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content/canvas/src/WebGLFramebuffer.h@deefc01c0e14 (annotated)

content/canvas/src/WebGLFramebuffer.h

Thu, 15 Jan 2015 21:03:48 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Thu, 15 Jan 2015 21:03:48 +0100

branch

TOR_BUG_9701

changeset 11

deefc01c0e14

permissions

-rw-r--r--

Integrate friendly tips from Tor colleagues to make (or not) 4.5 alpha 3;
This includes removal of overloaded (but unused) methods, and addition of
a overlooked call to DataStruct::SetData(nsISupports, uint32_t, bool.)

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