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Common: SSE2 backsupport for vector classes

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shuffle8() sucks, the rest aren't _too_ bad.
This commit is contained in:
Stenzek
2024-09-22 17:03:58 +10:00
parent e1c876671a
commit c439de6364
5 changed files with 446 additions and 64 deletions
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2
src/core/mdec.cpp
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@ -659,7 +659,7 @@ void MDEC::CopyOutBlock(void* param, TickCount ticks, TickCount ticks_late)
case DataOutputDepth_24Bit:
{
#ifndef CPU_ARCH_SIMD
#ifndef GSVECTOR_HAS_FAST_INT_SHUFFLE8
// pack tightly
u32 index = 0;
u32 state = 0;

22
src/core/system.cpp
View File

@ -354,12 +354,22 @@ bool System::Internal::PerformEarlyHardwareChecks(Error* error)
cpuinfo_initialize();
#ifdef CPU_ARCH_X64
#ifdef CPU_ARCH_SSE41
if (!cpuinfo_has_x86_sse4_1())
{
Error::SetStringFmt(error, "Your CPU does not support the SSE4.1 instruction set.\n"
"A CPU from 2008 or newer is required to run DuckStation.");
Error::SetStringFmt(error, "Your CPU does not support the SSE4.1 instruction set, which is required for this "
"version of DuckStation.\nPlease download and switch to the legacy SSE2 version.\nYou "
"can download this from https://www.duckstation.org/ under \"Other Platforms\".");
return false;
}
#else
if (cpuinfo_has_x86_sse4_1())
{
Error::SetStringFmt(error, "You are running the legacy SSE2 DuckStation executable on a CPU that supports the "
"SSE4.1 instruction set.\nPlease download and switch the regular, non-SSE2 "
"version.\nYou can download this from https://www.duckstation.org/.");
}
#endif
#endif
// Check page size. If it doesn't match, it is a fatal error.
@ -425,7 +435,13 @@ void System::CheckCacheLineSize()
void System::LogStartupInformation()
{
INFO_LOG("DuckStation Version {} [{}]", g_scm_tag_str, g_scm_branch_str);
#if !defined(CPU_ARCH_X64) || defined(CPU_ARCH_SSE41)
const std::string_view suffix = {};
#else
const std::string_view suffix = " [Legacy SSE2]";
#endif
INFO_LOG("DuckStation for {} ({}){}", TARGET_OS_STR, CPU_ARCH_STR, suffix);
INFO_LOG("Version: {} [{}]", g_scm_tag_str, g_scm_branch_str);
INFO_LOG("SCM Timestamp: {}", g_scm_date_str);
INFO_LOG("Build Timestamp: {} {}", __DATE__, __TIME__);
if (const cpuinfo_package* package = cpuinfo_get_package(0)) [[likely]]