[gimp] app: improve gimpchannel-{combine,select}
- From: Ell <ell src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gimp] app: improve gimpchannel-{combine,select}
- Date: Wed, 20 Mar 2019 20:28:14 +0000 (UTC)
commit 8e77347cac1fa4e2ed70578cc2ac88bb4558ee06
Author: Ell <ell_se yahoo com>
Date: Wed Mar 20 15:30:35 2019 -0400
app: improve gimpchannel-{combine,select}
In gimpchannel-select, move some of the common functionality of the
various gimp_channel_select_foo() functions to gimpchannel-combine.
Furthermore, don't special-case CHANNEL_OP_INTERSECT, but rather
pass it over to gimpchannel-combine, which is now prepared to
handle it in all functions, as per the previous commits.
In gimpchannel-combine, factor out the common functionality of the
various gimp_channel_combine_foo() functions into a pair of
gimp_channel_combine_{start,end}() functions, which are called
before/after the actual gimp_gegl_mask_combine_foo() function,
respectively. In particular, these functions deal with calculating
the new channel bounds. Previously, the various
gimp_gegl_mask_combine_foo() functions would implicitly invalidate
the channel bounds (since commit
d0ae244fe85a502446fe9c7b82afdf1b89498966), rendering the bounds-
recalculation code ineffective. This avoids manually recalculating
the bounds in many cases, speeding up selection operations.
app/core/gimpchannel-combine.c | 443 ++++++++++++++++++++++++++++++++---------
app/core/gimpchannel-select.c | 64 ++----
2 files changed, 374 insertions(+), 133 deletions(-)
---
diff --git a/app/core/gimpchannel-combine.c b/app/core/gimpchannel-combine.c
index 69118242b7..93bc85b610 100644
--- a/app/core/gimpchannel-combine.c
+++ b/app/core/gimpchannel-combine.c
@@ -28,65 +28,359 @@
#include "core-types.h"
#include "gegl/gimp-gegl-mask-combine.h"
+#include "gegl/gimp-gegl-utils.h"
#include "gimpchannel.h"
#include "gimpchannel-combine.h"
-void
-gimp_channel_combine_rect (GimpChannel *mask,
- GimpChannelOps op,
- gint x,
- gint y,
- gint w,
- gint h)
+typedef struct
{
- GeglBuffer *buffer;
+ GeglRectangle rect;
- g_return_if_fail (GIMP_IS_CHANNEL (mask));
+ gboolean bounds_known;
+ gboolean empty;
+ GeglRectangle bounds;
+} GimpChannelCombineData;
- buffer = gimp_drawable_get_buffer (GIMP_DRAWABLE (mask));
- if (! gimp_gegl_mask_combine_rect (buffer, op, x, y, w, h))
+/* local function prototypes */
+
+static void gimp_channel_combine_clear (GimpChannel *mask,
+ const GeglRectangle *rect);
+static void gimp_channel_combine_clear_complement (GimpChannel *mask,
+ const GeglRectangle *rect);
+
+static gboolean gimp_channel_combine_start (GimpChannel *mask,
+ GimpChannelOps op,
+ const GeglRectangle *rect,
+ gboolean full_extent,
+ gboolean full_value,
+ GimpChannelCombineData *data);
+static void gimp_channel_combine_end (GimpChannel *mask,
+ GimpChannelCombineData *data);
+
+
+/* private functions */
+
+static void
+gimp_channel_combine_clear (GimpChannel *mask,
