mirror of
https://github.com/opencv/opencv.git
synced 2024-11-24 19:20:28 +08:00
878af7ada8
3rdparty: update OpenEXR 2.3.0 (#14725) * openexr 2.2.1 * openexr 2.3.0 * openexr: build fixes * openexr: build dwa tables on-demand
274 lines
8.0 KiB
C++
274 lines
8.0 KiB
C++
///////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Copyright (c) 2002, 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_COMPRESSOR_H
|
|
#define INCLUDED_IMF_COMPRESSOR_H
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//
|
|
// class Compressor
|
|
//
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#include "ImfCompression.h"
|
|
#include "ImathBox.h"
|
|
#include "ImfNamespace.h"
|
|
#include "ImfExport.h"
|
|
#include "ImfForward.h"
|
|
|
|
#include <stdlib.h>
|
|
|
|
|
|
OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER
|
|
|
|
|
|
class Compressor
|
|
{
|
|
public:
|
|
|
|
//---------------------------------------------
|
|
// Constructor -- hdr is the header of the file
|
|
// that will be compressed or uncompressed
|
|
//---------------------------------------------
|
|
|
|
IMF_EXPORT
|
|
Compressor (const Header &hdr);
|
|
|
|
|
|
//-----------
|
|
// Destructor
|
|
//-----------
|
|
|
|
IMF_EXPORT
|
|
virtual ~Compressor ();
|
|
|
|
|
|
//----------------------------------------------
|
|
// Maximum number of scan lines processed by
|
|
// a single call to compress() and uncompress().
|
|
//----------------------------------------------
|
|
|
|
IMF_EXPORT
|
|
virtual int numScanLines () const = 0;
|
|
|
|
|
|
//--------------------------------------------
|
|
// Format of the pixel data read and written
|
|
// by the compress() and uncompress() methods.
|
|
// The default implementation of format()
|
|
// returns XDR.
|
|
//--------------------------------------------
|
|
|
|
enum Format
|
|
{
|
|
NATIVE, // the machine's native format
|
|
XDR // Xdr format
|
|
};
|
|
|
|
IMF_EXPORT
|
|
virtual Format format () const;
|
|
|
|
|
|
//----------------------------
|
|
// Access to the file's header
|
|
//----------------------------
|
|
|
|
const Header & header () const {return _header;}
|
|
|
|
|
|
//-------------------------------------------------------------------------
|
|
// Compress an array of bytes that represents the contents of up to
|
|
// numScanLines() scan lines:
|
|
//
|
|
// inPtr Input buffer (uncompressed data).
|
|
//
|
|
// inSize Number of bytes in the input buffer
|
|
//
|
|
// minY Minimum y coordinate of the scan lines to
|
|
// be compressed
|
|
//
|
|
// outPtr Pointer to output buffer
|
|
//
|
|
// return value Size of compressed data in output buffer
|
|
//
|
|
// Arrangement of uncompressed pixel data in the input buffer:
|
|
//
|
|
// Before calling
|
|
//
|
|
// compress (buf, size, minY, ...);
|
|
//
|
|
// the InputFile::writePixels() method gathers pixel data from the
|
|
// frame buffer, fb, and places them in buffer buf, like this:
|
|
//
|
|
// char *endOfBuf = buf;
|
|
//
|
|
// for (int y = minY;
|
|
// y <= min (minY + numScanLines() - 1, header().dataWindow().max.y);
|
|
// ++y)
|
|
// {
|
|
// for (ChannelList::ConstIterator c = header().channels().begin();
|
|
// c != header().channels().end();
|
|
// ++c)
|
|
// {
|
|
// if (modp (y, c.channel().ySampling) != 0)
|
|
// continue;
|
|
//
|
|
// for (int x = header().dataWindow().min.x;
|
|
// x <= header().dataWindow().max.x;
|
|
// ++x)
|
|
// {
|
|
// if (modp (x, c.channel().xSampling) != 0)
|
|
// continue;
|
|
//
|
|
// Xdr::write<CharPtrIO> (endOfBuf, fb.pixel (c, x, y));
|
|
// }
|
|
// }
|
|
// }
|
|
//
|
|
// int size = endOfBuf - buf;
|
|
//
|
|
//-------------------------------------------------------------------------
|
|
|
|
IMF_EXPORT
|
|
virtual int compress (const char *inPtr,
|
|
int inSize,
|
|
int minY,
|
|
const char *&outPtr) = 0;
|
|
|
|
IMF_EXPORT
|
|
virtual int compressTile (const char *inPtr,
|
|
int inSize,
|
|
IMATH_NAMESPACE::Box2i range,
|
|
const char *&outPtr);
|
|
|
|
//-------------------------------------------------------------------------
|
|
// Uncompress an array of bytes that has been compressed by compress():
|
|
//
|
|
// inPtr Input buffer (compressed data).
