The Tor Browser: content/canvas/src/WebGLProgram.h@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     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/. */

     6 #ifndef WEBGLPROGRAM_H_

     7 #define WEBGLPROGRAM_H_

     9 #include "WebGLObjectModel.h"

    11 #include "nsWrapperCache.h"

    13 #include "mozilla/LinkedList.h"

    14 #include "mozilla/CheckedInt.h"

    15 #include <map>

    17 namespace mozilla {

    19 class WebGLShader;

    20 class WebGLUniformInfo;

    22 typedef nsDataHashtable<nsCStringHashKey, nsCString> CStringMap;

    23 typedef nsDataHashtable<nsCStringHashKey, WebGLUniformInfo> CStringToUniformInfoMap;

    25 class WebGLProgram MOZ_FINAL

    26     : public nsWrapperCache

    27     , public WebGLRefCountedObject<WebGLProgram>

    28     , public LinkedListElement<WebGLProgram>

    29     , public WebGLContextBoundObject

    30 {

    31 public:

    32     WebGLProgram(WebGLContext *context);

    34     ~WebGLProgram() {

    35         DeleteOnce();

    36     }

    38     void Delete();

    40     void DetachShaders() {

    41         mAttachedShaders.Clear();

    42     }

    44     GLuint GLName() { return mGLName; }

    45     const nsTArray<WebGLRefPtr<WebGLShader> >& AttachedShaders() const { return mAttachedShaders; }

    46     bool LinkStatus() { return mLinkStatus; }

    47     uint32_t Generation() const { return mGeneration.value(); }

    48     void SetLinkStatus(bool val) { mLinkStatus = val; }

    50     bool ContainsShader(WebGLShader *shader) {

    51         return mAttachedShaders.Contains(shader);

    52     }

    54     // return true if the shader wasn't already attached

    55     bool AttachShader(WebGLShader *shader);

    57     // return true if the shader was found and removed

    58     bool DetachShader(WebGLShader *shader);

    60     bool HasAttachedShaderOfType(GLenum shaderType);

    62     bool HasBothShaderTypesAttached() {

    63         return

    64             HasAttachedShaderOfType(LOCAL_GL_VERTEX_SHADER) &&

    65             HasAttachedShaderOfType(LOCAL_GL_FRAGMENT_SHADER);

    66     }

    68     bool HasBadShaderAttached();

    70     size_t UpperBoundNumSamplerUniforms();

    72     bool NextGeneration()

    73     {

    74         if (!(mGeneration + 1).isValid())

    75             return false; // must exit without changing mGeneration

    76         ++mGeneration;

    77         return true;

    78     }

    80     /* Called only after LinkProgram */

    81     bool UpdateInfo();

    83     /* Getters for cached program info */

    84     bool IsAttribInUse(unsigned i) const { return mAttribsInUse[i]; }

    86     /* Maps identifier |name| to the mapped identifier |*mappedName|

    87      * Both are ASCII strings.

    88      */

    89     void MapIdentifier(const nsACString& name, nsCString *mappedName);

    91     /* Un-maps mapped identifier |name| to the original identifier |*reverseMappedName|

    92      * Both are ASCII strings.

    93      */

    94     void ReverseMapIdentifier(const nsACString& name, nsCString *reverseMappedName);

    96     /* Returns the uniform array size (or 1 if the uniform is not an array) of

    97      * the uniform with given mapped identifier.

    98      *

    99      * Note: the input string |name| is the mapped identifier, not the original identifier.

   100      */

   101     WebGLUniformInfo GetUniformInfoForMappedIdentifier(const nsACString& name);

   103     WebGLContext *GetParentObject() const {

   104         return Context();

   105     }

   107     virtual JSObject* WrapObject(JSContext *cx) MOZ_OVERRIDE;

   109     NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(WebGLProgram)

   110     NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(WebGLProgram)

   112     // public post-link data

   113     std::map<GLint, nsCString> mActiveAttribMap;

   115 protected:

   117     GLuint mGLName;

   118     bool mLinkStatus;

   119     // attached shaders of the program object

   120     nsTArray<WebGLRefPtr<WebGLShader> > mAttachedShaders;

   121     CheckedUint32 mGeneration;

   123     // post-link data

   124     FallibleTArray<bool> mAttribsInUse;

   125     nsAutoPtr<CStringMap> mIdentifierMap, mIdentifierReverseMap;

   126     nsAutoPtr<CStringToUniformInfoMap> mUniformInfoMap;

   127     int mAttribMaxNameLength;

   128 };

   130 } // namespace mozilla

   132 #endif

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