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 #ifndef GrTextureRenderTargetProxy_DEFINED
9 #define GrTextureRenderTargetProxy_DEFINED
10 
11 #include "src/gpu/GrRenderTargetProxy.h"
12 #include "src/gpu/GrTextureProxy.h"
13 
14 #ifdef SK_BUILD_FOR_WIN
15 // Windows gives warnings about inheriting asTextureProxy/asRenderTargetProxy via dominance.
16 #pragma warning(push)
17 #pragma warning(disable: 4250)
18 #endif
19 
20 // This class delays the acquisition of RenderTargets that are also textures until
21 // they are actually required
22 // Beware: the uniqueID of the TextureRenderTargetProxy will usually be different than
23 // the uniqueID of the RenderTarget/Texture it represents!
24 class GrTextureRenderTargetProxy : public GrRenderTargetProxy, public GrTextureProxy {
25 private:
26     // DDL TODO: rm the GrSurfaceProxy friending
27     friend class GrSurfaceProxy; // for ctors
28     friend class GrProxyProvider; // for ctors
29 
30     // Deferred version
31     GrTextureRenderTargetProxy(const GrCaps&,
32                                const GrBackendFormat&,
33                                SkISize,
34                                int sampleCnt,
35                                GrMipMapped,
36                                GrMipMapsStatus,
37                                SkBackingFit,
38                                SkBudgeted,
39                                GrProtected,
40                                GrInternalSurfaceFlags,
41                                UseAllocator);
42 
43     // Lazy-callback version
44     GrTextureRenderTargetProxy(const GrCaps&,
45                                LazyInstantiateCallback&&,
46                                const GrBackendFormat&,
47                                SkISize,
48                                int sampleCnt,
49                                GrMipMapped,
50                                GrMipMapsStatus,
51                                SkBackingFit,
52                                SkBudgeted,
53                                GrProtected,
54                                GrInternalSurfaceFlags,
55                                UseAllocator);
56 
57     // Wrapped version
58     GrTextureRenderTargetProxy(sk_sp<GrSurface>,
59                                UseAllocator);
60 
61     void initSurfaceFlags(const GrCaps&);
62 
63     bool instantiate(GrResourceProvider*) override;
64     sk_sp<GrSurface> createSurface(GrResourceProvider*) const override;
65 
66     size_t onUninstantiatedGpuMemorySize(const GrCaps&) const override;
67 
68     SkDEBUGCODE(void onValidateSurface(const GrSurface*) override;)
69 };
70 
71 #ifdef SK_BUILD_FOR_WIN
72 #pragma warning(pop)
73 #endif
74 
75 #endif
76