1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/canvas/src/WebGLProgram.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,132 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef WEBGLPROGRAM_H_
1.10 +#define WEBGLPROGRAM_H_
1.11 +
1.12 +#include "WebGLObjectModel.h"
1.13 +
1.14 +#include "nsWrapperCache.h"
1.15 +
1.16 +#include "mozilla/LinkedList.h"
1.17 +#include "mozilla/CheckedInt.h"
1.18 +#include <map>
1.19 +
1.20 +namespace mozilla {
1.21 +
1.22 +class WebGLShader;
1.23 +class WebGLUniformInfo;
1.24 +
1.25 +typedef nsDataHashtable<nsCStringHashKey, nsCString> CStringMap;
1.26 +typedef nsDataHashtable<nsCStringHashKey, WebGLUniformInfo> CStringToUniformInfoMap;
1.27 +
1.28 +class WebGLProgram MOZ_FINAL
1.29 + : public nsWrapperCache
1.30 + , public WebGLRefCountedObject<WebGLProgram>
1.31 + , public LinkedListElement<WebGLProgram>
1.32 + , public WebGLContextBoundObject
1.33 +{
1.34 +public:
1.35 + WebGLProgram(WebGLContext *context);
1.36 +
1.37 + ~WebGLProgram() {
1.38 + DeleteOnce();
1.39 + }
1.40 +
1.41 + void Delete();
1.42 +
1.43 + void DetachShaders() {
1.44 + mAttachedShaders.Clear();
1.45 + }
1.46 +
1.47 + GLuint GLName() { return mGLName; }
1.48 + const nsTArray<WebGLRefPtr<WebGLShader> >& AttachedShaders() const { return mAttachedShaders; }
1.49 + bool LinkStatus() { return mLinkStatus; }
1.50 + uint32_t Generation() const { return mGeneration.value(); }
1.51 + void SetLinkStatus(bool val) { mLinkStatus = val; }
1.52 +
1.53 + bool ContainsShader(WebGLShader *shader) {
1.54 + return mAttachedShaders.Contains(shader);
1.55 + }
1.56 +
1.57 + // return true if the shader wasn't already attached
1.58 + bool AttachShader(WebGLShader *shader);
1.59 +
1.60 + // return true if the shader was found and removed
1.61 + bool DetachShader(WebGLShader *shader);
1.62 +
1.63 + bool HasAttachedShaderOfType(GLenum shaderType);
1.64 +
1.65 + bool HasBothShaderTypesAttached() {
1.66 + return
1.67 + HasAttachedShaderOfType(LOCAL_GL_VERTEX_SHADER) &&
1.68 + HasAttachedShaderOfType(LOCAL_GL_FRAGMENT_SHADER);
1.69 + }
1.70 +
1.71 + bool HasBadShaderAttached();
1.72 +
1.73 + size_t UpperBoundNumSamplerUniforms();
1.74 +
1.75 + bool NextGeneration()
1.76 + {
1.77 + if (!(mGeneration + 1).isValid())
1.78 + return false; // must exit without changing mGeneration
1.79 + ++mGeneration;
1.80 + return true;
1.81 + }
1.82 +
1.83 + /* Called only after LinkProgram */
1.84 + bool UpdateInfo();
1.85 +
1.86 + /* Getters for cached program info */
1.87 + bool IsAttribInUse(unsigned i) const { return mAttribsInUse[i]; }
1.88 +
1.89 + /* Maps identifier |name| to the mapped identifier |*mappedName|
1.90 + * Both are ASCII strings.
1.91 + */
1.92 + void MapIdentifier(const nsACString& name, nsCString *mappedName);
1.93 +
1.94 + /* Un-maps mapped identifier |name| to the original identifier |*reverseMappedName|
1.95 + * Both are ASCII strings.
1.96 + */
1.97 + void ReverseMapIdentifier(const nsACString& name, nsCString *reverseMappedName);
1.98 +
1.99 + /* Returns the uniform array size (or 1 if the uniform is not an array) of
1.100 + * the uniform with given mapped identifier.
1.101 + *
1.102 + * Note: the input string |name| is the mapped identifier, not the original identifier.
1.103 + */
1.104 + WebGLUniformInfo GetUniformInfoForMappedIdentifier(const nsACString& name);
1.105 +
1.106 + WebGLContext *GetParentObject() const {
1.107 + return Context();
1.108 + }
1.109 +
1.110 + virtual JSObject* WrapObject(JSContext *cx) MOZ_OVERRIDE;
1.111 +
1.112 + NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(WebGLProgram)
1.113 + NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(WebGLProgram)
1.114 +
1.115 + // public post-link data
1.116 + std::map<GLint, nsCString> mActiveAttribMap;
1.117 +
1.118 +protected:
1.119 +
1.120 + GLuint mGLName;
1.121 + bool mLinkStatus;
1.122 + // attached shaders of the program object
1.123 + nsTArray<WebGLRefPtr<WebGLShader> > mAttachedShaders;
1.124 + CheckedUint32 mGeneration;
1.125 +
1.126 + // post-link data
1.127 + FallibleTArray<bool> mAttribsInUse;
1.128 + nsAutoPtr<CStringMap> mIdentifierMap, mIdentifierReverseMap;
1.129 + nsAutoPtr<CStringToUniformInfoMap> mUniformInfoMap;
1.130 + int mAttribMaxNameLength;
1.131 +};
1.132 +
1.133 +} // namespace mozilla
1.134 +
1.135 +#endif
