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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 GrSurfaceProxy_DEFINED | |
9 #define GrSurfaceProxy_DEFINED | |
10 | |
11 #include "GrGpuResource.h" | |
12 | |
13 class GrTextureProxy; | |
14 class GrRenderTargetProxy; | |
15 | |
16 class GrSurfaceProxy : public GrIORef<GrSurfaceProxy> { | |
17 public: | |
18 const GrSurfaceDesc& desc() const { return fDesc; } | |
19 | |
20 GrSurfaceOrigin origin() const { | |
21 SkASSERT(kTopLeft_GrSurfaceOrigin == fDesc.fOrigin || | |
22 kBottomLeft_GrSurfaceOrigin == fDesc.fOrigin); | |
23 return fDesc.fOrigin; | |
24 } | |
25 int width() const { return fDesc.fWidth; } | |
26 int height() const { return fDesc.fWidth; } | |
27 GrPixelConfig config() const { return fDesc.fConfig; } | |
28 | |
29 uint32_t uniqueID() const { return fUniqueID; } | |
30 | |
31 /** | |
32 * @return the texture proxy associated with the surface proxy, may be NULL. | |
33 */ | |
34 virtual GrTextureProxy* asTextureProxy() { return nullptr; } | |
35 virtual const GrTextureProxy* asTextureProxy() const { return nullptr; } | |
36 | |
37 /** | |
38 * @return the render target proxy associated with the surface proxy, may be
NULL. | |
39 */ | |
40 virtual GrRenderTargetProxy* asRenderTargetProxy() { return nullptr; } | |
41 virtual const GrRenderTargetProxy* asRenderTargetProxy() const { return null
ptr; } | |
42 | |
43 protected: | |
44 GrSurfaceProxy(const GrSurfaceDesc& desc, SkBackingFit fit, SkBudgeted budge
ted) | |
45 : fDesc(desc) | |
46 , fFit(fit) | |
47 , fBudgeted(budgeted) | |
48 , fUniqueID(CreateUniqueID()) { | |
49 } | |
50 | |
51 virtual ~GrSurfaceProxy() {} | |
52 | |
53 // For wrapped resources, 'fDesc' will always be filled in from the wrapped
resource. | |
54 const GrSurfaceDesc fDesc; | |
55 const SkBackingFit fFit; // always exact for wrapped resources | |
56 const SkBudgeted fBudgeted; // set from the backing resource for wrapped
resources | |
57 const uint32_t fUniqueID; | |
58 | |
59 private: | |
60 static uint32_t CreateUniqueID(); | |
61 | |
62 // See comment in GrGpuResource.h. | |
63 void notifyAllCntsAreZero(CntType) const {} | |
64 bool notifyRefCountIsZero() const { return false; } | |
65 | |
66 typedef GrIORef<GrSurfaceProxy> INHERITED; | |
67 | |
68 // to access notifyAllCntsAreZero and notifyRefCntIsZero. | |
69 friend class GrIORef<GrSurfaceProxy>; | |
70 }; | |
71 | |
72 #endif | |
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