Merge pull request #2359 from stenzek/uwp

Port DuckStation to UWP (and Xbox)

.gitignore

@@ -40,3 +40,7 @@ __pycache__
 
 # other repos
 /dep/mac
+
+# UWP crap
+Generated Files
+/packages

dep/msvc/vsprops/Base.props

@@ -30,15 +30,23 @@
     </Link>
   </ItemDefinitionGroup>
 
-  <!-- Disable exceptions. -->
-  <ItemDefinitionGroup>
+  <!-- Disable exceptions when not building for UWP. -->
+  <ItemDefinitionGroup Condition="'$(BuildingForUWP)'!='true'">
     <ClCompile>
       <PreprocessorDefinitions>_HAS_EXCEPTIONS=0;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>false</ExceptionHandling>
     </ClCompile>
   </ItemDefinitionGroup>
 
-  <ItemDefinitionGroup Condition="'$(Configuration)'=='Debug'">
+  <ItemDefinitionGroup Condition="'$(BuildingForUWP)'=='true'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <AdditionalIncludeDirectories></AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>_UWP;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+  </ItemDefinitionGroup>
+
+  <ItemDefinitionGroup Condition="'$(Configuration)'=='Debug' Or '$(Configuration)'=='DebugUWP'">
     <ClCompile>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
@@ -67,7 +75,7 @@
       <OptimizeReferences>true</OptimizeReferences>
     </Link>
   </ItemDefinitionGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)'=='ReleaseLTCG'">
+  <ItemDefinitionGroup Condition="'$(Configuration)'=='ReleaseLTCG' Or '$(Configuration)'=='ReleaseUWP'">
     <ClCompile>
       <Optimization>MaxSpeed</Optimization>
       <IntrinsicFunctions>true</IntrinsicFunctions>

dep/msvc/vsprops/Configurations.props

@@ -49,18 +49,59 @@
       <Configuration>Release</Configuration>
       <Platform>x64</Platform>
     </ProjectConfiguration>
+    <ProjectConfiguration Include="DebugUWP|ARM64">
+      <Configuration>DebugUWP</Configuration>
+      <Platform>ARM64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="DebugUWP|Win32">
+      <Configuration>DebugUWP</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="DebugUWP|x64">
+      <Configuration>DebugUWP</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="ReleaseUWP|ARM64">
+      <Configuration>ReleaseUWP</Configuration>
+      <Platform>ARM64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="ReleaseUWP|Win32">
+      <Configuration>ReleaseUWP</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="ReleaseUWP|x64">
+      <Configuration>ReleaseUWP</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
   </ItemGroup>
 
+  <PropertyGroup Label="UserMacros">
+    <BuildingForUWP Condition="'$(Configuration)'=='DebugUWP' Or '$(Configuration)'=='ReleaseUWP'">true</BuildingForUWP>
+  </PropertyGroup>
+
+  <Import Project="$(SolutionDir)packages\Microsoft.Windows.CppWinRT.2.0.210505.3\build\native\Microsoft.Windows.CppWinRT.props" Condition="('$(Configuration)'=='DebugUWP' Or '$(Configuration)'=='ReleaseUWP') And Exists('$(SolutionDir)packages\Microsoft.Windows.CppWinRT.2.0.210505.3\build\native\Microsoft.Windows.CppWinRT.props')" />
+
   <PropertyGroup Label="Globals">
     <ProjectName>$(MSBuildProjectName)</ProjectName>
     <RootNamespace>$(MSBuildProjectName)</RootNamespace>
   </PropertyGroup>
 
-  <PropertyGroup Label="Globals">
+  <PropertyGroup Label="Globals" Condition="'$(BuildingForUWP)'!='true'">
     <Keyword>Win32Proj</Keyword>
     <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
   </PropertyGroup>
   
+  <PropertyGroup Label="Globals" Condition="'$(BuildingForUWP)'=='true'">
+    <MinimalCoreWin>true</MinimalCoreWin>
+    <DefaultLanguage>en-US</DefaultLanguage>
+    <MinimumVisualStudioVersion>15.0</MinimumVisualStudioVersion>
+    <AppContainerApplication>true</AppContainerApplication>
+    <ApplicationType>Windows Store</ApplicationType>
+    <ApplicationTypeRevision>10.0</ApplicationTypeRevision>
+    <WindowsTargetPlatformVersion Condition="'$(WindowsTargetPlatformVersion)' == '' ">10.0.19041.0</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformMinVersion>10.0.17134.0</WindowsTargetPlatformMinVersion>
+  </PropertyGroup>
+
   <PropertyGroup Label="UserMacros">
     <RootBuildDir>$(SolutionDir)build\$(Configuration)-$(Platform)\</RootBuildDir>
   </PropertyGroup>

dep/msvc/vsprops/StaticLibrary.props

@@ -8,6 +8,12 @@
     <ConfigurationType>StaticLibrary</ConfigurationType>
   </PropertyGroup>
 
+  <PropertyGroup Label="Globals" Condition="'$(BuildingForUWP)'=='true'">
+    <CppWinRTOptimized Condition="'$(Configuration)'=='ReleaseUWP'">true</CppWinRTOptimized>
+    <CppWinRTRootNamespaceAutoMerge>false</CppWinRTRootNamespaceAutoMerge>
+    <CppWinRTGenerateWindowsMetadata>false</CppWinRTGenerateWindowsMetadata>
+  </PropertyGroup>
+
   <Import Project="Toolkit.props" />
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
@@ -19,4 +25,4 @@
   </ItemDefinitionGroup>
 
   <Import Project="Base.props" />
-</Project>
+</Project>

dep/msvc/vsprops/Targets.props

@@ -1,4 +1,14 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
-</Project>
+
+  <Import Project="$(SolutionDir)packages\Microsoft.Windows.CppWinRT.2.0.210505.3\build\native\Microsoft.Windows.CppWinRT.targets" Condition="'$(BuildingForUWP)'=='true' And Exists('$(SolutionDir)packages\Microsoft.Windows.CppWinRT.2.0.210505.3\build\native\Microsoft.Windows.CppWinRT.props')" />
+
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
+    </PropertyGroup>
+    <Error Condition="'$(BuildingForUWP)'=='true' And !Exists('$(SolutionDir)packages\Microsoft.Windows.CppWinRT.2.0.210505.3\build\native\Microsoft.Windows.CppWinRT.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)packages\Microsoft.Windows.CppWinRT.2.0.210505.3\build\native\Microsoft.Windows.CppWinRT.props'))" />
+    <Error Condition="'$(BuildingForUWP)'=='true' And !Exists('$(SolutionDir)packages\Microsoft.Windows.CppWinRT.2.0.210505.3\build\native\Microsoft.Windows.CppWinRT.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)packages\Microsoft.Windows.CppWinRT.2.0.210505.3\build\native\Microsoft.Windows.CppWinRT.targets'))" />
+  </Target>
+</Project>

dep/msvc/vsprops/Toolkit.props

@@ -6,10 +6,10 @@
     <SpectreMitigation>false</SpectreMitigation>
   </PropertyGroup>
 
-  <PropertyGroup Condition="'$(Configuration)'=='Debug' Or '$(Configuration)'=='DebugFast'">
+  <PropertyGroup Condition="'$(Configuration)'=='Debug' Or '$(Configuration)'=='DebugFast' Or '$(Configuration)'=='DebugUWP'">
     <UseDebugLibraries>true</UseDebugLibraries>
   </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)'=='Release' Or '$(Configuration)'=='ReleaseLTCG'">
+  <PropertyGroup Condition="'$(Configuration)'=='Release' Or '$(Configuration)'=='ReleaseLTCG' Or '$(Configuration)'=='ReleaseUWP'">
     <UseDebugLibraries>false</UseDebugLibraries>
   </PropertyGroup>
 </Project>

dep/vulkan-loader/include/vulkan_loader.h

@@ -20,10 +20,12 @@
 #endif
 
 // require vista+
+#ifndef WINAPI_FAMILY
 #ifdef _WIN32_WINNT
 #undef _WIN32_WINNT
 #endif
 #define _WIN32_WINNT _WIN32_WINNT_VISTA
+#endif
 
 #include <windows.h>
 

duckstation-uwp.sln

@@ -0,0 +1,376 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.29230.47
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "glad", "dep\glad\glad.vcxproj", "{43540154-9E1E-409C-834F-B84BE5621388}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Dependencies", "Dependencies", "{BA490C0E-497D-4634-A21E-E65012006385}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "imgui", "dep\imgui\imgui.vcxproj", "{BB08260F-6FBC-46AF-8924-090EE71360C6}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "common", "src\common\common.vcxproj", "{EE054E08-3799-4A59-A422-18259C105FFD}"
+	ProjectSection(ProjectDependencies) = postProject
+		{7F909E29-4808-4BD9-A60C-56C51A3AAEC2} = {7F909E29-4808-4BD9-A60C-56C51A3AAEC2}
+		{43540154-9E1E-409C-834F-B84BE5621388} = {43540154-9E1E-409C-834F-B84BE5621388}
+		{ED601289-AC1A-46B8-A8ED-17DB9EB73423} = {ED601289-AC1A-46B8-A8ED-17DB9EB73423}
+		{425D6C99-D1C8-43C2-B8AC-4D7B1D941017} = {425D6C99-D1C8-43C2-B8AC-4D7B1D941017}
+		{9C8DDEB0-2B8F-4F5F-BA86-127CDF27F035} = {9C8DDEB0-2B8F-4F5F-BA86-127CDF27F035}
+		{7FF9FDB9-D504-47DB-A16A-B08071999620} = {7FF9FDB9-D504-47DB-A16A-B08071999620}
+		{39F0ADFF-3A84-470D-9CF0-CA49E164F2F3} = {39F0ADFF-3A84-470D-9CF0-CA49E164F2F3}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "core", "src\core\core.vcxproj", "{868B98C8-65A1-494B-8346-250A73A48C0A}"
+	ProjectSection(ProjectDependencies) = postProject
+		{EE054E08-3799-4A59-A422-18259C105FFD} = {EE054E08-3799-4A59-A422-18259C105FFD}
+		{BB08260F-6FBC-46AF-8924-090EE71360C6} = {BB08260F-6FBC-46AF-8924-090EE71360C6}
+		{8906836E-F06E-46E8-B11A-74E5E8C7B8FB} = {8906836E-F06E-46E8-B11A-74E5E8C7B8FB}
+		{ED601289-AC1A-46B8-A8ED-17DB9EB73423} = {ED601289-AC1A-46B8-A8ED-17DB9EB73423}
+		{09553C96-9F39-49BF-8AE6-7ACBD07C410C} = {09553C96-9F39-49BF-8AE6-7ACBD07C410C}
+		{9C8DDEB0-2B8F-4F5F-BA86-127CDF27F035} = {9C8DDEB0-2B8F-4F5F-BA86-127CDF27F035}
+		{7FF9FDB9-D504-47DB-A16A-B08071999620} = {7FF9FDB9-D504-47DB-A16A-B08071999620}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "stb", "dep\stb\stb.vcxproj", "{ED601289-AC1A-46B8-A8ED-17DB9EB73423}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "simpleini", "dep\simpleini\simpleini.vcxproj", "{3773F4CC-614E-4028-8595-22E08CA649E3}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "tinyxml2", "dep\tinyxml2\tinyxml2.vcxproj", "{933118A9-68C5-47B4-B151-B03C93961623}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "minizip", "dep\minizip\minizip.vcxproj", "{8BDA439C-6358-45FB-9994-2FF083BABE06}"
+	ProjectSection(ProjectDependencies) = postProject
+		{7FF9FDB9-D504-47DB-A16A-B08071999620} = {7FF9FDB9-D504-47DB-A16A-B08071999620}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlib", "dep\zlib\zlib.vcxproj", "{7FF9FDB9-D504-47DB-A16A-B08071999620}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libchdr", "dep\libchdr\libchdr.vcxproj", "{425D6C99-D1C8-43C2-B8AC-4D7B1D941017}"
+	ProjectSection(ProjectDependencies) = postProject
+		{DD944834-7899-4C1C-A4C1-064B5009D239} = {DD944834-7899-4C1C-A4C1-064B5009D239}
+		{7FF9FDB9-D504-47DB-A16A-B08071999620} = {7FF9FDB9-D504-47DB-A16A-B08071999620}
+		{97CBD3CB-CBC7-4D52-ABDE-F0AE7B794A5D} = {97CBD3CB-CBC7-4D52-ABDE-F0AE7B794A5D}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libFLAC", "dep\libFLAC\libFLAC.vcxproj", "{97CBD3CB-CBC7-4D52-ABDE-F0AE7B794A5D}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "lzma", "dep\lzma\lzma.vcxproj", "{DD944834-7899-4C1C-A4C1-064B5009D239}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "frontend-common", "src\frontend-common\frontend-common.vcxproj", "{6245DEC8-D2DA-47EE-A373-CBD6FCF3ECE6}"
+	ProjectSection(ProjectDependencies) = postProject
+		{075CED82-6A20-46DF-94C7-9624AC9DDBEB} = {075CED82-6A20-46DF-94C7-9624AC9DDBEB}
+		{8BDA439C-6358-45FB-9994-2FF083BABE06} = {8BDA439C-6358-45FB-9994-2FF083BABE06}
+		{933118A9-68C5-47B4-B151-B03C93961623} = {933118A9-68C5-47B4-B151-B03C93961623}
+		{868B98C8-65A1-494B-8346-250A73A48C0A} = {868B98C8-65A1-494B-8346-250A73A48C0A}
+		{3773F4CC-614E-4028-8595-22E08CA649E3} = {3773F4CC-614E-4028-8595-22E08CA649E3}
+		{4BA0A6D4-3AE1-42B2-9347-096FD023FF64} = {4BA0A6D4-3AE1-42B2-9347-096FD023FF64}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "xxhash", "dep\xxhash\xxhash.vcxproj", "{09553C96-9F39-49BF-8AE6-7ACBD07C410C}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "scmversion", "src\scmversion\scmversion.vcxproj", "{075CED82-6A20-46DF-94C7-9624AC9DDBEB}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "glslang", "dep\glslang\glslang.vcxproj", "{7F909E29-4808-4BD9-A60C-56C51A3AAEC2}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "vulkan-loader", "dep\vulkan-loader\vulkan-loader.vcxproj", "{9C8DDEB0-2B8F-4F5F-BA86-127CDF27F035}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "vixl", "dep\vixl\vixl.vcxproj", "{8906836E-F06E-46E8-B11A-74E5E8C7B8FB}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libsamplerate", "dep\libsamplerate\libsamplerate.vcxproj", "{39F0ADFF-3A84-470D-9CF0-CA49E164F2F3}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "rcheevos", "dep\rcheevos\rcheevos.vcxproj", "{4BA0A6D4-3AE1-42B2-9347-096FD023FF64}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "duckstation-uwp", "src\duckstation-uwp\duckstation-uwp.vcxproj", "{E2A6CEA9-9537-4C61-B637-81F1F17EF638}"
+	ProjectSection(ProjectDependencies) = postProject
+		{6245DEC8-D2DA-47EE-A373-CBD6FCF3ECE6} = {6245DEC8-D2DA-47EE-A373-CBD6FCF3ECE6}
+	EndProjectSection
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		DebugUWP|ARM64 = DebugUWP|ARM64
+		DebugUWP|x64 = DebugUWP|x64
+		DebugUWP|x86 = DebugUWP|x86
+		ReleaseUWP|ARM64 = ReleaseUWP|ARM64
+		ReleaseUWP|x64 = ReleaseUWP|x64
+		ReleaseUWP|x86 = ReleaseUWP|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{43540154-9E1E-409C-834F-B84BE5621388}.DebugUWP|ARM64.ActiveCfg = DebugUWP|ARM64
+		{43540154-9E1E-409C-834F-B84BE5621388}.DebugUWP|ARM64.Build.0 = DebugUWP|ARM64
+		{43540154-9E1E-409C-834F-B84BE5621388}.DebugUWP|x64.ActiveCfg = DebugUWP|x64
+		{43540154-9E1E-409C-834F-B84BE5621388}.DebugUWP|x64.Build.0 = DebugUWP|x64
+		{43540154-9E1E-409C-834F-B84BE5621388}.DebugUWP|x86.ActiveCfg = DebugUWP|Win32
+		{43540154-9E1E-409C-834F-B84BE5621388}.DebugUWP|x86.Build.0 = DebugUWP|Win32
+		{43540154-9E1E-409C-834F-B84BE5621388}.ReleaseUWP|ARM64.ActiveCfg = ReleaseUWP|ARM64
+		{43540154-9E1E-409C-834F-B84BE5621388}.ReleaseUWP|ARM64.Build.0 = ReleaseUWP|ARM64
+		{43540154-9E1E-409C-834F-B84BE5621388}.ReleaseUWP|x64.ActiveCfg = ReleaseUWP|x64
+		{43540154-9E1E-409C-834F-B84BE5621388}.ReleaseUWP|x64.Build.0 = ReleaseUWP|x64
+		{43540154-9E1E-409C-834F-B84BE5621388}.ReleaseUWP|x86.ActiveCfg = ReleaseUWP|Win32
+		{43540154-9E1E-409C-834F-B84BE5621388}.ReleaseUWP|x86.Build.0 = ReleaseUWP|Win32
+		{BB08260F-6FBC-46AF-8924-090EE71360C6}.DebugUWP|ARM64.ActiveCfg = DebugUWP|ARM64
+		{BB08260F-6FBC-46AF-8924-090EE71360C6}.DebugUWP|ARM64.Build.0 = DebugUWP|ARM64
+		{BB08260F-6FBC-46AF-8924-090EE71360C6}.DebugUWP|x64.ActiveCfg = DebugUWP|x64
+		{BB08260F-6FBC-46AF-8924-090EE71360C6}.DebugUWP|x64.Build.0 = DebugUWP|x64
+		{BB08260F-6FBC-46AF-8924-090EE71360C6}.DebugUWP|x86.ActiveCfg = DebugUWP|Win32
+		{BB08260F-6FBC-46AF-8924-090EE71360C6}.DebugUWP|x86.Build.0 = DebugUWP|Win32
+		{BB08260F-6FBC-46AF-8924-090EE71360C6}.ReleaseUWP|ARM64.ActiveCfg = ReleaseUWP|ARM64
+		{BB08260F-6FBC-46AF-8924-090EE71360C6}.ReleaseUWP|ARM64.Build.0 = ReleaseUWP|ARM64
+		{BB08260F-6FBC-46AF-8924-090EE71360C6}.ReleaseUWP|x64.ActiveCfg = ReleaseUWP|x64
+		{BB08260F-6FBC-46AF-8924-090EE71360C6}.ReleaseUWP|x64.Build.0 = ReleaseUWP|x64
+		{BB08260F-6FBC-46AF-8924-090EE71360C6}.ReleaseUWP|x86.ActiveCfg = ReleaseUWP|Win32
+		{BB08260F-6FBC-46AF-8924-090EE71360C6}.ReleaseUWP|x86.Build.0 = ReleaseUWP|Win32
+		{EE054E08-3799-4A59-A422-18259C105FFD}.DebugUWP|ARM64.ActiveCfg = DebugUWP|ARM64
+		{EE054E08-3799-4A59-A422-18259C105FFD}.DebugUWP|ARM64.Build.0 = DebugUWP|ARM64
+		{EE054E08-3799-4A59-A422-18259C105FFD}.DebugUWP|x64.ActiveCfg = DebugUWP|x64
+		{EE054E08-3799-4A59-A422-18259C105FFD}.DebugUWP|x64.Build.0 = DebugUWP|x64
+		{EE054E08-3799-4A59-A422-18259C105FFD}.DebugUWP|x86.ActiveCfg = DebugUWP|Win32
+		{EE054E08-3799-4A59-A422-18259C105FFD}.DebugUWP|x86.Build.0 = DebugUWP|Win32
+		{EE054E08-3799-4A59-A422-18259C105FFD}.ReleaseUWP|ARM64.ActiveCfg = ReleaseUWP|ARM64
+		{EE054E08-3799-4A59-A422-18259C105FFD}.ReleaseUWP|ARM64.Build.0 = ReleaseUWP|ARM64
+		{EE054E08-3799-4A59-A422-18259C105FFD}.ReleaseUWP|x64.ActiveCfg = ReleaseUWP|x64
+		{EE054E08-3799-4A59-A422-18259C105FFD}.ReleaseUWP|x64.Build.0 = ReleaseUWP|x64
+		{EE054E08-3799-4A59-A422-18259C105FFD}.ReleaseUWP|x86.ActiveCfg = ReleaseUWP|Win32
+		{EE054E08-3799-4A59-A422-18259C105FFD}.ReleaseUWP|x86.Build.0 = ReleaseUWP|Win32
+		{868B98C8-65A1-494B-8346-250A73A48C0A}.DebugUWP|ARM64.ActiveCfg = DebugUWP|ARM64
+		{868B98C8-65A1-494B-8346-250A73A48C0A}.DebugUWP|ARM64.Build.0 = DebugUWP|ARM64
+		{868B98C8-65A1-494B-8346-250A73A48C0A}.DebugUWP|x64.ActiveCfg = DebugUWP|x64
+		{868B98C8-65A1-494B-8346-250A73A48C0A}.DebugUWP|x64.Build.0 = DebugUWP|x64
+		{868B98C8-65A1-494B-8346-250A73A48C0A}.DebugUWP|x86.ActiveCfg = DebugUWP|Win32
+		{868B98C8-65A1-494B-8346-250A73A48C0A}.DebugUWP|x86.Build.0 = DebugUWP|Win32
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+		{8906836E-F06E-46E8-B11A-74E5E8C7B8FB}.ReleaseUWP|x86.ActiveCfg = ReleaseUWP|Win32
+		{39F0ADFF-3A84-470D-9CF0-CA49E164F2F3}.DebugUWP|ARM64.ActiveCfg = DebugUWP|ARM64
+		{39F0ADFF-3A84-470D-9CF0-CA49E164F2F3}.DebugUWP|ARM64.Build.0 = DebugUWP|ARM64
+		{39F0ADFF-3A84-470D-9CF0-CA49E164F2F3}.DebugUWP|x64.ActiveCfg = DebugUWP|x64
+		{39F0ADFF-3A84-470D-9CF0-CA49E164F2F3}.DebugUWP|x64.Build.0 = DebugUWP|x64
+		{39F0ADFF-3A84-470D-9CF0-CA49E164F2F3}.DebugUWP|x86.ActiveCfg = DebugUWP|Win32
+		{39F0ADFF-3A84-470D-9CF0-CA49E164F2F3}.DebugUWP|x86.Build.0 = DebugUWP|Win32
+		{39F0ADFF-3A84-470D-9CF0-CA49E164F2F3}.ReleaseUWP|ARM64.ActiveCfg = ReleaseUWP|ARM64
+		{39F0ADFF-3A84-470D-9CF0-CA49E164F2F3}.ReleaseUWP|ARM64.Build.0 = ReleaseUWP|ARM64
+		{39F0ADFF-3A84-470D-9CF0-CA49E164F2F3}.ReleaseUWP|x64.ActiveCfg = ReleaseUWP|x64
+		{39F0ADFF-3A84-470D-9CF0-CA49E164F2F3}.ReleaseUWP|x64.Build.0 = ReleaseUWP|x64
+		{39F0ADFF-3A84-470D-9CF0-CA49E164F2F3}.ReleaseUWP|x86.ActiveCfg = ReleaseUWP|Win32
+		{39F0ADFF-3A84-470D-9CF0-CA49E164F2F3}.ReleaseUWP|x86.Build.0 = ReleaseUWP|Win32
+		{4BA0A6D4-3AE1-42B2-9347-096FD023FF64}.DebugUWP|ARM64.ActiveCfg = DebugUWP|ARM64
+		{4BA0A6D4-3AE1-42B2-9347-096FD023FF64}.DebugUWP|ARM64.Build.0 = DebugUWP|ARM64
+		{4BA0A6D4-3AE1-42B2-9347-096FD023FF64}.DebugUWP|x64.ActiveCfg = DebugUWP|x64
+		{4BA0A6D4-3AE1-42B2-9347-096FD023FF64}.DebugUWP|x64.Build.0 = DebugUWP|x64
+		{4BA0A6D4-3AE1-42B2-9347-096FD023FF64}.DebugUWP|x86.ActiveCfg = DebugUWP|Win32
+		{4BA0A6D4-3AE1-42B2-9347-096FD023FF64}.DebugUWP|x86.Build.0 = DebugUWP|Win32
+		{4BA0A6D4-3AE1-42B2-9347-096FD023FF64}.ReleaseUWP|ARM64.ActiveCfg = ReleaseUWP|ARM64
+		{4BA0A6D4-3AE1-42B2-9347-096FD023FF64}.ReleaseUWP|ARM64.Build.0 = ReleaseUWP|ARM64
+		{4BA0A6D4-3AE1-42B2-9347-096FD023FF64}.ReleaseUWP|x64.ActiveCfg = ReleaseUWP|x64
+		{4BA0A6D4-3AE1-42B2-9347-096FD023FF64}.ReleaseUWP|x64.Build.0 = ReleaseUWP|x64
+		{4BA0A6D4-3AE1-42B2-9347-096FD023FF64}.ReleaseUWP|x86.ActiveCfg = ReleaseUWP|Win32
+		{4BA0A6D4-3AE1-42B2-9347-096FD023FF64}.ReleaseUWP|x86.Build.0 = ReleaseUWP|Win32
+		{E2A6CEA9-9537-4C61-B637-81F1F17EF638}.DebugUWP|ARM64.ActiveCfg = DebugUWP|ARM64
+		{E2A6CEA9-9537-4C61-B637-81F1F17EF638}.DebugUWP|ARM64.Build.0 = DebugUWP|ARM64
+		{E2A6CEA9-9537-4C61-B637-81F1F17EF638}.DebugUWP|ARM64.Deploy.0 = DebugUWP|ARM64
+		{E2A6CEA9-9537-4C61-B637-81F1F17EF638}.DebugUWP|x64.ActiveCfg = DebugUWP|x64
+		{E2A6CEA9-9537-4C61-B637-81F1F17EF638}.DebugUWP|x64.Build.0 = DebugUWP|x64
+		{E2A6CEA9-9537-4C61-B637-81F1F17EF638}.DebugUWP|x64.Deploy.0 = DebugUWP|x64
+		{E2A6CEA9-9537-4C61-B637-81F1F17EF638}.DebugUWP|x86.ActiveCfg = DebugUWP|Win32
+		{E2A6CEA9-9537-4C61-B637-81F1F17EF638}.DebugUWP|x86.Build.0 = DebugUWP|Win32
+		{E2A6CEA9-9537-4C61-B637-81F1F17EF638}.DebugUWP|x86.Deploy.0 = DebugUWP|Win32
+		{E2A6CEA9-9537-4C61-B637-81F1F17EF638}.ReleaseUWP|ARM64.ActiveCfg = ReleaseUWP|ARM64
+		{E2A6CEA9-9537-4C61-B637-81F1F17EF638}.ReleaseUWP|ARM64.Build.0 = ReleaseUWP|ARM64
+		{E2A6CEA9-9537-4C61-B637-81F1F17EF638}.ReleaseUWP|ARM64.Deploy.0 = ReleaseUWP|ARM64
+		{E2A6CEA9-9537-4C61-B637-81F1F17EF638}.ReleaseUWP|x64.ActiveCfg = ReleaseUWP|x64
+		{E2A6CEA9-9537-4C61-B637-81F1F17EF638}.ReleaseUWP|x64.Build.0 = ReleaseUWP|x64
+		{E2A6CEA9-9537-4C61-B637-81F1F17EF638}.ReleaseUWP|x64.Deploy.0 = ReleaseUWP|x64
+		{E2A6CEA9-9537-4C61-B637-81F1F17EF638}.ReleaseUWP|x86.ActiveCfg = ReleaseUWP|Win32
+		{E2A6CEA9-9537-4C61-B637-81F1F17EF638}.ReleaseUWP|x86.Build.0 = ReleaseUWP|Win32
+		{E2A6CEA9-9537-4C61-B637-81F1F17EF638}.ReleaseUWP|x86.Deploy.0 = ReleaseUWP|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(NestedProjects) = preSolution
+		{43540154-9E1E-409C-834F-B84BE5621388} = {BA490C0E-497D-4634-A21E-E65012006385}
+		{BB08260F-6FBC-46AF-8924-090EE71360C6} = {BA490C0E-497D-4634-A21E-E65012006385}
+		{ED601289-AC1A-46B8-A8ED-17DB9EB73423} = {BA490C0E-497D-4634-A21E-E65012006385}
+		{3773F4CC-614E-4028-8595-22E08CA649E3} = {BA490C0E-497D-4634-A21E-E65012006385}
+		{933118A9-68C5-47B4-B151-B03C93961623} = {BA490C0E-497D-4634-A21E-E65012006385}
+		{8BDA439C-6358-45FB-9994-2FF083BABE06} = {BA490C0E-497D-4634-A21E-E65012006385}
+		{7FF9FDB9-D504-47DB-A16A-B08071999620} = {BA490C0E-497D-4634-A21E-E65012006385}
+		{425D6C99-D1C8-43C2-B8AC-4D7B1D941017} = {BA490C0E-497D-4634-A21E-E65012006385}
+		{97CBD3CB-CBC7-4D52-ABDE-F0AE7B794A5D} = {BA490C0E-497D-4634-A21E-E65012006385}
+		{DD944834-7899-4C1C-A4C1-064B5009D239} = {BA490C0E-497D-4634-A21E-E65012006385}
+		{09553C96-9F39-49BF-8AE6-7ACBD07C410C} = {BA490C0E-497D-4634-A21E-E65012006385}
+		{7F909E29-4808-4BD9-A60C-56C51A3AAEC2} = {BA490C0E-497D-4634-A21E-E65012006385}
+		{9C8DDEB0-2B8F-4F5F-BA86-127CDF27F035} = {BA490C0E-497D-4634-A21E-E65012006385}
+		{8906836E-F06E-46E8-B11A-74E5E8C7B8FB} = {BA490C0E-497D-4634-A21E-E65012006385}
+		{39F0ADFF-3A84-470D-9CF0-CA49E164F2F3} = {BA490C0E-497D-4634-A21E-E65012006385}
+		{4BA0A6D4-3AE1-42B2-9347-096FD023FF64} = {BA490C0E-497D-4634-A21E-E65012006385}
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {26E40B32-7C1D-48D0-95F4-1A500E054028}
+	EndGlobalSection
+EndGlobal

