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citra_meta: Use integrated SSE4.2 detection method (#1753)

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RedBlackAka 2026-02-20 21:34:21 +01:00 committed by GitHub
parent 4010f4bc1f
commit 9628300ff5
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1 changed files with 5 additions and 30 deletions
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35
src/citra_meta/main.cpp
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@ -26,43 +26,18 @@ __declspec(dllexport) unsigned long NvOptimusEnablement = 0x00000001;
#endif
#if CITRA_HAS_SSE42
#if defined(_WIN32)
#include "common/x64/cpu_detect.h"
#ifdef _WIN32
#include <windows.h>
#if defined(_MSC_VER)
#include <intrin.h>
#else
#include <cpuid.h>
#endif // _MSC_VER
#else
#include <cpuid.h>
#endif // _WIN32
static bool CpuSupportsSSE42() {
uint32_t ecx;
#if defined(_MSC_VER)
int cpu_info[4];
__cpuid(cpu_info, 1);
ecx = static_cast<uint32_t>(cpu_info[2]);
#elif defined(__GNUC__) || defined(__clang__)
uint32_t eax, ebx, edx;
if (!__get_cpuid(1, &eax, &ebx, &ecx, &edx)) {
return false;
}
#else
#error "Unsupported compiler"
#endif
// Bit 20 of ECX indicates SSE4.2
return (ecx & (1 << 20)) != 0;
}
static bool CheckAndReportSSE42() {
if (!CpuSupportsSSE42()) {
const auto& caps = Common::GetCPUCaps();
if (!caps.sse4_2) {
const std::string error_msg =
"This application requires a CPU with SSE4.2 support or higher.\nTo run on unsupported "
"systems, recompile the application with the ENABLE_SSE42 option disabled.";
#if defined(_WIN32)
#ifdef _WIN32
MessageBoxA(nullptr, error_msg.c_str(), "Incompatible CPU", MB_OK | MB_ICONERROR);
#endif
std::cerr << "Error: " << error_msg << std::endl;