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Frontend: Call timeBeginPeriod() to increase timer resolution

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Hopefully will prevent FPS fluctuations due to sleep variation.
This commit is contained in:
Connor McLaughlin 2019-11-17 01:47:52 +10:00
parent b2b5e6c793
commit 55550798e4
3 changed files with 22 additions and 10 deletions
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2
src/duckstation/CMakeLists.txt
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@ -20,5 +20,5 @@ if(WIN32)
d3d11_host_display.cpp d3d11_host_display.cpp
d3d11_host_display.h d3d11_host_display.h
) )
target_link_libraries(duckstation PRIVATE d3d11.lib) target_link_libraries(duckstation PRIVATE d3d11.lib winmm.lib)
endif() endif()

16
src/duckstation/duckstation.vcxproj
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@ -219,7 +219,7 @@
<Link> <Link>
<SubSystem>Console</SubSystem> <SubSystem>Console</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation> <GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalDependencies>SDL2.lib;d3d11.lib;%(AdditionalDependencies)</AdditionalDependencies> <AdditionalDependencies>SDL2.lib;d3d11.lib;winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib32-debug;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories> <AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib32-debug;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
</Link> </Link>
</ItemDefinitionGroup> </ItemDefinitionGroup>
@ -241,7 +241,7 @@
<Link> <Link>
<SubSystem>Console</SubSystem> <SubSystem>Console</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation> <GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalDependencies>SDL2.lib;d3d11.lib;%(AdditionalDependencies)</AdditionalDependencies> <AdditionalDependencies>SDL2.lib;d3d11.lib;winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib64-debug;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories> <AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib64-debug;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
</Link> </Link>
</ItemDefinitionGroup> </ItemDefinitionGroup>
@ -266,7 +266,7 @@
<Link> <Link>
<SubSystem>Console</SubSystem> <SubSystem>Console</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation> <GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalDependencies>SDL2.lib;d3d11.lib;%(AdditionalDependencies)</AdditionalDependencies> <AdditionalDependencies>SDL2.lib;d3d11.lib;winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib32-debug;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories> <AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib32-debug;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
</Link> </Link>
</ItemDefinitionGroup> </ItemDefinitionGroup>
@ -291,7 +291,7 @@
<Link> <Link>
<SubSystem>Console</SubSystem> <SubSystem>Console</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation> <GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalDependencies>SDL2.lib;d3d11.lib;%(AdditionalDependencies)</AdditionalDependencies> <AdditionalDependencies>SDL2.lib;d3d11.lib;winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib64-debug;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories> <AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib64-debug;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
</Link> </Link>
</ItemDefinitionGroup> </ItemDefinitionGroup>
@ -314,7 +314,7 @@
<GenerateDebugInformation>true</GenerateDebugInformation> <GenerateDebugInformation>true</GenerateDebugInformation>
<EnableCOMDATFolding>true</EnableCOMDATFolding> <EnableCOMDATFolding>true</EnableCOMDATFolding>
<OptimizeReferences>true</OptimizeReferences> <OptimizeReferences>true</OptimizeReferences>
<AdditionalDependencies>SDL2.lib;d3d11.lib;%(AdditionalDependencies)</AdditionalDependencies> <AdditionalDependencies>SDL2.lib;d3d11.lib;winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib32;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories> <AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib32;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
<LinkTimeCodeGeneration>Default</LinkTimeCodeGeneration> <LinkTimeCodeGeneration>Default</LinkTimeCodeGeneration>
</Link> </Link>
@ -339,7 +339,7 @@
<GenerateDebugInformation>true</GenerateDebugInformation> <GenerateDebugInformation>true</GenerateDebugInformation>
<EnableCOMDATFolding>true</EnableCOMDATFolding> <EnableCOMDATFolding>true</EnableCOMDATFolding>
<OptimizeReferences>true</OptimizeReferences> <OptimizeReferences>true</OptimizeReferences>
<AdditionalDependencies>SDL2.lib;d3d11.lib;%(AdditionalDependencies)</AdditionalDependencies> <AdditionalDependencies>SDL2.lib;d3d11.lib;winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib32;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories> <AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib32;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
<LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration> <LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
</Link> </Link>
@ -363,7 +363,7 @@
<GenerateDebugInformation>true</GenerateDebugInformation> <GenerateDebugInformation>true</GenerateDebugInformation>
<EnableCOMDATFolding>true</EnableCOMDATFolding> <EnableCOMDATFolding>true</EnableCOMDATFolding>
<OptimizeReferences>true</OptimizeReferences> <OptimizeReferences>true</OptimizeReferences>
<AdditionalDependencies>SDL2.lib;d3d11.lib;%(AdditionalDependencies)</AdditionalDependencies> <AdditionalDependencies>SDL2.lib;d3d11.lib;winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib64;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories> <AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib64;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
<LinkTimeCodeGeneration>Default</LinkTimeCodeGeneration> <LinkTimeCodeGeneration>Default</LinkTimeCodeGeneration>
</Link> </Link>
@ -388,7 +388,7 @@
<GenerateDebugInformation>true</GenerateDebugInformation> <GenerateDebugInformation>true</GenerateDebugInformation>
<EnableCOMDATFolding>true</EnableCOMDATFolding> <EnableCOMDATFolding>true</EnableCOMDATFolding>
<OptimizeReferences>true</OptimizeReferences> <OptimizeReferences>true</OptimizeReferences>
<AdditionalDependencies>SDL2.lib;d3d11.lib;%(AdditionalDependencies)</AdditionalDependencies> <AdditionalDependencies>SDL2.lib;d3d11.lib;winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib64;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories> <AdditionalLibraryDirectories>$(SolutionDir)dep\msvc\lib64;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
<LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration> <LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
</Link> </Link>

14
src/duckstation/sdl_host_interface.cpp
View File

@ -14,6 +14,8 @@
#include "core/timers.h" #include "core/timers.h"
#ifdef Y_PLATFORM_WINDOWS #ifdef Y_PLATFORM_WINDOWS
#include "d3d11_host_display.h" #include "d3d11_host_display.h"
#include "YBaseLib/Windows/WindowsHeaders.h"
#include <mmsystem.h>
#endif #endif
#include "icon.h" #include "icon.h"
#include "imgui_styles.h" #include "imgui_styles.h"
@ -26,7 +28,13 @@
#include <nfd.h> #include <nfd.h>
Log_SetChannel(SDLHostInterface); 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() SDLHostInterface::~SDLHostInterface()
{ {
@ -36,6 +44,10 @@ SDLHostInterface::~SDLHostInterface()
if (m_window) if (m_window)
SDL_DestroyWindow(m_window); SDL_DestroyWindow(m_window);
#ifdef Y_PLATFORM_WINDOWS
timeEndPeriod(1);
#endif
} }
bool SDLHostInterface::CreateSDLWindow() bool SDLHostInterface::CreateSDLWindow()