[master] Ported functions from libpng-1.4.0rc01:

png_calloc(), png_get_io_state(),
    png_get_io_chunk_name(), png_set_premultiply_alpha, and
    png_do_read_premultiply_alpha().
This commit is contained in:
Glenn Randers-Pehrson
2009-10-29 23:47:05 -05:00
parent bc2ab12f99
commit 4b14b35208
17 changed files with 626 additions and 48 deletions

View File

@@ -939,7 +939,27 @@ png_get_user_height_max (png_structp png_ptr)
{
return (png_ptr? png_ptr->user_height_max : 0);
}
/* This function was added to libpng 1.2.41 */
png_uint_32 PNGAPI
png_get_chunk_cache_max (png_structp png_ptr)
{
return (png_ptr? png_ptr->user_chunk_cache_max? 0x7fffffffL :
png_ptr->user_chunk_cache_max - 1 : 0);
}
#endif /* ?PNG_SET_USER_LIMITS_SUPPORTED */
#ifdef PNG_IO_STATE_SUPPORTED
png_uint_32 PNGAPI
png_get_io_state (png_structp png_ptr)
{
return png_ptr->io_state;
}
png_bytep PNGAPI
png_get_io_chunk_name (png_structp png_ptr)
{
return png_ptr->chunk_name;
}
#endif /* ?PNG_IO_STATE_SUPPORTED */
#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */