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//
// SPDX-License-Identifier: BSD-3-Clause
// Copyright (c) Contributors to the OpenEXR Project.
//
#ifndef INCLUDED_IMF_FLAT_IMAGE_IO_H
#define INCLUDED_IMF_FLAT_IMAGE_IO_H
//----------------------------------------------------------------------------
//
// Functions to load flat images from OpenEXR files
// and to save flat images in OpenEXR files.
//
//----------------------------------------------------------------------------
#include "ImfFlatImage.h"
#include "ImfImageDataWindow.h"
#include "ImfUtilExport.h"
OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER
//
// saveFlatImage (n, h, i, d) or
// saveFlatImage (n, i)
//
// Saves image i in an OpenEXR file with name n. The file will be
// tiled if the image has more than one level, or if a header, h, is
// given and contains a tile description attribute; otherwise the
// file will be scan-line based.
//
// If header h is given, then the channel list in h is replaced with
// the channel list in i, and the levelMode and the levelRounding mode
// fields of the tile description are replaced with the level mode
// and the levelRounding mode of i. In addition, if the data window
// source flag, d, is set to USE_IMAGE_DATA_WINDOW, then the data
// window in the image is copied into the header; if d is set to
// USE_HEADER_DATA_WINDOW, then the data window in the header is
// replaced with the intersection of the original data window in the
// header and the data window in the image. The modified header then
// becomes the header of the image file.
//
IMFUTIL_EXPORT
void
saveFlatImage
(const std::string &fileName,
const Header &hdr,
const FlatImage &img,
DataWindowSource dws = USE_IMAGE_DATA_WINDOW);
IMFUTIL_EXPORT
void
saveFlatImage
(const std::string &fileName,
const FlatImage &img);
//
// loadFlatImage (n, h, i) or
// loadFlatImage (n, i)
//
// Loads flat image i from the OpenEXR file with name n.
//
// If header h is given, then the header of the file is copied into h.
//
IMFUTIL_EXPORT
void
loadFlatImage
(const std::string &fileName,
Header &hdr,
FlatImage &img);
IMFUTIL_EXPORT
void
loadFlatImage
(const std::string &fileName,
FlatImage &img);
//
// saveFlatScanLineImage (n, h, i, d) or
// saveFlatScanLineImage (n, i)
//
// Saves image i in a scan-line based flat OpenEXR file with file name n.
//
// If header h is given, then the channel list in h is replaced with
// the channel list in i. In addition, if the data window source flag, d,
// is set to USE_IMAGE_DATA_WINDOW, then the data window in the image is
// copied into the header; if d is set to USE_HEADER_DATA_WINDOW, then
// the data window in the header is replaced with the intersection of
// the original data window in the header and the data window in the
// image. The modified header then becomes the header of the image file.
//
IMFUTIL_EXPORT
void
saveFlatScanLineImage
(const std::string &fileName,
const Header &hdr,
const FlatImage &img,
DataWindowSource dws = USE_IMAGE_DATA_WINDOW);
IMFUTIL_EXPORT
void
saveFlatScanLineImage
(const std::string &fileName,
const FlatImage &img);
//
// loadFlatScanLineImage (n, h, i) or
// loadFlatScanLineImage (n, i)
//
// Loads image i from a scan-line based flat OpenEXR file with file name n.
// If header h is given, then the header of the file is copied into h.
//
IMFUTIL_EXPORT
void
loadFlatScanLineImage
(const std::string &fileName,
Header &hdr,
FlatImage &img);
IMFUTIL_EXPORT
void
loadFlatScanLineImage
(const std::string &fileName,
FlatImage &img);
//
// saveFlatTiledImage (n, h, i, d) or
// saveFlatTiledImage (n, i)
//
// Saves image i in a tiled flat OpenEXR file with file name n.
//
// If header h is given, then the channel list in h is replaced with
// the channel list i, and the levelMode and the levelRounding mode
// fields of the tile description are replaced with the level mode
// and the levelRounding mode of i. In addition, if the data window
// source flag, d, is set to USE_IMAGE_DATA_WINDOW, then the data
// window in the image is copied into the header; if d is set to
// USE_HEADER_DATA_WINDOW, then the data window in the header is
// replaced with the intersection of the original data window in the
// header and the data window in the image. The modified header then
// becomes the header of the image file.
//
// Note: USE_HEADER_DATA_WINDOW can only be used for images with
// level mode ONE_LEVEL.
//
IMFUTIL_EXPORT
void
saveFlatTiledImage
(const std::string &fileName,
const Header &hdr,
const FlatImage &img,
DataWindowSource dws = USE_IMAGE_DATA_WINDOW);
IMFUTIL_EXPORT
void
saveFlatTiledImage
(const std::string &fileName,
const FlatImage &img);
//
// loadFlatTiledImage (n, h, i) or
// loadFlatTiledImage (n, i)
//
// Loads image i from a tiled flat OpenEXR file with file name n.
// If header h is given, then the header of the file is copied into h.
//
IMFUTIL_EXPORT
void
loadFlatTiledImage
(const std::string &fileName,
Header &hdr,
FlatImage &img);
IMFUTIL_EXPORT
void
loadFlatTiledImage
(const std::string &fileName,
FlatImage &img);
OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT
#endif