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

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• Hash : 8cf4a39b
  Author :
  Date : 2015-04-02T11:36:04
  

  Return a ref for FBO attachment image indexes.
  
  This cleans up the syntax somewhat. Also place some more of the
  helper methods in the header.
  
  BUG=angleproject:963
  
  Change-Id: I62419095a7b65486f54d74791027594e8e595e48
  Reviewed-on: https://chromium-review.googlesource.com/263629
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Tested-by: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/FramebufferAttachment.cpp

• //
  // 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.cpp: the gl::FramebufferAttachment class and its derived classes
  // objects and related functionality. [OpenGL ES 2.0.24] section 4.4.3 page 108.
  
  #include "libANGLE/FramebufferAttachment.h"
  
  #include "common/utilities.h"
  #include "libANGLE/Config.h"
  #include "libANGLE/Renderbuffer.h"
  #include "libANGLE/Surface.h"
  #include "libANGLE/Texture.h"
  #include "libANGLE/formatutils.h"
  #include "libANGLE/renderer/FramebufferImpl.h"
  
  namespace gl
  {
  
  ////// FramebufferAttachment Implementation //////
  
  FramebufferAttachment::FramebufferAttachment(GLenum binding,
                                               const ImageIndex &textureIndex,
                                               RefCountObject *resource)
      : mBinding(binding),
        mTextureIndex(textureIndex)
  {
      mResource.set(resource);
  }
  
  FramebufferAttachment::~FramebufferAttachment()
  {
      mResource.set(nullptr);
  }
  
  GLuint FramebufferAttachment::getRedSize() const
  {
      return GetInternalFormatInfo(getInternalFormat()).redBits;
  }
  
  GLuint FramebufferAttachment::getGreenSize() const
  {
      return GetInternalFormatInfo(getInternalFormat()).greenBits;
  }
  
  GLuint FramebufferAttachment::getBlueSize() const
  {
      return GetInternalFormatInfo(getInternalFormat()).blueBits;
  }
  
  GLuint FramebufferAttachment::getAlphaSize() const
  {
      return GetInternalFormatInfo(getInternalFormat()).alphaBits;
  }
  
  GLuint FramebufferAttachment::getDepthSize() const
  {
      return GetInternalFormatInfo(getInternalFormat()).depthBits;
  }
  
  GLuint FramebufferAttachment::getStencilSize() const
  {
      return GetInternalFormatInfo(getInternalFormat()).stencilBits;
  }
  
  GLenum FramebufferAttachment::getComponentType() const
  {
      return GetInternalFormatInfo(getInternalFormat()).componentType;
  }
  
  GLenum FramebufferAttachment::getColorEncoding() const
  {
      return GetInternalFormatInfo(getInternalFormat()).colorEncoding;
  }
  
  const ImageIndex &FramebufferAttachment::getTextureImageIndex() const
  {
      ASSERT(type() == GL_TEXTURE);
      return mTextureIndex;
  }
  
  GLenum FramebufferAttachment::cubeMapFace() const
  {
      ASSERT(type() == GL_TEXTURE);
      return IsCubeMapTextureTarget(mTextureIndex.type) ? mTextureIndex.type : GL_NONE;
  }
  
  GLint FramebufferAttachment::mipLevel() const
  {
      ASSERT(type() == GL_TEXTURE);
      return mTextureIndex.mipIndex;
  }
  
  GLint FramebufferAttachment::layer() const
  {
      ASSERT(type() == GL_TEXTURE);
      if (mTextureIndex.type == GL_TEXTURE_2D_ARRAY || mTextureIndex.type == GL_TEXTURE_3D)
      {
          return mTextureIndex.layerIndex;
      }
      return 0;
  }
  
  ///// TextureAttachment Implementation ////////
  
  TextureAttachment::TextureAttachment(GLenum binding, Texture *texture, const ImageIndex &index)
      : FramebufferAttachment(binding, index, texture)
  {
  }
  
  TextureAttachment::~TextureAttachment()
  {
  }
  
  GLsizei TextureAttachment::getSamples() const
  {
      return 0;
  }
  
  GLsizei TextureAttachment::getWidth() const
  {
      return getTexture()->getWidth(mTextureIndex.type, mTextureIndex.mipIndex);
  }
  
  GLsizei TextureAttachment::getHeight() const
  {
      return getTexture()->getHeight(mTextureIndex.type, mTextureIndex.mipIndex);
  }
  
  GLenum TextureAttachment::getInternalFormat() const
  {
      return getTexture()->getInternalFormat(mTextureIndex.type, mTextureIndex.mipIndex);
  }
  
  GLenum TextureAttachment::type() const
  {
      return GL_TEXTURE;
  }
  
  Renderbuffer *TextureAttachment::getRenderbuffer() const
  {
      UNREACHABLE();
      return nullptr;
  }
  
  ////// RenderbufferAttachment Implementation //////
  
  RenderbufferAttachment::RenderbufferAttachment(GLenum binding, Renderbuffer *renderbuffer)
      : FramebufferAttachment(binding, ImageIndex::MakeInvalid(), renderbuffer)
  {
      ASSERT(renderbuffer);
  }
  
  RenderbufferAttachment::~RenderbufferAttachment()
  {
  }
  
  GLsizei RenderbufferAttachment::getWidth() const
  {
      return getRenderbuffer()->getWidth();
  }
  
  GLsizei RenderbufferAttachment::getHeight() const
  {
      return getRenderbuffer()->getHeight();
  }
  
  GLenum RenderbufferAttachment::getInternalFormat() const
  {
      return getRenderbuffer()->getInternalFormat();
  }
  
  GLsizei RenderbufferAttachment::getSamples() const
  {
      return getRenderbuffer()->getSamples();
  }
  
  GLenum RenderbufferAttachment::type() const
  {
      return GL_RENDERBUFFER;
  }
  
  Texture *RenderbufferAttachment::getTexture() const
  {
      UNREACHABLE();
      return nullptr;
  }
  
  DefaultAttachment::DefaultAttachment(GLenum binding, egl::Surface *surface)
      : FramebufferAttachment(binding, ImageIndex::MakeInvalid(), surface)
  {
  }
  
  DefaultAttachment::~DefaultAttachment()
  {
  }
  
  GLsizei DefaultAttachment::getWidth() const
  {
      return getSurface()->getWidth();
  }
  
  GLsizei DefaultAttachment::getHeight() const
  {
      return getSurface()->getHeight();
  }
  
  GLenum DefaultAttachment::getInternalFormat() const
  {
      const egl::Config *config = getSurface()->getConfig();
      return (getBinding() == GL_BACK ? config->renderTargetFormat : config->depthStencilFormat);
  }
  
  GLsizei DefaultAttachment::getSamples() const
  {
      const egl::Config *config = getSurface()->getConfig();
      return config->samples;
  }
  
  GLenum DefaultAttachment::type() const
  {
      return GL_FRAMEBUFFER_DEFAULT;
  }
  
  Texture *DefaultAttachment::getTexture() const
  {
      UNREACHABLE();
      return nullptr;
  }
  
  Renderbuffer *DefaultAttachment::getRenderbuffer() const
  {
      UNREACHABLE();
      return nullptr;
  }
  
  }
  

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