some indentation restoration, no content change
This commit is contained in:
Joris Van Damme
parent
84281a8949
commit
0993cc0252
@ -1,4 +1,4 @@
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/* $Id: tif_getimage.c,v 1.50 2006-03-25 03:09:24 joris Exp $ */
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/* $Id: tif_getimage.c,v 1.51 2006-03-26 16:39:30 joris Exp $ */
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/*
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* Copyright (c) 1991-1997 Sam Leffler
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@ -221,221 +221,224 @@ isCCITTCompression(TIFF* tif)
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int
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TIFFRGBAImageBegin(TIFFRGBAImage* img, TIFF* tif, int stop, char emsg[1024])
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{
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uint16* sampleinfo;
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uint16 extrasamples;
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uint16 planarconfig;
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uint16 compress;
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int colorchannels;
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uint16 *red_orig, *green_orig, *blue_orig;
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int n_color;
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uint16* sampleinfo;
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uint16 extrasamples;
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uint16 planarconfig;
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uint16 compress;
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int colorchannels;
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uint16 *red_orig, *green_orig, *blue_orig;
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int n_color;
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/* Initialize to normal values */
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img->row_offset = 0;
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img->col_offset = 0;
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img->redcmap = NULL;
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img->greencmap = NULL;
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img->bluecmap = NULL;
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img->req_orientation = ORIENTATION_BOTLEFT; /* It is the default */
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img->tif = tif;
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img->stoponerr = stop;
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TIFFGetFieldDefaulted(tif, TIFFTAG_BITSPERSAMPLE, &img->bitspersample);
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switch (img->bitspersample) {
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case 1: case 2: case 4:
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case 8: case 16:
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break;
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default:
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sprintf(emsg, "Sorry, can not handle images with %d-bit samples",
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img->bitspersample);
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return (0);
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}
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img->alpha = 0;
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TIFFGetFieldDefaulted(tif, TIFFTAG_SAMPLESPERPIXEL, &img->samplesperpixel);
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TIFFGetFieldDefaulted(tif, TIFFTAG_EXTRASAMPLES,
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&extrasamples, &sampleinfo);
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if (extrasamples >= 1)
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{
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switch (sampleinfo[0]) {
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case EXTRASAMPLE_UNSPECIFIED: /* Workaround for some images without */
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if (img->samplesperpixel > 3) /* correct info about alpha channel */
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img->alpha = EXTRASAMPLE_ASSOCALPHA;
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break;
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case EXTRASAMPLE_ASSOCALPHA: /* data is pre-multiplied */
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case EXTRASAMPLE_UNASSALPHA: /* data is not pre-multiplied */
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img->alpha = sampleinfo[0];
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break;
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/* Initialize to normal values */
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img->row_offset = 0;
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img->col_offset = 0;
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img->redcmap = NULL;
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img->greencmap = NULL;
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img->bluecmap = NULL;
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img->req_orientation = ORIENTATION_BOTLEFT; /* It is the default */
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img->tif = tif;
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img->stoponerr = stop;
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TIFFGetFieldDefaulted(tif, TIFFTAG_BITSPERSAMPLE, &img->bitspersample);
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switch (img->bitspersample) {
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case 1:
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case 2:
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case 4:
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case 8:
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case 16:
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break;
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default:
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sprintf(emsg, "Sorry, can not handle images with %d-bit samples",
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img->bitspersample);
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return (0);
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}
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img->alpha = 0;
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TIFFGetFieldDefaulted(tif, TIFFTAG_SAMPLESPERPIXEL, &img->samplesperpixel);
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TIFFGetFieldDefaulted(tif, TIFFTAG_EXTRASAMPLES,
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&extrasamples, &sampleinfo);
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if (extrasamples >= 1)
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{
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switch (sampleinfo[0]) {
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case EXTRASAMPLE_UNSPECIFIED: /* Workaround for some images without */
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if (img->samplesperpixel > 3) /* correct info about alpha channel */
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img->alpha = EXTRASAMPLE_ASSOCALPHA;
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break;
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case EXTRASAMPLE_ASSOCALPHA: /* data is pre-multiplied */
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case EXTRASAMPLE_UNASSALPHA: /* data is not pre-multiplied */
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img->alpha = sampleinfo[0];
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break;
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}
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}
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}
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#ifdef DEFAULT_EXTRASAMPLE_AS_ALPHA
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if( !TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &img->photometric))
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img->photometric = PHOTOMETRIC_MINISWHITE;
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if( !TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &img->photometric))
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img->photometric = PHOTOMETRIC_MINISWHITE;
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if( extrasamples == 0
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&& img->samplesperpixel == 4
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&& img->photometric == PHOTOMETRIC_RGB )
