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tweak clipping again

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This commit is contained in:
John Cupitt 2016-11-22 16:42:34 +00:00
parent 14dd8b32b1
commit 32d049a1df
1 changed files with 11 additions and 5 deletions
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16
libvips/foreign/tiff2vips.c
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@ -1730,9 +1730,15 @@ rtiff_stripwise_generate( VipsRegion *or,
strip.width = rtiff->out->Xsize; strip.width = rtiff->out->Xsize;
strip.height = rows_per_strip; strip.height = rows_per_strip;
vips_rect_intersectrect( &strip, &page, &hit ); /* Clip strip against page and image ... the final strip will
vips_rect_intersectrect( &hit, &image, &hit ); * be smaller.
vips_rect_intersectrect( &hit, r, &hit ); */
vips_rect_intersectrect( &strip, &image, &strip );
vips_rect_intersectrect( &strip, &page, &strip );
/* Now the bit that overlaps with the region we are filling.
*/
vips_rect_intersectrect( &strip, r, &hit );
g_assert( hit.height > 0 ); g_assert( hit.height > 0 );
@ -1748,8 +1754,8 @@ rtiff_stripwise_generate( VipsRegion *or,
* or if this strip is not aligned on a tile boundary. * or if this strip is not aligned on a tile boundary.
*/ */
if( rtiff->memcpy && if( rtiff->memcpy &&
hit.top % rows_per_strip == 0 && hit.top == strip.top &&
hit.height == rows_per_strip ) { hit.height == strip.height ) {
if( rtiff_strip_read_interleaved( rtiff, strip_no, if( rtiff_strip_read_interleaved( rtiff, strip_no,
VIPS_REGION_ADDR( or, 0, r->top + y ) ) ) { VIPS_REGION_ADDR( or, 0, r->top + y ) ) ) {
VIPS_GATE_STOP( VIPS_GATE_STOP(