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
31static VkResult
32radv_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;
51error_ptr_alloc:
52   FREE(bo);
53   return VK_ERROR_OUT_OF_HOST_MEMORY;
54}
55
56static void *
57radv_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
63static void
64radv_null_winsys_bo_unmap(struct radeon_winsys_bo *_bo)
65{
66}
67
68static VkResult
69radv_null_winsys_bo_make_resident(struct radeon_winsys *_ws, struct radeon_winsys_bo *_bo,
70                                  bool resident)
71{
72   return VK_SUCCESS;
73}
74
75static void
76radv_null_winsys_bo_destroy(struct radeon_winsys *_ws, struct radeon_winsys_bo *_bo)
77{
78   struct radv_null_winsys_bo *bo = radv_null_winsys_bo(_bo);
79   FREE(bo->ptr);
80   FREE(bo);
81}
82
83void
84radv_null_bo_init_functions(struct radv_null_winsys *ws)
85{
86   ws->base.buffer_create = radv_null_winsys_bo_create;
87   ws->base.buffer_destroy = radv_null_winsys_bo_destroy;
88   ws->base.buffer_map = radv_null_winsys_bo_map;
89   ws->base.buffer_unmap = radv_null_winsys_bo_unmap;
90   ws->base.buffer_make_resident = radv_null_winsys_bo_make_resident;
91}
92