clang-format all pdfium code.

core/src/fxge/ge/fx_ge_path.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
 
 #include "../../../../third_party/base/numerics/safe_math.h"
 #include "../../../include/fxcrt/fx_system.h"
 #include "../../../include/fxge/fx_ge.h"
 
-CFX_ClipRgn::CFX_ClipRgn(int width, int height)
-{
+CFX_ClipRgn::CFX_ClipRgn(int width, int height) {
+  m_Type = RectI;
+  m_Box.left = m_Box.top = 0;
+  m_Box.right = width;
+  m_Box.bottom = height;
+}
+CFX_ClipRgn::CFX_ClipRgn(const FX_RECT& rect) {
+  m_Type = RectI;
+  m_Box = rect;
+}
+CFX_ClipRgn::CFX_ClipRgn(const CFX_ClipRgn& src) {
+  m_Type = src.m_Type;
+  m_Box = src.m_Box;
+  m_Mask = src.m_Mask;
+}
+CFX_ClipRgn::~CFX_ClipRgn() {}
+void CFX_ClipRgn::Reset(const FX_RECT& rect) {
+  m_Type = RectI;
+  m_Box = rect;
+  m_Mask.SetNull();
+}
+void CFX_ClipRgn::IntersectRect(const FX_RECT& rect) {
+  if (m_Type == RectI) {
+    m_Box.Intersect(rect);
+    return;
+  }
+  if (m_Type == MaskF) {
+    IntersectMaskRect(rect, m_Box, m_Mask);
+    return;
+  }
+}
+void CFX_ClipRgn::IntersectMaskRect(FX_RECT rect,
+                                    FX_RECT mask_rect,
+                                    CFX_DIBitmapRef Mask) {
+  const CFX_DIBitmap* mask_dib = Mask;
+  m_Type = MaskF;
+  m_Box = rect;
+  m_Box.Intersect(mask_rect);
+  if (m_Box.IsEmpty()) {
     m_Type = RectI;
-    m_Box.left = m_Box.top = 0;
-    m_Box.right = width;
-    m_Box.bottom = height;
-}
-CFX_ClipRgn::CFX_ClipRgn(const FX_RECT& rect)
-{
-    m_Type = RectI;
-    m_Box = rect;
-}
-CFX_ClipRgn::CFX_ClipRgn(const CFX_ClipRgn& src)
-{
-    m_Type = src.m_Type;
-    m_Box = src.m_Box;
-    m_Mask = src.m_Mask;
-}
-CFX_ClipRgn::~CFX_ClipRgn()
-{
-}
-void CFX_ClipRgn::Reset(const FX_RECT& rect)
-{
-    m_Type = RectI;
-    m_Box = rect;
-    m_Mask.SetNull();
-}
-void CFX_ClipRgn::IntersectRect(const FX_RECT& rect)
-{
-    if (m_Type == RectI) {
-        m_Box.Intersect(rect);
-        return;
-    }
-    if (m_Type == MaskF) {
-        IntersectMaskRect(rect, m_Box, m_Mask);
-        return;
-    }
-}
-void CFX_ClipRgn::IntersectMaskRect(FX_RECT rect, FX_RECT mask_rect, CFX_DIBitmapRef Mask)
-{
-    const CFX_DIBitmap* mask_dib = Mask;
-    m_Type = MaskF;
-    m_Box = rect;
-    m_Box.Intersect(mask_rect);
-    if (m_Box.IsEmpty()) {
-        m_Type = RectI;
-        return;
-    }
-    if (m_Box == mask_rect) {
-        m_Mask = Mask;
-        return;
-    }
-    CFX_DIBitmap* new_dib = m_Mask.New();
+    return;
+  }
+  if (m_Box == mask_rect) {
+    m_Mask = Mask;
+    return;
+  }
+  CFX_DIBitmap* new_dib = m_Mask.New();
+  if (!new_dib) {
+    return;
+  }
+  new_dib->Create(m_Box.Width(), m_Box.Height(), FXDIB_8bppMask);
+  for (int row = m_Box.top; row < m_Box.bottom; row++) {
+    uint8_t* dest_scan =
+        new_dib->GetBuffer() + new_dib->GetPitch() * (row - m_Box.top);
+    uint8_t* src_scan =
+        mask_dib->GetBuffer() + mask_dib->GetPitch() * (row - mask_rect.top);
+    for (int col = m_Box.left; col < m_Box.right; col++) {
+      dest_scan[col - m_Box.left] = src_scan[col - mask_rect.left];
+    }
+  }
+}
+void CFX_ClipRgn::IntersectMaskF(int left, int top, CFX_DIBitmapRef Mask) {
+  const CFX_DIBitmap* mask_dib = Mask;
+  ASSERT(mask_dib->GetFormat() == FXDIB_8bppMask);
+  FX_RECT mask_box(left, top, left + mask_dib->GetWidth(),
+                   top + mask_dib->GetHeight());
+  if (m_Type == RectI) {
+    IntersectMaskRect(m_Box, mask_box, Mask);
+    return;
+  }
+  if (m_Type == MaskF) {
+    FX_RECT new_box = m_Box;
+    new_box.Intersect(mask_box);
+    if (new_box.IsEmpty()) {
+      m_Type = RectI;
+      m_Mask.SetNull();
+      m_Box = new_box;
+      return;
+    }
+    CFX_DIBitmapRef new_mask;
+    CFX_DIBitmap* new_dib = new_mask.New();
     if (!new_dib) {
-        return;
-    }
-    new_dib->Create(m_Box.Width(), m_Box.Height(), FXDIB_8bppMask);
-    for (int row = m_Box.top; row < m_Box.bottom; row ++) {
-        uint8_t* dest_scan = new_dib->GetBuffer() + new_dib->GetPitch() * (row - m_Box.top);
-        uint8_t* src_scan = mask_dib->GetBuffer() + mask_dib->GetPitch() * (row - mask_rect.top);
-        for (int col = m_Box.left; col < m_Box.right; col ++) {
-            dest_scan[col - m_Box.left] = src_scan[col - mask_rect.left];
+      return;
+    }
+    new_dib->Create(new_box.Width(), new_box.Height(), FXDIB_8bppMask);
+    const CFX_DIBitmap* old_dib = m_Mask;
+    for (int row = new_box.top; row < new_box.bottom; row++) {
+      uint8_t* old_scan =
+          old_dib->GetBuffer() + (row - m_Box.top) * old_dib->GetPitch();
+      uint8_t* mask_scan =
+          mask_dib->GetBuffer() + (row - top) * mask_dib->GetPitch();
+      uint8_t* new_scan =
+          new_dib->GetBuffer() + (row - new_box.top) * new_dib->GetPitch();
+      for (int col = new_box.left; col < new_box.right; col++) {
+        new_scan[col - new_box.left] =
+            old_scan[col - m_Box.left] * mask_scan[col - left] / 255;
+      }
+    }
+    m_Box = new_box;
+    m_Mask = new_mask;
+    return;
+  }
+  ASSERT(FALSE);
+}
+CFX_PathData::CFX_PathData() {
+  m_PointCount = m_AllocCount = 0;
+  m_pPoints = NULL;
+}
+CFX_PathData::~CFX_PathData() {
+  if (m_pPoints) {
+    FX_Free(m_pPoints);
+  }
+}
+void CFX_PathData::SetPointCount(int nPoints) {
+  m_PointCount = nPoints;
+  if (m_AllocCount < nPoints) {
+    if (m_pPoints) {
+      FX_Free(m_pPoints);
+      m_pPoints = NULL;
+    }
+    m_pPoints = FX_Alloc(FX_PATHPOINT, nPoints);
+    m_AllocCount = nPoints;
+  }
+}
+void CFX_PathData::AllocPointCount(int nPoints) {
+  if (m_AllocCount < nPoints) {
+    FX_PATHPOINT* pNewBuf = FX_Alloc(FX_PATHPOINT, nPoints);
+    if (m_PointCount) {
+      FXSYS_memcpy(pNewBuf, m_pPoints, m_PointCount * sizeof(FX_PATHPOINT));
+    }
+    if (m_pPoints) {
+      FX_Free(m_pPoints);
+    }
+    m_pPoints = pNewBuf;
+    m_AllocCount = nPoints;
+  }
+}
+CFX_PathData::CFX_PathData(const CFX_PathData& src) {
