TileManager *
gimp_buffer_to_tiles (GeglBuffer *buffer)
{
const Babl *format = gegl_buffer_get_format (buffer);
TileManager *new_tiles = NULL;
GeglNode *source = NULL;
GeglNode *sink = NULL;
g_return_val_if_fail (buffer != NULL, NULL);
/* Setup and process the graph */
new_tiles = tile_manager_new (gegl_buffer_get_width (buffer),
gegl_buffer_get_height (buffer),
gimp_babl_format_to_legacy_bpp (format));
source = gegl_node_new_child (NULL,
"operation", "gegl:buffer-source",
"buffer", buffer,
NULL);
sink = gegl_node_new_child (NULL,
"operation", "gimp:tilemanager-sink",
"tile-manager", new_tiles,
NULL);
gegl_node_link_many (source, sink, NULL);
gegl_node_process (sink);
/* Clenaup */
g_object_unref (sink);
g_object_unref (source);
return new_tiles;
}
GimpBuffer *
gimp_buffer_new_from_pixbuf (GdkPixbuf *pixbuf,
const gchar *name)
{
TileManager *tiles;
guchar *pixels;
PixelRegion destPR;
gint width;
gint height;
gint rowstride;
gint channels;
gint y;
g_return_val_if_fail (GDK_IS_PIXBUF (pixbuf), NULL);
g_return_val_if_fail (name != NULL, NULL);
width = gdk_pixbuf_get_width (pixbuf);
height = gdk_pixbuf_get_height (pixbuf);
rowstride = gdk_pixbuf_get_rowstride (pixbuf);
channels = gdk_pixbuf_get_n_channels (pixbuf);
tiles = tile_manager_new (width, height, channels);
pixel_region_init (&destPR, tiles, 0, 0, width, height, TRUE);
for (y = 0, pixels = gdk_pixbuf_get_pixels (pixbuf);
y < height;
y++, pixels += rowstride)
{
pixel_region_set_row (&destPR, 0, y, width, pixels);
}
return gimp_buffer_new (tiles, name, FALSE);
}
/**
* tile_pyramid_new:
* @type: type of pixel data stored in the pyramid
* @width: bottom level width
* @height: bottom level height
*
* Creates a new #TilePyramid, managing a set of tile-managers where
* each level is a sized-down version of the level below.
*
* This only works correctly if you set a validate procedure using
* tile_pyramid_set_validate_proc() and invalidate areas. With some
* small changes, it could be made to work for non-validating tile
* managers also. But currently only the projection uses it.
*
* Only the bottom-most tile-manager is allocated at this point. Upper
* levels are created only if they are requested.
*
* Return value: a newly allocate #TilePyramid
**/
TilePyramid *
tile_pyramid_new (GimpImageType type,
gint width,
gint height)
{
TilePyramid *pyramid;
g_return_val_if_fail (width > 0, NULL);
g_return_val_if_fail (height > 0, NULL);
pyramid = g_slice_new0 (TilePyramid);
pyramid->type = type;
pyramid->width = width;
pyramid->height = height;
switch (type)
{
case GIMP_GRAY_IMAGE:
pyramid->bytes = 1;
break;
case GIMP_GRAYA_IMAGE:
pyramid->bytes = 2;
break;
case GIMP_RGB_IMAGE:
pyramid->bytes = 3;
break;
case GIMP_RGBA_IMAGE:
pyramid->bytes = 4;
break;
case GIMP_INDEXED_IMAGE:
case GIMP_INDEXEDA_IMAGE:
g_assert_not_reached ();
break;
}
pyramid->tiles[0] = tile_manager_new (width, height, pyramid->bytes);
return pyramid;
}
void
floating_sel_attach (GimpLayer *layer,
GimpDrawable *drawable)
{
GimpImage *image;
GimpLayer *floating_sel;
g_return_if_fail (GIMP_IS_LAYER (layer));
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)));
g_return_if_fail (drawable != GIMP_DRAWABLE (layer));
g_return_if_fail (gimp_item_get_image (GIMP_ITEM (layer)) ==
gimp_item_get_image (GIMP_ITEM (drawable)));
image = gimp_item_get_image (GIMP_ITEM (drawable));
floating_sel = gimp_image_floating_sel (image);
/* If there is already a floating selection, anchor it */
if (floating_sel)
{
floating_sel_anchor (floating_sel);
/* if we were pasting to the old floating selection, paste now
* to the drawable
*/
if (drawable == (GimpDrawable *) floating_sel)
drawable = gimp_image_get_active_drawable (image);
}
