kc3-lang/angle/src/common/RefCountObject.h

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• Author : Geoff Lang
  Date : 2014-06-12 14:10:47
  Hash : 0b7eef7c
  Message : Removed common_includes.h reordered includes. Since we are not using precompiled headers anymore, remove common_includes.h so that fewer files are included in cpp files. Reordered includes to be in the following order: 1) Local ANGLE project headers, ordered by directory in descending depth 2) GL headers 3) STL headers This helps enforce the include-what-you-use principal by reducing the number of STL headers unexpectedly shared between files. This include order conflicts with some of the Google c++ style guide which states that STL includes should be first but this helps us catch more issues. Change-Id: I8f7785f4ad574e253dd3c7b4fb1e54d3ce3b99fc Reviewed-on: https://chromium-review.googlesource.com/214850 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>

• src/common/RefCountObject.h

• //
  // Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // RefCountObject.h: Defines the gl::RefCountObject base class that provides
  // lifecycle support for GL objects using the traditional BindObject scheme, but
  // that need to be reference counted for correct cross-context deletion.
  // (Concretely, textures, buffers and renderbuffers.)
  
  #ifndef COMMON_REFCOUNTOBJECT_H_
  #define COMMON_REFCOUNTOBJECT_H_
  
  #include "common/debug.h"
  
  #include "angle_gl.h"
  
  #include <cstddef>
  
  class RefCountObject
  {
    public:
      explicit RefCountObject(GLuint id);
      virtual ~RefCountObject();
  
      virtual void addRef() const;
      virtual void release() const;
  
      GLuint id() const { return mId; }
      
    private:
      GLuint mId;
  
      mutable std::size_t mRefCount;
  };
  
  class RefCountObjectBindingPointer
  {
    protected:
      RefCountObjectBindingPointer() : mObject(NULL) { }
      ~RefCountObjectBindingPointer() { ASSERT(mObject == NULL); } // Objects have to be released before the resource manager is destroyed, so they must be explicitly cleaned up.
  
      void set(RefCountObject *newObject);
      RefCountObject *get() const { return mObject; }
  
    public:
      GLuint id() const { return (mObject != NULL) ? mObject->id() : 0; }
      bool operator!() const { return (get() == NULL); }
  
    private:
      RefCountObject *mObject;
  };
  
  template <class ObjectType>
  class BindingPointer : public RefCountObjectBindingPointer
  {
    public:
      void set(ObjectType *newObject) { RefCountObjectBindingPointer::set(newObject); }
      ObjectType *get() const { return static_cast<ObjectType*>(RefCountObjectBindingPointer::get()); }
      ObjectType *operator->() const { return get(); }
  };
  
  template <class ObjectType>
  class OffsetBindingPointer : public RefCountObjectBindingPointer
  {
    public:
      OffsetBindingPointer() : mOffset(0), mSize(0) { }
  
      void set(ObjectType *newObject)
      {
          RefCountObjectBindingPointer::set(newObject);
          mOffset = 0;
          mSize = 0;
      }
  
      void set(ObjectType *newObject, GLintptr offset, GLsizeiptr size)
      {
          RefCountObjectBindingPointer::set(newObject);
          mOffset = offset;
          mSize = size;
      }
  
      GLintptr getOffset() const { return mOffset; }
      GLsizeiptr getSize() const { return mSize; }
  
      ObjectType *get() const { return static_cast<ObjectType*>(RefCountObjectBindingPointer::get()); }
      ObjectType *operator->() const { return get(); }
  
    private:
      GLintptr mOffset;
      GLsizeiptr mSize;
  };
  
  #endif   // COMMON_REFCOUNTOBJECT_H_