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app: add a use_gegl case in gimp_drawable_transform_tiles_affine() 

which essentially implements the GEGL-based transform tool.
This commit is contained in:
Michael Natterer 2012-03-20 00:00:01 +01:00
parent 254ad23b28
commit 8a7ea1c25a
1 changed files with 57 additions and 17 deletions
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74
app/core/gimpdrawable-transform.c
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@ -35,6 +35,7 @@
#include "gegl/gimp-gegl-utils.h"
#include "gimp.h"
#include "gimp-apply-operation.h"
#include "gimp-transform-region.h"
#include "gimp-transform-resize.h"
#include "gimpchannel.h"
@ -81,7 +82,6 @@ gimp_drawable_transform_tiles_affine (GimpDrawable *drawable,
gint *new_offset_y,
GimpProgress *progress)
{
PixelRegion destPR;
TileManager *new_tiles;
GimpMatrix3 m;
GimpMatrix3 inv;
@ -131,23 +131,63 @@ gimp_drawable_transform_tiles_affine (GimpDrawable *drawable,
/* Get the new temporary buffer for the transformed result */
new_tiles = tile_manager_new (x2 - x1, y2 - y1,
tile_manager_bpp (orig_tiles));
pixel_region_init (&destPR, new_tiles,
0, 0, x2 - x1, y2 - y1, TRUE);
gimp_transform_region (GIMP_PICKABLE (drawable),
context,
orig_tiles,
orig_offset_x,
orig_offset_y,
&destPR,
x1,
y1,
x2,
y2,
&inv,
interpolation_type,
recursion_level,
progress);
if (gimp_use_gegl (gimp_item_get_image (GIMP_ITEM (drawable))->gimp))
{
GeglBuffer *src_buffer;
GeglBuffer *dest_buffer;
GeglNode *affine;
gchar *matrix_string;
GimpMatrix3 gegl_matrix;
src_buffer = gimp_tile_manager_create_buffer (orig_tiles, orig_format,
FALSE);
dest_buffer = gimp_tile_manager_create_buffer (new_tiles, orig_format,
TRUE);
gimp_matrix3_identity (&gegl_matrix);
gimp_matrix3_translate (&gegl_matrix, u1, v1);
gimp_matrix3_mult (&inv, &gegl_matrix);
gimp_matrix3_translate (&gegl_matrix, -x1, -y1);
matrix_string = gegl_matrix3_to_string ((GeglMatrix3 *) &gegl_matrix);
affine = gegl_node_new_child (NULL,
"operation", "gegl:transform",
"transform", matrix_string,
NULL);
g_free (matrix_string);
gimp_apply_operation (src_buffer, progress, NULL,
affine, TRUE,
dest_buffer, NULL);
g_object_unref (affine);
g_object_unref (src_buffer);
g_object_unref (dest_buffer);
}
else
{
PixelRegion destPR;
pixel_region_init (&destPR, new_tiles,
0, 0, x2 - x1, y2 - y1, TRUE);
gimp_transform_region (GIMP_PICKABLE (drawable),
context,
orig_tiles,
orig_offset_x,
orig_offset_y,
&destPR,
x1,
y1,
x2,
y2,
&inv,
interpolation_type,
recursion_level,
progress);
}
*new_offset_x = x1;
*new_offset_y = y1;