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-rw-r--r--app/gegl/gimp-gegl-apply-operation.c827
1 files changed, 827 insertions, 0 deletions
diff --git a/app/gegl/gimp-gegl-apply-operation.c b/app/gegl/gimp-gegl-apply-operation.c
new file mode 100644
index 0000000..d76b3b1
--- /dev/null
+++ b/app/gegl/gimp-gegl-apply-operation.c
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+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimp-apply-operation.c
+ * Copyright (C) 2012 Øyvind Kolås <pippin@gimp.org>
+ * Sven Neumann <sven@gimp.org>
+ * Michael Natterer <mitch@gimp.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <cairo.h>
+#include <gio/gio.h>
+#include <gegl.h>
+
+#include "gimp-gegl-types.h"
+
+#include "core/gimp-transform-utils.h"
+#include "core/gimp-utils.h"
+#include "core/gimpchunkiterator.h"
+#include "core/gimpprogress.h"
+
+#include "gimp-gegl-apply-operation.h"
+#include "gimp-gegl-loops.h"
+#include "gimp-gegl-nodes.h"
+#include "gimp-gegl-utils.h"
+
+
+/* iteration interval when applying an operation interactively
+ * (with progress indication)
+ */
+#define APPLY_OPERATION_INTERACTIVE_INTERVAL (1.0 / 8.0) /* seconds */
+
+/* iteration interval when applying an operation non-interactively
+ * (without progress indication)
+ */
+#define APPLY_OPERATION_NON_INTERACTIVE_INTERVAL 1.0 /* seconds */
+
+
+void
+gimp_gegl_apply_operation (GeglBuffer *src_buffer,
+ GimpProgress *progress,
+ const gchar *undo_desc,
+ GeglNode *operation,
+ GeglBuffer *dest_buffer,
+ const GeglRectangle *dest_rect,
+ gboolean crop_input)
+{
+ gimp_gegl_apply_cached_operation (src_buffer,
+ progress, undo_desc,
+ operation,
+ src_buffer != NULL,
+ dest_buffer,
+ dest_rect,
+ crop_input,
+ NULL, NULL, 0,
+ FALSE);
+}
+
+static void
+gimp_gegl_apply_operation_cancel (GimpProgress *progress,
+ gboolean *cancel)
+{
+ *cancel = TRUE;
+}
+
+gboolean
+gimp_gegl_apply_cached_operation (GeglBuffer *src_buffer,
+ GimpProgress *progress,
+ const gchar *undo_desc,
+ GeglNode *operation,
+ gboolean connect_src_buffer,
+ GeglBuffer *dest_buffer,
+ const GeglRectangle *dest_rect,
+ gboolean crop_input,
+ GeglBuffer *cache,
+ const GeglRectangle *valid_rects,
+ gint n_valid_rects,
+ gboolean cancelable)
+{
+ GeglNode *gegl;
+ GeglNode *effect;
+ GeglNode *dest_node;
+ GeglNode *underlying_operation;
+ GeglNode *operation_src_node = NULL;
+ GeglBuffer *result_buffer;
+ GimpChunkIterator *iter;
+ cairo_region_t *region;
+ gboolean progress_started = FALSE;
+ gboolean cancel = FALSE;
+ gint64 all_pixels;
+ gint64 done_pixels;
+
+ 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)
+ dest_rect = gegl_buffer_get_extent (dest_buffer);
+
+ if (progress)
+ {
+ if (gimp_progress_is_active (progress))
+ {
+ if (undo_desc)
+ gimp_progress_set_text_literal (progress, undo_desc);
+
+ progress_started = FALSE;
+ cancelable = FALSE;
+ }
+ else
+ {
+ gimp_progress_start (progress, cancelable, "%s", undo_desc);
+
+ if (cancelable)
+ g_signal_connect (progress, "cancel",
+ G_CALLBACK (gimp_gegl_apply_operation_cancel),
+ &cancel);
+
+ progress_started = TRUE;
+ }
+ }
+ else
+ {
+ cancelable = FALSE;
+ }
+
+ gegl_buffer_freeze_changed (dest_buffer);
+
+ underlying_operation = gimp_gegl_node_get_underlying_operation (operation);
+
+ result_buffer = dest_buffer;
+
+ if (result_buffer == src_buffer &&
+ ! (gimp_gegl_node_is_point_operation (underlying_operation) ||
+ gimp_gegl_node_is_source_operation (underlying_operation)))
+ {
+ /* Write the result to a temporary buffer, instead of directly to
+ * dest_buffer, since reading and writing the same buffer doesn't
+ * generally work with non-point ops when working in chunks.
