1 /*
2 * Copyright © 2021 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23 #ifndef VK_SYNC_BINARY_H
24 #define VK_SYNC_BINARY_H
25
26 #include "vk_sync.h"
27
28 #ifdef __cplusplus
29 extern "C" {
30 #endif
31
32 struct vk_sync_binary_type {
33 struct vk_sync_type sync;
34 const struct vk_sync_type *timeline_type;
35 };
36
37 struct vk_sync_binary_type
38 vk_sync_binary_get_type(const struct vk_sync_type *timeline_type);
39
40 /** Implements a binary vk_sync type on top of a timeline vk_sync
41 *
42 * This is useful when targeting Windows APIs such as D3D12 which only have
43 * timelines and have no concept of a binary synchronization object. Because
44 * binary vk_sync emulation requires tracking additional state (the next time
45 * point), fences and semaphores created from this type cannot support any of
46 * the sharing APIs.
47 */
48 struct vk_sync_binary {
49 struct vk_sync sync;
50
51 uint64_t next_point;
52
53 struct vk_sync timeline;
54 };
55
56 VkResult vk_sync_binary_init(struct vk_device *device,
57 struct vk_sync *sync,
58 uint64_t initial_value);
59
60 static inline bool
vk_sync_type_is_vk_sync_binary(const struct vk_sync_type * type)61 vk_sync_type_is_vk_sync_binary(const struct vk_sync_type *type)
62 {
63 return type->init == vk_sync_binary_init;
64 }
65
66 static inline struct vk_sync_binary *
vk_sync_as_binary(struct vk_sync * sync)67 vk_sync_as_binary(struct vk_sync *sync)
68 {
69 if (!vk_sync_type_is_vk_sync_binary(sync->type))
70 return NULL;
71
72 return container_of(sync, struct vk_sync_binary, sync);
73 }
74
75 #ifdef __cplusplus
76 }
77 #endif
78
79 #endif /* VK_TIMELINE_H */
80