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better rounding in tile calcs

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This commit is contained in:
John Cupitt 2021-03-20 12:54:32 +00:00
parent 7a900e0a4e
commit 76b7cddba1
1 changed files with 4 additions and 2 deletions
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6
libvips/foreign/jp2kload.c
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@ -592,8 +592,10 @@ vips_foreign_load_jp2k_generate( VipsRegion *out,
/* jp2k get smaller with the layer size.
*/
int tile_width = jp2k->info->tdx / jp2k->shrink;
int tile_height = jp2k->info->tdy / jp2k->shrink;
int tile_width = VIPS_ROUND_UINT(
(double) jp2k->info->tdx / jp2k->shrink );
int tile_height = VIPS_ROUND_UINT(
(double) jp2k->info->tdy / jp2k->shrink );
/* ... so tiles_across is always the same.
*/