| // 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_PAGE_CPDF_IMAGE_H_ |
| #define CORE_FPDFAPI_PAGE_CPDF_IMAGE_H_ |
| |
| #include "core/fxcrt/fx_system.h" |
| #include "core/fxcrt/retain_ptr.h" |
| #include "core/fxcrt/unowned_ptr.h" |
| #include "third_party/base/span.h" |
| |
| class CFX_DIBBase; |
| class CFX_DIBitmap; |
| class CPDF_Dictionary; |
| class CPDF_Document; |
| class CPDF_Page; |
| class CPDF_Stream; |
| class PauseIndicatorIface; |
| class IFX_SeekableReadStream; |
| |
| class CPDF_Image final : public Retainable { |
| public: |
| CONSTRUCT_VIA_MAKE_RETAIN; |
| |
| static bool IsValidJpegComponent(int32_t comps); |
| static bool IsValidJpegBitsPerComponent(int32_t bpc); |
| |
| void ConvertStreamToIndirectObject(); |
| |
| CPDF_Dictionary* GetDict() const; |
| CPDF_Stream* GetStream() const { return m_pStream.Get(); } |
| const CPDF_Dictionary* GetOC() const { return m_pOC.Get(); } |
| CPDF_Document* GetDocument() const { return m_pDocument.Get(); } |
| |
| int32_t GetPixelHeight() const { return m_Height; } |
| int32_t GetPixelWidth() const { return m_Width; } |
| |
| bool IsInline() const { return m_bIsInline; } |
| bool IsMask() const { return m_bIsMask; } |
| bool IsInterpol() const { return m_bInterpolate; } |
| |
| RetainPtr<CFX_DIBBase> LoadDIBBase() const; |
| |
| void SetImage(const RetainPtr<CFX_DIBitmap>& pBitmap); |
| void SetJpegImage(const RetainPtr<IFX_SeekableReadStream>& pFile); |
| void SetJpegImageInline(const RetainPtr<IFX_SeekableReadStream>& pFile); |
| |
| void ResetCache(CPDF_Page* pPage); |
| |
| // Returns whether to Continue() or not. |
| bool StartLoadDIBBase(const CPDF_Dictionary* pFormResource, |
| const CPDF_Dictionary* pPageResource, |
| bool bStdCS, |
| uint32_t GroupFamily, |
| bool bLoadMask); |
| |
| // Returns whether to Continue() or not. |
| bool Continue(PauseIndicatorIface* pPause); |
| |
| RetainPtr<CFX_DIBBase> DetachBitmap(); |
| RetainPtr<CFX_DIBBase> DetachMask(); |
| |
| RetainPtr<CFX_DIBBase> m_pDIBBase; |
| RetainPtr<CFX_DIBBase> m_pMask; |
| uint32_t m_MatteColor = 0; |
| |
| private: |
| explicit CPDF_Image(CPDF_Document* pDoc); |
| CPDF_Image(CPDF_Document* pDoc, RetainPtr<CPDF_Stream> pStream); |
| CPDF_Image(CPDF_Document* pDoc, uint32_t dwStreamObjNum); |
| ~CPDF_Image() override; |
| |
| void FinishInitialization(CPDF_Dictionary* pStreamDict); |
| RetainPtr<CPDF_Dictionary> InitJPEG(pdfium::span<uint8_t> src_span); |
| |
| RetainPtr<CPDF_Dictionary> CreateXObjectImageDict(int width, int height); |
| |
| int32_t m_Height = 0; |
| int32_t m_Width = 0; |
| bool m_bIsInline = false; |
| bool m_bIsMask = false; |
| bool m_bInterpolate = false; |
| UnownedPtr<CPDF_Document> const m_pDocument; |
| RetainPtr<CPDF_Stream> m_pStream; |
| RetainPtr<const CPDF_Dictionary> m_pOC; |
| }; |
| |
| #endif // CORE_FPDFAPI_PAGE_CPDF_IMAGE_H_ |