+ const GeglRectangle *rect)
+{
+ GeglBuffer *buffer;
+ GeglRectangle area;
+ GeglRectangle update_area;
+
+ if (mask->bounds_known && mask->empty)
return;
- gimp_rectangle_intersect (x, y, w, h,
- 0, 0,
- gimp_item_get_width (GIMP_ITEM (mask)),
- gimp_item_get_height (GIMP_ITEM (mask)),
- &x, &y, &w, &h);
+ buffer = gimp_drawable_get_buffer (GIMP_DRAWABLE (mask));
- /* Determine new boundary */
- if (mask->bounds_known && (op == GIMP_CHANNEL_OP_ADD) && ! mask->empty)
+ if (rect)
{
- if (x < mask->x1)
- mask->x1 = x;
- if (y < mask->y1)
- mask->y1 = y;
- if ((x + w) > mask->x2)
- mask->x2 = (x + w);
- if ((y + h) > mask->y2)
- mask->y2 = (y + h);
+ if (rect->width <= 0 || rect->height <= 0)
+ return;
+
+ if (mask->bounds_known)
+ {
+ if (! gegl_rectangle_intersect (&area,
+ GEGL_RECTANGLE (mask->x1,
+ mask->y1,
+ mask->x2 - mask->x1,
+ mask->y2 - mask->y1),
+ rect))
+ {
+ return;
+ }
+ }
+ else
+ {
+ area = *rect;
+ }
+
+ update_area = area;
}
- else if (op == GIMP_CHANNEL_OP_REPLACE || mask->empty)
+ else
{
- mask->empty = FALSE;
- mask->x1 = x;
- mask->y1 = y;
- mask->x2 = x + w;
- mask->y2 = y + h;
+ if (mask->bounds_known)
+ {
+ area.x = mask->x1;
+ area.y = mask->y1;
+ area.width = mask->x2 - mask->x1;
+ area.height = mask->y2 - mask->y1;
+ }
+ else
+ {
+ area.x = 0;
+ area.y = 0;
+ area.width = gimp_item_get_width (GIMP_ITEM (mask));
+ area.height = gimp_item_get_height (GIMP_ITEM (mask));
+ }
+
+ update_area = area;
+
+ gimp_gegl_rectangle_align_to_tile_grid (&area, &area, buffer);
}
- else
+
+ gegl_buffer_clear (buffer, &area);
+
+ gimp_drawable_update (GIMP_DRAWABLE (mask),
+ update_area.x, update_area.y,
+ update_area.width, update_area.height);
+}
+
+static void
+gimp_channel_combine_clear_complement (GimpChannel *mask,
+ const GeglRectangle *rect)
+{
+ gint width = gimp_item_get_width (GIMP_ITEM (mask));
+ gint height = gimp_item_get_height (GIMP_ITEM (mask));
+
+ gimp_channel_combine_clear (
+ mask,
+ GEGL_RECTANGLE (0,
+ 0,
+ width,
+ rect->y));
+
+ gimp_channel_combine_clear (
+ mask,
+ GEGL_RECTANGLE (0,
+ rect->y + rect->height,
+ width,
+ height - (rect->y + rect->height)));
+
+ gimp_channel_combine_clear (
+ mask,
+ GEGL_RECTANGLE (0,
+ rect->y,
+ rect->x,
+ rect->height));
+
+ gimp_channel_combine_clear (
+ mask,
+ GEGL_RECTANGLE (rect->x + rect->width,
+ rect->y,
+ width - (rect->x + rect->width),
+ rect->height));
+}
+
+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)
{
- mask->bounds_known = FALSE;
+ 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;
}
- mask->x1 = CLAMP (mask->x1, 0, gimp_item_get_width (GIMP_ITEM (mask)));
- mask->y1 = CLAMP (mask->y1, 0, gimp_item_get_height (GIMP_ITEM (mask)));
- mask->x2 = CLAMP (mask->x2, 0, gimp_item_get_width (GIMP_ITEM (mask)));
- mask->y2 = CLAMP (mask->y2, 0, gimp_item_get_height (GIMP_ITEM (mask)));
+ return TRUE;
+}
+
+static void
+gimp_channel_combine_end (GimpChannel *mask,
