diff options
Diffstat (limited to 'fitz/filt_basic.c')
| -rw-r--r-- | fitz/filt_basic.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/fitz/filt_basic.c b/fitz/filt_basic.c index 09d63402..ac6a5903 100644 --- a/fitz/filt_basic.c +++ b/fitz/filt_basic.c @@ -14,6 +14,7 @@ struct null_filter { fz_stream *chain; int remain; + int pos; }; static int @@ -21,8 +22,12 @@ read_null(fz_stream *stm, unsigned char *buf, int len) { struct null_filter *state = stm->state; int amount = MIN(len, state->remain); - int n = fz_read(state->chain, buf, amount); + int n; + + fz_seek(state->chain, state->pos, 0); + n = fz_read(state->chain, buf, amount); state->remain -= n; + state->pos += n; return n; } @@ -36,7 +41,7 @@ close_null(fz_context *ctx, void *state_) } fz_stream * -fz_open_null(fz_stream *chain, int len) +fz_open_null(fz_stream *chain, int len, int offset) { struct null_filter *state; fz_context *ctx = chain->ctx; @@ -46,6 +51,7 @@ fz_open_null(fz_stream *chain, int len) state = fz_malloc_struct(ctx, struct null_filter); state->chain = chain; state->remain = len; + state->pos = offset; } fz_catch(ctx) { |