Option to use the lighter hinting algorithm (FT_LOAD_TARGET_LIGHT).
I've found this algorithm produces clearer results when rendering some fonts at small point sizes. Change-Id: If87d82731ad324405195b25baad78fe54e92c142 Reviewed-on: http://gerrit.rockbox.org/412 Reviewed-by: Marcin Bukat <marcin.bukat@gmail.com> Tested: Purling Nayuki <cyq.yzfl@gmail.com> Reviewed-by: Thomas Martitz <kugel@rockbox.org>
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@ -111,6 +111,7 @@ int trim_dp = 0; /* trim descent percent */
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int trim_da = 0; /* trim descnet actual */
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int trim_ap = 0; /* trim ascent precent */
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int trim_aa = 0; /* trim ascent actual */
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int ft_load_opts = FT_LOAD_RENDER | FT_LOAD_NO_BITMAP;
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struct font_header_struct {
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char header[4]; /* magic number and version bytes */
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@ -207,6 +208,7 @@ void usage(void)
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" -t N Index of true type collection. It must be start from 0.(default N=0).\n"
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" -ta Convert all fonts in ttc (ignores outfile option)\n"
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" -w Don't try to make digits (0-9) equally wide\n"
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" -L Use lighter hinting algorithm\n"
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};
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fprintf(stderr, "%s", help);
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exit( 1 );
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@ -543,7 +545,7 @@ FT_Long check_digit_width( FT_Face face )
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{
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FT_Glyph_Metrics* metrics;
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FT_Load_Char(face, code, FT_LOAD_RENDER | FT_LOAD_NO_BITMAP);
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FT_Load_Char(face, code, ft_load_opts);
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metrics = &face->glyph->metrics;
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if ((last_advance != -1 && last_advance != metrics->horiAdvance) ||
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@ -687,8 +689,7 @@ void convttf(char* path, char* destfile, FT_Long face_index)
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{
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charindex = getcharindex( face, code);
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if ( !(charindex) ) continue;
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err = FT_Load_Glyph( face, charindex,
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(FT_LOAD_RENDER | FT_LOAD_NO_BITMAP) );
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err = FT_Load_Glyph(face, charindex, ft_load_opts);
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if ( err ) continue;
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w = glyph_width( face, code, digit_width );
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@ -770,8 +771,7 @@ void convttf(char* path, char* destfile, FT_Long face_index)
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continue;
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}
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err = FT_Load_Glyph( face, charindex ,
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(FT_LOAD_RENDER | FT_LOAD_NO_BITMAP) );
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err = FT_Load_Glyph(face, charindex, ft_load_opts);
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if ( err ) {
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continue;
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}
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@ -1254,6 +1254,9 @@ void getopts(int *pac, char ***pav)
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while (*p && *p != ' ')
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p++;
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break;
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case 'L': /* Light rendering algorithm */
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ft_load_opts |= FT_LOAD_TARGET_LIGHT;
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break;
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default:
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fprintf(stderr, "Unknown option ignored: %s\n", p-1);
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