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Avoid using unneeded variables

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This commit is contained in:
Kleis Auke Wolthuizen 2020-06-18 14:40:29 +02:00
parent 597def2f77
commit f6b9f382ec
2 changed files with 14 additions and 26 deletions
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32
libvips/convolution/convi.c
View File

@ -147,9 +147,6 @@ typedef struct {
typedef struct {
VipsConvolution parent_instance;
/* An int version of M.
*/
VipsImage *iM;
int n_point; /* w * h for our matrix */
/* We make a smaller version of the mask with the zeros squeezed out.
@ -853,7 +850,6 @@ vips__image_intize( VipsImage *in, VipsImage **out )
static int
vips_convi_intize( VipsConvi *convi, VipsImage *M )
{
int n_point;
VipsImage *t;
double scale;
double *scaled;
@ -862,21 +858,17 @@ vips_convi_intize( VipsConvi *convi, VipsImage *M )
int shift;
int i;
n_point = M->Xsize * M->Ysize;
g_assert( convi->n_point == n_point );
if( vips_check_matrix( "vips2imask", M, &t ) )
return( -1 );
/* Bake the scale into the mask to make a double version.
*/
scale = vips_image_get_scale( t );
if( !(scaled = VIPS_ARRAY( convi, n_point, double )) ) {
if( !(scaled = VIPS_ARRAY( convi, convi->n_point, double )) ) {
g_object_unref( t );
return( -1 );
}
for( i = 0; i < n_point; i++ )
for( i = 0; i < convi->n_point; i++ )
scaled[i] = VIPS_MATRIX( t, 0, 0 )[i] / scale;
g_object_unref( t );
@ -896,7 +888,7 @@ vips_convi_intize( VipsConvi *convi, VipsImage *M )
mx = scaled[0];
mn = scaled[0];
for( i = 1; i < n_point; i++ ) {
for( i = 1; i < convi->n_point; i++ ) {
if( scaled[i] > mx )
mx = scaled[i];
if( scaled[i] < mn )
@ -915,7 +907,7 @@ vips_convi_intize( VipsConvi *convi, VipsImage *M )
/* We need to sum n_points, so we have to shift right before adding a
* new value to make sure we have enough range.
*/
convi->sexp = ceil( log2( n_point ) );
convi->sexp = ceil( log2( convi->n_point ) );
if( convi->sexp > 10 ) {
g_info( "vips_convi_intize: mask too large" );
return( -1 );
@ -925,9 +917,9 @@ vips_convi_intize( VipsConvi *convi, VipsImage *M )
*/
convi->exp = 7 - shift - convi->sexp;
if( !(convi->mant = VIPS_ARRAY( convi, n_point, int )) )
if( !(convi->mant = VIPS_ARRAY( convi, convi->n_point, int )) )
return( -1 );
for( i = 0; i < n_point; i++ ) {
for( i = 0; i < convi->n_point; i++ ) {
/* 128 since this is signed.
*/
convi->mant[i] = VIPS_RINT( 128 * scaled[i] * pow(2, -shift) );
@ -965,7 +957,7 @@ vips_convi_intize( VipsConvi *convi, VipsImage *M )
true_sum = 0.0;
int_sum = 0;
for( i = 0; i < n_point; i++ ) {
for( i = 0; i < convi->n_point; i++ ) {
int value;
true_sum += 128 * scaled[i];
@ -1001,7 +993,6 @@ vips_convi_build( VipsObject *object )
VipsImage *in;
VipsImage *M;
int n_point;
VipsGenerateFn generate;
double *coeff;
int i;
@ -1047,19 +1038,18 @@ vips_convi_build( VipsObject *object )
*/
if( vips__image_intize( M, &t[1] ) )
return( -1 );
convi->iM = M = t[1];
M = t[1];
coeff = VIPS_MATRIX( M, 0, 0 );
n_point = M->Xsize * M->Ysize;
if( !(convi->coeff = VIPS_ARRAY( object, n_point, int )) ||
if( !(convi->coeff = VIPS_ARRAY( object, convi->n_point, int )) ||
!(convi->coeff_pos =
VIPS_ARRAY( object, n_point, int )) )
VIPS_ARRAY( object, convi->n_point, int )) )
return( -1 );
/* Squeeze out zero mask elements.
*/
convi->nnz = 0;
for( i = 0; i < n_point; i++ )
for( i = 0; i < convi->n_point; i++ )
if( coeff[i] ) {
convi->coeff[convi->nnz] = coeff[i];
convi->coeff_pos[convi->nnz] = i;

8
libvips/resample/quadratic.c
View File

@ -241,7 +241,6 @@ vips_quadratic_build( VipsObject *object )
VipsResample *resample = VIPS_RESAMPLE( object );
VipsQuadratic *quadratic = (VipsQuadratic *) object;
VipsInterpolate *interpolate;
int window_size;
int window_offset;
VipsImage *in;
@ -294,12 +293,11 @@ vips_quadratic_build( VipsObject *object )
return( -1 );
}
if( !vips_object_argument_isset( object, "interpolator" ) )
if( !quadratic->interpolate )
quadratic->interpolate = vips_interpolate_new( "bilinear" );
interpolate = quadratic->interpolate;
window_size = vips_interpolate_get_window_size( interpolate );
window_offset = vips_interpolate_get_window_offset( interpolate );
window_size = vips_interpolate_get_window_size( quadratic->interpolate );
window_offset = vips_interpolate_get_window_offset( quadratic->interpolate );
/* Enlarge the input image.
*/