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Diffstat (limited to 'core/fxge/dib/cfx_filtereddib.h')
-rw-r--r-- | core/fxge/dib/cfx_filtereddib.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/core/fxge/dib/cfx_filtereddib.h b/core/fxge/dib/cfx_filtereddib.h new file mode 100644 index 0000000000..3a16bb0750 --- /dev/null +++ b/core/fxge/dib/cfx_filtereddib.h @@ -0,0 +1,50 @@ +// Copyright 2017 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_FXGE_DIB_CFX_FILTEREDDIB_H_ +#define CORE_FXGE_DIB_CFX_FILTEREDDIB_H_ + +#include <vector> + +#include "core/fxcrt/cfx_retain_ptr.h" +#include "core/fxge/dib/cfx_dibsource.h" + +class CFX_FilteredDIB : public CFX_DIBSource { + public: + template <typename T, typename... Args> + friend CFX_RetainPtr<T> pdfium::MakeRetain(Args&&... args); + + ~CFX_FilteredDIB() override; + + virtual FXDIB_Format GetDestFormat() = 0; + virtual uint32_t* GetDestPalette() = 0; + virtual void TranslateScanline(const uint8_t* src_buf, + std::vector<uint8_t>* dest_buf) const = 0; + virtual void TranslateDownSamples(uint8_t* dest_buf, + const uint8_t* src_buf, + int pixels, + int Bpp) const = 0; + + void LoadSrc(const CFX_RetainPtr<CFX_DIBSource>& pSrc); + + protected: + CFX_FilteredDIB(); + + // CFX_DIBSource + const uint8_t* GetScanline(int line) const override; + void DownSampleScanline(int line, + uint8_t* dest_scan, + int dest_bpp, + int dest_width, + bool bFlipX, + int clip_left, + int clip_width) const override; + + CFX_RetainPtr<CFX_DIBSource> m_pSrc; + mutable std::vector<uint8_t> m_Scanline; +}; + +#endif // CORE_FXGE_DIB_CFX_FILTEREDDIB_H_ |