src/common/assert.cpp

@@ -3,7 +3,7 @@
 #include <cstdlib>
 #include <mutex>
 
-#ifdef _WIN32
+#if defined(_WIN32) && !defined(_UWP)
 #include "windows_headers.h"
 #include <intrin.h>
 #include <tlhelp32.h>
@@ -13,7 +13,7 @@ static std::mutex s_AssertFailedMutex;
 
 static inline void FreezeThreads(void** ppHandle)
 {
-#ifdef _WIN32
+#if defined(_WIN32) && !defined(_UWP)
   HANDLE hSnapshot = CreateToolhelp32Snapshot(TH32CS_SNAPTHREAD, 0);
   if (hSnapshot != INVALID_HANDLE_VALUE)
   {
@@ -43,7 +43,7 @@ static inline void FreezeThreads(void** ppHandle)
 
 static inline void ResumeThreads(void* pHandle)
 {
-#ifdef _WIN32
+#if defined(_WIN32) && !defined(_UWP)
   HANDLE hSnapshot = (HANDLE)pHandle;
   if (pHandle != INVALID_HANDLE_VALUE)
   {
@@ -79,7 +79,7 @@ void Y_OnAssertFailed(const char* szMessage, const char* szFunction, const char*
   char szMsg[512];
   std::snprintf(szMsg, sizeof(szMsg), "%s in function %s (%s:%u)", szMessage, szFunction, szFile, uLine);
 
-#ifdef _WIN32
+#if defined(_WIN32) && !defined(_UWP)
   SetConsoleTextAttribute(GetStdHandle(STD_ERROR_HANDLE), FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_INTENSITY);
   WriteConsoleA(GetStdHandle(STD_ERROR_HANDLE), szMsg, static_cast<DWORD>(std::strlen(szMsg)), NULL, NULL);
   OutputDebugStringA(szMsg);
@@ -114,7 +114,7 @@ void Y_OnPanicReached(const char* szMessage, const char* szFunction, const char*
   char szMsg[512];
   std::snprintf(szMsg, sizeof(szMsg), "%s in function %s (%s:%u)", szMessage, szFunction, szFile, uLine);
 
-#ifdef _WIN32
+#if defined(_WIN32) && !defined(_UWP)
   SetConsoleTextAttribute(GetStdHandle(STD_ERROR_HANDLE), FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_INTENSITY);
   WriteConsoleA(GetStdHandle(STD_ERROR_HANDLE), szMsg, static_cast<DWORD>(std::strlen(szMsg)), NULL, NULL);
   OutputDebugStringA(szMsg);

src/common/byte_stream.cpp

@@ -884,7 +884,7 @@ std::unique_ptr<ByteStream> ByteStream_OpenFileStream(const char* fileName, u32
   if ((openMode & (BYTESTREAM_OPEN_CREATE | BYTESTREAM_OPEN_WRITE)) == BYTESTREAM_OPEN_WRITE)
   {
     // if opening with write but not create, the path must exist.
-    if (GetFileAttributes(fileName) == INVALID_FILE_ATTRIBUTES)
+    if (!FileSystem::FileExists(fileName))
       return nullptr;
   }
 
@@ -895,7 +895,7 @@ std::unique_ptr<ByteStream> ByteStream_OpenFileStream(const char* fileName, u32
   {
     // if the file exists, use r+, otherwise w+
     // HACK: if we're not truncating, and the file exists (we want to only update it), we still have to use r+
-    if ((openMode & BYTESTREAM_OPEN_TRUNCATE) || GetFileAttributes(fileName) == INVALID_FILE_ATTRIBUTES)
+    if (!FileSystem::FileExists(fileName))
     {
       modeString[modeStringLength++] = 'w';
       if (openMode & BYTESTREAM_OPEN_READ)
@@ -1013,8 +1013,15 @@ std::unique_ptr<ByteStream> ByteStream_OpenFileStream(const char* fileName, u32
     DWORD desiredAccess = GENERIC_WRITE;
     if (openMode & BYTESTREAM_OPEN_READ)
       desiredAccess |= GENERIC_READ;
+
+#ifndef _UWP
     HANDLE hFile =
       CreateFileW(wideTemporaryFileName.c_str(), desiredAccess, FILE_SHARE_DELETE, NULL, CREATE_NEW, 0, NULL);
+#else
+    HANDLE hFile =
+      CreateFile2FromAppW(wideTemporaryFileName.c_str(), desiredAccess, FILE_SHARE_DELETE, CREATE_NEW, nullptr);
+#endif
+
     if (hFile == INVALID_HANDLE_VALUE)
       return nullptr;
 
@@ -1175,8 +1182,8 @@ std::unique_ptr<ByteStream> ByteStream_OpenFileStream(const char* fileName, u32
           }
           else // if (errno == ENOTDIR)
           {
-            // well.. someone's trying to open a fucking weird path that is comprised of both directories and files...
-            // I aint sticking around here to find out what disaster awaits... let fopen deal with it
+            // well.. someone's trying to open a fucking weird path that is comprised of both directories and
+            // files... I aint sticking around here to find out what disaster awaits... let fopen deal with it
             break;
           }
         }

src/common/common.vcxproj

@@ -33,8 +33,7 @@
     <ClInclude Include="file_system.h" />
     <ClInclude Include="gl\context.h" />
     <ClInclude Include="gl\context_wgl.h">
-      <ExcludedFromBuild Condition="'$(Platform)'=='ARM' Or '$(Platform)'=='ARM64'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)'=='DebugUWP' Or '$(Configuration)'=='ReleaseUWP'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Platform)'=='ARM' Or '$(Platform)'=='ARM64' Or '$(BuildingForUWP)'=='true'">true</ExcludedFromBuild>
     </ClInclude>
     <ClInclude Include="gl\program.h" />
     <ClInclude Include="gl\shader_cache.h" />
@@ -62,7 +61,9 @@
     <ClInclude Include="state_wrapper.h" />
     <ClInclude Include="string.h" />
     <ClInclude Include="string_util.h" />
-    <ClInclude Include="thirdparty\StackWalker.h" />
+    <ClInclude Include="thirdparty\StackWalker.h">
+      <ExcludedFromBuild Condition="'$(BuildingForUWP)'=='true'">true</ExcludedFromBuild>
+    </ClInclude>
     <ClInclude Include="timer.h" />
     <ClInclude Include="timestamp.h" />
     <ClInclude Include="types.h" />
@@ -79,7 +80,9 @@
     <ClInclude Include="vulkan\texture.h" />
     <ClInclude Include="vulkan\util.h" />
     <ClInclude Include="wav_writer.h" />
-    <ClInclude Include="win32_progress_callback.h" />
+    <ClInclude Include="win32_progress_callback.h">
+      <ExcludedFromBuild Condition="'$(BuildingForUWP)'=='true'">true</ExcludedFromBuild>
+    </ClInclude>
     <ClInclude Include="window_info.h" />
   </ItemGroup>
   <ItemGroup>
@@ -116,8 +119,7 @@
     <ClCompile Include="file_system.cpp" />
     <ClCompile Include="gl\context.cpp" />
     <ClCompile Include="gl\context_wgl.cpp">
-      <ExcludedFromBuild Condition="'$(Platform)'=='ARM' Or '$(Platform)'=='ARM64'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)'=='DebugUWP' Or '$(Configuration)'=='ReleaseUWP'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Platform)'=='ARM' Or '$(Platform)'=='ARM64' Or '$(BuildingForUWP)'=='true'">true</ExcludedFromBuild>
     </ClCompile>
     <ClCompile Include="gl\program.cpp" />
     <ClCompile Include="gl\shader_cache.cpp" />
@@ -140,7 +142,7 @@
     <ClCompile Include="string.cpp" />
     <ClCompile Include="string_util.cpp" />
     <ClCompile Include="thirdparty\StackWalker.cpp">
-      <ExcludedFromBuild Condition="'$(Configuration)'=='DebugUWP' Or '$(Configuration)'=='ReleaseUWP'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(BuildingForUWP)'=='true'">true</ExcludedFromBuild>
     </ClCompile>
     <ClCompile Include="timer.cpp" />
     <ClCompile Include="timestamp.cpp" />
@@ -155,7 +157,9 @@
     <ClCompile Include="vulkan\texture.cpp" />
     <ClCompile Include="vulkan\util.cpp" />
     <ClCompile Include="wav_writer.cpp" />
-    <ClCompile Include="win32_progress_callback.cpp" />
+    <ClCompile Include="win32_progress_callback.cpp">
+      <ExcludedFromBuild Condition="'$(BuildingForUWP)'=='true'">true</ExcludedFromBuild>
+    </ClCompile>
     <ClCompile Include="window_info.cpp" />
   </ItemGroup>
   <ItemGroup>

src/common/crash_handler.cpp

@@ -4,7 +4,7 @@
 #include <cinttypes>
 #include <cstdio>
 
-#ifdef _WIN32
+#if defined(_WIN32) && !defined(_UWP)
 #include "windows_headers.h"
 
 #include "thirdparty/StackWalker.h"

src/common/file_system.cpp

@@ -21,6 +21,20 @@
 
 #if defined(_WIN32)
 #include <shlobj.h>
+
+#if defined(_UWP)
+#include <fcntl.h>
+#include <io.h>
+
+#include <winrt/Windows.ApplicationModel.h>
+#include <winrt/Windows.Devices.Enumeration.h>
+#include <winrt/Windows.Foundation.Collections.h>
+#include <winrt/Windows.Foundation.h>
+#include <winrt/Windows.Storage.FileProperties.h>
+#include <winrt/Windows.Storage.Search.h>
+#include <winrt/Windows.Storage.h>
+#endif
+
 #else
 #include <dirent.h>
 #include <errno.h>
@@ -713,7 +727,7 @@ std::vector<std::string> GetRootDirectoryList()
 {
   std::vector<std::string> results;
 
-#ifdef _WIN32
+#if defined(_WIN32) && !defined(_UWP)
   char buf[256];
   if (GetLogicalDriveStringsA(sizeof(buf), buf) != 0)
   {
@@ -725,6 +739,28 @@ std::vector<std::string> GetRootDirectoryList()
       ptr += len + 1u;
     }
   }
+#elif defined(_UWP)
+  if (const auto install_location = winrt::Windows::ApplicationModel::Package::Current().InstalledLocation();
+      install_location)
+  {
+    if (const auto path = install_location.Path(); !path.empty())
+      results.push_back(StringUtil::WideStringToUTF8String(path));
+  }
+
+  if (const auto local_location = winrt::Windows::Storage::ApplicationData::Current().LocalFolder(); local_location)
+  {
+    if (const auto path = local_location.Path(); !path.empty())
+      results.push_back(StringUtil::WideStringToUTF8String(path));
+  }
+
+  const auto devices = winrt::Windows::Storage::KnownFolders::RemovableDevices();
+  const auto folders_task(devices.GetFoldersAsync());
+  for (const auto& storage_folder : folders_task.get())
+  {
+    const auto path = storage_folder.Path();
+    if (!path.empty())
+      results.push_back(StringUtil::WideStringToUTF8String(path));
+  }
 #else
   const char* home_path = std::getenv("HOME");
   if (home_path)
@@ -772,6 +808,106 @@ FileSystem::ManagedCFilePtr OpenManagedCFile(const char* filename, const char* m
   return ManagedCFilePtr(OpenCFile(filename, mode), [](std::FILE* fp) { std::fclose(fp); });
 }
 
