Use GLFW swap interval for force vsync to monitor
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9861a02ed1
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@ -92,14 +92,19 @@ int main()
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glfwSetWindowUserPointer(window, static_cast<void *>(&game));
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f32 startTime = static_cast<f32>(glfwGetTime());
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f32 secondsElapsed = 0.0f; // Time between current frame and last frame
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#if 0
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// TODO(doyle): Get actual monitor refresh rate
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i32 monitorRefreshHz = 60;
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f32 targetSecondsPerFrame = 1.0f / static_cast<f32>(monitorRefreshHz);
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f32 startTime = static_cast<f32>(glfwGetTime());
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//glfwSwapInterval(1);
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i32 monitorRefreshHz = 60;
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f32 targetSecondsPerFrame = 1.0f / static_cast<f32>(monitorRefreshHz);
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#else
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// TODO(doyle): http://gafferongames.com/game-physics/fix-your-timestep/
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// NOTE(doyle): Prevent glfwSwapBuffer until a vertical retrace has
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// occurred, i.e. limit framerate to monitor refresh rate
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glfwSwapInterval(1);
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#endif
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/* Main game loop */
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while (!glfwWindowShouldClose(window))
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@ -120,15 +125,17 @@ int main()
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/* Swap the buffers */
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glfwSwapBuffers(window);
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f32 endTime = static_cast<f32>(glfwGetTime());
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f32 endTime = static_cast<f32>(glfwGetTime());
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secondsElapsed = endTime - startTime;
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#if 0
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// TODO(doyle): Busy waiting, should sleep
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while (secondsElapsed < targetSecondsPerFrame)
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{
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endTime = static_cast<f32>(glfwGetTime());
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secondsElapsed = endTime - startTime;
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}
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#endif
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LOCAL_PERSIST f32 titleUpdateFrequencyInSeconds = 0.5f;
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