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app: add/update some comments. 

Keep multi-threading disable on the cage transform operation. It is now
fixed but is a lot much slower than when single-threaded, making it
painful to use on bigger images.
So let's reenable later if we can improve this. See bug 787663.
This commit is contained in:
Jehan 2017-12-06 23:30:54 +01:00
parent f727e885cd
commit f28cb1c511
1 changed files with 5 additions and 2 deletions
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7
app/operations/gimpoperationcagetransform.c
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@ -111,8 +111,8 @@ gimp_operation_cage_transform_class_init (GimpOperationCageTransformClass *klass
operation_class->get_cached_region = gimp_operation_cage_transform_get_cached_region;
operation_class->no_cache = FALSE;
operation_class->get_bounding_box = gimp_operation_cage_transform_get_bounding_box;
/* XXX Temporarily disable multi-threading on this operation until it
* is fixed. See bug 787663.
/* XXX Temporarily disable multi-threading on this operation because
* it is much faster when single-threaded. See bug 787663.
*/
operation_class->threaded = FALSE;
@ -383,6 +383,9 @@ gimp_operation_cage_transform_interpolate_source_coords_recurs (GimpOperationCag
GeglRectangle rect = { 0, 0, 1, 1 };
gint xmin, xmax, ymin, ymax;
/* Stop recursion if all 3 vertices of the triangle are outside the
* ROI (left/right or above/below).
*/
if (p1_d.x >= roi->x + roi->width &&
p2_d.x >= roi->x + roi->width &&
p3_d.x >= roi->x + roi->width) return;