+#ifdef _UWP
+std::FILE* OpenCFileUWP(const wchar_t* wfilename, const wchar_t* mode)
+{
+  DWORD access = 0;
+  DWORD share = 0;
+  DWORD disposition = 0;
+
+  int flags = 0;
+  const wchar_t* tmode = mode;
+  while (*tmode)
+  {
+    if (*tmode == L'r' && *(tmode + 1) == L'+')
+    {
+      access = GENERIC_READ | GENERIC_WRITE;
+      share = 0;
+      disposition = OPEN_EXISTING;
+      flags |= _O_RDWR;
+      tmode += 2;
+    }
+    else if (*tmode == L'w' && *(tmode + 1) == L'+')
+    {
+      access = GENERIC_READ | GENERIC_WRITE;
+      share = 0;
+      disposition = CREATE_ALWAYS;
+      flags |= _O_RDWR | _O_CREAT | _O_TRUNC;
+      tmode += 2;
+    }
+    else if (*tmode == L'a' && *(tmode + 1) == L'+')
+    {
+      access = GENERIC_READ | GENERIC_WRITE;
+      share = 0;
+      disposition = CREATE_ALWAYS;
+      flags |= _O_RDWR | _O_APPEND | _O_CREAT | _O_TRUNC;
+      tmode += 2;
+    }
+    else if (*tmode == L'r')
+    {
+      access = GENERIC_READ;
+      share = 0;
+      disposition = OPEN_EXISTING;
+      flags |= _O_RDONLY;
+      tmode++;
+    }
+    else if (*tmode == L'w')
+    {
+      access = GENERIC_WRITE;
+      share = 0;
+      disposition = CREATE_ALWAYS;
+      flags |= _O_WRONLY | _O_CREAT | _O_TRUNC;
+      tmode++;
+    }
+    else if (*tmode == L'a')
+    {
+      access = GENERIC_READ | GENERIC_WRITE;
+      share = 0;
+      disposition = CREATE_ALWAYS;
+      flags |= _O_WRONLY | _O_APPEND | _O_CREAT | _O_TRUNC;
+      tmode++;
+    }
+    else if (*tmode == L'b')
+    {
+      flags |= _O_BINARY;
+      tmode++;
+    }
+    else
+    {
+      Log_ErrorPrintf("Unknown mode flags: '%s'", StringUtil::WideStringToUTF8String(mode).c_str());
+      return nullptr;
+    }
+  }
+
+  HANDLE hFile = CreateFileFromAppW(wfilename, access, share, nullptr, disposition, 0, nullptr);
+  if (hFile == INVALID_HANDLE_VALUE)
+    return nullptr;
+
+  if (flags & _O_APPEND && !SetFilePointerEx(hFile, LARGE_INTEGER{}, nullptr, FILE_END))
+  {
+    Log_ErrorPrintf("SetFilePointerEx() failed: %08X", GetLastError());
+    CloseHandle(hFile);
+    return nullptr;
+  }
+
+  int fd = _open_osfhandle(reinterpret_cast<intptr_t>(hFile), flags);
+  if (fd < 0)
+  {
+    CloseHandle(hFile);
+    return nullptr;
+  }
+
+  std::FILE* fp = _wfdopen(fd, mode);
+  if (!fp)
+  {
+    _close(fd);
+    return nullptr;
+  }
+
+  return fp;
+}
+#endif // _UWP
+
 std::FILE* OpenCFile(const char* filename, const char* mode)
 {
 #ifdef _WIN32
@@ -789,9 +925,16 @@ std::FILE* OpenCFile(const char* filename, const char* mode)
     {
       wfilename[wlen] = 0;
       wmode[wmodelen] = 0;
+
       std::FILE* fp;
       if (_wfopen_s(&fp, wfilename, wmode) != 0)
+      {
+#ifdef _UWP
+        return OpenCFileUWP(wfilename, wmode);
+#else
         return nullptr;
+#endif
+      }
 
       return fp;
     }
@@ -1052,6 +1195,19 @@ static u32 TranslateWin32Attributes(u32 Win32Attributes)
   return r;
 }
 
+static DWORD WrapGetFileAttributes(const wchar_t* path)
+{
+#ifndef _UWP
+  return GetFileAttributesW(path);
+#else
+  WIN32_FILE_ATTRIBUTE_DATA fad;
+  if (!GetFileAttributesExFromAppW(path, GetFileExInfoStandard, &fad))
+    return INVALID_FILE_ATTRIBUTES;
+
+  return fad.dwFileAttributes;
+#endif
+}
+
 static const u32 READ_DIRECTORY_CHANGES_NOTIFY_FILTER = FILE_NOTIFY_CHANGE_FILE_NAME | FILE_NOTIFY_CHANGE_DIR_NAME |
                                                         FILE_NOTIFY_CHANGE_ATTRIBUTES | FILE_NOTIFY_CHANGE_SIZE |
                                                         FILE_NOTIFY_CHANGE_LAST_WRITE | FILE_NOTIFY_CHANGE_CREATION;
@@ -1064,7 +1220,7 @@ public:
       m_directoryChangeQueued(false)
   {
     m_bufferSize = 16384;
-    m_pBuffer = new byte[m_bufferSize];
+    m_pBuffer = new u8[m_bufferSize];
   }
 
   virtual ~ChangeNotifierWin32()
@@ -1103,7 +1259,7 @@ public:
     // has any bytes?
     if (bytesRead > 0)
     {
-      const byte* pCurrentPointer = m_pBuffer;
+      const u8* pCurrentPointer = m_pBuffer;
       PathString fileName;
       for (;;)
       {
@@ -1176,15 +1332,26 @@ private:
   HANDLE m_hDirectory;
   OVERLAPPED m_overlapped;
   bool m_directoryChangeQueued;
-  byte* m_pBuffer;
+  u8* m_pBuffer;
   u32 m_bufferSize;
 };
 
 std::unique_ptr<ChangeNotifier> CreateChangeNotifier(const char* path, bool recursiveWatch)
 {
   // open the directory up
-  HANDLE hDirectory = CreateFileA(path, FILE_LIST_DIRECTORY, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
-                                  nullptr, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OVERLAPPED, nullptr);
+  std::wstring path_wstr(StringUtil::UTF8StringToWideString(path));
+#ifndef _UWP
+  HANDLE hDirectory =
+    CreateFileW(path_wstr.c_str(), FILE_LIST_DIRECTORY, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, nullptr,
+                OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OVERLAPPED, nullptr);
+#else
+  CREATEFILE2_EXTENDED_PARAMETERS ep = {};
+  ep.dwSize = sizeof(ep);
+  ep.dwFileAttributes = FILE_ATTRIBUTE_NORMAL;
+  ep.dwFileFlags = FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OVERLAPPED;
+  HANDLE hDirectory = CreateFile2FromAppW(path_wstr.c_str(), FILE_LIST_DIRECTORY,
+                                          FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, OPEN_EXISTING, &ep);
+#endif
   if (hDirectory == nullptr)
     return nullptr;
 
@@ -1212,8 +1379,18 @@ static u32 RecursiveFindFiles(const char* OriginPath, const char* ParentPath, co
     tempStr = StringUtil::StdStringFromFormat("%s\\*", OriginPath);
   }
 
+  // holder for utf-8 conversion
   WIN32_FIND_DATAW wfd;
+  std::string utf8_filename;
+  utf8_filename.reserve(countof(wfd.cFileName) * 2);
+
+#ifndef _UWP
   HANDLE hFind = FindFirstFileW(StringUtil::UTF8StringToWideString(tempStr).c_str(), &wfd);
+#else
+  HANDLE hFind = FindFirstFileExFromAppW(StringUtil::UTF8StringToWideString(tempStr).c_str(), FindExInfoBasic, &wfd,
+                                         FindExSearchNameMatch, nullptr, 0);
+#endif
+
   if (hFind == INVALID_HANDLE_VALUE)
     return 0;
 
@@ -1227,10 +1404,6 @@ static u32 RecursiveFindFiles(const char* OriginPath, const char* ParentPath, co
     wildCardMatchAll = !(std::strcmp(Pattern, "*"));
   }
 
-  // holder for utf-8 conversion
-  std::string utf8_filename;
-  utf8_filename.reserve(countof(wfd.cFileName) * 2);
-
   // iterate results
   do
   {
@@ -1360,6 +1533,7 @@ bool FileSystem::StatFile(const char* path, FILESYSTEM_STAT_DATA* pStatData)
 
   wpath[wlen] = 0;
 
+#ifndef _UWP
   // determine attributes for the path. if it's a directory, things have to be handled differently..
   DWORD fileAttributes = GetFileAttributesW(wpath);
   if (fileAttributes == INVALID_FILE_ATTRIBUTES)
@@ -1398,6 +1572,16 @@ bool FileSystem::StatFile(const char* path, FILESYSTEM_STAT_DATA* pStatData)
   pStatData->ModificationTime.SetWindowsFileTime(&bhfi.ftLastWriteTime);
   pStatData->Size = ((u64)bhfi.nFileSizeHigh) << 32 | (u64)bhfi.nFileSizeLow;
   return true;
+#else
+  WIN32_FILE_ATTRIBUTE_DATA fad;
+  if (!GetFileAttributesExFromAppW(wpath, GetFileExInfoStandard, &fad))
+    return false;
+
+  pStatData->Attributes = TranslateWin32Attributes(fad.dwFileAttributes);
+  pStatData->ModificationTime.SetWindowsFileTime(&fad.ftLastWriteTime);
+  pStatData->Size = ((u64)fad.nFileSizeHigh) << 32 | (u64)fad.nFileSizeLow;
+  return true;
+#endif
 }
 
 bool FileSystem::StatFile(std::FILE* fp, FILESYSTEM_STAT_DATA* pStatData)
@@ -1447,7 +1631,7 @@ bool FileSystem::FileExists(const char* path)
   wpath[wlen] = 0;
 
   // determine attributes for the path. if it's a directory, things have to be handled differently..
-  DWORD fileAttributes = GetFileAttributesW(wpath);
+  DWORD fileAttributes = WrapGetFileAttributes(wpath);
   if (fileAttributes == INVALID_FILE_ATTRIBUTES)
     return false;
 
@@ -1477,7 +1661,7 @@ bool FileSystem::DirectoryExists(const char* path)
   wpath[wlen] = 0;
 
   // determine attributes for the path. if it's a directory, things have to be handled differently..
-  DWORD fileAttributes = GetFileAttributesW(wpath);
+  DWORD fileAttributes = WrapGetFileAttributes(wpath);
   if (fileAttributes == INVALID_FILE_ATTRIBUTES)
     return false;
 
@@ -1495,16 +1679,21 @@ bool FileSystem::CreateDirectory(const char* Path, bool Recursive)
   if (wpath[0] == L'\0')
     return false;
 
-  // try just flat-out, might work if there's no other segments that have to be made
+    // try just flat-out, might work if there's no other segments that have to be made
+#ifndef _UWP
   if (CreateDirectoryW(wpath.c_str(), nullptr))
     return true;
+#else
+  if (CreateDirectoryFromAppW(wpath.c_str(), nullptr))
+    return true;
+#endif
 
   // check error
   DWORD lastError = GetLastError();
   if (lastError == ERROR_ALREADY_EXISTS)
   {
     // check the attributes
-    u32 Attributes = GetFileAttributesW(wpath.c_str());
+    u32 Attributes = WrapGetFileAttributes(wpath.c_str());
     if (Attributes != INVALID_FILE_ATTRIBUTES && Attributes & FILE_ATTRIBUTE_DIRECTORY)
       return true;
     else
@@ -1523,7 +1712,13 @@ bool FileSystem::CreateDirectory(const char* Path, bool Recursive)
       if (wpath[i] == L'\\' || wpath[i] == L'/')
       {
         tempStr[i] = L'\0';
-        if (!CreateDirectoryW(tempStr, nullptr))
+
+#ifndef _UWP
+        const BOOL result = CreateDirectoryW(tempStr, nullptr);
+#else
+        const BOOL result = CreateDirectoryFromAppW(tempStr, nullptr);
+#endif
+        if (!result)
         {
           lastError = GetLastError();
           if (lastError != ERROR_ALREADY_EXISTS) // fine, continue to next path segment
@@ -1537,7 +1732,12 @@ bool FileSystem::CreateDirectory(const char* Path, bool Recursive)
     // re-create the end if it's not a separator, check / as well because windows can interpret them
     if (wpath[pathLength - 1] != L'\\' && wpath[pathLength - 1] != L'/')
     {
-      if (!CreateDirectoryW(wpath.c_str(), nullptr))
+#ifndef _UWP
+      const BOOL result = CreateDirectoryW(wpath.c_str(), nullptr);
+#else
+      const BOOL result = CreateDirectoryFromAppW(wpath.c_str(), nullptr);
+#endif
+      if (!result)
       {
         lastError = GetLastError();
         if (lastError != ERROR_ALREADY_EXISTS)
@@ -1561,14 +1761,15 @@ bool FileSystem::DeleteFile(const char* Path)
     return false;
 
   const std::wstring wpath(StringUtil::UTF8StringToWideString(Path));
-  DWORD fileAttributes = GetFileAttributesW(wpath.c_str());
-  if (fileAttributes == INVALID_FILE_ATTRIBUTES)
+  const DWORD fileAttributes = WrapGetFileAttributes(wpath.c_str());
+  if (fileAttributes == INVALID_FILE_ATTRIBUTES || fileAttributes & FILE_ATTRIBUTE_DIRECTORY)
     return false;
 
-  if (!(fileAttributes & FILE_ATTRIBUTE_DIRECTORY))
-    return (DeleteFileW(wpath.c_str()) == TRUE);
-  else
-    return false;
+#ifndef _UWP
+  return (DeleteFileW(wpath.c_str()) == TRUE);
+#else
+  return (DeleteFileFromAppW(wpath.c_str()) == TRUE);
+#endif
 }
 
 bool FileSystem::RenamePath(const char* OldPath, const char* NewPath)
@@ -1576,11 +1777,19 @@ bool FileSystem::RenamePath(const char* OldPath, const char* NewPath)
   const std::wstring old_wpath(StringUtil::UTF8StringToWideString(OldPath));
   const std::wstring new_wpath(StringUtil::UTF8StringToWideString(NewPath));
 
+#ifndef _UWP
   if (!MoveFileExW(old_wpath.c_str(), new_wpath.c_str(), MOVEFILE_REPLACE_EXISTING))
   {
     Log_ErrorPrintf("MoveFileEx('%s', '%s') failed: %08X", OldPath, NewPath, GetLastError());
     return false;
   }
+#else
+  if (!ReplaceFileFromAppW(old_wpath.c_str(), new_wpath.c_str(), nullptr, 0, nullptr, nullptr))
+  {
+    Log_ErrorPrintf("MoveFileFromAppW('%s', '%s') failed: %08X", OldPath, NewPath, GetLastError());
+    return false;
+  }
+#endif
 
   return true;
 }
@@ -1588,13 +1797,19 @@ bool FileSystem::RenamePath(const char* OldPath, const char* NewPath)
 static bool RecursiveDeleteDirectory(const std::wstring& wpath, bool Recursive)
 {
   // ensure it exists
-  DWORD fileAttributes = GetFileAttributesW(wpath.c_str());
-  if (fileAttributes == INVALID_FILE_ATTRIBUTES || !(fileAttributes & FILE_ATTRIBUTE_DIRECTORY))
+  const DWORD fileAttributes = WrapGetFileAttributes(wpath.c_str());
+  if (fileAttributes == INVALID_FILE_ATTRIBUTES || fileAttributes & FILE_ATTRIBUTE_DIRECTORY)
     return false;
 
   // non-recursive case just try removing the directory
   if (!Recursive)
+  {
+#ifndef _UWP
     return (RemoveDirectoryW(wpath.c_str()) == TRUE);
+#else
+    return (RemoveDirectoryFromAppW(wpath.c_str()) == TRUE);
+#endif
+  }
 
   // doing a recursive delete
   std::wstring fileName = wpath;
@@ -1602,7 +1817,12 @@ static bool RecursiveDeleteDirectory(const std::wstring& wpath, bool Recursive)
 
   // is there any files?
   WIN32_FIND_DATAW findData;
+#ifndef _UWP
   HANDLE hFind = FindFirstFileW(fileName.c_str(), &findData);
+#else
+  HANDLE hFind =
+    FindFirstFileExFromAppW(fileName.c_str(), FindExInfoBasic, &findData, FindExSearchNameMatch, nullptr, 0);
+#endif
   if (hFind == INVALID_HANDLE_VALUE)
     return false;
 
@@ -1634,7 +1854,12 @@ static bool RecursiveDeleteDirectory(const std::wstring& wpath, bool Recursive)
     else
     {
       // found a file, so delete it
-      if (!DeleteFileW(fileName.c_str()))
+#ifndef _UWP
+      const BOOL result = DeleteFileW(fileName.c_str());
+#else
+      const BOOL result = DeleteFileFromAppW(fileName.c_str());
+#endif
+      if (!result)
       {
         FindClose(hFind);
         return false;
@@ -1644,7 +1869,12 @@ static bool RecursiveDeleteDirectory(const std::wstring& wpath, bool Recursive)
   FindClose(hFind);
 
   // nuke the directory itself
-  if (!RemoveDirectoryW(wpath.c_str()))
+#ifndef _UWP
+  const BOOL result = RemoveDirectoryW(wpath.c_str());
+#else
+  const BOOL result = RemoveDirectoryFromAppW(wpath.c_str());
+#endif
+  if (!result)
     return false;
 
   // done
@@ -1664,8 +1894,10 @@ std::string GetProgramPath()
 
   // Fall back to the main module if this fails.
   HMODULE module = nullptr;
+#ifndef _UWP
   GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
                      reinterpret_cast<LPCWSTR>(&GetProgramPath), &module);
+#endif
 
   for (;;)
   {

src/common/jit_code_buffer.cpp

@@ -44,7 +44,21 @@ bool JitCodeBuffer::Allocate(u32 size /* = 64 * 1024 * 1024 */, u32 far_code_siz
   m_total_size = size + far_code_size;
 
 #if defined(_WIN32)
+#if !defined(_UWP)
   m_code_ptr = static_cast<u8*>(VirtualAlloc(nullptr, m_total_size, MEM_COMMIT, PAGE_EXECUTE_READWRITE));
+#else
+  m_code_ptr = static_cast<u8*>(
+    VirtualAlloc2FromApp(GetCurrentProcess(), nullptr, m_total_size, MEM_COMMIT, PAGE_READWRITE, nullptr, 0));
+  if (m_code_ptr)
+  {
+    ULONG old_protection;
+    if (!VirtualProtectFromApp(m_code_ptr, m_total_size, PAGE_EXECUTE_READWRITE, &old_protection))
+    {
+      VirtualFree(m_code_ptr, m_total_size, MEM_RELEASE);
+      return false;
+    }
+  }
+#endif
   if (!m_code_ptr)
   {
     Log_ErrorPrintf("VirtualAlloc(RWX, %u) for internal buffer failed: %u", m_total_size, GetLastError());
@@ -157,20 +171,48 @@ void JitCodeBuffer::Destroy()
   if (m_owns_buffer)
   {
 #if defined(_WIN32)
-    VirtualFree(m_code_ptr, 0, MEM_RELEASE);
+    if (!VirtualFree(m_code_ptr, 0, MEM_RELEASE))
+      Log_ErrorPrintf("Failed to free code pointer %p", m_code_ptr);
 #elif defined(__linux__) || defined(__ANDROID__) || defined(__APPLE__) || defined(__HAIKU__) || defined(__FreeBSD__)
-    munmap(m_code_ptr, m_total_size);
+    if (munmap(m_code_ptr, m_total_size) != 0)
+      Log_ErrorPrintf("Failed to free code pointer %p", m_code_ptr);
 #endif
   }
   else if (m_code_ptr)
   {
 #if defined(_WIN32)
     DWORD old_protect = 0;
-    VirtualProtect(m_code_ptr, m_total_size, m_old_protection, &old_protect);
+    if (!VirtualProtect(m_code_ptr, m_total_size, m_old_protection, &old_protect))
+      Log_ErrorPrintf("Failed to restore protection on %p", m_code_ptr);
 #else
-    mprotect(m_code_ptr, m_total_size, m_old_protection);
+    if (mprotect(m_code_ptr, m_total_size, m_old_protection) != 0)
+      Log_ErrorPrintf("Failed to restore protection on %p", m_code_ptr);
 #endif
   }
+
+  m_code_ptr = nullptr;
+  m_free_code_ptr = nullptr;
+  m_code_size = 0;
+  m_code_reserve_size = 0;
+  m_code_used = 0;
+  m_far_code_ptr = nullptr;
+  m_free_far_code_ptr = nullptr;
+  m_far_code_size = 0;
+  m_far_code_used = 0;
+  m_total_size = 0;
+  m_guard_size = 0;
+  m_old_protection = 0;
+  m_owns_buffer = false;
+}
+
+void JitCodeBuffer::ReserveCode(u32 size)
+{
+  Assert(m_code_used == 0);
+  Assert(size < m_code_size);
+
+  m_code_reserve_size += size;
+  m_free_code_ptr += size;
+  m_code_size -= size;
 }
 
 void JitCodeBuffer::CommitCode(u32 length)
@@ -207,7 +249,7 @@ void JitCodeBuffer::Reset()
 {
   WriteProtect(false);
 
-  m_free_code_ptr = m_code_ptr + m_guard_size;
+  m_free_code_ptr = m_code_ptr + m_guard_size + m_code_reserve_size;
   m_code_used = 0;
   std::memset(m_free_code_ptr, 0, m_code_size);
   FlushInstructionCache(m_free_code_ptr, m_code_size);

src/common/jit_code_buffer.h

@@ -9,20 +9,23 @@ public:
   JitCodeBuffer(void* buffer, u32 size, u32 far_code_size, u32 guard_size);
   ~JitCodeBuffer();
 
+  bool IsValid() const { return (m_code_ptr != nullptr); }
+
   bool Allocate(u32 size = 64 * 1024 * 1024, u32 far_code_size = 0);
   bool Initialize(void* buffer, u32 size, u32 far_code_size = 0, u32 guard_size = 0);
   void Destroy();
   void Reset();
 
