int main(int argc, char *argv[])
{
GeglRectangle expected_infinite_plane = gegl_rectangle_infinite_plane ();
GeglRectangle infinite_plane = { INFINITE_PLANE };
int result = SUCCESS;
int i = 0;
/* Make sure our representation of an infinite plane GeglRectangle
* is correct
*/
if (! gegl_rectangle_equal (&infinite_plane, &expected_infinite_plane))
{
result = FAILURE;
g_printerr("This test case and GEGL does not represent an infinite plane\n"
"GeglRectangle in the same way, update this test case. Aborting.\n");
goto abort;
}
for (i = 0; i < G_N_ELEMENTS (tests); i++)
{
GeglRectangle result_rect;
gboolean return_value;
/* gegl_rectangle_bounding_box() */
gegl_rectangle_bounding_box (&result_rect,
&tests[i].rect1,
&tests[i].rect2);
if (! gegl_rectangle_equal (&result_rect, &tests[i].bounding_box_result))
{
result = FAILURE;
g_printerr("The gegl_rectangle_bounding_box() test #%d failed. Aborting.\n", i + 1);
goto abort;
}
/* gegl_rectangle_intersect() */
return_value = gegl_rectangle_intersect (&result_rect,
&tests[i].rect1,
&tests[i].rect2);
if (! gegl_rectangle_equal (&result_rect, &tests[i].intersect_result) ||
return_value != tests[i].intersect_return_value)
{
result = FAILURE;
g_printerr("The gegl_rectangle_intersect() test #%d failed. Aborting.\n", i + 1);
goto abort;
}
/* gegl_rectangle_contains() */
return_value = gegl_rectangle_contains (&tests[i].rect1,
&tests[i].rect2);
if (return_value != tests[i].contains_return_value)
{
result = FAILURE;
g_printerr("The gegl_rectangle_contains() test #%d failed. Aborting.\n", i + 1);
goto abort;
}
}
abort:
return result;
}
gboolean
gegl_can_do_inplace_processing (GeglOperation *operation,
GeglBuffer *input,
const GeglRectangle *result)
{
if (!input)
return FALSE;
if (gegl_object_get_has_forked (G_OBJECT (input)))
return FALSE;
if (gegl_buffer_get_format (input) == gegl_operation_get_format (operation, "output") &&
gegl_rectangle_contains (gegl_buffer_get_extent (input), result))
return TRUE;
return FALSE;
}
static gboolean
needs_indirect_read (GeglBufferIterator *iter,
int index)
{
GeglBufferIteratorPriv *priv = iter->priv;
SubIterState *sub = &priv->sub_iter[index];
if (sub->access_mode & GEGL_ITERATOR_INCOMPATIBLE)
return TRUE;
/* Needs abyss generation */
if (!gegl_rectangle_contains (&sub->buffer->abyss, &iter->roi[index]))
return TRUE;
return FALSE;
}
static gboolean
gimp_channel_combine_start (GimpChannel *mask,
GimpChannelOps op,
const GeglRectangle *rect,
gboolean full_extent,
gboolean full_value,
GimpChannelCombineData *data)
{
GeglBuffer *buffer = gimp_drawable_get_buffer (GIMP_DRAWABLE (mask));
GeglRectangle extent;
gboolean intersects;
extent.x = 0;
extent.y = 0;
extent.width = gimp_item_get_width (GIMP_ITEM (mask));
extent.height = gimp_item_get_height (GIMP_ITEM (mask));
intersects = gegl_rectangle_intersect (&data->rect, rect, &extent);
data->bounds_known = mask->bounds_known;
data->empty = mask->empty;
data->bounds.x = mask->x1;
data->bounds.y = mask->y1;
data->bounds.width = mask->x2 - mask->x1;
data->bounds.height = mask->y2 - mask->y1;
gegl_buffer_freeze_changed (buffer);
/* Determine new boundary */
switch (op)
{
case GIMP_CHANNEL_OP_REPLACE:
