static void
transfer_registration_color (const guchar *src,
gint bpp,
gint numpix,
guchar **dst,
gint num_channels)
{
register const guchar *rgb_src = src;
guchar *dsts[4];
register gint count = numpix;
gint channel;
GimpRGB color;
guchar red, green, blue;
gimp_context_get_foreground (&color);
gimp_rgb_get_uchar (&color, &red, &green, &blue);
for (channel = 0; channel < num_channels; channel++)
dsts[channel] = dst[channel];
while (count-- > 0)
{
if (rgb_src[0] == red && rgb_src[1] == green && rgb_src[2] == blue)
for (channel = 0; channel < num_channels; channel++)
*(dsts[channel]++) = 255;
else
for (channel = 0; channel < num_channels; channel++)
dsts[channel]++;
rgb_src += bpp;
}
}
static guchar
best_cmap_match (const guchar *cmap,
gint ncolors,
const GimpRGB *color)
{
guchar cmap_index = 0;
gint max = MAXDIFF;
gint i, diff, sum;
guchar r, g, b;
gimp_rgb_get_uchar (color, &r, &g, &b);
for (i = 0; i < ncolors; i++)
{
diff = r - *cmap++;
sum = SQR (diff);
diff = g - *cmap++;
sum += SQR (diff);
diff = b - *cmap++;
sum += SQR (diff);
if (sum < max)
{
cmap_index = i;
max = sum;
}
}
return cmap_index;
}
/**
* gimp_color_hex_entry_set_color:
* @entry: a #GimpColorHexEntry widget
* @color: pointer to a #GimpRGB
*
* Sets the color displayed by a #GimpColorHexEntry. If the new color
* is different to the previously set color, the "color-changed"
* signal is emitted.
*
* Since: GIMP 2.2
**/
void
gimp_color_hex_entry_set_color (GimpColorHexEntry *entry,
const GimpRGB *color)
{
g_return_if_fail (GIMP_IS_COLOR_HEX_ENTRY (entry));
g_return_if_fail (color != NULL);
if (gimp_rgb_distance (&entry->color, color) > 0.0)
{
gchar buffer[8];
guchar r, g, b;
gimp_rgb_set (&entry->color, color->r, color->g, color->b);
gimp_rgb_clamp (&entry->color);
gimp_rgb_get_uchar (&entry->color, &r, &g, &b);
g_snprintf (buffer, sizeof (buffer), "%.2x%.2x%.2x", r, g, b);
gtk_entry_set_text (GTK_ENTRY (entry), buffer);
/* move cursor to the end */
gtk_editable_set_position (GTK_EDITABLE (entry), -1);
g_signal_emit (entry, entry_signals[COLOR_CHANGED], 0);
}
}
GtkTextTag *
gimp_text_buffer_get_color_tag (GimpTextBuffer *buffer,
const GimpRGB *color)
{
GList *list;
GtkTextTag *tag;
gchar name[256];
GdkColor gdk_color;
guchar r, g, b;
gimp_rgb_get_uchar (color, &r, &g, &b);
for (list = buffer->color_tags; list; list = g_list_next (list))
{
GimpRGB tag_color;
guchar tag_r, tag_g, tag_b;
tag = list->data;
gimp_text_tag_get_color (tag, &tag_color);
gimp_rgb_get_uchar (&tag_color, &tag_r, &tag_g, &tag_b);
/* Do not compare the alpha channel, since it's unused */
if (tag_r == r &&
tag_g == g &&
tag_b == b)
{
return tag;
}
}
g_snprintf (name, sizeof (name), "color-#%02x%02x%02x",
r, g, b);
gimp_rgb_get_gdk_color (color, &gdk_color);
tag = gtk_text_buffer_create_tag (GTK_TEXT_BUFFER (buffer),
name,
"foreground-gdk", &gdk_color,
"foreground-set", TRUE,
NULL);
buffer->color_tags = g_list_prepend (buffer->color_tags, tag);
return tag;
}
static gboolean
gimp_color_hex_entry_events (GtkWidget *widget,
GdkEvent *event)
{
GimpColorHexEntry *entry = GIMP_COLOR_HEX_ENTRY (widget);
switch (event->type)
{
case GDK_KEY_PRESS:
{
GdkEventKey *kevent = (GdkEventKey *) event;
if (kevent->keyval != GDK_KEY_Return &&
kevent->keyval != GDK_KEY_KP_Enter &&
kevent->keyval != GDK_KEY_ISO_Enter)
break;
/* else fall through */
}
case GDK_FOCUS_CHANGE:
{
const gchar *text;
gchar buffer[8];
guchar r, g, b;
text = gtk_entry_get_text (GTK_ENTRY (widget));
gimp_rgb_get_uchar (&entry->color, &r, &g, &b);
g_snprintf (buffer, sizeof (buffer), "%.2x%.2x%.2x", r, g, b);
if (g_ascii_strcasecmp (buffer, text) != 0)
{
GimpRGB color;
gsize len = strlen (text);
if (len > 0 &&
(gimp_rgb_parse_hex (&color, text, len) ||
gimp_rgb_parse_name (&color, text, -1)))
{
gimp_color_hex_entry_set_color (entry, &color);
}
else
{
gtk_entry_set_text (GTK_ENTRY (entry), buffer);
}
}
}
break;
default:
/* do nothing */
break;
}
return FALSE;
}
static VALUE
rb_gimp_rgb_get_uchar (VALUE self)
{
Get_TypedStruct(self, GimpRGB, color);
guchar r, g, b;
gimp_rgb_get_uchar(color, &r, &g, &b);
return rb_ary_new3(3, INT2FIX(r), INT2FIX(g), INT2FIX(b));
}
void
get_colors (GimpDrawable *drawable,
guint8 *fg,
guint8 *bg)
{
GimpRGB foreground;
GimpRGB background;
gimp_context_get_foreground (&foreground);
gimp_context_get_background (&background);
fg[0] = fg[1] = fg[2] = fg[3] = 255;
bg[0] = bg[1] = bg[2] = bg[3] = 255;
switch (gimp_drawable_type (drawable->drawable_id))
{
case GIMP_RGB_IMAGE:
case GIMP_RGBA_IMAGE:
gimp_rgb_get_uchar (&foreground, &fg[0], &fg[1], &fg[2]);
gimp_rgb_get_uchar (&background, &bg[0], &bg[1], &bg[2]);
break;
case GIMP_GRAYA_IMAGE:
case GIMP_GRAY_IMAGE:
fg[0] = gimp_rgb_luminance_uchar (&foreground);
bg[0] = gimp_rgb_luminance_uchar (&background);
break;
case GIMP_INDEXEDA_IMAGE:
case GIMP_INDEXED_IMAGE: /* FIXME: Should use current fg/bg colors. */
g_warning("maze: get_colors: Indexed image. Using colors 15 and 0.\n");
fg[0] = 15; /* As a plugin, I protest. *I* shouldn't be the */
bg[0] = 0; /* one who has to deal with this colormapcrap. */
break;
default:
break;
}
}
static void
transform (guchar *r,
guchar *g,
guchar *b)
{
switch (wvals.colormodel)
{
case HSL_MODEL:
{
GimpHSL hsl;
GimpRGB rgb;
gimp_rgb_set_uchar (&rgb, *r, *g, *b);
gimp_rgb_to_hsl (&rgb, &hsl);
if (wvals.redmode)
hsl.h = 0.5 * (1.0 + sin (((2 * hsl.h - 1.0) * wvals.redfrequency +
wvals.redangle / 180.0) * G_PI));
if (wvals.greenmode)
hsl.s = 0.5 * (1.0 + sin (((2 * hsl.s - 1.0) * wvals.greenfrequency +
wvals.greenangle / 180.0) * G_PI));
if (wvals.bluemode)
hsl.l = 0.5 * (1.0 + sin (((2 * hsl.l - 1.0) * wvals.bluefrequency +
wvals.blueangle / 180.0) * G_PI));
gimp_hsl_to_rgb (&hsl, &rgb);
gimp_rgb_get_uchar (&rgb, r, g, b);
}
break;
case RGB_MODEL:
if (wvals.redmode)
*r = ROUND (127.5 * (1.0 +
sin (((*r / 127.5 - 1.0) * wvals.redfrequency +
wvals.redangle / 180.0) * G_PI)));
if (wvals.greenmode)
*g = ROUND (127.5 * (1.0 +
sin (((*g / 127.5 - 1.0) * wvals.greenfrequency +
wvals.greenangle / 180.0) * G_PI)));
if (wvals.bluemode)
*b = ROUND (127.5 * (1.0 +
sin (((*b / 127.5 - 1.0) * wvals.bluefrequency +
wvals.blueangle / 180.0) * G_PI)));
break;
}
}
/* Returns: %TRUE if the XOR color is not white */
static gboolean
gimp_canvas_get_xor_color (GimpCanvas *canvas,
GdkColor *color)
{
GimpDisplayConfig *config = GIMP_DISPLAY_CONFIG (canvas->gimp->config);
guchar r, g, b;
gimp_rgb_get_uchar (&config->xor_color, &r, &g, &b);
color->red = (r << 8) | r;
color->green = (g << 8) | g;
color->blue = (b << 8) | b;
return (r != 255 || g != 255 || b != 255);
}
/**
* gimp_rgb_get_gdk_color:
* @rgb: the source color as #GimpRGB
* @gdk_color: pointer to a #GdkColor
*
* Initializes @gdk_color from a #GimpRGB. This function does not
* allocate the color for you. Depending on how you want to use it,
* you may have to call gdk_colormap_alloc_color().
