diff options
Diffstat (limited to 'third_party/libtiff/tif_dir.c')
| -rw-r--r-- | third_party/libtiff/tif_dir.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/third_party/libtiff/tif_dir.c b/third_party/libtiff/tif_dir.c index 81b849374b..72148411fd 100644 --- a/third_party/libtiff/tif_dir.c +++ b/third_party/libtiff/tif_dir.c @@ -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); |