| // 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_DIBITMAP_H_ |
| #define CORE_FXGE_DIB_CFX_DIBITMAP_H_ |
| |
| #include "core/fxcrt/fx_coordinates.h" |
| #include "core/fxcrt/maybe_owned.h" |
| #include "core/fxcrt/retain_ptr.h" |
| #include "core/fxge/dib/cfx_dibsource.h" |
| #include "third_party/base/stl_util.h" |
| |
| class CFX_DIBitmap : public CFX_DIBSource { |
| public: |
| template <typename T, typename... Args> |
| friend RetainPtr<T> pdfium::MakeRetain(Args&&... args); |
| |
| bool Create(int width, |
| int height, |
| FXDIB_Format format, |
| uint8_t* pBuffer = nullptr, |
| uint32_t pitch = 0); |
| |
| bool Copy(const RetainPtr<CFX_DIBSource>& pSrc); |
| |
| // CFX_DIBSource |
| uint8_t* GetBuffer() const override; |
| 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; |
| |
| void TakeOver(RetainPtr<CFX_DIBitmap>&& pSrcBitmap); |
| bool ConvertFormat(FXDIB_Format format); |
| void Clear(uint32_t color); |
| |
| uint32_t GetPixel(int x, int y) const; |
| void SetPixel(int x, int y, uint32_t color); |
| |
| bool LoadChannel(FXDIB_Channel destChannel, |
| const RetainPtr<CFX_DIBSource>& pSrcBitmap, |
| FXDIB_Channel srcChannel); |
| bool LoadChannel(FXDIB_Channel destChannel, int value); |
| |
| bool MultiplyAlpha(int alpha); |
| bool MultiplyAlpha(const RetainPtr<CFX_DIBSource>& pAlphaMask); |
| |
| bool TransferBitmap(int dest_left, |
| int dest_top, |
| int width, |
| int height, |
| const RetainPtr<CFX_DIBSource>& pSrcBitmap, |
| int src_left, |
| int src_top); |
| |
| bool CompositeBitmap(int dest_left, |
| int dest_top, |
| int width, |
| int height, |
| const RetainPtr<CFX_DIBSource>& pSrcBitmap, |
| int src_left, |
| int src_top, |
| int blend_type = FXDIB_BLEND_NORMAL, |
| const CFX_ClipRgn* pClipRgn = nullptr, |
| bool bRgbByteOrder = false); |
| |
| bool CompositeMask(int dest_left, |
| int dest_top, |
| int width, |
| int height, |
| const RetainPtr<CFX_DIBSource>& pMask, |
| uint32_t color, |
| int src_left, |
| int src_top, |
| int blend_type = FXDIB_BLEND_NORMAL, |
| const CFX_ClipRgn* pClipRgn = nullptr, |
| bool bRgbByteOrder = false, |
| int alpha_flag = 0); |
| |
| bool CompositeRect(int dest_left, |
| int dest_top, |
| int width, |
| int height, |
| uint32_t color, |
| int alpha_flag); |
| |
| bool ConvertColorScale(uint32_t forecolor, uint32_t backcolor); |
| |
| static bool CalculatePitchAndSize(int height, |
| int width, |
| FXDIB_Format format, |
| uint32_t* pitch, |
| uint32_t* size); |
| |
| #if defined _SKIA_SUPPORT_ || _SKIA_SUPPORT_PATHS_ |
| void PreMultiply(); |
| #endif |
| #if defined _SKIA_SUPPORT_PATHS_ |
| void UnPreMultiply(); |
| #endif |
| |
| protected: |
| CFX_DIBitmap(); |
| CFX_DIBitmap(const CFX_DIBitmap& src); |
| ~CFX_DIBitmap() override; |
| |
| #if defined _SKIA_SUPPORT_PATHS_ |
| enum class Format { kCleared, kPreMultiplied, kUnPreMultiplied }; |
| #endif |
| |
| MaybeOwned<uint8_t, FxFreeDeleter> m_pBuffer; |
| #if defined _SKIA_SUPPORT_PATHS_ |
| Format m_nFormat; |
| #endif |
| |
| private: |
| void ConvertBGRColorScale(uint32_t forecolor, uint32_t backcolor); |
| void ConvertCMYKColorScale(uint32_t forecolor, uint32_t backcolor); |
| bool TransferWithUnequalFormats(FXDIB_Format dest_format, |
| int dest_left, |
| int dest_top, |
| int width, |
| int height, |
| const RetainPtr<CFX_DIBSource>& pSrcBitmap, |
| int src_left, |
| int src_top); |
| void TransferWithMultipleBPP(int dest_left, |
| int dest_top, |
| int width, |
| int height, |
| const RetainPtr<CFX_DIBSource>& pSrcBitmap, |
| int src_left, |
| int src_top); |
| void TransferEqualFormatsOneBPP(int dest_left, |
| int dest_top, |
| int width, |
| int height, |
| const RetainPtr<CFX_DIBSource>& pSrcBitmap, |
| int src_left, |
| int src_top); |
| }; |
| |
| #endif // CORE_FXGE_DIB_CFX_DIBITMAP_H_ |