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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 GrTextureProxy_DEFINED | |
9 #define GrTextureProxy_DEFINED | |
10 | |
11 #include "GrSurfaceProxy.h" | |
12 #include "GrTexture.h" | |
13 | |
14 class GrTextureProvider; | |
15 | |
16 // This class delays the acquisition of textures until they are actually require
d | |
17 class GrTextureProxy : public GrSurfaceProxy { | |
18 public: | |
19 // TODO: need to refine ownership semantics of 'srcData' if we're in complet
ely | |
20 // deferred mode | |
21 static sk_sp<GrTextureProxy> Make(const GrSurfaceDesc&, SkBackingFit, SkBudg
eted, | |
22 const void* srcData = nullptr, size_t rowB
ytes = 0); | |
23 static sk_sp<GrTextureProxy> Make(sk_sp<GrTexture>); | |
24 | |
25 // TODO: add asRenderTargetProxy variants | |
26 GrTextureProxy* asTextureProxy() override { return this; } | |
27 const GrTextureProxy* asTextureProxy() const override { return this; } | |
28 | |
29 // Actually instantiate the backing texture, if necessary | |
30 GrTexture* instantiate(GrTextureProvider* texProvider); | |
31 | |
32 private: | |
33 GrTextureProxy(const GrSurfaceDesc& desc, SkBackingFit fit, SkBudgeted budge
ted, | |
34 const void* /*srcData*/, size_t /*rowBytes*/) | |
35 : INHERITED(desc, fit, budgeted) { | |
36 // TODO: Handle 'srcData' here | |
37 } | |
38 | |
39 // Wrapped version | |
40 GrTextureProxy(sk_sp<GrTexture> tex); | |
41 | |
42 // For wrapped textures we store it here. | |
43 // For deferred proxies we will fill this in when we need to instantiate the
deferred resource | |
44 sk_sp<GrTexture> fTexture; | |
45 | |
46 typedef GrSurfaceProxy INHERITED; | |
47 }; | |
48 | |
49 #endif | |
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