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app: in gimp_drawable_apply_buffer(), work in chunks 

In gimp_drawable_real_apply_buffer(), use GimpChunkIterator to blit
the applicator's output to the drawable's buffer in chunks, to
minimize the space used for intermediate results.
This commit is contained in:
Ell 2019-03-27 12:29:25 -04:00
parent e904b71242
commit 8f845d3a51
1 changed files with 13 additions and 1 deletions
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14
app/core/gimpdrawable-combine.c
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@ -17,6 +17,7 @@
#include "config.h"
#include <cairo.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <gegl.h>
@ -28,6 +29,7 @@
#include "gimp.h"
#include "gimpchannel.h"
#include "gimpchunkiterator.h"
#include "gimpdrawable-combine.h"
#include "gimpimage.h"
@ -51,6 +53,7 @@ gimp_drawable_real_apply_buffer (GimpDrawable *drawable,
GimpImage *image = gimp_item_get_image (item);
GimpChannel *mask = gimp_image_get_mask (image);
GimpApplicator *applicator;
GimpChunkIterator *iter;
gint x, y, width, height;
gint offset_x, offset_y;
@ -126,7 +129,16 @@ gimp_drawable_real_apply_buffer (GimpDrawable *drawable,
gimp_applicator_set_affect (applicator,
gimp_drawable_get_active_mask (drawable));
gimp_applicator_blit (applicator, GEGL_RECTANGLE (x, y, width, height));
iter = gimp_chunk_iterator_new (cairo_region_create_rectangle (
&(cairo_rectangle_int_t) {x, y, width, height}));
while (gimp_chunk_iterator_next (iter))
{
GeglRectangle rect;
while (gimp_chunk_iterator_get_rect (iter, &rect))
gimp_applicator_blit (applicator, &rect);
}
g_object_unref (applicator);
}