blob: f4d00dc9c3e445a3a7e545f43ce96a174556feb1 [file] [log] [blame]
// Copyright 2017 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 "core/fpdfapi/page/cpdf_psfunc.h"
#include "core/fpdfapi/parser/cpdf_stream.h"
#include "core/fpdfapi/parser/cpdf_stream_acc.h"
CPDF_PSFunc::CPDF_PSFunc() : CPDF_Function(Type::kType4PostScript) {}
CPDF_PSFunc::~CPDF_PSFunc() = default;
bool CPDF_PSFunc::v_Init(const CPDF_Object* pObj,
std::set<const CPDF_Object*>* pVisited) {
auto pAcc = pdfium::MakeRetain<CPDF_StreamAcc>(pObj->AsStream());
pAcc->LoadAllDataFiltered();
return m_PS.Parse(pAcc->GetSpan());
}
bool CPDF_PSFunc::v_Call(const float* inputs, float* results) const {
m_PS.Reset();
for (uint32_t i = 0; i < m_nInputs; i++)
m_PS.Push(inputs[i]);
m_PS.Execute();
if (m_PS.GetStackSize() < m_nOutputs)
return false;
for (uint32_t i = 0; i < m_nOutputs; i++)
results[m_nOutputs - i - 1] = m_PS.Pop();
return true;
}