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spngload warns about trucated files

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it used to silently work
This commit is contained in:
John Cupitt 2020-07-14 17:56:36 +01:00
parent 740be29586
commit f7e8db599d
1 changed files with 7 additions and 2 deletions
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9
libvips/foreign/spngload.c
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@ -203,8 +203,10 @@ vips_foreign_load_png_set_header( VipsForeignLoadPng *png, VipsImage *image )
if( !spng_get_phys( png->ctx, &phys ) ) {
/* unit 1 means pixels per metre, otherwise unspecified.
*/
xres = phys.units == 1 ? phys.ppu_x / 1000.0 : phys.ppu_x;
yres = phys.units == 1 ? phys.ppu_y / 1000.0 : phys.ppu_y;
xres = phys.unit_specifier == 1 ?
phys.ppu_x / 1000.0 : phys.ppu_x;
yres = phys.unit_specifier == 1 ?
phys.ppu_y / 1000.0 : phys.ppu_y;
}
vips_image_init_fields( image,
@ -468,6 +470,9 @@ vips_foreign_load_png_generate( VipsRegion *or,
printf( " error %s\n", spng_strerror( error ) );
#endif /*DEBUG*/
g_warning( "%s: %s",
class->nickname, spng_strerror( error ) );
/* And bail if fail is on.
*/
if( load->fail ) {