TileManager *
gimp_projection_get_tiles_at_level (GimpProjection *proj,
gint level,
gboolean *is_premult)
{
g_return_val_if_fail (GIMP_IS_PROJECTION (proj), NULL);
if (! proj->pyramid)
{
const Babl *format;
gint bytes;
gint width;
gint height;
format = gimp_projection_get_format (GIMP_PICKABLE (proj));
bytes = babl_format_get_bytes_per_pixel (format);
gimp_projectable_get_size (proj->projectable, &width, &height);
proj->pyramid = tile_pyramid_new (bytes, width, height);
tile_pyramid_set_validate_proc (proj->pyramid,
(TileValidateProc) gimp_projection_validate_tile,
proj);
}
return tile_pyramid_get_tiles (proj->pyramid, level, is_premult);
}
GeglNode *
gimp_projection_get_sink_node (GimpProjection *proj)
{
GeglNode *graph;
GeglBuffer *buffer;
g_return_val_if_fail (GIMP_IS_PROJECTION (proj), NULL);
if (proj->sink_node)
return proj->sink_node;
proj->graph = gegl_node_new ();
g_object_set (proj->graph,
"dont-cache", TRUE,
NULL);
graph = gimp_projectable_get_graph (proj->projectable);
gegl_node_add_child (proj->graph, graph);
buffer = gimp_projection_get_buffer (GIMP_PICKABLE (proj));
proj->sink_node =
gegl_node_new_child (proj->graph,
"operation", "gegl:write-buffer",
"buffer", buffer,
NULL);
gegl_node_connect_to (graph, "output",
proj->sink_node, "input");
return proj->sink_node;
}
void
gimp_projection_flush_now (GimpProjection *proj)
{
g_return_if_fail (GIMP_IS_PROJECTION (proj));
/* Construct NOW */
gimp_projection_flush_whenever (proj, TRUE);
}
void
gimp_projection_flush (GimpProjection *proj)
{
g_return_if_fail (GIMP_IS_PROJECTION (proj));
/* Construct on idle time */
gimp_projection_flush_whenever (proj, FALSE);
}
void
gimp_projection_finish_draw (GimpProjection *proj)
{
g_return_if_fail (GIMP_IS_PROJECTION (proj));
if (proj->idle_render.idle_id)
{
g_source_remove (proj->idle_render.idle_id);
proj->idle_render.idle_id = 0;
while (gimp_projection_idle_render_callback (proj));
}
}
void
gimp_projection_finish_draw (GimpProjection *proj)
{
g_return_if_fail (GIMP_IS_PROJECTION (proj));
if (proj->idle_render.idle_id)
{
#if 0
g_printerr ("%s: flushing idle render queue\n", G_STRFUNC);
#endif
g_source_remove (proj->idle_render.idle_id);
proj->idle_render.idle_id = 0;
while (gimp_projection_idle_render_callback (proj));
}
}
void
gimp_projection_construct (GimpProjection *proj,
gint x,
gint y,
gint w,
gint h)
{
g_return_if_fail (GIMP_IS_PROJECTION (proj));
#if 0
GList *layers = gimp_projectable_get_layers (proj->projectable);
if (layers && ! layers->next) /* a single layer */
{
GimpLayer *layer = layers->data;
GimpDrawable *drawable = GIMP_DRAWABLE (layer);
GimpItem *item = GIMP_ITEM (layer);
gint width, height;
gint off_x, off_y;
gimp_projectable_get_offset (proj->projectable, &proj_off_x, &proj_off_y);
gimp_projectable_get_size (proj->projectable, &width, &height);
gimp_item_get_offset (item, &off_x, &off_y);
if (gimp_drawable_has_alpha (drawable) &&
gimp_item_get_visible (item) &&
gimp_item_get_width (item) == width &&
gimp_item_get_height (item) == height &&
! gimp_drawable_is_indexed (layer) &&
gimp_layer_get_opacity (layer) == GIMP_OPACITY_OPAQUE &&
off_x == 0 &&
off_y == 0 &&
proj_offset_x == 0 &&
proj_offset_y == 0)
{
PixelRegion srcPR, destPR;
g_printerr ("cow-projection!");
pixel_region_init (&srcPR,
gimp_drawable_get_tiles (layer),
x, y, w,h, FALSE);
pixel_region_init (&destPR,
gimp_pickable_get_tiles (GIMP_PICKABLE (proj)),
x, y, w,h, TRUE);
copy_region (&srcPR, &destPR);
proj->construct_flag = TRUE;
gimp_projection_construct_legacy (proj, FALSE, x, y, w, h);
return;
}
}
#endif
/* First, determine if the projection image needs to be
* initialized--this is the case when there are no visible
* layers that cover the entire canvas--either because layers
* are offset or only a floating selection is visible
*/
gimp_projection_initialize (proj, x, y, w, h);
/* call functions which process the list of layers and
* the list of channels
*/
if (proj->use_gegl)
{
gimp_projection_construct_gegl (proj, x, y, w, h);
}
else
{
proj->construct_flag = FALSE;
gimp_projection_construct_legacy (proj, TRUE, x, y, w, h);
}
}
