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GS/DX: Disable IEEE strict maths

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TheLastRar
2026-05-23 16:51:10 +01:00
committed by lightningterror
parent 3a0a9f6705
commit 1bc08722fd
3 changed files with 17 additions and 6 deletions
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bin/resources/shaders/dx11/tfx.fx
+14 -3
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@@ -261,10 +261,21 @@ float manual_lod(float uv_w)
#endif
#if PS_ANISOTROPIC_FILTERING > 1
bool2 nan_or_inf(float2 xy)
{
// FXC (<=SM5.1) may optimise away isnan and isinf.
// DXC (>=SM6.0) will preserve them.
#ifdef __hlsl_dx_compiler
return isinf(xy) | isnan(xy);
#else
return (asuint(xy) & 0x7f800000) == 0x7f800000;
#endif
}
float4 sample_c_af(float2 uv, float uv_w)
{
// HW sampler will reject bad UVs, match that here.
uv = any(isnan(uv) | isinf(uv)) ? float2(0, 0) : uv;
uv = any(nan_or_inf(uv)) ? float2(0, 0) : uv;
// Large floating point values risk NaN/Inf values.
// Above this value floats lose decimal precision, so seems a resonable limit for UVs.
@@ -281,7 +292,7 @@ float4 sample_c_af(float2 uv, float uv_w)
bool d_zero = length(dX) == 0 || length(dY) == 0;
bool d_par = (dX.x * dY.y - dY.x * dX.y) == 0;
bool d_per = dot(dX, dY) == 0;
bool d_inf_nan = any(isinf(dX) | isinf(dY) | isnan(dX) | isnan(dY));
bool d_inf_nan = any(nan_or_inf(dX) | nan_or_inf(dY));
if (!(d_zero || d_par || d_per || d_inf_nan))
{
@@ -305,7 +316,7 @@ float4 sample_c_af(float2 uv, float uv_w)
sqrt(F * (t + p) / (t * (q - t)))
);
d_inf_nan = any(isinf(new_dX) | isinf(new_dY) | isnan(new_dX) | isnan(new_dY));
d_inf_nan = any(nan_or_inf(new_dX) | nan_or_inf(new_dY));
if (!d_inf_nan)
{
dX = new_dX;
pcsx2/GS/Renderers/DX11/D3D.cpp
+2 -2
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@@ -523,8 +523,8 @@ wil::com_ptr_nothrow<ID3DBlob> D3D::CompileShader(D3D::ShaderType type, D3D::Sha
break;
}
static constexpr UINT flags_non_debug = D3DCOMPILE_OPTIMIZATION_LEVEL3 | D3DCOMPILE_IEEE_STRICTNESS;
static constexpr UINT flags_debug = D3DCOMPILE_SKIP_OPTIMIZATION | D3DCOMPILE_DEBUG | D3DCOMPILE_DEBUG_NAME_FOR_SOURCE | D3DCOMPILE_IEEE_STRICTNESS;
static constexpr UINT flags_non_debug = D3DCOMPILE_OPTIMIZATION_LEVEL3;
static constexpr UINT flags_debug = D3DCOMPILE_SKIP_OPTIMIZATION | D3DCOMPILE_DEBUG | D3DCOMPILE_DEBUG_NAME_FOR_SOURCE;
wil::com_ptr_nothrow<ID3DBlob> blob;
wil::com_ptr_nothrow<ID3DBlob> error_blob;
pcsx2/ShaderCacheVersion.h
+1 -1
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@@ -3,4 +3,4 @@
/// Version number for GS and other shaders. Increment whenever any of the contents of the
/// shaders change, to invalidate the cache.
static constexpr u32 SHADER_CACHE_VERSION = 95; // Last changed in PR 14439
static constexpr u32 SHADER_CACHE_VERSION = 96; // Last changed in PR 14479