**/
void
gimp_rgb_get_gdk_color (const GimpRGB *rgb,
GdkColor *gdk_color)
{
guchar r, g, b;
g_return_if_fail (rgb != NULL);
g_return_if_fail (gdk_color != NULL);
gimp_rgb_get_uchar (rgb, &r, &g, &b);
gdk_color->red = (r << 8) | r;
gdk_color->green = (g << 8) | g;
gdk_color->blue = (b << 8) | b;
}
gboolean
gimp_palette_save (GimpData *data,
GOutputStream *output,
GError **error)
{
GimpPalette *palette = GIMP_PALETTE (data);
GString *string;
GList *list;
gsize bytes_written;
string = g_string_new ("GIMP Palette\n");
g_string_append_printf (string,
"Name: %s\n"
"Columns: %d\n"
"#\n",
gimp_object_get_name (palette),
CLAMP (gimp_palette_get_columns (palette), 0, 256));
for (list = gimp_palette_get_colors (palette);
list;
list = g_list_next (list))
{
GimpPaletteEntry *entry = list->data;
guchar r, g, b;
gimp_rgb_get_uchar (&entry->color, &r, &g, &b);
g_string_append_printf (string, "%3d %3d %3d\t%s\n",
r, g, b, entry->name);
}
if (! g_output_stream_write_all (output, string->str, string->len,
&bytes_written, NULL, error) ||
bytes_written != string->len)
{
g_string_free (string, TRUE);
return FALSE;
}
g_string_free (string, TRUE);
return TRUE;
}
static void
initialize_background (GimpImageType image_type,
gint channels,
guchar *here,
guchar *best,
void **tmp)
{
GimpRGB background;
guchar *ch;
if (*tmp == NULL)
{
*tmp = (void *) g_new (guchar, 3);
ch = (guchar *)*tmp;
gimp_context_get_background (&background);
gimp_rgb_get_uchar (&background, &ch[0], &ch[1], &ch[2]);
}
}
void
gimp_image_add_colormap_entry (GimpImage *image,
const GimpRGB *color)
{
g_return_if_fail (GIMP_IS_IMAGE (image));
g_return_if_fail (image->colormap != NULL);
g_return_if_fail (image->n_colors < 256);
g_return_if_fail (color != NULL);
gimp_image_undo_push_image_colormap (image,
_("Add Color to Colormap"));
gimp_rgb_get_uchar (color,
&image->colormap[image->n_colors * 3],
&image->colormap[image->n_colors * 3 + 1],
&image->colormap[image->n_colors * 3 + 2]);
image->n_colors++;
gimp_image_colormap_changed (image, -1);
}
gboolean
gimp_palette_save (GimpData *data,
GError **error)
{
GimpPalette *palette = GIMP_PALETTE (data);
GList *list;
FILE *file;
file = g_fopen (gimp_data_get_filename (data), "wb");
if (! file)
{
g_set_error (error, GIMP_DATA_ERROR, GIMP_DATA_ERROR_OPEN,
_("Could not open '%s' for writing: %s"),
gimp_filename_to_utf8 (gimp_data_get_filename (data)),
g_strerror (errno));
return FALSE;
}
fprintf (file, "GIMP Palette\n");
fprintf (file, "Name: %s\n", gimp_object_get_name (palette));
fprintf (file, "Columns: %d\n#\n", CLAMP (gimp_palette_get_columns (palette),
0, 256));
for (list = gimp_palette_get_colors (palette);
list;
list = g_list_next (list))
{
GimpPaletteEntry *entry = list->data;
guchar r, g, b;
gimp_rgb_get_uchar (&entry->color, &r, &g, &b);
fprintf (file, "%3d %3d %3d\t%s\n", r, g, b, entry->name);
}
fclose (file);
return TRUE;
}
void
gimp_image_set_colormap_entry (GimpImage *image,
gint color_index,
const GimpRGB *color,
gboolean push_undo)
{
g_return_if_fail (GIMP_IS_IMAGE (image));
g_return_if_fail (image->colormap != NULL);
g_return_if_fail (color_index >= 0 && color_index < image->n_colors);
g_return_if_fail (color != NULL);
if (push_undo)
gimp_image_undo_push_image_colormap (image,
_("Change Colormap entry"));
gimp_rgb_get_uchar (color,
&image->colormap[color_index * 3],
&image->colormap[color_index * 3 + 1],
&image->colormap[color_index * 3 + 2]);
gimp_image_colormap_changed (image, color_index);
}
void
gimp_drawable_get_color_uchar (gint32 drawable_ID,
const GimpRGB *color,
guchar *color_uchar)
{
g_return_if_fail (color != NULL);
g_return_if_fail (color_uchar != NULL);
switch (gimp_drawable_type (drawable_ID))
{
case GIMP_RGB_IMAGE:
gimp_rgb_get_uchar (color,
&color_uchar[0], &color_uchar[1], &color_uchar[2]);
color_uchar[3] = 255;
break;
case GIMP_RGBA_IMAGE:
gimp_rgba_get_uchar (color,
&color_uchar[0], &color_uchar[1], &color_uchar[2],
&color_uchar[3]);
break;
case GIMP_GRAY_IMAGE:
color_uchar[0] = gimp_rgb_luminance_uchar (color);
color_uchar[1] = 255;
break;
case GIMP_GRAYA_IMAGE:
color_uchar[0] = gimp_rgb_luminance_uchar (color);
gimp_rgba_get_uchar (color, NULL, NULL, NULL, &color_uchar[1]);
break;
default:
break;
}
}
void
compute_preview (gint x,
gint y,
gint w,
gint h,
gint pw,
gint ph)
{
gdouble xpostab[PREVIEW_WIDTH];
gdouble ypostab[PREVIEW_HEIGHT];
gdouble realw;
gdouble realh;
GimpVector3 p1, p2;
GimpRGB color;
GimpRGB lightcheck, darkcheck;
gint xcnt, ycnt, f1, f2;
glong index = 0;
init_compute ();
p1 = int_to_pos (x, y);
p2 = int_to_pos (x + w, y + h);
/* First, compute the linear mapping (x,y,x+w,y+h) to (0,0,pw,ph) */
/* ============================================================== */
realw = (p2.x - p1.x);
realh = (p2.y - p1.y);
for (xcnt = 0; xcnt < pw; xcnt++)
xpostab[xcnt] = p1.x + realw * ((gdouble) xcnt / (gdouble) pw);
for (ycnt = 0; ycnt < ph; ycnt++)
ypostab[ycnt] = p1.y + realh * ((gdouble) ycnt / (gdouble) ph);
/* Compute preview using the offset tables */
/* ======================================= */
if (mapvals.transparent_background == TRUE)
{
gimp_rgba_set (&background, 0.0, 0.0, 0.0, 0.0);
}
else
{
gimp_context_get_background (&background);
gimp_rgb_set_alpha (&background, 1.0);
}
gimp_rgba_set (&lightcheck,
GIMP_CHECK_LIGHT, GIMP_CHECK_LIGHT, GIMP_CHECK_LIGHT, 1.0);
gimp_rgba_set (&darkcheck,
GIMP_CHECK_DARK, GIMP_CHECK_DARK, GIMP_CHECK_DARK, 1.0);
gimp_vector3_set (&p2, -1.0, -1.0, 0.0);
for (ycnt = 0; ycnt < ph; ycnt++)
{
for (xcnt = 0; xcnt < pw; xcnt++)
{
p1.x = xpostab[xcnt];
p1.y = ypostab[ycnt];
p2 = p1;
color = (* get_ray_color) (&p1);
if (color.a < 1.0)
{
f1 = ((xcnt % 32) < 16);
f2 = ((ycnt % 32) < 16);
f1 = f1 ^ f2;
if (f1)
{
if (color.a == 0.0)
color = lightcheck;
else
gimp_rgb_composite (&color, &lightcheck,
GIMP_RGB_COMPOSITE_BEHIND);
}
else
{
if (color.a == 0.0)
color = darkcheck;
else
gimp_rgb_composite (&color, &darkcheck,
GIMP_RGB_COMPOSITE_BEHIND);
}
}
gimp_rgb_get_uchar (&color,
preview_rgb_data + index,
preview_rgb_data + index + 1,
preview_rgb_data + index + 2);
index += 3;
}
}
}
static void
value_propagate_body (GimpDrawable *drawable,
GimpPreview *preview)
{
GimpImageType dtype;
ModeParam operation;
GimpPixelRgn srcRgn, destRgn;
guchar *here, *best, *dest;
guchar *dest_row, *prev_row, *cur_row, *next_row;
guchar *pr, *cr, *nr, *swap;
gint width, height, bytes, index;
gint begx, begy, endx, endy, x, y, dx;
gint left_index, right_index, up_index, down_index;
gpointer tmp;
GimpRGB foreground;
/* calculate neighbors' indexes */
left_index = (vpvals.direction_mask & (1 << Left2Right)) ? -1 : 0;
right_index = (vpvals.direction_mask & (1 << Right2Left)) ? 1 : 0;
up_index = (vpvals.direction_mask & (1 << Top2Bottom)) ? -1 : 0;
down_index = (vpvals.direction_mask & (1 << Bottom2Top)) ? 1 : 0;
operation = modes[vpvals.propagate_mode];
tmp = NULL;
dtype = gimp_drawable_type (drawable->drawable_id);
bytes = drawable->bpp;
/* Here I use the algorithm of blur.c */
if (preview)
{
gimp_preview_get_position (preview, &begx, &begy);
gimp_preview_get_size (preview, &width, &height);
endx = begx + width;
endy = begy + height;
}
else
{
if (! gimp_drawable_mask_intersect (drawable->drawable_id,
&begx, &begy, &width, &height))
return;
endx = begx + width;
endy = begy + height;
}
gimp_tile_cache_ntiles (2 * ((width) / gimp_tile_width () + 1));
prev_row = g_new (guchar, (width + 2) * bytes);
cur_row = g_new (guchar, (width + 2) * bytes);
next_row = g_new (guchar, (width + 2) * bytes);
dest_row = g_new (guchar, width * bytes);
gimp_pixel_rgn_init (&srcRgn, drawable,
begx, begy, width, height,
FALSE, FALSE);
gimp_pixel_rgn_init (&destRgn, drawable,
