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

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• Hash : 612e2e44
  Author :
  Date : 2014-09-12T13:26:55
  

  Add a helper to replace FBO attachment's getSerial.
  
  Ideally we could store a render target serial in the render target
  itself. For now, this helper function allows us to finally stop
  exposing rx::RenderTarget from gl::Texture.
  
  BUG=angle:732
  
  Change-Id: I4ffc5e0af6f0542212ad4e74adced21ebbd89462
  Reviewed-on: https://chromium-review.googlesource.com/217330
  Reviewed-by: Shannon Woods <shannonwoods@chromium.org>
  Tested-by: Jamie Madill <jmadill@chromium.org>
  

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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 <vector>
  
  #include "common/angleutils.h"
  #include "common/RefCountObject.h"
  #include "constants.h"
  
  namespace rx
  {
  class Renderer;
  }
  
  namespace gl
  {
  class FramebufferAttachment;
  class Colorbuffer;
  class Depthbuffer;
  class Stencilbuffer;
  class DepthStencilbuffer;
  struct Caps;
  
  typedef std::vector<FramebufferAttachment *> ColorbufferInfo;
  
  class Framebuffer
  {
    public:
      Framebuffer(rx::Renderer *renderer, GLuint id);
  
      virtual ~Framebuffer();
  
      GLuint id() const { return mId; }
  
      void setColorbuffer(unsigned int colorAttachment, GLenum type, GLuint colorbuffer, GLint level, GLint layer);
      void setDepthbuffer(GLenum type, GLuint depthbuffer, GLint level, GLint layer);
      void setStencilbuffer(GLenum type, GLuint stencilbuffer, GLint level, GLint layer);
      void setDepthStencilBuffer(GLenum type, GLuint depthStencilBuffer, GLint level, GLint layer);
  
      void detachTexture(GLuint texture);
      void detachRenderbuffer(GLuint renderbuffer);
  
      FramebufferAttachment *getColorbuffer(unsigned int colorAttachment) const;
      FramebufferAttachment *getDepthbuffer() const;
      FramebufferAttachment *getStencilbuffer() const;
      FramebufferAttachment *getDepthStencilBuffer() const;
      FramebufferAttachment *getDepthOrStencilbuffer() const;
      FramebufferAttachment *getReadColorbuffer() const;
      GLenum getReadColorbufferType() const;
      FramebufferAttachment *getFirstColorbuffer() const;
  
      virtual FramebufferAttachment *getAttachment(GLenum attachment) 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;
      bool hasValidDepthStencil() const;
  
      void invalidate(const Caps &caps, GLsizei numAttachments, const GLenum *attachments);
      void invalidateSub(const Caps &caps, GLsizei numAttachments, const GLenum *attachments,
                         GLint x, GLint y, GLsizei width, GLsizei height);
  
      // Use this method to retrieve the color buffer map when doing rendering.
      // It will apply a workaround for poor shader performance on some systems
      // by compacting the list to skip NULL values.
      ColorbufferInfo getColorbuffersForRender() const;
  
    protected:
      rx::Renderer *mRenderer;
  
      GLuint mId;
  
      FramebufferAttachment *mColorbuffers[IMPLEMENTATION_MAX_DRAW_BUFFERS];
      GLenum mDrawBufferStates[IMPLEMENTATION_MAX_DRAW_BUFFERS];
      GLenum mReadBufferState;
  
      FramebufferAttachment *mDepthbuffer;
      FramebufferAttachment *mStencilbuffer;
  
    private:
      DISALLOW_COPY_AND_ASSIGN(Framebuffer);
  
      FramebufferAttachment *createAttachment(GLenum binding, GLenum type, GLuint handle, GLint level, GLint layer) const;
  };
  
  class DefaultFramebuffer : public Framebuffer
  {
    public:
      DefaultFramebuffer(rx::Renderer *Renderer, Colorbuffer *colorbuffer, DepthStencilbuffer *depthStencil);
  
      virtual GLenum completeness() const;
      virtual FramebufferAttachment *getAttachment(GLenum attachment) const;
  
    private:
      DISALLOW_COPY_AND_ASSIGN(DefaultFramebuffer);
  };
  
  }
  
  namespace rx
  {
  class RenderTarget;
  
  // TODO: place this in FramebufferD3D.h
  RenderTarget *GetAttachmentRenderTarget(gl::FramebufferAttachment *attachment);
  unsigned int GetAttachmentSerial(gl::FramebufferAttachment *attachment);
  
  }
  
  #endif   // LIBGLESV2_FRAMEBUFFER_H_
  

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