static void
gimp_clone_line_image (GimpImage *dest_image,
GimpImageType dest_type,
GimpImage *src_image,
GimpImageType src_type,
guchar *s,
guchar *d,
gint src_bytes,
gint dest_bytes,
gint width)
{
guchar rgba[MAX_CHANNELS];
gint alpha;
alpha = dest_bytes - 1;
while (width--)
{
gimp_image_get_color (src_image, src_type, s, rgba);
gimp_image_transform_color (dest_image, dest_type, d,
GIMP_RGB, rgba);
d[alpha] = rgba[ALPHA];
s += src_bytes;
d += dest_bytes;
}
}
static void
gimp_clone_line_pattern (GimpImage *dest_image,
GimpImageType dest_type,
GimpPattern *pattern,
guchar *d,
gint x,
gint y,
gint dest_bytes,
gint width)
{
guchar *pat, *p;
GimpImageBaseType color_type;
gint alpha;
gint pat_bytes;
gint i;
pat_bytes = pattern->mask->bytes;
/* Make sure x, y are positive */
while (x < 0)
x += pattern->mask->width;
while (y < 0)
y += pattern->mask->height;
/* Get a pointer to the appropriate scanline of the pattern buffer */
pat = temp_buf_get_data (pattern->mask) +
(y % pattern->mask->height) * pattern->mask->width * pat_bytes;
color_type = (pat_bytes == 3 ||
pat_bytes == 4) ? GIMP_RGB : GIMP_GRAY;
alpha = dest_bytes - 1;
for (i = 0; i < width; i++)
{
p = pat + ((i + x) % pattern->mask->width) * pat_bytes;
gimp_image_transform_color (dest_image, dest_type, d,
color_type, p);
if (pat_bytes == 2 || pat_bytes == 4)
d[alpha] = p[pat_bytes - 1];
else
d[alpha] = OPAQUE_OPACITY;
d += dest_bytes;
}
}
static void
gimp_text_layer_render_layout (GimpTextLayer *layer,
GimpTextLayout *layout)
{
GimpDrawable *drawable = GIMP_DRAWABLE (layer);
GimpItem *item = GIMP_ITEM (layer);
GimpImage *image = gimp_item_get_image (item);
cairo_t *cr;
cairo_surface_t *surface;
PixelRegion layerPR;
const guchar *data;
GimpImageType layer_type;
gint layer_alpha_byte;
gint rowstride;
gint width;
gint height;
gpointer pr;
g_return_if_fail (gimp_drawable_has_alpha (drawable));
width = gimp_item_get_width (item);
height = gimp_item_get_height (item);
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height);
cr = cairo_create (surface);
gimp_text_layout_render (layout, cr, layer->text->base_dir, FALSE);
cairo_destroy (cr);
pixel_region_init (&layerPR, gimp_drawable_get_tiles (drawable),
0, 0, width, height, TRUE);
layer_type = gimp_drawable_type (drawable);
layer_alpha_byte = layerPR.bytes - 1;
cairo_surface_flush (surface);
data = cairo_image_surface_get_data (surface);
rowstride = cairo_image_surface_get_stride (surface);
for (pr = pixel_regions_register (1, &layerPR);
pr != NULL;
pr = pixel_regions_process (pr))
{
const guchar *src = data + layerPR.y * rowstride + layerPR.x * 4;
guchar *dest = layerPR.data;
gint rows = layerPR.h;
while (rows--)
{
const guchar *s = src;
guchar *d = dest;
gint w = layerPR.w;
while (w--)
{
guchar color[4];
GIMP_CAIRO_ARGB32_GET_PIXEL (s,
color[0],
color[1],
color[2],
color[3]);
gimp_image_transform_color (image,
layer_type, d, GIMP_RGB, color);
d[layer_alpha_byte] = color[3];
s += 4;
d += layerPR.bytes;
}
src += rowstride;
dest += layerPR.rowstride;
}
}
cairo_surface_destroy (surface);
gimp_drawable_update (drawable, 0, 0, width, height);
}
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 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);
}
