tree 814cf70a158802923a40d9dc045dd8eefed1baf0
parent 106bacf5022e8c7c8bdcd8407efd64fb6db182b4
author Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com> 1562416518 +0530
committer Werner Lemberg <wl@gnu.org> 1566891073 +0200

[woff2] Copy un-transformed tables to sfnt stream.

Copy un-transformed tables to the sfnt stream.

* src/sfnt/sfwoff2.c: (WRITE_SFNT_BUF): New macro.
(write_buf): New function.  Extend memory of `dst' buffer and copy
bytes from `src'.
(compute_ULong_sum): New function.  Calculate checksum of table.
(reconstruct_font): Change `FT_Byte* sfnt' to `FT_Byte**
sfnt_bytes'.  This has been done because we reallocate memory to
`sfnt' multiple times, which may change the pointer value of `sfnt'.
This new pointer must be propogated back to the caller.  Same reason
for using a double pointer in `write_buf'.

* src/sfnt/woff2tags.h (WOFF2_DEFAULT_MAX_SIZE): New macro used for
overflow checking.