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_DIBTRANSFERFUNC_H_
8#define CORE_FPDFAPI_RENDER_CPDF_DIBTRANSFERFUNC_H_
9
10#include <vector>
11
12#include "core/fxcrt/unowned_ptr.h"
13#include "core/fxge/dib/cfx_filtereddib.h"
14#include "core/fxge/fx_dib.h"
15
16class CPDF_TransferFunc;
17
18class CPDF_DIBTransferFunc : public CFX_FilteredDIB {
19 public:
20  template <typename T, typename... Args>
21  friend RetainPtr<T> pdfium::MakeRetain(Args&&... args);
22
23  ~CPDF_DIBTransferFunc() override;
24
25  // CFX_FilteredDIB
26  FXDIB_Format GetDestFormat() override;
27  FX_ARGB* GetDestPalette() override;
28  void TranslateScanline(const uint8_t* src_buf,
29                         std::vector<uint8_t>* dest_buf) const override;
30  void TranslateDownSamples(uint8_t* dest_buf,
31                            const uint8_t* src_buf,
32                            int pixels,
33                            int Bpp) const override;
34
35 private:
36  explicit CPDF_DIBTransferFunc(
37      const RetainPtr<CPDF_TransferFunc>& pTransferFunc);
38
39  RetainPtr<CPDF_TransferFunc> m_pTransferFunc;
40  const uint8_t* m_RampR;
41  const uint8_t* m_RampG;
42  const uint8_t* m_RampB;
43};
44
45#endif  // CORE_FPDFAPI_RENDER_CPDF_DIBTRANSFERFUNC_H_
46