/* set the drawable and allocate a backing store */
gimp_layer_set_lock_alpha (layer, TRUE, FALSE);
layer->fs.drawable = drawable;
layer->fs.backing_store = tile_manager_new (GIMP_ITEM (layer)->width,
GIMP_ITEM (layer)->height,
gimp_drawable_bytes (drawable));
/* add the layer to the image */
gimp_image_add_layer (image, layer, 0);
/* store the affected area from the drawable in the backing store */
floating_sel_rigor (layer, TRUE);
}
GimpBuffer *
gimp_buffer_new (TileManager *tiles,
const gchar *name,
gboolean copy_pixels)
{
GimpBuffer *buffer;
gint width, height;
g_return_val_if_fail (tiles != NULL, NULL);
g_return_val_if_fail (name != NULL, NULL);
width = tile_manager_width (tiles);
height = tile_manager_height (tiles);
buffer = g_object_new (GIMP_TYPE_BUFFER,
"name", name,
NULL);
if (copy_pixels)
{
PixelRegion srcPR, destPR;
buffer->tiles = tile_manager_new (width, height,
tile_manager_bpp (tiles));
pixel_region_init (&srcPR, tiles, 0, 0, width, height, FALSE);
pixel_region_init (&destPR, buffer->tiles, 0, 0, width, height, TRUE);
copy_region (&srcPR, &destPR);
}
else
{
buffer->tiles = tiles;
}
return buffer;
}
/* This function make sure that levels are allocated up to the level
* it returns. The return value may be smaller than the level that
* was actually requested.
*/
static gint
tile_pyramid_alloc_levels (TilePyramid *pyramid,
gint top_level)
{
gint level;
top_level = MIN (top_level, PYRAMID_MAX_LEVELS - 1);
if (top_level <= pyramid->top_level)
return top_level;
for (level = pyramid->top_level + 1; level <= top_level; level++)
{
gint width = pyramid->width >> level;
gint height = pyramid->height >> level;
if (width == 0 || height == 0)
return pyramid->top_level;
/* There is no use having levels that have the same number of
* tiles as the parent level.
*/
if (width <= TILE_WIDTH / 2 && height <= TILE_HEIGHT / 2)
return pyramid->top_level;
pyramid->top_level = level;
pyramid->tiles[level] = tile_manager_new (width, height, pyramid->bytes);
/* Use the level below to validate tiles. */
tile_manager_set_validate_proc (pyramid->tiles[level],
(TileValidateProc) tile_pyramid_validate_tile,
pyramid->tiles[level - 1]);
}
return pyramid->top_level;
}
void
gimp_drawable_real_apply_region (GimpDrawable *drawable,
PixelRegion *src2PR,
gboolean push_undo,
const gchar *undo_desc,
gdouble opacity,
GimpLayerModeEffects mode,
TileManager *src1_tiles,
PixelRegion *destPR,
gint x,
gint y)
{
GimpItem *item = GIMP_ITEM (drawable);
GimpImage *image = gimp_item_get_image (item);
GimpChannel *mask = gimp_image_get_mask (image);
gint x1, y1, x2, y2;
gint offset_x, offset_y;
PixelRegion src1PR, my_destPR;
CombinationMode operation;
gboolean active_components[MAX_CHANNELS];
/* don't apply the mask to itself and don't apply an empty mask */
if (GIMP_DRAWABLE (mask) == drawable || gimp_channel_is_empty (mask))
mask = NULL;
/* configure the active channel array */
gimp_drawable_get_active_components (drawable, active_components);
/* determine what sort of operation is being attempted and
* if it's actually legal...
*/
operation = gimp_image_get_combination_mode (gimp_drawable_type (drawable),
src2PR->bytes);
if (operation == -1)
{
g_warning ("%s: illegal parameters.", G_STRFUNC);
return;
}
/* get the layer offsets */
gimp_item_get_offset (item, &offset_x, &offset_y);
/* make sure the image application coordinates are within drawable bounds */
x1 = CLAMP (x, 0, gimp_item_get_width (item));
y1 = CLAMP (y, 0, gimp_item_get_height (item));
x2 = CLAMP (x + src2PR->w, 0, gimp_item_get_width (item));
y2 = CLAMP (y + src2PR->h, 0, gimp_item_get_height (item));
if (mask)
{
GimpItem *mask_item = GIMP_ITEM (mask);
/* make sure coordinates are in mask bounds ...