begx, begy, width, height,
(preview == NULL), TRUE);
pr = prev_row + bytes;
cr = cur_row + bytes;
nr = next_row + bytes;
prepare_row (&srcRgn, pr, begx, (0 < begy) ? begy : begy - 1, endx-begx);
prepare_row (&srcRgn, cr, begx, begy, endx-begx);
best = g_new (guchar, bytes);
if (!preview)
gimp_progress_init (_("Value Propagate"));
gimp_context_get_foreground (&foreground);
gimp_rgb_get_uchar (&foreground, fore+0, fore+1, fore+2);
/* start real job */
for (y = begy ; y < endy ; y++)
{
prepare_row (&srcRgn, nr, begx, ((y+1) < endy) ? y+1 : endy, endx-begx);
for (index = 0; index < (endx - begx) * bytes; index++)
dest_row[index] = cr[index];
for (x = 0 ; x < endx - begx; x++)
{
dest = dest_row + (x * bytes);
here = cr + (x * bytes);
/* *** copy source value to best value holder *** */
memcpy (best, here, bytes);
if (operation.initializer)
(* operation.initializer)(dtype, bytes, best, here, &tmp);
/* *** gather neighbors' values: loop-unfolded version *** */
if (up_index == -1)
for (dx = left_index ; dx <= right_index ; dx++)
(* operation.updater)(dtype, bytes, here, pr+((x+dx)*bytes), best, tmp);
for (dx = left_index ; dx <= right_index ; dx++)
if (dx != 0)
(* operation.updater)(dtype, bytes, here, cr+((x+dx)*bytes), best, tmp);
if (down_index == 1)
for (dx = left_index ; dx <= right_index ; dx++)
(* operation.updater)(dtype, bytes, here, nr+((x+dx)*bytes), best, tmp);
/* *** store it to dest_row*** */
(* operation.finalizer)(dtype, bytes, best, here, dest, tmp);
}
/* now store destline to destRgn */
gimp_pixel_rgn_set_row (&destRgn, dest_row, begx, y, endx - begx);
/* shift the row pointers */
swap = pr;
pr = cr;
cr = nr;
nr = swap;
if (((y % 16) == 0) && !preview)
gimp_progress_update ((gdouble) y / (gdouble) (endy - begy));
}
if (preview)
{
gimp_drawable_preview_draw_region (GIMP_DRAWABLE_PREVIEW (preview),
&destRgn);
}
else
{
/* update the region */
gimp_progress_update (1.0);
gimp_drawable_flush (drawable);
gimp_drawable_merge_shadow (drawable->drawable_id, TRUE);
gimp_drawable_update (drawable->drawable_id, begx, begy, endx-begx, endy-begy);
}
}
GimpColorTransform *
gimp_widget_get_color_transform (GtkWidget *widget,
GimpColorConfig *config,
GimpColorProfile *src_profile,
const Babl *src_format,
const Babl *dest_format)
{
static gboolean initialized = FALSE;
GimpColorProfile *dest_profile = NULL;
GimpColorProfile *proof_profile = NULL;
TransformCache *cache;
g_return_val_if_fail (widget == NULL || GTK_IS_WIDGET (widget), NULL);
g_return_val_if_fail (GIMP_IS_COLOR_CONFIG (config), NULL);
g_return_val_if_fail (GIMP_IS_COLOR_PROFILE (src_profile), NULL);
g_return_val_if_fail (src_format != NULL, NULL);
g_return_val_if_fail (dest_format != NULL, NULL);
if (G_UNLIKELY (! initialized))
{
initialized = TRUE;
debug_cache = g_getenv ("GIMP_DEBUG_TRANSFORM_CACHE") != NULL;
}
switch (gimp_color_config_get_mode (config))
{
case GIMP_COLOR_MANAGEMENT_OFF:
return NULL;
case GIMP_COLOR_MANAGEMENT_SOFTPROOF:
proof_profile = gimp_color_config_get_simulation_color_profile (config,
NULL);
/* fallthru */
case GIMP_COLOR_MANAGEMENT_DISPLAY:
dest_profile = get_display_profile (widget, config);
break;
}
cache = transform_cache_get (config,
src_profile,
src_format,
dest_profile,
dest_format,
proof_profile);
if (cache)
{
g_object_unref (dest_profile);
if (proof_profile)
g_object_unref (proof_profile);
if (cache->transform)
return g_object_ref (cache->transform);
return NULL;
}
if (! proof_profile &&
gimp_color_profile_is_equal (src_profile, dest_profile))
{
g_object_unref (dest_profile);
return NULL;
}
cache = g_new0 (TransformCache, 1);
if (debug_cache)
g_printerr ("creating cache %p\n", cache);
cache->config = g_object_ref (config);
cache->src_profile = g_object_ref (src_profile);
cache->src_format = src_format;
cache->dest_profile = dest_profile;
cache->dest_format = dest_format;
cache->proof_profile = proof_profile;
cache->notify_id =
g_signal_connect (cache->config, "notify",
G_CALLBACK (transform_cache_config_notify),
cache);
transform_caches = g_list_prepend (transform_caches, cache);
if (cache->proof_profile)
{
GimpColorTransformFlags flags = 0;
if (gimp_color_config_get_simulation_bpc (config))
flags |= GIMP_COLOR_TRANSFORM_FLAGS_BLACK_POINT_COMPENSATION;
if (! gimp_color_config_get_simulation_optimize (config))
flags |= GIMP_COLOR_TRANSFORM_FLAGS_NOOPTIMIZE;
if (gimp_color_config_get_simulation_gamut_check (config))
{
cmsUInt16Number alarmCodes[cmsMAXCHANNELS] = { 0, };
guchar r, g, b;
flags |= GIMP_COLOR_TRANSFORM_FLAGS_GAMUT_CHECK;
gimp_rgb_get_uchar (&config->out_of_gamut_color, &r, &g, &b);
alarmCodes[0] = (cmsUInt16Number) r * 256;
alarmCodes[1] = (cmsUInt16Number) g * 256;
alarmCodes[2] = (cmsUInt16Number) b * 256;
cmsSetAlarmCodes (alarmCodes);
}
cache->transform =
gimp_color_transform_new_proofing (cache->src_profile,
cache->src_format,
cache->dest_profile,
cache->dest_format,
cache->proof_profile,
gimp_color_config_get_simulation_intent (config),
gimp_color_config_get_display_intent (config),
flags);
}
else
{
GimpColorTransformFlags flags = 0;
if (gimp_color_config_get_display_bpc (config))
flags |= GIMP_COLOR_TRANSFORM_FLAGS_BLACK_POINT_COMPENSATION;
if (! gimp_color_config_get_display_optimize (config))
flags |= GIMP_COLOR_TRANSFORM_FLAGS_NOOPTIMIZE;
cache->transform =
gimp_color_transform_new (cache->src_profile,
cache->src_format,
cache->dest_profile,
cache->dest_format,
gimp_color_config_get_display_intent (config),
flags);
}
if (cache->transform)
return g_object_ref (cache->transform);
return NULL;
}
static void
cdisplay_lcms_changed (GimpColorDisplay *display)
{
CdisplayLcms *lcms = CDISPLAY_LCMS (display);
GimpColorConfig *config = gimp_color_display_get_config (display);
cmsHPROFILE src_profile = NULL;
cmsHPROFILE dest_profile = NULL;
cmsHPROFILE proof_profile = NULL;
cmsUInt16Number alarmCodes[cmsMAXCHANNELS] = { 0, };
if (lcms->transform)
{
cmsDeleteTransform (lcms->transform);
lcms->transform = NULL;
}
if (! config)
return;
switch (config->mode)
{
case GIMP_COLOR_MANAGEMENT_OFF:
return;
case GIMP_COLOR_MANAGEMENT_SOFTPROOF:
proof_profile = cdisplay_lcms_get_printer_profile (lcms);
/* fallthru */
case GIMP_COLOR_MANAGEMENT_DISPLAY:
src_profile = cdisplay_lcms_get_rgb_profile (lcms);
dest_profile = cdisplay_lcms_get_display_profile (lcms);
break;
}
if (proof_profile)
{
cmsUInt32Number softproof_flags = 0;
if (! src_profile)
src_profile = gimp_lcms_create_srgb_profile ();
if (! dest_profile)
dest_profile = gimp_lcms_create_srgb_profile ();
softproof_flags |= cmsFLAGS_SOFTPROOFING;
if (config->simulation_use_black_point_compensation)
{
softproof_flags |= cmsFLAGS_BLACKPOINTCOMPENSATION;
}
if (config->simulation_gamut_check)
{
guchar r, g, b;
softproof_flags |= cmsFLAGS_GAMUTCHECK;
gimp_rgb_get_uchar (&config->out_of_gamut_color, &r, &g, &b);
alarmCodes[0] = (cmsUInt16Number) r * 256;
alarmCodes[1] = (cmsUInt16Number) g * 256;
alarmCodes[2] = (cmsUInt16Number) b * 256;
cmsSetAlarmCodes (alarmCodes);
}
lcms->transform = cmsCreateProofingTransform (src_profile, TYPE_RGBA_FLT,
dest_profile, TYPE_RGBA_FLT,
proof_profile,
config->simulation_intent,
config->display_intent,
softproof_flags);
cmsCloseProfile (proof_profile);
}
else if (src_profile || dest_profile)
{
cmsUInt32Number display_flags = 0;
if (! src_profile)
src_profile = gimp_lcms_create_srgb_profile ();
if (! dest_profile)
dest_profile = gimp_lcms_create_srgb_profile ();
if (config->display_use_black_point_compensation)
{
display_flags |= cmsFLAGS_BLACKPOINTCOMPENSATION;
}
lcms->transform = cmsCreateTransform (src_profile, TYPE_RGBA_FLT,
dest_profile, TYPE_RGBA_FLT,
config->display_intent,