+  m_PointCount = m_AllocCount = src.m_PointCount;
+  m_pPoints = FX_Alloc(FX_PATHPOINT, src.m_PointCount);
+  FXSYS_memcpy(m_pPoints, src.m_pPoints, sizeof(FX_PATHPOINT) * m_PointCount);
+}
+void CFX_PathData::TrimPoints(int nPoints) {
+  if (m_PointCount <= nPoints) {
+    return;
+  }
+  SetPointCount(nPoints);
+}
+void CFX_PathData::AddPointCount(int addPoints) {
+  pdfium::base::CheckedNumeric<int> safe_new_count = m_PointCount;
+  safe_new_count += addPoints;
+  int new_count = safe_new_count.ValueOrDie();
+  AllocPointCount(new_count);
+  m_PointCount = new_count;
+}
+void CFX_PathData::Append(const CFX_PathData* pSrc,
+                          const CFX_AffineMatrix* pMatrix) {
+  int old_count = m_PointCount;
+  AddPointCount(pSrc->m_PointCount);
+  FXSYS_memcpy(m_pPoints + old_count, pSrc->m_pPoints,
+               pSrc->m_PointCount * sizeof(FX_PATHPOINT));
+  if (pMatrix) {
+    for (int i = 0; i < pSrc->m_PointCount; i++) {
+      pMatrix->Transform(m_pPoints[old_count + i].m_PointX,
+                         m_pPoints[old_count + i].m_PointY);
+    }
+  }
+}
+void CFX_PathData::SetPoint(int index, FX_FLOAT x, FX_FLOAT y, int flag) {
+  ASSERT(index < m_PointCount);
+  m_pPoints[index].m_PointX = x;
+  m_pPoints[index].m_PointY = y;
+  m_pPoints[index].m_Flag = flag;
+}
+void CFX_PathData::AppendRect(FX_FLOAT left,
+                              FX_FLOAT bottom,
+                              FX_FLOAT right,
+                              FX_FLOAT top) {
+  int old_count = m_PointCount;
+  AddPointCount(5);
+  FX_PATHPOINT* pPoints = m_pPoints + old_count;
+  pPoints[0].m_PointX = pPoints[1].m_PointX = pPoints[4].m_PointX = left;
+  pPoints[2].m_PointX = pPoints[3].m_PointX = right;
+  pPoints[0].m_PointY = pPoints[3].m_PointY = pPoints[4].m_PointY = bottom;
+  pPoints[1].m_PointY = pPoints[2].m_PointY = top;
+  pPoints[0].m_Flag = FXPT_MOVETO;
+  pPoints[1].m_Flag = pPoints[2].m_Flag = pPoints[3].m_Flag = FXPT_LINETO;
+  pPoints[4].m_Flag = FXPT_LINETO | FXPT_CLOSEFIGURE;
+}
+CFX_FloatRect CFX_PathData::GetBoundingBox() const {
+  CFX_FloatRect rect;
+  if (m_PointCount) {
+    rect.InitRect(m_pPoints[0].m_PointX, m_pPoints[0].m_PointY);
+    for (int i = 1; i < m_PointCount; i++) {
+      rect.UpdateRect(m_pPoints[i].m_PointX, m_pPoints[i].m_PointY);
+    }
+  }
+  return rect;
+}
+static void _UpdateLineEndPoints(CFX_FloatRect& rect,
+                                 FX_FLOAT start_x,
+                                 FX_FLOAT start_y,
+                                 FX_FLOAT end_x,
+                                 FX_FLOAT end_y,
+                                 FX_FLOAT hw) {
+  if (start_x == end_x) {
+    if (start_y == end_y) {
+      rect.UpdateRect(end_x + hw, end_y + hw);
+      rect.UpdateRect(end_x - hw, end_y - hw);
+      return;
+    }
+    FX_FLOAT point_y;
+    if (end_y < start_y) {
+      point_y = end_y - hw;
+    } else {
+      point_y = end_y + hw;
+    }
+    rect.UpdateRect(end_x + hw, point_y);
+    rect.UpdateRect(end_x - hw, point_y);
+    return;
+  }
+  if (start_y == end_y) {
+    FX_FLOAT point_x;
+    if (end_x < start_x) {
+      point_x = end_x - hw;
+    } else {
+      point_x = end_x + hw;
+    }
+    rect.UpdateRect(point_x, end_y + hw);
+    rect.UpdateRect(point_x, end_y - hw);
+    return;
+  }
+  FX_FLOAT dx = end_x - start_x;
+  FX_FLOAT dy = end_y - start_y;
+  FX_FLOAT ll = FXSYS_sqrt2(dx, dy);
+  FX_FLOAT mx = end_x + hw * dx / ll;
+  FX_FLOAT my = end_y + hw * dy / ll;
+  FX_FLOAT dx1 = hw * dy / ll;
+  FX_FLOAT dy1 = hw * dx / ll;
+  rect.UpdateRect(mx - dx1, my + dy1);
+  rect.UpdateRect(mx + dx1, my - dy1);
+}
+static void _UpdateLineJoinPoints(CFX_FloatRect& rect,
+                                  FX_FLOAT start_x,
+                                  FX_FLOAT start_y,
+                                  FX_FLOAT middle_x,
+                                  FX_FLOAT middle_y,
+                                  FX_FLOAT end_x,
+                                  FX_FLOAT end_y,
+                                  FX_FLOAT half_width,
+                                  FX_FLOAT miter_limit) {
+  FX_FLOAT start_k = 0, start_c = 0, end_k = 0, end_c = 0, start_len = 0,
+           start_dc = 0, end_len = 0, end_dc = 0;
+  FX_BOOL bStartVert = FXSYS_fabs(start_x - middle_x) < 1.0f / 20;
+  FX_BOOL bEndVert = FXSYS_fabs(middle_x - end_x) < 1.0f / 20;
+  if (bStartVert && bEndVert) {
+    int start_dir = middle_y > start_y ? 1 : -1;
+    FX_FLOAT point_y = middle_y + half_width * start_dir;
+    rect.UpdateRect(middle_x + half_width, point_y);
+    rect.UpdateRect(middle_x - half_width, point_y);
+    return;
+  }
+  if (!bStartVert) {
+    start_k = FXSYS_Div(middle_y - start_y, middle_x - start_x);
+    start_c = middle_y - FXSYS_Mul(start_k, middle_x);
+    start_len = FXSYS_sqrt2(start_x - middle_x, start_y - middle_y);
+    start_dc = (FX_FLOAT)FXSYS_fabs(
+        FXSYS_MulDiv(half_width, start_len, start_x - middle_x));
+  }
+  if (!bEndVert) {
+    end_k = FXSYS_Div(end_y - middle_y, end_x - middle_x);
+    end_c = middle_y - FXSYS_Mul(end_k, middle_x);
+    end_len = FXSYS_sqrt2(end_x - middle_x, end_y - middle_y);
+    end_dc = (FX_FLOAT)FXSYS_fabs(
+        FXSYS_MulDiv(half_width, end_len, end_x - middle_x));
+  }
+  if (bStartVert) {
+    FX_FLOAT outside_x = start_x;
+    if (end_x < start_x) {
+      outside_x += half_width;
+    } else {
+      outside_x -= half_width;
+    }
+    FX_FLOAT outside_y;
+    if (start_y < FXSYS_Mul(end_k, start_x) + end_c) {
+      outside_y = FXSYS_Mul(end_k, outside_x) + end_c + end_dc;
+    } else {
+      outside_y = FXSYS_Mul(end_k, outside_x) + end_c - end_dc;
+    }
+    rect.UpdateRect(outside_x, outside_y);
+    return;
+  }
+  if (bEndVert) {
+    FX_FLOAT outside_x = end_x;
+    if (start_x < end_x) {
+      outside_x += half_width;
+    } else {
+      outside_x -= half_width;
+    }
+    FX_FLOAT outside_y;
