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[Refactor] (ShaderTranspiler, MG_Backend, MG_Util): gate the subgroup prefix-scan rewrite behind a generic device-quirk registry with GPU vendor detection and MOBILEGL_QUIRK_SUBGROUP_PREFIX_SCAN override, warn on template mismatch, and block ARB/NV subgroup spellings

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swung0x48
2026-07-20 02:36:26 -04:00
parent 293f64b3c2
commit bf7b5755cc
10 changed files with 219 additions and 9 deletions
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MobileGL/ConfigLoader.cpp
+12
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@@ -86,6 +86,17 @@ namespace MobileGL::MG_ConfigLoader {
return it != acceptedEnvVariablesMap->end() && IsTruthyValue(it->second);
}
// Quirk overrides are tri-state: an unset variable keeps device auto-detection, a truthy
// value forces the quirk on, anything else set ("0", "false", "") forces it off.
inline MG_Config::QuirkOverride QueryEnvQuirkOverride(const String& key) {
auto it = acceptedEnvVariablesMap->find(key);
if (it == acceptedEnvVariablesMap->end()) {
return MG_Config::QuirkOverride::Auto;
}
return IsTruthyValue(it->second) ? MG_Config::QuirkOverride::ForceOn
: MG_Config::QuirkOverride::ForceOff;
}
inline Uint32 QueryEnvUint32(const String& key, Uint32 defaultValue, Uint32 minValue, Uint32 maxValue) {
auto it = acceptedEnvVariablesMap->find(key);
if (it == acceptedEnvVariablesMap->end()) {
@@ -123,6 +134,7 @@ namespace MobileGL::MG_ConfigLoader {
features.TraceSkipAutodestroy = QueryEnvFlag("MOBILEGL_TRACE_SKIP_AUTODESTROY");
features.DisableUboRing = QueryEnvFlag("MOBILEGL_DISABLE_UBO_RING");
features.RelaxedSemantics = QueryEnvFlag("MOBILEGL_RELAXED_SEMANTICS");
features.SubgroupPrefixScanQuirk = QueryEnvQuirkOverride("MOBILEGL_QUIRK_SUBGROUP_PREFIX_SCAN");
}
inline void InitBackendType() {