Add codecs to librbcodec.

Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97
Reviewed-on: http://gerrit.rockbox.org/137
Reviewed-by: Nils Wallménius <nils@rockbox.org>
Tested-by: Nils Wallménius <nils@rockbox.org>

1 files changed, 37 insertions, 0 deletions

diff --git a/lib/rbcodec/codecs/librm/bytestream.h b/lib/rbcodec/codecs/librm/bytestream.h
new file mode 100644
index 0000000000..c2a968a4bd
--- /dev/null
+++ b/lib/rbcodec/codecs/librm/bytestream.h
@@ -0,0 +1,37 @@
+#ifndef RM_BYTESTREAM_H
+#define RM_BYTESTREAM_H
+
+#include <inttypes.h>
+
+static inline void advance_buffer(uint8_t **buf, int val)
+{
+    *buf += val;
+}
+
+static inline uint8_t rm_get_uint8(uint8_t *buf)
+{
+    return (uint8_t)buf[0];
+}
+
+static inline uint16_t rm_get_uint16be(uint8_t *buf)
+{
+    return (uint16_t)((buf[0] << 8)|buf[1]);
+}
+
+static inline uint32_t rm_get_uint32be(uint8_t *buf)
+{
+    return (uint32_t)((buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3]);
+}
+
+static inline uint16_t rm_get_uint16le(uint8_t *buf)
+{
+    return (uint16_t)((buf[1] << 8)|buf[0]);
+}
+
+static inline uint32_t rm_get_uint32le(uint8_t *buf)
+{
+    return (uint32_t)((buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf[0]);
+}
+
+#endif /* RM_BYTESTREAM_H */
+