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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 #ifndef CORE_FPDFAPI_RENDER_CPDF_TRANSFERFUNC_H_
8 #define CORE_FPDFAPI_RENDER_CPDF_TRANSFERFUNC_H_
9 
10 #include "core/fxcrt/retain_ptr.h"
11 #include "core/fxcrt/unowned_ptr.h"
12 #include "core/fxge/fx_dib.h"
13 
14 class CPDF_Document;
15 class CFX_DIBSource;
16 
17 class CPDF_TransferFunc : public Retainable {
18  public:
19   template <typename T, typename... Args>
20   friend RetainPtr<T> pdfium::MakeRetain(Args&&... args);
21 
22   FX_COLORREF TranslateColor(FX_COLORREF src) const;
23   RetainPtr<CFX_DIBSource> TranslateImage(const RetainPtr<CFX_DIBSource>& pSrc);
24 
GetDocument()25   const CPDF_Document* GetDocument() const { return m_pPDFDoc.Get(); }
26 
GetSamples()27   const uint8_t* GetSamples() const { return m_Samples; }
GetSamples()28   uint8_t* GetSamples() { return m_Samples; }
29 
GetIdentity()30   bool GetIdentity() const { return m_bIdentity; }
SetIdentity(bool identity)31   void SetIdentity(bool identity) { m_bIdentity = identity; }
32 
33  private:
34   explicit CPDF_TransferFunc(CPDF_Document* pDoc);
35   ~CPDF_TransferFunc() override;
36 
37   UnownedPtr<CPDF_Document> const m_pPDFDoc;
38   bool m_bIdentity;
39   uint8_t m_Samples[256 * 3];
40 };
41 
42 #endif  // CORE_FPDFAPI_RENDER_CPDF_TRANSFERFUNC_H_
43