added null writer.

diff --git a/lib/bitio.c b/lib/bitio.c
index 06fdfcc..8200120 100644 (file)
--- a/lib/bitio.c
+++ b/lib/bitio.c
@@ -160,6 +160,26 @@ void writer_init_filewriter2(struct writer_t*w, char*filename)
     ((struct filewrite_t*)w->internal)->free_handle = 1;
 }
 
+/* ---------------------------- null writer ------------------------------- */
+
+static int writer_nullwrite_write(struct writer_t*w, void* data, int len) 
+{
+    return len;
+}
+static void writer_nullwrite_finish(struct writer_t*w)
+{
+}
+void writer_init_nullwriter(struct writer_t*w)
+{
+    memset(w, 0, sizeof(struct writer_t));
+    w->write = writer_nullwrite_write;
+    w->finish = writer_nullwrite_finish;
+    w->internal = 0;
+    w->type = WRITER_TYPE_NULL;
+    w->bitpos = 0;
+    w->mybyte = 0;
+    w->pos = 0;
+}
 /* ---------------------------- zlibinflate writer -------------------------- */
 
 struct zlibinflate_t

diff --git a/lib/bitio.h b/lib/bitio.h
index 3781a03..e79bea1 100644 (file)
--- a/lib/bitio.h
+++ b/lib/bitio.h
@@ -17,6 +17,7 @@
 #define WRITER_TYPE_FILE 0
 #define WRITER_TYPE_MEM  1
 #define WRITER_TYPE_ZLIB 2
+#define WRITER_TYPE_NULL 3
 
 struct reader_t
 {
@@ -59,5 +60,6 @@ void writer_init_filewriter(struct writer_t*w, int handle);
 void writer_init_filewriter2(struct writer_t*w, char*filename);
 void writer_init_zlibdeflate(struct writer_t*w, struct writer_t*output);
 void writer_init_memwriter(struct writer_t*r, void*data, int length);
+void writer_init_nullwriter(struct writer_t*w);
 
 #endif //__rfxswf_bitio_h__