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

content/canvas/src/WebGLProgram.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 WEBGLPROGRAM_H_
michael@0	7	#define WEBGLPROGRAM_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	#include "mozilla/CheckedInt.h"
michael@0	15	#include <map>
michael@0	16
michael@0	17	namespace mozilla {
michael@0	18
michael@0	19	class WebGLShader;
michael@0	20	class WebGLUniformInfo;
michael@0	21
michael@0	22	typedef nsDataHashtable<nsCStringHashKey, nsCString> CStringMap;
michael@0	23	typedef nsDataHashtable<nsCStringHashKey, WebGLUniformInfo> CStringToUniformInfoMap;
michael@0	24
michael@0	25	class WebGLProgram MOZ_FINAL
michael@0	26	: public nsWrapperCache
michael@0	27	, public WebGLRefCountedObject<WebGLProgram>
michael@0	28	, public LinkedListElement<WebGLProgram>
michael@0	29	, public WebGLContextBoundObject
michael@0	30	{
michael@0	31	public:
michael@0	32	WebGLProgram(WebGLContext *context);
michael@0	33
michael@0	34	~WebGLProgram() {
michael@0	35	DeleteOnce();
michael@0	36	}
michael@0	37
michael@0	38	void Delete();
michael@0	39
michael@0	40	void DetachShaders() {
michael@0	41	mAttachedShaders.Clear();
michael@0	42	}
michael@0	43
michael@0	44	GLuint GLName() { return mGLName; }
michael@0	45	const nsTArray<WebGLRefPtr<WebGLShader> >& AttachedShaders() const { return mAttachedShaders; }
michael@0	46	bool LinkStatus() { return mLinkStatus; }
michael@0	47	uint32_t Generation() const { return mGeneration.value(); }
michael@0	48	void SetLinkStatus(bool val) { mLinkStatus = val; }
michael@0	49
michael@0	50	bool ContainsShader(WebGLShader *shader) {
michael@0	51	return mAttachedShaders.Contains(shader);
michael@0	52	}
michael@0	53
michael@0	54	// return true if the shader wasn't already attached
michael@0	55	bool AttachShader(WebGLShader *shader);
michael@0	56
michael@0	57	// return true if the shader was found and removed
michael@0	58	bool DetachShader(WebGLShader *shader);
michael@0	59
michael@0	60	bool HasAttachedShaderOfType(GLenum shaderType);
michael@0	61
michael@0	62	bool HasBothShaderTypesAttached() {
michael@0	63	return
michael@0	64	HasAttachedShaderOfType(LOCAL_GL_VERTEX_SHADER) &&
michael@0	65	HasAttachedShaderOfType(LOCAL_GL_FRAGMENT_SHADER);
michael@0	66	}
michael@0	67
michael@0	68	bool HasBadShaderAttached();
michael@0	69
michael@0	70	size_t UpperBoundNumSamplerUniforms();
michael@0	71
michael@0	72	bool NextGeneration()
michael@0	73	{
michael@0	74	if (!(mGeneration + 1).isValid())
michael@0	75	return false; // must exit without changing mGeneration
michael@0	76	++mGeneration;
michael@0	77	return true;
michael@0	78	}
michael@0	79
michael@0	80	/* Called only after LinkProgram */
michael@0	81	bool UpdateInfo();
michael@0	82
michael@0	83	/* Getters for cached program info */
michael@0	84	bool IsAttribInUse(unsigned i) const { return mAttribsInUse[i]; }
michael@0	85
michael@0	86	/* Maps identifier |name| to the mapped identifier |*mappedName|
michael@0	87	* Both are ASCII strings.
michael@0	88	*/
michael@0	89	void MapIdentifier(const nsACString& name, nsCString *mappedName);
michael@0	90
michael@0	91	/* Un-maps mapped identifier |name| to the original identifier |*reverseMappedName|
michael@0	92	* Both are ASCII strings.
michael@0	93	*/
michael@0	94	void ReverseMapIdentifier(const nsACString& name, nsCString *reverseMappedName);
michael@0	95
michael@0	96	/* Returns the uniform array size (or 1 if the uniform is not an array) of
michael@0	97	* the uniform with given mapped identifier.
michael@0	98	*
michael@0	99	* Note: the input string |name| is the mapped identifier, not the original identifier.
michael@0	100	*/
michael@0	101	WebGLUniformInfo GetUniformInfoForMappedIdentifier(const nsACString& name);
michael@0	102
michael@0	103	WebGLContext *GetParentObject() const {
michael@0	104	return Context();
michael@0	105	}
michael@0	106
michael@0	107	virtual JSObject* WrapObject(JSContext *cx) MOZ_OVERRIDE;
michael@0	108
michael@0	109	NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(WebGLProgram)
michael@0	110	NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(WebGLProgram)
michael@0	111
michael@0	112	// public post-link data
michael@0	113	std::map<GLint, nsCString> mActiveAttribMap;
michael@0	114
michael@0	115	protected:
michael@0	116
michael@0	117	GLuint mGLName;
michael@0	118	bool mLinkStatus;
michael@0	119	// attached shaders of the program object
michael@0	120	nsTArray<WebGLRefPtr<WebGLShader> > mAttachedShaders;
michael@0	121	CheckedUint32 mGeneration;
michael@0	122
michael@0	123	// post-link data
michael@0	124	FallibleTArray<bool> mAttribsInUse;
michael@0	125	nsAutoPtr<CStringMap> mIdentifierMap, mIdentifierReverseMap;
michael@0	126	nsAutoPtr<CStringToUniformInfoMap> mUniformInfoMap;
michael@0	127	int mAttribMaxNameLength;
michael@0	128	};
michael@0	129
michael@0	130	} // namespace mozilla
michael@0	131
michael@0	132	#endif