Remove unused code.

xfa/fxbarcode/common/BC_CommonPerspectiveTransform.cpp

-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-// Original code is licensed as follows:
-/*
- * Copyright 2007 ZXing authors
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "xfa/fxbarcode/common/BC_CommonPerspectiveTransform.h"
-
-#include <memory>
-
-#include "core/fxcrt/include/fx_basic.h"
-#include "xfa/fxbarcode/utils.h"
-
-CBC_CommonPerspectiveTransform::CBC_CommonPerspectiveTransform(FX_FLOAT a11,
-                                                               FX_FLOAT a21,
-                                                               FX_FLOAT a31,
-                                                               FX_FLOAT a12,
-                                                               FX_FLOAT a22,
-                                                               FX_FLOAT a32,
-                                                               FX_FLOAT a13,
-                                                               FX_FLOAT a23,
-                                                               FX_FLOAT a33)
-    : m_a11(a11),
-      m_a12(a12),
-      m_a13(a13),
-      m_a21(a21),
-      m_a22(a22),
-      m_a23(a23),
-      m_a31(a31),
-      m_a32(a32),
-      m_a33(a33) {}
-CBC_CommonPerspectiveTransform::~CBC_CommonPerspectiveTransform() {}
-CBC_CommonPerspectiveTransform*
-CBC_CommonPerspectiveTransform::QuadrilateralToQuadrilateral(FX_FLOAT x0,
-                                                             FX_FLOAT y0,
-                                                             FX_FLOAT x1,
-                                                             FX_FLOAT y1,
-                                                             FX_FLOAT x2,
-                                                             FX_FLOAT y2,
-                                                             FX_FLOAT x3,
-                                                             FX_FLOAT y3,
-                                                             FX_FLOAT x0p,
-                                                             FX_FLOAT y0p,
-                                                             FX_FLOAT x1p,
-                                                             FX_FLOAT y1p,
-                                                             FX_FLOAT x2p,
-                                                             FX_FLOAT y2p,
-                                                             FX_FLOAT x3p,
-                                                             FX_FLOAT y3p) {
-  std::unique_ptr<CBC_CommonPerspectiveTransform> qToS(
-      QuadrilateralToSquare(x0, y0, x1, y1, x2, y2, x3, y3));
-  std::unique_ptr<CBC_CommonPerspectiveTransform> sToQ(
-      SquareToQuadrilateral(x0p, y0p, x1p, y1p, x2p, y2p, x3p, y3p));
-  return sToQ->Times(*(qToS.get()));
-}
-void CBC_CommonPerspectiveTransform::TransformPoints(CFX_FloatArray* points) {
-  int32_t max = points->GetSize();
-  FX_FLOAT a11 = m_a11;
-  FX_FLOAT a12 = m_a12;
-  FX_FLOAT a13 = m_a13;
-  FX_FLOAT a21 = m_a21;
-  FX_FLOAT a22 = m_a22;
-  FX_FLOAT a23 = m_a23;
-  FX_FLOAT a31 = m_a31;
-  FX_FLOAT a32 = m_a32;
-  FX_FLOAT a33 = m_a33;
-  int32_t i;
-  for (i = 0; i < max; i += 2) {
-    FX_FLOAT x = (*points)[i];
-    FX_FLOAT y = (*points)[i + 1];
-    FX_FLOAT denominator = a13 * x + a23 * y + a33;
