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Merge pull request #2266 from Capostrophic/vsync

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Vsync tweaks
This commit is contained in:
Bret Curtis 2019-03-19 09:23:48 +01:00 committed by GitHub
commit 19dcbf2b3d
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 25 additions and 2 deletions
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24
components/sdlutil/sdlgraphicswindow.cpp
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@ -113,7 +113,7 @@ void GraphicsWindowSDL2::init()
return; return;
} }
SDL_GL_SetSwapInterval(_traits->vsync ? 1 : 0); setSwapInterval(_traits->vsync);
SDL_GL_MakeCurrent(oldWin, oldCtx); SDL_GL_MakeCurrent(oldWin, oldCtx);
@ -194,11 +194,31 @@ void GraphicsWindowSDL2::setSyncToVBlank(bool on)
SDL_GL_MakeCurrent(mWindow, mContext); SDL_GL_MakeCurrent(mWindow, mContext);
SDL_GL_SetSwapInterval(on ? 1 : 0); setSwapInterval(on);
SDL_GL_MakeCurrent(oldWin, oldCtx); SDL_GL_MakeCurrent(oldWin, oldCtx);
} }
void GraphicsWindowSDL2::setSwapInterval(bool enable)
{
if (enable)
{
if (SDL_GL_SetSwapInterval(-1) == -1)
{
OSG_NOTICE << "Adaptive vsync unsupported" << std::endl;
if (SDL_GL_SetSwapInterval(1) == -1)
{
OSG_NOTICE << "Vertical synchronization unsupported, disabling" << std::endl;
SDL_GL_SetSwapInterval(0);
}
}
}
else
{
SDL_GL_SetSwapInterval(0);
}
}
void GraphicsWindowSDL2::raiseWindow() void GraphicsWindowSDL2::raiseWindow()
{ {
SDL_RaiseWindow(mWindow); SDL_RaiseWindow(mWindow);

3
components/sdlutil/sdlgraphicswindow.hpp
View File

@ -80,6 +80,9 @@ public:
SDL_Window *mWindow; SDL_Window *mWindow;
}; };
private:
void setSwapInterval(bool enable);
}; };
} }