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{
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img->alpha = EXTRASAMPLE_ASSOCALPHA;
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extrasamples = 1;
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}
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if( extrasamples == 0
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&& img->samplesperpixel == 4
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&& img->photometric == PHOTOMETRIC_RGB )
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{
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img->alpha = EXTRASAMPLE_ASSOCALPHA;
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extrasamples = 1;
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}
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#endif
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colorchannels = img->samplesperpixel - extrasamples;
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TIFFGetFieldDefaulted(tif, TIFFTAG_COMPRESSION, &compress);
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TIFFGetFieldDefaulted(tif, TIFFTAG_PLANARCONFIG, &planarconfig);
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if (!TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &img->photometric)) {
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switch (colorchannels) {
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case 1:
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if (isCCITTCompression(tif))
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img->photometric = PHOTOMETRIC_MINISWHITE;
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else
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img->photometric = PHOTOMETRIC_MINISBLACK;
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break;
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case 3:
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img->photometric = PHOTOMETRIC_RGB;
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break;
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default:
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sprintf(emsg, "Missing needed %s tag", photoTag);
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return (0);
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}
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}
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switch (img->photometric) {
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case PHOTOMETRIC_PALETTE:
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if (!TIFFGetField(tif, TIFFTAG_COLORMAP,
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&red_orig, &green_orig, &blue_orig)) {
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sprintf(emsg, "Missing required \"Colormap\" tag");
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return (0);
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colorchannels = img->samplesperpixel - extrasamples;
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TIFFGetFieldDefaulted(tif, TIFFTAG_COMPRESSION, &compress);
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TIFFGetFieldDefaulted(tif, TIFFTAG_PLANARCONFIG, &planarconfig);
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if (!TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &img->photometric)) {
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switch (colorchannels) {
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case 1:
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if (isCCITTCompression(tif))
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img->photometric = PHOTOMETRIC_MINISWHITE;
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else
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img->photometric = PHOTOMETRIC_MINISBLACK;
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break;
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case 3:
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img->photometric = PHOTOMETRIC_RGB;
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break;
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default:
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sprintf(emsg, "Missing needed %s tag", photoTag);
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return (0);
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}
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}
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switch (img->photometric) {
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case PHOTOMETRIC_PALETTE:
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if (!TIFFGetField(tif, TIFFTAG_COLORMAP,
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&red_orig, &green_orig, &blue_orig)) {
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sprintf(emsg, "Missing required \"Colormap\" tag");
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return (0);
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}
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/* copy the colormaps so we can modify them */
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n_color = (1L << img->bitspersample);
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img->redcmap = (uint16 *) _TIFFmalloc(sizeof(uint16)*n_color);
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img->greencmap = (uint16 *) _TIFFmalloc(sizeof(uint16)*n_color);
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img->bluecmap = (uint16 *) _TIFFmalloc(sizeof(uint16)*n_color);
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if( !img->redcmap || !img->greencmap || !img->bluecmap ) {
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sprintf(emsg, "Out of memory for colormap copy");
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return (0);
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}
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/* copy the colormaps so we can modify them */
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n_color = (1L << img->bitspersample);
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img->redcmap = (uint16 *) _TIFFmalloc(sizeof(uint16)*n_color);
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img->greencmap = (uint16 *) _TIFFmalloc(sizeof(uint16)*n_color);
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img->bluecmap = (uint16 *) _TIFFmalloc(sizeof(uint16)*n_color);
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if( !img->redcmap || !img->greencmap || !img->bluecmap ) {
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sprintf(emsg, "Out of memory for colormap copy");
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return (0);
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}
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_TIFFmemcpy( img->redcmap, red_orig, n_color * 2 );
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_TIFFmemcpy( img->greencmap, green_orig, n_color * 2 );
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_TIFFmemcpy( img->bluecmap, blue_orig, n_color * 2 );
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/* fall thru... */
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case PHOTOMETRIC_MINISWHITE:
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case PHOTOMETRIC_MINISBLACK:
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if (planarconfig == PLANARCONFIG_CONTIG
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&& img->samplesperpixel != 1
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&& img->bitspersample < 8 ) {
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sprintf(emsg,
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"Sorry, can not handle contiguous data with %s=%d, "
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"and %s=%d and Bits/Sample=%d",
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photoTag, img->photometric,
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"Samples/pixel", img->samplesperpixel,
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img->bitspersample);
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return (0);
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}
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break;
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case PHOTOMETRIC_YCBCR:
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if (planarconfig != PLANARCONFIG_CONTIG) {
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sprintf(emsg, "Sorry, can not handle YCbCr images with %s=%d",
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"Planarconfiguration", planarconfig);
