eUgEntOptIc44/gimp
1
1
Fork 0
mirror of https://gitlab.gnome.org/GNOME/gimp.git synced 2025-10-06 01:12:40 +02:00
Code Issues Releases Activity

app: in GimpChunkIterator, avoid preparing rect before merging

Browse Source 
In GimpChunkIterator, avoid preparing the current rect before
merging it back to the iterator's region, to save some work.

Additionally, strengthen the iterator's invariants and simplify
code.
This commit is contained in:
Ell
2019-03-31 04:59:23 -04:00
parent 50aaeef6a0
commit c95502266a
1 changed files with 25 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

51
app/core/gimpchunkiterator.c
View File

@@ -113,39 +113,34 @@ gimp_chunk_iterator_set_current_rect (GimpChunkIterator *iter,
cairo_region_subtract_rectangle (iter->current_region,
(const cairo_rectangle_int_t *) rect);
iter->current_rect = *rect;
iter->current_rect = *rect;
iter->current_x = rect->x;
iter->current_y = rect->y;
iter->current_x = rect->x;
iter->current_y = rect->y;
iter->current_height = 0;
}
static void
gimp_chunk_iterator_merge_current_rect (GimpChunkIterator *iter)
{
GeglRectangle rect;
gint current_height = 0;
if (gegl_rectangle_is_empty (&iter->current_rect))
return;
/* merge the remainder of the current row */
if (iter->current_x != iter->current_rect.x)
{
current_height = iter->current_height;
rect.x = iter->current_x;
rect.y = iter->current_y;
rect.width = iter->current_rect.x + iter->current_rect.width -
iter->current_x;
rect.height = iter->current_height;
rect.x = iter->current_x;
rect.y = iter->current_y;
rect.width = iter->current_rect.x + iter->current_rect.width -
iter->current_x;
rect.height = current_height;
cairo_region_union_rectangle (iter->current_region,
(const cairo_rectangle_int_t *) &rect);
}
cairo_region_union_rectangle (iter->current_region,
(const cairo_rectangle_int_t *) &rect);
/* merge the remainder of the current rect */
rect.x = iter->current_rect.x;
rect.y = iter->current_y + current_height;
rect.y = iter->current_y + iter->current_height;
rect.width = iter->current_rect.width;
rect.height = iter->current_rect.y + iter->current_rect.height - rect.y;
@@ -160,6 +155,7 @@ gimp_chunk_iterator_merge_current_rect (GimpChunkIterator *iter)
iter->current_x = 0;
iter->current_y = 0;
iter->current_height = 0;
}
static void
@@ -174,18 +170,21 @@ gimp_chunk_iterator_merge (GimpChunkIterator *iter)
cairo_region_union (iter->region, iter->priority_region);
g_clear_pointer (&iter->priority_region, cairo_region_destroy);
iter->current_region = iter->region;
}
}
static gboolean
gimp_chunk_iterator_prepare (GimpChunkIterator *iter)
{
if (iter->current_x >= iter->current_rect.x + iter->current_rect.width)
if (iter->current_x == iter->current_rect.x + iter->current_rect.width)
{
iter->current_x = iter->current_rect.x;
iter->current_y += iter->current_height;
iter->current_x = iter->current_rect.x;
iter->current_y += iter->current_height;
iter->current_height = 0;
if (iter->current_y >= iter->current_rect.y + iter->current_rect.height)
if (iter->current_y == iter->current_rect.y + iter->current_rect.height)
{
GeglRectangle rect;
@@ -222,6 +221,7 @@ gimp_chunk_iterator_prepare (GimpChunkIterator *iter)
iter->current_x = 0;
iter->current_y = 0;
iter->current_height = 0;
return FALSE;
}
@@ -358,7 +358,8 @@ gimp_chunk_iterator_new (cairo_region_t *region)
iter = g_slice_new0 (GimpChunkIterator);
iter->region = region;
iter->region = region;
iter->current_region = region;
g_object_get (gegl_config (),
"tile-width", &iter->tile_rect.width,
@@ -396,8 +397,7 @@ gimp_chunk_iterator_set_priority_rect (GimpChunkIterator *iter,
{
iter->priority_rect = *rect;
if (gimp_chunk_iterator_prepare (iter))
gimp_chunk_iterator_merge (iter);
gimp_chunk_iterator_merge (iter);
}
}
@@ -542,8 +542,7 @@ gimp_chunk_iterator_stop (GimpChunkIterator *iter,
}
else
{
if (gimp_chunk_iterator_prepare (iter))
gimp_chunk_iterator_merge (iter);
gimp_chunk_iterator_merge (iter);
result = iter->region;
}