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+//
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+// Copyright (c) 2008-2022 the Urho3D project.
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+//
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+// Permission is hereby granted, free of charge, to any person obtaining a copy
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+// of this software and associated documentation files (the "Software"), to deal
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+// in the Software without restriction, including without limitation the rights
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+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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+// copies of the Software, and to permit persons to whom the Software is
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+// furnished to do so, subject to the following conditions:
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+//
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+// The above copyright notice and this permission notice shall be included in
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+// all copies or substantial portions of the Software.
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+//
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+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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+// THE SOFTWARE.
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+//
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+
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+// Prefer the high-performance GPU on switchable GPU systems
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+
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+#ifdef _WIN32
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+
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+extern "C"
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+{
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+ // https://developer.download.nvidia.com/devzone/devcenter/gamegraphics/files/OptimusRenderingPolicies.pdf
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+ __declspec(dllexport) unsigned long NvOptimusEnablement = 1;
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+
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+ // https://community.amd.com/t5/archives-discussions/can-an-opengl-app-default-to-the-discrete-gpu-on-an-enduro/td-p/279440
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+ __declspec(dllexport) int AmdPowerXpressRequestHighPerformance = 1;
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+}
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+
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+#endif // def _WIN32
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