From a8093c2a3cf98ccccabeb1d6a2c1ccc5e191557f Mon Sep 17 00:00:00 2001
From: lizzie <lizzie@eden-emu.dev>
Date: Tue, 10 Feb 2026 03:34:07 +0100
Subject: [*] change all std::unordered_map and std::unordered_set into
 ankerl::unordered_dense::map/set variants (#3442)

mainly doing this to reduce memory footprint; we all know how nice ankerl::unordered_dense is

in theory 4x faster - in practice these maps arent that "hot" anyways so not likely to have much perf gained

i just want to reduce mem fragmentation to ease my porting process, plus it helps other platforms as well (ahem weak Mediatek devices) :)

Signed-off-by: lizzie <lizzie@eden-emu.dev>

Co-authored-by: Caio Oliveira <caiooliveirafarias0@gmail.com>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3442
Reviewed-by: DraVee <dravee@eden-emu.dev>
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Co-authored-by: lizzie <lizzie@eden-emu.dev>
Co-committed-by: lizzie <lizzie@eden-emu.dev>
---
 src/video_core/vulkan_common/vulkan_device.cpp | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

(limited to 'src/video_core/vulkan_common/vulkan_device.cpp')

diff --git a/src/video_core/vulkan_common/vulkan_device.cpp b/src/video_core/vulkan_common/vulkan_device.cpp
index f06551b91e..8cb2ebfb62 100644
--- a/src/video_core/vulkan_common/vulkan_device.cpp
+++ b/src/video_core/vulkan_common/vulkan_device.cpp
@@ -9,7 +9,7 @@
 #include <chrono>
 #include <optional>
 #include <thread>
-#include <unordered_set>
+#include <ankerl/unordered_dense.h>
 #include <utility>
 #include <vector>
 
@@ -145,7 +145,7 @@ VkFormatFeatureFlags GetFormatFeatures(VkFormatProperties properties, FormatType
     }
 }
 
-std::unordered_map<VkFormat, VkFormatProperties> GetFormatProperties(vk::PhysicalDevice physical) {
+ankerl::unordered_dense::map<VkFormat, VkFormatProperties> GetFormatProperties(vk::PhysicalDevice physical) {
     static constexpr std::array formats{
         VK_FORMAT_A1R5G5B5_UNORM_PACK16,
         VK_FORMAT_A2B10G10R10_SINT_PACK32,
@@ -287,7 +287,7 @@ std::unordered_map<VkFormat, VkFormatProperties> GetFormatProperties(vk::Physica
         VK_FORMAT_R8_USCALED,
         VK_FORMAT_S8_UINT,
     };
-    std::unordered_map<VkFormat, VkFormatProperties> format_properties;
+    ankerl::unordered_dense::map<VkFormat, VkFormatProperties> format_properties;
     for (const auto format : formats) {
         format_properties.emplace(format, physical.GetFormatProperties(format));
     }
@@ -295,7 +295,7 @@ std::unordered_map<VkFormat, VkFormatProperties> GetFormatProperties(vk::Physica
 }
 
 #if defined(ANDROID) && defined(ARCHITECTURE_arm64)
-void OverrideBcnFormats(std::unordered_map<VkFormat, VkFormatProperties>& format_properties) {
+void OverrideBcnFormats(ankerl::unordered_dense::map<VkFormat, VkFormatProperties>& format_properties) {
     // These properties are extracted from Adreno driver 512.687.0
     constexpr VkFormatFeatureFlags tiling_features{VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT |
                                                    VK_FORMAT_FEATURE_BLIT_SRC_BIT |
@@ -1612,7 +1612,7 @@ void Device::CollectToolingInfo() {
 std::vector<VkDeviceQueueCreateInfo> Device::GetDeviceQueueCreateInfos() const {
     static constexpr float QUEUE_PRIORITY = 1.0f;
 
-    std::unordered_set<u32> unique_queue_families{graphics_family, present_family};
+    ankerl::unordered_dense::set<u32> unique_queue_families{graphics_family, present_family};
     std::vector<VkDeviceQueueCreateInfo> queue_cis;
     queue_cis.reserve(unique_queue_families.size());
 
-- 
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