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ignore transparent pixels as suggested in bug #316212.

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2005-09-13  Sven Neumann  <sven@gimp.org>

	* app/core/gimppalette-import.c (gimp_palette_import_from_image):
	ignore transparent pixels as suggested in bug #316212.
This commit is contained in:
Sven Neumann 2005-09-13 16:00:54 +00:00 committed by Sven Neumann
parent 7e090ef325
commit aa5665a9bd
2 changed files with 25 additions and 15 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2005-09-13 Sven Neumann <sven@gimp.org>
* app/core/gimppalette-import.c (gimp_palette_import_from_image):
ignore transparent pixels as suggested in bug #316212.
2005-09-13 Sven Neumann <sven@gimp.org>
* app/tools/gimpbucketfilloptions.c: reorder options as suggested

35
app/core/gimppalette-import.c
View file

@ -213,7 +213,7 @@ gimp_palette_import_create_image_palette (gpointer data,
color_tab = (ImgColors *) data;
n_colors = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (palette),
"import_n_colors"));
"import-n-colors"));
if (palette->n_colors >= n_colors)
return;
@ -247,13 +247,13 @@ gimp_palette_import_image_make_palette (GHashTable *h_array,
palette = GIMP_PALETTE (gimp_palette_new (palette_name));
g_object_set_data (G_OBJECT (palette), "import_n_colors",
g_object_set_data (G_OBJECT (palette), "import-n-colors",
GINT_TO_POINTER (n_colors));
g_slist_foreach (sorted_list, gimp_palette_import_create_image_palette,
palette);
g_object_set_data (G_OBJECT (palette), "import_n_colors", NULL);
g_object_set_data (G_OBJECT (palette), "import-n-colors", NULL);
/* Free up used memory
* Note the same structure is on both the hash list and the sorted
@ -277,8 +277,7 @@ gimp_palette_import_from_image (GimpImage *gimage,
PixelRegion imagePR;
guchar *image_data;
guchar *idata;
guchar rgb[MAX_CHANNELS];
guchar rgb_real[MAX_CHANNELS];
guchar rgba[MAX_CHANNELS];
gboolean has_alpha, indexed;
gint width, height;
gint bytes, alpha;
@ -292,7 +291,6 @@ gimp_palette_import_from_image (GimpImage *gimage,
g_return_val_if_fail (n_colors > 1, NULL);
g_return_val_if_fail (threshold > 0, NULL);
/* Get the image information */
d_type = gimp_projection_get_image_type (gimage->projection);
bytes = gimp_projection_get_bytes (gimage->projection);
has_alpha = GIMP_IMAGE_TYPE_HAS_ALPHA (d_type);
@ -318,17 +316,24 @@ gimp_palette_import_from_image (GimpImage *gimage,
for (j = 0; j < imagePR.w; j++)
{
/* Get the rgb values for the color */
gimp_image_get_color (gimage, d_type, idata, rgb);
memcpy (rgb_real, rgb, MAX_CHANNELS); /* Structure copy */
gimp_image_get_color (gimage, d_type, idata, rgba);
rgb[0] = (rgb[0] / threshold) * threshold;
rgb[1] = (rgb[1] / threshold) * threshold;
rgb[2] = (rgb[2] / threshold) * threshold;
/* ignore completely transparent pixels */
if (rgba[ALPHA_PIX])
{
guchar rgb_real[MAX_CHANNELS];
store_array =
gimp_palette_import_store_colors (store_array, rgb, rgb_real,
n_colors);
memcpy (rgb_real, rgba, MAX_CHANNELS);
rgba[0] = (rgba[0] / threshold) * threshold;
rgba[1] = (rgba[1] / threshold) * threshold;
rgba[2] = (rgba[2] / threshold) * threshold;
store_array =
gimp_palette_import_store_colors (store_array,
rgba, rgb_real,
n_colors);
}
idata += bytes;
}