* we need to add the layer offset to transform coords
* into the mask coordinate system
*/
x1 = CLAMP (x1, -offset_x, gimp_item_get_width (mask_item) - offset_x);
y1 = CLAMP (y1, -offset_y, gimp_item_get_height (mask_item) - offset_y);
x2 = CLAMP (x2, -offset_x, gimp_item_get_width (mask_item) - offset_x);
y2 = CLAMP (y2, -offset_y, gimp_item_get_height (mask_item) - offset_y);
}
/* If the calling procedure specified an undo step... */
if (push_undo)
{
GimpDrawableUndo *undo;
gimp_drawable_push_undo (drawable, undo_desc,
x1, y1,
x2 - x1, y2 - y1,
NULL, FALSE);
undo = GIMP_DRAWABLE_UNDO (gimp_image_undo_get_fadeable (image));
if (undo)
{
PixelRegion tmp_srcPR;
PixelRegion tmp_destPR;
undo->paint_mode = mode;
undo->opacity = opacity;
undo->src2_tiles = tile_manager_new (x2 - x1, y2 - y1,
src2PR->bytes);
tmp_srcPR = *src2PR;
pixel_region_resize (&tmp_srcPR,
src2PR->x + (x1 - x), src2PR->y + (y1 - y),
x2 - x1, y2 - y1);
pixel_region_init (&tmp_destPR, undo->src2_tiles,
0, 0,
x2 - x1, y2 - y1, TRUE);
copy_region (&tmp_srcPR, &tmp_destPR);
}
}
/* configure the pixel regions */
/* check if an alternative to using the drawable's data as src1 was
* provided...
*/
if (src1_tiles)
{
pixel_region_init (&src1PR, src1_tiles,
x1, y1, x2 - x1, y2 - y1,
FALSE);
}
else
{
pixel_region_init (&src1PR, gimp_drawable_get_tiles (drawable),
x1, y1, x2 - x1, y2 - y1,
FALSE);
}
/* check if an alternative to using the drawable's data as dest was
* provided...
*/
if (!destPR)
{
pixel_region_init (&my_destPR, gimp_drawable_get_tiles (drawable),
x1, y1, x2 - x1, y2 - y1,
TRUE);
destPR = &my_destPR;
}
pixel_region_resize (src2PR,
src2PR->x + (x1 - x), src2PR->y + (y1 - y),
x2 - x1, y2 - y1);
if (mask)
{
PixelRegion maskPR;
pixel_region_init (&maskPR,
gimp_drawable_get_tiles (GIMP_DRAWABLE (mask)),
x1 + offset_x,
y1 + offset_y,
x2 - x1, y2 - y1,
FALSE);
combine_regions (&src1PR, src2PR, destPR, &maskPR, NULL,
opacity * 255.999,
mode,
active_components,
operation);
}
else
{
combine_regions (&src1PR, src2PR, destPR, NULL, NULL,
opacity * 255.999,
mode,
active_components,
operation);
}
}
void
gimp_drawable_bucket_fill_full (GimpDrawable *drawable,
GimpBucketFillMode fill_mode,
gint paint_mode,
gdouble opacity,
gboolean do_seed_fill,
gboolean fill_transparent,
GimpSelectCriterion fill_criterion,
gdouble threshold,
gboolean sample_merged,
gdouble x,
gdouble y,
const GimpRGB *color,
GimpPattern *pattern)
{
GimpImage *image;
TileManager *buf_tiles;
PixelRegion bufPR, maskPR;
GimpChannel *mask = NULL;
gint bytes;
gint x1, y1, x2, y2;
guchar col[MAX_CHANNELS];
TempBuf *pat_buf = NULL;
gboolean new_buf = FALSE;
gboolean selection;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)));
g_return_if_fail (fill_mode != GIMP_PATTERN_BUCKET_FILL ||
GIMP_IS_PATTERN (pattern));
g_return_if_fail (fill_mode == GIMP_PATTERN_BUCKET_FILL ||
color != NULL);
image = gimp_item_get_image (GIMP_ITEM (drawable));
bytes = gimp_drawable_bytes (drawable);
selection = gimp_item_mask_bounds (GIMP_ITEM (drawable), &x1, &y1, &x2, &y2);
if ((x1 == x2) || (y1 == y2))
return;
if (fill_mode == GIMP_FG_BUCKET_FILL ||
fill_mode == GIMP_BG_BUCKET_FILL)
{
guchar tmp_col[MAX_CHANNELS];
gimp_rgb_get_uchar (color,
&tmp_col[RED],
&tmp_col[GREEN],
&tmp_col[BLUE]);
gimp_image_transform_color (image, gimp_drawable_type (drawable), col,
GIMP_RGB, tmp_col);
col[gimp_drawable_bytes_with_alpha (drawable) - 1] = OPAQUE_OPACITY;
}
else if (fill_mode == GIMP_PATTERN_BUCKET_FILL)
{
pat_buf = gimp_image_transform_temp_buf (image,
gimp_drawable_type (drawable),
pattern->mask, &new_buf);
}
else
{
g_warning ("%s: invalid fill_mode passed", G_STRFUNC);
return;
}
gimp_set_busy (image->gimp);
/* Do a seed bucket fill...To do this, calculate a new
* contiguous region. If there is a selection, calculate the
* intersection of this region with the existing selection.