display_flags);
}
if (dest_profile)
cmsCloseProfile (dest_profile);
if (src_profile)
cmsCloseProfile (src_profile);
}
static void
gimp_view_renderer_palette_render (GimpViewRenderer *renderer,
GtkWidget *widget)
{
GimpViewRendererPalette *renderpal = GIMP_VIEW_RENDERER_PALETTE (renderer);
GimpPalette *palette;
guchar *row;
guchar *dest;
GList *list;
gdouble cell_width;
gint grid_width;
gint dest_stride;
gint y;
palette = GIMP_PALETTE (renderer->viewable);
if (palette->n_colors < 1)
return;
grid_width = renderpal->draw_grid ? 1 : 0;
if (renderpal->cell_size > 0)
{
if (palette->n_columns > 0)
cell_width = MAX ((gdouble) renderpal->cell_size,
(gdouble) (renderer->width - grid_width) /
(gdouble) palette->n_columns);
else
cell_width = renderpal->cell_size;
}
else
{
if (palette->n_columns > 0)
cell_width = ((gdouble) (renderer->width - grid_width) /
(gdouble) palette->n_columns);
else
cell_width = (gdouble) (renderer->width - grid_width) / 16.0;
}
cell_width = MAX (4.0, cell_width);
renderpal->cell_width = cell_width;
renderpal->columns = (gdouble) (renderer->width - grid_width) / cell_width;
renderpal->rows = palette->n_colors / renderpal->columns;
if (palette->n_colors % renderpal->columns)
renderpal->rows += 1;
renderpal->cell_height = MAX (4, ((renderer->height - grid_width) /
renderpal->rows));
if (! renderpal->draw_grid)
renderpal->cell_height = MIN (renderpal->cell_height,
renderpal->cell_width);
list = palette->colors;
if (! renderer->surface)
renderer->surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24,
renderer->width,
renderer->height);
cairo_surface_flush (renderer->surface);
row = g_new (guchar, renderer->width * 4);
dest = cairo_image_surface_get_data (renderer->surface);
dest_stride = cairo_image_surface_get_stride (renderer->surface);
for (y = 0; y < renderer->height; y++)
{
if ((y % renderpal->cell_height) == 0)
{
guchar r, g, b;
gint x;
gint n = 0;
guchar *d = row;
memset (row, renderpal->draw_grid ? 0 : 255, renderer->width * 4);
r = g = b = (renderpal->draw_grid ? 0 : 255);
for (x = 0; x < renderer->width; x++, d += 4)
{
if ((x % renderpal->cell_width) == 0)
{
if (list && n < renderpal->columns &&
renderer->width - x >= renderpal->cell_width)
{
GimpPaletteEntry *entry = list->data;
list = g_list_next (list);
n++;
gimp_rgb_get_uchar (&entry->color, &r, &g, &b);
}
else
{
r = g = b = (renderpal->draw_grid ? 0 : 255);
}
}
if (renderpal->draw_grid && (x % renderpal->cell_width) == 0)
{
GIMP_CAIRO_RGB24_SET_PIXEL (d, 0, 0, 0);
}
else
{
GIMP_CAIRO_RGB24_SET_PIXEL (d, r, g, b);
}
}
}
if (renderpal->draw_grid && (y % renderpal->cell_height) == 0)
{
memset (dest, 0, renderer->width * 4);
}
else
{
memcpy (dest, row, renderer->width * 4);
}
dest += dest_stride;
}
g_free (row);
cairo_surface_mark_dirty (renderer->surface);
renderer->needs_render = FALSE;
}
static void
compute_preview (gint startx, gint starty, gint w, gint h)
{
gint xcnt, ycnt, f1, f2;
gdouble imagex, imagey;
gint32 index = 0;
GimpRGB color;
GimpRGB lightcheck, darkcheck;
GimpVector3 pos;
get_ray_func ray_func;
if (xpostab_size != w)
{
if (xpostab)
{
g_free (xpostab);
xpostab = NULL;
}
}
if (!xpostab)
{
xpostab = g_new (gdouble, w);
xpostab_size = w;
}
if (ypostab_size != h)
{
if (ypostab)
{
g_free (ypostab);
ypostab = NULL;
}
}
if (!ypostab)
{
ypostab = g_new (gdouble, h);
ypostab_size = h;
}
for (xcnt = 0; xcnt < w; xcnt++)
xpostab[xcnt] = (gdouble) width *((gdouble) xcnt / (gdouble) w);
for (ycnt = 0; ycnt < h; ycnt++)
ypostab[ycnt] = (gdouble) height *((gdouble) ycnt / (gdouble) h);
precompute_init (width, height);
gimp_rgba_set (&lightcheck,
GIMP_CHECK_LIGHT, GIMP_CHECK_LIGHT, GIMP_CHECK_LIGHT,
1.0);
gimp_rgba_set (&darkcheck, GIMP_CHECK_DARK, GIMP_CHECK_DARK,
GIMP_CHECK_DARK, 1.0);
if (mapvals.bump_mapped == TRUE && mapvals.bumpmap_id != -1)
{
gimp_pixel_rgn_init (&bump_region,
gimp_drawable_get (mapvals.bumpmap_id),
0, 0, width, height, FALSE, FALSE);
}
imagey = 0;
if (mapvals.previewquality)
ray_func = get_ray_color;
else
ray_func = get_ray_color_no_bilinear;
if (mapvals.env_mapped == TRUE && mapvals.envmap_id != -1)
{
env_width = gimp_drawable_width (mapvals.envmap_id);
env_height = gimp_drawable_height (mapvals.envmap_id);
gimp_pixel_rgn_init (&env_region,
gimp_drawable_get (mapvals.envmap_id), 0,
0, env_width, env_height, FALSE, FALSE);
if (mapvals.previewquality)
ray_func = get_ray_color_ref;
else
ray_func = get_ray_color_no_bilinear_ref;
}
for (ycnt = 0; ycnt < PREVIEW_HEIGHT; ycnt++)
{
for (xcnt = 0; xcnt < PREVIEW_WIDTH; xcnt++)
{
if ((ycnt >= starty && ycnt < (starty + h)) &&
(xcnt >= startx && xcnt < (startx + w)))
{
imagex = xpostab[xcnt - startx];
imagey = ypostab[ycnt - starty];
pos = int_to_posf (imagex, imagey);
if (mapvals.bump_mapped == TRUE &&
mapvals.bumpmap_id != -1 &&
xcnt == startx)
{
pos_to_float (pos.x, pos.y, &imagex, &imagey);
precompute_normals (0, width, RINT (imagey));
}
color = (*ray_func) (&pos);
if (color.a < 1.0)
{
f1 = ((xcnt % 32) < 16);
f2 = ((ycnt % 32) < 16);
f1 = f1 ^ f2;
if (f1)
{
if (color.a == 0.0)
color = lightcheck;
else
gimp_rgb_composite (&color,
&lightcheck,
GIMP_RGB_COMPOSITE_BEHIND);
}
else
{
if (color.a == 0.0)
color = darkcheck;
else
gimp_rgb_composite (&color,
&darkcheck,
GIMP_RGB_COMPOSITE_BEHIND);
}
}
gimp_rgb_get_uchar (&color,
preview_rgb_data + index,
preview_rgb_data + index +
1,
preview_rgb_data + index +
2);
index += 3;
imagex++;
}
else
{
preview_rgb_data[index++] = 200;
preview_rgb_data[index++] = 200;
preview_rgb_data[index++] = 200;
}
}
}
}
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);
}
/* do the exchanging */
static void
exchange (GimpDrawable *drawable,
GimpPreview *preview)
{
GimpPixelRgn srcPR, destPR;
guchar min_red, min_green, min_blue;
guchar max_red, max_green, max_blue;
guchar from_red, from_green, from_blue;
guchar to_red, to_green, to_blue;
guchar *src_row, *dest_row;
gint x, y, bpp = drawable->bpp;
gboolean has_alpha;
gint x1, y1, y2;
gint width, height;
GimpRGB min;
GimpRGB max;
if (preview)
{
gimp_preview_get_position (preview, &x1, &y1);
gimp_preview_get_size (preview, &width, &height);
}
else if (! gimp_drawable_mask_intersect (drawable->drawable_id,
&x1, &y1, &width, &height))
{
return;
}
y2 = y1 + height;
has_alpha = gimp_drawable_has_alpha (drawable->drawable_id);
/* allocate memory */
src_row = g_new (guchar, drawable->width * bpp);
gimp_rgb_get_uchar (&xargs.from, &from_red, &from_green, &from_blue);
gimp_rgb_get_uchar (&xargs.to, &to_red, &to_green, &to_blue);
/* get boundary values */
min = xargs.from;
gimp_rgb_subtract (&min, &xargs.threshold);
gimp_rgb_clamp (&min);
gimp_rgb_get_uchar (&min, &min_red, &min_green, &min_blue);
max = xargs.from;
gimp_rgb_add (&max, &xargs.threshold);
gimp_rgb_clamp (&max);
gimp_rgb_get_uchar (&max, &max_red, &max_green, &max_blue);
dest_row = g_new (guchar, drawable->width * bpp);
gimp_pixel_rgn_init (&srcPR, drawable,
x1, y1, width, height, FALSE, FALSE);
gimp_pixel_rgn_init (&destPR, drawable,
x1, y1, width, height, (preview == NULL), TRUE);
for (y = y1; y < y2; y++)
{
gimp_pixel_rgn_get_row (&srcPR, src_row, x1, y, width);
for (x = 0; x < width; x++)
{
guchar pixel_red, pixel_green, pixel_blue;
guchar new_red, new_green, new_blue;
guint idx;
/* get current pixel-values */
pixel_red = src_row[x * bpp];
pixel_green = src_row[x * bpp + 1];
pixel_blue = src_row[x * bpp + 2];
idx = x * bpp;
/* want this pixel? */
if (pixel_red >= min_red &&
pixel_red <= max_red &&
pixel_green >= min_green &&
pixel_green <= max_green &&
pixel_blue >= min_blue &&
pixel_blue <= max_blue)
{
guchar red_delta, green_delta, blue_delta;
red_delta = pixel_red > from_red ?