|
|
//
|
|
// inSize Number of bytes in the input buffer
|
|
//
|
|
// minY Minimum y coordinate of the scan lines to
|
|
// be uncompressed
|
|
//
|
|
// outPtr Pointer to output buffer
|
|
//
|
|
// return value Size of uncompressed data in output buffer
|
|
//
|
|
//-------------------------------------------------------------------------
|
|
|
|
IMF_EXPORT
|
|
virtual int uncompress (const char *inPtr,
|
|
int inSize,
|
|
int minY,
|
|
const char *&outPtr) = 0;
|
|
|
|
IMF_EXPORT
|
|
virtual int uncompressTile (const char *inPtr,
|
|
int inSize,
|
|
IMATH_NAMESPACE::Box2i range,
|
|
const char *&outPtr);
|
|
|
|
private:
|
|
|
|
const Header & _header;
|
|
};
|
|
|
|
|
|
//--------------------------------------
|
|
// Test if c is a valid compression type
|
|
//--------------------------------------
|
|
|
|
IMF_EXPORT
|
|
bool isValidCompression (Compression c);
|
|
|
|
//--------------------------------------
|
|
// Test if c is valid for deep data
|
|
//--------------------------------------
|
|
|
|
IMF_EXPORT
|
|
bool isValidDeepCompression (Compression c);
|
|
|
|
|
|
//-----------------------------------------------------------------
|
|
// Construct a Compressor for compression type c:
|
|
//
|
|
// maxScanLineSize Maximum number of bytes per uncompressed
|
|
// scan line.
|
|
//
|
|
// header Header of the input or output file whose
|
|
// pixels will be compressed or uncompressed.
|
|
//
|
|
// return value A pointer to a new Compressor object (it
|
|
// is the caller's responsibility to delete
|
|
// the object), or 0 (if c is NO_COMPRESSION).
|
|
//
|
|
//-----------------------------------------------------------------
|
|
|
|
IMF_EXPORT
|
|
Compressor * newCompressor (Compression c,
|
|
size_t maxScanLineSize,
|
|
const Header &hdr);
|
|
|
|
|
|
//-----------------------------------------------------------------
|
|
// Construct a Compressor for compression type c for a tiled image:
|
|
//
|
|
// tileLineSize Maximum number of bytes per uncompressed
|
|
// line in a tile.
|
|
//
|
|
// numTileLines Maximum number of lines in a tile.
|
|
//
|
|
// header Header of the input or output file whose
|
|
// pixels will be compressed or uncompressed.
|
|
//
|
|
// return value A pointer to a new Compressor object (it
|
|
// is the caller's responsibility to delete
|
|
// the object), or 0 (if c is NO_COMPRESSION).
|
|
//
|
|
//-----------------------------------------------------------------
|
|
|
|
IMF_EXPORT
|
|
Compressor * newTileCompressor (Compression c,
|
|
size_t tileLineSize,
|
|
size_t numTileLines,
|
|
const Header &hdr);
|
|
|
|
|
|
OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT
|
|
|
|
#endif
|