*/
if (do_seed_fill)
{
mask = gimp_image_contiguous_region_by_seed (image, drawable,
sample_merged,
TRUE,
(gint) threshold,
fill_transparent,
fill_criterion,
(gint) x,
(gint) y);
if (selection)
{
gint off_x = 0;
gint off_y = 0;
if (! sample_merged)
gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
gimp_channel_combine_mask (mask, gimp_image_get_mask (image),
GIMP_CHANNEL_OP_INTERSECT,
-off_x, -off_y);
}
gimp_channel_bounds (mask, &x1, &y1, &x2, &y2);
/* make sure we handle the mask correctly if it was sample-merged */
if (sample_merged)
{
GimpItem *item;
gint off_x, off_y;
item = GIMP_ITEM (drawable);
/* Limit the channel bounds to the drawable's extents */
gimp_item_get_offset (item, &off_x, &off_y);
x1 = CLAMP (x1, off_x, (off_x + gimp_item_get_width (item)));
y1 = CLAMP (y1, off_y, (off_y + gimp_item_get_height (item)));
x2 = CLAMP (x2, off_x, (off_x + gimp_item_get_width (item)));
y2 = CLAMP (y2, off_y, (off_y + gimp_item_get_height (item)));
pixel_region_init (&maskPR,
gimp_drawable_get_tiles (GIMP_DRAWABLE (mask)),
x1, y1, (x2 - x1), (y2 - y1), TRUE);
/* translate mask bounds to drawable coords */
x1 -= off_x;
y1 -= off_y;
x2 -= off_x;
y2 -= off_y;
}
else
{
pixel_region_init (&maskPR,
gimp_drawable_get_tiles (GIMP_DRAWABLE (mask)),
x1, y1, (x2 - x1), (y2 - y1), TRUE);
}
/* if the image doesn't have an alpha channel, make sure that
* the buf_tiles have. We need the alpha channel to fill with
* the region calculated above
*/
if (! gimp_drawable_has_alpha (drawable))
bytes++;
}
else if (fill_mode == GIMP_PATTERN_BUCKET_FILL &&
(pat_buf->bytes == 2 || pat_buf->bytes == 4))
{
/* If pattern being applied has an alpha channel, add one to the
* buf_tiles.
