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PIKApp/app/gegl/pika-gegl-apply-operation.c

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/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* pika-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 "pika-gegl-types.h"
#include "core/pika-transform-utils.h"
#include "core/pika-utils.h"
#include "core/pikachunkiterator.h"
#include "core/pikaprogress.h"
#include "pika-gegl-apply-operation.h"
#include "pika-gegl-loops.h"
#include "pika-gegl-nodes.h"
#include "pika-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
pika_gegl_apply_operation (GeglBuffer *src_buffer,
PikaProgress *progress,
const gchar *undo_desc,
GeglNode *operation,
GeglBuffer *dest_buffer,
const GeglRectangle *dest_rect,
gboolean crop_input)
{
pika_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
pika_gegl_apply_operation_cancel (PikaProgress *progress,
gboolean *cancel)
{
*cancel = TRUE;
}
gboolean
pika_gegl_apply_cached_operation (GeglBuffer *src_buffer,
PikaProgress *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;
PikaChunkIterator *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 || PIKA_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 (pika_progress_is_active (progress))
{
if (undo_desc)
pika_progress_set_text_literal (progress, undo_desc);
progress_started = FALSE;
cancelable = FALSE;
}
else
{
pika_progress_start (progress, cancelable, "%s", undo_desc);
if (cancelable)
g_signal_connect (progress, "cancel",
G_CALLBACK (pika_gegl_apply_operation_cancel),
&cancel);
progress_started = TRUE;
}
}
else
{
cancelable = FALSE;
}
gegl_buffer_freeze_changed (dest_buffer);
underlying_operation = pika_gegl_node_get_underlying_operation (operation);
result_buffer = dest_buffer;
if (result_buffer == src_buffer &&
! (pika_gegl_node_is_point_operation (underlying_operation) ||
pika_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)
{
pika_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)
{
pika_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_link (src_node, crop_node);
src_node = crop_node;
}
if (! gegl_node_has_pad (operation, "input"))
{
effect = gegl_node_new_child (gegl,
"operation", "pika:normal",
NULL);
gegl_node_connect (operation, "output", effect, "aux");
}
gegl_node_link (src_node, effect);
}
dest_node = gegl_node_new_child (gegl,
"operation", "gegl:write-buffer",
"buffer", result_buffer,
NULL);
gegl_node_link (effect, dest_node);
iter = pika_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.
*/
! pika_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.
*/
pika_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.
*/
pika_chunk_iterator_set_interval (
iter,
APPLY_OPERATION_NON_INTERACTIVE_INTERVAL);
}
while (pika_chunk_iterator_next (iter))
{
GeglRectangle render_rect;
if (progress)
{
while (! cancel && g_main_context_pending (NULL))
g_main_context_iteration (NULL, FALSE);
if (cancel)
break;
}
while (pika_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)
{
pika_progress_set_value (progress,
(gdouble) done_pixels /
(gdouble) all_pixels);
}
}
if (result_buffer != dest_buffer)
{
if (! cancel)
pika_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_link (operation_src_node, operation);
}
if (progress_started)
{
pika_progress_end (progress);
if (cancelable)
g_signal_handlers_disconnect_by_func (progress,
pika_gegl_apply_operation_cancel,
&cancel);
}
return ! cancel;
}
void
pika_gegl_apply_dither (GeglBuffer *src_buffer,
PikaProgress *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 || PIKA_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);
pika_gegl_apply_operation (src_buffer, progress, undo_desc,
node, dest_buffer, NULL, FALSE);
g_object_unref (node);
}
void
pika_gegl_apply_flatten (GeglBuffer *src_buffer,
PikaProgress *progress,
const gchar *undo_desc,
GeglBuffer *dest_buffer,
const PikaRGB *background,
const Babl *space,
PikaLayerColorSpace composite_space)
{
GeglNode *node;
g_return_if_fail (GEGL_IS_BUFFER (src_buffer));
g_return_if_fail (progress == NULL || PIKA_IS_PROGRESS (progress));
g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
g_return_if_fail (background != NULL);
node = pika_gegl_create_flatten_node (background, space, composite_space);
pika_gegl_apply_operation (src_buffer, progress, undo_desc,
node, dest_buffer, NULL, FALSE);
g_object_unref (node);
}
void
pika_gegl_apply_feather (GeglBuffer *src_buffer,
PikaProgress *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 || PIKA_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
*/
pika_gegl_apply_gaussian_blur (src_buffer,
progress, undo_desc,
dest_buffer, dest_rect,
radius_x / 3.5,
radius_y / 3.5,
abyss_policy);
}
void
pika_gegl_apply_border (GeglBuffer *src_buffer,
PikaProgress *progress,
const gchar *undo_desc,
GeglBuffer *dest_buffer,
const GeglRectangle *dest_rect,
gint radius_x,
gint radius_y,
PikaChannelBorderStyle style,
gboolean edge_lock)
{
GeglNode *node;
g_return_if_fail (GEGL_IS_BUFFER (src_buffer));
g_return_if_fail (progress == NULL || PIKA_IS_PROGRESS (progress));
g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
switch (style)
{
case PIKA_CHANNEL_BORDER_STYLE_HARD:
case PIKA_CHANNEL_BORDER_STYLE_FEATHERED:
{
gboolean feather = style == PIKA_CHANNEL_BORDER_STYLE_FEATHERED;
node = gegl_node_new_child (NULL,
"operation", "pika:border",
"radius-x", radius_x,
"radius-y", radius_y,
"feather", feather,
"edge-lock", edge_lock,
NULL);
}
break;
case PIKA_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 "pika: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", "pika:shrink",
