kc3-lang/angle/src/libGLESv2/Renderbuffer.h

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• Hash : 9ecb9f9d
  Author :
  Date : 2010-07-28T19:21:12
  

  Sharing for buffer, texture and renderbuffer objects.
  
  TRAC #12496
  
  Derive Renderbuffer, Texture and Buffer from RefCountObject.
  This class keeps a reference count for all objects that need cross-context
  reference counting, and also the object id.
  Restructure Renderbuffers to create a wrapper object and a storage object.
  Use BindingPointer for all binding points instead of binding by object id.
  
  Signed-off-by: Shannon Woods
  Signed-off-by: Daniel Koch
  
  git-svn-id: https://angleproject.googlecode.com/svn/trunk@364 736b8ea6-26fd-11df-bfd4-992fa37f6226
  

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• src/libGLESv2/Renderbuffer.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.
  //
  
  // Renderbuffer.h: Defines the wrapper class gl::Renderbuffer, as well as the
  // class hierarchy used to store its contents: RenderbufferStorage, Colorbuffer,
  // DepthStencilbuffer, Depthbuffer and Stencilbuffer. Implements GL renderbuffer
  // objects and related functionality. [OpenGL ES 2.0.24] section 4.4.3 page 108.
  
  #ifndef LIBGLESV2_RENDERBUFFER_H_
  #define LIBGLESV2_RENDERBUFFER_H_
  
  #define GL_APICALL
  #include <GLES2/gl2.h>
  #include <d3d9.h>
  
  #include "common/angleutils.h"
  #include "libGLESv2/RefCountObject.h"
  
  namespace gl
  {
  
  // A class derived from RenderbufferStorage is created whenever glRenderbufferStorage
  // is called. The specific concrete type depends on whether the internal format is
  // colour depth, stencil or packed depth/stencil.
  class RenderbufferStorage
  {
    public:
      RenderbufferStorage();
  
      virtual ~RenderbufferStorage() = 0;
  
      virtual bool isColorbuffer() const;
      virtual bool isDepthbuffer() const;
      virtual bool isStencilbuffer() const;
  
      virtual IDirect3DSurface9 *getRenderTarget();
      virtual IDirect3DSurface9 *getDepthStencil();
  
      virtual int getWidth() const;
      virtual int getHeight() const;
      GLenum getFormat() const;
      unsigned int getSerial() const;
  
      static unsigned int issueSerial();
  
    protected:
      void setSize(int width, int height);
      GLenum mFormat;
      unsigned int mSerial;
  
    private:
      DISALLOW_COPY_AND_ASSIGN(RenderbufferStorage);
  
      static unsigned int mCurrentSerial;
  
      int mWidth;
      int mHeight;
  };
  
  // Renderbuffer implements the GL renderbuffer object.
  // It's only a wrapper for a RenderbufferStorage, but the internal object
  // can change whenever glRenderbufferStorage is called.
  class Renderbuffer : public RefCountObject
  {
    public:
      Renderbuffer(GLuint id, RenderbufferStorage *storage);
  
      ~Renderbuffer();
  
      bool isColorbuffer() const;
      bool isDepthbuffer() const;
      bool isStencilbuffer() const;
  
      IDirect3DSurface9 *getRenderTarget();
      IDirect3DSurface9 *getDepthStencil();
  
      int getWidth() const;
      int getHeight() const;
      GLenum getFormat() const;
      unsigned int getSerial() const;
  
      void setStorage(RenderbufferStorage *newStorage);
      RenderbufferStorage *getStorage() { return mStorage; }
  
    private:
      DISALLOW_COPY_AND_ASSIGN(Renderbuffer);
  
      RenderbufferStorage *mStorage;
  };
  
  class Colorbuffer : public RenderbufferStorage
  {
    public:
      explicit Colorbuffer(IDirect3DSurface9 *renderTarget);
      Colorbuffer(int width, int height, GLenum format);
  
      ~Colorbuffer();
  
      bool isColorbuffer() const;
  
      GLuint getRedSize() const;
      GLuint getGreenSize() const;
      GLuint getBlueSize() const;
      GLuint getAlphaSize() const;
  
      IDirect3DSurface9 *getRenderTarget();
  
    protected:
      IDirect3DSurface9 *mRenderTarget;
  
    private:
      DISALLOW_COPY_AND_ASSIGN(Colorbuffer);
  };
  
  class DepthStencilbuffer : public RenderbufferStorage
  {
    public:
      explicit DepthStencilbuffer(IDirect3DSurface9 *depthStencil);
      DepthStencilbuffer(int width, int height);
  
      ~DepthStencilbuffer();
  
      virtual bool isDepthbuffer() const;
      virtual bool isStencilbuffer() const;
  
      GLuint getDepthSize() const;
      GLuint getStencilSize() const;
  
      IDirect3DSurface9 *getDepthStencil();
  
    private:
      DISALLOW_COPY_AND_ASSIGN(DepthStencilbuffer);
      IDirect3DSurface9 *mDepthStencil;
  };
  
  class Depthbuffer : public DepthStencilbuffer
  {
    public:
      explicit Depthbuffer(IDirect3DSurface9 *depthStencil);
      Depthbuffer(int width, int height);
  
      ~Depthbuffer();
  
      bool isDepthbuffer() const;
      bool isStencilbuffer() const;
  
    private:
      DISALLOW_COPY_AND_ASSIGN(Depthbuffer);
  };
  
  class Stencilbuffer : public DepthStencilbuffer
  {
    public:
      explicit Stencilbuffer(IDirect3DSurface9 *depthStencil);
      Stencilbuffer(int width, int height);
  
      ~Stencilbuffer();
  
      bool isDepthbuffer() const;
      bool isStencilbuffer() const;
  
    private:
      DISALLOW_COPY_AND_ASSIGN(Stencilbuffer);
  };
  }
  
  #endif   // LIBGLESV2_RENDERBUFFER_H_
  

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