+ GimpChannelCombineData *data)
+{
+ GeglBuffer *buffer = gimp_drawable_get_buffer (GIMP_DRAWABLE (mask));
+
+ gegl_buffer_set_abyss (buffer, gegl_buffer_get_extent (buffer));
+
+ gegl_buffer_thaw_changed (buffer);
- gimp_drawable_update (GIMP_DRAWABLE (mask), x, y, w, h);
+ mask->bounds_known = data->bounds_known;
+
+ if (data->bounds_known)
+ {
+ mask->empty = data->empty;
+
+ if (data->empty)
+ {
+ mask->x1 = 0;
+ mask->y1 = 0;
+ mask->x2 = gimp_item_get_width (GIMP_ITEM (mask));
+ mask->y2 = gimp_item_get_height (GIMP_ITEM (mask));
+ }
+ else
+ {
+ mask->x1 = data->bounds.x;
+ mask->y1 = data->bounds.y;
+ mask->x2 = data->bounds.x + data->bounds.width;
+ mask->y2 = data->bounds.y + data->bounds.height;
+ }
+ }
+
+ gimp_drawable_update (GIMP_DRAWABLE (mask),
+ data->rect.x, data->rect.y,
+ data->rect.width, data->rect.height);
+}
+
+
+/* public functions */
+
+void
+gimp_channel_combine_rect (GimpChannel *mask,
+ GimpChannelOps op,
+ gint x,
+ gint y,
+ gint w,
+ gint h)
+{
+ GimpChannelCombineData data;
+
+ g_return_if_fail (GIMP_IS_CHANNEL (mask));
+
+ if (gimp_channel_combine_start (mask, op, GEGL_RECTANGLE (x, y, w, h),
+ TRUE, TRUE, &data))
+ {
+ GeglBuffer *buffer = gimp_drawable_get_buffer (GIMP_DRAWABLE (mask));
+
+ gimp_gegl_mask_combine_rect (buffer, op, x, y, w, h);
+ }
+
+ gimp_channel_combine_end (mask, &data);
}
void
@@ -113,46 +407,20 @@ gimp_channel_combine_ellipse_rect (GimpChannel *mask,
gdouble ry,
gboolean antialias)
{
- GeglBuffer *buffer;
+ GimpChannelCombineData data;
g_return_if_fail (GIMP_IS_CHANNEL (mask));
- g_return_if_fail (op != GIMP_CHANNEL_OP_INTERSECT);
-
- buffer = gimp_drawable_get_buffer (GIMP_DRAWABLE (mask));
- if (! gimp_gegl_mask_combine_ellipse_rect (buffer, op, x, y, w, h,
- rx, ry, antialias))
- return;
-
- gimp_rectangle_intersect (x, y, w, h,
- 0, 0,
- gimp_item_get_width (GIMP_ITEM (mask)),
- gimp_item_get_height (GIMP_ITEM (mask)),
- &x, &y, &w, &h);
-
- /* determine new boundary */
- if (mask->bounds_known && (op == GIMP_CHANNEL_OP_ADD) && ! mask->empty)
+ if (gimp_channel_combine_start (mask, op, GEGL_RECTANGLE (x, y, w, h),
+ TRUE, FALSE, &data))
{
- if (x < mask->x1) mask->x1 = x;
- if (y < mask->y1) mask->y1 = y;
+ GeglBuffer *buffer = gimp_drawable_get_buffer (GIMP_DRAWABLE (mask));
- if ((x + w) > mask->x2) mask->x2 = (x + w);
- if ((y + h) > mask->y2) mask->y2 = (y + h);
- }
- else if (op == GIMP_CHANNEL_OP_REPLACE || mask->empty)
- {
- mask->empty = FALSE;
- mask->x1 = x;
- mask->y1 = y;
- mask->x2 = x + w;
- mask->y2 = y + h;
- }
- else
- {
- mask->bounds_known = FALSE;
+ gimp_gegl_mask_combine_ellipse_rect (buffer, op, x, y, w, h,
+ rx, ry, antialias);
}
- gimp_drawable_update (GIMP_DRAWABLE (mask), x, y, w, h);
+ gimp_channel_combine_end (mask, &data);
}
void
@@ -180,27 +448,24 @@ gimp_channel_combine_buffer (GimpChannel *mask,
gint off_x,
gint off_y)
{
- GeglBuffer *buffer;
- gint x, y, w, h;
