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app: add gimp_gegl_buffer_dup()

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... as a drop-in replacement for gegl_buffer_dup(), which COWs all
tiles of the source buffer, including ones that aren't fully
included within buffer's extent.

(cherry picked from commit 5798cefe1b)
This commit is contained in:
Ell
2019-07-30 20:19:21 +03:00
parent 6cc671074a
commit c0e04c3b5f
2 changed files with 52 additions and 0 deletions
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50
app/gegl/gimp-gegl-utils.c
View File

@ -29,6 +29,7 @@
#include "core/gimpprogress.h"
#include "gimp-gegl-loops.h"
#include "gimp-gegl-utils.h"
@ -230,3 +231,52 @@ gimp_gegl_param_spec_has_key (GParamSpec *pspec,
return FALSE;
}
GeglBuffer *
gimp_gegl_buffer_dup (GeglBuffer *buffer)
{
GeglBuffer *new_buffer;
const GeglRectangle *extent;
const GeglRectangle *abyss;
GeglRectangle rect;
gint shift_x;
gint shift_y;
gint tile_width;
gint tile_height;
g_return_val_if_fail (GEGL_IS_BUFFER (buffer), NULL);
extent = gegl_buffer_get_extent (buffer);
abyss = gegl_buffer_get_abyss (buffer);
g_object_get (buffer,
"shift-x", &shift_x,
"shift-y", &shift_y,
"tile-width", &tile_width,
"tile-height", &tile_height,
NULL);
new_buffer = g_object_new (GEGL_TYPE_BUFFER,
"format", gegl_buffer_get_format (buffer),
"x", extent->x,
"y", extent->y,
"width", extent->width,
"height", extent->height,
"abyss-x", abyss->x,
"abyss-y", abyss->y,
"abyss-width", abyss->width,
"abyss-height", abyss->height,
"shift-x", shift_x,
"shift-y", shift_y,
"tile-width", tile_width,
"tile-height", tile_height,
NULL);
gegl_rectangle_align_to_buffer (&rect, extent, buffer,
GEGL_RECTANGLE_ALIGNMENT_SUPERSET);
gimp_gegl_buffer_copy (buffer, &rect, GEGL_ABYSS_NONE,
new_buffer, &rect);
return new_buffer;
}

2
app/gegl/gimp-gegl-utils.h
View File

@ -46,5 +46,7 @@ gboolean gimp_gegl_param_spec_has_key (GParamSpec *pspec
const gchar *key,
const gchar *value);
GeglBuffer * gimp_gegl_buffer_dup (GeglBuffer *buffer);
#endif /* __GIMP_GEGL_UTILS_H__ */