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

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• Hash : 8c12874c
  Author :
  Date : 2024-09-12T11:26:29
  

  vulkan: add double buffer swapchain for fifo mode.
  
  Double buffer swapchain usually drop the performance.
  But at B* the default fps cap for silver device still at 30fps.
  This change is for reduce latency.
  
  Bug: b/311022968
  Change-Id: Ida4044f439bbe3f235d53f5d1d2f945533cbb094
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5858255
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• src/libANGLE/renderer/null/SurfaceNULL.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.
  //
  // SurfaceNULL.cpp:
  //    Implements the class methods for SurfaceNULL.
  //
  
  #include "libANGLE/renderer/null/SurfaceNULL.h"
  
  #include "common/debug.h"
  
  #include "libANGLE/renderer/null/FramebufferNULL.h"
  
  namespace rx
  {
  
  SurfaceNULL::SurfaceNULL(const egl::SurfaceState &surfaceState) : SurfaceImpl(surfaceState) {}
  
  SurfaceNULL::~SurfaceNULL() {}
  
  egl::Error SurfaceNULL::initialize(const egl::Display *display)
  {
      return egl::NoError();
  }
  
  egl::Error SurfaceNULL::swap(const gl::Context *context)
  {
      return egl::NoError();
  }
  
  egl::Error SurfaceNULL::postSubBuffer(const gl::Context *context,
                                        EGLint x,
                                        EGLint y,
                                        EGLint width,
                                        EGLint height)
  {
      return egl::NoError();
  }
  
  egl::Error SurfaceNULL::querySurfacePointerANGLE(EGLint attribute, void **value)
  {
      UNREACHABLE();
      return egl::NoError();
  }
  
  egl::Error SurfaceNULL::bindTexImage(const gl::Context *context,
                                       gl::Texture *texture,
                                       EGLint buffer)
  {
      return egl::NoError();
  }
  
  egl::Error SurfaceNULL::releaseTexImage(const gl::Context *context, EGLint buffer)
  {
      return egl::NoError();
  }
  
  egl::Error SurfaceNULL::getSyncValues(EGLuint64KHR *ust, EGLuint64KHR *msc, EGLuint64KHR *sbc)
  {
      UNIMPLEMENTED();
      return egl::EglBadAccess();
  }
  
  egl::Error SurfaceNULL::getMscRate(EGLint *numerator, EGLint *denominator)
  {
      UNIMPLEMENTED();
      return egl::EglBadAccess();
  }
  
  void SurfaceNULL::setSwapInterval(const egl::Display *display, EGLint interval) {}
  
  EGLint SurfaceNULL::getWidth() const
  {
      // TODO(geofflang): Read from an actual window?
      return 100;
  }
  
  EGLint SurfaceNULL::getHeight() const
  {
      // TODO(geofflang): Read from an actual window?
      return 100;
  }
  
  EGLint SurfaceNULL::isPostSubBufferSupported() const
  {
      return EGL_TRUE;
  }
  
  EGLint SurfaceNULL::getSwapBehavior() const
  {
      return EGL_BUFFER_PRESERVED;
  }
  
  angle::Result SurfaceNULL::initializeContents(const gl::Context *context,
                                                GLenum binding,
                                                const gl::ImageIndex &imageIndex)
  {
      return angle::Result::Continue;
  }
  
  egl::Error SurfaceNULL::attachToFramebuffer(const gl::Context *context,
                                              gl::Framebuffer *framebuffer)
  {
      return egl::NoError();
  }
  
  egl::Error SurfaceNULL::detachFromFramebuffer(const gl::Context *context,
                                                gl::Framebuffer *framebuffer)
  {
      return egl::NoError();
  }
  
  }  // namespace rx
  

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