+ GimpChannelCombineData data;
g_return_if_fail (GIMP_IS_CHANNEL (mask));
g_return_if_fail (GEGL_IS_BUFFER (add_on_buffer));
- buffer = gimp_drawable_get_buffer (GIMP_DRAWABLE (mask));
-
- if (! gimp_gegl_mask_combine_buffer (buffer, add_on_buffer,
- op, off_x, off_y))
- return;
-
- gimp_rectangle_intersect (off_x, off_y,
- gegl_buffer_get_width (add_on_buffer),
- gegl_buffer_get_height (add_on_buffer),
- 0, 0,
- gimp_item_get_width (GIMP_ITEM (mask)),
- gimp_item_get_height (GIMP_ITEM (mask)),
- &x, &y, &w, &h);
+ if (gimp_channel_combine_start (mask, op,
+ GEGL_RECTANGLE (
+ off_x,
+ off_y,
+ gegl_buffer_get_width (add_on_buffer),
+ gegl_buffer_get_height (add_on_buffer)),
+ FALSE, FALSE, &data))
+ {
+ GeglBuffer *buffer = gimp_drawable_get_buffer (GIMP_DRAWABLE (mask));
- mask->bounds_known = FALSE;
+ gimp_gegl_mask_combine_buffer (buffer, add_on_buffer, op,
+ off_x, off_y);
+ }
- gimp_drawable_update (GIMP_DRAWABLE (mask), x, y, w, h);
+ gimp_channel_combine_end (mask, &data);
}
diff --git a/app/core/gimpchannel-select.c b/app/core/gimpchannel-select.c
index e0cfc27354..370511d75a 100644
--- a/app/core/gimpchannel-select.c
+++ b/app/core/gimpchannel-select.c
@@ -65,14 +65,10 @@ gimp_channel_select_rectangle (GimpChannel *channel,
if (push_undo)
gimp_channel_push_undo (channel, C_("undo-type", "Rectangle Select"));
- /* if applicable, replace the current selection */
- if (op == GIMP_CHANNEL_OP_REPLACE)
- gimp_channel_clear (channel, NULL, FALSE);
-
/* if feathering for rect, make a new mask with the
* rectangle and feather that with the old mask
*/
- if (feather || op == GIMP_CHANNEL_OP_INTERSECT)
+ if (feather)
{
GimpItem *item = GIMP_ITEM (channel);
GeglBuffer *add_on;
@@ -82,12 +78,11 @@ gimp_channel_select_rectangle (GimpChannel *channel,
gimp_item_get_height (item)),
babl_format ("Y float"));
- gimp_gegl_mask_combine_rect (add_on, GIMP_CHANNEL_OP_ADD, x, y, w, h);
+ gimp_gegl_mask_combine_rect (add_on, GIMP_CHANNEL_OP_REPLACE, x, y, w, h);
- if (feather)
- gimp_gegl_apply_feather (add_on, NULL, NULL, add_on, NULL,
- feather_radius_x,
- feather_radius_y);
+ gimp_gegl_apply_feather (add_on, NULL, NULL, add_on, NULL,
+ feather_radius_x,
+ feather_radius_y);
gimp_channel_combine_buffer (channel, add_on, op, 0, 0);
g_object_unref (add_on);
@@ -117,14 +112,10 @@ gimp_channel_select_ellipse (GimpChannel *channel,
if (push_undo)
gimp_channel_push_undo (channel, C_("undo-type", "Ellipse Select"));
- /* if applicable, replace the current selection */
- if (op == GIMP_CHANNEL_OP_REPLACE)
- gimp_channel_clear (channel, NULL, FALSE);
-
/* if feathering for rect, make a new mask with the
* rectangle and feather that with the old mask
*/
- if (feather || op == GIMP_CHANNEL_OP_INTERSECT)
+ if (feather)
{
GimpItem *item = GIMP_ITEM (channel);
GeglBuffer *add_on;
@@ -134,13 +125,12 @@ gimp_channel_select_ellipse (GimpChannel *channel,
gimp_item_get_height (item)),
babl_format ("Y float"));
