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comparison: content/canvas/src/WebGLFramebuffer.h
content/canvas/src/WebGLFramebuffer.h
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- TOR_BUG_9701
- changeset 11
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| -1:000000000000 | 0:04b4e4600aa5 |
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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef WEBGLFRAMEBUFFER_H_ | |
| 7 #define WEBGLFRAMEBUFFER_H_ | |
| 8 | |
| 9 #include "WebGLObjectModel.h" | |
| 10 | |
| 11 #include "nsWrapperCache.h" | |
| 12 | |
| 13 #include "mozilla/LinkedList.h" | |
| 14 | |
| 15 namespace mozilla { | |
| 16 | |
| 17 class WebGLFramebufferAttachable; | |
| 18 class WebGLTexture; | |
| 19 class WebGLRenderbuffer; | |
| 20 namespace gl { | |
| 21 class GLContext; | |
| 22 } | |
| 23 | |
| 24 class WebGLFramebuffer MOZ_FINAL | |
| 25 : public nsWrapperCache | |
| 26 , public WebGLRefCountedObject<WebGLFramebuffer> | |
| 27 , public LinkedListElement<WebGLFramebuffer> | |
| 28 , public WebGLContextBoundObject | |
| 29 { | |
| 30 public: | |
| 31 WebGLFramebuffer(WebGLContext* context); | |
| 32 | |
| 33 ~WebGLFramebuffer() { | |
| 34 DeleteOnce(); | |
| 35 } | |
| 36 | |
| 37 struct Attachment | |
| 38 { | |
| 39 // deleting a texture or renderbuffer immediately detaches it | |
| 40 WebGLRefPtr<WebGLTexture> mTexturePtr; | |
| 41 WebGLRefPtr<WebGLRenderbuffer> mRenderbufferPtr; | |
| 42 GLenum mAttachmentPoint; | |
| 43 GLenum mTexImageTarget; | |
| 44 GLint mTexImageLevel; | |
| 45 mutable bool mNeedsFinalize; | |
| 46 | |
| 47 Attachment(GLenum aAttachmentPoint = LOCAL_GL_COLOR_ATTACHMENT0) | |
| 48 : mAttachmentPoint(aAttachmentPoint) | |
| 49 , mNeedsFinalize(false) | |
| 50 {} | |
| 51 | |
| 52 bool IsDefined() const { | |
| 53 return Texture() || Renderbuffer(); | |
| 54 } | |
| 55 | |
| 56 bool IsDeleteRequested() const; | |
| 57 | |
| 58 bool HasAlpha() const; | |
| 59 bool IsReadableFloat() const; | |
| 60 | |
| 61 void SetTexImage(WebGLTexture* tex, GLenum target, GLint level); | |
| 62 void SetRenderbuffer(WebGLRenderbuffer* rb); | |
| 63 | |
| 64 const WebGLTexture* Texture() const { | |
| 65 return mTexturePtr; | |
| 66 } | |
| 67 WebGLTexture* Texture() { | |
| 68 return mTexturePtr; | |
| 69 } | |
| 70 const WebGLRenderbuffer* Renderbuffer() const { | |
| 71 return mRenderbufferPtr; | |
| 72 } | |
| 73 WebGLRenderbuffer* Renderbuffer() { | |
| 74 return mRenderbufferPtr; | |
| 75 } | |
| 76 GLenum TexImageTarget() const { | |
| 77 return mTexImageTarget; | |
| 78 } | |
| 79 GLint TexImageLevel() const { | |
| 80 return mTexImageLevel; | |
| 81 } | |
| 82 | |
| 83 bool HasUninitializedImageData() const; | |
| 84 void SetImageDataStatus(WebGLImageDataStatus x); | |
| 85 | |
| 86 void Reset() { | |
| 87 mTexturePtr = nullptr; | |
| 88 mRenderbufferPtr = nullptr; | |
| 89 } | |
| 90 | |
| 91 const WebGLRectangleObject& RectangleObject() const; | |
| 92 | |
| 93 bool HasImage() const; | |
| 94 bool IsComplete() const; | |
| 95 | |
| 96 void FinalizeAttachment(gl::GLContext* gl, GLenum attachmentLoc) const; | |
| 97 }; | |
| 98 | |
| 99 void Delete(); | |
| 100 | |
| 101 bool HasEverBeenBound() { return mHasEverBeenBound; } | |
| 102 void SetHasEverBeenBound(bool x) { mHasEverBeenBound = x; } | |
| 103 GLuint GLName() { return mGLName; } | |
| 104 | |
