BitmapHelper.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#pragma once
 
#include <headless/CairoCommon.hxx>
#include <headless/svpbmp.hxx>
#include <basegfx/utils/systemdependentdata.hxx>
 
class VCL_DLLPUBLIC BitmapHelper : public SurfaceHelper
{
private:
#ifdef HAVE_CAIRO_FORMAT_RGB24_888
    const bool m_bForceARGB32;
#endif
    SvpSalBitmap aTmpBmp;
 
public:
    explicit BitmapHelper(const SalBitmap& rSourceBitmap, const bool bForceARGB32 = false);
    void mark_dirty();
    unsigned char* getBits(sal_Int32& rStride);
};
 
class VCL_DLLPUBLIC MaskHelper : public SurfaceHelper
{
public:
    explicit MaskHelper(const SalBitmap& rAlphaBitmap);
};
 
class SystemDependentData_BitmapHelper : public basegfx::SystemDependentData
{
private:
    std::shared_ptr<BitmapHelper> maBitmapHelper;
 
public:
    SystemDependentData_BitmapHelper(std::shared_ptr<BitmapHelper> xBitmapHelper);
 
    const std::shared_ptr<BitmapHelper>& getBitmapHelper() const { return maBitmapHelper; };
    virtual sal_Int64 estimateUsageInBytes() const override;
};
 
class SystemDependentData_MaskHelper : public basegfx::SystemDependentData
{
private:
    std::shared_ptr<MaskHelper> maMaskHelper;
 
public:
    SystemDependentData_MaskHelper(std::shared_ptr<MaskHelper> xMaskHelper);
 
    const std::shared_ptr<MaskHelper>& getMaskHelper() const { return maMaskHelper; };
    virtual sal_Int64 estimateUsageInBytes() const override;
};
 
VCL_DLLPUBLIC void tryToUseSourceBuffer(const SalBitmap& rSourceBitmap,
                                        std::shared_ptr<BitmapHelper>& rSurface);
VCL_DLLPUBLIC void tryToUseMaskBuffer(const SalBitmap& rMaskBitmap,
                                      std::shared_ptr<MaskHelper>& rMask);
 
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