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libgimpcolor: get the proper alpha variant of a palette format.

This commit is contained in:
Jehan 2023-12-11 14:04:46 +09:00
parent 1be7892862
commit 1a901e0bb9
1 changed files with 12 additions and 0 deletions
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12
libgimpcolor/gimpcolor.c
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@ -341,6 +341,18 @@ gimp_babl_format_get_with_alpha (const Babl *format)
/* Assuming we use Babl formats with same type for all components. */
type = babl_get_name (babl_format_get_type (format, 0));
if (babl_format_is_palette (format))
{
gchar *alpha_palette = g_strdup (model);
alpha_palette[0] = '\\';
babl_new_palette_with_space (alpha_palette, babl_format_get_space (format),
NULL, &new_format);
g_free (alpha_palette);
return new_format;
}
if (g_strcmp0 (model, "Y") == 0)
new_model = "YA";
else if (g_strcmp0 (model, "RGB") == 0)