1 /*
2 * Copyright © 2020 Valve Corporation
3 *
4 * based on amdgpu winsys.
5 * Copyright © 2016 Red Hat.
6 * Copyright © 2016 Bas Nieuwenhuizen
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the next
16 * paragraph) shall be included in all copies or substantial portions of the
17 * Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
24 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
25 * IN THE SOFTWARE.
26 */
27
28 #include "radv_null_bo.h"
29 #include "util/u_memory.h"
30
31 static VkResult
radv_null_winsys_bo_create(struct radeon_winsys * _ws,uint64_t size,unsigned alignment,enum radeon_bo_domain initial_domain,enum radeon_bo_flag flags,unsigned priority,uint64_t address,struct radeon_winsys_bo ** out_bo)32 radv_null_winsys_bo_create(struct radeon_winsys *_ws, uint64_t size, unsigned alignment,
33 enum radeon_bo_domain initial_domain, enum radeon_bo_flag flags,
34 unsigned priority, uint64_t address, struct radeon_winsys_bo **out_bo)
35 {
36 struct radv_null_winsys_bo *bo;
37
38 /* Courtesy for users using NULL to check if they need to destroy the BO. */
39 *out_bo = NULL;
40
41 bo = CALLOC_STRUCT(radv_null_winsys_bo);
42 if (!bo)
43 return VK_ERROR_OUT_OF_HOST_MEMORY;
44
45 bo->ptr = malloc(size);
46 if (!bo->ptr)
47 goto error_ptr_alloc;
48
49 *out_bo = (struct radeon_winsys_bo *)bo;
50 return VK_SUCCESS;
51 error_ptr_alloc:
52 FREE(bo);
53 return VK_ERROR_OUT_OF_HOST_MEMORY;
54 }
55
56 static void *
radv_null_winsys_bo_map(struct radeon_winsys_bo * _bo)57 radv_null_winsys_bo_map(struct radeon_winsys_bo *_bo)
58 {
59 struct radv_null_winsys_bo *bo = radv_null_winsys_bo(_bo);
60 return bo->ptr;
61 }
62
63 static void
radv_null_winsys_bo_unmap(struct radeon_winsys_bo * _bo)64 radv_null_winsys_bo_unmap(struct radeon_winsys_bo *_bo)
65 {
66 }
67
68 static void
radv_null_winsys_bo_destroy(struct radeon_winsys * _ws,struct radeon_winsys_bo * _bo)69 radv_null_winsys_bo_destroy(struct radeon_winsys *_ws, struct radeon_winsys_bo *_bo)
70 {
71 struct radv_null_winsys_bo *bo = radv_null_winsys_bo(_bo);
72 FREE(bo->ptr);
73 FREE(bo);
74 }
75
76 void
radv_null_bo_init_functions(struct radv_null_winsys * ws)77 radv_null_bo_init_functions(struct radv_null_winsys *ws)
78 {
79 ws->base.buffer_create = radv_null_winsys_bo_create;
80 ws->base.buffer_destroy = radv_null_winsys_bo_destroy;
81 ws->base.buffer_map = radv_null_winsys_bo_map;
82 ws->base.buffer_unmap = radv_null_winsys_bo_unmap;
83 }
84