-    (*points)[i] = (a11 * x + a21 * y + a31) / denominator;
-    (*points)[i + 1] = (a12 * x + a22 * y + a32) / denominator;
-  }
-}
-CBC_CommonPerspectiveTransform*
-CBC_CommonPerspectiveTransform::SquareToQuadrilateral(FX_FLOAT x0,
-                                                      FX_FLOAT y0,
-                                                      FX_FLOAT x1,
-                                                      FX_FLOAT y1,
-                                                      FX_FLOAT x2,
-                                                      FX_FLOAT y2,
-                                                      FX_FLOAT x3,
-                                                      FX_FLOAT y3) {
-  FX_FLOAT dy2 = y3 - y2;
-  FX_FLOAT dy3 = y0 - y1 + y2 - y3;
-  if ((dy2 == 0.0f) && (dy3 == 0.0f)) {
-    return new CBC_CommonPerspectiveTransform(x1 - x0, x2 - x1, x0, y1 - y0,
-                                              y2 - y1, y0, 0.0f, 0.0f, 1.0f);
-  } else {
-    FX_FLOAT dx1 = x1 - x2;
-    FX_FLOAT dx2 = x3 - x2;
-    FX_FLOAT dx3 = x0 - x1 + x2 - x3;
-    FX_FLOAT dy1 = y1 - y2;
-    FX_FLOAT denominator = dx1 * dy2 - dx2 * dy1;
-    FX_FLOAT a13 = (dx3 * dy2 - dx2 * dy3) / denominator;
-    FX_FLOAT a23 = (dx1 * dy3 - dx3 * dy1) / denominator;
-    return new CBC_CommonPerspectiveTransform(
-        x1 - x0 + a13 * x1, x3 - x0 + a23 * x3, x0, y1 - y0 + a13 * y1,
-        y3 - y0 + a23 * y3, y0, a13, a23, 1.0f);
-  }
-}
-CBC_CommonPerspectiveTransform*
-CBC_CommonPerspectiveTransform::QuadrilateralToSquare(FX_FLOAT x0,
-                                                      FX_FLOAT y0,
-                                                      FX_FLOAT x1,
-                                                      FX_FLOAT y1,
-                                                      FX_FLOAT x2,
-                                                      FX_FLOAT y2,
-                                                      FX_FLOAT x3,
-                                                      FX_FLOAT y3) {
-  std::unique_ptr<CBC_CommonPerspectiveTransform> temp1(
-      SquareToQuadrilateral(x0, y0, x1, y1, x2, y2, x3, y3));
-  return temp1->BuildAdjoint();
-}
-CBC_CommonPerspectiveTransform* CBC_CommonPerspectiveTransform::BuildAdjoint() {
-  return new CBC_CommonPerspectiveTransform(
-      m_a22 * m_a33 - m_a23 * m_a32, m_a23 * m_a31 - m_a21 * m_a33,
-      m_a21 * m_a32 - m_a22 * m_a31, m_a13 * m_a32 - m_a12 * m_a33,
-      m_a11 * m_a33 - m_a13 * m_a31, m_a12 * m_a31 - m_a11 * m_a32,
-      m_a12 * m_a23 - m_a13 * m_a22, m_a13 * m_a21 - m_a11 * m_a23,
-      m_a11 * m_a22 - m_a12 * m_a21);
-}
-CBC_CommonPerspectiveTransform* CBC_CommonPerspectiveTransform::Times(
-    CBC_CommonPerspectiveTransform& other) {
-  return new CBC_CommonPerspectiveTransform(
-      m_a11 * other.m_a11 + m_a21 * other.m_a12 + m_a31 * other.m_a13,
-      m_a11 * other.m_a21 + m_a21 * other.m_a22 + m_a31 * other.m_a23,
-      m_a11 * other.m_a31 + m_a21 * other.m_a32 + m_a31 * other.m_a33,
-      m_a12 * other.m_a11 + m_a22 * other.m_a12 + m_a32 * other.m_a13,
-      m_a12 * other.m_a21 + m_a22 * other.m_a22 + m_a32 * other.m_a23,
-      m_a12 * other.m_a31 + m_a22 * other.m_a32 + m_a32 * other.m_a33,
-      m_a13 * other.m_a11 + m_a23 * other.m_a12 + m_a33 * other.m_a13,
-      m_a13 * other.m_a21 + m_a23 * other.m_a22 + m_a33 * other.m_a23,
-      m_a13 * other.m_a31 + m_a23 * other.m_a32 + m_a33 * other.m_a33);
-}