kc3-lang/angle/src/libANGLE/renderer/vulkan/linux/DisplayVkOffscreen.h

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• Hash : d2a6b2a0
  Author :
  Date : 2023-08-04T14:15:11
  

  Use offscreen DisplayVk on ChromeOS
  
  Currently, we always use DisplayVkHeadless on ChromeOS which can
  fail if the drivers do not support VK_EXT_headless_surface (like on
  Intel). At the end of the day, CrOS never really uses Vulkan WSI, so
  it shouldn't need a WSI extension anyways.
  
  This CL introduces a simple DisplayVkOffscreen that requires no WSI.
  We then configure CrOS to use this new DisplayVk.
  
  Bug: b/292249282
  Change-Id: I1fcbb48d187eb656c6e03bc7ac7b15ac8ad0a4ae
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4752416
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  Commit-Queue: Brian Ho <hob@chromium.org>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• src/libANGLE/renderer/vulkan/linux/DisplayVkOffscreen.h

• //
  // Copyright 2023 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.
  //
  // DisplayVkOffscreen.h:
  //    Defines the class interface for DisplayVkOffscreen, implementing
  //    DisplayVk for Linux when window surfaces are not supported.
  //
  
  #ifndef LIBANGLE_RENDERER_VULKAN_LINUX_DISPLAYVKOFFSCREEN_H_
  #define LIBANGLE_RENDERER_VULKAN_LINUX_DISPLAYVKOFFSCREEN_H_
  
  #include "libANGLE/renderer/vulkan/linux/DisplayVkLinux.h"
  
  namespace rx
  {
  
  class DisplayVkOffscreen : public DisplayVkLinux
  {
    public:
      DisplayVkOffscreen(const egl::DisplayState &state);
      bool isValidNativeWindow(EGLNativeWindowType window) const override;
      bool isUsingSwapchain() const override;
      SurfaceImpl *createWindowSurfaceVk(const egl::SurfaceState &state,
                                         EGLNativeWindowType window) override;
      egl::ConfigSet generateConfigs() override;
      void checkConfigSupport(egl::Config *config) override;
      const char *getWSIExtension() const override;
  };
  
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_VULKAN_LINUX_DISPLAYVKOFFSCREEN_H_
  

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