1 /*
2 * Copyright 2016 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 #include "src/gpu/ganesh/vk/GrVkDescriptorPool.h"
9
10 #include "src/gpu/ganesh/vk/GrVkGpu.h"
11 #include "src/gpu/ganesh/vk/GrVkUtil.h"
12
13 #include <string.h>
14
Create(GrVkGpu * gpu,VkDescriptorType type,uint32_t count)15 GrVkDescriptorPool* GrVkDescriptorPool::Create(GrVkGpu* gpu, VkDescriptorType type,
16 uint32_t count) {
17 VkDescriptorPoolSize poolSize;
18 memset(&poolSize, 0, sizeof(VkDescriptorPoolSize));
19 poolSize.descriptorCount = count;
20 poolSize.type = type;
21
22 VkDescriptorPoolCreateInfo createInfo;
23 memset(&createInfo, 0, sizeof(VkDescriptorPoolCreateInfo));
24 createInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
25 createInfo.pNext = nullptr;
26 createInfo.flags = 0;
27 // This is an over/conservative estimate since each set may contain more than count descriptors.
28 createInfo.maxSets = count;
29 createInfo.poolSizeCount = 1;
30 createInfo.pPoolSizes = &poolSize;
31
32 VkDescriptorPool pool;
33 VkResult result;
34 GR_VK_CALL_RESULT(gpu, result, CreateDescriptorPool(gpu->device(), &createInfo, nullptr,
35 &pool));
36 if (result != VK_SUCCESS) {
37 return nullptr;
38 }
39 return new GrVkDescriptorPool(gpu, pool, type, count);
40 }
41
GrVkDescriptorPool(const GrVkGpu * gpu,VkDescriptorPool pool,VkDescriptorType type,uint32_t count)42 GrVkDescriptorPool::GrVkDescriptorPool(const GrVkGpu* gpu, VkDescriptorPool pool,
43 VkDescriptorType type, uint32_t count)
44 : INHERITED(gpu), fType(type), fCount(count), fDescPool(pool) {}
45
isCompatible(VkDescriptorType type,uint32_t count) const46 bool GrVkDescriptorPool::isCompatible(VkDescriptorType type, uint32_t count) const {
47 return fType == type && count <= fCount;
48 }
49
freeGPUData() const50 void GrVkDescriptorPool::freeGPUData() const {
51 // Destroying the VkDescriptorPool will automatically free and delete any VkDescriptorSets
52 // allocated from the pool.
53 GR_VK_CALL(fGpu->vkInterface(), DestroyDescriptorPool(fGpu->device(), fDescPool, nullptr));
54 }
55