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return (0);
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}
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/* It would probably be nice to have a reality check here. */
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if (planarconfig == PLANARCONFIG_CONTIG)
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/* can rely on libjpeg to convert to RGB */
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/* XXX should restore current state on exit */
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switch (compress) {
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case COMPRESSION_OJPEG:
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case COMPRESSION_JPEG:
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TIFFSetField(tif, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB);
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img->photometric = PHOTOMETRIC_RGB;
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break;
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_TIFFmemcpy( img->redcmap, red_orig, n_color * 2 );
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_TIFFmemcpy( img->greencmap, green_orig, n_color * 2 );
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_TIFFmemcpy( img->bluecmap, blue_orig, n_color * 2 );
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default:
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/* do nothing */;
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break;
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}
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break;
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case PHOTOMETRIC_RGB:
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if (colorchannels < 3) {
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sprintf(emsg, "Sorry, can not handle RGB image with %s=%d",
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"Color channels", colorchannels);
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return (0);
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/* fall thru... */
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case PHOTOMETRIC_MINISWHITE:
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case PHOTOMETRIC_MINISBLACK:
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if (planarconfig == PLANARCONFIG_CONTIG
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&& img->samplesperpixel != 1
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&& img->bitspersample < 8 ) {
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sprintf(emsg,
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"Sorry, can not handle contiguous data with %s=%d, "
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"and %s=%d and Bits/Sample=%d",
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photoTag, img->photometric,
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"Samples/pixel", img->samplesperpixel,
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img->bitspersample);
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return (0);
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}
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break;
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case PHOTOMETRIC_YCBCR:
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if (planarconfig != PLANARCONFIG_CONTIG) {
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sprintf(emsg, "Sorry, can not handle YCbCr images with %s=%d",
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"Planarconfiguration", planarconfig);
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return (0);
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}
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/* It would probably be nice to have a reality check here. */
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if (planarconfig == PLANARCONFIG_CONTIG)
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/* can rely on libjpeg to convert to RGB */
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/* XXX should restore current state on exit */
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switch (compress) {
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case COMPRESSION_OJPEG:
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case COMPRESSION_JPEG:
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TIFFSetField(tif, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB);
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img->photometric = PHOTOMETRIC_RGB;
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break;
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default:
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/* do nothing */;
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break;
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}
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break;
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case PHOTOMETRIC_RGB:
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if (colorchannels < 3) {
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sprintf(emsg, "Sorry, can not handle RGB image with %s=%d",
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"Color channels", colorchannels);
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return (0);
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}
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break;
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case PHOTOMETRIC_SEPARATED:
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{
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uint16 inkset;
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TIFFGetFieldDefaulted(tif, TIFFTAG_INKSET, &inkset);
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if (inkset != INKSET_CMYK) {
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sprintf(emsg, "Sorry, can not handle separated image with %s=%d",
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"InkSet", inkset);
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return (0);
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}
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if (img->samplesperpixel < 4) {
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sprintf(emsg, "Sorry, can not handle separated image with %s=%d",
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"Samples/pixel", img->samplesperpixel);
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return (0);
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}
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}
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break;
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case PHOTOMETRIC_LOGL:
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if (compress != COMPRESSION_SGILOG) {
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sprintf(emsg, "Sorry, LogL data must have %s=%d",
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"Compression", COMPRESSION_SGILOG);
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return (0);
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}
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TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_8BIT);
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img->photometric = PHOTOMETRIC_MINISBLACK; /* little white lie */
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img->bitspersample = 8;
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break;
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case PHOTOMETRIC_LOGLUV:
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if (compress != COMPRESSION_SGILOG && compress != COMPRESSION_SGILOG24) {
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sprintf(emsg, "Sorry, LogLuv data must have %s=%d or %d",
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"Compression", COMPRESSION_SGILOG, COMPRESSION_SGILOG24);
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return (0);
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}
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if (planarconfig != PLANARCONFIG_CONTIG) {
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sprintf(emsg, "Sorry, can not handle LogLuv images with %s=%d",
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"Planarconfiguration", planarconfig);
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return (0);
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}
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TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_8BIT);
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img->photometric = PHOTOMETRIC_RGB; /* little white lie */
