kc3-lang/angle/src/libANGLE/FramebufferAttachment.h

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• Hash : 2207213b
  Author :
  Date : 2014-11-20T15:15:01
  

  Move as many files as possible from common to libANGLE.
  
  BUG=angle:733
  
  Change-Id: If01c91cd52ac5c2102276a9fdc4b68ebc13e47f9
  Reviewed-on: https://chromium-review.googlesource.com/231850
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Tested-by: Geoff Lang <geofflang@chromium.org>
  

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• src/libANGLE/FramebufferAttachment.h

• //
  // Copyright (c) 2014 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.
  //
  
  // FramebufferAttachment.h: Defines the wrapper class gl::FramebufferAttachment, as well as the
  // objects and related functionality. [OpenGL ES 2.0.24] section 4.4.3 page 108.
  
  #ifndef LIBANGLE_FRAMEBUFFERATTACHMENT_H_
  #define LIBANGLE_FRAMEBUFFERATTACHMENT_H_
  
  #include "libANGLE/Texture.h"
  #include "libANGLE/RefCountObject.h"
  
  #include "common/angleutils.h"
  
  #include "angle_gl.h"
  
  namespace rx
  {
  class DefaultAttachmentImpl;
  }
  
  namespace gl
  {
  class Renderbuffer;
  
  // FramebufferAttachment implements a GL framebuffer attachment.
  // Attachments are "light" containers, which store pointers to ref-counted GL objects.
  // We support GL texture (2D/3D/Cube/2D array) and renderbuffer object attachments.
  // Note: Our old naming scheme used the term "Renderbuffer" for both GL renderbuffers and for
  // framebuffer attachments, which confused their usage.
  
  class FramebufferAttachment
  {
    public:
      explicit FramebufferAttachment(GLenum binding);
      virtual ~FramebufferAttachment();
  
      // Helper methods
      GLuint getRedSize() const;
      GLuint getGreenSize() const;
      GLuint getBlueSize() const;
      GLuint getAlphaSize() const;
      GLuint getDepthSize() const;
      GLuint getStencilSize() const;
      GLenum getComponentType() const;
      GLenum getColorEncoding() const;
  
      bool isTextureWithId(GLuint textureId) const { return type() == GL_TEXTURE && id() == textureId; }
      bool isRenderbufferWithId(GLuint renderbufferId) const { return type() == GL_RENDERBUFFER && id() == renderbufferId; }
  
      GLenum getBinding() const { return mBinding; }
  
      // Child class interface
      virtual GLsizei getWidth() const = 0;
      virtual GLsizei getHeight() const = 0;
      virtual GLenum getInternalFormat() const = 0;
      virtual GLenum getActualFormat() const = 0;
      virtual GLsizei getSamples() const = 0;
  
      virtual GLuint id() const = 0;
      virtual GLenum type() const = 0;
      virtual GLint mipLevel() const = 0;
      virtual GLenum cubeMapFace() const = 0;
      virtual GLint layer() const = 0;
  
      virtual Texture *getTexture() = 0;
      virtual const ImageIndex *getTextureImageIndex() const = 0;
      virtual Renderbuffer *getRenderbuffer() = 0;
  
    private:
      DISALLOW_COPY_AND_ASSIGN(FramebufferAttachment);
  
      GLenum mBinding;
  };
  
  class TextureAttachment : public FramebufferAttachment
  {
    public:
      TextureAttachment(GLenum binding, Texture *texture, const ImageIndex &index);
      virtual ~TextureAttachment();
  
      virtual GLsizei getSamples() const;
      virtual GLuint id() const;
  
      virtual GLsizei getWidth() const;
      virtual GLsizei getHeight() const;
      virtual GLenum getInternalFormat() const;
      virtual GLenum getActualFormat() const;
  
      virtual GLenum type() const;
      virtual GLint mipLevel() const;
      virtual GLenum cubeMapFace() const;
      virtual GLint layer() const;
  
      virtual Texture *getTexture();
      virtual const ImageIndex *getTextureImageIndex() const;
      virtual Renderbuffer *getRenderbuffer();
  
    private:
      DISALLOW_COPY_AND_ASSIGN(TextureAttachment);
  
      BindingPointer<Texture> mTexture;
      ImageIndex mIndex;
  };
  
  class RenderbufferAttachment : public FramebufferAttachment
  {
    public:
      RenderbufferAttachment(GLenum binding, Renderbuffer *renderbuffer);
  
      virtual ~RenderbufferAttachment();
  
      virtual GLsizei getWidth() const;
      virtual GLsizei getHeight() const;
      virtual GLenum getInternalFormat() const;
      virtual GLenum getActualFormat() const;
      virtual GLsizei getSamples() const;
  
      virtual GLuint id() const;
      virtual GLenum type() const;
      virtual GLint mipLevel() const;
      virtual GLenum cubeMapFace() const;
      virtual GLint layer() const;
  
      virtual Texture *getTexture();
      virtual const ImageIndex *getTextureImageIndex() const;
      virtual Renderbuffer *getRenderbuffer();
  
    private:
      DISALLOW_COPY_AND_ASSIGN(RenderbufferAttachment);
  
      BindingPointer<Renderbuffer> mRenderbuffer;
  };
  
  class DefaultAttachment : public FramebufferAttachment
  {
    public:
      DefaultAttachment(GLenum binding, rx::DefaultAttachmentImpl *impl);
  
      virtual ~DefaultAttachment();
  
      virtual GLsizei getWidth() const;
      virtual GLsizei getHeight() const;
      virtual GLenum getInternalFormat() const;
      virtual GLenum getActualFormat() const;
      virtual GLsizei getSamples() const;
  
      virtual GLuint id() const;
      virtual GLenum type() const;
      virtual GLint mipLevel() const;
      virtual GLenum cubeMapFace() const;
      virtual GLint layer() const;
  
      virtual Texture *getTexture();
      virtual const ImageIndex *getTextureImageIndex() const;
      virtual Renderbuffer *getRenderbuffer();
  
      rx::DefaultAttachmentImpl *getImplementation() const;
  
    private:
      DISALLOW_COPY_AND_ASSIGN(DefaultAttachment);
  
      rx::DefaultAttachmentImpl *mImpl;
  };
  
  }
  
  #endif // LIBANGLE_FRAMEBUFFERATTACHMENT_H_
  

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