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comparison: gfx/skia/trunk/src/gpu/gl/GrGLTexture.h
gfx/skia/trunk/src/gpu/gl/GrGLTexture.h
- branch
- TOR_BUG_9701
- changeset 11
- deefc01c0e14
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| -1:000000000000 | 0:e09aa1e708f8 |
|---|---|
| 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 GrGLTexture_DEFINED | |
| 10 #define GrGLTexture_DEFINED | |
| 11 | |
| 12 #include "GrGpu.h" | |
| 13 #include "GrGLRenderTarget.h" | |
| 14 | |
| 15 /** | |
| 16 * A ref counted tex id that deletes the texture in its destructor. | |
| 17 */ | |
| 18 class GrGLTexID : public SkRefCnt { | |
| 19 public: | |
| 20 SK_DECLARE_INST_COUNT(GrGLTexID) | |
| 21 | |
| 22 GrGLTexID(const GrGLInterface* gl, GrGLuint texID, bool isWrapped) | |
| 23 : fGL(gl) | |
| 24 , fTexID(texID) | |
| 25 , fIsWrapped(isWrapped) { | |
| 26 } | |
| 27 | |
| 28 virtual ~GrGLTexID() { | |
| 29 if (0 != fTexID && !fIsWrapped) { | |
| 30 GR_GL_CALL(fGL, DeleteTextures(1, &fTexID)); | |
| 31 } | |
| 32 } | |
| 33 | |
| 34 void abandon() { fTexID = 0; } | |
| 35 GrGLuint id() const { return fTexID; } | |
| 36 | |
| 37 private: | |
| 38 const GrGLInterface* fGL; | |
| 39 GrGLuint fTexID; | |
| 40 bool fIsWrapped; | |
| 41 | |
| 42 typedef SkRefCnt INHERITED; | |
| 43 }; | |
| 44 | |
| 45 //////////////////////////////////////////////////////////////////////////////// | |
| 46 | |
| 47 | |
| 48 class GrGLTexture : public GrTexture { | |
| 49 | |
| 50 public: | |
| 51 struct TexParams { | |
| 52 GrGLenum fMinFilter; | |
| 53 GrGLenum fMagFilter; | |
| 54 GrGLenum fWrapS; | |
| 55 GrGLenum fWrapT; | |
| 56 GrGLenum fSwizzleRGBA[4]; | |
| 57 void invalidate() { memset(this, 0xff, sizeof(TexParams)); } | |
| 58 }; | |
| 59 | |
| 60 struct Desc : public GrTextureDesc { | |
| 61 GrGLuint fTextureID; | |
| 62 bool fIsWrapped; | |
| 63 }; | |
| 64 | |
| 65 // creates a texture that is also an RT | |
| 66 GrGLTexture(GrGpuGL* gpu, | |
| 67 const Desc& textureDesc, | |
| 68 const GrGLRenderTarget::Desc& rtDesc); | |
| 69 | |
| 70 // creates a non-RT texture | |
| 71 GrGLTexture(GrGpuGL* gpu, | |
| 72 const Desc& textureDesc); | |
| 73 | |
| 74 virtual ~GrGLTexture() { this->release(); } | |
| 75 | |
| 76 virtual GrBackendObject getTextureHandle() const SK_OVERRIDE; | |
| 77 | |
| 78 virtual void invalidateCachedState() SK_OVERRIDE { fTexParams.invalidate(); } | |
| 79 | |
| 80 // These functions are used to track the texture parameters associated with the texture. | |
| 81 const TexParams& getCachedTexParams(GrGpu::ResetTimestamp* timestamp) const { | |
| 82 *timestamp = fTexParamsTimestamp; | |
| 83 return fTexParams; | |
| 84 } | |
| 85 | |
| 86 void setCachedTexParams(const TexParams& texParams, | |
| 87 GrGpu::ResetTimestamp timestamp) { | |
| 88 fTexParams = texParams; | |
| 89 fTexParamsTimestamp = timestamp; | |
| 90 } | |
| 91 | |
| 92 GrGLuint textureID() const { return (NULL != fTexIDObj.get()) ? fTexIDObj->id() : 0; } | |
| 93 | |
| 94 protected: | |
| 95 // overrides of GrTexture | |
| 96 virtual void onAbandon() SK_OVERRIDE; | |
| 97 virtual void onRelease() SK_OVERRIDE; | |
| 98 | |
| 99 private: | |
| 100 TexParams fTexParams; | |
| 101 GrGpu::ResetTimestamp fTexParamsTimestamp; | |
| 102 SkAutoTUnref<GrGLTexID> fTexIDObj; | |
| 103 | |
| 104 void init(GrGpuGL* gpu, | |
| 105 const Desc& textureDesc, | |
| 106 const GrGLRenderTarget::Desc* rtDesc); | |
| 107 | |
| 108 typedef GrTexture INHERITED; | |
| 109 }; | |
| 110 | |
| 111 #endif |
