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app: add a gegl:copy-buffer to GimpApplicator 

which allows to get a buffer copy of the result of the applied
operation without the overhead of running the entire graph again just
for this purpose.
This commit is contained in:
Michael Natterer 2014-06-01 18:35:18 +02:00
parent 9125f876df
commit 987d9e2800
3 changed files with 23 additions and 27 deletions
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47
app/gegl/gimpapplicator.c
View File

@ -150,8 +150,16 @@ gimp_applicator_new (GeglNode *parent,
gegl_node_connect_to (applicator->aux_node, "output",
applicator->apply_offset_node, "input");
gegl_node_connect_to (applicator->apply_offset_node, "output",
applicator->mode_node, "aux");
applicator->dup_apply_buffer_node =
gegl_node_new_child (applicator->node,
"operation", "gegl:copy-buffer",
NULL);
gegl_node_connect_to (applicator->apply_offset_node, "output",
applicator->dup_apply_buffer_node, "input");
gegl_node_connect_to (applicator->dup_apply_buffer_node, "output",
applicator->mode_node, "aux");
applicator->mask_node =
gegl_node_new_child (applicator->node,
@ -423,37 +431,22 @@ gimp_applicator_dup_apply_buffer (GimpApplicator *applicator,
const GeglRectangle *rect)
{
GeglBuffer *buffer;
GeglNode *offset;
GeglNode *dest;
GeglBuffer *shifted;
buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0, rect->width, rect->height),
babl_format ("RGBA float"));
offset = gegl_node_new_child (applicator->node,
"operation", "gegl:translate",
"x",
(gdouble) - applicator->apply_offset_x - rect->x,
"y",
(gdouble) - applicator->apply_offset_y - rect->y,
NULL);
shifted = g_object_new (GEGL_TYPE_BUFFER,
"source", buffer,
"shift-x", -rect->x,
"shift-y", -rect->y,
NULL);
dest = gegl_node_new_child (applicator->node,
"operation", "gegl:write-buffer",
"buffer", buffer,
NULL);
gegl_node_set (applicator->dup_apply_buffer_node,
"buffer", shifted,
NULL);
gegl_node_link_many (applicator->apply_offset_node,
offset,
dest,
NULL);
gegl_node_blit (dest, 1.0, GEGL_RECTANGLE (0, 0, rect->width, rect->height),
NULL, NULL, 0, GEGL_BLIT_DEFAULT);
gegl_node_disconnect (offset, "input");
gegl_node_remove_child (applicator->node, offset);
gegl_node_remove_child (applicator->node, dest);
g_object_unref (shifted);
return buffer;
}

2
app/gegl/gimpapplicator.h
View File

@ -48,6 +48,8 @@ struct _GimpApplicator
gint apply_offset_y;
GeglNode *apply_offset_node;
GeglNode *dup_apply_buffer_node;
gdouble opacity;
GimpLayerModeEffects paint_mode;
gboolean linear;

1
app/sanity.c
View File

@ -485,6 +485,7 @@ sanity_check_gegl_ops (void)
"gegl:color-temperature",
"gegl:color-to-alpha",
"gegl:convolution-matrix",
"gegl:copy-buffer",
"gegl:crop",
"gegl:cubism",
"gegl:deinterlace",