;
static const int kCpuHasSSE2 = 16;
static const int kCpuHasSSSE3 = 32;
static const int kCpuHasSSE41 = 64;
static const int kCpuHasSSE42 = 128;
static const int kCpuHasAVX = 256;
// Detect CPU has SSE2 etc.
// Test_flag parameter should be one of kCpuHas constants above.

2
include/libyuv/version.h
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@ -11,7 +11,7 @@
#ifndef INCLUDE_LIBYUV_VERSION_H_
#define INCLUDE_LIBYUV_VERSION_H_
#define LIBYUV_VERSION 270
#define LIBYUV_VERSION 271
#endif // INCLUDE_LIBYUV_VERSION_H_

8
source/cpu_id.cc
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@ -84,9 +84,11 @@ int InitCpuFlags() {
#ifdef CPU_X86
int cpu_info[4];
__cpuid(cpu_info, 1);
cpu_info_ = (cpu_info[3] & 0x04000000 ? kCpuHasSSE2 : 0) |
(cpu_info[2] & 0x00000200 ? kCpuHasSSSE3 : 0) |
(cpu_info[2] & 0x00080000 ? kCpuHasSSE41 : 0) |
cpu_info_ = ((cpu_info[3] & 0x04000000) ? kCpuHasSSE2 : 0) |
((cpu_info[2] & 0x00000200) ? kCpuHasSSSE3 : 0) |
((cpu_info[2] & 0x00080000) ? kCpuHasSSE41 : 0) |
((cpu_info[2] & 0x00100000) ? kCpuHasSSE42 : 0) |
(((cpu_info[2] & 0x18000000) == 0x18000000) ? kCpuHasAVX : 0) |
kCpuInitialized | kCpuHasX86;
// environment variable overrides for testing.

16
unit_test/cpu_test.cc
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@ -19,10 +19,16 @@
namespace libyuv {
TEST_F(libyuvTest, TestVersion) {
EXPECT_GE(LIBYUV_VERSION, 169);
EXPECT_GE(LIBYUV_VERSION, 169); // 169 is first version to support version.
}
TEST_F(libyuvTest, TestCpuHas) {
int cpu_flags = TestCpuFlag(~kCpuInitialized);
printf("Cpu Flags %x\n", cpu_flags);
int has_arm = TestCpuFlag(kCpuHasARM);
printf("Has ARM %d\n", has_arm);
int has_neon = TestCpuFlag(kCpuHasNEON);
printf("Has NEON %d\n", has_neon);
int has_x86 = TestCpuFlag(kCpuHasX86);
printf("Has X86 %d\n", has_x86);
int has_sse2 = TestCpuFlag(kCpuHasSSE2);
@ -31,10 +37,10 @@ TEST_F(libyuvTest, TestCpuHas) {
printf("Has SSSE3 %d\n", has_ssse3);
int has_sse41 = TestCpuFlag(kCpuHasSSE41);
printf("Has SSE4.1 %d\n", has_sse41);
int has_arm = TestCpuFlag(kCpuHasARM);
printf("Has ARM %d\n", has_arm);
int has_neon = TestCpuFlag(kCpuHasNEON);
printf("Has NEON %d\n", has_neon);
int has_sse42 = TestCpuFlag(kCpuHasSSE42);
printf("Has SSE4.2 %d\n", has_sse42);
int has_avx = TestCpuFlag(kCpuHasAVX);
printf("Has AVX %d\n", has_avx);
}
#if defined(__i386__) || defined(__x86_64__) || \