#pragma once #include constexpr GLuint kLayerInputTextureUnit = 0; constexpr GLuint kDecodedVideoTextureUnit = 1; constexpr GLuint kSourceHistoryTextureUnitBase = 2; constexpr GLuint kPackedVideoTextureUnit = 2; constexpr GLuint kGlobalParamsBindingPoint = 0; constexpr unsigned kPrerollFrameCount = 8;