- gimp_gegl_mask_combine_ellipse (add_on, GIMP_CHANNEL_OP_ADD,
+ gimp_gegl_mask_combine_ellipse (add_on, GIMP_CHANNEL_OP_REPLACE,
x, y, w, h, antialias);
- if (feather)
- gimp_gegl_apply_feather (add_on, NULL, NULL, add_on, NULL,
- feather_radius_x,
- feather_radius_y);
+ gimp_gegl_apply_feather (add_on, NULL, NULL, add_on, NULL,
+ feather_radius_x,
+ feather_radius_y);
gimp_channel_combine_buffer (channel, add_on, op, 0, 0);
g_object_unref (add_on);
@@ -172,14 +162,10 @@ gimp_channel_select_round_rect (GimpChannel *channel,
if (push_undo)
gimp_channel_push_undo (channel, C_("undo-type", "Rounded Rectangle Select"));
- /* if applicable, replace the current selection */
- if (op == GIMP_CHANNEL_OP_REPLACE)
- gimp_channel_clear (channel, NULL, FALSE);
-
/* if feathering for rect, make a new mask with the
* rectangle and feather that with the old mask
*/
- if (feather || op == GIMP_CHANNEL_OP_INTERSECT)
+ if (feather)
{
GimpItem *item = GIMP_ITEM (channel);
GeglBuffer *add_on;
@@ -189,15 +175,14 @@ gimp_channel_select_round_rect (GimpChannel *channel,
gimp_item_get_height (item)),
babl_format ("Y float"));
- gimp_gegl_mask_combine_ellipse_rect (add_on, GIMP_CHANNEL_OP_ADD,
+ gimp_gegl_mask_combine_ellipse_rect (add_on, GIMP_CHANNEL_OP_REPLACE,
x, y, w, h,
corner_radius_x, corner_radius_y,
antialias);
- if (feather)
- gimp_gegl_apply_feather (add_on, NULL, NULL, add_on, NULL,
- feather_radius_x,
- feather_radius_y);
+ gimp_gegl_apply_feather (add_on, NULL, NULL, add_on, NULL,
+ feather_radius_x,
+ feather_radius_y);
gimp_channel_combine_buffer (channel, add_on, op, 0, 0);
g_object_unref (add_on);
@@ -236,10 +221,6 @@ gimp_channel_select_scan_convert (GimpChannel *channel,
if (push_undo)
gimp_channel_push_undo (channel, undo_desc);
- /* if applicable, replace the current selection */
- if (op == GIMP_CHANNEL_OP_REPLACE)
- gimp_channel_clear (channel, NULL, FALSE);
-
item = GIMP_ITEM (channel);
add_on = gegl_buffer_new (GEGL_RECTANGLE (0, 0,
@@ -346,11 +327,7 @@ gimp_channel_select_buffer (GimpChannel *channel,
gimp_channel_push_undo (channel, undo_desc);
- /* if applicable, replace the current selection */
- if (op == GIMP_CHANNEL_OP_REPLACE)
- gimp_channel_clear (channel, NULL, FALSE);
-
- if (feather || op == GIMP_CHANNEL_OP_INTERSECT)
+ if (feather)
{
GimpItem *item = GIMP_ITEM (channel);
GeglBuffer *add_on2;
@@ -361,13 +338,12 @@ gimp_channel_select_buffer (GimpChannel *channel,
babl_format ("Y float"));
gimp_gegl_mask_combine_buffer (add_on2, add_on,
- GIMP_CHANNEL_OP_ADD,
+ GIMP_CHANNEL_OP_REPLACE,
offset_x, offset_y);
- if (feather)
- gimp_gegl_apply_feather (add_on2, NULL, NULL, add_on2, NULL,
- feather_radius_x,
- feather_radius_y);
+ gimp_gegl_apply_feather (add_on2, NULL, NULL, add_on2, NULL,
+ feather_radius_x,
+ feather_radius_y);
gimp_channel_combine_buffer (channel, add_on2, op, 0, 0);
g_object_unref (add_on2);
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