Resurrect the Vulkan memory visualizer, but now it's global stats and…

… pushbuffer stats.

Common/GPU/Vulkan/VulkanMemory.cpp

@@ -18,6 +18,9 @@
 // Additionally, Common/Vulkan/* , including this file, are also licensed
 // under the public domain.
 
+#include <set>
+#include <mutex>
+
 #include "Common/Math/math_util.h"
 
 #include "Common/Log.h"
@@ -26,17 +29,41 @@
 
 using namespace PPSSPP_VK;
 
+// Global push buffer tracker for vulkan memory profiling.
+// Don't want to manually dig up all the active push buffers.
+static std::mutex g_pushBufferListMutex;
+static std::set<VulkanPushBuffer *> g_pushBuffers;
+
 VulkanPushBuffer::VulkanPushBuffer(VulkanContext *vulkan, const char *name, size_t size, VkBufferUsageFlags usage, PushBufferType type)
 		: vulkan_(vulkan), name_(name), size_(size), usage_(usage), type_(type) {
+	{
+		std::lock_guard<std::mutex> guard(g_pushBufferListMutex);
+		g_pushBuffers.insert(this);
+	}
+
 	bool res = AddBuffer();
 	_assert_(res);
 }
 
 VulkanPushBuffer::~VulkanPushBuffer() {
+	{
+		std::lock_guard<std::mutex> guard(g_pushBufferListMutex);
+		g_pushBuffers.erase(this);
+	}
+
 	_dbg_assert_(!writePtr_);
 	_assert_(buffers_.empty());
 }
 
+std::vector<VulkanPushBuffer *> VulkanPushBuffer::GetAllActive() {
+	std::vector<VulkanPushBuffer *> buffers;
+	std::lock_guard<std::mutex> guard(g_pushBufferListMutex);
+	for (auto iter : g_pushBuffers) {
+		buffers.push_back(iter);
+	}
+	return buffers;
+}
+
 bool VulkanPushBuffer::AddBuffer() {
 	BufInfo info;
 	VkDevice device = vulkan_->GetDevice();
@@ -122,6 +149,10 @@ size_t VulkanPushBuffer::GetTotalSize() const {
 	return sum;
 }
 
+size_t VulkanPushBuffer::GetTotalCapacity() const {
+	return size_ * buffers_.size();
+}
+
 void VulkanPushBuffer::Map() {
 	_dbg_assert_(!writePtr_);
 	VkResult res = vmaMapMemory(vulkan_->Allocator(), buffers_[buf_].allocation, (void **)(&writePtr_));

Common/GPU/Vulkan/VulkanMemory.h

@@ -131,7 +131,10 @@ class VulkanPushBuffer {
 		info->range = sizeof(T);
 	}
 
-	size_t GetTotalSize() const;
+	size_t GetTotalSize() const;  // Used size
+	size_t GetTotalCapacity() const;
+
+	static std::vector<VulkanPushBuffer *> GetAllActive();
 
 private:
 	bool AddBuffer();
@@ -173,7 +176,7 @@ class VulkanDescSetPool {
 	const char *tag_;
 	VulkanContext *vulkan_ = nullptr;
 	VkDescriptorPool descPool_ = VK_NULL_HANDLE;
-	VkDescriptorPoolCreateInfo info_;
+	VkDescriptorPoolCreateInfo info_{};
 	std::vector<VkDescriptorPoolSize> sizes_;
 	std::function<void()> clear_;
 	uint32_t usage_ = 0;

GPU/Vulkan/DebugVisVulkan.cpp

@@ -15,24 +15,83 @@
 // Official git repository and contact information can be found at
 // https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
 
+#include <algorithm>
+#include <sstream>
+#include <cstring>
+
 #include "Common/Render/DrawBuffer.h"
 #include "Common/GPU/thin3d.h"
+#include "Common/GPU/Vulkan/VulkanContext.h"
 #include "Common/UI/Context.h"
 #include "Common/UI/View.h"
 #include "Common/System/Display.h"
 #include "Common/System/System.h"
 
+#include "ext/vma/vk_mem_alloc.h"
+
 #include "DebugVisVulkan.h"
 #include "Common/GPU/Vulkan/VulkanMemory.h"
 #include "Common/GPU/Vulkan/VulkanImage.h"
+#include "Common/Data/Text/Parsers.h"
 #include "GPU/Vulkan/GPU_Vulkan.h"
 #include "GPU/Vulkan/VulkanUtil.h"
 #include "GPU/Vulkan/TextureCacheVulkan.h"
 
