diff options
Diffstat (limited to 'libtiff/tif_dir.c')
| -rw-r--r-- | libtiff/tif_dir.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/libtiff/tif_dir.c b/libtiff/tif_dir.c index 1e0a76c3..e59f1633 100644 --- a/libtiff/tif_dir.c +++ b/libtiff/tif_dir.c @@ -29,6 +29,7 @@ * (and also some miscellaneous stuff) */ #include "tiffiop.h" +#include <float.h> /*--: for Rational2Double */ /* * These are used in the backwards compatibility code... @@ -559,6 +560,10 @@ _TIFFVSetField(TIFF* tif, uint32 tag, va_list ap) * Set custom value ... save a copy of the custom tag value. */ tv_size = _TIFFDataSize(fip->field_type); + /*--: Rational2Double: For Rationals evaluate "set_field_type" to determine internal storage size. */ + if (fip->field_type == TIFF_RATIONAL || fip->field_type == TIFF_SRATIONAL) { + tv_size = _TIFFSetGetFieldSize(fip->set_field_type); + } if (tv_size == 0) { status = 0; TIFFErrorExt(tif->tif_clientdata, module, @@ -638,6 +643,7 @@ _TIFFVSetField(TIFF* tif, uint32 tag, va_list ap) || fip->field_writecount == TIFF_VARIABLE2 || fip->field_writecount == TIFF_SPP || tv->count > 1) { + /*--: Rational2Double: For Rationals tv_size is set above to 4 or 8 according to fip->set_field_type! */ _TIFFmemcpy(tv->value, va_arg(ap, void *), tv->count * tv_size); } else { @@ -698,6 +704,22 @@ _TIFFVSetField(TIFF* tif, uint32 tag, va_list ap) break; case TIFF_RATIONAL: case TIFF_SRATIONAL: + /*-- Rational2Double: For Rationals tv_size is set above to 4 or 8 according to fip->set_field_type! */ + { + if (tv_size == 8) { + double v2 = va_arg(ap, double); + _TIFFmemcpy(val, &v2, tv_size); + } else { + /*-- default schould be tv_size == 4 */ + float v3 = (float)va_arg(ap, double); + _TIFFmemcpy(val, &v3, tv_size); + /*-- ToDo: After Testing, this should be removed and tv_size==4 should be set as default. */ + if (tv_size != 4) { + TIFFErrorExt(0,"TIFFLib: _TIFFVSetField()", "Rational2Double: .set_field_type in not 4 but %d", tv_size); + } + } + } + break; case TIFF_FLOAT: { float v2 = _TIFFClampDoubleToFloat(va_arg(ap, double)); @@ -1200,6 +1222,23 @@ _TIFFVGetField(TIFF* tif, uint32 tag, va_list ap) break; case TIFF_RATIONAL: case TIFF_SRATIONAL: + { + /*-- Rational2Double: For Rationals evaluate "set_field_type" to determine internal storage size and return value size. */ + int tv_size = _TIFFSetGetFieldSize(fip->set_field_type); + if (tv_size == 8) { + *va_arg(ap, double*) = *(double *)val; + ret_val = 1; + } else { + /*-- default schould be tv_size == 4 */ + *va_arg(ap, float*) = *(float *)val; + ret_val = 1; + /*-- ToDo: After Testing, this should be removed and tv_size==4 should be set as default. */ + if (tv_size != 4) { + TIFFErrorExt(0,"TIFFLib: _TIFFVGetField()", "Rational2Double: .set_field_type in not 4 but %d", tv_size); + } + } + } + break; case TIFF_FLOAT: *va_arg(ap, float*) = *(float *)val; |