pixel_red - from_red : from_red - pixel_red;
green_delta = pixel_green > from_green ?
pixel_green - from_green : from_green - pixel_green;
blue_delta = pixel_blue > from_blue ?
pixel_blue - from_blue : from_blue - pixel_blue;
new_red = CLAMP (to_red + red_delta, 0, 255);
new_green = CLAMP (to_green + green_delta, 0, 255);
new_blue = CLAMP (to_blue + blue_delta, 0, 255);
}
else
{
new_red = pixel_red;
new_green = pixel_green;
new_blue = pixel_blue;
}
/* fill buffer */
dest_row[idx + 0] = new_red;
dest_row[idx + 1] = new_green;
dest_row[idx + 2] = new_blue;
/* copy alpha-channel */
if (has_alpha)
dest_row[idx + 3] = src_row[x * bpp + 3];
}
/* store the dest */
gimp_pixel_rgn_set_row (&destPR, dest_row, x1, y, width);
/* and tell the user what we're doing */
if (!preview && (y % 10) == 0)
gimp_progress_update ((gdouble) y / (gdouble) height);
}
g_free (src_row);
g_free (dest_row);
if (preview)
{
gimp_drawable_preview_draw_region (GIMP_DRAWABLE_PREVIEW (preview),
&destPR);
}
else
{
gimp_progress_update (1.0);
/* update the processed region */
gimp_drawable_flush (drawable);
gimp_drawable_merge_shadow (drawable->drawable_id, TRUE);
gimp_drawable_update (drawable->drawable_id, x1, y1, width, height);
}
}
void
_gimp_color_area_render_buf (GtkWidget *widget,
gboolean insensitive,
GimpColorAreaType type,
guchar *buf,
guint width,
guint height,
guint rowstride,
GimpRGB *color)
{
guint x, y;
guint check_size = 0;
guchar light[3];
guchar dark[3];
guchar opaque[3];
guchar insens[3];
guchar *p;
gdouble frac;
g_return_if_fail (GTK_IS_WIDGET (widget));
g_return_if_fail (buf != NULL);
g_return_if_fail (color != NULL);
switch (type)
{
case GIMP_COLOR_AREA_FLAT:
check_size = 0;
break;
case GIMP_COLOR_AREA_SMALL_CHECKS:
check_size = GIMP_CHECK_SIZE_SM;
break;
case GIMP_COLOR_AREA_LARGE_CHECKS:
check_size = GIMP_CHECK_SIZE;
break;
}
gimp_rgb_get_uchar (color, opaque, opaque + 1, opaque + 2);
insens[0] = widget->style->bg[GTK_STATE_INSENSITIVE].red >> 8;
insens[1] = widget->style->bg[GTK_STATE_INSENSITIVE].green >> 8;
insens[2] = widget->style->bg[GTK_STATE_INSENSITIVE].blue >> 8;
if (insensitive || check_size == 0 || color->a == 1.0)
{
for (y = 0; y < height; y++)
{
p = buf + y * rowstride;
for (x = 0; x < width; x++)
{
if (insensitive && ((x + y) % 2))
{
*p++ = insens[0];
*p++ = insens[1];
*p++ = insens[2];
}
else
{
*p++ = opaque[0];
*p++ = opaque[1];
*p++ = opaque[2];
}
}
}
return;
}
light[0] = (GIMP_CHECK_LIGHT +
(color->r - GIMP_CHECK_LIGHT) * color->a) * 255.999;
light[1] = (GIMP_CHECK_LIGHT +
(color->g - GIMP_CHECK_LIGHT) * color->a) * 255.999;
light[2] = (GIMP_CHECK_LIGHT +
(color->b - GIMP_CHECK_LIGHT) * color->a) * 255.999;
dark[0] = (GIMP_CHECK_DARK +
(color->r - GIMP_CHECK_DARK) * color->a) * 255.999;
dark[1] = (GIMP_CHECK_DARK +
(color->g - GIMP_CHECK_DARK) * color->a) * 255.999;
dark[2] = (GIMP_CHECK_DARK +
(color->b - GIMP_CHECK_DARK) * color->a) * 255.999;
for (y = 0; y < height; y++)
{
p = buf + y * rowstride;
for (x = 0; x < width; x++)
{
if ((width - x) * height > y * width)
{
*p++ = opaque[0];
*p++ = opaque[1];
*p++ = opaque[2];
continue;
}
frac = y - (gdouble) ((width - x) * height) / (gdouble) width;
if (((x / check_size) ^ (y / check_size)) & 1)
{
if ((gint) frac)
{
*p++ = light[0];
*p++ = light[1];
*p++ = light[2];
}
else
{
*p++ = ((gdouble) light[0] * frac +
(gdouble) opaque[0] * (1.0 - frac));
*p++ = ((gdouble) light[1] * frac +
(gdouble) opaque[1] * (1.0 - frac));
*p++ = ((gdouble) light[2] * frac +
(gdouble) opaque[2] * (1.0 - frac));
}
}
else
{
if ((gint) frac)
{
*p++ = dark[0];
*p++ = dark[1];
*p++ = dark[2];
}
else
{
*p++ = ((gdouble) dark[0] * frac +
(gdouble) opaque[0] * (1.0 - frac));
*p++ = ((gdouble) dark[1] * frac +
(gdouble) opaque[1] * (1.0 - frac));
*p++ = ((gdouble) dark[2] * frac +
(gdouble) opaque[2] * (1.0 - frac));
}
}
}
}
}
static void
init_calculation (gint32 drawable_id)
{
gdouble k;
gdouble alpha, beta;
gdouble angle;
GimpVector2 v1, v2;
gint32 *image_layers;
gint32 nlayers;
GimpRGB color;
gimp_layer_add_alpha (drawable_id);
/* Image parameters */
/* Determine Position of original Layer in the Layer stack. */
image_layers = gimp_image_get_layers (image_id, &nlayers);
drawable_position = 0;
while (drawable_position < nlayers &&
image_layers[drawable_position] != drawable_id)
drawable_position++;
switch (curl.orientation)
{
case CURL_ORIENTATION_VERTICAL:
sel_width = true_sel_width;
sel_height = true_sel_height;
break;
case CURL_ORIENTATION_HORIZONTAL:
sel_width = true_sel_height;
sel_height = true_sel_width;
break;
}
/* Circle parameters */
alpha = atan ((double) sel_height / sel_width);
beta = alpha / 2.0;
k = sel_width / ((G_PI + alpha) * sin (beta) + cos (beta));
gimp_vector2_set (¢er, k * cos (beta), k * sin (beta));
radius = center.y;
/* left_tangent */
gimp_vector2_set (&left_tangent, radius * -sin (alpha), radius * cos (alpha));
gimp_vector2_add (&left_tangent, &left_tangent, ¢er);
/* right_tangent */
gimp_vector2_sub (&v1, &left_tangent, ¢er);
gimp_vector2_set (&v2, sel_width - center.x, sel_height - center.y);
angle = -2.0 * acos (gimp_vector2_inner_product (&v1, &v2) /
(gimp_vector2_length (&v1) *
gimp_vector2_length (&v2)));
gimp_vector2_set (&right_tangent,
v1.x * cos (angle) + v1.y * -sin (angle),
v1.x * sin (angle) + v1.y * cos (angle));
gimp_vector2_add (&right_tangent, &right_tangent, ¢er);
/* Slopes */
diagl_slope = (double) sel_width / sel_height;
diagr_slope = (sel_width - right_tangent.x) / (sel_height - right_tangent.y);
diagb_slope = ((right_tangent.y - left_tangent.y) /
(right_tangent.x - left_tangent.x));
diagm_slope = (sel_width - center.x) / sel_height;
/* Colors */
gimp_context_get_foreground (&color);
gimp_rgb_get_uchar (&color, &fore_color[0], &fore_color[1], &fore_color[2]);
gimp_context_get_background (&color);
gimp_rgb_get_uchar (&color, &back_color[0], &back_color[1], &back_color[2]);
}
void
repaint (ppm_t *p, ppm_t *a)
{
int x, y;
int tx = 0, ty = 0;
ppm_t tmp = {0, 0, NULL};
ppm_t atmp = {0, 0, NULL};
int r, g, b, h, i, j, on, sn;
int num_brushes, maxbrushwidth, maxbrushheight;
guchar back[3] = {0, 0, 0};
ppm_t *brushes, *shadows;
ppm_t *brush, *shadow = NULL;
double *brushes_sum;
int cx, cy, maxdist;
double scale, relief, startangle, anglespan, density, bgamma;
int max_progress;
ppm_t paper_ppm = {0, 0, NULL};
ppm_t dirmap = {0, 0, NULL};
ppm_t sizmap = {0, 0, NULL};
int *xpos = NULL, *ypos = NULL;
int progstep;
static int running = 0;
int dropshadow = pcvals.general_drop_shadow;
