kc3-lang/angle/src/libANGLE/renderer/vulkan/linux/headless/WindowSurfaceVkHeadless.cpp

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• Hash : 79faadf7
  Author :
  Date : 2025-02-19T16:04:19
  

  Vulkan: Simple WindowSurfaceVk refactoring
  
  Changes:
  - Update `ImageAcquireState` enumeration.
  - Make `getCurrentWindowSize()` const. Some implementations are now
    using local `surfaceCaps` variable instead of `mSurfaceCaps`, however
    this will not affect reset of the logic.
  - Remove `extentsOut` parameter from `createSurfaceVk()` and call
    `getCurrentWindowSize()` explicitly only when needed.
  - Remove `forceSwapchainRecreate` parameter since it is always has false
    as an argument.
  - Remove redundant `impl::` namespace.
  - Make `queryAndAdjustSurfaceCaps()` const.
  
  Bug: angleproject:397848903
  Change-Id: I955be15fb4709e137f2ad8a165fd04a3fe626fbf
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6298732
  Reviewed-by: Charlie Lao <cclao@google.com>
  Commit-Queue: Igor Nazarov <i.nazarov@samsung.com>
  

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• src/libANGLE/renderer/vulkan/linux/headless/WindowSurfaceVkHeadless.cpp

• //
  // Copyright 2020 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.
  //
  // WindowSurfaceVkHeadless.cpp:
  //    Implements the class methods for WindowSurfaceVkHeadless.
  //
  
  #include "WindowSurfaceVkHeadless.h"
  #include "libANGLE/renderer/vulkan/vk_renderer.h"
  
  namespace rx
  {
  
  WindowSurfaceVkHeadless::WindowSurfaceVkHeadless(const egl::SurfaceState &surfaceState,
                                                   EGLNativeWindowType window)
      : WindowSurfaceVk(surfaceState, window)
  {}
  
  WindowSurfaceVkHeadless::~WindowSurfaceVkHeadless() {}
  
  angle::Result WindowSurfaceVkHeadless::createSurfaceVk(vk::ErrorContext *context)
  {
      vk::Renderer *renderer = context->getRenderer();
      ASSERT(renderer != nullptr);
      VkInstance instance = renderer->getInstance();
  
      VkHeadlessSurfaceCreateInfoEXT createInfo = {};
      createInfo.sType                          = VK_STRUCTURE_TYPE_HEADLESS_SURFACE_CREATE_INFO_EXT;
  
      ANGLE_VK_TRY(context, vkCreateHeadlessSurfaceEXT(instance, &createInfo, nullptr, &mSurface));
  
      return angle::Result::Continue;
  }
  
  angle::Result WindowSurfaceVkHeadless::getCurrentWindowSize(vk::ErrorContext *context,
                                                              gl::Extents *extentsOut) const
  {
      // Spec: "For headless surfaces, currentExtent is the reserved value (0xFFFFFFFF, 0xFFFFFFFF).
      // Whatever the application sets a swapchain's imageExtent to will be the size of the surface,
      // after the first image is presented."
      // For ANGLE, in headless mode, we share the same 'SimpleDisplayWindow' structure with front
      // EGL window info to define the vulkan backend surface/image extents.
      angle::vk::SimpleDisplayWindow *simpleWindow =
          reinterpret_cast<angle::vk::SimpleDisplayWindow *>(mNativeWindowType);
  
      *extentsOut = gl::Extents(simpleWindow->width, simpleWindow->height, 1);
  
      return angle::Result::Continue;
  }
  
  }  // namespace rx
  

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