1
2#include "i915_sw_winsys.h"
3#include "util/u_memory.h"
4#include "util/u_atomic.h"
5#include "util/u_inlines.h"
6
7struct i915_sw_fence
8{
9   struct pipe_reference reference;
10};
11
12struct pipe_fence_handle *
13i915_sw_fence_create()
14{
15   struct i915_sw_fence *fence = CALLOC_STRUCT(i915_sw_fence);
16
17   pipe_reference_init(&fence->reference, 1);
18
19   return (struct pipe_fence_handle *)fence;
20}
21
22static void
23i915_sw_fence_reference(struct i915_winsys *iws,
24                        struct pipe_fence_handle **ptr,
25                        struct pipe_fence_handle *fence)
26{
27   struct i915_sw_fence *old = (struct i915_sw_fence *)*ptr;
28   struct i915_sw_fence *f = (struct i915_sw_fence *)fence;
29
30   if (pipe_reference(&((struct i915_sw_fence *)(*ptr))->reference, &f->reference)) {
31      FREE(old);
32   }
33   *ptr = fence;
34}
35
36static int
37i915_sw_fence_signalled(struct i915_winsys *iws,
38                        struct pipe_fence_handle *fence)
39{
40   assert(0);
41
42   return 0;
43}
44
45static int
46i915_sw_fence_finish(struct i915_winsys *iws,
47                     struct pipe_fence_handle *fence)
48{
49   return 0;
50}
51
52void
53i915_sw_winsys_init_fence_functions(struct i915_sw_winsys *isws)
54{
55   isws->base.fence_reference = i915_sw_fence_reference;
56   isws->base.fence_signalled = i915_sw_fence_signalled;
57   isws->base.fence_finish = i915_sw_fence_finish;
58}
59