1 // Copyright 2016 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/render/cpdf_transferfunc.h"
8 
9 #include "core/fpdfapi/parser/cpdf_document.h"
10 #include "core/fpdfapi/render/cpdf_dibtransferfunc.h"
11 
CPDF_TransferFunc(CPDF_Document * pDoc)12 CPDF_TransferFunc::CPDF_TransferFunc(CPDF_Document* pDoc) : m_pPDFDoc(pDoc) {}
13 
TranslateColor(FX_COLORREF rgb) const14 FX_COLORREF CPDF_TransferFunc::TranslateColor(FX_COLORREF rgb) const {
15   return FXSYS_RGB(m_Samples[FXSYS_GetRValue(rgb)],
16                    m_Samples[256 + FXSYS_GetGValue(rgb)],
17                    m_Samples[512 + FXSYS_GetBValue(rgb)]);
18 }
19 
TranslateImage(const CFX_DIBSource * pSrc,bool bAutoDropSrc)20 CFX_DIBSource* CPDF_TransferFunc::TranslateImage(const CFX_DIBSource* pSrc,
21                                                  bool bAutoDropSrc) {
22   CPDF_DIBTransferFunc* pDest = new CPDF_DIBTransferFunc(this);
23   pDest->LoadSrc(pSrc, bAutoDropSrc);
24   return pDest;
25 }
26