content/canvas/src/WebGLShader.h

   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 WEBGLSHADER_H_
   7 #define WEBGLSHADER_H_
   8
   9 #include "WebGLObjectModel.h"
  10 #include "WebGLUniformInfo.h"
  11
  12 #include "nsWrapperCache.h"
  13
  14 #include "angle/ShaderLang.h"
  15
  16 #include "mozilla/LinkedList.h"
  17 #include "mozilla/MemoryReporting.h"
  18
  19 namespace mozilla {
  20
  21 struct WebGLMappedIdentifier {
  22     nsCString original, mapped; // ASCII strings
  23     WebGLMappedIdentifier(const nsACString& o, const nsACString& m) : original(o), mapped(m) {}
  24 };
  25
  26 class WebGLShader MOZ_FINAL
  27     : public nsWrapperCache
  28     , public WebGLRefCountedObject<WebGLShader>
  29     , public LinkedListElement<WebGLShader>
  30     , public WebGLContextBoundObject
  31 {
  32     friend class WebGLContext;
  33     friend class WebGLProgram;
  34
  35 public:
  36     WebGLShader(WebGLContext *context, GLenum stype);
  37
  38     ~WebGLShader() {
  39         DeleteOnce();
  40     }
  41
  42     size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
  43
  44     GLuint GLName() { return mGLName; }
  45     GLenum ShaderType() { return mType; }
  46
  47     void SetSource(const nsAString& src) {
  48         // XXX do some quick gzip here maybe -- getting this will be very rare
  49         mSource.Assign(src);
  50     }
  51
  52     const nsString& Source() const { return mSource; }
  53
  54     void SetNeedsTranslation() { mNeedsTranslation = true; }
  55     bool NeedsTranslation() const { return mNeedsTranslation; }
  56
  57     void SetCompileStatus (bool status) {
  58         mCompileStatus = status;
  59     }
  60
  61     void Delete();
  62
  63     bool CompileStatus() const {
  64         return mCompileStatus;
  65     }
  66
  67     void SetTranslationSuccess();
  68
  69     void SetTranslationFailure(const nsCString& msg) {
  70         mTranslationLog.Assign(msg);
  71     }
  72
  73     const nsCString& TranslationLog() const { return mTranslationLog; }
  74
  75     WebGLContext *GetParentObject() const {
  76         return Context();
  77     }
  78
  79     virtual JSObject* WrapObject(JSContext *cx,
  80                                  JS::Handle<JSObject*> scope) MOZ_OVERRIDE;
  81
  82     NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(WebGLShader)
  83     NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(WebGLShader)
  84
  85 protected:
  86
  87     GLuint mGLName;
  88     GLenum mType;
  89     nsString mSource;
  90     nsCString mTranslationLog; // The translation log should contain only ASCII characters
  91     bool mNeedsTranslation;
  92     nsTArray<WebGLMappedIdentifier> mAttributes;
  93     nsTArray<WebGLMappedIdentifier> mUniforms;
  94     nsTArray<WebGLUniformInfo> mUniformInfos;
  95     int mAttribMaxNameLength;
  96     bool mCompileStatus;
  97 };
  98 } // namespace mozilla
  99
 100 #endif