"atomic bomb" commit. Reorganized OpenCV directory structure

3rdparty/include/OpenEXR/ImfInputFile.h

@@ -0,0 +1,209 @@
+///////////////////////////////////////////////////////////////////////////
+//
+// Copyright (c) 2004, Industrial Light & Magic, a division of Lucas
+// Digital Ltd. LLC
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+// *       Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// *       Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+// *       Neither the name of Industrial Light & Magic nor the names of
+// its contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission. 
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+///////////////////////////////////////////////////////////////////////////
+
+
+#ifndef INCLUDED_IMF_INPUT_FILE_H
+#define INCLUDED_IMF_INPUT_FILE_H
+
+//-----------------------------------------------------------------------------
+//
+//	class InputFile -- a scanline-based interface that can be used
+//	to read both scanline-based and tiled OpenEXR image files.
+//
+//-----------------------------------------------------------------------------
+
+#include <ImfHeader.h>
+#include <ImfFrameBuffer.h>
+#include <ImfTiledOutputFile.h>
+#include <string>
+#include <fstream>
+#include <ImfThreading.h>
+
+namespace Imf {
+
+class TiledInputFile;
+class ScanLineInputFile;
+
+
+class InputFile
+{
+  public:
+
+    //-----------------------------------------------------------
+    // A constructor that opens the file with the specified name.
+    // Destroying the InputFile object will close the file.
+    //
+    // numThreads determines the number of threads that will be
+    // used to read the file (see ImfThreading.h).
+    //-----------------------------------------------------------
+
+    InputFile (const char fileName[], int numThreads = globalThreadCount());
+
+
+    //-------------------------------------------------------------
+    // A constructor that attaches the new InputFile object to a
+    // file that has already been opened.  Destroying the InputFile
+    // object will not close the file.
+    //
+    // numThreads determines the number of threads that will be
+    // used to read the file (see ImfThreading.h).
+    //-------------------------------------------------------------
+
+    InputFile (IStream &is, int numThreads = globalThreadCount());
+
+
+    //-----------
+    // Destructor
+    //-----------
+
+    virtual ~InputFile ();
+
+
+    //------------------------
+    // Access to the file name
+    //------------------------
+
+    const char *	fileName () const;
+
+
+    //--------------------------
+    // Access to the file header
+    //--------------------------
+
+    const Header &	header () const;
+
+
+    //----------------------------------
+    // Access to the file format version
+    //----------------------------------
+
+    int			version () const;
+
+
+    //-----------------------------------------------------------
+    // Set the current frame buffer -- copies the FrameBuffer
+    // object into the InputFile object.
+    //
+    // The current frame buffer is the destination for the pixel
+    // data read from the file.  The current frame buffer must be
+    // set at least once before readPixels() is called.
+    // The current frame buffer can be changed after each call
+    // to readPixels().
+    //-----------------------------------------------------------
+
+    void		setFrameBuffer (const FrameBuffer &frameBuffer);
+
+
+    //-----------------------------------
+    // Access to the current frame buffer
+    //-----------------------------------
+
+    const FrameBuffer &	frameBuffer () const;
+
+
+    //---------------------------------------------------------------
+    // Check if the file is complete:
+    //
+    // isComplete() returns true if all pixels in the data window are
+    // present in the input file, or false if any pixels are missing.
+    // (Another program may still be busy writing the file, or file
+    // writing may have been aborted prematurely.)
+    //---------------------------------------------------------------
+
+    bool		isComplete () const;
+
+
+    //---------------------------------------------------------------
+    // Read pixel data:
+    //
+    // readPixels(s1,s2) reads all scan lines with y coordinates
+    // in the interval [min (s1, s2), max (s1, s2)] from the file,
+    // and stores them in the current frame buffer.
+    //
+    // Both s1 and s2 must be within the interval
+    // [header().dataWindow().min.y, header().dataWindow().max.y]
+    //
+    // The scan lines can be read from the file in random order, and
+    // individual scan lines may be skipped or read multiple times.
+    // For maximum efficiency, the scan lines should be read in the
+    // order in which they were written to the file.
+    //
+    // readPixels(s) calls readPixels(s,s).
+    //
+    //---------------------------------------------------------------
+
+    void		readPixels (int scanLine1, int scanLine2);
+    void		readPixels (int scanLine);
+
+
+    //----------------------------------------------
+    // Read a block of raw pixel data from the file,
+    // without uncompressing it (this function is
+    // used to implement OutputFile::copyPixels()).
+    //----------------------------------------------
+
+    void		rawPixelData (int firstScanLine,
+				      const char *&pixelData,
+				      int &pixelDataSize);
+                                     
+    //--------------------------------------------------
+    // Read a tile of raw pixel data from the file,
+    // without uncompressing it (this function is
+    // used to implement TiledOutputFile::copyPixels()).
+    //--------------------------------------------------
+
+    void		rawTileData (int &dx, int &dy,
+				     int &lx, int &ly,
+				     const char *&pixelData,
+				     int &pixelDataSize);
+
+    struct Data;
+    
+  private:
+
+    InputFile (const InputFile &);			// not implemented
+    InputFile & operator = (const InputFile &);		// not implemented
+
+    void		initialize ();
+    TiledInputFile *	tFile ();
+    
+    friend void TiledOutputFile::copyPixels (InputFile &);
+    
+    Data *		_data;
+};
+
+
+} // namespace Imf
+
+#endif