Mercurial > hg > minc-tools
changeset 1011:2fc28a9cdda7
*** empty log message ***
| author | david <david> |
|---|---|
| date | Wed, 21 Aug 1996 13:20:03 +0000 |
| parents | 7945e99238cd |
| children | 66c46ba73f2d |
| files | volume_io/Volumes/get_hyperslab.c |
| diffstat | 1 files changed, 70 insertions(+), 21 deletions(-) [+] |
line wrap: on
line diff
--- a/volume_io/Volumes/get_hyperslab.c +++ b/volume_io/Volumes/get_hyperslab.c @@ -15,7 +15,7 @@ #include <internal_volume_io.h> #ifndef lint -static char rcsid[] = "$Header: /private-cvsroot/minc/volume_io/Volumes/get_hyperslab.c,v 1.2 1996-05-17 19:36:25 david Exp $"; +static char rcsid[] = "$Header: /private-cvsroot/minc/volume_io/Volumes/get_hyperslab.c,v 1.3 1996-08-21 13:20:03 david Exp $"; #endif public void convert_voxels_to_values( @@ -198,6 +198,41 @@ } } +private Real *unsigned_byte_to_real = NULL; +private Real *signed_byte_to_real = NULL; +private Real *unsigned_short_to_real = NULL; +private Real *signed_short_to_real = NULL; + +private void check_real_conversion_lookup( + Data_types data_type ) +{ + Real min_value, max_value, **ptr; + long i, long_min, long_max; + + switch( data_type ) + { + case UNSIGNED_BYTE: ptr = &unsigned_byte_to_real; break; + case SIGNED_BYTE: ptr = &signed_byte_to_real; break; + case UNSIGNED_SHORT: ptr = &unsigned_short_to_real; break; + case SIGNED_SHORT: ptr = &signed_short_to_real; break; + default: return; + } + + if( *ptr != NULL ) + return; + + get_type_range( data_type, &min_value, &max_value ); + long_min = (long) min_value; + long_max = (long) max_value; + + ALLOC( *ptr, long_max - long_min + 1 ); + + (*ptr) -= long_min; + + for_inclusive( i, long_min, long_max ) + (*ptr)[i] = (Real) i; +} + public void get_voxel_values_5d( Data_types data_type, void *void_ptr, @@ -232,6 +267,8 @@ step2 -= n3 * step3; step3 -= n4 * step4; + check_real_conversion_lookup( data_type ); + switch( data_type ) { case UNSIGNED_BYTE: @@ -246,7 +283,8 @@ { for_less( i4, 0, n4 ) { - *values = (Real) *unsigned_byte_ptr; + *values = unsigned_byte_to_real[ + (long) *unsigned_byte_ptr]; ++values; unsigned_byte_ptr += step4; } @@ -272,7 +310,8 @@ { for_less( i4, 0, n4 ) { - *values = (Real) *signed_byte_ptr; + *values = signed_byte_to_real[ + (long) *signed_byte_ptr]; ++values; signed_byte_ptr += step4; } @@ -298,7 +337,8 @@ { for_less( i4, 0, n4 ) { - *values = (Real) *unsigned_short_ptr; + *values = unsigned_short_to_real[ + (long) *unsigned_short_ptr]; ++values; unsigned_short_ptr += step4; } @@ -324,7 +364,8 @@ { for_less( i4, 0, n4 ) { - *values = (Real) *signed_short_ptr; + *values = signed_short_to_real[ + (long) *signed_short_ptr]; ++values; signed_short_ptr += step4; } @@ -474,6 +515,7 @@ step0 -= n1 * step1; step1 -= n2 * step2; step2 -= n3 * step3; + check_real_conversion_lookup( data_type ); switch( data_type ) { @@ -487,7 +529,8 @@ { for_less( i3, 0, n3 ) { - *values = (Real) *unsigned_byte_ptr; + *values = unsigned_byte_to_real[ + (long) *unsigned_byte_ptr]; ++values; unsigned_byte_ptr += step3; } @@ -509,7 +552,7 @@ { for_less( i3, 0, n3 ) { - *values = (Real) *signed_byte_ptr; + *values = signed_byte_to_real[(long) *signed_byte_ptr]; ++values; signed_byte_ptr += step3; } @@ -531,7 +574,8 @@ { for_less( i3, 0, n3 ) { - *values = (Real) *unsigned_short_ptr; + *values = unsigned_short_to_real[ + (long) *unsigned_short_ptr]; ++values; unsigned_short_ptr += step3; } @@ -553,7 +597,8 @@ { for_less( i3, 0, n3 ) { - *values = (Real) *signed_short_ptr; + *values = signed_short_to_real[ + (long) *signed_short_ptr]; ++values; signed_short_ptr += step3; } @@ -682,6 +727,7 @@ step2 = steps[2]; step0 -= n1 * step1; step1 -= n2 * step2; + check_real_conversion_lookup( data_type ); switch( data_type ) { @@ -693,7 +739,7 @@ { for_less( i2, 0, n2 ) { - *values = (Real) *unsigned_byte_ptr; + *values = unsigned_byte_to_real[(long) *unsigned_byte_ptr]; ++values; unsigned_byte_ptr += step2; } @@ -711,7 +757,7 @@ { for_less( i2, 0, n2 ) { - *values = (Real) *signed_byte_ptr; + *values = signed_byte_to_real[(long) *signed_byte_ptr]; ++values; signed_byte_ptr += step2; } @@ -729,7 +775,7 @@ { for_less( i2, 0, n2 ) { - *values = (Real) *unsigned_short_ptr; + *values = unsigned_short_to_real[(long) *unsigned_short_ptr]; ++values; unsigned_short_ptr += step2; } @@ -747,7 +793,7 @@ { for_less( i2, 0, n2 ) { - *values = (Real) *signed_short_ptr; + *values = signed_short_to_real[(long) *signed_short_ptr]; ++values; signed_short_ptr += step2; } @@ -855,6 +901,7 @@ step0 = steps[0]; step1 = steps[1]; step0 -= n1 * step1; + check_real_conversion_lookup( data_type ); switch( data_type ) { @@ -864,7 +911,7 @@ { for_less( i1, 0, n1 ) { - *values = (Real) *unsigned_byte_ptr; + *values = unsigned_byte_to_real[(long) *unsigned_byte_ptr]; ++values; unsigned_byte_ptr += step1; } @@ -878,7 +925,7 @@ { for_less( i1, 0, n1 ) { - *values = (Real) *signed_byte_ptr; + *values = signed_byte_to_real[(long) *signed_byte_ptr]; ++values; signed_byte_ptr += step1; } @@ -892,7 +939,7 @@ { for_less( i1, 0, n1 ) { - *values = (Real) *unsigned_short_ptr; + *values = unsigned_short_to_real[(long) *unsigned_short_ptr]; ++values; unsigned_short_ptr += step1; } @@ -906,7 +953,7 @@ { for_less( i1, 0, n1 ) { - *values = (Real) *signed_short_ptr; + *values = signed_short_to_real[(long) *signed_short_ptr]; ++values; signed_short_ptr += step1; } @@ -989,13 +1036,15 @@ float *float_ptr; double *double_ptr; + check_real_conversion_lookup( data_type ); + switch( data_type ) { case UNSIGNED_BYTE: unsigned_byte_ptr = void_ptr; for_less( i0, 0, n0 ) { - *values = (Real) *unsigned_byte_ptr; + *values = unsigned_byte_to_real[(long) *unsigned_byte_ptr]; ++values; unsigned_byte_ptr += step0; } @@ -1005,7 +1054,7 @@ signed_byte_ptr = void_ptr; for_less( i0, 0, n0 ) { - *values = (Real) *signed_byte_ptr; + *values = signed_byte_to_real[(long) *signed_byte_ptr]; ++values; signed_byte_ptr += step0; } @@ -1015,7 +1064,7 @@ unsigned_short_ptr = void_ptr; for_less( i0, 0, n0 ) { - *values = (Real) *unsigned_short_ptr; + *values = unsigned_short_to_real[(long) *unsigned_short_ptr]; ++values; unsigned_short_ptr += step0; } @@ -1025,7 +1074,7 @@ signed_short_ptr = void_ptr; for_less( i0, 0, n0 ) { - *values = (Real) *signed_short_ptr; + *values = signed_short_to_real[(long) *signed_short_ptr]; ++values; signed_short_ptr += step0; }