+    if (end_y < FXSYS_Mul(start_k, end_x) + start_c) {
+      outside_y = FXSYS_Mul(start_k, outside_x) + start_c + start_dc;
+    } else {
+      outside_y = FXSYS_Mul(start_k, outside_x) + start_c - start_dc;
+    }
+    rect.UpdateRect(outside_x, outside_y);
+    return;
+  }
+  if (FXSYS_fabs(start_k - end_k) < 1.0f / 20) {
+    int start_dir = middle_x > start_x ? 1 : -1;
+    int end_dir = end_x > middle_x ? 1 : -1;
+    if (start_dir == end_dir) {
+      _UpdateLineEndPoints(rect, middle_x, middle_y, end_x, end_y, half_width);
+    } else {
+      _UpdateLineEndPoints(rect, start_x, start_y, middle_x, middle_y,
+                           half_width);
+    }
+    return;
+  }
+  FX_FLOAT start_outside_c = start_c;
+  if (end_y < FXSYS_Mul(start_k, end_x) + start_c) {
+    start_outside_c += start_dc;
+  } else {
+    start_outside_c -= start_dc;
+  }
+  FX_FLOAT end_outside_c = end_c;
+  if (start_y < FXSYS_Mul(end_k, start_x) + end_c) {
+    end_outside_c += end_dc;
+  } else {
+    end_outside_c -= end_dc;
+  }
+  FX_FLOAT join_x = FXSYS_Div(end_outside_c - start_outside_c, start_k - end_k);
+  FX_FLOAT join_y = FXSYS_Mul(start_k, join_x) + start_outside_c;
+  rect.UpdateRect(join_x, join_y);
+}
+CFX_FloatRect CFX_PathData::GetBoundingBox(FX_FLOAT line_width,
+                                           FX_FLOAT miter_limit) const {
+  CFX_FloatRect rect(100000 * 1.0f, 100000 * 1.0f, -100000 * 1.0f,
+                     -100000 * 1.0f);
+  int iPoint = 0;
+  FX_FLOAT half_width = line_width;
+  int iStartPoint, iEndPoint, iMiddlePoint;
+  FX_BOOL bJoin;
+  while (iPoint < m_PointCount) {
+    if (m_pPoints[iPoint].m_Flag == FXPT_MOVETO) {
+      iStartPoint = iPoint + 1;
+      iEndPoint = iPoint;
+      bJoin = FALSE;
+    } else {
+      if (m_pPoints[iPoint].m_Flag == FXPT_BEZIERTO) {
+        rect.UpdateRect(m_pPoints[iPoint].m_PointX, m_pPoints[iPoint].m_PointY);
+        rect.UpdateRect(m_pPoints[iPoint + 1].m_PointX,
+                        m_pPoints[iPoint + 1].m_PointY);
+        iPoint += 2;
+      }
+      if (iPoint == m_PointCount - 1 ||
+          m_pPoints[iPoint + 1].m_Flag == FXPT_MOVETO) {
+        iStartPoint = iPoint - 1;
+        iEndPoint = iPoint;
+        bJoin = FALSE;
+      } else {
+        iStartPoint = iPoint - 1;
+        iMiddlePoint = iPoint;
+        iEndPoint = iPoint + 1;
+        bJoin = TRUE;
+      }
+    }
+    FX_FLOAT start_x = m_pPoints[iStartPoint].m_PointX;
+    FX_FLOAT start_y = m_pPoints[iStartPoint].m_PointY;
+    FX_FLOAT end_x = m_pPoints[iEndPoint].m_PointX;
+    FX_FLOAT end_y = m_pPoints[iEndPoint].m_PointY;
+    if (bJoin) {
+      FX_FLOAT middle_x = m_pPoints[iMiddlePoint].m_PointX;
+      FX_FLOAT middle_y = m_pPoints[iMiddlePoint].m_PointY;
+      _UpdateLineJoinPoints(rect, start_x, start_y, middle_x, middle_y, end_x,
+                            end_y, half_width, miter_limit);
+    } else {
+      _UpdateLineEndPoints(rect, start_x, start_y, end_x, end_y, half_width);
+    }
+    iPoint++;
+  }
+  return rect;
+}
+void CFX_PathData::Transform(const CFX_AffineMatrix* pMatrix) {
+  if (pMatrix == NULL) {
+    return;
+  }
+  for (int i = 0; i < m_PointCount; i++) {
+    pMatrix->Transform(m_pPoints[i].m_PointX, m_pPoints[i].m_PointY);
+  }
+}
+FX_BOOL CFX_PathData::GetZeroAreaPath(CFX_PathData& NewPath,
+                                      CFX_AffineMatrix* pMatrix,
+                                      FX_BOOL& bThin,
+                                      FX_BOOL bAdjust) const {
+  if (m_PointCount < 3) {
+    return FALSE;
+  }
+  if (m_PointCount == 3 && (m_pPoints[0].m_Flag & FXPT_TYPE) == FXPT_MOVETO &&
+      (m_pPoints[1].m_Flag & FXPT_TYPE) == FXPT_LINETO &&
+      (m_pPoints[2].m_Flag & FXPT_TYPE) == FXPT_LINETO &&
+      m_pPoints[0].m_PointX == m_pPoints[2].m_PointX &&
+      m_pPoints[0].m_PointY == m_pPoints[2].m_PointY) {
+    NewPath.AddPointCount(2);
+    if (bAdjust) {
+      if (pMatrix) {
+        FX_FLOAT x = m_pPoints[0].m_PointX, y = m_pPoints[0].m_PointY;
+        pMatrix->TransformPoint(x, y);
+        x = (int)x + 0.5f;
+        y = (int)y + 0.5f;
+        NewPath.SetPoint(0, x, y, FXPT_MOVETO);
+        x = m_pPoints[1].m_PointX, y = m_pPoints[1].m_PointY;
+        pMatrix->TransformPoint(x, y);
+        x = (int)x + 0.5f;
+        y = (int)y + 0.5f;
+        NewPath.SetPoint(1, x, y, FXPT_LINETO);
+        pMatrix->SetIdentity();
+      } else {
+        FX_FLOAT x = (int)m_pPoints[0].m_PointX + 0.5f,
+                 y = (int)m_pPoints[0].m_PointY + 0.5f;
+        NewPath.SetPoint(0, x, y, FXPT_MOVETO);
+        x = (int)m_pPoints[1].m_PointX + 0.5f,
+        y = (int)m_pPoints[1].m_PointY + 0.5f;
+        NewPath.SetPoint(1, x, y, FXPT_LINETO);
+      }
+    } else {
+      NewPath.SetPoint(0, m_pPoints[0].m_PointX, m_pPoints[0].m_PointY,
+                       FXPT_MOVETO);
+      NewPath.SetPoint(1, m_pPoints[1].m_PointX, m_pPoints[1].m_PointY,
+                       FXPT_LINETO);
+    }
+    if (m_pPoints[0].m_PointX != m_pPoints[1].m_PointX &&
+        m_pPoints[0].m_PointY != m_pPoints[1].m_PointY) {
+      bThin = TRUE;
+    }
+    return TRUE;
+  }
+  if (((m_PointCount > 3) && (m_PointCount % 2))) {
+    int mid = m_PointCount / 2;
+    FX_BOOL bZeroArea = FALSE;
+    CFX_PathData t_path;
+    for (int i = 0; i < mid; i++) {
+      if (!(m_pPoints[mid - i - 1].m_PointX ==
+                m_pPoints[mid + i + 1].m_PointX &&
+            m_pPoints[mid - i - 1].m_PointY ==
+                m_pPoints[mid + i + 1].m_PointY &&
+            ((m_pPoints[mid - i - 1].m_Flag & FXPT_TYPE) != FXPT_BEZIERTO &&
+             (m_pPoints[mid + i + 1].m_Flag & FXPT_TYPE) != FXPT_BEZIERTO))) {
+        bZeroArea = TRUE;
+        break;
+      }
+      int new_count = t_path.GetPointCount();
+      t_path.AddPointCount(2);
+      t_path.SetPoint(new_count, m_pPoints[mid - i].m_PointX,
+                      m_pPoints[mid - i].m_PointY, FXPT_MOVETO);
