kc3-lang/angle/src/libANGLE/renderer/vulkan/ggp/DisplayVkGGP.cpp

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• Hash : 84bd9dad
  Author :
  Date : 2020-08-26T22:01:44
  

  Vulkan: Allow pbuffer usage if no window support
  
  Vulkan allows rendering to non-swapchain images, so pbuffers can always
  be supported on every config.  With this change, if the window system
  does not support a configuration, EGL_WINDOW_BIT is removed from the
  config instead of dropping the config entirely.
  
  Bug: chromium:1034840
  Change-Id: Ib972ed8ddf7660c327123fa83ae0674456cf2a35
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2378921
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: back sept 10 - Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/renderer/vulkan/ggp/DisplayVkGGP.cpp

• //
  // Copyright 2019 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.
  //
  // DisplayVkGGP.cpp:
  //    Implements the class methods for DisplayVkGGP.
  //
  
  #include "libANGLE/renderer/vulkan/ggp/DisplayVkGGP.h"
  
  #include "libANGLE/renderer/vulkan/ggp/WindowSurfaceVkGGP.h"
  #include "libANGLE/renderer/vulkan/vk_caps_utils.h"
  
  namespace rx
  {
  DisplayVkGGP::DisplayVkGGP(const egl::DisplayState &state) : DisplayVk(state) {}
  
  bool DisplayVkGGP::isValidNativeWindow(EGLNativeWindowType window) const
  {
      // GGP doesn't use window handles.
      return true;
  }
  
  SurfaceImpl *DisplayVkGGP::createWindowSurfaceVk(const egl::SurfaceState &state,
                                                   EGLNativeWindowType window)
  {
      return new WindowSurfaceVkGGP(state, window);
  }
  
  egl::ConfigSet DisplayVkGGP::generateConfigs()
  {
      // Not entirely sure what backbuffer formats GGP supports.
      constexpr GLenum kColorFormats[] = {GL_BGRA8_EXT, GL_BGRX8_ANGLEX};
      return egl_vk::GenerateConfigs(kColorFormats, egl_vk::kConfigDepthStencilFormats, this);
  }
  
  void DisplayVkGGP::checkConfigSupport(egl::Config *config) {}
  
  const char *DisplayVkGGP::getWSIExtension() const
  {
      return VK_GGP_STREAM_DESCRIPTOR_SURFACE_EXTENSION_NAME;
  }
  
  bool IsVulkanGGPDisplayAvailable()
  {
      return true;
  }
  
  DisplayImpl *CreateVulkanGGPDisplay(const egl::DisplayState &state)
  {
      return new DisplayVkGGP(state);
  }
  }  // namespace rx
  

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