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1 /*
2  * Copyright 2021 Google LLC
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 skgpu_graphite_Recording_DEFINED
9 #define skgpu_graphite_Recording_DEFINED
10 
11 #include "include/core/SkRefCnt.h"
12 #include "include/private/SkChecksum.h"
13 
14 #include <memory>
15 #include <unordered_set>
16 #include <vector>
17 
18 namespace skgpu::graphite {
19 
20 class CommandBuffer;
21 class RecordingPriv;
22 class Resource;
23 class ResourceProvider;
24 class TaskGraph;
25 class Texture;
26 class TextureInfo;
27 class TextureProxy;
28 
29 class Recording final {
30 public:
31     ~Recording();
32 
33     RecordingPriv priv();
34 
35 #if GRAPHITE_TEST_UTILS
36     bool isTargetProxyInstantiated() const;
37 #endif
38 
39 private:
40     friend class Recorder;  // for ctor and LazyProxyData
41     friend class RecordingPriv;
42 
43     // LazyProxyData is used if this recording should be replayed to a target that is provided on
44     // replay, and it handles the target proxy's instantiation with the provided target.
45     class LazyProxyData {
46     public:
47         LazyProxyData(const TextureInfo&);
48 
49         TextureProxy* lazyProxy();
50         sk_sp<TextureProxy> refLazyProxy();
51 
52         bool lazyInstantiate(ResourceProvider*, sk_sp<Texture>);
53 
54     private:
55         sk_sp<Texture> fTarget;
56         sk_sp<TextureProxy> fTargetProxy;
57     };
58 
59     struct ProxyHash {
operatorProxyHash60         std::size_t operator()(const sk_sp<TextureProxy>& proxy) const {
61             return SkGoodHash()(proxy.get());
62         }
63     };
64 
65     Recording(std::unique_ptr<TaskGraph>,
66               std::unordered_set<sk_sp<TextureProxy>, ProxyHash>&& nonVolatileLazyProxies,
67               std::unordered_set<sk_sp<TextureProxy>, ProxyHash>&& volatileLazyProxies,
68               std::unique_ptr<LazyProxyData> targetProxyData);
69 
70     bool addCommands(CommandBuffer*, ResourceProvider*);
71     void addResourceRef(sk_sp<Resource>);
72 
73     std::unique_ptr<TaskGraph> fGraph;
74     // We don't always take refs to all resources used by specific Tasks (e.g. a common buffer used
75     // for uploads). Instead we'll just hold onto one ref for those Resources outside the Tasks.
76     // Those refs are stored in the array here and will eventually be passed onto a CommandBuffer
77     // when the Recording adds its commands.
78     std::vector<sk_sp<Resource>> fExtraResourceRefs;
79 
80     std::unordered_set<sk_sp<TextureProxy>, ProxyHash> fNonVolatileLazyProxies;
81     std::unordered_set<sk_sp<TextureProxy>, ProxyHash> fVolatileLazyProxies;
82 
83     std::unique_ptr<LazyProxyData> fTargetProxyData;
84 };
85 
86 } // namespace skgpu::graphite
87 
88 #endif // skgpu_graphite_Recording_DEFINED
89