/src/skia/include/gpu/GrBackendSemaphore.h
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1 | | /* |
2 | | * Copyright 2017 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 | | #ifndef GrBackendSemaphore_DEFINED |
9 | | #define GrBackendSemaphore_DEFINED |
10 | | |
11 | | #include "include/gpu/GrTypes.h" |
12 | | |
13 | | #include "include/gpu/gl/GrGLTypes.h" |
14 | | #include "include/gpu/mtl/GrMtlTypes.h" |
15 | | #include "include/gpu/vk/GrVkTypes.h" |
16 | | #ifdef SK_DIRECT3D |
17 | | #include "include/gpu/d3d/GrD3DTypesMinimal.h" |
18 | | #endif |
19 | | |
20 | | /** |
21 | | * Wrapper class for passing into and receiving data from Ganesh about a backend semaphore object. |
22 | | */ |
23 | | class GrBackendSemaphore { |
24 | | public: |
25 | | // For convenience we just set the backend here to OpenGL. The GrBackendSemaphore cannot be used |
26 | | // until either initGL or initVulkan are called which will set the appropriate GrBackend. |
27 | | GrBackendSemaphore() |
28 | 0 | : fBackend(GrBackendApi::kOpenGL), fGLSync(nullptr), fIsInitialized(false) {} |
29 | | |
30 | | #ifdef SK_DIRECT3D |
31 | | // We only need to specify these if Direct3D is enabled, because it requires special copy |
32 | | // characteristics. |
33 | | ~GrBackendSemaphore(); |
34 | | GrBackendSemaphore(const GrBackendSemaphore&); |
35 | | GrBackendSemaphore& operator=(const GrBackendSemaphore&); |
36 | | #endif |
37 | | |
38 | 0 | void initGL(GrGLsync sync) { |
39 | 0 | fBackend = GrBackendApi::kOpenGL; |
40 | 0 | fGLSync = sync; |
41 | 0 | fIsInitialized = true; |
42 | 0 | } |
43 | | |
44 | 0 | void initVulkan(VkSemaphore semaphore) { |
45 | 0 | fBackend = GrBackendApi::kVulkan; |
46 | 0 | fVkSemaphore = semaphore; |
47 | 0 | #ifdef SK_VULKAN |
48 | 0 | fIsInitialized = true; |
49 | 0 | #else |
50 | 0 | fIsInitialized = false; |
51 | 0 | #endif |
52 | 0 | } |
53 | | |
54 | | // It is the creator's responsibility to ref the MTLEvent passed in here, via __bridge_retained. |
55 | | // The other end will wrap this BackendSemaphore and take the ref, via __bridge_transfer. |
56 | 0 | void initMetal(GrMTLHandle event, uint64_t value) { |
57 | 0 | fBackend = GrBackendApi::kMetal; |
58 | 0 | fMtlEvent = event; |
59 | 0 | fMtlValue = value; |
60 | 0 | #ifdef SK_METAL |
61 | 0 | fIsInitialized = true; |
62 | 0 | #else |
63 | 0 | fIsInitialized = false; |
64 | 0 | #endif |
65 | 0 | } |
66 | | |
67 | | #ifdef SK_DIRECT3D |
68 | | void initDirect3D(const GrD3DFenceInfo& info) { |
69 | | fBackend = GrBackendApi::kDirect3D; |
70 | | this->assignD3DFenceInfo(info); |
71 | | fIsInitialized = true; |
72 | | } |
73 | | #endif |
74 | | |
75 | 0 | bool isInitialized() const { return fIsInitialized; } |
76 | | |
77 | 0 | GrGLsync glSync() const { |
78 | 0 | if (!fIsInitialized || GrBackendApi::kOpenGL != fBackend) { |
79 | 0 | return nullptr; |
80 | 0 | } |
81 | 0 | return fGLSync; |
82 | 0 | } |
83 | | |
84 | 0 | VkSemaphore vkSemaphore() const { |
85 | 0 | if (!fIsInitialized || GrBackendApi::kVulkan != fBackend) { |
86 | 0 | return VK_NULL_HANDLE; |
87 | 0 | } |
88 | 0 | return fVkSemaphore; |
89 | 0 | } |
90 | | |
91 | 0 | GrMTLHandle mtlSemaphore() const { |
92 | 0 | if (!fIsInitialized || GrBackendApi::kMetal != fBackend) { |
93 | 0 | return nullptr; |
94 | 0 | } |
95 | 0 | return fMtlEvent; |
96 | 0 | } |
97 | | |
98 | 0 | uint64_t mtlValue() const { |
99 | 0 | if (!fIsInitialized || GrBackendApi::kMetal != fBackend) { |
100 | 0 | return 0; |
101 | 0 | } |
102 | 0 | return fMtlValue; |
103 | 0 | } |
104 | | |
105 | | #ifdef SK_DIRECT3D |
106 | | bool getD3DFenceInfo(GrD3DFenceInfo* outInfo) const; |
107 | | #endif |
108 | | |
109 | | private: |
110 | | #ifdef SK_DIRECT3D |
111 | | void assignD3DFenceInfo(const GrD3DFenceInfo& info); |
112 | | #endif |
113 | | |
114 | | GrBackendApi fBackend; |
115 | | union { |
116 | | GrGLsync fGLSync; |
117 | | VkSemaphore fVkSemaphore; |
118 | | GrMTLHandle fMtlEvent; // Expected to be an id<MTLEvent> |
119 | | #ifdef SK_DIRECT3D |
120 | | GrD3DFenceInfo* fD3DFenceInfo; |
121 | | #endif |
122 | | }; |
123 | | uint64_t fMtlValue; |
124 | | bool fIsInitialized; |
125 | | }; |
126 | | |
127 | | #endif |