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src/Source/OpenEXR/IlmImf/ImfAcesFile.h  view on Meta::CPAN

    //-------------------------------------------------
    // Write pixel data (see class Imf::OutputFile)
    // The pixels are assumed to contain ACES RGB data.
    //-------------------------------------------------

    void			writePixels (int numScanLines = 1);
    int				currentScanLine () const;


    //--------------------------
    // Access to the file header
    //--------------------------

    const Header &		header () const;
    const IMATH_NAMESPACE::Box2i &	displayWindow () const;
    const IMATH_NAMESPACE::Box2i &	dataWindow () const;
    float			pixelAspectRatio () const;
    const IMATH_NAMESPACE::V2f		screenWindowCenter () const;
    float			screenWindowWidth () const;
    LineOrder			lineOrder () const;
    Compression			compression () const;
    RgbaChannels		channels () const;


    // --------------------------------------------------------------------
    // Update the preview image (see Imf::OutputFile::updatePreviewImage())
    // --------------------------------------------------------------------

    void			updatePreviewImage (const PreviewRgba[]);


  private:

    AcesOutputFile (const AcesOutputFile &);		  // not implemented
    AcesOutputFile & operator = (const AcesOutputFile &); // not implemented

    class Data;

    Data *			_data;
};


//
// ACES input file
//

class IMF_EXPORT AcesInputFile
{
  public:

    //-------------------------------------------------------
    // Constructor -- opens the file with the specified name,
    // destructor will automatically close the file.
    //-------------------------------------------------------

    AcesInputFile (const std::string &name,
		   int numThreads = globalThreadCount());


    //-----------------------------------------------------------
    // Constructor -- attaches the new AcesInputFile object to a
    // file that has already been opened by the caller.
    // Destroying the AcesInputFile object will not automatically
    // close the file.
    //-----------------------------------------------------------

    AcesInputFile (OPENEXR_IMF_INTERNAL_NAMESPACE::IStream &is,
		   int numThreads = globalThreadCount());


    //-----------
    // Destructor
    //-----------

    virtual ~AcesInputFile ();


    //-----------------------------------------------------
    // Define a frame buffer as the pixel data destination:
    // Pixel (x, y) is at address
    //
    //  base + x * xStride + y * yStride
    //
    //-----------------------------------------------------

    void			setFrameBuffer (Rgba *base,
						size_t xStride,
						size_t yStride);


    //--------------------------------------------
    // Read pixel data (see class Imf::InputFile)
    // Pixels returned will contain ACES RGB data.
    //--------------------------------------------

    void			readPixels (int scanLine1, int scanLine2);
    void			readPixels (int scanLine);


    //--------------------------
    // Access to the file header
    //--------------------------

    const Header &		header () const;
    const IMATH_NAMESPACE::Box2i &	displayWindow () const;
    const IMATH_NAMESPACE::Box2i &	dataWindow () const;
    float			pixelAspectRatio () const;
    const IMATH_NAMESPACE::V2f		screenWindowCenter () const;
    float			screenWindowWidth () const;
    LineOrder			lineOrder () const;
    Compression			compression () const;
    RgbaChannels		channels () const;
    const char *                fileName () const;
    bool			isComplete () const;


    //----------------------------------
    // Access to the file format version
    //----------------------------------

    int				version () const;