+ *
+ * See bug #701875.
+ */
+
+ if (cache)
+ {
+ /* If we have a cache, use it directly as the temporary result
+ * buffer, and skip copying the cached results to result_buffer
+ * below. Instead, the cached results are copied together with the
+ * newly rendered results in a single step at the end of processing.
+ */
+
+ g_warn_if_fail (cache != dest_buffer);
+
+ result_buffer = g_object_ref (cache);
+
+ cache = NULL;
+ }
+ else
+ {
+ result_buffer = gegl_buffer_new (
+ dest_rect, gegl_buffer_get_format (dest_buffer));
+ }
+ }
+
+ all_pixels = (gint64) dest_rect->width * (gint64) dest_rect->height;
+ done_pixels = 0;
+
+ region = cairo_region_create_rectangle ((cairo_rectangle_int_t *) dest_rect);
+
+ if (n_valid_rects > 0)
+ {
+ gint i;
+
+ for (i = 0; i < n_valid_rects; i++)
+ {
+ GeglRectangle valid_rect;
+
+ if (! gegl_rectangle_intersect (&valid_rect,
+ &valid_rects[i], dest_rect))
+ {
+ continue;
+ }
+
+ if (cache)
+ {
+ gimp_gegl_buffer_copy (
+ cache, &valid_rect, GEGL_ABYSS_NONE,
+ result_buffer, &valid_rect);
+ }
+
+ cairo_region_subtract_rectangle (region,
+ (cairo_rectangle_int_t *)
+ &valid_rect);
+
+ done_pixels += (gint64) valid_rect.width * (gint64) valid_rect.height;
+
+ if (progress)
+ {
+ gimp_progress_set_value (progress,
+ (gdouble) done_pixels /
+ (gdouble) all_pixels);
+ }
+ }
+ }
+
+ gegl = gegl_node_new ();
+
+ if (! gegl_node_get_parent (operation))
+ gegl_node_add_child (gegl, operation);
+
+ effect = operation;
+
+ if (connect_src_buffer || crop_input)
+ {
+ GeglNode *src_node;
+
+ operation_src_node = gegl_node_get_producer (operation, "input", NULL);
+
+ src_node = operation_src_node;
+
+ if (connect_src_buffer)
+ {
+ src_node = gegl_node_new_child (gegl,
+ "operation", "gegl:buffer-source",
+ "buffer", src_buffer,
+ NULL);
+ }
+
+ if (crop_input)
+ {
+ GeglNode *crop_node;
+
+ crop_node = gegl_node_new_child (gegl,
+ "operation", "gegl:crop",
+ "x", (gdouble) dest_rect->x,
+ "y", (gdouble) dest_rect->y,
+ "width", (gdouble) dest_rect->width,
+ "height", (gdouble) dest_rect->height,
+ NULL);
+
+ gegl_node_connect_to (src_node, "output",
+ crop_node, "input");
+
+ src_node = crop_node;
+ }
+
+ if (! gegl_node_has_pad (operation, "input"))
+ {
+ effect = gegl_node_new_child (gegl,
+ "operation", "gimp:normal",
+ NULL);
+
+ gegl_node_connect_to (operation, "output",
+ effect, "aux");
+ }
+
+ gegl_node_connect_to (src_node, "output",
+ effect, "input");
+ }
+
+ dest_node = gegl_node_new_child (gegl,
+ "operation", "gegl:write-buffer",
+ "buffer", result_buffer,
+ NULL);
+
+ gegl_node_connect_to (effect, "output",
+ dest_node, "input");
+
+ iter = gimp_chunk_iterator_new (region);
+
+ if (progress &&
+ /* avoid the interactive iteration interval for area filters (or meta ops
+ * that potentially involve area filters), since their processing speed
+ * tends to be sensitive to the chunk size.
