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gimpoperationcagepreview: transform only pixel inside the cage

This commit is contained in:
Michael Muré 2010-08-14 23:53:23 +02:00
parent b7c2b26def
commit 02a14315f4
1 changed files with 28 additions and 26 deletions
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54
app/gegl/gimpoperationcagepreview.c
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@ -207,35 +207,37 @@ gimp_operation_cage_preview_process (GeglOperation *operation,
while(n_pixels--)
{
/* computing of the final position of the source pixel */
gdouble pos_x, pos_y;
pos_x = 0;
pos_y = 0;
for(i = 0; i < cvn; i++)
if (gimp_cage_config_point_inside(config, x, y))
{
pos_x += coef[i] * config->cage_vertices_d[i].x;
pos_y += coef[i] * config->cage_vertices_d[i].y;
/* computing of the final position of the source pixel */
gdouble pos_x, pos_y;
pos_x = 0;
pos_y = 0;
for(i = 0; i < cvn; i++)
{
pos_x += coef[i] * config->cage_vertices_d[i].x;
pos_y += coef[i] * config->cage_vertices_d[i].y;
}
for(i = 0; i < cvn; i++)
{
pos_x += coef[i + cvn] * config->scaling_factor[i] * config->normal_d[i].x;
pos_y += coef[i + cvn] * config->scaling_factor[i] * config->normal_d[i].y;
}
rect.x = (gint) rint(pos_x) - 1;
rect.y = (gint) rint(pos_y) - 1;
/* copy the source pixel in the out buffer */
gegl_buffer_set(out_buf,
&rect,
format_io,
source,
GEGL_AUTO_ROWSTRIDE);
}
for(i = 0; i < cvn; i++)
{
pos_x += coef[i + cvn] * config->scaling_factor[i] * config->normal_d[i].x;
pos_y += coef[i + cvn] * config->scaling_factor[i] * config->normal_d[i].y;
}
rect.x = (gint) rint(pos_x) - 1;
rect.y = (gint) rint(pos_y) - 1;
/* copy the source pixel in the out buffer */
gegl_buffer_set(out_buf,
&rect,
format_io,
source,
GEGL_AUTO_ROWSTRIDE);
source += 4;
coef += 2 * cvn;