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

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• Author : Jamie Madill
  Date : 2015-04-14 08:13:47
  Hash : 79481d65
  Message : Add FramebufferAttachmentObject base class. This lets us share objects (Textures/RBs/Surface) in the attachment class. It will let us squash the attachment classes into one type, which will in turn let us store them by-value, instead of by-pointer. BUG=angleproject:963 Change-Id: Ia9a43dbc3b99475c00f6bc2ed5475deef55addc3 Reviewed-on: https://chromium-review.googlesource.com/263487 Reviewed-by: Kenneth Russell <kbr@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>

• src/libANGLE/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 renderer-agnostic container class gl::Renderbuffer.
  // Implements GL renderbuffer objects and related functionality.
  // [OpenGL ES 2.0.24] section 4.4.3 page 108.
  
  #ifndef LIBANGLE_RENDERBUFFER_H_
  #define LIBANGLE_RENDERBUFFER_H_
  
  #include "angle_gl.h"
  #include "common/angleutils.h"
  #include "libANGLE/Error.h"
  #include "libANGLE/FramebufferAttachment.h"
  
  namespace rx
  {
  class RenderbufferImpl;
  }
  
  namespace gl
  {
  // A GL renderbuffer object is usually used as a depth or stencil buffer attachment
  // for a framebuffer object. The renderbuffer itself is a distinct GL object, see
  // FramebufferAttachment and Framebuffer for how they are applied to an FBO via an
  // attachment point.
  
  class Renderbuffer : public FramebufferAttachmentObject
  {
    public:
      Renderbuffer(rx::RenderbufferImpl *impl, GLuint id);
      virtual ~Renderbuffer();
  
      Error setStorage(GLenum internalformat, size_t width, size_t height);
      Error setStorageMultisample(size_t samples, GLenum internalformat, size_t width, size_t height);
  
      rx::RenderbufferImpl *getImplementation();
      const rx::RenderbufferImpl *getImplementation() const;
  
      GLsizei getWidth() const;
      GLsizei getHeight() const;
      GLenum getInternalFormat() const;
      GLsizei getSamples() const;
      GLuint getRedSize() const;
      GLuint getGreenSize() const;
      GLuint getBlueSize() const;
      GLuint getAlphaSize() const;
      GLuint getDepthSize() const;
      GLuint getStencilSize() const;
  
      // FramebufferAttachmentObject Impl
      GLsizei getAttachmentWidth(const FramebufferAttachment::Target &/*target*/) const override { return getWidth(); }
      GLsizei getAttachmentHeight(const FramebufferAttachment::Target &/*target*/) const override { return getHeight(); }
      GLenum getAttachmentInternalFormat(const FramebufferAttachment::Target &/*target*/) const override { return getInternalFormat(); }
      GLsizei getAttachmentSamples(const FramebufferAttachment::Target &/*target*/) const override { return getSamples(); }
  
    private:
      rx::RenderbufferImpl *mRenderbuffer;
  
      GLsizei mWidth;
      GLsizei mHeight;
      GLenum mInternalFormat;
      GLsizei mSamples;
  };
  
  }
  
  #endif   // LIBANGLE_RENDERBUFFER_H_