*/
if (! gimp_drawable_has_alpha (drawable))
bytes++;
}
buf_tiles = tile_manager_new ((x2 - x1), (y2 - y1), bytes);
pixel_region_init (&bufPR, buf_tiles, 0, 0, (x2 - x1), (y2 - y1), TRUE);
switch (fill_mode)
{
case GIMP_FG_BUCKET_FILL:
case GIMP_BG_BUCKET_FILL:
if (mask)
color_region_mask (&bufPR, &maskPR, col);
else
color_region (&bufPR, col);
break;
case GIMP_PATTERN_BUCKET_FILL:
if (mask)
pattern_region (&bufPR, &maskPR, pat_buf, x1, y1);
else
pattern_region (&bufPR, NULL, pat_buf, x1, y1);
break;
}
/* Apply it to the image */
pixel_region_init (&bufPR, buf_tiles, 0, 0, (x2 - x1), (y2 - y1), FALSE);
gimp_drawable_apply_region (drawable, &bufPR,
TRUE, C_("undo-type", "Bucket Fill"),
opacity, paint_mode,
NULL, NULL, x1, y1);
tile_manager_unref (buf_tiles);
/* update the image */
gimp_drawable_update (drawable, x1, y1, x2 - x1, y2 - y1);
/* free the mask */
if (mask)
g_object_unref (mask);
if (new_buf)
temp_buf_free (pat_buf);
gimp_unset_busy (image->gimp);
}
static gboolean
gimp_text_layer_render (GimpTextLayer *layer)
{
GimpDrawable *drawable;
GimpItem *item;
GimpImage *image;
GimpTextLayout *layout;
gdouble xres;
gdouble yres;
gint width;
gint height;
if (! layer->text)
return FALSE;
drawable = GIMP_DRAWABLE (layer);
item = GIMP_ITEM (layer);
image = gimp_item_get_image (item);
if (gimp_container_is_empty (image->gimp->fonts))
{
gimp_message_literal (image->gimp, NULL, GIMP_MESSAGE_ERROR,
_("Due to lack of any fonts, "
"text functionality is not available."));
return FALSE;
}
gimp_image_get_resolution (image, &xres, &yres);
layout = gimp_text_layout_new (layer->text, xres, yres);
g_object_freeze_notify (G_OBJECT (drawable));
if (gimp_text_layout_get_size (layout, &width, &height) &&
(width != gimp_item_get_width (item) ||
height != gimp_item_get_height (item)))
{
TileManager *new_tiles = tile_manager_new (width, height,
gimp_drawable_bytes (drawable));
gimp_drawable_set_tiles (drawable, FALSE, NULL, new_tiles,
gimp_drawable_type (drawable));
tile_manager_unref (new_tiles);
if (gimp_layer_get_mask (GIMP_LAYER (layer)))
{
GimpLayerMask *mask = gimp_layer_get_mask (GIMP_LAYER (layer));
static GimpContext *unused_eek = NULL;
if (! unused_eek)
unused_eek = gimp_context_new (image->gimp, "eek", NULL);
gimp_item_resize (GIMP_ITEM (mask), unused_eek, width, height, 0, 0);
}
}
if (layer->auto_rename)
{
GimpItem *item = GIMP_ITEM (layer);
gchar *name = NULL;
if (layer->text->text)
{
name = gimp_utf8_strtrim (layer->text->text, 30);
}
else if (layer->text->markup)
{
gchar *tmp = gimp_markup_extract_text (layer->text->markup);
name = gimp_utf8_strtrim (tmp, 30);
g_free (tmp);
}
if (! name)
name = g_strdup (_("Empty Text Layer"));
if (gimp_item_is_attached (item))
{
gimp_item_tree_rename_item (gimp_item_get_tree (item), item,
name, FALSE, NULL);
g_free (name);
}
else
{
gimp_object_take_name (GIMP_OBJECT (layer), name);
}
}
gimp_text_layer_render_layout (layer, layout);
g_object_unref (layout);
g_object_thaw_notify (G_OBJECT (drawable));
return (width > 0 && height > 0);
}
static void
gimp_drawable_stroke_scan_convert (GimpDrawable *drawable,
GimpStrokeOptions *options,
GimpScanConvert *scan_convert)
{
GimpContext *context = GIMP_CONTEXT (options);
GimpImage *image;
gdouble width;
TileManager *base;
TileManager *mask;
gint x, y, w, h;
gint bytes;
gint off_x, off_y;
guchar bg[1] = { 0, };
PixelRegion maskPR, basePR;
image = gimp_item_get_image (GIMP_ITEM (drawable));
/* must call gimp_channel_is_empty() instead of relying on
* gimp_drawable_mask_intersect() because the selection pretends to
* be empty while it is being stroked, to prevent masking itself.
*/
if (gimp_channel_is_empty (gimp_image_get_mask (image)))
{
x = 0;
y = 0;
w = gimp_item_width (GIMP_ITEM (drawable));
h = gimp_item_height (GIMP_ITEM (drawable));
}
else if (! gimp_drawable_mask_intersect (drawable, &x, &y, &w, &h))
{
return;
}
gimp_item_offsets (GIMP_ITEM (drawable), &off_x, &off_y);
width = options->width;
if (options->unit != GIMP_UNIT_PIXEL)
{
gimp_scan_convert_set_pixel_ratio (scan_convert,
image->yresolution /
image->xresolution);
width *= (image->yresolution /
_gimp_unit_get_factor (image->gimp, options->unit));
}
gimp_scan_convert_stroke (scan_convert, width,
options->join_style,
options->cap_style,
options->miter_limit,
options->dash_offset,
options->dash_info);
/* fill a 1-bpp Tilemanager with black, this will describe the shape
* of the stroke.
