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[Perf] (DirectVulkan): skip pending-clear probes through a lock-free empty check

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swung0x48
2026-07-30 07:02:03 -04:00
parent 76b8957b99
commit 2d4d6e9cfb
2 changed files with 28 additions and 0 deletions
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MobileGL/MG_Backend/DirectVulkan/Renderer/VkClearManager.cpp
+21
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@@ -93,6 +93,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
const std::lock_guard<std::mutex> lock(m_mutex);
m_pendingClears.clear();
m_aliveObjects.clear();
m_pendingCount.store(static_cast<Uint32>(m_pendingClears.size()), std::memory_order_relaxed);
}
TextureIdentity VkClearManager::MakeTextureIdentity(MG_State::GLState::ITextureObject* texture) {
@@ -127,6 +128,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
m_pendingClears.erase(key);
}
m_aliveObjects.erase(identity);
m_pendingCount.store(static_cast<Uint32>(m_pendingClears.size()), std::memory_order_relaxed);
}
Bool VkClearManager::LockTextureIdentityLocked(const TextureIdentity& identity,
@@ -221,6 +223,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
m_aliveObjects[MakeTextureIdentity(texture.get())] = texture;
auto& pending = m_pendingClears[key];
MergeClearPayload(pending, clearPayload);
m_pendingCount.store(static_cast<Uint32>(m_pendingClears.size()), std::memory_order_relaxed);
}
void VkClearManager::QueueClear(const ClearAttachmentPayload& clearPayload,
@@ -238,6 +241,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
m_aliveObjects[MakeTextureIdentity(texture.get())] = texture;
auto& pending = m_pendingClears[key];
MergeClearPayload(pending, clearPayload);
m_pendingCount.store(static_cast<Uint32>(m_pendingClears.size()), std::memory_order_relaxed);
}
Bool VkClearManager::HasPendingClear(MG_State::GLState::ITextureObject* texture) {
@@ -245,6 +249,10 @@ namespace MobileGL::MG_Backend::DirectVulkan {
return false;
}
if (m_pendingCount.load(std::memory_order_relaxed) == 0) {
return false; // per-draw hot path: nothing pending anywhere
}
const Uint64 lifetimeId = texture->GetLifetimeId();
const std::lock_guard<std::mutex> lock(m_mutex);
for (auto it = m_pendingClears.begin(); it != m_pendingClears.end(); ++it) {
@@ -260,6 +268,9 @@ namespace MobileGL::MG_Backend::DirectVulkan {
if (key.texture == nullptr) {
return false;
}
if (m_pendingCount.load(std::memory_order_relaxed) == 0) {
return false; // per-draw hot path: nothing pending anywhere
}
const std::lock_guard<std::mutex> lock(m_mutex);
if (m_pendingClears.find(key) == m_pendingClears.end()) {
@@ -287,6 +298,9 @@ namespace MobileGL::MG_Backend::DirectVulkan {
if (key.texture == nullptr) {
return false;
}
if (m_pendingCount.load(std::memory_order_relaxed) == 0) {
return false; // per-draw hot path: nothing pending anywhere
}
const std::lock_guard<std::mutex> lock(m_mutex);
if (!LockTextureLocked(key, outTexture)) {
@@ -325,6 +339,9 @@ namespace MobileGL::MG_Backend::DirectVulkan {
if (texture == nullptr) {
return false;
}
if (m_pendingCount.load(std::memory_order_relaxed) == 0) {
return false; // per-draw hot path: nothing pending anywhere
}
const Uint64 lifetimeId = texture->GetLifetimeId();
const std::lock_guard<std::mutex> lock(m_mutex);
@@ -345,6 +362,9 @@ namespace MobileGL::MG_Backend::DirectVulkan {
return;
}
if (m_pendingCount.load(std::memory_order_relaxed) == 0) {
return; // per-draw hot path: nothing pending anywhere
}
const TextureIdentity identity = MakeTextureIdentity(texture);
MGLOG_D("%s: Pop all pending clears for texture %d", __func__, texture->GetExternalIndex());
const std::lock_guard<std::mutex> lock(m_mutex);
@@ -361,6 +381,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
auto it = m_pendingClears.find(key);
if (it != m_pendingClears.end()) {
m_pendingClears.erase(it);
m_pendingCount.store(static_cast<Uint32>(m_pendingClears.size()), std::memory_order_relaxed);
}
}