int shadowblur = pcvals.general_shadow_blur;
if (running)
return;
running++;
runningvals = pcvals;
/* Shouldn't be necessary, but... */
if (img_has_alpha)
if ((p->width != a->width) || (p->height != a->height))
{
g_printerr ("Huh? Image size != alpha size?\n");
return;
}
num_brushes = runningvals.orient_num * runningvals.size_num;
startangle = runningvals.orient_first;
anglespan = runningvals.orient_last;
density = runningvals.brush_density;
if (runningvals.place_type == PLACEMENT_TYPE_EVEN_DIST)
density /= 3.0;
bgamma = runningvals.brushgamma;
brushes = g_malloc (num_brushes * sizeof (ppm_t));
brushes_sum = g_malloc (num_brushes * sizeof (double));
if (dropshadow)
shadows = g_malloc (num_brushes * sizeof (ppm_t));
else
shadows = NULL;
brushes[0].col = NULL;
brush_get_selected (&brushes[0]);
resize (&brushes[0],
brushes[0].width,
brushes[0].height * pow (10, runningvals.brush_aspect));
scale = runningvals.size_last / MAX (brushes[0].width, brushes[0].height);
if (bgamma != 1.0)
ppm_apply_gamma (&brushes[0], 1.0 / bgamma, 1,1,1);
resize (&brushes[0], brushes[0].width * scale, brushes[0].height * scale);
i = 1 + sqrt (brushes[0].width * brushes[0].width +
brushes[0].height * brushes[0].height);
ppm_pad (&brushes[0], i-brushes[0].width, i-brushes[0].width,
i - brushes[0].height, i - brushes[0].height, back);
for (i = 1; i < num_brushes; i++)
{
brushes[i].col = NULL;
ppm_copy (&brushes[0], &brushes[i]);
}
for (i = 0; i < runningvals.size_num; i++)
{
double sv;
if (runningvals.size_num > 1)
sv = i / (runningvals.size_num - 1.0);
else sv = 1.0;
for (j = 0; j < runningvals.orient_num; j++)
{
h = j + i * runningvals.orient_num;
free_rotate (&brushes[h],
startangle + j * anglespan / runningvals.orient_num);
rescale (&brushes[h],
( sv * runningvals.size_first +
(1.0-sv) * runningvals.size_last ) / runningvals.size_last);
autocrop (&brushes[h],1);
}
}
/* Brush-debugging */
#if 0
for (i = 0; i < num_brushes; i++)
{
char tmp[1000];
g_snprintf (tmp, sizeof (tmp), "/tmp/_brush%03d.ppm", i);
ppm_save (&brushes[i], tmp);
}
#endif
for (i = 0; i < num_brushes; i++)
{
if (!runningvals.color_brushes)
prepare_brush (&brushes[i]);
brushes_sum[i] = sum_brush (&brushes[i]);
}
brush = &brushes[0];
maxbrushwidth = maxbrushheight = 0;
for (i = 0; i < num_brushes; i++)
{
if (brushes[i].width > maxbrushwidth)
maxbrushwidth = brushes[i].width;
if (brushes[i].height > maxbrushheight)
maxbrushheight = brushes[i].height;
}
for (i = 0; i < num_brushes; i++)
{
int xp, yp;
guchar blk[3] = {0, 0, 0};
xp = maxbrushwidth - brushes[i].width;
yp = maxbrushheight - brushes[i].height;
if (xp || yp)
ppm_pad (&brushes[i], xp / 2, xp - xp / 2, yp / 2, yp - yp / 2, blk);
}
if (dropshadow)
{
for (i = 0; i < num_brushes; i++)
{
shadows[i].col = NULL;
ppm_copy (&brushes[i], &shadows[i]);
ppm_apply_gamma (&shadows[i], 0, 1,1,0);
ppm_pad (&shadows[i], shadowblur*2, shadowblur*2,
shadowblur*2, shadowblur*2, back);
for (j = 0; j < shadowblur; j++)
blur (&shadows[i], 2, 2);
#if 0
autocrop (&shadows[i],1);
#endif
}
#if 0
maxbrushwidth += shadowdepth*3;
maxbrushheight += shadowdepth*3;
#endif
}
/* For extra annoying debugging :-) */
#if 0
ppm_save (brushes, "/tmp/__brush.ppm");
if (shadows) ppm_save (shadows, "/tmp/__shadow.ppm");
system ("xv /tmp/__brush.ppm & xv /tmp/__shadow.ppm & ");
#endif
if (runningvals.general_paint_edges)
{
edgepad (p, maxbrushwidth, maxbrushwidth,
maxbrushheight, maxbrushheight);
if (img_has_alpha)
edgepad (a, maxbrushwidth, maxbrushwidth,
maxbrushheight, maxbrushheight);
}
if (img_has_alpha)
{
/* Initially fully transparent */
if (runningvals.general_background_type == BG_TYPE_TRANSPARENT)
{
guchar tmpcol[3] = {255, 255, 255};
ppm_new (&atmp, a->width, a->height);
fill (&atmp, tmpcol);
}
else
{
ppm_copy (a, &atmp);
}
}
if (runningvals.general_background_type == BG_TYPE_SOLID)
{
guchar tmpcol[3];
ppm_new (&tmp, p->width, p->height);
gimp_rgb_get_uchar (&runningvals.color,
&tmpcol[0], &tmpcol[1], &tmpcol[2]);
fill (&tmp, tmpcol);
}
else if (runningvals.general_background_type == BG_TYPE_KEEP_ORIGINAL)
{
ppm_copy (p, &tmp);
}
else
{
int dx, dy;
ppm_new (&tmp, p->width, p->height);
ppm_load (runningvals.selected_paper, &paper_ppm);
if (runningvals.paper_scale != 100.0)
{
scale = runningvals.paper_scale / 100.0;
resize (&paper_ppm, paper_ppm.width * scale, paper_ppm.height * scale);
}
if (runningvals.paper_invert)
ppm_apply_gamma (&paper_ppm, -1.0, 1, 1, 1);
dx = runningvals.general_paint_edges ? paper_ppm.width - maxbrushwidth : 0;
dy = runningvals.general_paint_edges ? paper_ppm.height - maxbrushheight : 0;
for (y = 0; y < tmp.height; y++)
{
int lx;
int ry = (y + dy) % paper_ppm.height;
for (x = 0; x < tmp.width; x+=lx)
{
int rx = (x + dx) % paper_ppm.width;
lx = MIN (tmp.width - x, paper_ppm.width - rx);
memcpy (&tmp.col[y * tmp.width * 3 + x * 3],
&paper_ppm.col[ry * paper_ppm.width * 3 + rx * 3],
3 * lx);
}
}
}
cx = p->width / 2;
cy = p->height / 2;
maxdist = sqrt (cx * cx + cy * cy);
switch (runningvals.orient_type)
{
case ORIENTATION_VALUE:
ppm_new (&dirmap, p->width, p->height);
for (y = 0; y < dirmap.height; y++)
{
guchar *dstrow = &dirmap.col[y * dirmap.width * 3];
guchar *srcrow = &p->col[y * p->width * 3];
for (x = 0; x < dirmap.width; x++)
{
dstrow[x * 3] =
(srcrow[x * 3] + srcrow[x * 3 + 1] + srcrow[x * 3 + 2]) / 3;
}
}
break;
case ORIENTATION_RADIUS:
ppm_new (&dirmap, p->width, p->height);
for (y = 0; y < dirmap.height; y++)
{
guchar *dstrow = &dirmap.col[y * dirmap.width * 3];
double ysqr = (cy - y) * (cy - y);
for (x = 0; x < dirmap.width; x++)
{
dstrow[x*3] = sqrt ((cx - x) * (cx - x) + ysqr) * 255 / maxdist;
}
}
break;
case ORIENTATION_RADIAL:
ppm_new (&dirmap, p->width, p->height);
for (y = 0; y < dirmap.height; y++)
{
guchar *dstrow = &dirmap.col[y * dirmap.width * 3];
for (x = 0; x < dirmap.width; x++)
{
dstrow[x * 3] = (G_PI + atan2 (cy - y, cx - x)) *
255.0 / (G_PI * 2);
}
}
break;
case ORIENTATION_FLOWING:
ppm_new (&dirmap, p->width / 6 + 5, p->height / 6 + 5);
mkgrayplasma (&dirmap, 15);
blur (&dirmap, 2, 2);
blur (&dirmap, 2, 2);
resize (&dirmap, p->width, p->height);
blur (&dirmap, 2, 2);
if (runningvals.general_paint_edges)
edgepad (&dirmap, maxbrushwidth, maxbrushheight,
maxbrushwidth, maxbrushheight);
break;
case ORIENTATION_HUE:
ppm_new (&dirmap, p->width, p->height);
for (y = 0; y < dirmap.height; y++)
{
guchar *dstrow = &dirmap.col[y * dirmap.width * 3];
guchar *srcrow = &p->col[y * p->width * 3];
for (x = 0; x < dirmap.width; x++)
{
dstrow[x * 3] = get_hue (&srcrow[x * 3]);
