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#ifndef MBGL_STYLE_FUNCTION_EVALUATOR
#define MBGL_STYLE_FUNCTION_EVALUATOR
#include <mbgl/style/function.hpp>
#include <mbgl/util/interpolate.hpp>
namespace mbgl {
class StyleCalculationParameters;
template <typename T>
class NormalFunctionEvaluator {
public:
using ResultType = T;
T operator()(const Function<T>&, const StyleCalculationParameters&) const;
};
template <typename T>
struct Faded {
Faded() = default;
Faded(const T& v) : to(v) {}
T from;
float fromScale = 0;
T to;
float toScale = 0;
float t = 0;
};
template <typename T>
class CrossFadedFunctionEvaluator {
public:
using ResultType = Faded<T>;
Faded<T> operator()(const Function<T>&, const StyleCalculationParameters&) const;
};
namespace util {
template <typename T>
struct Interpolator<Faded<T>>
: Uninterpolated {};
}
} // namespace mbgl
#endif
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