Move core/fpdfapi/fpdf_page to core/fpdfapi/page

core/fpdfapi/fpdf_page/cpdf_psengine.h

-// Copyright 2016 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
-
-#ifndef CORE_FPDFAPI_FPDF_PAGE_CPDF_PSENGINE_H_
-#define CORE_FPDFAPI_FPDF_PAGE_CPDF_PSENGINE_H_
-
-#include <memory>
-#include <vector>
-
-#include "core/fxcrt/fx_system.h"
-
-class CPDF_PSEngine;
-class CPDF_PSOP;
-class CPDF_SimpleParser;
-
-enum PDF_PSOP {
-  PSOP_ADD,
-  PSOP_SUB,
-  PSOP_MUL,
-  PSOP_DIV,
-  PSOP_IDIV,
-  PSOP_MOD,
-  PSOP_NEG,
-  PSOP_ABS,
-  PSOP_CEILING,
-  PSOP_FLOOR,
-  PSOP_ROUND,
-  PSOP_TRUNCATE,
-  PSOP_SQRT,
-  PSOP_SIN,
-  PSOP_COS,
-  PSOP_ATAN,
-  PSOP_EXP,
-  PSOP_LN,
-  PSOP_LOG,
-  PSOP_CVI,
-  PSOP_CVR,
-  PSOP_EQ,
-  PSOP_NE,
-  PSOP_GT,
-  PSOP_GE,
-  PSOP_LT,
-  PSOP_LE,
-  PSOP_AND,
-  PSOP_OR,
-  PSOP_XOR,
-  PSOP_NOT,
-  PSOP_BITSHIFT,
-  PSOP_TRUE,
-  PSOP_FALSE,
-  PSOP_IF,
-  PSOP_IFELSE,
-  PSOP_POP,
-  PSOP_EXCH,
-  PSOP_DUP,
-  PSOP_COPY,
-  PSOP_INDEX,
-  PSOP_ROLL,
-  PSOP_PROC,
-  PSOP_CONST
-};
-
-constexpr uint32_t PSENGINE_STACKSIZE = 100;
-
-class CPDF_PSProc {
- public:
-  CPDF_PSProc();
-  ~CPDF_PSProc();
-
-  FX_BOOL Parse(CPDF_SimpleParser* parser, int depth);
-  FX_BOOL Execute(CPDF_PSEngine* pEngine);
-
- private:
-  static const int kMaxDepth = 128;
-  std::vector<std::unique_ptr<CPDF_PSOP>> m_Operators;
-};
-
-class CPDF_PSEngine {
- public:
-  CPDF_PSEngine();
-  ~CPDF_PSEngine();
-
-  FX_BOOL Parse(const FX_CHAR* str, int size);
-  FX_BOOL Execute();
-  FX_BOOL DoOperator(PDF_PSOP op);
-  void Reset() { m_StackCount = 0; }
-  void Push(FX_FLOAT value);
-  void Push(int value) { Push((FX_FLOAT)value); }
-  FX_FLOAT Pop();
-  uint32_t GetStackSize() const { return m_StackCount; }
-
- private:
-  FX_FLOAT m_Stack[PSENGINE_STACKSIZE];
-  uint32_t m_StackCount;
-  CPDF_PSProc m_MainProc;
-};
-
-#endif  // CORE_FPDFAPI_FPDF_PAGE_CPDF_PSENGINE_H_