Move CameraServer and WPILib headers into their own folder

The old headers were moved into folders because doing so avoids polluting
the system include directories.

Folder names were also normalized to lowercase.

wpilibc/src/main/native/include/frc/drive/RobotDriveBase.h

@@ -0,0 +1,109 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) 2008-2018 FIRST. All Rights Reserved.                        */
+/* Open Source Software - may be modified and shared by FRC teams. The code   */
+/* must be accompanied by the FIRST BSD license file in the root directory of */
+/* the project.                                                               */
+/*----------------------------------------------------------------------------*/
+
+#pragma once
+
+#include <memory>
+
+#include <wpi/ArrayRef.h>
+#include <wpi/raw_ostream.h>
+
+#include "frc/MotorSafety.h"
+#include "frc/MotorSafetyHelper.h"
+#include "frc/smartdashboard/SendableBase.h"
+
+namespace frc {
+
+class SpeedController;
+
+/**
+ * Common base class for drive platforms.
+ */
+class RobotDriveBase : public MotorSafety, public SendableBase {
+ public:
+  /**
+   * The location of a motor on the robot for the purpose of driving.
+   */
+  enum MotorType {
+    kFrontLeft = 0,
+    kFrontRight = 1,
+    kRearLeft = 2,
+    kRearRight = 3,
+    kLeft = 0,
+    kRight = 1,
+    kBack = 2
+  };
+
+  RobotDriveBase();
+  ~RobotDriveBase() override = default;
+
+  RobotDriveBase(const RobotDriveBase&) = delete;
+  RobotDriveBase& operator=(const RobotDriveBase&) = delete;
+
+  /**
+   * Sets the deadband applied to the drive inputs (e.g., joystick values).
+   *
+   * The default value is 0.02. Inputs smaller than the deadband are set to 0.0
+   * while inputs larger than the deadband are scaled from 0.0 to 1.0. See
+   * ApplyDeadband().
+   *
+   * @param deadband The deadband to set.
+   */
+  void SetDeadband(double deadband);
+
+  /**
+   * Configure the scaling factor for using RobotDrive with motor controllers in
+   * a mode other than PercentVbus or to limit the maximum output.
+   *
+   * @param maxOutput Multiplied with the output percentage computed by the
+   *                  drive functions.
+   */
+  void SetMaxOutput(double maxOutput);
+
+  /**
+   * Feed the motor safety object. Resets the timer that will stop the motors if
+   * it completes.
+   *
+   * @see MotorSafetyHelper::Feed()
+   */
+  void FeedWatchdog();
+
+  void SetExpiration(double timeout) override;
+  double GetExpiration() const override;
+  bool IsAlive() const override;
+  void StopMotor() override = 0;
+  bool IsSafetyEnabled() const override;
+  void SetSafetyEnabled(bool enabled) override;
+  void GetDescription(wpi::raw_ostream& desc) const override = 0;
+
+ protected:
+  /**
+   * Limit motor values to the -1.0 to +1.0 range.
+   */
+  double Limit(double number);
+
+  /**
+   * Returns 0.0 if the given value is within the specified range around zero.
+   * The remaining range between the deadband and 1.0 is scaled from 0.0 to 1.0.
+   *
+   * @param value    value to clip
+   * @param deadband range around zero
+   */
+  double ApplyDeadband(double number, double deadband);
+
+  /**
+   * Normalize all wheel speeds if the magnitude of any wheel is greater than
+   * 1.0.
+   */
+  void Normalize(wpi::MutableArrayRef<double> wheelSpeeds);
+
+  double m_deadband = 0.02;
+  double m_maxOutput = 1.0;
+  MotorSafetyHelper m_safetyHelper{this};
+};
+
+}  // namespace frc