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1 /*
2  * Copyright © 2016 Red Hat.
3  * Copyright © 2016 Bas Nieuwenhuizen
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the "Software"),
7  * to deal in the Software without restriction, including without limitation
8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9  * and/or sell copies of the Software, and to permit persons to whom the
10  * Software is furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice (including the next
13  * paragraph) shall be included in all copies or substantial portions of the
14  * Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22  * IN THE SOFTWARE.
23  */
24 
25 #include <stdlib.h>
26 #include <string.h>
27 #include "vk_descriptors.h"
28 #include "vk_common_entrypoints.h"
29 #include "util/macros.h"
30 
31 static int
binding_compare(const void * av,const void * bv)32 binding_compare(const void* av, const void *bv)
33 {
34    const VkDescriptorSetLayoutBinding *a = (const VkDescriptorSetLayoutBinding*)av;
35    const VkDescriptorSetLayoutBinding *b = (const VkDescriptorSetLayoutBinding*)bv;
36 
37    return (a->binding < b->binding) ? -1 : (a->binding > b->binding) ? 1 : 0;
38 }
39 
40 VkResult
vk_create_sorted_bindings(const VkDescriptorSetLayoutBinding * bindings,unsigned count,VkDescriptorSetLayoutBinding ** sorted_bindings)41 vk_create_sorted_bindings(const VkDescriptorSetLayoutBinding *bindings, unsigned count,
42                           VkDescriptorSetLayoutBinding **sorted_bindings)
43 {
44    if (!count) {
45       *sorted_bindings = NULL;
46       return VK_SUCCESS;
47    }
48 
49    *sorted_bindings = malloc(count * sizeof(VkDescriptorSetLayoutBinding));
50    if (!*sorted_bindings)
51       return VK_ERROR_OUT_OF_HOST_MEMORY;
52 
53    memcpy(*sorted_bindings, bindings, count * sizeof(VkDescriptorSetLayoutBinding));
54    qsort(*sorted_bindings, count, sizeof(VkDescriptorSetLayoutBinding), binding_compare);
55 
56    return VK_SUCCESS;
57 }
58 
59 /*
60  * For drivers that don't have mutable state in buffers, images, image views, or
61  * samplers, there's no need to save/restore anything to get the same
62  * descriptor back as long as the user uses the same GPU virtual address. In
63  * this case, the following EXT_descriptor_buffer functions are trivial.
64  */
65 VKAPI_ATTR VkResult VKAPI_CALL
vk_common_GetBufferOpaqueCaptureDescriptorDataEXT(VkDevice device,const VkBufferCaptureDescriptorDataInfoEXT * pInfo,void * pData)66 vk_common_GetBufferOpaqueCaptureDescriptorDataEXT(VkDevice device,
67                                                   const VkBufferCaptureDescriptorDataInfoEXT *pInfo,
68                                                   void *pData)
69 {
70    return VK_SUCCESS;
71 }
72 
73 VKAPI_ATTR VkResult VKAPI_CALL
vk_common_GetImageOpaqueCaptureDescriptorDataEXT(VkDevice device,const VkImageCaptureDescriptorDataInfoEXT * pInfo,void * pData)74 vk_common_GetImageOpaqueCaptureDescriptorDataEXT(VkDevice device,
75                                                  const VkImageCaptureDescriptorDataInfoEXT *pInfo,
76                                                  void *pData)
77 {
78    return VK_SUCCESS;
79 }
80 
81 VKAPI_ATTR VkResult VKAPI_CALL
vk_common_GetImageViewOpaqueCaptureDescriptorDataEXT(VkDevice device,const VkImageViewCaptureDescriptorDataInfoEXT * pInfo,void * pData)82 vk_common_GetImageViewOpaqueCaptureDescriptorDataEXT(VkDevice device,
83                                                      const VkImageViewCaptureDescriptorDataInfoEXT *pInfo,
84                                                      void *pData)
85 {
86    return VK_SUCCESS;
87 }
88 
89 VKAPI_ATTR VkResult VKAPI_CALL
vk_common_GetSamplerOpaqueCaptureDescriptorDataEXT(VkDevice _device,const VkSamplerCaptureDescriptorDataInfoEXT * pInfo,void * pData)90 vk_common_GetSamplerOpaqueCaptureDescriptorDataEXT(VkDevice _device,
91                                                    const VkSamplerCaptureDescriptorDataInfoEXT *pInfo,
92                                                    void *pData)
93 {
94    return VK_SUCCESS;
95 }
96 
97 VKAPI_ATTR VkResult VKAPI_CALL
vk_common_GetAccelerationStructureOpaqueCaptureDescriptorDataEXT(VkDevice device,const VkAccelerationStructureCaptureDescriptorDataInfoEXT * pInfo,void * pData)98 vk_common_GetAccelerationStructureOpaqueCaptureDescriptorDataEXT(VkDevice device,
99                                                                  const VkAccelerationStructureCaptureDescriptorDataInfoEXT *pInfo,
100                                                                  void *pData)
101 {
102    return VK_SUCCESS;
103 }
104