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Open Source Computer Vision Library
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89 lines
3.9 KiB
89 lines
3.9 KiB
/*M/////////////////////////////////////////////////////////////////////////////////////// |
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// |
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// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. |
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// |
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// By downloading, copying, installing or using the software you agree to this license. |
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// If you do not agree to this license, do not download, install, |
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// copy or use the software. |
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// |
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// |
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// License Agreement |
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// For Open Source Computer Vision Library |
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// |
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// Copyright (C) 2000-2008, Intel Corporation, all rights reserved. |
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// Copyright (C) 2009, Willow Garage Inc., all rights reserved. |
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// Third party copyrights are property of their respective owners. |
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// |
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// Redistribution and use in source and binary forms, with or without modification, |
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// are permitted provided that the following conditions are met: |
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// |
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// * Redistribution's of source code must retain the above copyright notice, |
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// this list of conditions and the following disclaimer. |
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// |
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// * Redistribution's in binary form must reproduce the above copyright notice, |
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// this list of conditions and the following disclaimer in the documentation |
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// and/or other materials provided with the distribution. |
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// |
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// * The name of the copyright holders may not be used to endorse or promote products |
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// derived from this software without specific prior written permission. |
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// |
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// This software is provided by the copyright holders and contributors "as is" and |
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// any express or implied warranties, including, but not limited to, the implied |
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// warranties of merchantability and fitness for a particular purpose are disclaimed. |
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// In no event shall the Intel Corporation or contributors be liable for any direct, |
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// indirect, incidental, special, exemplary, or consequential damages |
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// (including, but not limited to, procurement of substitute goods or services; |
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// loss of use, data, or profits; or business interruption) however caused |
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// and on any theory of liability, whether in contract, strict liability, |
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// or tort (including negligence or otherwise) arising in any way out of |
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// the use of this software, even if advised of the possibility of such damage. |
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// |
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//M*/ |
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#ifndef _RGBE_HDR_H_ |
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#define _RGBE_HDR_H_ |
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// posted to http://www.graphics.cornell.edu/~bjw/ |
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// written by Bruce Walter (bjw@graphics.cornell.edu) 5/26/95 |
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// based on code written by Greg Ward |
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#include <stdio.h> |
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typedef struct { |
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int valid; /* indicate which fields are valid */ |
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char programtype[16]; /* listed at beginning of file to identify it |
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* after "#?". defaults to "RGBE" */ |
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float gamma; /* image has already been gamma corrected with |
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* given gamma. defaults to 1.0 (no correction) */ |
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float exposure; /* a value of 1.0 in an image corresponds to |
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* <exposure> watts/steradian/m^2. |
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* defaults to 1.0 */ |
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} rgbe_header_info; |
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/* flags indicating which fields in an rgbe_header_info are valid */ |
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#define RGBE_VALID_PROGRAMTYPE 0x01 |
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#define RGBE_VALID_GAMMA 0x02 |
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#define RGBE_VALID_EXPOSURE 0x04 |
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/* return codes for rgbe routines */ |
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#define RGBE_RETURN_SUCCESS 0 |
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#define RGBE_RETURN_FAILURE -1 |
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/* read or write headers */ |
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/* you may set rgbe_header_info to null if you want to */ |
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int RGBE_WriteHeader(FILE *fp, int width, int height, rgbe_header_info *info); |
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int RGBE_ReadHeader(FILE *fp, int *width, int *height, rgbe_header_info *info); |
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/* read or write pixels */ |
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/* can read or write pixels in chunks of any size including single pixels*/ |
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int RGBE_WritePixels(FILE *fp, float *data, int numpixels); |
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int RGBE_ReadPixels(FILE *fp, float *data, int numpixels); |
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/* read or write run length encoded files */ |
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/* must be called to read or write whole scanlines */ |
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int RGBE_WritePixels_RLE(FILE *fp, float *data, int scanline_width, |
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int num_scanlines); |
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int RGBE_ReadPixels_RLE(FILE *fp, float *data, int scanline_width, |
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int num_scanlines); |
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#endif/*_RGBE_HDR_H_*/
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