}
}
break;
case ORIENTATION_ADAPTIVE:
{
guchar tmpcol[3] = {0, 0, 0};
ppm_new (&dirmap, p->width, p->height);
fill (&dirmap, tmpcol);
}
break;
case ORIENTATION_MANUAL:
ppm_new (&dirmap, p->width-maxbrushwidth*2, p->height-maxbrushheight*2);
for (y = 0; y < dirmap.height; y++)
{
guchar *dstrow = &dirmap.col[y * dirmap.width * 3];
double tmpy = y / (double)dirmap.height;
for (x = 0; x < dirmap.width; x++)
{
dstrow[x * 3] = get_pixel_value(90 -
get_direction(x /
(double)dirmap.width,
tmpy, 1));
}
}
edgepad (&dirmap,
maxbrushwidth, maxbrushwidth,
maxbrushheight, maxbrushheight);
break;
}
if (runningvals.size_type == SIZE_TYPE_VALUE)
{
ppm_new (&sizmap, p->width, p->height);
for (y = 0; y < sizmap.height; y++)
{
guchar *dstrow = &sizmap.col[y * sizmap.width * 3];
guchar *srcrow = &p->col[y * p->width * 3];
for (x = 0; x < sizmap.width; x++)
{
dstrow[x * 3] =
(srcrow[x * 3] + srcrow[x * 3 + 1] + srcrow[x * 3 + 2]) / 3;
}
}
}
else if (runningvals.size_type == SIZE_TYPE_RADIUS)
{
ppm_new (&sizmap, p->width, p->height);
for (y = 0; y < sizmap.height; y++)
{
guchar *dstrow = &sizmap.col[y * sizmap.width * 3];
double ysqr = (cy - y) * (cy - y);
for (x = 0; x < sizmap.width; x++)
{
dstrow[x * 3] =
sqrt ((cx - x) * (cx - x) + ysqr) * 255 / maxdist;
}
}
}
else if (runningvals.size_type == SIZE_TYPE_RADIAL)
{
ppm_new (&sizmap, p->width, p->height);
for (y = 0; y < sizmap.height; y++)
{
guchar *dstrow = &sizmap.col[y * sizmap.width * 3];
for (x = 0; x < sizmap.width; x++)
{
dstrow[x * 3] = (G_PI + atan2 (cy - y, cx - x)) *
255.0 / (G_PI * 2);
}
}
}
else if (runningvals.size_type == SIZE_TYPE_FLOWING)
{
ppm_new (&sizmap, p->width / 6 + 5, p->height / 6 + 5);
mkgrayplasma (&sizmap, 15);
blur (&sizmap, 2, 2);
blur (&sizmap, 2, 2);
resize (&sizmap, p->width, p->height);
blur (&sizmap, 2, 2);
if (runningvals.general_paint_edges)
edgepad (&sizmap,
maxbrushwidth, maxbrushheight,
maxbrushwidth, maxbrushheight);
}
else if (runningvals.size_type == SIZE_TYPE_HUE)
{
ppm_new (&sizmap, p->width, p->height);
for (y = 0; y < sizmap.height; y++)
{
guchar *dstrow = &sizmap.col[y * sizmap.width * 3];
guchar *srcrow = &p->col[y * p->width * 3];
for (x = 0; x < sizmap.width; x++)
{
dstrow[ x * 3] = get_hue (&srcrow[x * 3]);
}
}
}
else if (runningvals.size_type == SIZE_TYPE_ADAPTIVE)
{
guchar tmpcol[3] = {0, 0, 0};
ppm_new (&sizmap, p->width, p->height);
fill (&sizmap, tmpcol);
}
else if (runningvals.size_type == SIZE_TYPE_MANUAL)
{
ppm_new (&sizmap,
p->width-maxbrushwidth * 2,
p->height-maxbrushheight * 2);
for (y = 0; y < sizmap.height; y++)
{
guchar *dstrow = &sizmap.col[y * sizmap.width * 3];
double tmpy = y / (double)sizmap.height;
for (x = 0; x < sizmap.width; x++)
{
dstrow[x * 3] = 255 * (1.0 - get_siz_from_pcvals (x / (double)sizmap.width, tmpy));
}
}
edgepad (&sizmap,
maxbrushwidth, maxbrushwidth,
maxbrushheight, maxbrushheight);
}
#if 0
ppm_save(&sizmap, "/tmp/_sizmap.ppm");
#endif
if (runningvals.place_type == PLACEMENT_TYPE_RANDOM)
{
i = tmp.width * tmp.height / (maxbrushwidth * maxbrushheight);
i *= density;
}
else if (runningvals.place_type == PLACEMENT_TYPE_EVEN_DIST)
{
i = (int)(tmp.width * density / maxbrushwidth) *
(int)(tmp.height * density / maxbrushheight);
#if 0
g_printerr("i=%d\n", i);
#endif
}
if (i < 1)
i = 1;
max_progress = i;
progstep = max_progress / 30;
if (progstep < 10)
progstep = 10;
if (runningvals.place_type == PLACEMENT_TYPE_EVEN_DIST)
{
int j;
xpos = g_new (int, i);
ypos = g_new (int, i);
for (j = 0; j < i; j++)
{
int factor = (int)(tmp.width * density / maxbrushwidth + 0.5);
if (factor < 1)
factor = 1;
xpos[j] = maxbrushwidth/2 + (j % factor) * maxbrushwidth / density;
ypos[j] = maxbrushheight/2 + (j / factor) * maxbrushheight / density;
}
for (j = 0; j < i; j++)
{
int a, b;
a = g_rand_int_range (random_generator, 0, i);
b = xpos[j]; xpos[j] = xpos[a]; xpos[a] = b;
b = ypos[j]; ypos[j] = ypos[a]; ypos[a] = b;
}
}
GimpColorTransform
gimp_widget_get_color_transform (GtkWidget *widget,
GimpColorConfig *config,
GimpColorProfile *src_profile,
const Babl **src_format,
const Babl **dest_format)
{
GimpColorTransform transform = NULL;
GimpColorProfile *dest_profile = NULL;
GimpColorProfile *proof_profile = NULL;
cmsHPROFILE src_lcms;
cmsHPROFILE dest_lcms;
cmsUInt32Number lcms_src_format;
cmsUInt32Number lcms_dest_format;
cmsUInt16Number alarmCodes[cmsMAXCHANNELS] = { 0, };
g_return_val_if_fail (widget == NULL || GTK_IS_WIDGET (widget), NULL);
g_return_val_if_fail (GIMP_IS_COLOR_PROFILE (src_profile), NULL);
g_return_val_if_fail (GIMP_IS_COLOR_CONFIG (config), NULL);
g_return_val_if_fail (src_format != NULL, NULL);
g_return_val_if_fail (dest_format != NULL, NULL);
switch (config->mode)
{
case GIMP_COLOR_MANAGEMENT_OFF:
return NULL;
case GIMP_COLOR_MANAGEMENT_SOFTPROOF:
proof_profile = gimp_color_config_get_printer_color_profile (config, NULL);
/* fallthru */
case GIMP_COLOR_MANAGEMENT_DISPLAY:
dest_profile = get_display_profile (widget, config);
break;
}
src_lcms = gimp_color_profile_get_lcms_profile (src_profile);
dest_lcms = gimp_color_profile_get_lcms_profile (dest_profile);
*src_format = gimp_color_profile_get_format (*src_format, &lcms_src_format);
*dest_format = gimp_color_profile_get_format (*dest_format, &lcms_dest_format);
if (proof_profile)
{
cmsHPROFILE proof_lcms;
cmsUInt32Number softproof_flags = cmsFLAGS_SOFTPROOFING;
proof_lcms = gimp_color_profile_get_lcms_profile (proof_profile);
if (config->simulation_use_black_point_compensation)
{
softproof_flags |= cmsFLAGS_BLACKPOINTCOMPENSATION;
}
if (config->simulation_gamut_check)
{
guchar r, g, b;
softproof_flags |= cmsFLAGS_GAMUTCHECK;
gimp_rgb_get_uchar (&config->out_of_gamut_color, &r, &g, &b);
alarmCodes[0] = (cmsUInt16Number) r * 256;
alarmCodes[1] = (cmsUInt16Number) g * 256;
alarmCodes[2] = (cmsUInt16Number) b * 256;
cmsSetAlarmCodes (alarmCodes);
}
transform = cmsCreateProofingTransform (src_lcms, lcms_src_format,
dest_lcms, lcms_dest_format,
proof_lcms,
config->simulation_intent,
config->display_intent,
softproof_flags);
g_object_unref (proof_profile);
}
else if (! gimp_color_profile_is_equal (src_profile, dest_profile))
{
cmsUInt32Number display_flags = 0;
if (config->display_use_black_point_compensation)
{
display_flags |= cmsFLAGS_BLACKPOINTCOMPENSATION;
}
transform = cmsCreateTransform (src_lcms, lcms_src_format,
dest_lcms, lcms_dest_format,
config->display_intent,
display_flags);
}
g_object_unref (dest_profile);
return transform;
}
static inline void
filter (void)
{