-  u8* GetCodePointer() const { return m_code_ptr; }
-  u32 GetTotalSize() const { return m_total_size; }
+  ALWAYS_INLINE u8* GetCodePointer() const { return m_code_ptr; }
+  ALWAYS_INLINE u32 GetTotalSize() const { return m_total_size; }
 
-  u8* GetFreeCodePointer() const { return m_free_code_ptr; }
-  u32 GetFreeCodeSpace() const { return static_cast<u32>(m_code_size - m_code_used); }
+  ALWAYS_INLINE u8* GetFreeCodePointer() const { return m_free_code_ptr; }
+  ALWAYS_INLINE u32 GetFreeCodeSpace() const { return static_cast<u32>(m_code_size - m_code_used); }
+  void ReserveCode(u32 size);
   void CommitCode(u32 length);
 
-  u8* GetFreeFarCodePointer() const { return m_free_far_code_ptr; }
-  u32 GetFreeFarCodeSpace() const { return static_cast<u32>(m_far_code_size - m_far_code_used); }
+  ALWAYS_INLINE u8* GetFreeFarCodePointer() const { return m_free_far_code_ptr; }
+  ALWAYS_INLINE u32 GetFreeFarCodeSpace() const { return static_cast<u32>(m_far_code_size - m_far_code_used); }
   void CommitFarCode(u32 length);
 
   /// Adjusts the free code pointer to the specified alignment, padding with bytes.
@@ -43,6 +46,7 @@ private:
   u8* m_code_ptr = nullptr;
   u8* m_free_code_ptr = nullptr;
   u32 m_code_size = 0;
+  u32 m_code_reserve_size = 0;
   u32 m_code_used = 0;
 
   u8* m_far_code_ptr = nullptr;

src/common/memory_arena.cpp

@@ -135,8 +135,13 @@ bool MemoryArena::Create(size_t size, bool writable, bool executable)
 
 #if defined(_WIN32)
   const DWORD protect = (writable ? (executable ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE) : PAGE_READONLY);
+#ifndef _UWP
   m_file_handle = CreateFileMappingA(INVALID_HANDLE_VALUE, nullptr, protect, Truncate32(size >> 32), Truncate32(size),
                                      file_mapping_name.c_str());
+#else
+  m_file_handle = CreateFileMappingFromApp(INVALID_HANDLE_VALUE, nullptr, protect, size,
+                                           StringUtil::UTF8StringToWideString(file_mapping_name).c_str());
+#endif
   if (!m_file_handle)
   {
     Log_ErrorPrintf("CreateFileMapping failed: %u", GetLastError());
@@ -257,8 +262,16 @@ void* MemoryArena::CreateViewPtr(size_t offset, size_t size, bool writable, bool
   void* base_pointer;
 #if defined(_WIN32)
   const DWORD desired_access = FILE_MAP_READ | (writable ? FILE_MAP_WRITE : 0) | (executable ? FILE_MAP_EXECUTE : 0);
+#ifndef _UWP
   base_pointer =
     MapViewOfFileEx(m_file_handle, desired_access, Truncate32(offset >> 32), Truncate32(offset), size, fixed_address);
+#else
+  // UWP does not support fixed mappings.
+  if (!fixed_address)
+    base_pointer = MapViewOfFileFromApp(m_file_handle, desired_access, offset, size);
+  else
+    base_pointer = nullptr;
+#endif
   if (!base_pointer)
     return nullptr;
 #elif defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__)

src/common/page_fault_handler.cpp

@@ -24,8 +24,10 @@ namespace Common::PageFaultHandler {
 
 struct RegisteredHandler
 {
-  void* owner;
   Callback callback;
+  const void* owner;
+  void* start_pc;
+  u32 code_size;
 };
 static std::vector<RegisteredHandler> m_handlers;
 static std::mutex m_handler_lock;
@@ -78,7 +80,7 @@ static bool IsStoreInstruction(const void* ptr)
 }
 #endif
 
-#if defined(_WIN32) && (defined(CPU_X64) || defined(CPU_AARCH64))
+#if defined(_WIN32) && !defined(_UWP) && (defined(CPU_X64) || defined(CPU_AARCH64))
 static PVOID s_veh_handle;
 
 static LONG ExceptionHandler(PEXCEPTION_POINTERS exi)
@@ -110,9 +112,149 @@ static LONG ExceptionHandler(PEXCEPTION_POINTERS exi)
   }
 
   s_in_handler = false;
+
   return EXCEPTION_CONTINUE_SEARCH;
 }
 
+u32 GetHandlerCodeSize()
+{
+  return 0;
+}
+
+#elif defined(_UWP)
+
+// https://docs.microsoft.com/en-us/cpp/build/exception-handling-x64?view=msvc-160
+struct UNWIND_INFO
+{
+  BYTE version : 3;
+  BYTE flags : 5;
+  BYTE size_of_prologue;
+  BYTE count_of_unwind_codes;
+  BYTE frame_register : 4;
+  BYTE frame_offset_scaled : 4;
+  ULONG exception_handler_address;
+};
+
+struct UnwindHandler
+{
+  RUNTIME_FUNCTION runtime_function;
+  UNWIND_INFO unwind_info;
+  uint8_t exception_handler_code[32];
+};
+
+static constexpr size_t UNWIND_HANDLER_ALLOC_SIZE = 4096;
+static_assert(sizeof(UnwindHandler) <= UNWIND_HANDLER_ALLOC_SIZE);
+
+static EXCEPTION_DISPOSITION UnwindExceptionHandler(PEXCEPTION_RECORD ExceptionRecord, ULONG64 EstablisherFrame,
+                                                    PCONTEXT ContextRecord, PDISPATCHER_CONTEXT DispatcherContext)
+{
+  if (s_in_handler)
+    return ExceptionContinueSearch;
+
+  s_in_handler = true;
+
+  void* const exception_pc = reinterpret_cast<void*>(DispatcherContext->ControlPc);
+  void* const exception_address = reinterpret_cast<void*>(ExceptionRecord->ExceptionInformation[1]);
+  bool const is_write = ExceptionRecord->ExceptionInformation[0] == 1;
+
+  std::lock_guard<std::mutex> guard(m_handler_lock);
+  for (const RegisteredHandler& rh : m_handlers)
+  {
+    if (static_cast<const u8*>(exception_pc) >= static_cast<const u8*>(rh.start_pc) &&
+        static_cast<const u8*>(exception_pc) <= (static_cast<const u8*>(rh.start_pc) + rh.code_size))
+    {
+      if (rh.callback(exception_pc, exception_address, is_write) == HandlerResult::ContinueExecution)
+      {
+        s_in_handler = false;
+        return ExceptionContinueExecution;
+      }
+    }
+  }
+
+  s_in_handler = false;
+  return ExceptionContinueSearch;
+}
+
+static PRUNTIME_FUNCTION GetRuntimeFunctionCallback(DWORD64 ControlPc, PVOID Context)
+{
+  std::lock_guard<std::mutex> guard(m_handler_lock);
+  for (const RegisteredHandler& rh : m_handlers)
+  {
+    if (ControlPc >= reinterpret_cast<DWORD64>(rh.start_pc) &&
+        ControlPc <= (reinterpret_cast<DWORD64>(rh.start_pc) + rh.code_size))
+    {
+      return reinterpret_cast<PRUNTIME_FUNCTION>(rh.start_pc);
+    }
+  }
+
+  return nullptr;
+}
+
+static bool InstallFunctionTableCallback(const void* owner, void* start_pc, u32 code_size)
+{
+  if (code_size < UNWIND_HANDLER_ALLOC_SIZE)
+  {
+    Log_ErrorPrintf("Invalid code size: %u @ %p", code_size, UNWIND_HANDLER_ALLOC_SIZE);
+    return false;
+  }
+
+  if (!RtlInstallFunctionTableCallback(reinterpret_cast<DWORD64>(owner) | 0x3, reinterpret_cast<DWORD64>(start_pc),
+                                       static_cast<DWORD>(code_size), &GetRuntimeFunctionCallback, nullptr, nullptr))
+  {
+    Log_ErrorPrintf("RtlInstallFunctionTableCallback() failed: %08X", GetLastError());
+    return false;
+  }
+
+  // This is only valid on x86 for now.
+#ifndef CPU_X64
+  Log_ErrorPrint("Exception unwind codegen not implemented");
+  return false;
+#else
+  UnwindHandler* uh = static_cast<UnwindHandler*>(start_pc);
+  ULONG old_protection;
+  if (!VirtualProtectFromApp(uh, UNWIND_HANDLER_ALLOC_SIZE, PAGE_READWRITE, &old_protection))
+  {
+    Log_ErrorPrintf("VirtualProtectFromApp(RW) for exception handler failed: %08X", GetLastError());
+    return false;
+  }
+
+  uh->runtime_function.BeginAddress = UNWIND_HANDLER_ALLOC_SIZE;
+  uh->runtime_function.EndAddress = code_size;
+  uh->runtime_function.UnwindInfoAddress = offsetof(UnwindHandler, unwind_info);
+
+  uh->unwind_info.version = 1;
+  uh->unwind_info.flags = UNW_FLAG_EHANDLER;
+  uh->unwind_info.size_of_prologue = 0;
+  uh->unwind_info.count_of_unwind_codes = 0;
+  uh->unwind_info.frame_register = 0;
+  uh->unwind_info.frame_offset_scaled = 0;
+  uh->unwind_info.exception_handler_address = offsetof(UnwindHandler, exception_handler_code);
+
+  // mov rax, handler
+  const void* handler = UnwindExceptionHandler;
+  uh->exception_handler_code[0] = 0x48;
+  uh->exception_handler_code[1] = 0xb8;
+  std::memcpy(&uh->exception_handler_code[2], &handler, sizeof(handler));
+
+  // jmp rax
+  uh->exception_handler_code[10] = 0xff;
+  uh->exception_handler_code[11] = 0xe0;
+
+  if (!VirtualProtectFromApp(uh, UNWIND_HANDLER_ALLOC_SIZE, PAGE_EXECUTE_READ, &old_protection))
+  {
+    Log_ErrorPrintf("VirtualProtectFromApp(RX) for exception handler failed: %08X", GetLastError());
+    return false;
+  }
+
+  return true;
+#endif
+}
+
+u32 GetHandlerCodeSize()
+{
+  return UNWIND_HANDLER_ALLOC_SIZE;
+}
+
 #elif defined(USE_SIGSEGV)
 
 static struct sigaction s_old_sigsegv_action;
@@ -203,9 +345,21 @@ static void SIGSEGVHandler(int sig, siginfo_t* info, void* ctx)
     sa.sa_handler(sig);
 }
 
+u32 GetHandlerCodeSize()
+{
+  return 0;
+}
+
+#else
+
+u32 GetHandlerCodeSize()
+{
+  return 0;
+}
+
 #endif
 
-bool InstallHandler(void* owner, Callback callback)
+bool InstallHandler(const void* owner, void* start_pc, u32 code_size, Callback callback)
 {
   bool was_empty;
   {
@@ -217,31 +371,24 @@ bool InstallHandler(void* owner, Callback callback)
     }
 
     was_empty = m_handlers.empty();
-    m_handlers.push_back(RegisteredHandler{owner, std::move(callback)});
   }
 
   if (was_empty)
   {
-#if defined(_WIN32) && (defined(CPU_X64) || defined(CPU_AARCH64))
+#if defined(_WIN32) && !defined(_UWP) && (defined(CPU_X64) || defined(CPU_AARCH64))
     s_veh_handle = AddVectoredExceptionHandler(1, ExceptionHandler);
     if (!s_veh_handle)
     {
       Log_ErrorPrint("Failed to add vectored exception handler");
       return false;
     }
-#elif defined(USE_SIGSEGV)
-#if 0
-    // Alternative stack - we'll need this is we ever use the host stack for branches.
-    stack_t signal_stack = {};
-    signal_stack.ss_sp = malloc(SIGSTKSZ);
-    signal_stack.ss_size = SIGSTKSZ;
-    if (sigaltstack(&signal_stack, nullptr))
+#elif defined(_UWP)
+    if (!InstallFunctionTableCallback(owner, start_pc, code_size))
     {
-      Log_ErrorPrintf("signaltstack() failed: %d", errno);
+      Log_ErrorPrint("Failed to install function table callback");
       return false;
     }
-#endif
-
+#elif defined(USE_SIGSEGV)
     struct sigaction sa = {};
     sa.sa_sigaction = SIGSEGVHandler;
     sa.sa_flags = SA_SIGINFO;
@@ -264,10 +411,11 @@ bool InstallHandler(void* owner, Callback callback)
 #endif
   }
 
+  m_handlers.push_back(RegisteredHandler{callback, owner, start_pc, code_size});
   return true;
 }
 
-bool RemoveHandler(void* owner)
+bool RemoveHandler(const void* owner)
 {
   std::lock_guard<std::mutex> guard(m_handler_lock);
   auto it = std::find_if(m_handlers.begin(), m_handlers.end(),
@@ -279,9 +427,11 @@ bool RemoveHandler(void* owner)
 
   if (m_handlers.empty())
   {
-#if defined(_WIN32) && (defined(CPU_X64) || defined(CPU_AARCH64))
+#if defined(_WIN32) && !defined(_UWP) && (defined(CPU_X64) || defined(CPU_AARCH64))
     RemoveVectoredExceptionHandler(s_veh_handle);
     s_veh_handle = nullptr;
+#elif defined(_UWP)
+    // nothing to do here, any unregistered regions will be ignored
 #elif defined(USE_SIGSEGV)
     // restore old signal handler
 #if defined(__APPLE__) || defined(__aarch64__)

src/common/page_fault_handler.h

@@ -8,10 +8,12 @@ enum class HandlerResult
   ExecuteNextHandler,
 };
 
-using Callback = HandlerResult(*)(void* exception_pc, void* fault_address, bool is_write);
+using Callback = HandlerResult (*)(void* exception_pc, void* fault_address, bool is_write);
 using Handle = void*;
 
-bool InstallHandler(void* owner, Callback callback);
-bool RemoveHandler(void* owner);
+u32 GetHandlerCodeSize();
+
+bool InstallHandler(const void* owner, void* start_pc, u32 code_size, Callback callback);
+bool RemoveHandler(const void* owner);
 
 } // namespace Common::PageFaultHandler

src/common/timer.cpp

@@ -93,6 +93,7 @@ void Timer::SleepUntil(Value value, bool exact)
     if (diff <= 0)
       return;
 
+#ifndef _UWP
     HANDLE timer = GetSleepTimer();
     if (timer)
     {
@@ -110,6 +111,7 @@ void Timer::SleepUntil(Value value, bool exact)
         return;
       }
     }
+#endif
 
     // falling back to sleep... bad.
     Sleep(static_cast<DWORD>(static_cast<std::uint64_t>(diff) / 1000000));

src/common/window_info.cpp

@@ -2,7 +2,7 @@
 #include "common/log.h"
 Log_SetChannel(WindowInfo);
 
-#if defined(_WIN32)
+#if defined(_WIN32) && !defined(_UWP)
 
 #include "common/windows_headers.h"
 #include <dwmapi.h>

src/common/window_info.h

@@ -8,6 +8,7 @@ struct WindowInfo
   {
     Surfaceless,
     Win32,
+    WinRT,
     X11,
     Wayland,
     MacOS,

src/common/windows_headers.h

@@ -7,11 +7,13 @@
 #define NOMINMAX 1
 #endif
 
-// require vista+
+// require vista+, but don't set it when compiling for UWP
+#ifndef WINAPI_FAMILY
 #ifdef _WIN32_WINNT
 #undef _WIN32_WINNT
 #endif
 #define _WIN32_WINNT _WIN32_WINNT_VISTA
+#endif
 
 #include <windows.h>
 

src/core/cpu_code_cache.cpp

@@ -25,7 +25,7 @@ static constexpr u32 RECOMPILE_COUNT_TO_FALL_BACK_TO_INTERPRETER = 20;
 #ifdef WITH_RECOMPILER
 
 // Currently remapping the code buffer doesn't work in macOS or Haiku.
-#if !defined(__HAIKU__) && !defined(__APPLE__)
+#if !defined(__HAIKU__) && !defined(__APPLE__) && !defined(_UWP)
 #define USE_STATIC_CODE_BUFFER 1
 #endif
 
@@ -822,7 +822,10 @@ bool InitializeFastmem()
   Assert(mode != CPUFastmemMode::MMap);
 #endif
 
-  if (!Common::PageFaultHandler::InstallHandler(&s_host_code_map, handler))
+  s_code_buffer.ReserveCode(Common::PageFaultHandler::GetHandlerCodeSize());
+
+  if (!Common::PageFaultHandler::InstallHandler(&s_host_code_map, s_code_buffer.GetCodePointer(),
+                                                s_code_buffer.GetTotalSize(), handler))
   {
     Log_ErrorPrintf("Failed to install page fault handler");
     return false;

src/core/settings.h

@@ -369,10 +369,12 @@ struct Settings
   static constexpr CPUFastmemMode DEFAULT_CPU_FASTMEM_MODE = CPUFastmemMode::Disabled;
 #endif
 
-#ifndef __ANDROID__
-  static constexpr AudioBackend DEFAULT_AUDIO_BACKEND = AudioBackend::Cubeb;
-#else
+#if defined(__ANDROID__)
   static constexpr AudioBackend DEFAULT_AUDIO_BACKEND = AudioBackend::OpenSLES;
+#elif defined(_UWP)
+  static constexpr AudioBackend DEFAULT_AUDIO_BACKEND = AudioBackend::XAudio2;
+#else
+  static constexpr AudioBackend DEFAULT_AUDIO_BACKEND = AudioBackend::Cubeb;
 #endif
 
   static constexpr DisplayCropMode DEFAULT_DISPLAY_CROP_MODE = DisplayCropMode::Overscan;

src/duckstation-uwp/.gitignore

@@ -0,0 +1,6 @@
+database/
+inputprofiles/
+resources/
+shaders/
+BundleArtifacts/
+duckstation-uwp.pfx

src/duckstation-uwp/Package.appxmanifest

@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Package xmlns="http://schemas.microsoft.com/appx/manifest/foundation/windows10" xmlns:mp="http://schemas.microsoft.com/appx/2014/phone/manifest" xmlns:uap="http://schemas.microsoft.com/appx/manifest/uap/windows10" IgnorableNamespaces="uap mp">
+  <Identity
+    Name="57bcfd1f-31c1-4f8e-bf91-958732a81506"
+    Publisher="CN=Stenzek"
+    Version="1.0.0.0" />
+  <mp:PhoneIdentity PhoneProductId="57bcfd1f-31c1-4f8e-bf91-958732a81506" PhonePublisherId="00000000-0000-0000-0000-000000000000"/>
+  <Properties>
+    <DisplayName>DuckStation</DisplayName>
+    <PublisherDisplayName>Stenzek</PublisherDisplayName>
+    <Logo>Assets\StoreLogo.png</Logo>
+  </Properties>
+  <Dependencies>
+    <TargetDeviceFamily Name="Windows.Universal" MinVersion="10.0.0.0" MaxVersionTested="10.0.0.0" />
+  </Dependencies>
+  <Resources>
+    <Resource Language="x-generate" />
+  </Resources>
+  <Applications>
+    <Application Id="App" Executable="$targetnametoken$.exe" EntryPoint="DuckStation.App">
+      <uap:VisualElements DisplayName="DuckStation" Description="A project for a C++/WinRT Universal Windows Platform (UWP) app directly implementing CoreApplication"
+        Square150x150Logo="Assets\Square150x150Logo.png" Square44x44Logo="Assets\Square44x44Logo.png" BackgroundColor="transparent">
+        <uap:SplashScreen Image="Assets\SplashScreen.png" />
+        <uap:DefaultTile Square71x71Logo="Assets\SmallTile.png" Wide310x150Logo="Assets\WideTile.png" Square310x310Logo="Assets\LargeTile.png"/>
+      </uap:VisualElements>
+      <Extensions>
+        <uap:Extension Category="windows.fileTypeAssociation">
+          <uap:FileTypeAssociation Name="duckstation-disc-images">
+            <uap:SupportedFileTypes>
+              <uap:FileType ContentType="application/x-cue">.cue</uap:FileType>
+              <uap:FileType ContentType="application/x-mame-chd">.chd</uap:FileType>
+              <uap:FileType ContentType="application/x-ecm">.ecm</uap:FileType>
+              <uap:FileType ContentType="application/x-iso9660-image">.iso</uap:FileType>
+              <uap:FileType ContentType="application/x-mds">.mds</uap:FileType>
+              <uap:FileType ContentType="application/x-psexe">.psexe</uap:FileType>
+              <uap:FileType ContentType="application/x-psf">.psf</uap:FileType>
+              <uap:FileType ContentType="application/x-psf">.minipsf</uap:FileType>
+              <uap:FileType ContentType="audio/x-mpegurl">.m3u</uap:FileType>
+            </uap:SupportedFileTypes>
+            <uap:DisplayName>DuckStation Disc Image</uap:DisplayName>
+            <uap:Logo>Assets\duck_128.png</uap:Logo>
+          </uap:FileTypeAssociation>
+        </uap:Extension>
+      </Extensions>
+    </Application>
+  </Applications>
+  <Capabilities>
+    <Capability Name="internetClient" />
+    <Capability Name="codeGeneration"/>
+    <uap:Capability Name="removableStorage"/>
+  </Capabilities>
+</Package>