+      t_path.SetPoint(new_count + 1, m_pPoints[mid - i - 1].m_PointX,
+                      m_pPoints[mid - i - 1].m_PointY, FXPT_LINETO);
+    }
+    if (!bZeroArea) {
+      NewPath.Append(&t_path, NULL);
+      bThin = TRUE;
+      return TRUE;
+    }
+  }
+  int stratPoint = 0;
+  int next = 0, i;
+  for (i = 0; i < m_PointCount; i++) {
+    int point_type = m_pPoints[i].m_Flag & FXPT_TYPE;
+    if (point_type == FXPT_MOVETO) {
+      stratPoint = i;
+    } else if (point_type == FXPT_LINETO) {
+      next = (i + 1 - stratPoint) % (m_PointCount - stratPoint) + stratPoint;
+      if ((m_pPoints[next].m_Flag & FXPT_TYPE) != FXPT_BEZIERTO &&
+          (m_pPoints[next].m_Flag & FXPT_TYPE) != FXPT_MOVETO) {
+        if ((m_pPoints[i - 1].m_PointX == m_pPoints[i].m_PointX &&
+             m_pPoints[i].m_PointX == m_pPoints[next].m_PointX) &&
+            ((m_pPoints[i].m_PointY - m_pPoints[i - 1].m_PointY) *
+                 (m_pPoints[i].m_PointY - m_pPoints[next].m_PointY) >
+             0)) {
+          int pre = i;
+          if (FXSYS_fabs(m_pPoints[i].m_PointY - m_pPoints[i - 1].m_PointY) <
+              FXSYS_fabs(m_pPoints[i].m_PointY - m_pPoints[next].m_PointY)) {
+            pre--;
+            next--;
+          }
+          int new_count = NewPath.GetPointCount();
+          NewPath.AddPointCount(2);
+          NewPath.SetPoint(new_count, m_pPoints[pre].m_PointX,
+                           m_pPoints[pre].m_PointY, FXPT_MOVETO);
+          NewPath.SetPoint(new_count + 1, m_pPoints[next].m_PointX,
+                           m_pPoints[next].m_PointY, FXPT_LINETO);
+        } else if ((m_pPoints[i - 1].m_PointY == m_pPoints[i].m_PointY &&
+                    m_pPoints[i].m_PointY == m_pPoints[next].m_PointY) &&
+                   ((m_pPoints[i].m_PointX - m_pPoints[i - 1].m_PointX) *
+                        (m_pPoints[i].m_PointX - m_pPoints[next].m_PointX) >
+                    0)) {
+          int pre = i;
+          if (FXSYS_fabs(m_pPoints[i].m_PointX - m_pPoints[i - 1].m_PointX) <
+              FXSYS_fabs(m_pPoints[i].m_PointX - m_pPoints[next].m_PointX)) {
+            pre--;
+            next--;
+          }
+          int new_count = NewPath.GetPointCount();
+          NewPath.AddPointCount(2);
+          NewPath.SetPoint(new_count, m_pPoints[pre].m_PointX,
+                           m_pPoints[pre].m_PointY, FXPT_MOVETO);
+          NewPath.SetPoint(new_count + 1, m_pPoints[next].m_PointX,
+                           m_pPoints[next].m_PointY, FXPT_LINETO);
+        } else if ((m_pPoints[i - 1].m_Flag & FXPT_TYPE) == FXPT_MOVETO &&
+                   (m_pPoints[next].m_Flag & FXPT_TYPE) == FXPT_LINETO &&
+                   m_pPoints[i - 1].m_PointX == m_pPoints[next].m_PointX &&
+                   m_pPoints[i - 1].m_PointY == m_pPoints[next].m_PointY &&
+                   m_pPoints[next].m_Flag & FXPT_CLOSEFIGURE) {
+          int new_count = NewPath.GetPointCount();
+          NewPath.AddPointCount(2);
+          NewPath.SetPoint(new_count, m_pPoints[i - 1].m_PointX,
+                           m_pPoints[i - 1].m_PointY, FXPT_MOVETO);
+          NewPath.SetPoint(new_count + 1, m_pPoints[i].m_PointX,
+                           m_pPoints[i].m_PointY, FXPT_LINETO);
+          bThin = TRUE;
         }
-    }
-}
-void CFX_ClipRgn::IntersectMaskF(int left, int top, CFX_DIBitmapRef Mask)
-{
-    const CFX_DIBitmap* mask_dib = Mask;
-    ASSERT(mask_dib->GetFormat() == FXDIB_8bppMask);
-    FX_RECT mask_box(left, top, left + mask_dib->GetWidth(), top + mask_dib->GetHeight());
-    if (m_Type == RectI) {
-        IntersectMaskRect(m_Box, mask_box, Mask);
-        return;
-    }
-    if (m_Type == MaskF) {
-        FX_RECT new_box = m_Box;
-        new_box.Intersect(mask_box);
-        if (new_box.IsEmpty()) {
-            m_Type = RectI;
-            m_Mask.SetNull();
-            m_Box = new_box;
-            return;
-        }
-        CFX_DIBitmapRef new_mask;
-        CFX_DIBitmap* new_dib = new_mask.New();
-        if (!new_dib) {
-            return;
-        }
-        new_dib->Create(new_box.Width(), new_box.Height(), FXDIB_8bppMask);
-        const CFX_DIBitmap* old_dib = m_Mask;
-        for (int row = new_box.top; row < new_box.bottom; row ++) {
-            uint8_t* old_scan = old_dib->GetBuffer() + (row - m_Box.top) * old_dib->GetPitch();
-            uint8_t* mask_scan = mask_dib->GetBuffer() + (row - top) * mask_dib->GetPitch();
-            uint8_t* new_scan = new_dib->GetBuffer() + (row - new_box.top) * new_dib->GetPitch();
-            for (int col = new_box.left; col < new_box.right; col ++) {
-                new_scan[col - new_box.left] = old_scan[col - m_Box.left] * mask_scan[col - left] / 255;
-            }
-        }
-        m_Box = new_box;
-        m_Mask = new_mask;
-        return;
-    }
-    ASSERT(FALSE);
-}
-CFX_PathData::CFX_PathData()
-{
-    m_PointCount = m_AllocCount = 0;
-    m_pPoints = NULL;
-}
-CFX_PathData::~CFX_PathData()
-{
-    if (m_pPoints) {
-        FX_Free(m_pPoints);
-    }
-}
-void CFX_PathData::SetPointCount(int nPoints)
-{
-    m_PointCount = nPoints;
-    if (m_AllocCount < nPoints) {
-        if (m_pPoints) {
-            FX_Free(m_pPoints);
-            m_pPoints = NULL;
-        }
-        m_pPoints = FX_Alloc(FX_PATHPOINT, nPoints);
-        m_AllocCount = nPoints;
-    }
-}
-void CFX_PathData::AllocPointCount(int nPoints)
-{
-    if (m_AllocCount < nPoints) {
-        FX_PATHPOINT* pNewBuf = FX_Alloc(FX_PATHPOINT, nPoints);
-        if (m_PointCount) {
-            FXSYS_memcpy(pNewBuf, m_pPoints, m_PointCount * sizeof(FX_PATHPOINT));
-        }
-        if (m_pPoints) {
-            FX_Free(m_pPoints);
-        }
-        m_pPoints = pNewBuf;
-        m_AllocCount = nPoints;
-    }
-}
-CFX_PathData::CFX_PathData(const CFX_PathData& src)
-{
-    m_PointCount = m_AllocCount = src.m_PointCount;
