1 // Copyright 2017 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #include "core/fpdfapi/page/cpdf_psfunc.h" 8 9 #include "core/fpdfapi/parser/cpdf_stream.h" 10 #include "core/fpdfapi/parser/cpdf_stream_acc.h" 11 CPDF_PSFunc()12CPDF_PSFunc::CPDF_PSFunc() : CPDF_Function(Type::kType4PostScript) {} 13 ~CPDF_PSFunc()14CPDF_PSFunc::~CPDF_PSFunc() {} 15 v_Init(const CPDF_Object * pObj,std::set<const CPDF_Object * > * pVisited)16bool CPDF_PSFunc::v_Init(const CPDF_Object* pObj, 17 std::set<const CPDF_Object*>* pVisited) { 18 auto pAcc = pdfium::MakeRetain<CPDF_StreamAcc>(pObj->AsStream()); 19 pAcc->LoadAllDataFiltered(); 20 return m_PS.Parse(pAcc->GetSpan()); 21 } 22 v_Call(const float * inputs,float * results) const23bool CPDF_PSFunc::v_Call(const float* inputs, float* results) const { 24 m_PS.Reset(); 25 for (uint32_t i = 0; i < m_nInputs; i++) 26 m_PS.Push(inputs[i]); 27 m_PS.Execute(); 28 if (m_PS.GetStackSize() < m_nOutputs) 29 return false; 30 for (uint32_t i = 0; i < m_nOutputs; i++) 31 results[m_nOutputs - i - 1] = m_PS.Pop(); 32 return true; 33 } 34