gimp_channel_combine_clear (mask, NULL);
if (! intersects)
{
data->bounds_known = TRUE;
data->empty = TRUE;
return FALSE;
}
data->bounds_known = FALSE;
if (full_extent)
{
data->bounds_known = TRUE;
data->empty = FALSE;
data->bounds = data->rect;
}
break;
case GIMP_CHANNEL_OP_ADD:
if (! intersects)
return FALSE;
data->bounds_known = FALSE;
if (full_extent && (mask->bounds_known ||
gegl_rectangle_equal (&data->rect, &extent)))
{
data->bounds_known = TRUE;
data->empty = FALSE;
if (mask->bounds_known && ! mask->empty)
{
gegl_rectangle_bounding_box (&data->bounds,
&data->bounds, &data->rect);
}
else
{
data->bounds = data->rect;
}
}
break;
case GIMP_CHANNEL_OP_SUBTRACT:
if (intersects && mask->bounds_known)
{
if (mask->empty)
{
intersects = FALSE;
}
else
{
intersects = gegl_rectangle_intersect (&data->rect,
&data->rect,
&data->bounds);
}
}
if (! intersects)
return FALSE;
if (full_value &&
gegl_rectangle_contains (&data->rect,
mask->bounds_known ? &data->bounds :
&extent))
{
gimp_channel_combine_clear (mask, NULL);
data->bounds_known = TRUE;
data->empty = TRUE;
return FALSE;
}
data->bounds_known = FALSE;
gegl_buffer_set_abyss (buffer, &data->rect);
break;
case GIMP_CHANNEL_OP_INTERSECT:
if (intersects && mask->bounds_known)
{
if (mask->empty)
{
intersects = FALSE;
}
else
{
intersects = gegl_rectangle_intersect (&data->rect,
&data->rect,
&data->bounds);
}
}
if (! intersects)
{
gimp_channel_combine_clear (mask, NULL);
data->bounds_known = TRUE;
data->empty = TRUE;
return FALSE;
}
if (full_value && mask->bounds_known &&
gegl_rectangle_contains (&data->rect, &data->bounds))
{
return FALSE;
}
data->bounds_known = FALSE;
gimp_channel_combine_clear_complement (mask, &data->rect);
gegl_buffer_set_abyss (buffer, &data->rect);
break;
}
return TRUE;
}
GeglBuffer *
gegl_operation_context_get_target (GeglOperationContext *context,
const gchar *padname)
{
GeglBuffer *output;
const GeglRectangle *result;
const Babl *format;
GeglNode *node;
GeglOperation *operation;
#if 0
g_return_val_if_fail (GEGL_IS_OPERATION_CONTEXT (context), NULL);
#endif
operation = context->operation;
node = operation->node; /* <ick */
format = gegl_operation_get_format (operation, padname);
if (format == NULL)
{
g_warning ("no format for %s presuming RGBA float\n",
gegl_node_get_debug_name (node));
format = babl_format ("RGBA float");
}
g_assert (format != NULL);
g_assert (!strcmp (padname, "output"));
result = &context->result_rect;
if (result->width == 0 ||
result->height == 0)
{
output = g_object_ref (emptybuf());
}
else if (node->dont_cache == FALSE &&
! GEGL_OPERATION_CLASS (G_OBJECT_GET_CLASS (operation))->no_cache)
{
GeglBuffer *cache;
cache = GEGL_BUFFER (gegl_node_get_cache (node));
/* Only use the cache if the result is within the cache
* extent. This is certainly not optimal. My gut feeling is that
* the current caching mechanism needs to be redesigned
*/
if (gegl_rectangle_contains (gegl_buffer_get_extent (cache), result))
{
output = g_object_ref (cache);
}
else
{
output = gegl_buffer_new_ram (result, format);
}
}
else
{
output = gegl_buffer_new_ram (result, format);
}
gegl_operation_context_take_object (context, padname, G_OBJECT (output));
return output;
}