-    m_pPoints = FX_Alloc(FX_PATHPOINT, src.m_PointCount);
-    FXSYS_memcpy(m_pPoints, src.m_pPoints, sizeof(FX_PATHPOINT) * m_PointCount);
-}
-void CFX_PathData::TrimPoints(int nPoints)
-{
-    if (m_PointCount <= nPoints) {
-        return;
-    }
-    SetPointCount(nPoints);
-}
-void CFX_PathData::AddPointCount(int addPoints)
-{
-    pdfium::base::CheckedNumeric<int> safe_new_count = m_PointCount;
-    safe_new_count += addPoints;
-    int new_count = safe_new_count.ValueOrDie();
-    AllocPointCount(new_count);
-    m_PointCount = new_count;
-}
-void CFX_PathData::Append(const CFX_PathData* pSrc, const CFX_AffineMatrix* pMatrix)
-{
-    int old_count = m_PointCount;
-    AddPointCount(pSrc->m_PointCount);
-    FXSYS_memcpy(m_pPoints + old_count, pSrc->m_pPoints, pSrc->m_PointCount * sizeof(FX_PATHPOINT));
-    if (pMatrix) {
-        for (int i = 0; i < pSrc->m_PointCount; i ++) {
-            pMatrix->Transform(m_pPoints[old_count + i].m_PointX, m_pPoints[old_count + i].m_PointY);
-        }
-    }
-}
-void CFX_PathData::SetPoint(int index, FX_FLOAT x, FX_FLOAT y, int flag)
-{
-    ASSERT(index < m_PointCount);
-    m_pPoints[index].m_PointX = x;
-    m_pPoints[index].m_PointY = y;
-    m_pPoints[index].m_Flag = flag;
-}
-void CFX_PathData::AppendRect(FX_FLOAT left, FX_FLOAT bottom, FX_FLOAT right, FX_FLOAT top)
-{
-    int old_count = m_PointCount;
-    AddPointCount(5);
-    FX_PATHPOINT* pPoints = m_pPoints + old_count;
-    pPoints[0].m_PointX = pPoints[1].m_PointX = pPoints[4].m_PointX = left;
-    pPoints[2].m_PointX = pPoints[3].m_PointX = right;
-    pPoints[0].m_PointY = pPoints[3].m_PointY = pPoints[4].m_PointY = bottom;
-    pPoints[1].m_PointY = pPoints[2].m_PointY = top;
-    pPoints[0].m_Flag = FXPT_MOVETO;
-    pPoints[1].m_Flag = pPoints[2].m_Flag = pPoints[3].m_Flag = FXPT_LINETO;
-    pPoints[4].m_Flag = FXPT_LINETO | FXPT_CLOSEFIGURE;
-}
-CFX_FloatRect CFX_PathData::GetBoundingBox() const
-{
-    CFX_FloatRect rect;
-    if (m_PointCount) {
-        rect.InitRect(m_pPoints[0].m_PointX, m_pPoints[0].m_PointY);
-        for (int i = 1; i < m_PointCount; i ++) {
-            rect.UpdateRect(m_pPoints[i].m_PointX, m_pPoints[i].m_PointY);
-        }
-    }
-    return rect;
-}
-static void _UpdateLineEndPoints(CFX_FloatRect& rect, FX_FLOAT start_x, FX_FLOAT start_y, FX_FLOAT end_x, FX_FLOAT end_y,
-                                 FX_FLOAT hw)
-{
-    if (start_x == end_x) {
-        if (start_y == end_y) {
-            rect.UpdateRect(end_x + hw, end_y + hw);
-            rect.UpdateRect(end_x - hw, end_y - hw);
-            return;
-        }
-        FX_FLOAT point_y;
-        if (end_y < start_y) {
-            point_y = end_y - hw;
-        } else {
-            point_y = end_y + hw;
-        }
-        rect.UpdateRect(end_x + hw, point_y);
-        rect.UpdateRect(end_x - hw, point_y);
-        return;
-    }
-    if (start_y == end_y) {
-        FX_FLOAT point_x;
-        if (end_x < start_x) {
-            point_x = end_x - hw;
-        } else {
-            point_x = end_x + hw;
-        }
-        rect.UpdateRect(point_x, end_y + hw);
-        rect.UpdateRect(point_x, end_y - hw);
-        return;
-    }
-    FX_FLOAT dx = end_x - start_x;
-    FX_FLOAT dy = end_y - start_y;
-    FX_FLOAT ll = FXSYS_sqrt2(dx, dy);
-    FX_FLOAT mx = end_x + hw * dx / ll;
-    FX_FLOAT my = end_y + hw * dy / ll;
-    FX_FLOAT dx1 = hw * dy / ll;
-    FX_FLOAT dy1 = hw * dx / ll;
-    rect.UpdateRect(mx - dx1, my + dy1);
-    rect.UpdateRect(mx + dx1, my - dy1);
-}
-static void _UpdateLineJoinPoints(CFX_FloatRect& rect, FX_FLOAT start_x, FX_FLOAT start_y,
-                                  FX_FLOAT middle_x, FX_FLOAT middle_y, FX_FLOAT end_x, FX_FLOAT end_y,
-                                  FX_FLOAT half_width, FX_FLOAT miter_limit)
-{
-    FX_FLOAT start_k = 0, start_c = 0, end_k = 0, end_c = 0, start_len = 0, start_dc = 0, end_len = 0, end_dc = 0;
-    FX_BOOL bStartVert = FXSYS_fabs(start_x - middle_x) < 1.0f / 20;
-    FX_BOOL bEndVert = FXSYS_fabs(middle_x - end_x) < 1.0f / 20;
-    if (bStartVert && bEndVert) {
-        int start_dir = middle_y > start_y ? 1 : -1;
-        FX_FLOAT point_y = middle_y + half_width * start_dir;
-        rect.UpdateRect(middle_x + half_width, point_y);
-        rect.UpdateRect(middle_x - half_width, point_y);
-        return;
-    }
-    if (!bStartVert) {
-        start_k = FXSYS_Div(middle_y - start_y, middle_x - start_x);
-        start_c = middle_y - FXSYS_Mul(start_k, middle_x);
-        start_len = FXSYS_sqrt2(start_x - middle_x, start_y - middle_y);
-        start_dc = (FX_FLOAT)FXSYS_fabs(FXSYS_MulDiv(half_width, start_len, start_x - middle_x));
-    }
-    if (!bEndVert) {
-        end_k = FXSYS_Div(end_y - middle_y, end_x - middle_x);
-        end_c = middle_y - FXSYS_Mul(end_k, middle_x);
-        end_len = FXSYS_sqrt2(end_x - middle_x, end_y - middle_y);
-        end_dc = (FX_FLOAT)FXSYS_fabs(FXSYS_MulDiv(half_width, end_len, end_x - middle_x));
-    }
-    if (bStartVert) {
-        FX_FLOAT outside_x = start_x;
-        if (end_x < start_x) {
-            outside_x += half_width;
-        } else {
-            outside_x -= half_width;
-        }
-        FX_FLOAT outside_y;
-        if (start_y < FXSYS_Mul(end_k, start_x) + end_c) {
-            outside_y = FXSYS_Mul(end_k, outside_x) + end_c + end_dc;
-        } else {
-            outside_y = FXSYS_Mul(end_k, outside_x) + end_c - end_dc;
-        }
-        rect.UpdateRect(outside_x, outside_y);
-        return;
-    }
-    if (bEndVert) {
-        FX_FLOAT outside_x = end_x;
-        if (start_x < end_x) {
-            outside_x += half_width;
-        } else {
-            outside_x -= half_width;
-        }
-        FX_FLOAT outside_y;
-        if (end_y < FXSYS_Mul(start_k, end_x) + start_c) {
-            outside_y = FXSYS_Mul(start_k, outside_x) + start_c + start_dc;
-        } else {
-            outside_y = FXSYS_Mul(start_k, outside_x) + start_c - start_dc;
