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#ifndef lint |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* Perform tone mapping on TIFF input. |
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* |
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* Externals declared in tmaptiff.h |
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*/ |
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|
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/* ==================================================================== |
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* The Radiance Software License, Version 1.0 |
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* |
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* Copyright (c) 1990 - 2002 The Regents of the University of California, |
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* through Lawrence Berkeley National Laboratory. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. The end-user documentation included with the redistribution, |
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* if any, must include the following acknowledgment: |
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* "This product includes Radiance software |
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* (http://radsite.lbl.gov/) |
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* developed by the Lawrence Berkeley National Laboratory |
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* (http://www.lbl.gov/)." |
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* Alternately, this acknowledgment may appear in the software itself, |
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* if and wherever such third-party acknowledgments normally appear. |
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* |
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* 4. The names "Radiance," "Lawrence Berkeley National Laboratory" |
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* and "The Regents of the University of California" must |
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* not be used to endorse or promote products derived from this |
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* software without prior written permission. For written |
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* permission, please contact [email protected]. |
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* |
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* 5. Products derived from this software may not be called "Radiance", |
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* nor may "Radiance" appear in their name, without prior written |
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* permission of Lawrence Berkeley National Laboratory. |
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* |
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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* DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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* 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 |
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This software consists of voluntary contributions made by many |
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* individuals on behalf of Lawrence Berkeley National Laboratory. For more |
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* information on Lawrence Berkeley National Laboratory, please see |
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* <http://www.lbl.gov/>. |
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*/ |
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|
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#include <stdio.h> |
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#include "tiffio.h" |
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#include "tmprivat.h" |
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#include "tmaptiff.h" |
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|
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|
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int |
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tmLoadTIFF(lpp, cpp, xp, yp, fname, tp) /* load and convert TIFF */ |
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TMbright **lpp; |
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BYTE **cpp; |
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int *xp, *yp; |
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char *fname; |
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TIFF *tp; |
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{ |
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char *funcName = fname==NULL ? "tmLoadTIFF" : fname; |
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TIFF *tif; |
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int err; |
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union {uint16 *w; uint32 *l; MEM_PTR p;} sl; |
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uint16 comp, phot, pconf; |
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uint32 width, height; |
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double stonits; |
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int y; |
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/* check arguments */ |
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if (tmTop == NULL) |
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returnErr(TM_E_TMINVAL); |
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if (lpp == NULL | xp == NULL | yp == NULL | |
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(fname == NULL & tp == NULL)) |
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returnErr(TM_E_ILLEGAL); |
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/* check/get TIFF tags */ |
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sl.p = NULL; *lpp = NULL; |
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if (cpp != TM_NOCHROMP) *cpp = TM_NOCHROM; |
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err = TM_E_BADFILE; |
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if ((tif = tp) == NULL && (tif = TIFFOpen(fname, "r")) == NULL) |
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returnErr(TM_E_BADFILE); |
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TIFFGetFieldDefaulted(tif, TIFFTAG_PHOTOMETRIC, &phot); |
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TIFFGetFieldDefaulted(tif, TIFFTAG_COMPRESSION, &comp); |
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if (!TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &width) || |
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!TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &height)) |
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goto done; |
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*xp = width; *yp = height; |
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TIFFGetFieldDefaulted(tif, TIFFTAG_PLANARCONFIG, &pconf); |
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if (pconf != PLANARCONFIG_CONTIG) |
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goto done; |
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if (!TIFFGetField(tif, TIFFTAG_STONITS, &stonits)) |
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stonits = 1.; |
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if (phot == PHOTOMETRIC_LOGLUV) { |
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if (comp != COMPRESSION_SGILOG && comp != COMPRESSION_SGILOG24) |
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goto done; |
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TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_RAW); |
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sl.l = (uint32 *)malloc(width*sizeof(uint32)); |
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if (cpp != TM_NOCHROMP) { |
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*cpp = (BYTE *)malloc(width*height*3*sizeof(BYTE)); |
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if (*cpp == NULL) { |
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err = TM_E_NOMEM; |
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goto done; |
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} |
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} |
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} else if (phot == PHOTOMETRIC_LOGL) { |
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if (comp != COMPRESSION_SGILOG) |
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goto done; |
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TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_16BIT); |
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sl.w = (uint16 *)malloc(width*sizeof(uint16)); |
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} else |
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goto done; |
