1 /*
2 * Copyright © Microsoft 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
24 #ifndef D3D12_DESCRIPTOR_POOL_H
25 #define D3D12_DESCRIPTOR_POOL_H
26
27 #include "d3d12_common.h"
28
29 struct d3d12_descriptor_pool;
30 struct d3d12_descriptor_heap;
31
32 struct d3d12_descriptor_handle {
33 D3D12_CPU_DESCRIPTOR_HANDLE cpu_handle;
34 D3D12_GPU_DESCRIPTOR_HANDLE gpu_handle;
35 struct d3d12_descriptor_heap *heap;
36 };
37
38 inline bool
d3d12_descriptor_handle_is_allocated(struct d3d12_descriptor_handle * handle)39 d3d12_descriptor_handle_is_allocated(struct d3d12_descriptor_handle *handle)
40 {
41 return (handle->heap != NULL);
42 }
43
44 void
45 d3d12_descriptor_handle_free(struct d3d12_descriptor_handle *handle);
46
47 /* Offline Descriptor Pool */
48
49 struct d3d12_descriptor_pool*
50 d3d12_descriptor_pool_new(struct d3d12_screen *screen,
51 D3D12_DESCRIPTOR_HEAP_TYPE type,
52 uint32_t num_descriptors);
53
54 void
55 d3d12_descriptor_pool_free(struct d3d12_descriptor_pool *pool);
56
57 uint32_t
58 d3d12_descriptor_pool_alloc_handle(struct d3d12_descriptor_pool *pool,
59 struct d3d12_descriptor_handle *handle);
60
61
62 /* Online/Offline Descriptor Heaps */
63
64 struct d3d12_descriptor_heap*
65 d3d12_descriptor_heap_new(ID3D12Device *device,
66 D3D12_DESCRIPTOR_HEAP_TYPE type,
67 D3D12_DESCRIPTOR_HEAP_FLAGS flags,
68 uint32_t num_descriptors);
69
70 void
71 d3d12_descriptor_heap_free(struct d3d12_descriptor_heap *heap);
72
73 ID3D12DescriptorHeap*
74 d3d12_descriptor_heap_get(struct d3d12_descriptor_heap *heap);
75
76 void
77 d2d12_descriptor_heap_get_next_handle(struct d3d12_descriptor_heap *heap,
78 struct d3d12_descriptor_handle *handle);
79
80 uint32_t
81 d3d12_descriptor_heap_get_remaining_handles(struct d3d12_descriptor_heap *heap);
82
83 uint32_t
84 d3d12_descriptor_heap_alloc_handle(struct d3d12_descriptor_heap *heap,
85 struct d3d12_descriptor_handle *handle);
86
87 void
88 d3d12_descriptor_heap_append_handles(struct d3d12_descriptor_heap *heap,
89 D3D12_CPU_DESCRIPTOR_HANDLE *handles,
90 unsigned num_handles);
91
92 void
93 d3d12_descriptor_heap_clear(struct d3d12_descriptor_heap *heap);
94
95 #endif
96