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

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• Hash : 007a4f06
  Author :
  Date : 2022-04-22T11:07:05
  

  Vulkan: Wayland resize callback
  
  Handle client resize requests and resize the swapchain accordingly after
  next buffer swap.
  
  Bug: angleproject:6902
  Change-Id: I8bd6b0d4efac041606f15eccb6befa28594905b2
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3608089
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Jeff Vigil <j.vigil@samsung.com>
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• src/libANGLE/renderer/vulkan/linux/wayland/WindowSurfaceVkWayland.h

• //
  // Copyright 2021-2022 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.
  //
  // WindowSurfaceVkWayland.h:
  //    Defines the class interface for WindowSurfaceVkWayland, implementing WindowSurfaceVk.
  //
  
  #ifndef LIBANGLE_RENDERER_VULKAN_WAYLAND_WINDOWSURFACEVKWAYLAND_H_
  #define LIBANGLE_RENDERER_VULKAN_WAYLAND_WINDOWSURFACEVKWAYLAND_H_
  
  #include "libANGLE/renderer/vulkan/SurfaceVk.h"
  
  struct wl_display;
  struct wl_egl_window;
  
  namespace rx
  {
  
  class WindowSurfaceVkWayland : public WindowSurfaceVk
  {
    public:
      // Requests of new sizes from client go through this callback, but actual resize will happen
      // before the next operation which would provoke a backbuffer to be pulled.
      static void ResizeCallback(wl_egl_window *window, void *payload);
  
      WindowSurfaceVkWayland(const egl::SurfaceState &surfaceState,
                             EGLNativeWindowType window,
                             wl_display *display);
  
      // On Wayland, currentExtent is undefined (0xFFFFFFFF, 0xFFFFFFFF).
      // Whatever the application sets a swapchain's imageExtent to will be the size of the window,
      // after the first image is presented
      egl::Error getUserWidth(const egl::Display *display, EGLint *value) const override;
      egl::Error getUserHeight(const egl::Display *display, EGLint *value) const override;
  
      angle::Result getAttachmentRenderTarget(const gl::Context *context,
                                              GLenum binding,
                                              const gl::ImageIndex &imageIndex,
                                              GLsizei samples,
                                              FramebufferAttachmentRenderTarget **rtOut) override;
  
    private:
      angle::Result createSurfaceVk(vk::Context *context, gl::Extents *extentsOut) override;
      angle::Result getCurrentWindowSize(vk::Context *context, gl::Extents *extentsOut) override;
  
      wl_display *mWaylandDisplay;
      gl::Extents mExtents;
      bool mResized;
  };
  
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_VULKAN_WAYLAND_WINDOWSURFACEVKWAYLAND_H_
  

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