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authoreugeni <eugeni@b3059339-0415-0410-9bf9-f77b7e298cf2>2006-09-24 16:15:47 +0000
committereugeni <eugeni@b3059339-0415-0410-9bf9-f77b7e298cf2>2006-09-24 16:15:47 +0000
commit74727dc564db81e4748423668ba618e6c69c2070 (patch)
tree903eef736b2604e393b83450cac6594f8d2e3a8c
parent1b0251e7ad18ad4bc3772487e1e4abe237cd1752 (diff)
downloadmpv-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.c6
-rw-r--r--libass/ass_bitmap.h10
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