diff options
Diffstat (limited to 'include/freetype/ftgasp.h')
| -rw-r--r-- | include/freetype/ftgasp.h | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/include/freetype/ftgasp.h b/include/freetype/ftgasp.h index 91a769e..5e978e5 100644 --- a/include/freetype/ftgasp.h +++ b/include/freetype/ftgasp.h @@ -4,7 +4,7 @@ /* */ /* Access of TrueType's `gasp' table (specification). */ /* */ -/* Copyright 2007, 2008 by */ +/* Copyright 2007, 2008, 2011 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -62,19 +62,27 @@ * It is up to the client to decide what to do. * * FT_GASP_DO_GRIDFIT :: - * Grid-fitting and hinting should be performed at the specified ppem. - * This *really* means TrueType bytecode interpretation. + * Grid-fitting and hinting should be performed at the specified ppem. + * This *really* means TrueType bytecode interpretation. If this bit + * is not set, no hinting gets applied. * * FT_GASP_DO_GRAY :: - * Anti-aliased rendering should be performed at the specified ppem. + * Anti-aliased rendering should be performed at the specified ppem. + * If not set, do monochrome rendering. * * FT_GASP_SYMMETRIC_SMOOTHING :: - * Smoothing along multiple axes must be used with ClearType. + * If set, smoothing along multiple axes must be used with ClearType. * * FT_GASP_SYMMETRIC_GRIDFIT :: * Grid-fitting must be used with ClearType's symmetric smoothing. * * @note: + * The bit-flags `FT_GASP_DO_GRIDFIT' and `FT_GASP_DO_GRAY' are to be + * used for standard font rasterization only. Independently of that, + * `FT_GASP_SYMMETRIC_SMOOTHING' and `FT_GASP_SYMMETRIC_GRIDFIT' are to + * be used if ClearType is enabled (and `FT_GASP_DO_GRIDFIT' and + * `FT_GASP_DO_GRAY' are consequently ignored). + * * `ClearType' is Microsoft's implementation of LCD rendering, partly * protected by patents. * |