tzh
2024-08-22 c7d0944258c7d0943aa7b2211498fd612971ce27
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#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