src/duckstation-uwp/PropertySheet.props

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ImportGroup Label="PropertySheets" />
+  <PropertyGroup Label="UserMacros" />
+  <!--
+    To customize common C++/WinRT project properties: 
+    * right-click the project node
+    * expand the Common Properties item
+    * select the C++/WinRT property page
+
+    For more advanced scenarios, and complete documentation, please see:
+    https://github.com/Microsoft/cppwinrt/tree/master/nuget 
+    -->
+  <PropertyGroup />
+  <ItemDefinitionGroup />
+</Project>

src/duckstation-uwp/duckstation-uwp.vcxproj

@@ -0,0 +1,211 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="..\..\dep\msvc\vsprops\Configurations.props" />
+  <PropertyGroup Label="Globals">
+    <CppWinRTOptimized>true</CppWinRTOptimized>
+    <CppWinRTRootNamespaceAutoMerge>false</CppWinRTRootNamespaceAutoMerge>
+    <MinimalCoreWin>true</MinimalCoreWin>
+    <ProjectGuid>{e2a6cea9-9537-4c61-b637-81f1f17ef638}</ProjectGuid>
+    <ProjectName>duckstation-uwp</ProjectName>
+    <RootNamespace>DuckStationUWP</RootNamespace>
+    <DefaultLanguage>en-US</DefaultLanguage>
+    <MinimumVisualStudioVersion>15.0</MinimumVisualStudioVersion>
+    <AppContainerApplication>true</AppContainerApplication>
+    <ApplicationType>Windows Store</ApplicationType>
+    <ApplicationTypeRevision>10.0</ApplicationTypeRevision>
+    <WindowsTargetPlatformVersion Condition=" '$(WindowsTargetPlatformVersion)' == '' ">10.0.19041.0</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformMinVersion>10.0.17134.0</WindowsTargetPlatformMinVersion>
+    <CppWinRTGenerateWindowsMetadata>false</CppWinRTGenerateWindowsMetadata>
+    <CppWinRTOptimized>true</CppWinRTOptimized>
+    <CppWinRTRootNamespaceAutoMerge>false</CppWinRTRootNamespaceAutoMerge>
+  </PropertyGroup>
+  <PropertyGroup>
+    <IntDir>$(SolutionDir)build\$(Configuration)-$(Platform)\$(ProjectName)\</IntDir>
+    <OutDir>$(SolutionDir)build\$(Configuration)-$(Platform)\$(ProjectName)\</OutDir>
+    <GenerateProjectSpecificOutputFolder>false</GenerateProjectSpecificOutputFolder>
+    <TargetName>$(ProjectName)</TargetName>
+    <GenerateAppInstallerFile>False</GenerateAppInstallerFile>
+    <AppxPackageSigningEnabled>True</AppxPackageSigningEnabled>
+    <PackageCertificateKeyFile>duckstation-uwp.pfx</PackageCertificateKeyFile>
+    <AppxPackageSigningTimestampDigestAlgorithm>SHA256</AppxPackageSigningTimestampDigestAlgorithm>
+    <AppxAutoIncrementPackageRevision>False</AppxAutoIncrementPackageRevision>
+    <AppxSymbolPackageEnabled>False</AppxSymbolPackageEnabled>
+    <GenerateTestArtifacts>True</GenerateTestArtifacts>
+    <AppxBundle>Always</AppxBundle>
+    <AppxBundlePlatforms>x64</AppxBundlePlatforms>
+    <HoursBetweenUpdateChecks>0</HoursBetweenUpdateChecks>
+  </PropertyGroup>
+  <Import Project="..\..\dep\msvc\vsprops\Toolkit.props" />
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="PropertySheets">
+    <Import Project="PropertySheet.props" />
+  </ImportGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <WarningLevel>Level4</WarningLevel>
+      <AdditionalOptions>%(AdditionalOptions) /bigobj</AdditionalOptions>
+      <DisableSpecificWarnings>
+      </DisableSpecificWarnings>
+      <PreprocessorDefinitions>WIN32_LEAN_AND_MEAN;WINRT_LEAN_AND_MEAN;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+    <Link>
+      <GenerateWindowsMetadata>false</GenerateWindowsMetadata>
+    </Link>
+  </ItemDefinitionGroup>
+  <Import Project="..\..\dep\msvc\vsprops\Base.props" />
+  <ItemGroup>
+    <AppxManifest Include="Package.appxmanifest">
+      <SubType>Designer</SubType>
+    </AppxManifest>
+  </ItemGroup>
+  <ItemGroup>
+    <Image Include="Assets\duck_128.png" />
+    <Image Include="Assets\LargeTile.scale-100.png" />
+    <Image Include="Assets\LargeTile.scale-125.png" />
+    <Image Include="Assets\LargeTile.scale-150.png" />
+    <Image Include="Assets\LargeTile.scale-200.png" />
+    <Image Include="Assets\LargeTile.scale-400.png" />
+    <Image Include="Assets\LockScreenLogo.scale-200.png" />
+    <Image Include="Assets\SmallTile.scale-100.png" />
+    <Image Include="Assets\SmallTile.scale-125.png" />
+    <Image Include="Assets\SmallTile.scale-150.png" />
+    <Image Include="Assets\SmallTile.scale-200.png" />
+    <Image Include="Assets\SmallTile.scale-400.png" />
+    <Image Include="Assets\SplashScreen.scale-100.png" />
+    <Image Include="Assets\SplashScreen.scale-125.png" />
+    <Image Include="Assets\SplashScreen.scale-150.png" />
+    <Image Include="Assets\SplashScreen.scale-200.png" />
+    <Image Include="Assets\SplashScreen.scale-400.png" />
+    <Image Include="Assets\Square150x150Logo.scale-100.png" />
+    <Image Include="Assets\Square150x150Logo.scale-125.png" />
+    <Image Include="Assets\Square150x150Logo.scale-150.png" />
+    <Image Include="Assets\Square150x150Logo.scale-200.png" />
+    <Image Include="Assets\Square150x150Logo.scale-400.png" />
+    <Image Include="Assets\Square44x44Logo.altform-lightunplated_targetsize-16.png" />
+    <Image Include="Assets\Square44x44Logo.altform-lightunplated_targetsize-24.png" />
+    <Image Include="Assets\Square44x44Logo.altform-lightunplated_targetsize-256.png" />
+    <Image Include="Assets\Square44x44Logo.altform-lightunplated_targetsize-32.png" />
+    <Image Include="Assets\Square44x44Logo.altform-lightunplated_targetsize-48.png" />
+    <Image Include="Assets\Square44x44Logo.altform-unplated_targetsize-16.png" />
+    <Image Include="Assets\Square44x44Logo.altform-unplated_targetsize-256.png" />
+    <Image Include="Assets\Square44x44Logo.altform-unplated_targetsize-32.png" />
+    <Image Include="Assets\Square44x44Logo.altform-unplated_targetsize-48.png" />
+    <Image Include="Assets\Square44x44Logo.scale-100.png" />
+    <Image Include="Assets\Square44x44Logo.scale-125.png" />
+    <Image Include="Assets\Square44x44Logo.scale-150.png" />
+    <Image Include="Assets\Square44x44Logo.scale-200.png" />
+    <Image Include="Assets\Square44x44Logo.scale-400.png" />
+    <Image Include="Assets\Square44x44Logo.targetsize-16.png" />
+    <Image Include="Assets\Square44x44Logo.targetsize-24.png" />
+    <Image Include="Assets\Square44x44Logo.targetsize-24_altform-unplated.png" />
+    <Image Include="Assets\Square44x44Logo.targetsize-256.png" />
+    <Image Include="Assets\Square44x44Logo.targetsize-32.png" />
+    <Image Include="Assets\Square44x44Logo.targetsize-48.png" />
+    <Image Include="Assets\StoreLogo.scale-100.png" />
+    <Image Include="Assets\StoreLogo.scale-125.png" />
+    <Image Include="Assets\StoreLogo.scale-150.png" />
+    <Image Include="Assets\StoreLogo.scale-200.png" />
+    <Image Include="Assets\StoreLogo.scale-400.png" />
+    <Image Include="Assets\Wide310x150Logo.scale-200.png" />
+    <Image Include="Assets\WideTile.scale-100.png" />
+    <Image Include="Assets\WideTile.scale-125.png" />
+    <Image Include="Assets\WideTile.scale-150.png" />
+    <Image Include="Assets\WideTile.scale-200.png" />
+    <Image Include="Assets\WideTile.scale-400.png" />
+    <Image Include="resources\address-book-new.png" />
+    <Image Include="resources\applications-system.png" />
+    <Image Include="resources\duck.png" />
+    <Image Include="resources\flag-eu.png" />
+    <Image Include="resources\flag-jp.png" />
+    <Image Include="resources\flag-uc.png" />
+    <Image Include="resources\media-cdrom.png" />
+    <Image Include="resources\multimedia-player.png" />
+    <Image Include="resources\star-0.png" />
+    <Image Include="resources\star-1.png" />
+    <Image Include="resources\star-2.png" />
+    <Image Include="resources\star-3.png" />
+    <Image Include="resources\star-4.png" />
+    <Image Include="resources\star-5.png" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="uwp_host_interface.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="database\gamedb.json">
+      <DeploymentContent>true</DeploymentContent>
+    </None>
+    <None Include="database\gamesettings.ini">
+      <DeploymentContent>true</DeploymentContent>
+    </None>
+    <None Include="duckstation-uwp.pfx" />
+    <None Include="inputprofiles\DualShock 4.ini">
+      <DeploymentContent>true</DeploymentContent>
+    </None>
+    <None Include="inputprofiles\Keyboard (No Numpad).ini">
+      <DeploymentContent>true</DeploymentContent>
+    </None>
+    <None Include="inputprofiles\Keyboard.ini">
+      <DeploymentContent>true</DeploymentContent>
+    </None>
+    <None Include="inputprofiles\PlayStation Classic Controller.ini">
+      <DeploymentContent>true</DeploymentContent>
+    </None>
+    <None Include="inputprofiles\Xbox Controller.ini">
+      <DeploymentContent>true</DeploymentContent>
+    </None>
+    <None Include="packages.config" />
+    <None Include="PropertySheet.props" />
+    <None Include="shaders\Cccalibrator.glsl">
+      <DeploymentContent>true</DeploymentContent>
+    </None>
+    <None Include="shaders\dolphinfx\bloom.glsl">
+      <DeploymentContent>true</DeploymentContent>
+    </None>
+    <None Include="shaders\dolphinfx\celshading.glsl">
+      <DeploymentContent>true</DeploymentContent>
+    </None>
+    <None Include="shaders\dolphinfx\scanlines.glsl">
+      <DeploymentContent>true</DeploymentContent>
+    </None>
+    <None Include="shaders\simple-brightness.glsl">
+      <DeploymentContent>true</DeploymentContent>
+    </None>
+    <None Include="shaders\simple-gamma.glsl">
+      <DeploymentContent>true</DeploymentContent>
+    </None>
+    <None Include="shaders\simple-sharpen.glsl">
+      <DeploymentContent>true</DeploymentContent>
+    </None>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="uwp_host_interface.h" />
+    <ClInclude Include="uwp_key_map.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <Font Include="resources\fa-solid-900.ttf" />
+  </ItemGroup>
+  <ItemGroup>
+    <Text Include="database\chtdb.txt" />
+    <Text Include="database\gamecontrollerdb.txt" />
+  </ItemGroup>
+  <ItemGroup>
+    <Xml Include="database\compatibility.xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <CommonDataFiles Include="$(SolutionDir)data\**\*.*">
+      <InProject>false</InProject>
+    </CommonDataFiles>
+  </ItemGroup>
+  <Target Name="CopyCommonDataFiles" BeforeTargets="PrepareForBuild" Inputs="@(CommonDataFiles)" Outputs="@(CommonDataFiles -> '$(ProjectDir)%(RecursiveDir)%(Filename)%(Extension)')">
+    <Message Text="Copying common data files" Importance="High" />
+    <Copy SourceFiles="@(CommonDataFiles)" DestinationFolder="$(ProjectDir)\%(RecursiveDir)" SkipUnchangedFiles="true" />
+  </Target>
+  <Import Project="..\frontend-common\frontend-common.props" />
+  <ItemDefinitionGroup>
+    <Link>
+      <AdditionalDependencies>$(RootBuildDir)frontend-common\frontend-common.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
+  <Import Project="..\..\dep\msvc\vsprops\Targets.props" />
+</Project>

src/duckstation-uwp/duckstation-uwp.vcxproj.filters

@@ -0,0 +1,304 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="uwp_host_interface.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <Image Include="Assets\Wide310x150Logo.scale-200.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square150x150Logo.scale-200.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square44x44Logo.targetsize-24_altform-unplated.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square44x44Logo.scale-200.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\SplashScreen.scale-200.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\LockScreenLogo.scale-200.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\duck_128.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\SmallTile.scale-100.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\SmallTile.scale-125.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\SmallTile.scale-150.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\SmallTile.scale-200.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\SmallTile.scale-400.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square150x150Logo.scale-100.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square150x150Logo.scale-125.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square150x150Logo.scale-150.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square150x150Logo.scale-400.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\WideTile.scale-100.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\WideTile.scale-125.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\WideTile.scale-150.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\WideTile.scale-200.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\WideTile.scale-400.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\LargeTile.scale-100.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\LargeTile.scale-125.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\LargeTile.scale-150.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\LargeTile.scale-200.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\LargeTile.scale-400.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square44x44Logo.scale-100.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square44x44Logo.scale-125.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square44x44Logo.scale-150.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square44x44Logo.scale-400.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square44x44Logo.targetsize-16.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square44x44Logo.targetsize-24.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square44x44Logo.targetsize-32.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square44x44Logo.targetsize-48.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square44x44Logo.targetsize-256.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square44x44Logo.altform-unplated_targetsize-16.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square44x44Logo.altform-unplated_targetsize-32.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square44x44Logo.altform-unplated_targetsize-48.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square44x44Logo.altform-unplated_targetsize-256.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square44x44Logo.altform-lightunplated_targetsize-16.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square44x44Logo.altform-lightunplated_targetsize-24.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square44x44Logo.altform-lightunplated_targetsize-32.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square44x44Logo.altform-lightunplated_targetsize-48.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\Square44x44Logo.altform-lightunplated_targetsize-256.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\SplashScreen.scale-100.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\SplashScreen.scale-125.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\SplashScreen.scale-150.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\SplashScreen.scale-400.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\StoreLogo.scale-100.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\StoreLogo.scale-125.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\StoreLogo.scale-150.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\StoreLogo.scale-200.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\StoreLogo.scale-400.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="resources\address-book-new.png">
+      <Filter>Data\resources</Filter>
+    </Image>
+    <Image Include="resources\applications-system.png">
+      <Filter>Data\resources</Filter>
+    </Image>
+    <Image Include="resources\duck.png">
+      <Filter>Data\resources</Filter>
+    </Image>
+    <Image Include="resources\flag-eu.png">
+      <Filter>Data\resources</Filter>
+    </Image>
+    <Image Include="resources\flag-jp.png">
+      <Filter>Data\resources</Filter>
+    </Image>
+    <Image Include="resources\flag-uc.png">
+      <Filter>Data\resources</Filter>
+    </Image>
+    <Image Include="resources\media-cdrom.png">
+      <Filter>Data\resources</Filter>
+    </Image>
+    <Image Include="resources\multimedia-player.png">
+      <Filter>Data\resources</Filter>
+    </Image>
+    <Image Include="resources\star-0.png">
+      <Filter>Data\resources</Filter>
+    </Image>
+    <Image Include="resources\star-1.png">
+      <Filter>Data\resources</Filter>
+    </Image>
+    <Image Include="resources\star-2.png">
+      <Filter>Data\resources</Filter>
+    </Image>
+    <Image Include="resources\star-3.png">
+      <Filter>Data\resources</Filter>
+    </Image>
+    <Image Include="resources\star-4.png">
+      <Filter>Data\resources</Filter>
+    </Image>
+    <Image Include="resources\star-5.png">
+      <Filter>Data\resources</Filter>
+    </Image>
+  </ItemGroup>
+  <ItemGroup>
+    <AppxManifest Include="Package.appxmanifest" />
+  </ItemGroup>
+  <ItemGroup>
+    <Filter Include="Assets">
+      <UniqueIdentifier>{db9086fe-bacc-4437-8272-1aa6642082db}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Data">
+      <UniqueIdentifier>{fa7724ab-a364-49f2-9cdb-11307aa3f63e}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Data\resources">
+      <UniqueIdentifier>{8eda719e-58c6-484f-b00f-90ee69cd6cb5}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Data\shaders">
+      <UniqueIdentifier>{1d471d6d-942e-4e06-9b74-36c5620c9d43}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Data\inputprofiles">
+      <UniqueIdentifier>{bf7c6843-57df-4e82-bf4e-7ffea724e92d}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Data\database">
+      <UniqueIdentifier>{26b9c7e0-8acd-44be-848e-7da8e32238fa}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Data\shaders\dolphinfx">
+      <UniqueIdentifier>{1c1f164b-4184-422c-8d95-9c4cbb6a21eb}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="PropertySheet.props" />
+    <None Include="packages.config" />
+    <None Include="database\gamedb.json">
+      <Filter>Data\database</Filter>
+    </None>
+    <None Include="database\gamesettings.ini">
+      <Filter>Data\database</Filter>
+    </None>
+    <None Include="shaders\Cccalibrator.glsl">
+      <Filter>Data\shaders</Filter>
+    </None>
+    <None Include="shaders\simple-brightness.glsl">
+      <Filter>Data\shaders</Filter>
+    </None>
+    <None Include="shaders\simple-gamma.glsl">
+      <Filter>Data\shaders</Filter>
+    </None>
+    <None Include="shaders\simple-sharpen.glsl">
+      <Filter>Data\shaders</Filter>
+    </None>
+    <None Include="shaders\dolphinfx\bloom.glsl">
+      <Filter>Data\shaders\dolphinfx</Filter>
+    </None>
+    <None Include="shaders\dolphinfx\celshading.glsl">
+      <Filter>Data\shaders\dolphinfx</Filter>
+    </None>
+    <None Include="shaders\dolphinfx\scanlines.glsl">
+      <Filter>Data\shaders\dolphinfx</Filter>
+    </None>
+    <None Include="inputprofiles\Keyboard.ini">
+      <Filter>Data\inputprofiles</Filter>
+    </None>
+    <None Include="inputprofiles\PlayStation Classic Controller.ini">
+      <Filter>Data\inputprofiles</Filter>
+    </None>
+    <None Include="inputprofiles\Xbox Controller.ini">
+      <Filter>Data\inputprofiles</Filter>
+    </None>
+    <None Include="inputprofiles\DualShock 4.ini">
+      <Filter>Data\inputprofiles</Filter>
+    </None>
+    <None Include="inputprofiles\Keyboard (No Numpad).ini">
+      <Filter>Data\inputprofiles</Filter>
+    </None>
+    <None Include="duckstation-uwp.pfx" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="uwp_host_interface.h" />
+    <ClInclude Include="uwp_key_map.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <Font Include="resources\fa-solid-900.ttf">
+      <Filter>Data\resources</Filter>
+    </Font>
+  </ItemGroup>
+  <ItemGroup>
+    <Text Include="database\gamecontrollerdb.txt">
+      <Filter>Data\database</Filter>
+    </Text>
+    <Text Include="database\chtdb.txt">
+      <Filter>Data\database</Filter>
+    </Text>
+  </ItemGroup>
+  <ItemGroup>
+    <Xml Include="database\compatibility.xml">
+      <Filter>Data\database</Filter>
+    </Xml>
+  </ItemGroup>
+</Project>

src/duckstation-uwp/packages.config

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="Microsoft.Windows.CppWinRT" version="2.0.210505.3" targetFramework="native" />
+</packages>