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img->bitspersample = 8;
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break;
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case PHOTOMETRIC_CIELAB:
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break;
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default:
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sprintf(emsg, "Sorry, can not handle image with %s=%d",
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photoTag, img->photometric);
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return (0);
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}
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break;
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case PHOTOMETRIC_SEPARATED: {
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uint16 inkset;
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TIFFGetFieldDefaulted(tif, TIFFTAG_INKSET, &inkset);
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if (inkset != INKSET_CMYK) {
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sprintf(emsg, "Sorry, can not handle separated image with %s=%d",
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"InkSet", inkset);
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return (0);
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img->Map = NULL;
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img->BWmap = NULL;
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img->PALmap = NULL;
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img->ycbcr = NULL;
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img->cielab = NULL;
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TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &img->width);
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TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &img->height);
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TIFFGetFieldDefaulted(tif, TIFFTAG_ORIENTATION, &img->orientation);
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img->isContig =
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!(planarconfig == PLANARCONFIG_SEPARATE && colorchannels > 1);
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if (img->isContig) {
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img->get = TIFFIsTiled(tif) ? gtTileContig : gtStripContig;
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if (!pickTileContigCase(img)) {
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sprintf(emsg, "Sorry, can not handle image");
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return 0;
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}
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} else {
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img->get = TIFFIsTiled(tif) ? gtTileSeparate : gtStripSeparate;
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if (!pickTileSeparateCase(img)) {
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sprintf(emsg, "Sorry, can not handle image");
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return 0;
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}
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}
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if (img->samplesperpixel < 4) {
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sprintf(emsg, "Sorry, can not handle separated image with %s=%d",
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"Samples/pixel", img->samplesperpixel);
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return (0);
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}
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break;
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}
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case PHOTOMETRIC_LOGL:
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if (compress != COMPRESSION_SGILOG) {
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sprintf(emsg, "Sorry, LogL data must have %s=%d",
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"Compression", COMPRESSION_SGILOG);
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return (0);
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}
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TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_8BIT);
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img->photometric = PHOTOMETRIC_MINISBLACK; /* little white lie */
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img->bitspersample = 8;
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break;
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case PHOTOMETRIC_LOGLUV:
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if (compress != COMPRESSION_SGILOG && compress != COMPRESSION_SGILOG24) {
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sprintf(emsg, "Sorry, LogLuv data must have %s=%d or %d",
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"Compression", COMPRESSION_SGILOG, COMPRESSION_SGILOG24);
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return (0);
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}
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if (planarconfig != PLANARCONFIG_CONTIG) {
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sprintf(emsg, "Sorry, can not handle LogLuv images with %s=%d",
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"Planarconfiguration", planarconfig);
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return (0);
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}
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TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_8BIT);
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img->photometric = PHOTOMETRIC_RGB; /* little white lie */
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img->bitspersample = 8;
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break;
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case PHOTOMETRIC_CIELAB:
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break;
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default:
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sprintf(emsg, "Sorry, can not handle image with %s=%d",
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photoTag, img->photometric);
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return (0);
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}
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img->Map = NULL;
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img->BWmap = NULL;
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img->PALmap = NULL;
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img->ycbcr = NULL;
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img->cielab = NULL;
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TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &img->width);
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TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &img->height);
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TIFFGetFieldDefaulted(tif, TIFFTAG_ORIENTATION, &img->orientation);
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img->isContig =
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!(planarconfig == PLANARCONFIG_SEPARATE && colorchannels > 1);
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if (img->isContig) {
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img->get = TIFFIsTiled(tif) ? gtTileContig : gtStripContig;
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if (!pickTileContigCase(img)) {
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sprintf(emsg, "Sorry, can not handle image");
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return 0;
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}
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} else {
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img->get = TIFFIsTiled(tif) ? gtTileSeparate : gtStripSeparate;
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if (!pickTileSeparateCase(img)) {
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sprintf(emsg, "Sorry, can not handle image");
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return 0;
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}
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}
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return 1;
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return 1;
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}
|
||||
|
||||
int
|
||||
|
||||
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Reference in New Issue
Block a user