The Tor Browser / file comparison
comparison: gfx/skia/trunk/src/gpu/gl/GrGLRenderTarget.h
gfx/skia/trunk/src/gpu/gl/GrGLRenderTarget.h
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
equal
deleted
inserted
replaced
| -1:000000000000 | 0:ff58f81fece6 |
|---|---|
| 1 /* | |
| 2 * Copyright 2011 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 | |
| 9 #ifndef GrGLRenderTarget_DEFINED | |
| 10 #define GrGLRenderTarget_DEFINED | |
| 11 | |
| 12 #include "GrGLIRect.h" | |
| 13 #include "GrRenderTarget.h" | |
| 14 #include "SkScalar.h" | |
| 15 | |
| 16 class GrGpuGL; | |
| 17 class GrGLTexture; | |
| 18 class GrGLTexID; | |
| 19 | |
| 20 class GrGLRenderTarget : public GrRenderTarget { | |
| 21 | |
| 22 public: | |
| 23 // set fTexFBOID to this value to indicate that it is multisampled but | |
| 24 // Gr doesn't know how to resolve it. | |
| 25 enum { kUnresolvableFBOID = 0 }; | |
| 26 | |
| 27 struct Desc { | |
| 28 GrGLuint fRTFBOID; | |
| 29 GrGLuint fTexFBOID; | |
| 30 GrGLuint fMSColorRenderbufferID; | |
| 31 bool fIsWrapped; | |
| 32 GrPixelConfig fConfig; | |
| 33 int fSampleCnt; | |
| 34 GrSurfaceOrigin fOrigin; | |
| 35 bool fCheckAllocation; | |
| 36 }; | |
| 37 | |
| 38 // creates a GrGLRenderTarget associated with a texture | |
| 39 GrGLRenderTarget(GrGpuGL* gpu, | |
| 40 const Desc& desc, | |
| 41 const GrGLIRect& viewport, | |
| 42 GrGLTexID* texID, | |
| 43 GrGLTexture* texture); | |
| 44 | |
| 45 // creates an independent GrGLRenderTarget | |
| 46 GrGLRenderTarget(GrGpuGL* gpu, | |
| 47 const Desc& desc, | |
| 48 const GrGLIRect& viewport); | |
| 49 | |
| 50 virtual ~GrGLRenderTarget() { this->release(); } | |
| 51 | |
| 52 void setViewport(const GrGLIRect& rect) { fViewport = rect; } | |
| 53 const GrGLIRect& getViewport() const { return fViewport; } | |
| 54 | |
| 55 // The following two functions return the same ID when a | |
| 56 // texture/render target is multisampled, and different IDs when | |
| 57 // it is. | |
| 58 // FBO ID used to render into | |
| 59 GrGLuint renderFBOID() const { return fRTFBOID; } | |
| 60 // FBO ID that has texture ID attached. | |
| 61 GrGLuint textureFBOID() const { return fTexFBOID; } | |
| 62 | |
| 63 // override of GrRenderTarget | |
| 64 virtual GrBackendObject getRenderTargetHandle() const { | |
| 65 return this->renderFBOID(); | |
| 66 } | |
| 67 virtual GrBackendObject getRenderTargetResolvedHandle() const { | |
| 68 return this->textureFBOID(); | |
| 69 } | |
| 70 virtual ResolveType getResolveType() const { | |
| 71 | |
| 72 if (!this->isMultisampled() || | |
| 73 fRTFBOID == fTexFBOID) { | |
| 74 // catches FBO 0 and non MSAA case | |
| 75 return kAutoResolves_ResolveType; | |
| 76 } else if (kUnresolvableFBOID == fTexFBOID) { | |
| 77 return kCantResolve_ResolveType; | |
| 78 } else { | |
| 79 return kCanResolve_ResolveType; | |
| 80 } | |
| 81 } | |
| 82 | |
| 83 protected: | |
| 84 // override of GrResource | |
| 85 virtual void onAbandon() SK_OVERRIDE; | |
| 86 virtual void onRelease() SK_OVERRIDE; | |
| 87 | |
| 88 private: | |
| 89 GrGLuint fRTFBOID; | |
| 90 GrGLuint fTexFBOID; | |
| 91 | |
| 92 GrGLuint fMSColorRenderbufferID; | |
| 93 | |
| 94 // when we switch to this render target we want to set the viewport to | |
| 95 // only render to to content area (as opposed to the whole allocation) and | |
| 96 // we want the rendering to be at top left (GL has origin in bottom left) | |
| 97 GrGLIRect fViewport; | |
| 98 | |
| 99 // non-NULL if this RT was created by Gr with an associated GrGLTexture. | |
| 100 SkAutoTUnref<GrGLTexID> fTexIDObj; | |
| 101 | |
| 102 void init(const Desc& desc, const GrGLIRect& viewport, GrGLTexID* texID); | |
| 103 | |
| 104 typedef GrRenderTarget INHERITED; | |
| 105 }; | |
| 106 | |
| 107 #endif |
