Frontend: Call timeBeginPeriod() to increase timer resolution

Hopefully will prevent FPS fluctuations due to sleep variation.

src/duckstation/CMakeLists.txt

@@ -20,5 +20,5 @@ if(WIN32)
     d3d11_host_display.cpp
     d3d11_host_display.h
   )
-  target_link_libraries(duckstation PRIVATE d3d11.lib)
+  target_link_libraries(duckstation PRIVATE d3d11.lib winmm.lib)
 endif()

src/duckstation/duckstation.vcxproj

@@ -219,7 +219,7 @@
     <Link>
       <SubSystem>Console</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>SDL2.lib;d3d11.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>SDL2.lib;d3d11.lib;winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib32-debug;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
     </Link>
   </ItemDefinitionGroup>
@@ -241,7 +241,7 @@
     <Link>
       <SubSystem>Console</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>SDL2.lib;d3d11.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>SDL2.lib;d3d11.lib;winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib64-debug;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
     </Link>
   </ItemDefinitionGroup>
@@ -266,7 +266,7 @@
     <Link>
       <SubSystem>Console</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>SDL2.lib;d3d11.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>SDL2.lib;d3d11.lib;winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib32-debug;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
     </Link>
   </ItemDefinitionGroup>
@@ -291,7 +291,7 @@
     <Link>
       <SubSystem>Console</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>SDL2.lib;d3d11.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>SDL2.lib;d3d11.lib;winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib64-debug;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
     </Link>
   </ItemDefinitionGroup>
@@ -314,7 +314,7 @@
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalDependencies>SDL2.lib;d3d11.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>SDL2.lib;d3d11.lib;winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib32;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
       <LinkTimeCodeGeneration>Default</LinkTimeCodeGeneration>
     </Link>
@@ -339,7 +339,7 @@
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalDependencies>SDL2.lib;d3d11.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>SDL2.lib;d3d11.lib;winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib32;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
       <LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
     </Link>
@@ -363,7 +363,7 @@
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalDependencies>SDL2.lib;d3d11.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>SDL2.lib;d3d11.lib;winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib64;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
       <LinkTimeCodeGeneration>Default</LinkTimeCodeGeneration>
     </Link>
@@ -388,7 +388,7 @@
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalDependencies>SDL2.lib;d3d11.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>SDL2.lib;d3d11.lib;winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib64;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
       <LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
     </Link>

src/duckstation/sdl_host_interface.cpp

@@ -14,6 +14,8 @@
 #include "core/timers.h"
 #ifdef Y_PLATFORM_WINDOWS
 #include "d3d11_host_display.h"
+#include "YBaseLib/Windows/WindowsHeaders.h"
+#include <mmsystem.h>
 #endif
 #include "icon.h"
 #include "imgui_styles.h"
@@ -26,7 +28,13 @@
 #include <nfd.h>
 Log_SetChannel(SDLHostInterface);
 
-SDLHostInterface::SDLHostInterface() : m_settings_filename("settings.ini") {}
+SDLHostInterface::SDLHostInterface() : m_settings_filename("settings.ini")
+{
+  // Increase timer/sleep resolution since we use it for throttling.
+#ifdef Y_PLATFORM_WINDOWS
+  timeBeginPeriod(1);
+#endif
+}
 
 SDLHostInterface::~SDLHostInterface()
 {
@@ -36,6 +44,10 @@ SDLHostInterface::~SDLHostInterface()
 
   if (m_window)
     SDL_DestroyWindow(m_window);
+
+#ifdef Y_PLATFORM_WINDOWS
+  timeEndPeriod(1);
+#endif
 }
 
 bool SDLHostInterface::CreateSDLWindow()