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       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 WEBGL_UNIFORM_LOCATION_H_
       7             : #define WEBGL_UNIFORM_LOCATION_H_
       8             : 
       9             : #include "GLDefs.h"
      10             : #include "mozilla/WeakPtr.h"
      11             : #include "nsCycleCollectionParticipant.h" // NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS
      12             : #include "nsISupportsImpl.h" // NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING
      13             : #include "nsWrapperCache.h"
      14             : 
      15             : #include "WebGLObjectModel.h"
      16             : 
      17             : struct JSContext;
      18             : 
      19             : namespace mozilla {
      20             : class WebGLActiveInfo;
      21             : class WebGLContext;
      22             : class WebGLProgram;
      23             : 
      24             : namespace webgl {
      25             : struct LinkedProgramInfo;
      26             : struct UniformInfo;
      27             : } // namespace webgl
      28             : 
      29             : class WebGLUniformLocation final
      30             :     : public nsWrapperCache
      31             :     , public WebGLContextBoundObject
      32             : {
      33             : public:
      34           0 :     NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(WebGLUniformLocation)
      35           0 :     NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(WebGLUniformLocation)
      36             : 
      37             :     virtual JSObject* WrapObject(JSContext* js, JS::Handle<JSObject*> givenProto) override;
      38             : 
      39           0 :     WebGLContext* GetParentObject() const {
      40           0 :         return mContext;
      41             :     }
      42             : 
      43             :     //////
      44             : 
      45             :     const WeakPtr<const webgl::LinkedProgramInfo> mLinkInfo;
      46             :     webgl::UniformInfo* const mInfo;
      47             :     const GLuint mLoc;
      48             :     const size_t mArrayIndex;
      49             : 
      50             :     //////
      51             : 
      52             :     WebGLUniformLocation(WebGLContext* webgl, const webgl::LinkedProgramInfo* linkInfo,
      53             :                          webgl::UniformInfo* info, GLuint loc, size_t arrayIndex);
      54             : 
      55             :     bool ValidateForProgram(const WebGLProgram* prog, const char* funcName) const;
      56             :     bool ValidateSizeAndType(uint8_t setterElemSize, GLenum setterType,
      57             :                              const char* funcName) const;
      58             :     bool ValidateArrayLength(uint8_t setterElemSize, size_t setterArraySize,
      59             :                              const char* funcName) const;
      60             : 
      61             :     JS::Value GetUniform(JSContext* js) const;
      62             : 
      63             :     // Needed for certain helper functions like ValidateObject.
      64             :     // `WebGLUniformLocation`s can't be 'Deleted' in the WebGL sense.
      65             :     bool IsDeleted() const { return false; }
      66             : 
      67             : protected:
      68             :     ~WebGLUniformLocation();
      69             : };
      70             : 
      71             : } // namespace mozilla
      72             : 
      73             : #endif // WEBGL_UNIFORM_LOCATION_H_