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VideoBackends: Support a different number of threads for precompiling

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At runtime, we only really want a single shader compiler thread.
However, for initial boots, we can use a higher number to speed things
up.
This commit is contained in:
Stenzek
2017-07-27 13:15:38 +10:00
parent e17efb1d8d
commit c8f31656cb
14 changed files with 81 additions and 27 deletions
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18
Source/Core/VideoCommon/VideoConfig.cpp
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@ -98,6 +98,7 @@ void VideoConfig::Refresh()
bDisableSpecializedShaders = Config::Get(Config::GFX_DISABLE_SPECIALIZED_SHADERS);
bPrecompileUberShaders = Config::Get(Config::GFX_PRECOMPILE_UBER_SHADERS);
iShaderCompilerThreads = Config::Get(Config::GFX_SHADER_COMPILER_THREADS);
iShaderPrecompilerThreads = Config::Get(Config::GFX_SHADER_PRECOMPILER_THREADS);
bForceVertexUberShaders = Config::Get(Config::GFX_FORCE_VERTEX_UBER_SHADERS);
bForcePixelUberShaders = Config::Get(Config::GFX_FORCE_PIXEL_UBER_SHADERS);
@ -196,13 +197,26 @@ bool VideoConfig::IsVSync()
return bVSync && !Core::GetIsThrottlerTempDisabled();
}
static u32 GetNumAutoShaderCompilerThreads()
{
// Automatic number. We use clamp(cpus - 3, 1, 4).
return static_cast<u32>(std::min(std::max(cpu_info.num_cores - 3, 1), 4));
}
u32 VideoConfig::GetShaderCompilerThreads() const
{
if (iShaderCompilerThreads >= 0)
return static_cast<u32>(iShaderCompilerThreads);
else
return GetNumAutoShaderCompilerThreads();
}
// Automatic number. We use clamp(cpus - 3, 1, 4).
return static_cast<u32>(std::min(std::max(cpu_info.num_cores - 3, 1), 4));
u32 VideoConfig::GetShaderPrecompilerThreads() const
{
if (iShaderPrecompilerThreads >= 0)
return static_cast<u32>(iShaderPrecompilerThreads);
else
return GetNumAutoShaderCompilerThreads();
}
bool VideoConfig::CanUseUberShaders() const