subtitle/osd cache - pre-render text to a buffer with alpha and bitmap separated

- it solves overlapping alpha problem
- speed up osd rendering (it renders bigger area but in a single pass)
patch by Jindrich Makovicka <makovick@kmlinux.fjfi.cvut.cz>
some cleanup by me


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@7122 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 5 insertions, 0 deletions

diff --git a/libvo/sub.h b/libvo/sub.h
index 6305531176..33fc278cbb 100644
--- a/libvo/sub.h
+++ b/libvo/sub.h
@@ -40,6 +40,11 @@ typedef struct mp_osd_obj_s {
 	    int elems;
 	} progbar;
     } params;
+    int stride;
+
+    int allocated;
+    unsigned char *alpha_buffer;
+    unsigned char *bitmap_buffer;
 } mp_osd_obj_t;