| 105 void FramebufferRenderbuffer(GLenum target, | |
| 106 GLenum attachment, | |
| 107 GLenum rbtarget, | |
| 108 WebGLRenderbuffer* wrb); | |
| 109 | |
| 110 void FramebufferTexture2D(GLenum target, | |
| 111 GLenum attachment, | |
| 112 GLenum textarget, | |
| 113 WebGLTexture* wtex, | |
| 114 GLint level); | |
| 115 | |
| 116 private: | |
| 117 void DetachAttachment(WebGLFramebuffer::Attachment& attachment); | |
| 118 void DetachAllAttachments(); | |
| 119 const WebGLRectangleObject& GetAnyRectObject() const; | |
| 120 Attachment* GetAttachmentOrNull(GLenum attachment); | |
| 121 | |
| 122 public: | |
| 123 bool HasDefinedAttachments() const; | |
| 124 bool HasIncompleteAttachments() const; | |
| 125 bool AllImageRectsMatch() const; | |
| 126 GLenum PrecheckFramebufferStatus() const; | |
| 127 GLenum CheckFramebufferStatus() const; | |
| 128 | |
| 129 bool HasDepthStencilConflict() const { | |
| 130 return int(mDepthAttachment.IsDefined()) + | |
| 131 int(mStencilAttachment.IsDefined()) + | |
| 132 int(mDepthStencilAttachment.IsDefined()) >= 2; | |
| 133 } | |
| 134 | |
| 135 size_t ColorAttachmentCount() const { | |
| 136 return mColorAttachments.Length(); | |
| 137 } | |
| 138 const Attachment& ColorAttachment(size_t colorAttachmentId) const { | |
| 139 return mColorAttachments[colorAttachmentId]; | |
| 140 } | |
| 141 | |
| 142 const Attachment& DepthAttachment() const { | |
| 143 return mDepthAttachment; | |
| 144 } | |
| 145 | |
| 146 const Attachment& StencilAttachment() const { | |
| 147 return mStencilAttachment; | |
| 148 } | |
| 149 | |
| 150 const Attachment& DepthStencilAttachment() const { | |
| 151 return mDepthStencilAttachment; | |
| 152 } | |
| 153 | |
| 154 const Attachment& GetAttachment(GLenum attachment) const; | |
| 155 | |
| 156 void DetachTexture(const WebGLTexture* tex); | |
| 157 | |
| 158 void DetachRenderbuffer(const WebGLRenderbuffer* rb); | |
| 159 | |
| 160 const WebGLRectangleObject& RectangleObject() const; | |
| 161 | |
| 162 WebGLContext* GetParentObject() const { | |
| 163 return Context(); | |
| 164 } | |
| 165 | |
| 166 void FinalizeAttachments() const; | |
| 167 | |
| 168 virtual JSObject* WrapObject(JSContext* cx) MOZ_OVERRIDE; | |
| 169 | |
| 170 NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(WebGLFramebuffer) | |
| 171 NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(WebGLFramebuffer) | |
| 172 | |
| 173 // mask mirrors glClear. | |
| 174 bool HasCompletePlanes(GLbitfield mask); | |
| 175 | |
| 176 bool CheckAndInitializeAttachments(); | |
| 177 | |
| 178 bool CheckColorAttachmentNumber(GLenum attachment, const char* functionName) const; | |
| 179 | |
| 180 void EnsureColorAttachments(size_t colorAttachmentId); | |
| 181 | |
| 182 Attachment* AttachmentFor(GLenum attachment); | |
| 183 void NotifyAttachableChanged() const; | |
| 184 | |
| 185 private: | |
| 186 mutable GLenum mStatus; | |
| 187 | |
| 188 GLuint mGLName; | |
| 189 bool mHasEverBeenBound; | |
| 190 | |
| 191 // we only store pointers to attached renderbuffers, not to attached textures, because | |
| 192 // we will only need to initialize renderbuffers. Textures are already initialized. | |
| 193 nsTArray<Attachment> mColorAttachments; | |
| 194 Attachment mDepthAttachment, | |
| 195 mStencilAttachment, | |
| 196 mDepthStencilAttachment; | |
| 197 }; | |
| 198 | |
| 199 } // namespace mozilla | |
| 200 | |
| 201 #endif |
