1 files changed, 37 insertions, 0 deletions
diff --git a/core/fpdfapi/render/cpdf_dibtransferfunc.h b/core/fpdfapi/render/cpdf_dibtransferfunc.h
new file mode 100644
index 0000000000..d290c00d8a
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+++ b/core/fpdfapi/render/cpdf_dibtransferfunc.h
@@ -0,0 +1,37 @@
+// Copyright 2016 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
+
+#ifndef CORE_FPDFAPI_RENDER_CPDF_DIBTRANSFERFUNC_H_
+#define CORE_FPDFAPI_RENDER_CPDF_DIBTRANSFERFUNC_H_
+
+#include <vector>
+
+#include "core/fxge/fx_dib.h"
+
+class CPDF_TransferFunc;
+
+class CPDF_DIBTransferFunc : public CFX_FilteredDIB {
+ public:
+  explicit CPDF_DIBTransferFunc(const CPDF_TransferFunc* pTransferFunc);
+  ~CPDF_DIBTransferFunc() override;
+
+  // CFX_FilteredDIB
+  FXDIB_Format GetDestFormat() override;
+  FX_ARGB* GetDestPalette() override;
+  void TranslateScanline(const uint8_t* src_buf,
+                         std::vector<uint8_t>* dest_buf) const override;
+  void TranslateDownSamples(uint8_t* dest_buf,
+                            const uint8_t* src_buf,
+                            int pixels,
+                            int Bpp) const override;
+
+ private:
+  const uint8_t* m_RampR;
+  const uint8_t* m_RampG;
+  const uint8_t* m_RampB;
+};
+
+#endif  // CORE_FPDFAPI_RENDER_CPDF_DIBTRANSFERFUNC_H_