static void
gimp_projection_construct_gegl (GimpProjection *proj,
gint x,
gint y,
gint w,
gint h)
{
GeglNode *sink;
GeglRectangle rect;
sink = gimp_projection_get_sink_node (proj);
rect.x = x;
rect.y = y;
rect.width = w;
rect.height = h;
if (! proj->processor)
proj->processor = gegl_node_new_processor (sink, &rect);
else
gegl_processor_set_rectangle (proj->processor, &rect);
while (gegl_processor_work (proj->processor, NULL));
/* FIXME: Reuse it when it can handle dirty rects when painting
* properly
*/
g_object_unref (proj->processor);
proj->processor = NULL;
}
void
gimp_applicator_apply (GimpApplicator *applicator,
GeglBuffer *src_buffer,
GeglBuffer *apply_buffer,
gint apply_buffer_x,
gint apply_buffer_y,
gdouble opacity,
GimpLayerModeEffects paint_mode)
{
gint width = gegl_buffer_get_width (apply_buffer);
gint height = gegl_buffer_get_height (apply_buffer);
if (applicator->src_buffer != src_buffer)
{
applicator->src_buffer = src_buffer;
gegl_node_set (applicator->src_node,
"buffer", src_buffer,
NULL);
}
if (applicator->apply_buffer != apply_buffer)
{
applicator->apply_buffer = apply_buffer;
gegl_node_set (applicator->apply_src_node,
"buffer", apply_buffer,
NULL);
}
gegl_node_set (applicator->apply_offset_node,
"x", (gdouble) apply_buffer_x,
"y", (gdouble) apply_buffer_y,
NULL);
if ((applicator->opacity != opacity) ||
(applicator->paint_mode != paint_mode))
{
applicator->opacity = opacity;
applicator->paint_mode = paint_mode;
gimp_gegl_mode_node_set (applicator->mode_node,
paint_mode, opacity, FALSE);
}
gegl_processor_set_rectangle (applicator->processor,
GEGL_RECTANGLE (apply_buffer_x,
apply_buffer_y,
width, height));
while (gegl_processor_work (applicator->processor, NULL));
}
static gboolean
test_change_processor_rect_do_test (GeglProcessor *processor,
const GeglRectangle *rect,
GeglNode *sink)
{
gint i = 0;
gboolean result = TRUE;
float expected_result_buffer[4] = { 1.0, 1.0, 1.0, 1.0 };
float result_buffer[4] = { 0, };
GeglBuffer *buffer = NULL;
gegl_node_set (sink,
"buffer", &buffer,
NULL);
gegl_processor_set_rectangle (processor, rect);
while (gegl_processor_work (processor, NULL));
gegl_buffer_get (buffer,
rect,
1.0,
babl_format ("RGBA float"),
result_buffer,
GEGL_AUTO_ROWSTRIDE,
GEGL_ABYSS_NONE);
/* Compare with a small epsilon to account for accumulated error */
for(i = 0; i < G_N_ELEMENTS (expected_result_buffer); i++)
result = result && FLOATS_EQUAL (expected_result_buffer[i], result_buffer[i]);
gegl_node_set (sink,
"buffer", NULL,
NULL);
g_object_unref (buffer);
return result;
}
static gboolean
task_monitor(ViewHelper *self)
{
if (!self->processor || !self->node) {
return FALSE;
}
// PERFORMANCE: combine all the rects added to the queue during a single
// iteration of the main loop somehow
if (!self->currently_processed_rect) {
if (g_queue_is_empty(self->processing_queue)) {
// Unregister worker
self->monitor_id = 0;
return FALSE;
}
else {
// Fetch next rect to process
self->currently_processed_rect = (GeglRectangle *)g_queue_pop_tail(self->processing_queue);
g_assert(self->currently_processed_rect);
gegl_processor_set_rectangle(self->processor, self->currently_processed_rect);
}
}
gboolean processing_done = !gegl_processor_work(self->processor, NULL);
if (processing_done) {
// Go to next region
if (self->currently_processed_rect) {
g_free(self->currently_processed_rect);
}
self->currently_processed_rect = NULL;
}
return TRUE;
}
gboolean
gimp_gegl_apply_cached_operation (GeglBuffer *src_buffer,
GimpProgress *progress,
const gchar *undo_desc,
GeglNode *operation,
GeglBuffer *dest_buffer,
const GeglRectangle *dest_rect,
GeglBuffer *cache,
const GeglRectangle *valid_rects,
gint n_valid_rects,
gboolean cancellable)
{
GeglNode *gegl;
GeglNode *dest_node;
GeglRectangle rect = { 0, };
GeglProcessor *processor = NULL;
gboolean progress_started = FALSE;
gdouble value;
gboolean cancel = FALSE;
g_return_val_if_fail (src_buffer == NULL || GEGL_IS_BUFFER (src_buffer), FALSE);
g_return_val_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress), FALSE);
g_return_val_if_fail (GEGL_IS_NODE (operation), FALSE);
g_return_val_if_fail (GEGL_IS_BUFFER (dest_buffer), FALSE);
g_return_val_if_fail (cache == NULL || GEGL_IS_BUFFER (cache), FALSE);
g_return_val_if_fail (valid_rects == NULL || cache != NULL, FALSE);
g_return_val_if_fail (valid_rects == NULL || n_valid_rects != 0, FALSE);
if (dest_rect)
{
rect = *dest_rect;
}
else
{
rect = *GEGL_RECTANGLE (0, 0, gegl_buffer_get_width (dest_buffer),
gegl_buffer_get_height (dest_buffer));
}
gegl = gegl_node_new ();
if (! gegl_node_get_parent (operation))
gegl_node_add_child (gegl, operation);
if (src_buffer && gegl_node_has_pad (operation, "input"))
{
GeglNode *src_node;
/* dup() because reading and writing the same buffer doesn't
* work with area ops when using a processor. See bug #701875.
