From 7811c03c3b72e7de7d221d24b2b0616cb1cd8207 Mon Sep 17 00:00:00 2001
From: "Unknown W. Brackets" <checkins@unknownbrackets.org>
Date: Fri, 6 Apr 2018 21:36:27 -0700
Subject: [PATCH] Vulkan: Report old allocations when enabled.

---
 Common/Vulkan/VulkanMemory.cpp | 34 ++++++++++++++++++++++++++++++++++
 Common/Vulkan/VulkanMemory.h   |  1 +
 2 files changed, 35 insertions(+)

diff --git a/Common/Vulkan/VulkanMemory.cpp b/Common/Vulkan/VulkanMemory.cpp
index 4df48e5b04..33ed1ac6fa 100644
--- a/Common/Vulkan/VulkanMemory.cpp
+++ b/Common/Vulkan/VulkanMemory.cpp
@@ -433,10 +433,44 @@ bool VulkanDeviceAllocator::AllocateSlab(VkDeviceSize minBytes) {
 	return true;
 }
 
+void VulkanDeviceAllocator::ReportOldUsage() {
+	float now = time_now();
+	static const float OLD_AGE = 10.0f;
+	for (size_t i = 0; i < slabs_.size(); ++i) {
+		const auto &slab = slabs_[i];
+
+		bool hasOldAllocs = false;
+		for (auto it : slab.tags) {
+			const auto info = it.second;
+			float touchedAge = now - info.touched;
+			if (touchedAge >= OLD_AGE) {
+				hasOldAllocs = true;
+				break;
+			}
+		}
+
+		if (hasOldAllocs) {
+			NOTICE_LOG(G3D, "Slab %d usage:", i);
+			for (auto it : slab.tags) {
+				const auto info = it.second;
+
+				float createAge = now - info.created;
+				float touchedAge = now - info.touched;
+				NOTICE_LOG(G3D, "  * %s (created %fs ago, used %fs ago)", info.tag.c_str(), createAge, touchedAge);
+			}
+			NOTICE_LOG(G3D, "");
+		}
+	}
+}
+
 void VulkanDeviceAllocator::Decimate() {
 	assert(!destroyed_);
 	bool foundFree = false;
 
+	if (TRACK_TOUCH) {
+		ReportOldUsage();
+	}
+
 	for (size_t i = 0; i < slabs_.size(); ++i) {
 		// Go backwards.  This way, we keep the largest free slab.
 		// We do this here (instead of the for) since size_t is unsigned.
diff --git a/Common/Vulkan/VulkanMemory.h b/Common/Vulkan/VulkanMemory.h
index e560a2ff10..05d892cd1b 100644
--- a/Common/Vulkan/VulkanMemory.h
+++ b/Common/Vulkan/VulkanMemory.h
@@ -205,6 +205,7 @@ private:
 	void Decimate();
 	void DoTouch(VkDeviceMemory deviceMemory, size_t offset);
 	void ExecuteFree(FreeInfo *userdata);
+	void ReportOldUsage();
 
 	VulkanContext *const vulkan_;
 	std::vector<Slab> slabs_;