kc3-lang/angle/util/Vector.h

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• Author : Jamie Madill
  Date : 2015-09-22 12:40:31
  Hash : ad60e8ee
  Message : Move more sample_util sources to util. These sample utils can also be useful for writing perf tests. BUG=angleproject:1164 Change-Id: I44b5d63b57bfce7a541442fd02cd729a1bab17f0 Reviewed-on: https://chromium-review.googlesource.com/301468 Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org> Tryjob-Request: Jamie Madill <jmadill@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>

• util/Vector.h

• //
  // Copyright (c) 2014 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  // Vector:
  //   Vector class for linear math.
  //
  
  #ifndef UTIL_VECTOR_H
  #define UTIL_VECTOR_H
  
  struct Vector2
  {
      Vector2();
      Vector2(float x, float y);
  
      static float length(const Vector2 &vec);
      static float lengthSquared(const Vector2 &vec);
  
      static Vector2 normalize(const Vector2 &vec);
  
      float *data() { return &x; }
      const float *data() const { return &x; }
  
      float x, y;
  };
  
  struct Vector3
  {
      Vector3();
      Vector3(float x, float y, float z);
  
      static float length(const Vector3 &vec);
      static float lengthSquared(const Vector3 &vec);
  
      static Vector3 normalize(const Vector3 &vec);
  
      static float dot(const Vector3 &a, const Vector3 &b);
      static Vector3 cross(const Vector3 &a, const Vector3 &b);
  
      float *data() { return &x; }
      const float *data() const { return &x; }
  
      float x, y, z;
  };
  
  Vector3 operator*(const Vector3 &a, const Vector3 &b);
  Vector3 operator*(const Vector3 &a, const float &b);
  Vector3 operator/(const Vector3 &a, const Vector3 &b);
  Vector3 operator/(const Vector3 &a, const float &b);
  Vector3 operator+(const Vector3 &a, const Vector3 &b);
  Vector3 operator-(const Vector3 &a, const Vector3 &b);
  
  struct Vector4
  {
      Vector4();
      Vector4(float x, float y, float z, float w);
  
      static float length(const Vector4 &vec);
      static float lengthSquared(const Vector4 &vec);
  
      static Vector4 normalize(const Vector4 &vec);
  
      static float dot(const Vector4 &a, const Vector4 &b);
  
      float *data() { return &x; }
      const float *data() const { return &x; }
  
      float x, y, z, w;
  };
  
  #endif  // UTIL_VECTOR_H