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

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• Author : Jamie Madill
  Date : 2016-07-22 22:13:26
  Hash : a3944d4f
  Message : 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>

• 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