+ */
+ ! gimp_gegl_node_is_area_filter_operation (underlying_operation))
+ {
+ /* we use a shorter iteration interval for interactive use (when there's
+ * progress indication), to stay responsive.
+ */
+ gimp_chunk_iterator_set_interval (
+ iter,
+ APPLY_OPERATION_INTERACTIVE_INTERVAL);
+ }
+ else
+ {
+ /* we use a longer iteration interval for non-interactive use (when
+ * there's no progress indication), or when applying an area filter (see
+ * above), as this generally allows for faster processing. we don't
+ * avoid chunking altogether, since *some* chunking is still desirable to
+ * reduce the space needed for intermediate results.
+ */
+ gimp_chunk_iterator_set_interval (
+ iter,
+ APPLY_OPERATION_NON_INTERACTIVE_INTERVAL);
+ }
+
+ while (gimp_chunk_iterator_next (iter))
+ {
+ GeglRectangle render_rect;
+
+ if (cancelable)
+ {
+ while (! cancel && g_main_context_pending (NULL))
+ g_main_context_iteration (NULL, FALSE);
+
+ if (cancel)
+ break;
+ }
+
+ while (gimp_chunk_iterator_get_rect (iter, &render_rect))
+ {
+ gegl_node_blit (dest_node, 1.0, &render_rect, NULL, NULL, 0,
+ GEGL_BLIT_DEFAULT);
+
+ done_pixels += (gint64) render_rect.width *
+ (gint64) render_rect.height;
+ }
+
+ if (progress)
+ {
+ gimp_progress_set_value (progress,
+ (gdouble) done_pixels /
+ (gdouble) all_pixels);
+ }
+ }
+
+ if (result_buffer != dest_buffer)
+ {
+ if (! cancel)
+ gimp_gegl_buffer_copy (result_buffer, dest_rect, GEGL_ABYSS_NONE,
+ dest_buffer, dest_rect);
+
+ g_object_unref (result_buffer);
+ }
+
+ gegl_buffer_thaw_changed (dest_buffer);
+
+ g_object_unref (gegl);
+
+ if (operation_src_node)
+ {
+ gegl_node_connect_to (operation_src_node, "output",
+ operation, "input");
+ }
+
+ if (progress_started)
+ {
+ gimp_progress_end (progress);
+
+ if (cancelable)
+ g_signal_handlers_disconnect_by_func (progress,
+ gimp_gegl_apply_operation_cancel,
+ &cancel);
+ }
+
+ return ! cancel;
+}
+
+void
+gimp_gegl_apply_dither (GeglBuffer *src_buffer,
+ GimpProgress *progress,
+ const gchar *undo_desc,
+ GeglBuffer *dest_buffer,
+ gint levels,
+ gint dither_type)
+{
+ GeglNode *node;
+
+ g_return_if_fail (GEGL_IS_BUFFER (src_buffer));
+ g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
+ g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
+
+ levels = CLAMP (levels, 2, 65536);
+
+ node = gegl_node_new_child (NULL,
+ "operation", "gegl:dither",
+ "red-levels", levels,
+ "green-levels", levels,
+ "blue-levels", levels,
+ "alpha-bits", levels,
+ "dither-method", dither_type,
+ NULL);
+
+ gimp_gegl_apply_operation (src_buffer, progress, undo_desc,
+ node, dest_buffer, NULL, FALSE);
+ g_object_unref (node);
+}
+
+void
+gimp_gegl_apply_flatten (GeglBuffer *src_buffer,
+ GimpProgress *progress,
+ const gchar *undo_desc,
+ GeglBuffer *dest_buffer,
+ const GimpRGB *background,
+ GimpLayerColorSpace composite_space)
+{
+ GeglNode *node;
+
+ g_return_if_fail (GEGL_IS_BUFFER (src_buffer));
+ g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
+ g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
+ g_return_if_fail (background != NULL);
+
+ node = gimp_gegl_create_flatten_node (background, composite_space);
+
+ gimp_gegl_apply_operation (src_buffer, progress, undo_desc,
+ node, dest_buffer, NULL, FALSE);
+ g_object_unref (node);
+}
+
+void
+gimp_gegl_apply_feather (GeglBuffer *src_buffer,