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*lpp = (TMbright *)malloc(width*height*sizeof(TMbright)); |
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if (sl.p == NULL | *lpp == NULL) { |
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err = TM_E_NOMEM; |
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goto done; |
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} |
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/* set input color space */ |
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tmSetSpace(TM_XYZPRIM, stonits); |
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/* read and convert each scanline */ |
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for (y = 0; y < height; y++) { |
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if (TIFFReadScanline(tif, sl.p, y, 0) < 0) { |
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err = TM_E_BADFILE; |
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break; |
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} |
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if (phot == PHOTOMETRIC_LOGL) |
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err = tmCvL16(*lpp + y*width, sl.w, width); |
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else if (comp == COMPRESSION_SGILOG24) |
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err = tmCvLuv24(*lpp + y*width, |
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cpp==TM_NOCHROMP ? TM_NOCHROM : *cpp+y*3*width, |
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sl.l, width); |
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else |
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err = tmCvLuv32(*lpp + y*width, |
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cpp==TM_NOCHROMP ? TM_NOCHROM : *cpp+y*3*width, |
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sl.l, width); |
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if (err != TM_E_OK) |
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break; |
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} |
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done: /* clean up */ |
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if (tp == NULL) |
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TIFFClose(tif); |
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if (sl.p != NULL) |
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free(sl.p); |
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if (err != TM_E_OK) { /* free buffers on error */ |
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if (*lpp != NULL) |
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free((MEM_PTR)*lpp); |
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*lpp = NULL; |
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if (cpp != TM_NOCHROMP) { |
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if (*cpp != TM_NOCHROM) |
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free((MEM_PTR)*cpp); |
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*cpp = NULL; |
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} |
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*xp = *yp = 0; |
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returnErr(err); |
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} |
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returnOK; |
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} |
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|
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|
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/* |
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* Load and tone-map a SGILOG TIFF. |
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* Beware of greyscale input -- you must check the PHOTOMETRIC tag to |
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* determine that the returned array contains only grey values, not RGB. |
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* As in tmMapPicture(), grey values are also returned if flags&TM_F_BW. |
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*/ |
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int |
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tmMapTIFF(psp, xp, yp, flags, monpri, gamval, Lddyn, Ldmax, fname, tp) |
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BYTE **psp; |
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int *xp, *yp; |
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int flags; |
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RGBPRIMP monpri; |
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double gamval, Lddyn, Ldmax; |
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char *fname; |
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TIFF *tp; |
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{ |
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char *funcName = fname==NULL ? "tmMapTIFF" : fname; |
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TMbright *lp; |
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BYTE *cp; |
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int err; |
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/* check arguments */ |
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if (psp == NULL | xp == NULL | yp == NULL | monpri == NULL | |
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(fname == NULL & tp == NULL)) |
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returnErr(TM_E_ILLEGAL); |
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if (gamval < MINGAM) gamval = DEFGAM; |
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if (Lddyn < MINLDDYN) Lddyn = DEFLDDYN; |
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if (Ldmax < MINLDMAX) Ldmax = DEFLDMAX; |
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if (flags & TM_F_BW) monpri = stdprims; |
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/* initialize tone mapping */ |
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if (tmInit(flags, monpri, gamval) == NULL) |
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returnErr(TM_E_NOMEM); |
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/* load and convert TIFF */ |
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cp = TM_NOCHROM; |
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err = tmLoadTIFF(&lp, flags&TM_F_BW ? TM_NOCHROMP : &cp, |
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xp, yp, fname, tp); |
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if (err != TM_E_OK) { |
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tmDone(NULL); |
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return(err); |
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} |
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if (cp == TM_NOCHROM) { |
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*psp = (BYTE *)malloc(*xp * *yp * sizeof(BYTE)); |
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if (*psp == NULL) { |
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free((MEM_PTR)lp); |
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tmDone(NULL); |
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returnErr(TM_E_NOMEM); |
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} |
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} else |
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*psp = cp; |
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/* compute color mapping */ |
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err = tmAddHisto(lp, *xp * *yp, 1); |
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if (err != TM_E_OK) |
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goto done; |
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err = tmComputeMapping(gamval, Lddyn, Ldmax); |
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if (err != TM_E_OK) |
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goto done; |
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/* map pixels */ |
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err = tmMapPixels(*psp, lp, cp, *xp * *yp); |
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|
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done: /* clean up */ |
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free((MEM_PTR)lp); |
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tmDone(NULL); |
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if (err != TM_E_OK) { /* free memory on error */ |
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free((MEM_PTR)*psp); |
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*psp = NULL; |
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*xp = *yp = 0; |
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returnErr(err); |
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} |
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returnOK; |
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} |