"radius-x", 1,
"radius-y", 1,
"edge-lock", edge_lock,
NULL);
}
else
{
grow = gegl_node_new_child (node,
"operation", "pika:grow",
"radius-x", radius_x,
"radius-y", radius_y,
NULL);
shrink = gegl_node_new_child (node,
"operation", "pika: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 (shrink, "output", subtract, "aux");
}
break;
default:
pika_assert_not_reached ();
}
pika_gegl_apply_operation (src_buffer, progress, undo_desc,
node, dest_buffer, dest_rect, TRUE);
g_object_unref (node);
}
void
pika_gegl_apply_grow (GeglBuffer *src_buffer,
PikaProgress *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 || PIKA_IS_PROGRESS (progress));
g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
node = gegl_node_new_child (NULL,
"operation", "pika:grow",
"radius-x", radius_x,
"radius-y", radius_y,
NULL);
pika_gegl_apply_operation (src_buffer, progress, undo_desc,
node, dest_buffer, dest_rect, TRUE);
g_object_unref (node);
}
void
pika_gegl_apply_shrink (GeglBuffer *src_buffer,
PikaProgress *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 || PIKA_IS_PROGRESS (progress));
g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
node = gegl_node_new_child (NULL,
"operation", "pika:shrink",
"radius-x", radius_x,
"radius-y", radius_y,
"edge-lock", edge_lock,
NULL);
pika_gegl_apply_operation (src_buffer, progress, undo_desc,
node, dest_buffer, dest_rect, TRUE);
g_object_unref (node);
}
void
pika_gegl_apply_flood (GeglBuffer *src_buffer,
PikaProgress *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 || PIKA_IS_PROGRESS (progress));
g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
node = gegl_node_new_child (NULL,
"operation", "pika:flood",
NULL);
pika_gegl_apply_operation (src_buffer, progress, undo_desc,
node, dest_buffer, dest_rect, TRUE);
g_object_unref (node);
}
void
pika_gegl_apply_gaussian_blur (GeglBuffer *src_buffer,
PikaProgress *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 || PIKA_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);
pika_gegl_apply_operation (src_buffer, progress, undo_desc,
node, dest_buffer, dest_rect, FALSE);
g_object_unref (node);
}
void
pika_gegl_apply_invert_gamma (GeglBuffer *src_buffer,
PikaProgress *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 || PIKA_IS_PROGRESS (progress));
g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
node = gegl_node_new_child (NULL,
"operation", "gegl:invert-gamma",
NULL);
pika_gegl_apply_operation (src_buffer, progress, undo_desc,
node, dest_buffer, NULL, FALSE);
g_object_unref (node);
}
void
pika_gegl_apply_invert_linear (GeglBuffer *src_buffer,
PikaProgress *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 || PIKA_IS_PROGRESS (progress));
g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
node = gegl_node_new_child (NULL,
"operation", "gegl:invert-linear",
NULL);
pika_gegl_apply_operation (src_buffer, progress, undo_desc,
node, dest_buffer, NULL, FALSE);
g_object_unref (node);
}
void
pika_gegl_apply_opacity (GeglBuffer *src_buffer,
PikaProgress *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 || PIKA_IS_PROGRESS (progress));
g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
g_return_if_fail (mask == NULL || GEGL_IS_BUFFER (mask));
node = pika_gegl_create_apply_opacity_node (mask,
mask_offset_x,
mask_offset_y,
opacity);
pika_gegl_apply_operation (src_buffer, progress, undo_desc,
node, dest_buffer, NULL, FALSE);
g_object_unref (node);
}
void
pika_gegl_apply_scale (GeglBuffer *src_buffer,
PikaProgress *progress,
const gchar *undo_desc,
GeglBuffer *dest_buffer,
PikaInterpolationType interpolation_type,
gdouble x,
gdouble y)
{
GeglNode *node;
g_return_if_fail (GEGL_IS_BUFFER (src_buffer));
g_return_if_fail (progress == NULL || PIKA_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);
pika_gegl_apply_operation (src_buffer, progress, undo_desc,
node, dest_buffer, NULL, FALSE);
g_object_unref (node);
}
void
pika_gegl_apply_set_alpha (GeglBuffer *src_buffer,
PikaProgress *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 || PIKA_IS_PROGRESS (progress));
g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
node = gegl_node_new_child (NULL,
"operation", "pika:set-alpha",
"value", value,
NULL);
pika_gegl_apply_operation (src_buffer, progress, undo_desc,
node, dest_buffer, NULL, FALSE);
g_object_unref (node);
}
void
pika_gegl_apply_threshold (GeglBuffer *src_buffer,
PikaProgress *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 || PIKA_IS_PROGRESS (progress));
g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
node = gegl_node_new_child (NULL,
"operation", "gegl:threshold",
"value", value,
NULL);
pika_gegl_apply_operation (src_buffer, progress, undo_desc,
node, dest_buffer, NULL, FALSE);
g_object_unref (node);
}
void
pika_gegl_apply_transform (GeglBuffer *src_buffer,
PikaProgress *progress,
const gchar *undo_desc,
GeglBuffer *dest_buffer,
PikaInterpolationType interpolation_type,
PikaMatrix3 *transform)
{
GeglNode *node;
g_return_if_fail (GEGL_IS_BUFFER (src_buffer));
g_return_if_fail (progress == NULL || PIKA_IS_PROGRESS (progress));
g_return_if_fail (GEGL_IS_BUFFER (dest_buffer));
node = gegl_node_new_child (NULL,
"operation", "gegl:transform",
"near-z", PIKA_TRANSFORM_NEAR_Z,
"sampler", interpolation_type,
NULL);
pika_gegl_node_set_matrix (node, transform);
pika_gegl_apply_operation (src_buffer, progress, undo_desc,
node, dest_buffer, NULL, FALSE);
g_object_unref (node);
}
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