+ GimpProgress *progress,
+ const gchar *undo_desc,
+ GeglBuffer *dest_buffer,
+ const GeglRectangle *dest_rect,
+ gdouble radius_x,
+ gdouble radius_y,
+ gboolean edge_lock)
+{
+ GaussianBlurAbyssPolicy abyss_policy;
+
+ g_return_if_fail (GEGL_IS_BUFFER (src_buffer));
+ g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
+ g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
+
+ if (edge_lock)
+ abyss_policy = GAUSSIAN_BLUR_ABYSS_CLAMP;
+ else
+ abyss_policy = GAUSSIAN_BLUR_ABYSS_NONE;
+
+ /* 3.5 is completely magic and picked to visually match the old
+ * gaussian_blur_region() on a crappy laptop display
+ */
+ gimp_gegl_apply_gaussian_blur (src_buffer,
+ progress, undo_desc,
+ dest_buffer, dest_rect,
+ radius_x / 3.5,
+ radius_y / 3.5,
+ abyss_policy);
+}
+
+void
+gimp_gegl_apply_border (GeglBuffer *src_buffer,
+ GimpProgress *progress,
+ const gchar *undo_desc,
+ GeglBuffer *dest_buffer,
+ const GeglRectangle *dest_rect,
+ gint radius_x,
+ gint radius_y,
+ GimpChannelBorderStyle style,
+ gboolean edge_lock)
+{
+ GeglNode *node;
+
+ g_return_if_fail (GEGL_IS_BUFFER (src_buffer));
+ g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
+ g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
+
+ switch (style)
+ {
+ case GIMP_CHANNEL_BORDER_STYLE_HARD:
+ case GIMP_CHANNEL_BORDER_STYLE_FEATHERED:
+ {
+ gboolean feather = style == GIMP_CHANNEL_BORDER_STYLE_FEATHERED;
+
+ node = gegl_node_new_child (NULL,
+ "operation", "gimp:border",
+ "radius-x", radius_x,
+ "radius-y", radius_y,
+ "feather", feather,
+ "edge-lock", edge_lock,
+ NULL);
+ }
+ break;
+
+ case GIMP_CHANNEL_BORDER_STYLE_SMOOTH:
+ {
+ GeglNode *input, *output;
+ GeglNode *grow, *shrink, *subtract;
+
+ node = gegl_node_new ();
+
+ input = gegl_node_get_input_proxy (node, "input");
+ output = gegl_node_get_output_proxy (node, "output");
+
+ /* Duplicate special-case behavior of "gimp:border". */
+ if (radius_x == 1 && radius_y == 1)
+ {
+ grow = gegl_node_new_child (node,
+ "operation", "gegl:nop",
+ NULL);
+ shrink = gegl_node_new_child (node,
+ "operation", "gimp:shrink",
+ "radius-x", 1,
+ "radius-y", 1,
+ "edge-lock", edge_lock,
+ NULL);
+ }
+ else
+ {
+ grow = gegl_node_new_child (node,
+ "operation", "gimp:grow",
+ "radius-x", radius_x,
+ "radius-y", radius_y,
+ NULL);
+ shrink = gegl_node_new_child (node,
+ "operation", "gimp:shrink",
+ "radius-x", radius_x + 1,
+ "radius-y", radius_y + 1,
+ "edge-lock", edge_lock,
+ NULL);
+ }
+
+ subtract = gegl_node_new_child (node,
+ "operation", "gegl:subtract",
+ NULL);
+
+ gegl_node_link_many (input, grow, subtract, output, NULL);
+ gegl_node_link (input, shrink);
+ gegl_node_connect_to (shrink, "output", subtract, "aux");
+ }
+ break;
+
+ default:
+ gimp_assert_not_reached ();
+ }
+
+ gimp_gegl_apply_operation (src_buffer, progress, undo_desc,
+ node, dest_buffer, dest_rect, TRUE);
+ g_object_unref (node);
+}
+
+void
+gimp_gegl_apply_grow (GeglBuffer *src_buffer,
+ GimpProgress *progress,
+ const gchar *undo_desc,
+ GeglBuffer *dest_buffer,
+ const GeglRectangle *dest_rect,
+ gint radius_x,
+ gint radius_y)
+{
+ GeglNode *node;
+
+ g_return_if_fail (GEGL_IS_BUFFER (src_buffer));
+ g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
+ g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
+
+ node = gegl_node_new_child (NULL,