*/
mask = tile_manager_new (w, h, 1);
pixel_region_init (&maskPR, mask, 0, 0, w, h, TRUE);
color_region (&maskPR, bg);
/* render the stroke into it */
gimp_scan_convert_render (scan_convert, mask,
x + off_x, y + off_y,
options->antialias);
bytes = gimp_drawable_bytes_with_alpha (drawable);
base = tile_manager_new (w, h, bytes);
pixel_region_init (&basePR, base, 0, 0, w, h, TRUE);
pixel_region_init (&maskPR, mask, 0, 0, w, h, FALSE);
switch (options->style)
{
case GIMP_STROKE_STYLE_SOLID:
{
guchar tmp_col[MAX_CHANNELS] = { 0, };
guchar col[MAX_CHANNELS] = { 0, };
gimp_rgb_get_uchar (&context->foreground,
&tmp_col[RED_PIX],
&tmp_col[GREEN_PIX],
&tmp_col[BLUE_PIX]);
gimp_image_transform_color (image, gimp_drawable_type (drawable), col,
GIMP_RGB, tmp_col);
col[bytes - 1] = OPAQUE_OPACITY;
color_region_mask (&basePR, &maskPR, col);
}
break;
case GIMP_STROKE_STYLE_PATTERN:
{
GimpPattern *pattern;
TempBuf *pat_buf;
gboolean new_buf;
pattern = gimp_context_get_pattern (context);
pat_buf = gimp_image_transform_temp_buf (image,
gimp_drawable_type (drawable),
pattern->mask, &new_buf);
pattern_region (&basePR, &maskPR, pat_buf, x, y);
if (new_buf)
temp_buf_free (pat_buf);
}
break;
}
/* Apply to drawable */
pixel_region_init (&basePR, base, 0, 0, w, h, FALSE);
gimp_drawable_apply_region (drawable, &basePR,
TRUE, _("Render Stroke"),
gimp_context_get_opacity (context),
gimp_context_get_paint_mode (context),
NULL, x, y);
tile_manager_unref (mask);
tile_manager_unref (base);
gimp_drawable_update (drawable, x, y, w, h);
}
gboolean
gimp_paint_core_start (GimpPaintCore *core,
GimpDrawable *drawable,
GimpPaintOptions *paint_options,
const GimpCoords *coords,
GError **error)
{
GimpItem *item;
g_return_val_if_fail (GIMP_IS_PAINT_CORE (core), FALSE);
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
g_return_val_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)), FALSE);
g_return_val_if_fail (GIMP_IS_PAINT_OPTIONS (paint_options), FALSE);
g_return_val_if_fail (coords != NULL, FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
item = GIMP_ITEM (drawable);
if (core->stroke_buffer)
{
g_array_free (core->stroke_buffer, TRUE);
core->stroke_buffer = NULL;
}
core->stroke_buffer = g_array_sized_new (TRUE, TRUE,
sizeof (GimpCoords),
STROKE_BUFFER_INIT_SIZE);
core->cur_coords = *coords;
if (! GIMP_PAINT_CORE_GET_CLASS (core)->start (core, drawable,
paint_options,
coords, error))
{
return FALSE;
}
/* Allocate the undo structure */
if (core->undo_tiles)
tile_manager_unref (core->undo_tiles);
core->undo_tiles = tile_manager_new (gimp_item_get_width (item),
gimp_item_get_height (item),
gimp_drawable_bytes (drawable));
/* Allocate the saved proj structure */
if (core->saved_proj_tiles)
tile_manager_unref (core->saved_proj_tiles);
core->saved_proj_tiles = NULL;
if (core->use_saved_proj)
{
GimpImage *image = gimp_item_get_image (item);
GimpPickable *pickable = GIMP_PICKABLE (gimp_image_get_projection (image));
TileManager *tiles = gimp_pickable_get_tiles (pickable);
core->saved_proj_tiles = tile_manager_new (tile_manager_width (tiles),
tile_manager_height (tiles),
tile_manager_bpp (tiles));
}
/* Allocate the canvas blocks structure */
if (core->canvas_tiles)
tile_manager_unref (core->canvas_tiles);
