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// Copyright 2016 The PDFium Authors
// 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 <stdint.h>
#include "core/fpdfapi/page/cpdf_colorspace.h"
#include "core/fxcrt/retain_ptr.h"
#include "core/fxcrt/unowned_ptr.h"
#include "third_party/base/containers/span.h"
class CFX_DIBBase;
class CFX_DIBitmap;
class CPDF_DIB;
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();
RetainPtr<const CPDF_Dictionary> GetDict() const;
RetainPtr<const CPDF_Stream> GetStream() const;
RetainPtr<const CPDF_Dictionary> GetOC() const;
// Never returns nullptr.
CPDF_Document* GetDocument() const { return m_pDocument; }
int32_t GetPixelHeight() const { return m_Height; }
int32_t GetPixelWidth() const { return m_Width; }
uint32_t GetMatteColor() const { return m_MatteColor; }
bool IsInline() const { return m_bIsInline; }
bool IsMask() const { return m_bIsMask; }
bool IsInterpol() const { return m_bInterpolate; }
RetainPtr<CPDF_DIB> CreateNewDIB() const;
RetainPtr<CFX_DIBBase> LoadDIBBase() const;
void SetImage(const RetainPtr<CFX_DIBitmap>& pBitmap);
void SetJpegImage(RetainPtr<IFX_SeekableReadStream> pFile);
void SetJpegImageInline(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,
CPDF_ColorSpace::Family GroupFamily,
bool bLoadMask,
const CFX_Size& max_size_required);
// Returns whether to Continue() or not.
bool Continue(PauseIndicatorIface* pPause);
RetainPtr<CFX_DIBBase> DetachBitmap();
RetainPtr<CFX_DIBBase> DetachMask();
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();
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;
uint32_t m_MatteColor = 0;
bool m_bIsInline = false;
bool m_bIsMask = false;
bool m_bInterpolate = false;
UnownedPtr<CPDF_Document> const m_pDocument;
RetainPtr<CFX_DIBBase> m_pDIBBase;
RetainPtr<CFX_DIBBase> m_pMask;
RetainPtr<CPDF_Stream> m_pStream;
RetainPtr<const CPDF_Dictionary> m_pOC;
};
#endif // CORE_FPDFAPI_PAGE_CPDF_IMAGE_H_
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