-        }
-        rect.UpdateRect(outside_x, outside_y);
-        return;
-    }
-    if (FXSYS_fabs(start_k - end_k) < 1.0f / 20) {
-        int start_dir = middle_x > start_x ? 1 : -1;
-        int end_dir = end_x > middle_x ? 1 : -1;
-        if (start_dir == end_dir) {
-            _UpdateLineEndPoints(rect, middle_x, middle_y, end_x, end_y, half_width);
-        } else {
-            _UpdateLineEndPoints(rect, start_x, start_y, middle_x, middle_y, half_width);
-        }
-        return;
-    }
-    FX_FLOAT start_outside_c = start_c;
-    if (end_y < FXSYS_Mul(start_k, end_x) + start_c) {
-        start_outside_c += start_dc;
-    } else {
-        start_outside_c -= start_dc;
-    }
-    FX_FLOAT end_outside_c = end_c;
-    if (start_y < FXSYS_Mul(end_k, start_x) + end_c) {
-        end_outside_c += end_dc;
-    } else {
-        end_outside_c -= end_dc;
-    }
-    FX_FLOAT join_x = FXSYS_Div(end_outside_c - start_outside_c, start_k - end_k);
-    FX_FLOAT join_y = FXSYS_Mul(start_k, join_x) + start_outside_c;
-    rect.UpdateRect(join_x, join_y);
-}
-CFX_FloatRect CFX_PathData::GetBoundingBox(FX_FLOAT line_width, FX_FLOAT miter_limit) const
-{
-    CFX_FloatRect rect(100000 * 1.0f, 100000 * 1.0f, -100000 * 1.0f, -100000 * 1.0f);
-    int iPoint = 0;
-    FX_FLOAT half_width = line_width;
-    int iStartPoint, iEndPoint, iMiddlePoint;
-    FX_BOOL bJoin;
-    while (iPoint < m_PointCount) {
-        if (m_pPoints[iPoint].m_Flag == FXPT_MOVETO) {
-            iStartPoint = iPoint + 1;
-            iEndPoint = iPoint;
-            bJoin = FALSE;
-        } else {
-            if (m_pPoints[iPoint].m_Flag == FXPT_BEZIERTO) {
-                rect.UpdateRect(m_pPoints[iPoint].m_PointX, m_pPoints[iPoint].m_PointY);
-                rect.UpdateRect(m_pPoints[iPoint + 1].m_PointX, m_pPoints[iPoint + 1].m_PointY);
-                iPoint += 2;
-            }
-            if (iPoint == m_PointCount - 1 || m_pPoints[iPoint + 1].m_Flag == FXPT_MOVETO) {
-                iStartPoint = iPoint - 1;
-                iEndPoint = iPoint;
-                bJoin = FALSE;
-            } else {
-                iStartPoint = iPoint - 1;
-                iMiddlePoint = iPoint;
-                iEndPoint = iPoint + 1;
-                bJoin = TRUE;
-            }
-        }
-        FX_FLOAT start_x = m_pPoints[iStartPoint].m_PointX;
-        FX_FLOAT start_y = m_pPoints[iStartPoint].m_PointY;
-        FX_FLOAT end_x = m_pPoints[iEndPoint].m_PointX;
-        FX_FLOAT end_y = m_pPoints[iEndPoint].m_PointY;
-        if (bJoin) {
-            FX_FLOAT middle_x = m_pPoints[iMiddlePoint].m_PointX;
-            FX_FLOAT middle_y = m_pPoints[iMiddlePoint].m_PointY;
-            _UpdateLineJoinPoints(rect, start_x, start_y, middle_x, middle_y, end_x, end_y, half_width, miter_limit);
-        } else {
-            _UpdateLineEndPoints(rect, start_x, start_y, end_x, end_y, half_width);
-        }
-        iPoint ++;
-    }
-    return rect;
-}
-void CFX_PathData::Transform(const CFX_AffineMatrix* pMatrix)
-{
-    if (pMatrix == NULL) {
-        return;
-    }
-    for (int i = 0; i < m_PointCount; i ++) {
-        pMatrix->Transform(m_pPoints[i].m_PointX, m_pPoints[i].m_PointY);
-    }
-}
-FX_BOOL CFX_PathData::GetZeroAreaPath(CFX_PathData& NewPath, CFX_AffineMatrix* pMatrix, FX_BOOL&bThin, FX_BOOL bAdjust) const
-{
-    if (m_PointCount < 3) {
+      }
+    } else if (point_type == FXPT_BEZIERTO) {
+      i += 2;
+      continue;
+    }
+  }
+  if (m_PointCount > 3 && NewPath.GetPointCount()) {
+    bThin = TRUE;
+  }
+  if (NewPath.GetPointCount() == 0) {
+    return FALSE;
+  }
+  return TRUE;
+}
+FX_BOOL CFX_PathData::IsRect() const {
+  if (m_PointCount != 5 && m_PointCount != 4) {
+    return FALSE;
+  }
+  if ((m_PointCount == 5 && (m_pPoints[0].m_PointX != m_pPoints[4].m_PointX ||
+                             m_pPoints[0].m_PointY != m_pPoints[4].m_PointY)) ||
+      (m_pPoints[0].m_PointX == m_pPoints[2].m_PointX &&
+       m_pPoints[0].m_PointY == m_pPoints[2].m_PointY) ||
+      (m_pPoints[1].m_PointX == m_pPoints[3].m_PointX &&
+       m_pPoints[1].m_PointY == m_pPoints[3].m_PointY)) {
+    return FALSE;
+  }
+  if (m_pPoints[0].m_PointX != m_pPoints[3].m_PointX &&
+      m_pPoints[0].m_PointY != m_pPoints[3].m_PointY) {
+    return FALSE;
+  }
+  for (int i = 1; i < 4; i++) {
+    if ((m_pPoints[i].m_Flag & FXPT_TYPE) != FXPT_LINETO) {
+      return FALSE;
+    }
+    if (m_pPoints[i].m_PointX != m_pPoints[i - 1].m_PointX &&
+        m_pPoints[i].m_PointY != m_pPoints[i - 1].m_PointY) {
+      return FALSE;
+    }
+  }
+  return m_PointCount == 5 || (m_pPoints[3].m_Flag & FXPT_CLOSEFIGURE);
+}
+FX_BOOL CFX_PathData::IsRect(const CFX_AffineMatrix* pMatrix,
+                             CFX_FloatRect* pRect) const {
+  if (pMatrix == NULL) {
+    if (!IsRect()) {
+      return FALSE;
+    }
+    if (pRect) {
+      pRect->left = m_pPoints[0].m_PointX;
+      pRect->right = m_pPoints[2].m_PointX;
+      pRect->bottom = m_pPoints[0].m_PointY;
+      pRect->top = m_pPoints[2].m_PointY;
+      pRect->Normalize();
+    }
+    return TRUE;
+  }
+  if (m_PointCount != 5 && m_PointCount != 4) {
+    return FALSE;
+  }
+  if ((m_PointCount == 5 && (m_pPoints[0].m_PointX != m_pPoints[4].m_PointX ||
+                             m_pPoints[0].m_PointY != m_pPoints[4].m_PointY)) ||
+      (m_pPoints[1].m_PointX == m_pPoints[3].m_PointX &&
+       m_pPoints[1].m_PointY == m_pPoints[3].m_PointY)) {
+    return FALSE;
+  }
+  if (m_PointCount == 4 && m_pPoints[0].m_PointX != m_pPoints[3].m_PointX &&
+      m_pPoints[0].m_PointY != m_pPoints[3].m_PointY) {
+    return FALSE;
+  }
+  FX_FLOAT x[5], y[5];
+  for (int i = 0; i < m_PointCount; i++) {
+    pMatrix->Transform(m_pPoints[i].m_PointX, m_pPoints[i].m_PointY, x[i],
+                       y[i]);
+    if (i) {
+      if ((m_pPoints[i].m_Flag & FXPT_TYPE) != FXPT_LINETO) {
