tree e70fe854580ed52828deed4949333ebe6f8b4da0
parent d8ac180c8829b94845f31a8baea5a2573fffee42
author Alexei Podtelezhnikov <apodtele@gmail.com> 1624508390 -0400
committer Alexei Podtelezhnikov <apodtele@gmail.com> 1624508390 -0400

[smooth, raster] Fix up and align error codes.

FT_Render_Glyph picked up FAILURE or 1 returned from the raster
function, which became a confusing error code. Instead, return
Raster_Overflow in the unlikely event that banding does not help or
another meaningful error.

* src/smooth/ftgrays.c (gray_convert_glyph_inner, gray_convert_glyph):
Use Raster_Overflow when the rendering pool is exhausted and return it
if banding does not help.
(gray_raster_render): Use Smooth_Err_Ok.

* src/raster/ftraster.c (Render_Single_Pass): Return Raster_Overflow
if banding does not help or another error code.