Progress on fonts

src/dawn/util/mathutils.hpp

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+/**
+ * Copyright (c) 2022 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "dawnlibs.hpp"
+
+#define MATH_PI 3.1415926535897f
+
+/**
+ * Returns the largest of the two provided int32 numbers.
+ * 
+ * @param left Left number to get the largest of.
+ * @param right Right number to get the largest of.
+ * @return The larger of the two numbers
+ */
+template<typename T>
+static inline T mathMax(T left, T right) {
+  return left < right ? right : left;
+}
+
+/**
+ * Returns the smallest of two provided int32 numbers.
+ * 
+ * @param left Left number to get the smallest of.
+ * @param right Right number to get the smallest of.
+ * @return Smaller of the two numbers.
+ */
+template<typename T>
+static inline T mathMin(T left, T right) {
+  return left < right ? left : right;
+}
+
+/**
+ * Returns the input value, constrained between the min and max values, so that
+ * the value cannot underceed the min, and cannot exceed the max.
+ * 
+ * @param val Value to get the clamp for.
+ * @param min Minimum clamping value.
+ * @param max Maximum clamping value.
+ * @return The value, or the closest clamped value.
+ */
+template<typename T>
+static inline T mathClamp(T val, T min, T max) {
+  return mathMin<T>(mathMax<T>(val, min), max);
+}
+
+/**
+ * Returns the absolute value (the non-negative representation of) for the given
+ * int32 number.Abs values will be -value if value < 0.
+ * 
+ * @param value Value to get the absolute value for.
+ * @return The absolute value (-value if value < 0)
+ */
+template<typename T>
+static inline T mathAbs(T value) {
+  return value < 0 ? -value : value;
+}
+
+template<typename T>
+static inline int32_t mathMod(T value, T modulo) {
+  return ((value % modulo) + modulo) % modulo;
+}
+
+// Float-specific
+
+/**
+ * Convert degrees to radians.
+ * 
+ * @param n Degrees to convert.
+ * @returns The number in radians.
+ */
+static inline float_t mathDeg2Rad(float_t degrees) {
+  return degrees * (MATH_PI / 180.0f);
+}
+
+/**
+ * Convert radians to degrees.
+ * @param n Radians to convert.
+ * @returns The number in degrees.
+ */
+static inline float_t mathRad2Deg(float_t n) {
+  return (n * 180.0f) / MATH_PI;
+}
+
+/**
+ * Round a number to the nearest whole number.
+ * @param n Number to round.
+ * @return Rounded number.
+ */
+static inline float_t mathRoundFloat(float_t n) {
+  return roundf(n);
+}
+
+/**
+ * Rounds the number down to the nearest whole number.
+ * @param n Number to round down.
+ * @return Rounded number.
+ */
+static inline float_t mathFloorFloat(float_t n) {
+  return floorf(n);
+}