src/duckstation-uwp/uwp_host_interface.cpp

@@ -0,0 +1,753 @@
+#include "uwp_host_interface.h"
+#include "common/assert.h"
+#include "common/byte_stream.h"
+#include "common/file_system.h"
+#include "common/log.h"
+#include "common/string_util.h"
+#include "core/controller.h"
+#include "core/gpu.h"
+#include "core/host_display.h"
+#include "core/system.h"
+#include "frontend-common/controller_interface.h"
+#include "frontend-common/d3d11_host_display.h"
+#include "frontend-common/d3d12_host_display.h"
+#include "frontend-common/fullscreen_ui.h"
+#include "frontend-common/icon.h"
+#include "frontend-common/imgui_styles.h"
+#include "frontend-common/ini_settings_interface.h"
+#include "imgui.h"
+#include "imgui_internal.h"
+#include "imgui_stdlib.h"
+#include "uwp_key_map.h"
+#include <cinttypes>
+#include <cmath>
+Log_SetChannel(UWPHostInterface);
+
+#include <gamingdeviceinformation.h>
+#include <winrt/Windows.Graphics.Display.Core.h>
+#include <winrt/Windows.Graphics.Display.h>
+#include <winrt/Windows.Storage.h>
+#include <winrt/Windows.System.Profile.h>
+
+static bool IsRunningOnXbox()
+{
+  const auto version_info = winrt::Windows::System::Profile::AnalyticsInfo::VersionInfo();
+  const auto device_family = version_info.DeviceFamily();
+  return (device_family == L"Windows.Xbox");
+}
+
+UWPHostInterface::UWPHostInterface() = default;
+
+UWPHostInterface::~UWPHostInterface() = default;
+
+winrt::Windows::ApplicationModel::Core::IFrameworkView UWPHostInterface::CreateView()
+{
+  return *this;
+}
+
+void UWPHostInterface::Initialize(const winrt::Windows::ApplicationModel::Core::CoreApplicationView& a)
+{
+  winrt::Windows::ApplicationModel::Core::CoreApplication::Suspending({this, &UWPHostInterface::OnSuspending});
+  winrt::Windows::ApplicationModel::Core::CoreApplication::Resuming({this, &UWPHostInterface::OnResuming});
+}
+
+void UWPHostInterface::Load(const winrt::hstring&) {}
+
+void UWPHostInterface::Uninitialize() {}
+
+const char* UWPHostInterface::GetFrontendName() const
+{
+  return "DuckStation UWP Frontend";
+}
+
+bool UWPHostInterface::Initialize()
+{
+  Log::SetDebugOutputParams(true, nullptr, LOGLEVEL_DEBUG);
+  if (!SetDirectories())
+    return false;
+
+  m_settings_interface = std::make_unique<INISettingsInterface>(GetSettingsFileName());
+  m_flags.force_fullscreen_ui = true;
+  m_fullscreen_ui_enabled = true;
+
+  if (!CommonHostInterface::Initialize())
+    return false;
+
+  SetImGuiKeyMap();
+
+  const bool start_fullscreen = m_flags.start_fullscreen || g_settings.start_fullscreen;
+  if (!CreateDisplay(start_fullscreen))
+  {
+    Log_ErrorPrintf("Failed to create host display");
+    return false;
+  }
+
+  return true;
+}
+
+void UWPHostInterface::Shutdown()
+{
+  DestroyDisplay();
+
+  CommonHostInterface::Shutdown();
+}
+
+void UWPHostInterface::SetDefaultSettings(SettingsInterface& si)
+{
+  CommonHostInterface::SetDefaultSettings(si);
+
+  si.SetStringValue("CPU", "FastmemMode", "LUT");
+  si.SetStringValue("Main", "ControllerBackend", "XInput");
+  si.AddToStringList("GameList", "RecursivePaths", GetUserDirectoryRelativePath("games").c_str());
+
+  if (IsRunningOnXbox())
+    SetDefaultSettingsForXbox(si);
+}
+
+bool UWPHostInterface::CreateDisplay(bool fullscreen)
+{
+  Assert(!m_display);
+
+  m_appview = winrt::Windows::UI::ViewManagement::ApplicationView::GetForCurrentView();
+  m_appview.PreferredLaunchWindowingMode(
+    fullscreen ? winrt::Windows::UI::ViewManagement::ApplicationViewWindowingMode::FullScreen :
+                 winrt::Windows::UI::ViewManagement::ApplicationViewWindowingMode::Auto);
+
+  m_window.Activate();
+
+  const auto di = winrt::Windows::Graphics::Display::DisplayInformation::GetForCurrentView();
+  const auto hdi = winrt::Windows::Graphics::Display::Core::HdmiDisplayInformation::GetForCurrentView();
+  const s32 resolution_scale = static_cast<s32>(di.ResolutionScale());
+
+  WindowInfo wi;
+  wi.type = WindowInfo::Type::WinRT;
+  wi.window_handle = winrt::get_unknown(m_window);
+  wi.surface_scale = static_cast<float>(resolution_scale) / 100.0f;
+  wi.surface_width = static_cast<u32>(m_window.Bounds().Width * wi.surface_scale);
+  wi.surface_height = static_cast<s32>(m_window.Bounds().Height * wi.surface_scale);
+  if (hdi)
+  {
+    try
+    {
+      const auto dm = hdi.GetCurrentDisplayMode();
+      const u32 hdmi_width = dm.ResolutionWidthInRawPixels();
+      const u32 hdmi_height = dm.ResolutionHeightInRawPixels();
+      wi.surface_refresh_rate = static_cast<float>(dm.RefreshRate());
+      Log_InfoPrintf("HDMI mode: %ux%u @ %.2f hz", hdmi_width, hdmi_height, wi.surface_refresh_rate);
+
+      // If we're running on Xbox, use the HDMI mode instead of the CoreWindow size.
+      // In UWP, the CoreWindow is always 1920x1080, even when running at 4K.
+      if (IsRunningOnXbox())
+      {
+        GAMING_DEVICE_MODEL_INFORMATION gdinfo = {};
+        if (SUCCEEDED(GetGamingDeviceModelInformation(&gdinfo)) && gdinfo.vendorId == GAMING_DEVICE_VENDOR_ID_MICROSOFT)
+        {
+          if (gdinfo.deviceId != GAMING_DEVICE_DEVICE_ID_XBOX_ONE)
+          {
+            Log_InfoPrintf("Overriding core window size %ux%u with HDMI size %ux%u", wi.surface_width,
+                           wi.surface_height, hdmi_width, hdmi_height);
+            wi.surface_scale *= static_cast<float>(hdmi_width) / static_cast<float>(wi.surface_width);
+            wi.surface_width = hdmi_width;
+            wi.surface_height = hdmi_height;
+          }
+        }
+      }
+    }
+    catch (const winrt::hresult_error&)
+    {
+    }
+  }
+
+  if (g_settings.gpu_renderer == GPURenderer::HardwareD3D12)
+    m_display = std::make_unique<FrontendCommon::D3D12HostDisplay>();
+  else
+    m_display = std::make_unique<FrontendCommon::D3D11HostDisplay>();
+
+  if (!m_display->CreateRenderDevice(wi, g_settings.gpu_adapter, g_settings.gpu_use_debug_device,
+                                     g_settings.gpu_threaded_presentation) ||
+      !m_display->InitializeRenderDevice(GetShaderCacheBasePath(), g_settings.gpu_use_debug_device,
+                                         g_settings.gpu_threaded_presentation) ||
+      !CreateHostDisplayResources())
+  {
+    m_display->DestroyRenderDevice();
+    m_display.reset();
+    ReportError("Failed to create/initialize display render device");
+    return false;
+  }
+
+  if (!CreateHostDisplayResources())
+    Log_WarningPrint("Failed to create host display resources");
+
+  Log_InfoPrintf("Host display initialized at %ux%u resolution", m_display->GetWindowWidth(),
+                 m_display->GetWindowHeight());
+  return true;
+}
+
+void UWPHostInterface::DestroyDisplay()
+{
+  ReleaseHostDisplayResources();
+
+  if (m_display)
+    m_display->DestroyRenderDevice();
+
+  m_display.reset();
+}
+
+bool UWPHostInterface::AcquireHostDisplay()
+{
+  return true;
+}
+
+void UWPHostInterface::ReleaseHostDisplay()
+{
+  // restore vsync, since we don't want to burn cycles at the menu
+  m_display->SetVSync(true);
+}
+
+void UWPHostInterface::PollAndUpdate()
+{
+  CommonHostInterface::PollAndUpdate();
+
+  ImGuiIO& io = ImGui::GetIO();
+  if (m_text_input_requested != io.WantTextInput)
+  {
+    const bool activate = io.WantTextInput;
+    Log_InfoPrintf("%s input pane...", activate ? "showing" : "hiding");
+
+    m_text_input_requested = activate;
+    m_dispatcher.RunAsync(winrt::Windows::UI::Core::CoreDispatcherPriority::Normal, [this, activate]() {
+      const auto input_pane = winrt::Windows::UI::ViewManagement::InputPane::GetForCurrentView();
+      if (input_pane)
+      {
+        if (activate)
+          input_pane.TryShow();
+        else
+          input_pane.TryHide();
+      }
+    });
+  }
+}
+
+void UWPHostInterface::RequestExit()
+{
+  m_shutdown_flag.store(true);
+  m_dispatcher.RunAsync(winrt::Windows::UI::Core::CoreDispatcherPriority::Normal,
+                        [this]() { winrt::Windows::ApplicationModel::Core::CoreApplication::Exit(); });
+}
+
+void UWPHostInterface::Run()
+{
+  if (!Initialize())
+  {
+    Shutdown();
+    return;
+  }
+
+  m_emulation_thread = std::thread(&UWPHostInterface::EmulationThreadEntryPoint, this);
+
+  m_dispatcher.ProcessEvents(winrt::Windows::UI::Core::CoreProcessEventsOption::ProcessUntilQuit);
+  m_shutdown_flag.store(true);
+  m_emulation_thread.join();
+}
+
+void UWPHostInterface::EmulationThreadEntryPoint()
+{
+  if (m_fullscreen_ui_enabled)
+  {
+    FullscreenUI::SetDebugMenuAllowed(true);
+    FullscreenUI::QueueGameListRefresh();
+  }
+
+  // process events to pick up controllers before updating input map
+  PollAndUpdate();
+  UpdateInputMap();
+
+  if (m_was_running_on_suspend && ShouldSaveResumeState())
+    ResumeSystemFromMostRecentState();
+
+  while (!m_shutdown_flag.load())
+  {
+    RunCallbacks();
+    PollAndUpdate();
+
+    ImGui::NewFrame();
+
+    if (System::IsRunning())
+    {
+      if (m_display_all_frames)
+        System::RunFrame();
+      else
+        System::RunFrames();
+
+      UpdateControllerMetaState();
+      if (m_frame_step_request)
+      {
+        m_frame_step_request = false;
+        PauseSystem(true);
+      }
+    }
+
+    // rendering
+    {
+      DrawImGuiWindows();
+      ImGui::Render();
+      ImGui::EndFrame();
+
+      m_display->Render();
+
+      if (System::IsRunning())
+      {
+        System::UpdatePerformanceCounters();
+
+        if (m_throttler_enabled)
+          System::Throttle();
+      }
+    }
+  }
+
+  // Save state on exit so it can be resumed
+  if (!System::IsShutdown())
+    PowerOffSystem(ShouldSaveResumeState());
+}
+
+void UWPHostInterface::ReportMessage(const char* message)
+{
+  Log_InfoPrint(message);
+  AddOSDMessage(message, 10.0f);
+}
+
+void UWPHostInterface::ReportError(const char* message)
+{
+  Log_ErrorPrint(message);
+
+  if (!m_display)
+    return;
+
+  const bool was_in_frame = GImGui->FrameCount != GImGui->FrameCountEnded;
+  if (was_in_frame)
+    ImGui::EndFrame();
+
+  bool done = false;
+  while (!done)
+  {
+    RunCallbacks();
+    PollAndUpdate();
+    if (m_fullscreen_ui_enabled)
+      FullscreenUI::SetImGuiNavInputs();
+
+    ImGui::NewFrame();
+    done = FullscreenUI::DrawErrorWindow(message);
+    ImGui::EndFrame();
+    m_display->Render();
+  }
+
+  if (was_in_frame)
+    ImGui::NewFrame();
+}
+
+bool UWPHostInterface::ConfirmMessage(const char* message)
+{
+  Log_InfoPrintf("Confirm: %s", message);
+
+  if (!m_display)
+    return true;
+
+  const bool was_in_frame = GImGui->FrameCount != GImGui->FrameCountEnded;
+  if (was_in_frame)
+    ImGui::EndFrame();
+
+  bool done = false;
+  bool result = true;
+  while (!done)
+  {
+    RunCallbacks();
+    PollAndUpdate();
+    if (m_fullscreen_ui_enabled)
+      FullscreenUI::SetImGuiNavInputs();
+
+    ImGui::NewFrame();
+    done = FullscreenUI::DrawConfirmWindow(message, &result);
+    ImGui::EndFrame();
+    m_display->Render();
+  }
+
+  if (was_in_frame)
+    ImGui::NewFrame();
+
+  return result;
+}
+
+void UWPHostInterface::RunLater(std::function<void()> callback)
+{
+  std::unique_lock<std::mutex> lock(m_queued_callbacks_lock);
+  m_queued_callbacks.push_back(std::move(callback));
+}
+
+bool UWPHostInterface::IsFullscreen() const
+{
+  return m_appview.IsFullScreenMode();
+}
+
+bool UWPHostInterface::SetFullscreen(bool enabled)
+{
+  m_dispatcher.RunAsync(winrt::Windows::UI::Core::CoreDispatcherPriority::Normal, [this, enabled]() {
+    if (enabled)
+      m_appview.TryEnterFullScreenMode();
+    else
+      m_appview.ExitFullScreenMode();
+  });
+
+  return true;
+}
+
+void UWPHostInterface::RunCallbacks()
+{
+  std::unique_lock<std::mutex> lock(m_queued_callbacks_lock);
+
+  while (!m_queued_callbacks.empty())
+  {
+    auto callback = std::move(m_queued_callbacks.front());
+    m_queued_callbacks.pop_front();
+    lock.unlock();
+    callback();
+    lock.lock();
+  }
+}
+
+void UWPHostInterface::SetWindow(const winrt::Windows::UI::Core::CoreWindow& window)
+{
+  m_window = window;
+  m_dispatcher = m_window.Dispatcher();
+
+  window.Closed({this, &UWPHostInterface::OnClosed});
+  window.SizeChanged({this, &UWPHostInterface::OnSizeChanged});
+  window.KeyDown({this, &UWPHostInterface::OnKeyDown});
+  window.KeyUp({this, &UWPHostInterface::OnKeyUp});
+  window.CharacterReceived({this, &UWPHostInterface::OnCharacterReceived});
+  window.PointerPressed({this, &UWPHostInterface::OnPointerPressed});
+  window.PointerReleased({this, &UWPHostInterface::OnPointerPressed});
+  window.PointerMoved({this, &UWPHostInterface::OnPointerMoved});
+  window.PointerWheelChanged({this, &UWPHostInterface::OnPointerWheelChanged});
+}
+
+bool UWPHostInterface::SetDirectories()
+{
+  const auto install_location = winrt::Windows::ApplicationModel::Package::Current().InstalledLocation();
+  m_program_directory = StringUtil::WideStringToUTF8String(install_location.Path());
+  if (m_program_directory.empty())
+  {
+    Log_ErrorPrintf("Failed to get install location");
+    return false;
+  }
+
+  Log_InfoPrintf("Program directory: %s", m_program_directory.c_str());
+
+  const auto local_location = winrt::Windows::Storage::ApplicationData::Current().LocalFolder();
+  m_user_directory = StringUtil::WideStringToUTF8String(local_location.Path());
+  if (m_user_directory.empty())
+  {
+    Log_ErrorPrintf("Failed to get user directory");
+    return false;
+  }
+
+  Log_InfoPrintf("User directory: %s", m_user_directory.c_str());
+  return true;
+}
+
+void UWPHostInterface::OnSuspending(const IInspectable&,
+                                    const winrt::Windows::ApplicationModel::SuspendingEventArgs& args)
+{
+  if (IsEmulationThreadRunning())
+  {
+    RunLater([this]() {
+      if (ShouldSaveResumeState())
+        SaveResumeSaveState();
+
+      m_was_running_on_suspend.store(System::IsRunning());
+      PauseSystem(true);
+      m_suspend_sync_event.Signal();
+    });
+
+    m_suspend_sync_event.Wait();
+  }
+}
+
+void UWPHostInterface::OnResuming(const IInspectable&, const IInspectable&)
+{
+  if (IsEmulationThreadRunning())
+  {
+    if (m_was_running_on_suspend.load())
+      RunLater([this]() { PauseSystem(false); });
+  }
+  else
+  {
+    RunLater([this]() {
+      if (ShouldSaveResumeState())
+        ResumeSystemFromMostRecentState();
+    });
+  }
+}
+
+void UWPHostInterface::OnClosed(const IInspectable&, const winrt::Windows::UI::Core::CoreWindowEventArgs& args)
+{
+  if (IsEmulationThreadRunning())
+  {
+    m_shutdown_flag.store(true);
+    m_emulation_thread.join();
+  }
+  args.Handled(true);
+}
+
+void UWPHostInterface::OnSizeChanged(const IInspectable&,
+                                     const winrt::Windows::UI::Core::WindowSizeChangedEventArgs& args)
+{
+  const auto size = args.Size();
+  const s32 width = static_cast<s32>(size.Width * m_display->GetWindowScale());
+  const s32 height = static_cast<s32>(size.Height * m_display->GetWindowScale());
+  if (IsEmulationThreadRunning())
+  {
+    RunLater([this, width, height]() {
+      m_display->ResizeRenderWindow(width, height);
+      OnHostDisplayResized();
+    });
+  }
+
+  args.Handled(true);
+}
+
+void UWPHostInterface::OnKeyDown(const IInspectable&, const winrt::Windows::UI::Core::KeyEventArgs& args)
+{
+  const auto status = args.KeyStatus();
+  if (!status.WasKeyDown && !status.IsKeyReleased && IsEmulationThreadRunning())
+  {
+    const HostKeyCode code = static_cast<HostKeyCode>(args.VirtualKey());
+    RunLater([this, code]() {
+      ImGuiIO& io = ImGui::GetIO();
+      if (code < countof(io.KeysDown))
+        io.KeysDown[code] = true;
+
+      if (!io.WantCaptureKeyboard)
+        HandleHostKeyEvent(code, 0, true);
+    });
+  }
+
+  args.Handled(true);
+}
+
+void UWPHostInterface::OnKeyUp(const IInspectable&, const winrt::Windows::UI::Core::KeyEventArgs& args)
+{
+  const auto status = args.KeyStatus();
+  if (status.WasKeyDown && status.IsKeyReleased && IsEmulationThreadRunning())
+  {
+    const HostKeyCode code = static_cast<HostKeyCode>(args.VirtualKey());
+    RunLater([this, code]() {
+      ImGuiIO& io = ImGui::GetIO();
+      if (code < countof(io.KeysDown))
+        io.KeysDown[code] = false;
+
+      if (!io.WantCaptureKeyboard)
+        HandleHostKeyEvent(code, 0, false);
+    });
+  }
+
+  args.Handled(true);
+}
+
+void UWPHostInterface::OnCharacterReceived(const IInspectable&,
+                                           const winrt::Windows::UI::Core::CharacterReceivedEventArgs& args)
+{
+  if (IsEmulationThreadRunning())
+  {
+    const u32 code = args.KeyCode();
+    RunLater([this, code]() { ImGui::GetIO().AddInputCharacter(code); });
+  }
+
+  args.Handled(true);
+}
+
+void UWPHostInterface::OnPointerPressed(const IInspectable&, const winrt::Windows::UI::Core::PointerEventArgs& args)
+{
+  const auto pointer = args.CurrentPoint();
+  if (pointer.PointerDevice().PointerDeviceType() == winrt::Windows::Devices::Input::PointerDeviceType::Mouse)
+    UpdateMouseButtonState(pointer);
+
+  args.Handled(true);
+}
+
+void UWPHostInterface::OnPointerReleased(const IInspectable&, const winrt::Windows::UI::Core::PointerEventArgs& args)
+{
+  const auto pointer = args.CurrentPoint();
+  if (pointer.PointerDevice().PointerDeviceType() == winrt::Windows::Devices::Input::PointerDeviceType::Mouse)
+    UpdateMouseButtonState(pointer);
+
+  args.Handled(true);
+}
+
+void UWPHostInterface::OnPointerMoved(const IInspectable&, const winrt::Windows::UI::Core::PointerEventArgs& args)
+{
+  const auto pointer = args.CurrentPoint();
+  if (pointer.PointerDevice().PointerDeviceType() == winrt::Windows::Devices::Input::PointerDeviceType::Mouse)
+  {
+    const auto pos = pointer.Position();
+    const float x = pos.X * m_display->GetWindowScale();
+    const float y = pos.Y * m_display->GetWindowScale();
+
+    if (IsEmulationThreadRunning())
+    {
+      RunLater([this, x, y]() {
+        m_display->SetMousePosition(static_cast<s32>(x), static_cast<s32>(y));
+
+        if (ImGui::GetCurrentContext())
+        {
+          ImGuiIO& io = ImGui::GetIO();
+          io.MousePos.x = x;
+          io.MousePos.y = y;
+        }
+      });
+    }
+
+    UpdateMouseButtonState(pointer);
+  }
+
+  args.Handled(true);
+}
+
+void UWPHostInterface::OnPointerWheelChanged(const IInspectable&,
+                                             const winrt::Windows::UI::Core::PointerEventArgs& args)
+{
+  const auto pointer = args.CurrentPoint();
+  const auto properties = pointer.Properties();
+  const s32 delta = properties.MouseWheelDelta();
+  const bool horizontal = properties.IsHorizontalMouseWheel();
+
+  if (IsEmulationThreadRunning())
+  {
+    RunLater([this, delta, horizontal]() {
+      if (ImGui::GetCurrentContext())
+      {
+        ImGuiIO& io = ImGui::GetIO();
+        const float dw = static_cast<float>(std::clamp<s32>(delta, -1, 1));
+        if (horizontal)
+          io.MouseWheelH = dw;
+        else
+          io.MouseWheel = dw;
+      }
+    });
+  }
+
+  args.Handled(true);
+}
+
+void UWPHostInterface::UpdateMouseButtonState(const winrt::Windows::UI::Input::PointerPoint& point)
+{
+  const auto properties = point.Properties();
+  const bool states[3] = {properties.IsLeftButtonPressed(), properties.IsRightButtonPressed(),
+                          properties.IsMiddleButtonPressed()};
+
+  if (IsEmulationThreadRunning())
+  {
+    RunLater([this, states]() {
+      if (!ImGui::GetCurrentContext())
+        return;
+
+      ImGuiIO& io = ImGui::GetIO();
+      for (u32 i = 0; i < countof(states); i++)
+      {
+        if (io.MouseDown[i] == states[i])
+          continue;
+
+        io.MouseDown[i] = states[i];
+        HandleHostMouseEvent(static_cast<HostMouseButton>(i), states[i]);
+      }
+    });
+  }
+}
+
+std::optional<CommonHostInterface::HostKeyCode> UWPHostInterface::GetHostKeyCode(const std::string_view key_code) const
+{
+  for (const auto& it : s_key_map)
+  {
+    if (key_code.compare(it.second) == 0)
+      return static_cast<HostKeyCode>(it.first);
+  }
+
+  return std::nullopt;
+}
+
+const char* UWPHostInterface::GetKeyCodeName(int key_code)
+{
+  const auto it = s_key_map.find(key_code);
+  return (it != s_key_map.end()) ? it->second : nullptr;
+}
+
+void UWPHostInterface::SetImGuiKeyMap()
+{
+  using namespace winrt::Windows::System;
+
+  ImGuiIO& io = ImGui::GetIO();
+  io.KeyMap[ImGuiKey_Tab] = static_cast<int>(VirtualKey::Tab);
+  io.KeyMap[ImGuiKey_LeftArrow] = static_cast<int>(VirtualKey::Left);
+  io.KeyMap[ImGuiKey_RightArrow] = static_cast<int>(VirtualKey::Right);
+  io.KeyMap[ImGuiKey_UpArrow] = static_cast<int>(VirtualKey::Up);
+  io.KeyMap[ImGuiKey_DownArrow] = static_cast<int>(VirtualKey::Down);
+  io.KeyMap[ImGuiKey_PageUp] = static_cast<int>(VirtualKey::PageUp);
+  io.KeyMap[ImGuiKey_PageDown] = static_cast<int>(VirtualKey::PageDown);
+  io.KeyMap[ImGuiKey_Home] = static_cast<int>(VirtualKey::Home);
+  io.KeyMap[ImGuiKey_End] = static_cast<int>(VirtualKey::End);
+  io.KeyMap[ImGuiKey_Insert] = static_cast<int>(VirtualKey::Insert);
+  io.KeyMap[ImGuiKey_Delete] = static_cast<int>(VirtualKey::Delete);
+  io.KeyMap[ImGuiKey_Backspace] = static_cast<int>(VirtualKey::Back);
+  io.KeyMap[ImGuiKey_Space] = static_cast<int>(VirtualKey::Space);
+  io.KeyMap[ImGuiKey_Enter] = static_cast<int>(VirtualKey::Enter);
+  io.KeyMap[ImGuiKey_Escape] = static_cast<int>(VirtualKey::Escape);
+  io.KeyMap[ImGuiKey_A] = static_cast<int>(VirtualKey::A);
+  io.KeyMap[ImGuiKey_C] = static_cast<int>(VirtualKey::C);
+  io.KeyMap[ImGuiKey_V] = static_cast<int>(VirtualKey::V);
+  io.KeyMap[ImGuiKey_X] = static_cast<int>(VirtualKey::X);
+  io.KeyMap[ImGuiKey_Y] = static_cast<int>(VirtualKey::Y);
+  io.KeyMap[ImGuiKey_Z] = static_cast<int>(VirtualKey::Z);
+}
+
+void UWPHostInterface::SetDefaultSettingsForXbox(SettingsInterface& si)
+{
+  si.SetStringValue("GPU", "Renderer", "D3D12");
+
+  si.SetBoolValue("Main", "SyncToHostRefreshRate", true);
+  si.SetBoolValue("Display", "VSync", true);
+  si.SetBoolValue("Display", "DisplayAllFrames", true);
+  si.SetFloatValue("Display", "MaxFPS", 60.0f);
+
+  // Set up an analog controller in port 1.
+  si.SetStringValue("Controller1", "Type", "AnalogController");
+  si.SetStringValue("Controller1", "ButtonUp", "Controller0/Button11");
+  si.SetStringValue("Controller1", "ButtonDown", "Controller0/Button12");
+  si.SetStringValue("Controller1", "ButtonLeft", "Controller0/Button13");
+  si.SetStringValue("Controller1", "ButtonRight", "Controller0/Button14");
+  si.SetStringValue("Controller1", "ButtonStart", "Controller0/Button6");
+  si.SetStringValue("Controller1", "ButtonTriangle", "Controller0/Button3");
+  si.SetStringValue("Controller1", "ButtonCross", "Controller0/Button0");
+  si.SetStringValue("Controller1", "ButtonCircle", "Controller0/Button1");
+  si.SetStringValue("Controller1", "ButtonSquare", "Controller0/Button2");
+  si.SetStringValue("Controller1", "ButtonL1", "Controller0/Button9");
+  si.SetStringValue("Controller1", "ButtonL2", "Controller0/+Axis4");
+  si.SetStringValue("Controller1", "ButtonR1", "Controller0/Button10");
+  si.SetStringValue("Controller1", "ButtonR2", "Controller0/+Axis5");
+  si.SetStringValue("Controller1", "ButtonL3", "Controller0/Button7");
+  si.SetStringValue("Controller1", "ButtonR3", "Controller0/Button8");
+  si.SetStringValue("Controller1", "AxisLeftX", "Controller0/Axis0");
+  si.SetStringValue("Controller1", "AxisLeftY", "Controller0/Axis1");
+  si.SetStringValue("Controller1", "AxisRightX", "Controller0/Axis2");
+  si.SetStringValue("Controller1", "AxisRightY", "Controller0/Axis3");
+  si.SetStringValue("Controller1", "Rumble", "Controller0");
+  si.SetStringValue("Controller1", "ForceAnalogOnReset", "true");
+  si.SetStringValue("Controller1", "AnalogDPadInDigitalMode", "true");
+
+  // Repurpose the select button to open the menu.
+  // Not ideal, but all we can do until we have chords.
+  si.SetStringValue("Hotkeys", "OpenQuickMenu", "Controller0/Button4");
+}
+
+int __stdcall wWinMain(HINSTANCE, HINSTANCE, PWSTR, int)
+{
+  winrt::Windows::ApplicationModel::Core::CoreApplication::Run(winrt::make<UWPHostInterface>());
+}

