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| author | eugeni <eugeni@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2006-09-24 16:15:47 +0000 |
|---|---|---|
| committer | eugeni <eugeni@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2006-09-24 16:15:47 +0000 |
| commit | 74727dc564db81e4748423668ba618e6c69c2070 (patch) | |
| tree | 903eef736b2604e393b83450cac6594f8d2e3a8c | |
| parent | 1b0251e7ad18ad4bc3772487e1e4abe237cd1752 (diff) | |
| download | mpv-74727dc564db81e4748423668ba618e6c69c2070.tar.bz2 mpv-74727dc564db81e4748423668ba618e6c69c2070.tar.xz | |
Cosmetics: add some comments.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@19972 b3059339-0415-0410-9bf9-f77b7e298cf2
| -rw-r--r-- | libass/ass_bitmap.c | 6 | ||||
| -rw-r--r-- | libass/ass_bitmap.h | 10 |
2 files changed, 16 insertions, 0 deletions
diff --git a/libass/ass_bitmap.c b/libass/ass_bitmap.c index 8eee401205..7a587947f2 100644 --- a/libass/ass_bitmap.c +++ b/libass/ass_bitmap.c @@ -174,6 +174,12 @@ static bitmap_t* glyph_to_bitmap_internal(FT_Glyph glyph, int bord) return bm; } +/** + * \brief fix outline bitmap and generate shadow bitmap + * Two things are done here: + * 1. Glyph bitmap is subtracted from outline bitmap. This way looks much better in some cases. + * 2. Shadow bitmap is created as a sum of glyph and outline bitmaps. + */ static bitmap_t* fix_outline_and_shadow(bitmap_t* bm_g, bitmap_t* bm_o) { int x, y; diff --git a/libass/ass_bitmap.h b/libass/ass_bitmap.h index 0cf2eb2cb1..9b5d75d9f7 100644 --- a/libass/ass_bitmap.h +++ b/libass/ass_bitmap.h @@ -12,7 +12,17 @@ typedef struct bitmap_s { unsigned char* buffer; // w x h buffer } bitmap_t; +/** + * \brief perform glyph rendering + * \param glyph original glyph + * \param outline_glyph "border" glyph, produced from original by FreeType's glyph stroker + * \param bm_g out: pointer to the bitmap of original glyph is returned here + * \param bm_o out: pointer to the bitmap of outline (border) glyph is returned here + * \param bm_g out: pointer to the bitmap of glyph shadow is returned here + * \param be 1 = produces blurred bitmaps, 0 = normal bitmaps + */ int glyph_to_bitmap(ass_synth_priv_t* priv, FT_Glyph glyph, FT_Glyph outline_glyph, bitmap_t** bm_g, bitmap_t** bm_o, bitmap_t** bm_s, int be); + void ass_free_bitmap(bitmap_t* bm); #endif |