+ "operation", "gimp:grow",
+ "radius-x", radius_x,
+ "radius-y", radius_y,
+ NULL);
+
+ gimp_gegl_apply_operation (src_buffer, progress, undo_desc,
+ node, dest_buffer, dest_rect, TRUE);
+ g_object_unref (node);
+}
+
+void
+gimp_gegl_apply_shrink (GeglBuffer *src_buffer,
+ GimpProgress *progress,
+ const gchar *undo_desc,
+ GeglBuffer *dest_buffer,
+ const GeglRectangle *dest_rect,
+ gint radius_x,
+ gint radius_y,
+ gboolean edge_lock)
+{
+ GeglNode *node;
+
+ g_return_if_fail (GEGL_IS_BUFFER (src_buffer));
+ g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
+ g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
+
+ node = gegl_node_new_child (NULL,
+ "operation", "gimp:shrink",
+ "radius-x", radius_x,
+ "radius-y", radius_y,
+ "edge-lock", edge_lock,
+ NULL);
+
+ gimp_gegl_apply_operation (src_buffer, progress, undo_desc,
+ node, dest_buffer, dest_rect, TRUE);
+ g_object_unref (node);
+}
+
+void
+gimp_gegl_apply_flood (GeglBuffer *src_buffer,
+ GimpProgress *progress,
+ const gchar *undo_desc,
+ GeglBuffer *dest_buffer,
+ const GeglRectangle *dest_rect)
+{
+ GeglNode *node;
+
+ g_return_if_fail (GEGL_IS_BUFFER (src_buffer));
+ g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
+ g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
+
+ node = gegl_node_new_child (NULL,
+ "operation", "gimp:flood",
+ NULL);
+
+ gimp_gegl_apply_operation (src_buffer, progress, undo_desc,
+ node, dest_buffer, dest_rect, TRUE);
+ g_object_unref (node);
+}
+
+void
+gimp_gegl_apply_gaussian_blur (GeglBuffer *src_buffer,
+ GimpProgress *progress,
+ const gchar *undo_desc,
+ GeglBuffer *dest_buffer,
+ const GeglRectangle *dest_rect,
+ gdouble std_dev_x,
+ gdouble std_dev_y,
+ GaussianBlurAbyssPolicy abyss_policy)
+{
+ GeglNode *node;
+
+ g_return_if_fail (GEGL_IS_BUFFER (src_buffer));
+ g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
+ g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
+
+ node = gegl_node_new_child (NULL,
+ "operation", "gegl:gaussian-blur",
+ "std-dev-x", std_dev_x,
+ "std-dev-y", std_dev_y,
+ "abyss-policy", abyss_policy,
+ NULL);
+
+ gimp_gegl_apply_operation (src_buffer, progress, undo_desc,
+ node, dest_buffer, dest_rect, FALSE);
+ g_object_unref (node);
+}
+
+void
+gimp_gegl_apply_invert_gamma (GeglBuffer *src_buffer,
+ GimpProgress *progress,
+ const gchar *undo_desc,
+ GeglBuffer *dest_buffer)
+{
+ GeglNode *node;
+
+ g_return_if_fail (GEGL_IS_BUFFER (src_buffer));
+ g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
+ g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
+
+ node = gegl_node_new_child (NULL,
+ "operation", "gegl:invert-gamma",
+ NULL);
+
+ gimp_gegl_apply_operation (src_buffer, progress, undo_desc,
+ node, dest_buffer, NULL, FALSE);
+ g_object_unref (node);
+}
+
+void
+gimp_gegl_apply_invert_linear (GeglBuffer *src_buffer,
+ GimpProgress *progress,
+ const gchar *undo_desc,
+ GeglBuffer *dest_buffer)
+{
+ GeglNode *node;
+
+ g_return_if_fail (GEGL_IS_BUFFER (src_buffer));
+ g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
+ g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
+
+ node = gegl_node_new_child (NULL,
+ "operation", "gegl:invert-linear",
+ NULL);
+
+ gimp_gegl_apply_operation (src_buffer, progress, undo_desc,
+ node, dest_buffer, NULL, FALSE);
+ g_object_unref (node);
+}
+
+void