static void (* overlap)(guchar *, const guchar *);
GimpPixelRgn src;
GimpPixelRgn dst;
GimpRGB color;
guchar pixel[4];
gint division_x;
gint division_y;
gint offset_x;
gint offset_y;
Tile *tiles;
gint numof_tiles;
Tile *t;
gint i;
gint x;
gint y;
gint move_max_pixels;
gint clear_x0;
gint clear_y0;
gint clear_x1;
gint clear_y1;
gint clear_width;
gint clear_height;
guchar *pixels;
guchar *buffer;
gint dindex;
gint sindex;
gint px, py;
GRand *gr;
gr = g_rand_new ();
/* INITIALIZE */
gimp_pixel_rgn_init (&src, p.drawable, 0, 0,
p.drawable->width, p.drawable->height, FALSE, FALSE);
gimp_pixel_rgn_init (&dst, p.drawable, 0, 0,
p.drawable->width, p.drawable->height, TRUE, TRUE);
pixels = g_new (guchar,
p.drawable->bpp * p.drawable->width * p.drawable->height);
buffer = g_new (guchar,
p.drawable->bpp * p.params.tile_width * p.params.tile_height);
overlap = p.drawable_has_alpha ? overlap_RGBA : overlap_RGB;
gimp_progress_init (_("Paper Tile"));
gimp_drawable_mask_bounds (p.drawable->drawable_id,
&p.selection.x0, &p.selection.y0,
&p.selection.x1, &p.selection.y1);
p.selection.width = p.selection.x1 - p.selection.x0;
p.selection.height = p.selection.y1 - p.selection.y0;
gimp_tile_cache_ntiles (2 * (p.selection.width / gimp_tile_width () + 1));
/* TILES */
division_x = p.params.division_x;
division_y = p.params.division_y;
if (p.params.fractional_type == FRACTIONAL_TYPE_FORCE)
{
if (0 < p.drawable->width % p.params.tile_width) division_x++;
if (0 < p.drawable->height % p.params.tile_height) division_y++;
if (p.params.centering)
{
if (1 < p.drawable->width % p.params.tile_width)
{
division_x++;
offset_x =
(p.drawable->width % p.params.tile_width) / 2 -
p.params.tile_width;
}
else
{
offset_x = 0;
}
if (1 < p.drawable->height % p.params.tile_height)
{
division_y++;
offset_y =
(p.drawable->height % p.params.tile_height) / 2 -
p.params.tile_height;
}
else
{
offset_y = 0;
}
}
else
{
offset_x = 0;
offset_y = 0;
}
}
else
{
if (p.params.centering)
{
offset_x = (p.drawable->width % p.params.tile_width) / 2;
offset_y = (p.drawable->height % p.params.tile_height) / 2;
}
else
{
offset_x = 0;
offset_y = 0;
}
}
move_max_pixels = p.params.move_max_rate * p.params.tile_width / 100.0;
numof_tiles = division_x * division_y;
t = tiles = g_new(Tile, numof_tiles);
for (y = 0; y < division_y; y++)
{
gint srcy = offset_y + p.params.tile_height * y;
for (x = 0; x < division_x; x++, t++)
{
gint srcx = offset_x + p.params.tile_width * x;
if (srcx < 0)
{
t->x = 0;
t->width = srcx + p.params.tile_width;
}
else if (srcx + p.params.tile_width < p.drawable->width)
{
t->x = srcx;
t->width = p.params.tile_width;
}
else
{
t->x = srcx;
t->width = p.drawable->width - srcx;
}
if (srcy < 0)
{
t->y = 0;
t->height = srcy + p.params.tile_height;
}
else if (srcy + p.params.tile_height < p.drawable->height)
{
t->y = srcy;
t->height = p.params.tile_height;
}
else
{
t->y = srcy;
t->height = p.drawable->height - srcy;
}
t->z = g_rand_int (gr);
random_move (&t->move_x, &t->move_y, move_max_pixels);
}
}
qsort (tiles, numof_tiles, sizeof *tiles, tile_compare);
gimp_pixel_rgn_get_rect (&src, pixels, 0, 0, p.drawable->width,
p.drawable->height);
if (p.params.fractional_type == FRACTIONAL_TYPE_IGNORE)
{
clear_x0 = offset_x;
clear_y0 = offset_y;
clear_width = p.params.tile_width * division_x;
clear_height = p.params.tile_height * division_y;
}
else
{
clear_x0 = 0;
clear_y0 = 0;
clear_width = p.drawable->width;
clear_height = p.drawable->height;
}
clear_x1 = clear_x0 + clear_width;
clear_y1 = clear_y0 + clear_height;
switch (p.params.background_type)
{
case BACKGROUND_TYPE_TRANSPARENT:
for (y = clear_y0; y < clear_y1; y++)
{
for (x = clear_x0; x < clear_x1; x++)
{
dindex = p.drawable->bpp * (p.drawable->width * y + x);
for (i = 0; i < p.drawable->bpp; i++)
{
pixels[dindex+i] = 0;
}
}
}
break;
case BACKGROUND_TYPE_INVERTED:
for (y = clear_y0; y < clear_y1; y++)
{
for (x = clear_x0; x < clear_x1; x++)
{
dindex = p.drawable->bpp * (p.drawable->width * y + x);
pixels[dindex+0] = 255 - pixels[dindex+0];
pixels[dindex+1] = 255 - pixels[dindex+1];
pixels[dindex+2] = 255 - pixels[dindex+2];
}
}
break;
case BACKGROUND_TYPE_IMAGE:
break;
case BACKGROUND_TYPE_FOREGROUND:
gimp_context_get_foreground (&color);
gimp_rgb_get_uchar (&color, &pixel[0], &pixel[1], &pixel[2]);
pixel[3] = 255;
for (y = clear_y0; y < clear_y1; y++)
{
for (x = clear_x0; x < clear_x1; x++)
{
dindex = p.drawable->bpp * (p.drawable->width * y + x);
for (i = 0; i < p.drawable->bpp; i++)
{
pixels[dindex+i] = pixel[i];
}
}
}
break;
case BACKGROUND_TYPE_BACKGROUND:
gimp_context_get_background (&color);
gimp_rgb_get_uchar (&color, &pixel[0], &pixel[1], &pixel[2]);
pixel[3] = 255;
for (y = clear_y0; y < clear_y1; y++)
{
for (x = clear_x0; x < clear_x1; x++)
{
dindex = p.drawable->bpp * (p.drawable->width * y + x);
for(i = 0; i < p.drawable->bpp; i++)
{
pixels[dindex+i] = pixel[i];
}
}
}
break;
case BACKGROUND_TYPE_COLOR:
gimp_rgba_get_uchar (&p.params.background_color,
pixel, pixel + 1, pixel + 2, pixel + 3);
for (y = clear_y0; y < clear_y1; y++)
{
for (x = clear_x0; x < clear_x1; x++)
{
dindex = p.drawable->bpp * (p.drawable->width * y + x);
for(i = 0; i < p.drawable->bpp; i++)
{
pixels[dindex+i] = pixel[i];
}
}
}
break;
}
/* DRAW */
for (t = tiles, i = 0; i < numof_tiles; i++, t++)
{
gint x0 = t->x + t->move_x;
gint y0 = t->y + t->move_y;
gimp_pixel_rgn_get_rect (&src, buffer, t->x, t->y, t->width, t->height);
for (y = 0; y < t->height; y++)
{
py = y0 + y;
for (x = 0; x < t->width; x++)
{
px = x0 + x;
sindex = p.drawable->bpp * (t->width * y + x);
if (0 <= px && px < p.drawable->width &&
0 <= py && py < p.drawable->height)
{
dindex = p.drawable->bpp * (p.drawable->width * py + px);
overlap(&pixels[dindex], &buffer[sindex]);
}
else if (p.params.wrap_around)
{
px = (px + p.drawable->width) % p.drawable->width;
py = (py + p.drawable->height) % p.drawable->height;
dindex = p.drawable->bpp * (p.drawable->width * py + px);
overlap(&pixels[dindex], &buffer[sindex]);
}
}
}
gimp_progress_update ((gdouble) i / (gdouble) numof_tiles);
}
gimp_pixel_rgn_set_rect (&dst, pixels, 0, 0, p.drawable->width,
p.drawable->height);
gimp_progress_update (1.0);
gimp_drawable_flush (p.drawable);
gimp_drawable_merge_shadow (p.drawable->drawable_id, TRUE);
gimp_drawable_update (p.drawable->drawable_id,
p.selection.x0, p.selection.y0,
p.selection.width, p.selection.height);
g_rand_free (gr);
g_free (buffer);
g_free (pixels);
g_free (tiles);
}
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);
}