*/
if (progress && (src_buffer == dest_buffer))
src_buffer = gegl_buffer_dup (src_buffer);
else
g_object_ref (src_buffer);
src_node = gegl_node_new_child (gegl,
"operation", "gegl:buffer-source",
"buffer", src_buffer,
NULL);
g_object_unref (src_buffer);
gegl_node_connect_to (src_node, "output",
operation, "input");
}
dest_node = gegl_node_new_child (gegl,
"operation", "gegl:write-buffer",
"buffer", dest_buffer,
NULL);
gegl_node_connect_to (operation, "output",
dest_node, "input");
if (progress)
{
processor = gegl_node_new_processor (dest_node, &rect);
if (gimp_progress_is_active (progress))
{
if (undo_desc)
gimp_progress_set_text_literal (progress, undo_desc);
progress_started = FALSE;
cancellable = FALSE;
}
else
{
gimp_progress_start (progress, cancellable, "%s", undo_desc);
if (cancellable)
g_signal_connect (progress, "cancel",
G_CALLBACK (gimp_gegl_apply_operation_cancel),
&cancel);
progress_started = TRUE;
}
}
if (cache)
{
cairo_region_t *region;
gint all_pixels;
gint done_pixels = 0;
gint n_rects;
gint i;
region = cairo_region_create_rectangle ((cairo_rectangle_int_t *) &rect);
all_pixels = rect.width * rect.height;
for (i = 0; i < n_valid_rects; i++)
{
gegl_buffer_copy (cache, valid_rects + i, GEGL_ABYSS_NONE,
dest_buffer, valid_rects + i);
cairo_region_subtract_rectangle (region,
(cairo_rectangle_int_t *)
valid_rects + i);
done_pixels += valid_rects[i].width * valid_rects[i].height;
if (progress)
gimp_progress_set_value (progress,
(gdouble) done_pixels /
(gdouble) all_pixels);
}
n_rects = cairo_region_num_rectangles (region);
for (i = 0; ! cancel && (i < n_rects); i++)
{
cairo_rectangle_int_t render_rect;
cairo_region_get_rectangle (region, i, &render_rect);
if (progress)
{
gint rect_pixels = render_rect.width * render_rect.height;
#ifdef REUSE_PROCESSOR
gegl_processor_set_rectangle (processor,
(GeglRectangle *) &render_rect);
#else
g_object_unref (processor);
processor = gegl_node_new_processor (dest_node,
(GeglRectangle *) &render_rect);
#endif
while (! cancel && gegl_processor_work (processor, &value))
{
gimp_progress_set_value (progress,
((gdouble) done_pixels +
value * rect_pixels) /
(gdouble) all_pixels);
if (cancellable)
while (! cancel && g_main_context_pending (NULL))
g_main_context_iteration (NULL, FALSE);
}
done_pixels += rect_pixels;
}
else
{
gegl_node_blit (dest_node, 1.0, (GeglRectangle *) &render_rect,
NULL, NULL, 0, GEGL_BLIT_DEFAULT);
}
}
cairo_region_destroy (region);
}
else
{
if (progress)
{
while (! cancel && gegl_processor_work (processor, &value))
{
gimp_progress_set_value (progress, value);
if (cancellable)
while (! cancel && g_main_context_pending (NULL))
g_main_context_iteration (NULL, FALSE);
}
}
else
{
gegl_node_blit (dest_node, 1.0, &rect,
NULL, NULL, 0, GEGL_BLIT_DEFAULT);
}
}
if (processor)
g_object_unref (processor);
g_object_unref (gegl);
if (progress_started)
{
gimp_progress_end (progress);
if (cancellable)
g_signal_handlers_disconnect_by_func (progress,
gimp_gegl_apply_operation_cancel,
&cancel);
}
return ! cancel;
}