src/duckstation-uwp/uwp_host_interface.h

@@ -0,0 +1,117 @@
+#pragma once
+#include "common/event.h"
+#include "common/window_info.h"
+#include "common/windows_headers.h"
+#include "core/host_display.h"
+#include "core/host_interface.h"
+#include "frontend-common/common_host_interface.h"
+#include <Unknwn.h>
+#include <array>
+#include <deque>
+#include <functional>
+#include <map>
+#include <memory>
+#include <mutex>
+#include <string>
+#include <thread>
+
+#include <winrt/Windows.ApplicationModel.Core.h>
+#include <winrt/Windows.Devices.Input.h>
+#include <winrt/Windows.Foundation.Collections.h>
+#include <winrt/Windows.Foundation.h>
+#include <winrt/Windows.UI.Composition.h>
+#include <winrt/Windows.UI.Core.h>
+#include <winrt/Windows.UI.Input.h>
+#include <winrt/Windows.UI.ViewManagement.Core.h>
+#include <winrt/Windows.UI.ViewManagement.h>
+#include <winrt/base.h>
+
+class INISettingsInterface;
+
+class UWPHostInterface
+  : public CommonHostInterface,
+    public winrt::implements<UWPHostInterface, winrt::Windows::ApplicationModel::Core::IFrameworkViewSource,
+                             winrt::Windows::ApplicationModel::Core::IFrameworkView>
+{
+public:
+  UWPHostInterface();
+  ~UWPHostInterface();
+
+  const char* GetFrontendName() const override;
+  bool Initialize() override;
+  void Shutdown() override;
+
+  void ReportMessage(const char* message) override;
+  void ReportError(const char* message) override;
+  bool ConfirmMessage(const char* message) override;
+
+  void RunLater(std::function<void()> callback) override;
+
+  bool IsFullscreen() const override;
+  bool SetFullscreen(bool enabled) override;
+
+  winrt::Windows::ApplicationModel::Core::IFrameworkView CreateView();
+  void Initialize(const winrt::Windows::ApplicationModel::Core::CoreApplicationView&);
+  void Load(const winrt::hstring&);
+  void Uninitialize();
+  void Run();
+  void SetWindow(const winrt::Windows::UI::Core::CoreWindow& window);
+
+protected:
+  enum : u32
+  {
+    DEFAULT_WINDOW_WIDTH = 1280,
+    DEFAULT_WINDOW_HEIGHT = 720
+  };
+
+  ALWAYS_INLINE bool IsEmulationThreadRunning() const { return m_emulation_thread.joinable(); }
+
+  void SetDefaultSettings(SettingsInterface& si) override;
+
+  bool AcquireHostDisplay() override;
+  void ReleaseHostDisplay() override;
+
+  void PollAndUpdate() override;
+  void RequestExit() override;
+
+  bool CreateDisplay(bool fullscreen);
+  void DestroyDisplay();
+  void RunCallbacks();
+  void EmulationThreadEntryPoint();
+
+  bool SetDirectories();
+  void OnSuspending(const IInspectable&, const winrt::Windows::ApplicationModel::SuspendingEventArgs& args);
+  void OnResuming(const IInspectable&, const IInspectable&);
+  void OnClosed(const IInspectable&, const winrt::Windows::UI::Core::CoreWindowEventArgs& args);
+  void OnSizeChanged(const IInspectable&, const winrt::Windows::UI::Core::WindowSizeChangedEventArgs& args);
+  void OnKeyDown(const IInspectable&, const winrt::Windows::UI::Core::KeyEventArgs& args);
+  void OnKeyUp(const IInspectable&, const winrt::Windows::UI::Core::KeyEventArgs& args);
+  void OnCharacterReceived(const IInspectable&, const winrt::Windows::UI::Core::CharacterReceivedEventArgs& args);
+  void OnPointerPressed(const IInspectable&, const winrt::Windows::UI::Core::PointerEventArgs& args);
+  void OnPointerReleased(const IInspectable&, const winrt::Windows::UI::Core::PointerEventArgs& args);
+  void OnPointerMoved(const IInspectable&, const winrt::Windows::UI::Core::PointerEventArgs& args);
+  void OnPointerWheelChanged(const IInspectable&, const winrt::Windows::UI::Core::PointerEventArgs& args);
+  void UpdateMouseButtonState(const winrt::Windows::UI::Input::PointerPoint& point);
+
+  std::optional<HostKeyCode> GetHostKeyCode(const std::string_view key_code) const override;
+  const char* GetKeyCodeName(int key_code);
+  void SetImGuiKeyMap();
+
+  void SetDefaultSettingsForXbox(SettingsInterface& si);
+
+  std::deque<std::function<void()>> m_queued_callbacks;
+  std::mutex m_queued_callbacks_lock;
+
+  winrt::Windows::UI::Core::CoreWindow m_window{nullptr};
+  winrt::Windows::UI::Core::CoreDispatcher m_dispatcher{nullptr};
+  winrt::Windows::UI::ViewManagement::ApplicationView m_appview{nullptr};
+
+  std::thread m_emulation_thread;
+  std::atomic_bool m_shutdown_flag{false};
+
+  bool m_text_input_requested = false;
+
+  Common::Event m_suspend_sync_event;
+  std::atomic_bool m_was_running_on_suspend{false};
+  std::atomic_bool m_was_running_on_background{false};
+};

src/duckstation-uwp/uwp_key_map.h

@@ -0,0 +1,149 @@
+#include <map>
+#include <winrt/Windows.System.h>
+
+static const std::map<int, const char*> s_key_map = {
+  {static_cast<int>(winrt::Windows::System::VirtualKey::LeftButton), "LeftButton"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::RightButton), "RightButton"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Cancel), "Cancel"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::MiddleButton), "MiddleButton"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::XButton1), "XButton1"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::XButton2), "XButton2"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Back), "Back"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Tab), "Tab"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Clear), "Clear"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Enter), "Return"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Shift), "Shift"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Control), "Control"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Menu), "Menu"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Pause), "Pause"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::CapitalLock), "CapitalLock"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Kana), "Kana"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Hangul), "Hangul"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Junja), "Junja"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Final), "Final"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Hanja), "Hanja"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Kanji), "Kanji"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Escape), "Escape"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Convert), "Convert"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::NonConvert), "NonConvert"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Accept), "Accept"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::ModeChange), "ModeChange"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Space), "Space"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::PageUp), "PageUp"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::PageDown), "PageDown"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::End), "End"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Home), "Home"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Left), "Left"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Up), "Up"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Right), "Right"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Down), "Down"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Select), "Select"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Print), "Print"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Execute), "Execute"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Snapshot), "Snapshot"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Insert), "Insert"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Delete), "Delete"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Help), "Help"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Number0), "Number0"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Number1), "Number1"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Number2), "Number2"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Number3), "Number3"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Number4), "Number4"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Number5), "Number5"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Number6), "Number6"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Number7), "Number7"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Number8), "Number8"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Number9), "Number9"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::A), "A"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::B), "B"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::C), "C"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::D), "D"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::E), "E"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F), "F"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::G), "G"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::H), "H"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::I), "I"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::J), "J"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::K), "K"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::L), "L"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::M), "M"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::N), "N"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::O), "O"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::P), "P"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Q), "Q"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::R), "R"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::S), "S"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::T), "T"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::U), "U"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::V), "V"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::W), "W"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::X), "X"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Y), "Y"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Z), "Z"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::LeftWindows), "LeftWindows"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::RightWindows), "RightWindows"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Application), "Application"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Sleep), "Sleep"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::NumberPad0), "Keypad+0"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::NumberPad1), "Keypad+1"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::NumberPad2), "Keypad+2"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::NumberPad3), "Keypad+3"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::NumberPad4), "Keypad+4"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::NumberPad5), "Keypad+5"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::NumberPad6), "Keypad+6"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::NumberPad7), "Keypad+7"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::NumberPad8), "Keypad+8"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::NumberPad9), "Keypad+9"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Multiply), "Multiply"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Add), "Add"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Separator), "Separator"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Subtract), "Subtract"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Decimal), "Decimal"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Divide), "Divide"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F1), "F1"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F2), "F2"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F3), "F3"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F4), "F4"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F5), "F5"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F6), "F6"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F7), "F7"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F8), "F8"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F9), "F9"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F10), "F10"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F11), "F11"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F12), "F12"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F13), "F13"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F14), "F14"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F15), "F15"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F16), "F16"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F17), "F17"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F18), "F18"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F19), "F19"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F20), "F20"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F21), "F21"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F22), "F22"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F23), "F23"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::F24), "F24"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::NavigationView), "NavigationView"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::NavigationMenu), "NavigationMenu"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::NavigationUp), "NavigationUp"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::NavigationDown), "NavigationDown"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::NavigationLeft), "NavigationLeft"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::NavigationRight), "NavigationRight"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::NavigationAccept), "NavigationAccept"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::NavigationCancel), "NavigationCancel"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::NumberKeyLock), "NumberKeyLock"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Scroll), "Scroll"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::LeftShift), "LeftShift"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::RightShift), "RightShift"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::LeftControl), "LeftControl"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::RightControl), "RightControl"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::LeftMenu), "LeftMenu"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::RightMenu), "RightMenu"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::GoBack), "GoBack"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::GoForward), "GoForward"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Refresh), "Refresh"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Stop), "Stop"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Search), "Search"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::Favorites), "Favorites"},
+  {static_cast<int>(winrt::Windows::System::VirtualKey::GoHome), "GoHome"}};

src/frontend-common/common_host_interface.cpp

@@ -22,7 +22,6 @@
 #include "core/system.h"
 #include "core/texture_replacements.h"
 #include "core/timers.h"
-#include "cubeb_audio_stream.h"
 #include "fullscreen_ui.h"
 #include "game_list.h"
 #include "icon.h"
@@ -39,6 +38,10 @@
 #include <cstring>
 #include <ctime>
 
+#ifndef _UWP
+#include "cubeb_audio_stream.h"
+#endif
+
 #ifdef WITH_SDL2
 #include "sdl_audio_stream.h"
 #endif
@@ -53,6 +56,7 @@
 
 #ifdef _WIN32
 #include "common/windows_headers.h"
+#include "xaudio2_audio_stream.h"
 #include <KnownFolders.h>
 #include <ShlObj.h>
 #include <mmsystem.h>
@@ -173,6 +177,11 @@ void CommonHostInterface::InitializeUserDirectory()
   result &= FileSystem::CreateDirectory(GetUserDirectoryRelativePath("shaders").c_str(), false);
   result &= FileSystem::CreateDirectory(GetUserDirectoryRelativePath("textures").c_str(), false);
 
+  // Games directory for UWP because it's a pain to create them manually.
+#ifdef _UWP
+  result &= FileSystem::CreateDirectory(GetUserDirectoryRelativePath("games").c_str(), false);
+#endif
+
   if (!result)
     ReportError("Failed to create one or more user directories. This may cause issues at runtime.");
 }
@@ -636,8 +645,10 @@ std::unique_ptr<AudioStream> CommonHostInterface::CreateAudioStream(AudioBackend
     case AudioBackend::Null:
       return AudioStream::CreateNullAudioStream();
 
+#ifndef _UWP
     case AudioBackend::Cubeb:
       return CubebAudioStream::Create();
+#endif
 
 #ifdef _WIN32
     case AudioBackend::XAudio2:
@@ -997,7 +1008,7 @@ void CommonHostInterface::SetUserDirectory()
   }
   else
   {
-#if defined(_WIN32)
+#if defined(_WIN32) && !defined(_UWP)
     // On Windows, use My Documents\DuckStation.
     PWSTR documents_directory;
     if (SUCCEEDED(SHGetKnownFolderPath(FOLDERID_Documents, 0, NULL, &documents_directory)))
@@ -3221,7 +3232,7 @@ void CommonHostInterface::SetTimerResolutionIncreased(bool enabled)
 
   m_timer_resolution_increased = enabled;
 
-#ifdef _WIN32
+#if defined(_WIN32) && !defined(_UWP)
   if (enabled)
     timeBeginPeriod(1);
   else

src/frontend-common/controller_interface.cpp

@@ -111,6 +111,8 @@ static constexpr std::array<const char*, static_cast<u32>(ControllerInterface::B
 #endif
 #ifdef _WIN32
   TRANSLATABLE("ControllerInterface", "XInput"),
+#endif
+#ifdef WITH_DINPUT
   TRANSLATABLE("ControllerInterface", "DInput"),
 #endif
 #ifdef ANDROID
@@ -155,9 +157,11 @@ ControllerInterface::Backend ControllerInterface::GetDefaultBackend()
 #include "sdl_controller_interface.h"
 #endif
 #ifdef _WIN32
-#include "dinput_controller_interface.h"
 #include "xinput_controller_interface.h"
 #endif
+#ifdef WITH_DINPUT
+#include "dinput_controller_interface.h"
+#endif
 #ifdef WITH_EVDEV
 #include "evdev_controller_interface.h"
 #endif
@@ -171,6 +175,8 @@ std::unique_ptr<ControllerInterface> ControllerInterface::Create(Backend type)
 #ifdef _WIN32
   if (type == Backend::XInput)
     return std::make_unique<XInputControllerInterface>();
+#endif
+#ifdef WITH_DINPUT
   if (type == Backend::DInput)
     return std::make_unique<DInputControllerInterface>();
 #endif

src/frontend-common/controller_interface.h

@@ -23,6 +23,8 @@ public:
 #endif
 #ifdef _WIN32
     XInput,
+#endif
+#ifdef WITH_DINPUT
     DInput,
 #endif
 #ifdef ANDROID

src/frontend-common/d3d11_host_display.cpp

@@ -251,7 +251,11 @@ bool D3D11HostDisplay::CreateRenderDevice(const WindowInfo& wi, std::string_view
     create_flags |= D3D11_CREATE_DEVICE_DEBUG;
 
   ComPtr<IDXGIFactory> temp_dxgi_factory;
+#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
   HRESULT hr = CreateDXGIFactory(IID_PPV_ARGS(temp_dxgi_factory.GetAddressOf()));
+#else
+  HRESULT hr = CreateDXGIFactory2(0, IID_PPV_ARGS(temp_dxgi_factory.GetAddressOf()));
+#endif
   if (FAILED(hr))
   {
     Log_ErrorPrintf("Failed to create DXGI factory: 0x%08X", hr);
@@ -385,6 +389,9 @@ bool D3D11HostDisplay::DoneRenderContextCurrent()
 
 bool D3D11HostDisplay::CreateSwapChain(const DXGI_MODE_DESC* fullscreen_mode)
 {
+  HRESULT hr;
+
+#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
   if (m_window_info.type != WindowInfo::Type::Win32)
     return false;
 
@@ -423,7 +430,7 @@ bool D3D11HostDisplay::CreateSwapChain(const DXGI_MODE_DESC* fullscreen_mode)
                  swap_chain_desc.BufferDesc.Height, m_using_flip_model_swap_chain ? "flip-discard" : "discard",
                  swap_chain_desc.Windowed ? "windowed" : "full-screen");
 
