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Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_ringbuffer.h')
-rw-r--r--mesalib/src/gallium/auxiliary/util/u_ringbuffer.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_ringbuffer.h b/mesalib/src/gallium/auxiliary/util/u_ringbuffer.h
new file mode 100644
index 000000000..177199e94
--- /dev/null
+++ b/mesalib/src/gallium/auxiliary/util/u_ringbuffer.h
@@ -0,0 +1,29 @@
+
+#ifndef UTIL_RINGBUFFER_H
+#define UTIL_RINGBUFFER_H
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_defines.h" /* only for pipe_error! */
+
+/* Generic header
+ */
+struct util_packet {
+ unsigned dwords:8;
+ unsigned data24:24;
+};
+
+struct util_ringbuffer;
+
+struct util_ringbuffer *util_ringbuffer_create( unsigned dwords );
+
+void util_ringbuffer_destroy( struct util_ringbuffer *ring );
+
+void util_ringbuffer_enqueue( struct util_ringbuffer *ring,
+ const struct util_packet *packet );
+
+enum pipe_error util_ringbuffer_dequeue( struct util_ringbuffer *ring,
+ struct util_packet *packet,
+ unsigned max_dwords,
+ boolean wait );
+
+#endif