core->canvas_tiles = tile_manager_new (gimp_item_get_width (item),
gimp_item_get_height (item),
1);
/* Get the initial undo extents */
core->x1 = core->x2 = core->cur_coords.x;
core->y1 = core->y2 = core->cur_coords.y;
core->last_paint.x = -1e6;
core->last_paint.y = -1e6;
/* Freeze the drawable preview so that it isn't constantly updated. */
gimp_viewable_preview_freeze (GIMP_VIEWABLE (drawable));
return TRUE;
}
void
floating_sel_store (GimpLayer *layer,
gint x,
gint y,
gint w,
gint h)
{
PixelRegion srcPR, destPR;
gint offx, offy;
gint x1, y1, x2, y2;
g_return_if_fail (GIMP_IS_LAYER (layer));
g_return_if_fail (gimp_layer_is_floating_sel (layer));
/* Check the backing store & make sure it has the correct dimensions */
if ((tile_manager_width (layer->fs.backing_store) !=
gimp_item_width (GIMP_ITEM(layer))) ||
(tile_manager_height (layer->fs.backing_store) !=
gimp_item_height (GIMP_ITEM(layer))) ||
(tile_manager_bpp (layer->fs.backing_store) !=
gimp_drawable_bytes (layer->fs.drawable)))
{
/* free the backing store and allocate anew */
tile_manager_unref (layer->fs.backing_store);
layer->fs.backing_store =
tile_manager_new (GIMP_ITEM (layer)->width,
GIMP_ITEM (layer)->height,
gimp_drawable_bytes (layer->fs.drawable));
}
/* What this function does is save the specified area of the
* drawable that this floating selection obscures. We do this so
* that it will be possible to subsequently restore the drawable's area
*/
gimp_item_offsets (GIMP_ITEM (layer->fs.drawable), &offx, &offy);
/* Find the minimum area we need to uncover -- in image space */
x1 = MAX (GIMP_ITEM (layer)->offset_x, offx);
y1 = MAX (GIMP_ITEM (layer)->offset_y, offy);
x2 = MIN (GIMP_ITEM (layer)->offset_x + GIMP_ITEM (layer)->width,
offx + gimp_item_width (GIMP_ITEM (layer->fs.drawable)));
y2 = MIN (GIMP_ITEM (layer)->offset_y + GIMP_ITEM (layer)->height,
offy + gimp_item_height (GIMP_ITEM (layer->fs.drawable)));
x1 = CLAMP (x, x1, x2);
y1 = CLAMP (y, y1, y2);
x2 = CLAMP (x + w, x1, x2);
y2 = CLAMP (y + h, y1, y2);
if ((x2 - x1) > 0 && (y2 - y1) > 0)
{
/* Copy the area from the drawable to the backing store */
pixel_region_init (&srcPR, gimp_drawable_get_tiles (layer->fs.drawable),
(x1 - offx), (y1 - offy), (x2 - x1), (y2 - y1), FALSE);
pixel_region_init (&destPR, layer->fs.backing_store,
(x1 - GIMP_ITEM (layer)->offset_x),
(y1 - GIMP_ITEM (layer)->offset_y),
(x2 - x1), (y2 - y1), TRUE);
copy_region (&srcPR, &destPR);
}
}
static gboolean
gimp_perspective_clone_get_source (GimpSourceCore *source_core,
GimpDrawable *drawable,
GimpPaintOptions *paint_options,
GimpPickable *src_pickable,
gint src_offset_x,
gint src_offset_y,
TempBuf *paint_area,
gint *paint_area_offset_x,
gint *paint_area_offset_y,
gint *paint_area_width,
gint *paint_area_height,
PixelRegion *srcPR)
{
GimpPerspectiveClone *clone = GIMP_PERSPECTIVE_CLONE (source_core);
GimpPaintCore *paint_core = GIMP_PAINT_CORE (source_core);
GimpSourceOptions *options = GIMP_SOURCE_OPTIONS (paint_options);
GimpImage *src_image;
GimpImage *image;
GimpImageType src_type;
gint x1d, y1d, x2d, y2d;
gdouble x1s, y1s, x2s, y2s, x3s, y3s, x4s, y4s;
gint xmin, ymin, xmax, ymax;
TileManager *src_tiles;
TileManager *orig_tiles;
