shithub: freetype+ttf2subf

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[sdf] Do not throw errors for invisible glyphs.

* src/sdf/ftsdfrend.c (ft_sdf_render, ft_bsdf_render): Return `FT_Err_Ok` if
width or height is zero, since some glyphs do not generate visible bitmaps.

Fixes #1150.

git/fs: mount .git/fs: mount/attach disallowed

--- a/src/sdf/ftsdfrend.c

+++ b/src/sdf/ftsdfrend.c

@@ -298,16 +298,10 @@

       goto Exit;

     }

-    /* the rows and pitch must be valid after presetting the */

-    /* bitmap using outline                                  */

+    /* nothing to render */

     if ( !bitmap->rows || !bitmap->pitch )

-    {

-      FT_ERROR(( "ft_sdf_render: failed to preset bitmap\n" ));

+      return FT_Err_Ok;

-      error = FT_THROW( Cannot_Render_Glyph );

-      goto Exit;

-    }

-

     /* the padding will simply be equal to the `spread' */

     x_pad = sdf_module->spread;

     y_pad = sdf_module->spread;

@@ -525,13 +519,9 @@

       goto Exit;

     }

+    /* nothing to render */

     if ( !bitmap->rows || !bitmap->pitch )

-    {

-      FT_ERROR(( "ft_bsdf_render: invalid bitmap size\n" ));

-

-      error = FT_THROW( Invalid_Argument );

-      goto Exit;

-    }

+      return FT_Err_Ok;

     FT_Bitmap_New( &target );