         return FALSE;
-    }
-    if (m_PointCount == 3 && (m_pPoints[0].m_Flag & FXPT_TYPE) == FXPT_MOVETO &&
-            (m_pPoints[1].m_Flag & FXPT_TYPE) == FXPT_LINETO && (m_pPoints[2].m_Flag & FXPT_TYPE) == FXPT_LINETO
-            && m_pPoints[0].m_PointX == m_pPoints[2].m_PointX && m_pPoints[0].m_PointY == m_pPoints[2].m_PointY) {
-        NewPath.AddPointCount(2);
-        if (bAdjust) {
-            if (pMatrix) {
-                FX_FLOAT x = m_pPoints[0].m_PointX, y = m_pPoints[0].m_PointY;
-                pMatrix->TransformPoint(x, y);
-                x = (int)x + 0.5f;
-                y = (int)y + 0.5f;
-                NewPath.SetPoint(0, x, y, FXPT_MOVETO);
-                x = m_pPoints[1].m_PointX, y = m_pPoints[1].m_PointY;
-                pMatrix->TransformPoint(x, y);
-                x = (int)x + 0.5f;
-                y = (int)y + 0.5f;
-                NewPath.SetPoint(1, x, y, FXPT_LINETO);
-                pMatrix->SetIdentity();
-            } else {
-                FX_FLOAT x = (int)m_pPoints[0].m_PointX + 0.5f, y = (int)m_pPoints[0].m_PointY + 0.5f;
-                NewPath.SetPoint(0, x, y, FXPT_MOVETO);
-                x = (int)m_pPoints[1].m_PointX + 0.5f, y = (int)m_pPoints[1].m_PointY + 0.5f;
-                NewPath.SetPoint(1, x, y, FXPT_LINETO);
-            }
-        } else {
-            NewPath.SetPoint(0, m_pPoints[0].m_PointX, m_pPoints[0].m_PointY, FXPT_MOVETO);
-            NewPath.SetPoint(1, m_pPoints[1].m_PointX, m_pPoints[1].m_PointY, FXPT_LINETO);
-        }
-        if (m_pPoints[0].m_PointX != m_pPoints[1].m_PointX && m_pPoints[0].m_PointY != m_pPoints[1].m_PointY) {
-            bThin = TRUE;
-        }
-        return TRUE;
-    }
-    if (((m_PointCount > 3) && (m_PointCount % 2))) {
-        int mid = m_PointCount / 2;
-        FX_BOOL bZeroArea = FALSE;
-        CFX_PathData t_path;
-        for (int i = 0; i < mid; i++) {
-            if (!(m_pPoints[mid - i - 1].m_PointX == m_pPoints[mid + i + 1].m_PointX
-                    && m_pPoints[mid - i - 1].m_PointY == m_pPoints[mid + i + 1].m_PointY &&
-                    ((m_pPoints[mid - i - 1].m_Flag & FXPT_TYPE) != FXPT_BEZIERTO && (m_pPoints[mid + i + 1].m_Flag & FXPT_TYPE) != FXPT_BEZIERTO))) {
-                bZeroArea = TRUE;
-                break;
-            }
-            int new_count = t_path.GetPointCount();
-            t_path.AddPointCount(2);
-            t_path.SetPoint(new_count, m_pPoints[mid - i].m_PointX, m_pPoints[mid - i].m_PointY, FXPT_MOVETO);
-            t_path.SetPoint(new_count + 1, m_pPoints[mid - i - 1].m_PointX, m_pPoints[mid - i - 1].m_PointY, FXPT_LINETO);
-        }
-        if (!bZeroArea) {
-            NewPath.Append(&t_path, NULL);
-            bThin = TRUE;
-            return TRUE;
-        }
-    }
-    int stratPoint = 0;
-    int next = 0, i;
-    for (i = 0; i < m_PointCount; i++) {
-        int point_type = m_pPoints[i].m_Flag & FXPT_TYPE;
-        if (point_type == FXPT_MOVETO) {
-            stratPoint = i;
-        } else if (point_type == FXPT_LINETO) {
-            next = (i + 1 - stratPoint) % (m_PointCount - stratPoint) + stratPoint;
-            if ((m_pPoints[next].m_Flag & FXPT_TYPE) != FXPT_BEZIERTO && (m_pPoints[next].m_Flag & FXPT_TYPE) != FXPT_MOVETO) {
-                if((m_pPoints[i - 1].m_PointX == m_pPoints[i].m_PointX && m_pPoints[i].m_PointX == m_pPoints[next].m_PointX)
-                        && ((m_pPoints[i].m_PointY - m_pPoints[i - 1].m_PointY) * (m_pPoints[i].m_PointY - m_pPoints[next].m_PointY) > 0)) {
-                    int pre = i;
-                    if (FXSYS_fabs(m_pPoints[i].m_PointY - m_pPoints[i - 1].m_PointY)
-                            < FXSYS_fabs(m_pPoints[i].m_PointY - m_pPoints[next].m_PointY)) {
-                        pre --;
-                        next--;
-                    }
-                    int new_count = NewPath.GetPointCount();
-                    NewPath.AddPointCount(2);
-                    NewPath.SetPoint(new_count, m_pPoints[pre].m_PointX, m_pPoints[pre].m_PointY, FXPT_MOVETO);
-                    NewPath.SetPoint(new_count + 1, m_pPoints[next].m_PointX, m_pPoints[next].m_PointY, FXPT_LINETO);
-                } else if((m_pPoints[i - 1].m_PointY == m_pPoints[i].m_PointY && m_pPoints[i].m_PointY == m_pPoints[next].m_PointY)
-                          && ((m_pPoints[i].m_PointX - m_pPoints[i - 1].m_PointX) * (m_pPoints[i].m_PointX - m_pPoints[next].m_PointX) > 0)) {
-                    int pre = i;
-                    if (FXSYS_fabs(m_pPoints[i].m_PointX - m_pPoints[i - 1].m_PointX)
-                            < FXSYS_fabs(m_pPoints[i].m_PointX - m_pPoints[next].m_PointX)) {
-                        pre --;
-                        next--;
-                    }
-                    int new_count = NewPath.GetPointCount();
-                    NewPath.AddPointCount(2);
-                    NewPath.SetPoint(new_count, m_pPoints[pre].m_PointX, m_pPoints[pre].m_PointY, FXPT_MOVETO);
-                    NewPath.SetPoint(new_count + 1, m_pPoints[next].m_PointX, m_pPoints[next].m_PointY, FXPT_LINETO);
-                } else if ((m_pPoints[i - 1].m_Flag & FXPT_TYPE) == FXPT_MOVETO && (m_pPoints[next].m_Flag & FXPT_TYPE) == FXPT_LINETO &&
-                           m_pPoints[i - 1].m_PointX == m_pPoints[next].m_PointX && m_pPoints[i - 1].m_PointY == m_pPoints[next].m_PointY
-                           && m_pPoints[next].m_Flag & FXPT_CLOSEFIGURE) {
-                    int new_count = NewPath.GetPointCount();
-                    NewPath.AddPointCount(2);
-                    NewPath.SetPoint(new_count, m_pPoints[i - 1].m_PointX, m_pPoints[i - 1].m_PointY, FXPT_MOVETO);
-                    NewPath.SetPoint(new_count + 1, m_pPoints[i].m_PointX, m_pPoints[i].m_PointY, FXPT_LINETO);
-                    bThin = TRUE;
-                }
-            }
-        } else if (point_type == FXPT_BEZIERTO) {
-            i += 2;