PixelRegion origPR;
PixelRegion destPR;
GimpMatrix3 matrix;
gint bytes;
src_image = gimp_pickable_get_image (src_pickable);
image = gimp_item_get_image (GIMP_ITEM (drawable));
src_type = gimp_pickable_get_image_type (src_pickable);
src_tiles = gimp_pickable_get_tiles (src_pickable);
/* Destination coordinates that will be painted */
x1d = paint_area->x;
y1d = paint_area->y;
x2d = paint_area->x + paint_area->width;
y2d = paint_area->y + paint_area->height;
/* Boundary box for source pixels to copy: Convert all the vertex of
* the box to paint in destination area to its correspondent in
* source area bearing in mind perspective
*/
gimp_perspective_clone_get_source_point (clone, x1d, y1d, &x1s, &y1s);
gimp_perspective_clone_get_source_point (clone, x1d, y2d, &x2s, &y2s);
gimp_perspective_clone_get_source_point (clone, x2d, y1d, &x3s, &y3s);
gimp_perspective_clone_get_source_point (clone, x2d, y2d, &x4s, &y4s);
xmin = floor (MIN4 (x1s, x2s, x3s, x4s));
ymin = floor (MIN4 (y1s, y2s, y3s, y4s));
xmax = ceil (MAX4 (x1s, x2s, x3s, x4s));
ymax = ceil (MAX4 (y1s, y2s, y3s, y4s));
xmin = CLAMP (xmin - 1, 0, tile_manager_width (src_tiles));
ymin = CLAMP (ymin - 1, 0, tile_manager_height (src_tiles));
xmax = CLAMP (xmax + 1, 0, tile_manager_width (src_tiles));
ymax = CLAMP (ymax + 1, 0, tile_manager_height (src_tiles));
/* if the source area is completely out of the image */
if (!(xmax - xmin) || !(ymax - ymin))
return FALSE;
/* If the source image is different from the destination,
* then we should copy straight from the source image
* to the canvas.
* Otherwise, we need a call to get_orig_image to make sure
* we get a copy of the unblemished (offset) image
*/
if (( options->sample_merged && (src_image != image)) ||
(! options->sample_merged && (source_core->src_drawable != drawable)))
{
pixel_region_init (&origPR, src_tiles,
xmin, ymin, xmax - xmin, ymax - ymin, FALSE);
}
else
{
TempBuf *orig;
/* get the original image */
if (options->sample_merged)
orig = gimp_paint_core_get_orig_proj (paint_core,
src_pickable,
xmin, ymin, xmax, ymax);
else
orig = gimp_paint_core_get_orig_image (paint_core,
GIMP_DRAWABLE (src_pickable),
xmin, ymin, xmax, ymax);
pixel_region_init_temp_buf (&origPR, orig,
0, 0, xmax - xmin, ymax - ymin);
}
/* copy the original image to a tile manager, adding alpha if needed */
bytes = GIMP_IMAGE_TYPE_BYTES (GIMP_IMAGE_TYPE_WITH_ALPHA (src_type));
orig_tiles = tile_manager_new (xmax - xmin, ymax - ymin, bytes);
tile_manager_set_offsets (orig_tiles, xmin, ymin);
pixel_region_init (&destPR, orig_tiles,
0, 0, xmax - xmin, ymax - ymin,
TRUE);
if (bytes > origPR.bytes)
add_alpha_region (&origPR, &destPR);
else
copy_region (&origPR, &destPR);
clone->src_area = temp_buf_resize (clone->src_area,
tile_manager_bpp (orig_tiles),
0, 0,
x2d - x1d, y2d - y1d);
pixel_region_init_temp_buf (&destPR, clone->src_area,
0, 0,
x2d - x1d, y2d - y1d);
gimp_perspective_clone_get_matrix (clone, &matrix);
gimp_transform_region (src_pickable,
GIMP_CONTEXT (paint_options),
orig_tiles,
&destPR,
x1d, y1d, x2d, y2d,
&matrix,
GIMP_INTERPOLATION_LINEAR, 0, NULL);
tile_manager_unref (orig_tiles);
pixel_region_init_temp_buf (srcPR, clone->src_area,
0, 0, x2d - x1d, y2d - y1d);
return TRUE;
}
