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1 /* | 1 /* |
2 * Copyright 2016 Google Inc. | 2 * Copyright 2016 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef GrVkDescriptorPool_DEFINED | 8 #ifndef GrVkDescriptorPool_DEFINED |
9 #define GrVkDescriptorPool_DEFINED | 9 #define GrVkDescriptorPool_DEFINED |
10 | 10 |
11 #include "GrVkResource.h" | 11 #include "GrVkResource.h" |
12 | 12 |
13 #include "vulkan/vulkan.h" | 13 #include "vulkan/vulkan.h" |
14 | 14 |
15 class GrVkGpu; | 15 class GrVkGpu; |
16 | 16 |
| 17 /** |
| 18 * We require that all descriptor sets are of a single descriptor type. We also
use a pool to only |
| 19 * make one type of descriptor set. Thus a single VkDescriptorPool will only all
ocated space for |
| 20 * for one type of descriptor. |
| 21 */ |
17 class GrVkDescriptorPool : public GrVkResource { | 22 class GrVkDescriptorPool : public GrVkResource { |
18 public: | 23 public: |
19 class DescriptorTypeCounts { | 24 explicit GrVkDescriptorPool(const GrVkGpu* gpu, VkDescriptorType type, uint3
2_t count); |
20 public: | |
21 DescriptorTypeCounts() { | |
22 memset(fDescriptorTypeCount, 0, sizeof(fDescriptorTypeCount)); | |
23 } | |
24 | |
25 void setTypeCount(VkDescriptorType type, uint8_t count); | |
26 int numPoolSizes() const; | |
27 | |
28 // Determines if for each i, that.fDescriptorTypeCount[i] <= fDescriptor
TypeCount[i]; | |
29 bool isSuperSet(const DescriptorTypeCounts& that) const; | |
30 private: | |
31 uint8_t fDescriptorTypeCount[VK_DESCRIPTOR_TYPE_RANGE_SIZE]; | |
32 | |
33 friend class GrVkDescriptorPool; | |
34 }; | |
35 | |
36 explicit GrVkDescriptorPool(const GrVkGpu* gpu, const DescriptorTypeCounts&
typeCounts); | |
37 | 25 |
38 VkDescriptorPool descPool() const { return fDescPool; } | 26 VkDescriptorPool descPool() const { return fDescPool; } |
39 | 27 |
40 void reset(const GrVkGpu* gpu); | 28 void reset(const GrVkGpu* gpu); |
41 | 29 |
42 // Returns whether or not this descriptor pool could be used, assuming it ge
ts fully reset and | 30 // Returns whether or not this descriptor pool could be used, assuming it ge
ts fully reset and |
43 // not in use by another draw, to support the requested typeCounts. | 31 // not in use by another draw, to support the requested type and count. |
44 bool isCompatible(const DescriptorTypeCounts& typeCounts) const; | 32 bool isCompatible(VkDescriptorType type, uint32_t count) const; |
45 | 33 |
46 private: | 34 private: |
47 void freeGPUData(const GrVkGpu* gpu) const override; | 35 void freeGPUData(const GrVkGpu* gpu) const override; |
48 | 36 |
49 DescriptorTypeCounts fTypeCounts; | 37 VkDescriptorType fType; |
| 38 uint32_t fCount; |
50 VkDescriptorPool fDescPool; | 39 VkDescriptorPool fDescPool; |
51 | 40 |
52 typedef GrVkResource INHERITED; | 41 typedef GrVkResource INHERITED; |
53 }; | 42 }; |
54 | 43 |
55 #endif | 44 #endif |
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