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Michael Natterer authored
2003-06-02 Michael Natterer <mitch@gimp.org> Implemented DISSOLVE_MODE the way it should have always been. Fixes bug #107402. * app/paint-funcs-generic.h (struct apply_layer_mode_struct): added "guchar *mask" so it can be used by the layer mode. (dissolve_pixels): take an additional "mask" parameter and dissolve the pixels according to the *combined* opacity of the pixel's alpha, the opacity and the mask. Removed a wrong comment about why we call g_rand_int() x times before we start to use its values. (layer_dissolve_mode): pass the mask to dissolve_pixels(). No need to call add_alpha_pixels() since we overwrite the dest buffer entirely in disolve_pixels(). * app/paint-funcs.c (initial_sub_region, combine_sub_region): allocate the buffer large enough for DISSOLVE (which always needs an alpha channel). Pass the mask to the layer mode functions. Discard opacity and mask after applying DISSOLVE since it "consumes" all transparency.
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