 #undef DrawText
 
+bool comparePushBufferNames(const VulkanPushBuffer *a, const VulkanPushBuffer *b) {
+	return strcmp(a->Name(), b->Name()) < 0;
+}
+
 void DrawAllocatorVis(UIContext *ui, GPUInterface *gpu) {
-	// TODO: Make a new allocator visualizer for VMA.
+	// This one will simply display stats.
+	Draw::DrawContext *draw = ui->GetDrawContext();
+
+	VulkanContext *vulkan = (VulkanContext *)draw->GetNativeObject(Draw::NativeObject::CONTEXT);
+	if (!vulkan) {
+		return;
+	}
+
+	VmaTotalStatistics vmaStats;
+	vmaCalculateStatistics(vulkan->Allocator(), &vmaStats);
+
+	std::vector<VmaBudget> budgets;
+	budgets.resize(vulkan->GetMemoryProperties().memoryHeapCount);
+	vmaGetHeapBudgets(vulkan->Allocator(), &budgets[0]);
+
+	size_t totalBudget = 0;
+	size_t totalUsedBytes = 0;
+	for (auto &budget : budgets) {
+		totalBudget += budget.budget;
+		totalUsedBytes += budget.usage;
+	}
+
+	std::stringstream str;
+	str << "Allocated " << NiceSizeFormat(vmaStats.total.statistics.allocationBytes) << " in " << vmaStats.total.statistics.allocationCount << " allocs" << std::endl;
+	// Note: The overall number includes stuff like descriptor sets pools and other things that are not directly visible as allocations.
+	str << "Overall " << NiceSizeFormat(totalUsedBytes) << " used out of " << NiceSizeFormat(totalBudget) << " available" << std::endl;
+
+	str << "Push buffers:" << std::endl;
+
+	// Now list the various push buffers.
+	auto pushBuffers = VulkanPushBuffer::GetAllActive();
+	std::sort(pushBuffers.begin(), pushBuffers.end(), comparePushBufferNames);
+
+	for (auto push : pushBuffers) {
+		str << "  " << push->Name() << " "
+			<< NiceSizeFormat(push->GetTotalCapacity()) << ", used: "
+			<< NiceSizeFormat(push->GetTotalSize()) << std::endl;
+	}
+
+	const int padding = 10 + System_GetPropertyFloat(SYSPROP_DISPLAY_SAFE_INSET_LEFT);
+	const int starty = 50 + System_GetPropertyFloat(SYSPROP_DISPLAY_SAFE_INSET_TOP);
+	int x = padding;
+	int y = starty;
+
+	ui->SetFontScale(0.7f, 0.7f);
+	ui->DrawTextShadow(str.str().c_str(), x, y, 0xFFFFFFFF, FLAG_DYNAMIC_ASCII);
+	ui->SetFontScale(1.0f, 1.0f);
+	ui->Flush();
 }
 
 void DrawGPUProfilerVis(UIContext *ui, GPUInterface *gpu) {

UI/DevScreens.cpp

@@ -101,8 +101,7 @@ void DevMenuScreen::CreatePopupContents(UI::ViewGroup *parent) {
 	items->Add(new Choice(dev->T("Jit Compare")))->OnClick.Handle(this, &DevMenuScreen::OnJitCompare);
 	items->Add(new Choice(dev->T("Shader Viewer")))->OnClick.Handle(this, &DevMenuScreen::OnShaderView);
 	if (g_Config.iGPUBackend == (int)GPUBackend::VULKAN) {
-		// TODO: Make a new allocator visualizer for VMA.
-		// items->Add(new CheckBox(&g_Config.bShowAllocatorDebug, dev->T("Allocator Viewer")));
+		items->Add(new CheckBox(&g_Config.bShowAllocatorDebug, dev->T("Allocator Viewer")));
 		items->Add(new CheckBox(&g_Config.bShowGpuProfile, dev->T("GPU Profile")));
 	}
 	items->Add(new Choice(dev->T("Toggle Freeze")))->OnClick.Handle(this, &DevMenuScreen::OnFreezeFrame);