1 //
2 // Copyright 2019 The ANGLE Project Authors. All rights reserved.
3 // Use of this source code is governed by a BSD-style license that can be
4 // found in the LICENSE file.
5 //
6 // PersistentCommandPool.h:
7 //    Defines the class interface for PersistentCommandBuffer
8 //
9 
10 #ifndef LIBANGLE_RENDERER_VULKAN_PERSISTENTCOMMANDPOOL_H_
11 #define LIBANGLE_RENDERER_VULKAN_PERSISTENTCOMMANDPOOL_H_
12 
13 #include <vector>
14 
15 #include "libANGLE/renderer/vulkan/vk_utils.h"
16 #include "libANGLE/renderer/vulkan/vk_wrapper.h"
17 
18 namespace rx
19 {
20 
21 namespace vk
22 {
23 
24 class PersistentCommandPool final
25 {
26   public:
27     PersistentCommandPool();
28     ~PersistentCommandPool();
29 
30     void destroy(VkDevice device);
31     angle::Result init(vk::Context *context, bool hasProtectedContent, uint32_t queueFamilyIndex);
32 
33     angle::Result allocate(vk::Context *context, vk::PrimaryCommandBuffer *commandBufferOut);
34     angle::Result collect(vk::Context *context, vk::PrimaryCommandBuffer &&buffer);
35 
valid()36     bool valid() const { return mCommandPool.valid(); }
37 
38   private:
39     angle::Result allocateCommandBuffer(vk::Context *context);
40 
41     std::vector<vk::PrimaryCommandBuffer> mFreeBuffers;
42 
43     vk::CommandPool mCommandPool;
44 
45     static const int kInitBufferNum = 2;
46 };
47 
48 }  // namespace vk
49 
50 }  // namespace rx
51 
52 #endif
53