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 "GrRenderTargetProxy.h"
12 #include "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&, const GrBackendFormat&, const GrSurfaceDesc&,
32                                GrSurfaceOrigin, GrMipMapped, SkBackingFit, SkBudgeted,
33                                GrInternalSurfaceFlags);
34 
35     // Lazy-callback version
36     GrTextureRenderTargetProxy(LazyInstantiateCallback&&, LazyInstantiationType,
37                                const GrBackendFormat&, const GrSurfaceDesc& desc, GrSurfaceOrigin,
38                                GrMipMapped, SkBackingFit, SkBudgeted, GrInternalSurfaceFlags);
39 
40     // Wrapped version
41     GrTextureRenderTargetProxy(sk_sp<GrSurface>, GrSurfaceOrigin);
42 
43     bool instantiate(GrResourceProvider*) override;
44     sk_sp<GrSurface> createSurface(GrResourceProvider*) const override;
45 
46     size_t onUninstantiatedGpuMemorySize() const override;
47 
48     SkDEBUGCODE(void onValidateSurface(const GrSurface*) override;)
49 };
50 
51 #ifdef SK_BUILD_FOR_WIN
52 #pragma warning(pop)
53 #endif
54 
55 #endif
56