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

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• Hash : 24ac8500
  Author :
  Date : 2013-05-30T00:01:37
  

  Add a helper method to gl::Framebuffer to check if we are drawing to color attachment 0 only.
  
  TRAC #22898
  
  Signed-off-by: Geoff Lang
  Signed-off-by: Shannon Woods
  Author: Jamie Madill
  
  git-svn-id: https://angleproject.googlecode.com/svn/branches/es3proto@2263 736b8ea6-26fd-11df-bfd4-992fa37f6226
  

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• src/libGLESv2/Framebuffer.h

• //
  // Copyright (c) 2002-2013 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.
  //
  
  // Framebuffer.h: Defines the gl::Framebuffer class. Implements GL framebuffer
  // objects and related functionality. [OpenGL ES 2.0.24] section 4.4 page 105.
  
  #ifndef LIBGLESV2_FRAMEBUFFER_H_
  #define LIBGLESV2_FRAMEBUFFER_H_
  
  #include "common/angleutils.h"
  #include "common/RefCountObject.h"
  #include "constants.h"
  
  namespace rx
  {
  class Renderer;
  }
  
  namespace gl
  {
  class Renderbuffer;
  class Colorbuffer;
  class Depthbuffer;
  class Stencilbuffer;
  class DepthStencilbuffer;
  
  class Framebuffer
  {
    public:
      explicit Framebuffer(rx::Renderer *renderer);
  
      virtual ~Framebuffer();
  
      void setColorbuffer(unsigned int colorAttachment, GLenum type, GLuint colorbuffer);
      void setDepthbuffer(GLenum type, GLuint depthbuffer);
      void setStencilbuffer(GLenum type, GLuint stencilbuffer);
  
      void detachTexture(GLuint texture);
      void detachRenderbuffer(GLuint renderbuffer);
  
      unsigned int getRenderTargetSerial(unsigned int colorAttachment) const;
      unsigned int getDepthbufferSerial() const;
      unsigned int getStencilbufferSerial() const;
  
      Renderbuffer *getColorbuffer(unsigned int colorAttachment) const;
      Renderbuffer *getDepthbuffer() const;
      Renderbuffer *getStencilbuffer() const;
      Renderbuffer *getDepthOrStencilbuffer() const;
      Renderbuffer *getReadColorbuffer() const;
      GLenum getReadColorbufferType() const;
      Renderbuffer *getFirstColorbuffer() const;
  
      GLenum getColorbufferType(unsigned int colorAttachment) const;
      GLenum getDepthbufferType() const;
      GLenum getStencilbufferType() const;
  
      GLuint getColorbufferHandle(unsigned int colorAttachment) const;
      GLuint getDepthbufferHandle() const;
      GLuint getStencilbufferHandle() const;
  
      GLenum getDrawBufferState(unsigned int colorAttachment) const;
      void setDrawBufferState(unsigned int colorAttachment, GLenum drawBuffer);
  
      bool isEnabledColorAttachment(unsigned int colorAttachment) const;
      bool hasEnabledColorAttachment() const;
      bool hasStencil() const;
      int getSamples() const;
      bool usingExtendedDrawBuffers() const;
  
      virtual GLenum completeness() const;
  
    protected:
      GLenum mColorbufferTypes[IMPLEMENTATION_MAX_DRAW_BUFFERS];
      BindingPointer<Renderbuffer> mColorbufferPointers[IMPLEMENTATION_MAX_DRAW_BUFFERS];
      GLenum mDrawBufferStates[IMPLEMENTATION_MAX_DRAW_BUFFERS];
      GLenum mReadBufferState;
  
      GLenum mDepthbufferType;
      BindingPointer<Renderbuffer> mDepthbufferPointer;
  
      GLenum mStencilbufferType;
      BindingPointer<Renderbuffer> mStencilbufferPointer;
  
      rx::Renderer *mRenderer;
  
    private:
      DISALLOW_COPY_AND_ASSIGN(Framebuffer);
  
      Renderbuffer *lookupRenderbuffer(GLenum type, GLuint handle) const;
  };
  
  class DefaultFramebuffer : public Framebuffer
  {
    public:
      DefaultFramebuffer(rx::Renderer *Renderer, Colorbuffer *colorbuffer, DepthStencilbuffer *depthStencil);
  
      virtual GLenum completeness() const;
  
    private:
      DISALLOW_COPY_AND_ASSIGN(DefaultFramebuffer);
  };
  
  }
  
  #endif   // LIBGLESV2_FRAMEBUFFER_H_
  

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