-            continue;
-        }
-    }
-    if (m_PointCount > 3 && NewPath.GetPointCount()) {
-        bThin = TRUE;
-    }
-    if (NewPath.GetPointCount() == 0) {
+      }
+      if (x[i] != x[i - 1] && y[i] != y[i - 1]) {
         return FALSE;
-    }
-    return TRUE;
-}
-FX_BOOL CFX_PathData::IsRect() const
-{
-    if (m_PointCount != 5 && m_PointCount != 4) {
-        return FALSE;
-    }
-    if ((m_PointCount == 5 && (m_pPoints[0].m_PointX != m_pPoints[4].m_PointX ||
-                               m_pPoints[0].m_PointY != m_pPoints[4].m_PointY)) ||
-            (m_pPoints[0].m_PointX == m_pPoints[2].m_PointX && m_pPoints[0].m_PointY == m_pPoints[2].m_PointY) ||
-            (m_pPoints[1].m_PointX == m_pPoints[3].m_PointX && m_pPoints[1].m_PointY == m_pPoints[3].m_PointY)) {
-        return FALSE;
-    }
-    if (m_pPoints[0].m_PointX != m_pPoints[3].m_PointX && m_pPoints[0].m_PointY != m_pPoints[3].m_PointY) {
-        return FALSE;
-    }
-    for (int i = 1; i < 4; i ++) {
-        if ((m_pPoints[i].m_Flag & FXPT_TYPE) != FXPT_LINETO) {
-            return FALSE;
-        }
-        if (m_pPoints[i].m_PointX != m_pPoints[i - 1].m_PointX && m_pPoints[i].m_PointY != m_pPoints[i - 1].m_PointY) {
-            return FALSE;
-        }
-    }
-    return m_PointCount == 5 || (m_pPoints[3].m_Flag & FXPT_CLOSEFIGURE);
-}
-FX_BOOL CFX_PathData::IsRect(const CFX_AffineMatrix* pMatrix, CFX_FloatRect* pRect) const
-{
-    if (pMatrix == NULL) {
-        if (!IsRect()) {
-            return FALSE;
-        }
-        if (pRect) {
-            pRect->left = m_pPoints[0].m_PointX;
-            pRect->right = m_pPoints[2].m_PointX;
-            pRect->bottom = m_pPoints[0].m_PointY;
-            pRect->top = m_pPoints[2].m_PointY;
-            pRect->Normalize();
-        }
-        return TRUE;
-    }
-    if (m_PointCount != 5 && m_PointCount != 4) {
-        return FALSE;
-    }
-    if ((m_PointCount == 5 && (m_pPoints[0].m_PointX != m_pPoints[4].m_PointX || m_pPoints[0].m_PointY != m_pPoints[4].m_PointY)) ||
-            (m_pPoints[1].m_PointX == m_pPoints[3].m_PointX && m_pPoints[1].m_PointY == m_pPoints[3].m_PointY)) {
-        return FALSE;
-    }
-    if (m_PointCount == 4 && m_pPoints[0].m_PointX != m_pPoints[3].m_PointX && m_pPoints[0].m_PointY != m_pPoints[3].m_PointY) {
-        return FALSE;
-    }
-    FX_FLOAT x[5], y[5];
-    for (int i = 0; i < m_PointCount; i ++) {
-        pMatrix->Transform(m_pPoints[i].m_PointX, m_pPoints[i].m_PointY, x[i], y[i]);
-        if (i) {
-            if ((m_pPoints[i].m_Flag & FXPT_TYPE) != FXPT_LINETO) {
-                return FALSE;
-            }
-            if (x[i] != x[i - 1] && y[i] != y[i - 1]) {
-                return FALSE;
-            }
-        }
-    }
-    if (pRect) {
-        pRect->left = x[0];
-        pRect->right = x[2];
-        pRect->bottom = y[0];
-        pRect->top = y[2];
-        pRect->Normalize();
-    }
-    return TRUE;
-}
-void CFX_PathData::Copy(const CFX_PathData &src)
-{
-    SetPointCount(src.m_PointCount);
-    FXSYS_memcpy(m_pPoints, src.m_pPoints, sizeof(FX_PATHPOINT) * m_PointCount);
-}
-CFX_GraphStateData::CFX_GraphStateData()
-{
-    m_LineCap = LineCapButt;
-    m_DashCount = 0;
-    m_DashArray = NULL;
-    m_DashPhase = 0;
-    m_LineJoin = LineJoinMiter;
-    m_MiterLimit = 10 * 1.0f;
-    m_LineWidth = 1.0f;
-}
-CFX_GraphStateData::CFX_GraphStateData(const CFX_GraphStateData& src)
-{
-    m_DashArray = NULL;
-    Copy(src);
-}
-void CFX_GraphStateData::Copy(const CFX_GraphStateData& src)
-{
-    m_LineCap = src.m_LineCap;
-    m_DashCount = src.m_DashCount;
-    if (m_DashArray) {
-        FX_Free(m_DashArray);
-    }
-    m_DashArray = NULL;
-    m_DashPhase = src.m_DashPhase;
-    m_LineJoin = src.m_LineJoin;
-    m_MiterLimit = src.m_MiterLimit;
-    m_LineWidth = src.m_LineWidth;
-    if (m_DashCount) {
-        m_DashArray = FX_Alloc(FX_FLOAT, m_DashCount);
-        FXSYS_memcpy(m_DashArray, src.m_DashArray, m_DashCount * sizeof(FX_FLOAT));
-    }
-}
-CFX_GraphStateData::~CFX_GraphStateData()
-{
-    if (m_DashArray) {
-        FX_Free(m_DashArray);
-    }
-}
-void CFX_GraphStateData::SetDashCount(int count)
-{
-    if (m_DashArray) {
-        FX_Free(m_DashArray);
-    }
-    m_DashArray = NULL;
-    m_DashCount = count;
-    if (count == 0) {
-        return;
-    }
-    m_DashArray = FX_Alloc(FX_FLOAT, count);
-}
+      }
+    }
+  }
+  if (pRect) {
+    pRect->left = x[0];
+    pRect->right = x[2];
+    pRect->bottom = y[0];
+    pRect->top = y[2];
+    pRect->Normalize();
+  }
+  return TRUE;
+}
+void CFX_PathData::Copy(const CFX_PathData& src) {
+  SetPointCount(src.m_PointCount);
+  FXSYS_memcpy(m_pPoints, src.m_pPoints, sizeof(FX_PATHPOINT) * m_PointCount);
+}
+CFX_GraphStateData::CFX_GraphStateData() {
+  m_LineCap = LineCapButt;
+  m_DashCount = 0;
+  m_DashArray = NULL;
+  m_DashPhase = 0;
+  m_LineJoin = LineJoinMiter;
+  m_MiterLimit = 10 * 1.0f;
+  m_LineWidth = 1.0f;
+}
+CFX_GraphStateData::CFX_GraphStateData(const CFX_GraphStateData& src) {
+  m_DashArray = NULL;
+  Copy(src);
+}
+void CFX_GraphStateData::Copy(const CFX_GraphStateData& src) {
+  m_LineCap = src.m_LineCap;
+  m_DashCount = src.m_DashCount;
+  if (m_DashArray) {
+    FX_Free(m_DashArray);
+  }
+  m_DashArray = NULL;
+  m_DashPhase = src.m_DashPhase;
+  m_LineJoin = src.m_LineJoin;
+  m_MiterLimit = src.m_MiterLimit;
+  m_LineWidth = src.m_LineWidth;
+  if (m_DashCount) {
+    m_DashArray = FX_Alloc(FX_FLOAT, m_DashCount);
+    FXSYS_memcpy(m_DashArray, src.m_DashArray, m_DashCount * sizeof(FX_FLOAT));
+  }
+}
+CFX_GraphStateData::~CFX_GraphStateData() {
+  if (m_DashArray) {
+    FX_Free(m_DashArray);
+  }
+}
+void CFX_GraphStateData::SetDashCount(int count) {
+  if (m_DashArray) {
+    FX_Free(m_DashArray);
+  }
+  m_DashArray = NULL;
+  m_DashCount = count;
+  if (count == 0) {
+    return;
+  }
+  m_DashArray = FX_Alloc(FX_FLOAT, count);
+}