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chore: add cursed calculation for techflag 200 in iw4

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Jan Laupetin
2026-03-14 13:35:42 +01:00
parent 629564073c
commit 08a869f8c3
1 changed files with 39 additions and 0 deletions
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39
src/ObjCompiling/Techset/TechniqueCompiler.cpp.template
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@@ -212,6 +212,42 @@ namespace
pass.customSamplerFlags = static_cast<decltype(MaterialPass::customSamplerFlags)>(commonPass.m_sampler_flags); pass.customSamplerFlags = static_cast<decltype(MaterialPass::customSamplerFlags)>(commonPass.m_sampler_flags);
} }
#ifdef FEATURE_IW4
// Not sure if this is actually how this is calculated.
// It produces identical results at least though.
constexpr MaterialConstantSource ALLOWED_PIXEL_CONSTANTS_FOR_FLAG_200[]{
CONST_SRC_CODE_RENDER_TARGET_SIZE,
CONST_SRC_CODE_VIEWPORT_DIMENSIONS,
};
bool ShouldApplyFlag200(const MaterialTechnique& technique)
{
for (auto passIndex = 0u; passIndex < technique.passCount; passIndex++)
{
const auto& pass = technique.passArray[passIndex];
if (!pass.args)
continue;
const unsigned argCount = pass.perPrimArgCount + pass.perObjArgCount + pass.stableArgCount;
for (auto argIndex = 0u; argIndex < argCount; argIndex++)
{
const auto& arg = pass.args[argIndex];
if (arg.type == MTL_ARG_MATERIAL_VERTEX_CONST || arg.type == MTL_ARG_MATERIAL_PIXEL_SAMPLER || arg.type == MTL_ARG_MATERIAL_PIXEL_CONST)
return false;
if (arg.type == MTL_ARG_CODE_PIXEL_CONST)
{
const auto foundAllowedConstant = std::ranges::find(ALLOWED_PIXEL_CONSTANTS_FOR_FLAG_200, arg.u.codeConst.index);
if (foundAllowedConstant == std::end(ALLOWED_PIXEL_CONSTANTS_FOR_FLAG_200))
return false;
}
}
}
return true;
}
#endif
bool AnyDeclHasOptionalSource(const MaterialTechnique& technique, AssetCreationContext& context) bool AnyDeclHasOptionalSource(const MaterialTechnique& technique, AssetCreationContext& context)
{ {
for (auto passIndex = 0u; passIndex < technique.passCount; passIndex++) for (auto passIndex = 0u; passIndex < technique.passCount; passIndex++)
@@ -254,6 +290,9 @@ namespace
if (technique.flags & MTL_TECHFLAG_USES_FLOATZ && lowerTechniqueName.starts_with("distortion_")) if (technique.flags & MTL_TECHFLAG_USES_FLOATZ && lowerTechniqueName.starts_with("distortion_"))
technique.flags = (technique.flags & ~MTL_TECHFLAG_USES_FLOATZ) | MTL_TECHFLAG_USES_DISTORTION_FLOATZ; technique.flags = (technique.flags & ~MTL_TECHFLAG_USES_FLOATZ) | MTL_TECHFLAG_USES_DISTORTION_FLOATZ;
if (ShouldApplyFlag200(technique))
technique.flags |= TECHNIQUE_FLAG_200;
#elif defined(FEATURE_T6) #elif defined(FEATURE_T6)
// Not a particularly cool way to do this but... // Not a particularly cool way to do this but...
// the game actually does this :shrug: // the game actually does this :shrug: