kc3-lang/angle/src/libANGLE/renderer/null/RenderbufferNULL.cpp

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• Author : Jamie Madill
  Date : 2017-10-03 09:01:44
  Hash : 05b35b21
  Message : D3D11: Lazy robust resource init. This patch moves the robust resource init logic to the GL front-end. Instead of initializing texture resources immediately on creation in D3D11, it defers the clear until before a draw call in some cases, or skips the update if we can determine if a texture (or other resource) has been fully initialized. Currently lazy init is only implemented for Textures, Renderbuffers, and Surfaces. Various places where lazy resource init is triggered: * Framebuffer operations (Draw, Blit, CopyTexImage, Clear, ReadPixels) * Texture operations (SubImage, GenerateMipmap, CopyTexImage) Some efficiency gains remain to be implemented, such as when a SubImage call fills the entire object. Similarly for Blit, and a few other operations. In these cases we can skip lazy init as an optimization. Edge cases with EGLImage are mostly untested. BUG=angleproject:2107 Change-Id: I2bf3a69b1eae0d4feeb5b17daca23451f1037be8 Reviewed-on: https://chromium-review.googlesource.com/576058 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org>

• src/libANGLE/renderer/null/RenderbufferNULL.cpp

• //
  // Copyright 2016 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.
  //
  // RenderbufferNULL.cpp:
  //    Implements the class methods for RenderbufferNULL.
  //
  
  #include "libANGLE/renderer/null/RenderbufferNULL.h"
  
  #include "common/debug.h"
  
  namespace rx
  {
  
  RenderbufferNULL::RenderbufferNULL() : RenderbufferImpl()
  {
  }
  
  RenderbufferNULL::~RenderbufferNULL()
  {
  }
  
  gl::Error RenderbufferNULL::setStorage(const gl::Context *context,
                                         GLenum internalformat,
                                         size_t width,
                                         size_t height)
  {
      return gl::NoError();
  }
  
  gl::Error RenderbufferNULL::setStorageMultisample(const gl::Context *context,
                                                    size_t samples,
                                                    GLenum internalformat,
                                                    size_t width,
                                                    size_t height)
  {
      return gl::NoError();
  }
  
  gl::Error RenderbufferNULL::setStorageEGLImageTarget(const gl::Context *context, egl::Image *image)
  {
      return gl::NoError();
  }
  
  gl::Error RenderbufferNULL::initializeContents(const gl::Context *context,
                                                 const gl::ImageIndex &imageIndex)
  {
      return gl::NoError();
  }
  
  }  // namespace rx