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tiny code format changes

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This commit is contained in:
John Cupitt 2021-09-07 13:54:59 +01:00
parent e16cb5bfe5
commit f2dd4471eb
1 changed files with 13 additions and 10 deletions
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23
libvips/foreign/quantise.c
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@ -113,8 +113,9 @@ vips__quantise_image( VipsImage *in,
VipsImage *index;
VipsImage *palette;
const liq_palette *lp;
int i;
gboolean added_alpha = FALSE;
gint64 i;
VipsPel * restrict p;
gboolean added_alpha;
quantise = vips__quantise_new( in, index_out, palette_out,
colours, Q, dither, effort );
@ -132,6 +133,7 @@ vips__quantise_image( VipsImage *in,
/* Add alpha channel if missing.
*/
added_alpha = FALSE;
if( !vips_image_hasalpha( in ) ) {
if( vips_bandjoin_const1( in, &quantise->t[1], 255, NULL ) ) {
vips__quantise_free( quantise );
@ -149,11 +151,11 @@ vips__quantise_image( VipsImage *in,
/* Threshold alpha channel.
*/
if( threshold_alpha && !added_alpha ) {
VipsPel * restrict p = VIPS_IMAGE_ADDR( in, 0, 0 );
if( threshold_alpha &&
!added_alpha ) {
const guint64 n_pels = VIPS_IMAGE_N_PELS( in );
guint64 i;
p = VIPS_IMAGE_ADDR( in, 0, 0 );
for( i = 0; i < n_pels; i++ ) {
p[3] = p[3] > 128 ? 255 : 0;
p += 4;
@ -207,13 +209,14 @@ vips__quantise_image( VipsImage *in,
return( -1 );
}
p = VIPS_IMAGE_ADDR( palette, 0, 0 );
for( i = 0; i < lp->count; i++ ) {
unsigned char *p = VIPS_IMAGE_ADDR( palette, i, 0 );
p[0] = lp->entries[i].r;
p[1] = lp->entries[i].g;
p[2] = lp->entries[i].b;
p[3] = lp->entries[i].a;
p += 4;
}
*index_out = index;
@ -234,10 +237,10 @@ vips__quantise_image( VipsImage *in,
int colours, int Q, double dither, int effort,
gboolean threshold_alpha )
{
vips_error( "vips__quantise_image",
"%s", _( "libvips not built with quantisation support" ) );
vips_error( "vips__quantise_image",
"%s", _( "libvips not built with quantisation support" ) );
return( -1 );
return( -1 );
}
#endif /*HAVE_IMAGEQUANT*/