-  HRESULT hr = m_dxgi_factory->CreateSwapChain(m_device.Get(), &swap_chain_desc, m_swap_chain.GetAddressOf());
+  hr = m_dxgi_factory->CreateSwapChain(m_device.Get(), &swap_chain_desc, m_swap_chain.GetAddressOf());
   if (FAILED(hr) && m_using_flip_model_swap_chain)
   {
     Log_WarningPrintf("Failed to create a flip-discard swap chain, trying discard.");
@@ -448,6 +455,42 @@ bool D3D11HostDisplay::CreateSwapChain(const DXGI_MODE_DESC* fullscreen_mode)
     if (FAILED(hr))
       Log_WarningPrintf("MakeWindowAssociation() to disable ALT+ENTER failed");
   }
+#else
+  if (m_window_info.type != WindowInfo::Type::WinRT)
+    return false;
+
+  ComPtr<IDXGIFactory2> factory2;
+  hr = m_dxgi_factory.As(&factory2);
+  if (FAILED(hr))
+  {
+    Log_ErrorPrintf("Failed to get DXGI factory: %08X", hr);
+    return false;
+  }
+
+  DXGI_SWAP_CHAIN_DESC1 swap_chain_desc = {};
+  swap_chain_desc.Width = m_window_info.surface_width;
+  swap_chain_desc.Height = m_window_info.surface_height;
+  swap_chain_desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+  swap_chain_desc.SampleDesc.Count = 1;
+  swap_chain_desc.BufferCount = 3;
+  swap_chain_desc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
+  swap_chain_desc.SwapEffect = m_using_flip_model_swap_chain ? DXGI_SWAP_EFFECT_FLIP_DISCARD : DXGI_SWAP_EFFECT_DISCARD;
+
+  m_using_allow_tearing = (m_allow_tearing_supported && m_using_flip_model_swap_chain && !fullscreen_mode);
+  if (m_using_allow_tearing)
+    swap_chain_desc.Flags |= DXGI_SWAP_CHAIN_FLAG_ALLOW_TEARING;
+
+  ComPtr<IDXGISwapChain1> swap_chain1;
+  hr = factory2->CreateSwapChainForCoreWindow(m_device.Get(), static_cast<IUnknown*>(m_window_info.window_handle),
+                                              &swap_chain_desc, nullptr, swap_chain1.GetAddressOf());
+  if (FAILED(hr))
+  {
+    Log_ErrorPrintf("CreateSwapChainForCoreWindow failed: 0x%08X", hr);
+    return false;
+  }
+
+  m_swap_chain = swap_chain1;
+#endif
 
   return CreateSwapChainRTV();
 }
@@ -476,18 +519,22 @@ bool D3D11HostDisplay::CreateSwapChainRTV()
 
   m_window_info.surface_width = backbuffer_desc.Width;
   m_window_info.surface_height = backbuffer_desc.Height;
+  Log_InfoPrintf("Swap chain buffer size: %ux%u", m_window_info.surface_width, m_window_info.surface_height);
 
-  BOOL fullscreen = FALSE;
-  DXGI_SWAP_CHAIN_DESC desc;
-  if (SUCCEEDED(m_swap_chain->GetFullscreenState(&fullscreen, nullptr)) && fullscreen &&
-      SUCCEEDED(m_swap_chain->GetDesc(&desc)))
+  if (m_window_info.type == WindowInfo::Type::Win32)
   {
-    m_window_info.surface_refresh_rate = static_cast<float>(desc.BufferDesc.RefreshRate.Numerator) /
-                                         static_cast<float>(desc.BufferDesc.RefreshRate.Denominator);
-  }
-  else
-  {
-    m_window_info.surface_refresh_rate = 0.0f;
+    BOOL fullscreen = FALSE;
+    DXGI_SWAP_CHAIN_DESC desc;
+    if (SUCCEEDED(m_swap_chain->GetFullscreenState(&fullscreen, nullptr)) && fullscreen &&
+        SUCCEEDED(m_swap_chain->GetDesc(&desc)))
+    {
+      m_window_info.surface_refresh_rate = static_cast<float>(desc.BufferDesc.RefreshRate.Numerator) /
+                                           static_cast<float>(desc.BufferDesc.RefreshRate.Denominator);
+    }
+    else
+    {
+      m_window_info.surface_refresh_rate = 0.0f;
+    }
   }
 
   return true;
@@ -870,7 +917,11 @@ void D3D11HostDisplay::RenderSoftwareCursor(s32 left, s32 top, s32 width, s32 he
 HostDisplay::AdapterAndModeList D3D11HostDisplay::StaticGetAdapterAndModeList()
 {
   ComPtr<IDXGIFactory> dxgi_factory;
+#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
   HRESULT hr = CreateDXGIFactory(IID_PPV_ARGS(dxgi_factory.GetAddressOf()));
+#else
+  HRESULT hr = CreateDXGIFactory2(0, IID_PPV_ARGS(dxgi_factory.GetAddressOf()));
+#endif
   if (FAILED(hr))
     return {};
 

src/frontend-common/frontend-common.props

@@ -12,7 +12,7 @@
     </Link>
   </ItemDefinitionGroup>
 
-  <ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(BuildingForUWP)'!='true'">
     <ClCompile>
       <PreprocessorDefinitions>WITH_SDL2=1;WITH_DINPUT=1;WITH_DISCORD_PRESENCE=1;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AdditionalIncludeDirectories>$(SolutionDir)dep\cubeb\include;$(SolutionDir)dep\discord-rpc\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
@@ -22,5 +22,5 @@
     </Link>
   </ItemDefinitionGroup>
 
-  <Import Project="..\..\dep\msvc\vsprops\SDL2Compile.props" />
-</Project>
+  <Import Project="..\..\dep\msvc\vsprops\SDL2Compile.props" Condition="'$(BuildingForUWP)'!='true'" />
+</Project>

src/frontend-common/frontend-common.vcxproj

@@ -4,9 +4,13 @@
   <ItemGroup>
     <ClCompile Include="common_host_interface.cpp" />
     <ClCompile Include="controller_interface.cpp" />
-    <ClCompile Include="cubeb_audio_stream.cpp" />
+    <ClCompile Include="cubeb_audio_stream.cpp">
+      <ExcludedFromBuild Condition="'$(BuildingForUWP)'=='true'">true</ExcludedFromBuild>
+    </ClCompile>
     <ClCompile Include="d3d11_host_display.cpp" />
-    <ClCompile Include="dinput_controller_interface.cpp" />
+    <ClCompile Include="dinput_controller_interface.cpp">
+      <ExcludedFromBuild Condition="'$(BuildingForUWP)'=='true'">true</ExcludedFromBuild>
+    </ClCompile>
     <ClCompile Include="fullscreen_ui.cpp" />
     <ClCompile Include="fullscreen_ui_progress_callback.cpp" />
     <ClCompile Include="game_database.cpp" />
@@ -14,7 +18,12 @@
     <ClCompile Include="game_list.cpp" />
     <ClCompile Include="game_settings.cpp" />
     <ClCompile Include="http_downloader.cpp" />
-    <ClCompile Include="http_downloader_winhttp.cpp" />
+    <ClCompile Include="http_downloader_uwp.cpp">
+      <ExcludedFromBuild Condition="'$(BuildingForUWP)'!='true'">true</ExcludedFromBuild>
+    </ClCompile>
+    <ClCompile Include="http_downloader_winhttp.cpp">
+      <ExcludedFromBuild Condition="'$(BuildingForUWP)'=='true'">true</ExcludedFromBuild>
+    </ClCompile>
     <ClCompile Include="icon.cpp" />
     <ClCompile Include="imgui_fullscreen.cpp" />
     <ClCompile Include="imgui_impl_dx11.cpp" />
@@ -31,9 +40,15 @@
     <ClCompile Include="postprocessing_shadergen.cpp" />
     <ClCompile Include="cheevos.cpp" />
     <ClCompile Include="save_state_selector_ui.cpp" />
-    <ClCompile Include="sdl_audio_stream.cpp" />
-    <ClCompile Include="sdl_controller_interface.cpp" />
-    <ClCompile Include="sdl_initializer.cpp" />
+    <ClCompile Include="sdl_audio_stream.cpp">
+      <ExcludedFromBuild Condition="'$(BuildingForUWP)'=='true'">true</ExcludedFromBuild>
+    </ClCompile>
+    <ClCompile Include="sdl_controller_interface.cpp">
+      <ExcludedFromBuild Condition="'$(BuildingForUWP)'=='true'">true</ExcludedFromBuild>
+    </ClCompile>
+    <ClCompile Include="sdl_initializer.cpp">
+      <ExcludedFromBuild Condition="'$(BuildingForUWP)'=='true'">true</ExcludedFromBuild>
+    </ClCompile>
     <ClCompile Include="vulkan_host_display.cpp" />
     <ClCompile Include="xaudio2_audio_stream.cpp" />
     <ClCompile Include="xinput_controller_interface.cpp" />
@@ -41,9 +56,13 @@
   <ItemGroup>
     <ClInclude Include="common_host_interface.h" />
     <ClInclude Include="controller_interface.h" />
-    <ClInclude Include="cubeb_audio_stream.h" />
+    <ClInclude Include="cubeb_audio_stream.h">
+      <ExcludedFromBuild Condition="'$(BuildingForUWP)'=='true'">true</ExcludedFromBuild>
+    </ClInclude>
     <ClInclude Include="d3d11_host_display.h" />
-    <ClInclude Include="dinput_controller_interface.h" />
+    <ClInclude Include="dinput_controller_interface.h">
+      <ExcludedFromBuild Condition="'$(BuildingForUWP)'=='true'">true</ExcludedFromBuild>
+    </ClInclude>
     <ClInclude Include="fullscreen_ui.h" />
     <ClInclude Include="fullscreen_ui_progress_callback.h" />
     <ClInclude Include="game_database.h" />
@@ -51,7 +70,12 @@
     <ClInclude Include="game_list.h" />
     <ClInclude Include="game_settings.h" />
     <ClInclude Include="http_downloader.h" />
-    <ClInclude Include="http_downloader_winhttp.h" />
+    <ClInclude Include="http_downloader_uwp.h">
+      <ExcludedFromBuild Condition="'$(BuildingForUWP)'!='true'">true</ExcludedFromBuild>
+    </ClInclude>
+    <ClInclude Include="http_downloader_winhttp.h">
+      <ExcludedFromBuild Condition="'$(BuildingForUWP)'=='true'">true</ExcludedFromBuild>
+    </ClInclude>
     <ClInclude Include="icon.h" />
     <ClInclude Include="imgui_fullscreen.h" />
     <ClInclude Include="imgui_impl_dx11.h" />
@@ -68,9 +92,15 @@
     <ClInclude Include="postprocessing_shadergen.h" />
     <ClInclude Include="cheevos.h" />
     <ClInclude Include="save_state_selector_ui.h" />
-    <ClInclude Include="sdl_audio_stream.h" />
-    <ClInclude Include="sdl_controller_interface.h" />
-    <ClInclude Include="sdl_initializer.h" />
+    <ClInclude Include="sdl_audio_stream.h">
+      <ExcludedFromBuild Condition="'$(BuildingForUWP)'=='true'">true</ExcludedFromBuild>
+    </ClInclude>
+    <ClInclude Include="sdl_controller_interface.h">
+      <ExcludedFromBuild Condition="'$(BuildingForUWP)'=='true'">true</ExcludedFromBuild>
+    </ClInclude>
+    <ClInclude Include="sdl_initializer.h">
+      <ExcludedFromBuild Condition="'$(BuildingForUWP)'=='true'">true</ExcludedFromBuild>
+    </ClInclude>
     <ClInclude Include="vulkan_host_display.h" />
     <ClInclude Include="xaudio2_audio_stream.h" />
     <ClInclude Include="xinput_controller_interface.h" />
@@ -84,4 +114,4 @@
   <Import Project="..\..\dep\msvc\vsprops\StaticLibrary.props" />
   <Import Project="frontend-common.props" />
   <Import Project="..\..\dep\msvc\vsprops\Targets.props" />
-</Project>
+</Project>

src/frontend-common/frontend-common.vcxproj.filters

@@ -36,6 +36,7 @@
     <ClCompile Include="xaudio2_audio_stream.cpp" />
     <ClCompile Include="d3d12_host_display.cpp" />
     <ClCompile Include="imgui_impl_dx12.cpp" />
+    <ClCompile Include="http_downloader_uwp.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="icon.h" />
@@ -73,8 +74,9 @@
     <ClInclude Include="xaudio2_audio_stream.h" />
     <ClInclude Include="d3d12_host_display.h" />
     <ClInclude Include="imgui_impl_dx12.h" />
+    <ClInclude Include="http_downloader_uwp.h" />
   </ItemGroup>
   <ItemGroup>
     <None Include="font_roboto_regular.inl" />
   </ItemGroup>
-</Project>
+</Project>

src/frontend-common/http_downloader_uwp.cpp

@@ -0,0 +1,166 @@
+#include "http_downloader_uwp.h"
+#include "common/assert.h"
+#include "common/log.h"
+#include "common/string_util.h"
+#include "common/timer.h"
+#include <algorithm>
+Log_SetChannel(HTTPDownloaderWinHttp);
+
+#include <winrt/Windows.Foundation.h>
+#include <winrt/Windows.Storage.Streams.h>
+#include <winrt/Windows.Web.Http.Headers.h>
+
+using namespace winrt::Windows::Foundation;
+using namespace winrt::Windows::Web::Http;
+
+namespace FrontendCommon {
+
+HTTPDownloaderUWP::HTTPDownloaderUWP(std::string user_agent) : HTTPDownloader(), m_user_agent(std::move(user_agent)) {}
+
+HTTPDownloaderUWP::~HTTPDownloaderUWP() = default;
+
+std::unique_ptr<HTTPDownloader> HTTPDownloader::Create(const char* user_agent)
+{
+  std::string user_agent_str;
+  if (user_agent)
+    user_agent_str = user_agent;
+
+  return std::make_unique<HTTPDownloaderUWP>(user_agent ? std::string(user_agent) : std::string());
+}
+
+HTTPDownloader::Request* HTTPDownloaderUWP::InternalCreateRequest()
+{
+  Request* req = new Request();
+  return req;
+}
+
+void HTTPDownloaderUWP::InternalPollRequests()
+{
+  // noop - uses async
+}
+
+bool HTTPDownloaderUWP::StartRequest(HTTPDownloader::Request* request)
+{
+  Request* req = static_cast<Request*>(request);
+
+  try
+  {
+    const std::wstring url_wide(StringUtil::UTF8StringToWideString(req->url));
+    const Uri uri(url_wide);
+
+    if (!m_user_agent.empty() &&
+        !req->client.DefaultRequestHeaders().UserAgent().TryParseAdd(StringUtil::UTF8StringToWideString(m_user_agent)))
+    {
+      Log_WarningPrintf("Failed to set user agent to '%s'", m_user_agent.c_str());
+    }
+
+    if (req->type == Request::Type::Post)
+    {
+      const winrt::Windows::Storage::Streams::Buffer post_buf(static_cast<u32>(req->post_data.size()));
+      std::memcpy(post_buf.data(), req->post_data.data(), req->post_data.size());
+
+      const HttpBufferContent post_content(post_buf);
+      req->request_async = req->client.PostAsync(uri, post_content);
+    }
+    else
+    {
+      req->request_async = req->client.GetAsync(uri);
+    }
+
+    req->request_async.Completed(
+      [req](const IAsyncOperationWithProgress<HttpResponseMessage, HttpProgress>& operation, AsyncStatus status) {
+        if (status == AsyncStatus::Completed)
+        {
+          Log_DevPrintf("Request for '%s' completed start portion", req->url.c_str());
+          try
+          {
+            req->state.store(Request::State::Receiving);
+            req->start_time = Common::Timer::GetValue();
+
+            const HttpResponseMessage response(req->request_async.get());
+            req->status_code = static_cast<s32>(response.StatusCode());
+
+            const IHttpContent content(response.Content());
+            req->receive_async = content.ReadAsBufferAsync();
+            req->receive_async.Completed(
+              [req](
+                const IAsyncOperationWithProgress<winrt::Windows::Storage::Streams::IBuffer, uint64_t>& inner_operation,
+                AsyncStatus inner_status) {
+                if (inner_status == AsyncStatus::Completed)
+                {
+                  const winrt::Windows::Storage::Streams::IBuffer buffer(inner_operation.get());
+                  if (buffer && buffer.Length() > 0)
+                  {
+                    req->data.resize(buffer.Length());
+                    std::memcpy(req->data.data(), buffer.data(), req->data.size());
+                  }
+
+                  Log_DevPrintf("End of request '%s', %zu bytes received", req->url.c_str(), req->data.size());
+                  req->state.store(Request::State::Complete);
+                }
+                else if (inner_status == AsyncStatus::Canceled)
+                {
+                  // don't do anything, the request has been freed
+                }
+                else
+                {
+                  Log_ErrorPrintf("Request for '%s' failed during recieve phase: %08X", req->url.c_str(),
+                                  inner_operation.ErrorCode().value);
+                  req->status_code = -1;
+                  req->state.store(Request::State::Complete);
+                }
+              });
+          }
+          catch (const winrt::hresult_error& err)
+          {
+            Log_ErrorPrintf("Failed to receive HTTP request for '%s': %08X %s", req->url.c_str(), err.code(),
+                            StringUtil::WideStringToUTF8String(err.message()).c_str());
+            req->status_code = -1;
+            req->state.store(Request::State::Complete);
+          }
+
+          req->receive_async = nullptr;
+        }
+        else if (status == AsyncStatus::Canceled)
+        {
+          // don't do anything, the request has been freed
+        }
+        else
+        {
+          Log_ErrorPrintf("Request for '%s' failed during start phase: %08X", req->url.c_str(),
+                          operation.ErrorCode().value);
+          req->status_code = -1;
+          req->state.store(Request::State::Complete);
+        }
+
+        req->request_async = nullptr;
+      });
+  }
+  catch (const winrt::hresult_error& err)
+  {
+    Log_ErrorPrintf("Failed to start HTTP request for '%s': %08X %s", req->url.c_str(), err.code(),
+                    StringUtil::WideStringToUTF8String(err.message()).c_str());
+    req->callback(-1, req->data);
+    delete req;
+    return false;
+  }
+
+  Log_DevPrintf("Started HTTP request for '%s'", req->url.c_str());
+  req->state = Request::State::Started;
+  req->start_time = Common::Timer::GetValue();
+  return true;
+}
+
+void HTTPDownloaderUWP::CloseRequest(HTTPDownloader::Request* request)
+{
+  Request* req = static_cast<Request*>(request);
+  if (req->request_async)
+    req->request_async.Cancel();
+  if (req->receive_async)
+    req->receive_async.Cancel();
+
+  req->client.Close();
+  delete req;
+}
+
+} // namespace FrontendCommon

src/frontend-common/http_downloader_uwp.h

@@ -0,0 +1,37 @@
+#pragma once
+#include "http_downloader.h"
+
+#include "common/windows_headers.h"
+
+#include <winrt/windows.Web.Http.h>
+
+namespace FrontendCommon {
+
+class HTTPDownloaderUWP final : public HTTPDownloader
+{
+public:
+  HTTPDownloaderUWP(std::string user_agent);
+  ~HTTPDownloaderUWP() override;
+
+protected:
+  Request* InternalCreateRequest() override;
+  void InternalPollRequests() override;
+  bool StartRequest(HTTPDownloader::Request* request) override;
+  void CloseRequest(HTTPDownloader::Request* request) override;
+
+private:
+  struct Request : HTTPDownloader::Request
+  {
+    std::wstring object_name;
+    winrt::Windows::Web::Http::HttpClient client;
+    winrt::Windows::Foundation::IAsyncOperationWithProgress<winrt::Windows::Web::Http::HttpResponseMessage,
+                                                            winrt::Windows::Web::Http::HttpProgress>
+      request_async{nullptr};
+    winrt::Windows::Foundation::IAsyncOperationWithProgress<winrt::Windows::Storage::Streams::IBuffer, uint64_t>
+      receive_async{};
+  };
+
+  std::string m_user_agent;
+};
+
+} // namespace FrontendCommon

src/frontend-common/inhibit_screensaver.cpp

@@ -4,7 +4,7 @@
 #include <cinttypes>
 Log_SetChannel(FrontendCommon);
 
-#ifdef _WIN32
+#if defined(_WIN32) && !defined(_UWP)
 #include "common/windows_headers.h"
 
 static bool SetScreensaverInhibitWin32(bool inhibit, const WindowInfo& wi)
@@ -93,7 +93,7 @@ static bool SetScreensaverInhibit(bool inhibit, const WindowInfo& wi)
 {
   switch (wi.type)
   {
-#ifdef _WIN32
+#if defined(_WIN32) && !defined(_UWP)
     case WindowInfo::Type::Win32:
       return SetScreensaverInhibitWin32(inhibit, wi);
 #endif

src/frontend-common/xinput_controller_interface.cpp

@@ -23,6 +23,7 @@ ControllerInterface::Backend XInputControllerInterface::GetBackend() const
 
 bool XInputControllerInterface::Initialize(CommonHostInterface* host_interface)
 {
+#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
   m_xinput_module = LoadLibraryW(L"xinput1_4");
   if (!m_xinput_module)
   {
@@ -45,6 +46,10 @@ bool XInputControllerInterface::Initialize(CommonHostInterface* host_interface)
     reinterpret_cast<decltype(m_xinput_get_state)>(GetProcAddress(m_xinput_module, "XInputGetState"));
   m_xinput_set_state =
     reinterpret_cast<decltype(m_xinput_set_state)>(GetProcAddress(m_xinput_module, "XInputSetState"));
+#else
+  m_xinput_get_state = XInputGetState;
+  m_xinput_set_state = XInputSetState;
+#endif
   if (!m_xinput_get_state || !m_xinput_set_state)
   {
     Log_ErrorPrintf("Failed to get XInput function pointers.");