1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
/*
* Copyright © 2022 Collabora Ltd
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#ifndef VK_PIPELINE_LAYOUT_H
#define VK_PIPELINE_LAYOUT_H
#include "vk_object.h"
#include "util/u_atomic.h"
#ifdef __cplusplus
extern "C" {
#endif
struct vk_descriptor_set_layout;
#define VK_MESA_PIPELINE_LAYOUT_MAX_SETS 32
struct vk_pipeline_layout {
struct vk_object_base base;
/** Reference count
*
* It's often necessary to store a pointer to the descriptor set layout in
* the descriptor so that any entrypoint which has access to a descriptor
* set also has the layout. While layouts are often passed into various
* entrypoints, they're notably missing from vkUpdateDescriptorSets(). In
* order to implement descriptor writes, you either need to stash a pointer
* to the descriptor set layout in the descriptor set or you need to copy
* all of the relevant information. Storing a pointer is a lot cheaper.
*
* Because descriptor set layout lifetimes and descriptor set lifetimes are
* not guaranteed to coincide, we have to reference count if we're going to
* do this.
*/
uint32_t ref_cnt;
/** VkPipelineLayoutCreateInfo::flags */
VkPipelineLayoutCreateFlagBits create_flags;
/** Number of descriptor set layouts in this pipeline layout */
uint32_t set_count;
/** Array of pointers to descriptor set layouts, indexed by set index */
struct vk_descriptor_set_layout *set_layouts[VK_MESA_PIPELINE_LAYOUT_MAX_SETS];
/** Destroy callback
*
* Will be initially set to vk_pipeline_layout_destroy() but may be set to
* a driver-specific callback which does driver-specific clean-up and then
* calls vk_pipeline_layout_destroy().
*/
void (*destroy)(struct vk_device *device,
struct vk_pipeline_layout *layout);
};
VK_DEFINE_NONDISP_HANDLE_CASTS(vk_pipeline_layout, base, VkPipelineLayout,
VK_OBJECT_TYPE_PIPELINE_LAYOUT);
void *
vk_pipeline_layout_zalloc(struct vk_device *device, size_t size,
const VkPipelineLayoutCreateInfo *pCreateInfo);
void *
vk_pipeline_layout_multizalloc(struct vk_device *device,
struct vk_multialloc *ma,
const VkPipelineLayoutCreateInfo *pCreateInfo);
void vk_pipeline_layout_destroy(struct vk_device *device,
struct vk_pipeline_layout *layout);
static inline struct vk_pipeline_layout *
vk_pipeline_layout_ref(struct vk_pipeline_layout *layout)
{
assert(layout && layout->ref_cnt >= 1);
p_atomic_inc(&layout->ref_cnt);
return layout;
}
static inline void
vk_pipeline_layout_unref(struct vk_device *device,
struct vk_pipeline_layout *layout)
{
assert(layout && layout->ref_cnt >= 1);
if (p_atomic_dec_zero(&layout->ref_cnt))
layout->destroy(device, layout);
}
#ifdef __cplusplus
}
#endif
#endif /* VK_PIPELINE_LAYOUT_H */
|
