gfx/skia/trunk/src/gpu/gl/GrGLTexture.h@6474c204b198 (annotated)
gfx/skia/trunk/src/gpu/gl/GrGLTexture.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* |
| michael@0 | 2 | * Copyright 2011 Google Inc. |
| michael@0 | 3 | * |
| michael@0 | 4 | * Use of this source code is governed by a BSD-style license that can be |
| michael@0 | 5 | * found in the LICENSE file. |
| michael@0 | 6 | */ |
| michael@0 | 7 | |
| michael@0 | 8 | |
| michael@0 | 9 | #ifndef GrGLTexture_DEFINED |
| michael@0 | 10 | #define GrGLTexture_DEFINED |
| michael@0 | 11 | |
| michael@0 | 12 | #include "GrGpu.h" |
| michael@0 | 13 | #include "GrGLRenderTarget.h" |
| michael@0 | 14 | |
| michael@0 | 15 | /** |
| michael@0 | 16 | * A ref counted tex id that deletes the texture in its destructor. |
| michael@0 | 17 | */ |
| michael@0 | 18 | class GrGLTexID : public SkRefCnt { |
| michael@0 | 19 | public: |
| michael@0 | 20 | SK_DECLARE_INST_COUNT(GrGLTexID) |
| michael@0 | 21 | |
| michael@0 | 22 | GrGLTexID(const GrGLInterface* gl, GrGLuint texID, bool isWrapped) |
| michael@0 | 23 | : fGL(gl) |
| michael@0 | 24 | , fTexID(texID) |
| michael@0 | 25 | , fIsWrapped(isWrapped) { |
| michael@0 | 26 | } |
| michael@0 | 27 | |
| michael@0 | 28 | virtual ~GrGLTexID() { |
| michael@0 | 29 | if (0 != fTexID && !fIsWrapped) { |
| michael@0 | 30 | GR_GL_CALL(fGL, DeleteTextures(1, &fTexID)); |
| michael@0 | 31 | } |
| michael@0 | 32 | } |
| michael@0 | 33 | |
| michael@0 | 34 | void abandon() { fTexID = 0; } |
| michael@0 | 35 | GrGLuint id() const { return fTexID; } |
| michael@0 | 36 | |
| michael@0 | 37 | private: |
| michael@0 | 38 | const GrGLInterface* fGL; |
| michael@0 | 39 | GrGLuint fTexID; |
| michael@0 | 40 | bool fIsWrapped; |
| michael@0 | 41 | |
| michael@0 | 42 | typedef SkRefCnt INHERITED; |
| michael@0 | 43 | }; |
| michael@0 | 44 | |
| michael@0 | 45 | //////////////////////////////////////////////////////////////////////////////// |
| michael@0 | 46 | |
| michael@0 | 47 | |
| michael@0 | 48 | class GrGLTexture : public GrTexture { |
| michael@0 | 49 | |
| michael@0 | 50 | public: |
| michael@0 | 51 | struct TexParams { |
| michael@0 | 52 | GrGLenum fMinFilter; |
| michael@0 | 53 | GrGLenum fMagFilter; |
| michael@0 | 54 | GrGLenum fWrapS; |
| michael@0 | 55 | GrGLenum fWrapT; |
| michael@0 | 56 | GrGLenum fSwizzleRGBA[4]; |
| michael@0 | 57 | void invalidate() { memset(this, 0xff, sizeof(TexParams)); } |
| michael@0 | 58 | }; |
| michael@0 | 59 | |
| michael@0 | 60 | struct Desc : public GrTextureDesc { |
| michael@0 | 61 | GrGLuint fTextureID; |
| michael@0 | 62 | bool fIsWrapped; |
| michael@0 | 63 | }; |
| michael@0 | 64 | |
| michael@0 | 65 | // creates a texture that is also an RT |
| michael@0 | 66 | GrGLTexture(GrGpuGL* gpu, |
| michael@0 | 67 | const Desc& textureDesc, |
| michael@0 | 68 | const GrGLRenderTarget::Desc& rtDesc); |
| michael@0 | 69 | |
| michael@0 | 70 | // creates a non-RT texture |
| michael@0 | 71 | GrGLTexture(GrGpuGL* gpu, |
| michael@0 | 72 | const Desc& textureDesc); |
| michael@0 | 73 | |
| michael@0 | 74 | virtual ~GrGLTexture() { this->release(); } |
| michael@0 | 75 | |
| michael@0 | 76 | virtual GrBackendObject getTextureHandle() const SK_OVERRIDE; |
| michael@0 | 77 | |
| michael@0 | 78 | virtual void invalidateCachedState() SK_OVERRIDE { fTexParams.invalidate(); } |
| michael@0 | 79 | |
| michael@0 | 80 | // These functions are used to track the texture parameters associated with the texture. |
| michael@0 | 81 | const TexParams& getCachedTexParams(GrGpu::ResetTimestamp* timestamp) const { |
| michael@0 | 82 | *timestamp = fTexParamsTimestamp; |
| michael@0 | 83 | return fTexParams; |
| michael@0 | 84 | } |
| michael@0 | 85 | |
| michael@0 | 86 | void setCachedTexParams(const TexParams& texParams, |
| michael@0 | 87 | GrGpu::ResetTimestamp timestamp) { |
| michael@0 | 88 | fTexParams = texParams; |
| michael@0 | 89 | fTexParamsTimestamp = timestamp; |
| michael@0 | 90 | } |
| michael@0 | 91 | |
| michael@0 | 92 | GrGLuint textureID() const { return (NULL != fTexIDObj.get()) ? fTexIDObj->id() : 0; } |
| michael@0 | 93 | |
| michael@0 | 94 | protected: |
| michael@0 | 95 | // overrides of GrTexture |
| michael@0 | 96 | virtual void onAbandon() SK_OVERRIDE; |
| michael@0 | 97 | virtual void onRelease() SK_OVERRIDE; |
| michael@0 | 98 | |
| michael@0 | 99 | private: |
| michael@0 | 100 | TexParams fTexParams; |
| michael@0 | 101 | GrGpu::ResetTimestamp fTexParamsTimestamp; |
| michael@0 | 102 | SkAutoTUnref<GrGLTexID> fTexIDObj; |
| michael@0 | 103 | |
| michael@0 | 104 | void init(GrGpuGL* gpu, |
| michael@0 | 105 | const Desc& textureDesc, |
| michael@0 | 106 | const GrGLRenderTarget::Desc* rtDesc); |
| michael@0 | 107 | |
| michael@0 | 108 | typedef GrTexture INHERITED; |
| michael@0 | 109 | }; |
| michael@0 | 110 | |
| michael@0 | 111 | #endif |
