diff options
Diffstat (limited to 'src/3rdparty/libtiff/libtiff/tif_dir.c')
| -rw-r--r-- | src/3rdparty/libtiff/libtiff/tif_dir.c | 50 |
1 files changed, 44 insertions, 6 deletions
diff --git a/src/3rdparty/libtiff/libtiff/tif_dir.c b/src/3rdparty/libtiff/libtiff/tif_dir.c index ad21655..f00f808 100644 --- a/src/3rdparty/libtiff/libtiff/tif_dir.c +++ b/src/3rdparty/libtiff/libtiff/tif_dir.c @@ -1,4 +1,4 @@ -/* $Id: tif_dir.c,v 1.127 2016-10-25 21:35:15 erouault Exp $ */ +/* $Id: tif_dir.c,v 1.131 2017-07-11 21:38:04 erouault Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler @@ -31,6 +31,7 @@ * (and also some miscellaneous stuff) */ #include "tiffiop.h" +#include <float.h> /* * These are used in the backwards compatibility code... @@ -154,6 +155,15 @@ bad: return (0); } +static float TIFFClampDoubleToFloat( double val ) +{ + if( val > FLT_MAX ) + return FLT_MAX; + if( val < -FLT_MAX ) + return -FLT_MAX; + return (float)val; +} + static int _TIFFVSetField(TIFF* tif, uint32 tag, va_list ap) { @@ -312,13 +322,13 @@ _TIFFVSetField(TIFF* tif, uint32 tag, va_list ap) dblval = va_arg(ap, double); if( dblval < 0 ) goto badvaluedouble; - td->td_xresolution = (float) dblval; + td->td_xresolution = TIFFClampDoubleToFloat( dblval ); break; case TIFFTAG_YRESOLUTION: dblval = va_arg(ap, double); if( dblval < 0 ) goto badvaluedouble; - td->td_yresolution = (float) dblval; + td->td_yresolution = TIFFClampDoubleToFloat( dblval ); break; case TIFFTAG_PLANARCONFIG: v = (uint16) va_arg(ap, uint16_vap); @@ -327,10 +337,10 @@ _TIFFVSetField(TIFF* tif, uint32 tag, va_list ap) td->td_planarconfig = (uint16) v; break; case TIFFTAG_XPOSITION: - td->td_xposition = (float) va_arg(ap, double); + td->td_xposition = TIFFClampDoubleToFloat( va_arg(ap, double) ); break; case TIFFTAG_YPOSITION: - td->td_yposition = (float) va_arg(ap, double); + td->td_yposition = TIFFClampDoubleToFloat( va_arg(ap, double) ); break; case TIFFTAG_RESOLUTIONUNIT: v = (uint16) va_arg(ap, uint16_vap); @@ -676,7 +686,7 @@ _TIFFVSetField(TIFF* tif, uint32 tag, va_list ap) case TIFF_SRATIONAL: case TIFF_FLOAT: { - float v2 = (float)va_arg(ap, double); + float v2 = TIFFClampDoubleToFloat(va_arg(ap, double)); _TIFFmemcpy(val, &v2, tv_size); } break; @@ -854,6 +864,34 @@ _TIFFVGetField(TIFF* tif, uint32 tag, va_list ap) if( fip == NULL ) /* cannot happen since TIFFGetField() already checks it */ return 0; + if( tag == TIFFTAG_NUMBEROFINKS ) + { + int i; + for (i = 0; i < td->td_customValueCount; i++) { + uint16 val; + TIFFTagValue *tv = td->td_customValues + i; + if (tv->info->field_tag != tag) + continue; + if( tv->value == NULL ) + return 0; + val = *(uint16 *)tv->value; + /* Truncate to SamplesPerPixel, since the */ + /* setting code for INKNAMES assume that there are SamplesPerPixel */ + /* inknames. */ + /* Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2599 */ + if( val > td->td_samplesperpixel ) + { + TIFFWarningExt(tif->tif_clientdata,"_TIFFVGetField", + "Truncating NumberOfInks from %u to %u", + val, td->td_samplesperpixel); + val = td->td_samplesperpixel; + } + *va_arg(ap, uint16*) = val; + return 1; + } + return 0; + } + /* * We want to force the custom code to be used for custom * fields even if the tag happens to match a well known |