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[Perf] (MG_Backend/DirectVulkan): raw-ptr in ResolveSamplerDescriptor drops the per-draw SharedPtr refcount on the sampler descriptor path

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swung0x48
2026-07-12 22:48:05 -04:00
parent 24cf1e3a7f
commit b0076af9bd
1 changed files with 7 additions and 8 deletions
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MobileGL/MG_Backend/DirectVulkan/Renderer/UniformManager.cpp
+7 -8
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@@ -206,21 +206,20 @@ namespace MobileGL::MG_Backend::DirectVulkan {
MOBILEGL_ASSERT(m_samplerManager != nullptr, "ResolveSamplerDescriptor: sampler manager is null");
MOBILEGL_ASSERT(binding < programObj.samplerNameByBinding.size(),
"ResolveSamplerDescriptor: sampler binding %u name lookup out of range", binding);
SharedPtr<MG_State::GLState::ITextureObject> texture;
const Bool resolvedTexture = ResolveSamplerTexture(program, programObj, binding, texture);
if (!resolvedTexture) {
MGLOG_E("ResolveSamplerDescriptor: failed to resolve sampler texture for binding %u ('%s')", binding,
programObj.samplerNameByBinding[binding].c_str());
return false;
}
// Raw-pointer resolve to skip the SharedPtr atomic refcount churn: the bound texture stays
// alive through the draw via GL binding state. Only the fallback path needs a SharedPtr to
// keep the fallback texture alive for the rest of this call.
MG_State::GLState::ITextureObject* texture = ResolveSamplerTextureRaw(program, programObj, binding);
const Int location = programObj.samplerUniformLocationByBinding[binding];
const Int unit = ResolveSamplerUnitIndex(program, location, binding);
auto& textureUnit = MG_State::pGLContext->GetTextureUnitObject(unit);
const auto samplerOverride = textureUnit.GetSamplerObject();
const auto preferredTarget = programObj.samplerTextureTargetByBinding[binding];
SharedPtr<MG_State::GLState::ITextureObject> fallbackHolder;
if (texture == nullptr) {
texture = GetFallbackTexture(preferredTarget);
fallbackHolder = GetFallbackTexture(preferredTarget);
texture = fallbackHolder.get();
MOBILEGL_ASSERT(texture != nullptr,
"ResolveSamplerDescriptor: no fallback texture available for binding=%u location=%d unit=%d target=%d",
binding, location, unit, static_cast<Int>(preferredTarget));