// Copyright 2016 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "core/fpdfapi/render/cpdf_transferfunc.h"
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#include "core/fpdfapi/parser/cpdf_document.h"
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#include "core/fpdfapi/render/cpdf_dibtransferfunc.h"
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#include "core/fxge/dib/cfx_dibsource.h"
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CPDF_TransferFunc::CPDF_TransferFunc(CPDF_Document* pDoc) : m_pPDFDoc(pDoc) {}
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CPDF_TransferFunc::~CPDF_TransferFunc() {}
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FX_COLORREF CPDF_TransferFunc::TranslateColor(FX_COLORREF rgb) const {
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return FXSYS_RGB(m_Samples[FXSYS_GetRValue(rgb)],
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m_Samples[256 + FXSYS_GetGValue(rgb)],
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m_Samples[512 + FXSYS_GetBValue(rgb)]);
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}
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RetainPtr<CFX_DIBSource> CPDF_TransferFunc::TranslateImage(
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const RetainPtr<CFX_DIBSource>& pSrc) {
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RetainPtr<CPDF_TransferFunc> pHolder(this);
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auto pDest = pdfium::MakeRetain<CPDF_DIBTransferFunc>(pHolder);
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pDest->LoadSrc(pSrc);
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return pDest;
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}
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