+gimp_gegl_apply_opacity (GeglBuffer *src_buffer,
+ GimpProgress *progress,
+ const gchar *undo_desc,
+ GeglBuffer *dest_buffer,
+ GeglBuffer *mask,
+ gint mask_offset_x,
+ gint mask_offset_y,
+ gdouble opacity)
+{
+ GeglNode *node;
+
+ g_return_if_fail (GEGL_IS_BUFFER (src_buffer));
+ g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
+ g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
+ g_return_if_fail (mask == NULL || GEGL_IS_BUFFER (mask));
+
+ node = gimp_gegl_create_apply_opacity_node (mask,
+ mask_offset_x,
+ mask_offset_y,
+ opacity);
+
+ gimp_gegl_apply_operation (src_buffer, progress, undo_desc,
+ node, dest_buffer, NULL, FALSE);
+ g_object_unref (node);
+}
+
+void
+gimp_gegl_apply_scale (GeglBuffer *src_buffer,
+ GimpProgress *progress,
+ const gchar *undo_desc,
+ GeglBuffer *dest_buffer,
+ GimpInterpolationType interpolation_type,
+ gdouble x,
+ gdouble y)
+{
+ GeglNode *node;
+
+ g_return_if_fail (GEGL_IS_BUFFER (src_buffer));
+ g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
+ g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
+
+ node = gegl_node_new_child (NULL,
+ "operation", "gegl:scale-ratio",
+ "origin-x", 0.0,
+ "origin-y", 0.0,
+ "sampler", interpolation_type,
+ "abyss-policy", GEGL_ABYSS_CLAMP,
+ "x", x,
+ "y", y,
+ NULL);
+
+ gimp_gegl_apply_operation (src_buffer, progress, undo_desc,
+ node, dest_buffer, NULL, FALSE);
+ g_object_unref (node);
+}
+
+void
+gimp_gegl_apply_set_alpha (GeglBuffer *src_buffer,
+ GimpProgress *progress,
+ const gchar *undo_desc,
+ GeglBuffer *dest_buffer,
+ gdouble value)
+{
+ GeglNode *node;
+
+ g_return_if_fail (GEGL_IS_BUFFER (src_buffer));
+ g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
+ g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
+
+ node = gegl_node_new_child (NULL,
+ "operation", "gimp:set-alpha",
+ "value", value,
+ NULL);
+
+ gimp_gegl_apply_operation (src_buffer, progress, undo_desc,
+ node, dest_buffer, NULL, FALSE);
+ g_object_unref (node);
+}
+
+void
+gimp_gegl_apply_threshold (GeglBuffer *src_buffer,
+ GimpProgress *progress,
+ const gchar *undo_desc,
+ GeglBuffer *dest_buffer,
+ gdouble value)
+{
+ GeglNode *node;
+
+ g_return_if_fail (GEGL_IS_BUFFER (src_buffer));
+ g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
+ g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
+
+ node = gegl_node_new_child (NULL,
+ "operation", "gegl:threshold",
+ "value", value,
+ NULL);
+
+ gimp_gegl_apply_operation (src_buffer, progress, undo_desc,
+ node, dest_buffer, NULL, FALSE);
+ g_object_unref (node);
+}
+
+void
+gimp_gegl_apply_transform (GeglBuffer *src_buffer,
+ GimpProgress *progress,
+ const gchar *undo_desc,
+ GeglBuffer *dest_buffer,
+ GimpInterpolationType interpolation_type,
+ GimpMatrix3 *transform)
+{
+ GeglNode *node;
+
+ g_return_if_fail (GEGL_IS_BUFFER (src_buffer));
+ g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
+ g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
+
+ node = gegl_node_new_child (NULL,
+ "operation", "gegl:transform",
+ "near-z", GIMP_TRANSFORM_NEAR_Z,
+ "sampler", interpolation_type,
+ NULL);
+
+ gimp_gegl_node_set_matrix (node, transform);
+
+ gimp_gegl_apply_operation (src_buffer, progress, undo_desc,
+ node, dest_buffer, NULL, FALSE);
+ g_object_unref (node);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-23 07:09:48 +0000