Changeset 3022:4a04952a6280 in roaraudio

Timestamp:

10/31/09 14:25:50 (14 years ago)

Author:

phi

Branch:

default

Phase:

public

Message:

added basic ringbuffer stuff

File:

• include/libroar/buffer.h (modified) (4 diffs)

include/libroar/buffer.h

@@ -38 +38 @@
 #include <roaraudio.h>
 
-#define ROAR_BUFFER_FLAG_NONE      0
-#define ROAR_BUFFER_FLAG_NOFREE    1
+#define ROAR_BUFFER_FLAG_NONE            0x00
+#define ROAR_BUFFER_FLAG_NOFREE          0x01
+#define ROAR_BUFFER_FLAG_RING            0x02
+#define ROAR_BUFFER_FLAG_FREE_RUNNING    0x04
 
-#define ROAR_BUFFER_SET            0
-#define ROAR_BUFFER_RESET          1
+#define ROAR_BUFFER_SET                     0
+#define ROAR_BUFFER_RESET                   1
+
+struct roar_buffer_ring {
+ size_t read_pos;
+ size_t write_pos;
+};
 
 struct roar_buffer {
@@ -51 +58 @@
  void               * user_data;
  union {
-  void              * vp;
-  int32_t             i32;
+  void                    * vp;
+  int32_t                   i32;
+  struct roar_buffer_ring   ring;
  }                    meta;
  struct roar_buffer * next;
@@ -70 +78 @@
 int roar_buffer_delete   (struct roar_buffer *  buf, struct roar_buffer ** next);
 int roar_buffer_add      (struct roar_buffer *  buf, struct roar_buffer *  next);
+
+int roar_buffer_ring_new (struct roar_buffer ** buf, size_t len, int free_running);
 
 int roar_buffer_get_next (struct roar_buffer *  buf, struct roar_buffer ** next);
@@ -94 +104 @@
 int roar_buffer_ring_stats (struct roar_buffer *  buf, struct roar_buffer_stats * stats);
 
+int roar_buffer_ring_read  (struct roar_buffer *  buf, void * data, size_t * len);
+int roar_buffer_ring_write (struct roar_buffer *  buf, void * data, size_t * len);
+
 #endif