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

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• Hash : a3944d4f
  Author :
  Date : 2016-07-22T22:13:26
  

  Add gl::Format to represent a texture/rb/surface format.
  
  This has a few advantages: it preserves all the information of the
  internal format, such as if it is sized or unsized. It also saves
  looking up the format multiple times in the table, which should
  improve speed in some cases.
  
  The extra sized-ness information will allow us to perform the
  correct validation in CopyTexSubImage calls.
  
  BUG=angleproject:1228
  
  Change-Id: I42954771b0a9a968f5d787b8cf6e0af721791855
  Reviewed-on: https://chromium-review.googlesource.com/362626
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/Renderbuffer.cpp

• //
  // Copyright (c) 2002-2012 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.cpp: Implements the renderer-agnostic gl::Renderbuffer class,
  // GL renderbuffer objects and related functionality.
  // [OpenGL ES 2.0.24] section 4.4.3 page 108.
  
  #include "libANGLE/Renderbuffer.h"
  
  #include "common/utilities.h"
  #include "libANGLE/FramebufferAttachment.h"
  #include "libANGLE/Image.h"
  #include "libANGLE/Texture.h"
  #include "libANGLE/formatutils.h"
  #include "libANGLE/renderer/d3d/RenderTargetD3D.h"
  
  namespace gl
  {
  Renderbuffer::Renderbuffer(rx::RenderbufferImpl *impl, GLuint id)
      : egl::ImageSibling(id),
        mRenderbuffer(impl),
        mLabel(),
        mWidth(0),
        mHeight(0),
        mFormat(GL_RGBA4),
        mSamples(0)
  {
  }
  
  Renderbuffer::~Renderbuffer()
  {
      SafeDelete(mRenderbuffer);
  }
  
  void Renderbuffer::setLabel(const std::string &label)
  {
      mLabel = label;
  }
  
  const std::string &Renderbuffer::getLabel() const
  {
      return mLabel;
  }
  
  Error Renderbuffer::setStorage(GLenum internalformat, size_t width, size_t height)
  {
      orphanImages();
  
      ANGLE_TRY(mRenderbuffer->setStorage(internalformat, width, height));
  
      mWidth          = static_cast<GLsizei>(width);
      mHeight         = static_cast<GLsizei>(height);
      mFormat         = Format(internalformat);
      mSamples = 0;
  
      mDirtyChannel.signal();
  
      return NoError();
  }
  
  Error Renderbuffer::setStorageMultisample(size_t samples, GLenum internalformat, size_t width, size_t height)
  {
      orphanImages();
  
      ANGLE_TRY(mRenderbuffer->setStorageMultisample(samples, internalformat, width, height));
  
      mWidth          = static_cast<GLsizei>(width);
      mHeight         = static_cast<GLsizei>(height);
      mFormat         = Format(internalformat);
      mSamples        = static_cast<GLsizei>(samples);
  
      mDirtyChannel.signal();
  
      return NoError();
  }
  
  Error Renderbuffer::setStorageEGLImageTarget(egl::Image *image)
  {
      orphanImages();
  
      ANGLE_TRY(mRenderbuffer->setStorageEGLImageTarget(image));
  
      setTargetImage(image);
  
      mWidth          = static_cast<GLsizei>(image->getWidth());
      mHeight         = static_cast<GLsizei>(image->getHeight());
      mFormat         = Format(image->getFormat());
      mSamples        = 0;
  
      mDirtyChannel.signal();
  
      return NoError();
  }
  
  rx::RenderbufferImpl *Renderbuffer::getImplementation()
  {
      ASSERT(mRenderbuffer);
      return mRenderbuffer;
  }
  
  const rx::RenderbufferImpl *Renderbuffer::getImplementation() const
  {
      return mRenderbuffer;
  }
  
  GLsizei Renderbuffer::getWidth() const
  {
      return mWidth;
  }
  
  GLsizei Renderbuffer::getHeight() const
  {
      return mHeight;
  }
  
  const Format &Renderbuffer::getFormat() const
  {
      return mFormat;
  }
  
  GLsizei Renderbuffer::getSamples() const
  {
      return mSamples;
  }
  
  GLuint Renderbuffer::getRedSize() const
  {
      return mFormat.info->redBits;
  }
  
  GLuint Renderbuffer::getGreenSize() const
  {
      return mFormat.info->greenBits;
  }
  
  GLuint Renderbuffer::getBlueSize() const
  {
      return mFormat.info->blueBits;
  }
  
  GLuint Renderbuffer::getAlphaSize() const
  {
      return mFormat.info->alphaBits;
  }
  
  GLuint Renderbuffer::getDepthSize() const
  {
      return mFormat.info->depthBits;
  }
  
  GLuint Renderbuffer::getStencilSize() const
  {
      return mFormat.info->stencilBits;
  }
  
  void Renderbuffer::onAttach()
  {
      addRef();
  }
  
  void Renderbuffer::onDetach()
  {
      release();
  }
  
  GLuint Renderbuffer::getId() const
  {
      return id();
  }
  
  Extents Renderbuffer::getAttachmentSize(const FramebufferAttachment::Target & /*target*/) const
  {
      return Extents(mWidth, mHeight, 1);
  }
  }  // namespace gl
  

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