kc3-lang/angle/src/libANGLE/renderer/wgpu/mac/WindowSurfaceWgpuMetalLayer.mm

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• Hash : f0c46b2a
  Author :
  Date : 2025-05-25T10:44:23
  

  WebGPU: Do not set autoresizingMask on the iOS Metal Layer
  
  autoresizingMask is not a member on iOS builds. This mirrors the window
  surface in the Metal backend.
  
  Bug: angleproject:342213844
  Change-Id: I8b5cfbb2b7f7af4f3284ddd7055e68e762c77883
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6584993
  Reviewed-by: Colin Blundell <blundell@chromium.org>
  Commit-Queue: Geoff Lang <geofflang@chromium.org>
  

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• src/libANGLE/renderer/wgpu/mac/WindowSurfaceWgpuMetalLayer.mm

• //
  // Copyright 2024 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.
  //
  // WindowSurfaceWgpuMetalLayer.cpp:
  //    Defines the class interface for WindowSurfaceWgpuMetalLayer, implementing WindowSurfaceWgpu.
  //
  
  #include "libANGLE/renderer/wgpu/mac/WindowSurfaceWgpuMetalLayer.h"
  
  #include <Metal/Metal.h>
  #include <QuartzCore/CAMetalLayer.h>
  
  #include "libANGLE/Display.h"
  #include "libANGLE/renderer/wgpu/DisplayWgpu.h"
  #include "libANGLE/renderer/wgpu/wgpu_utils.h"
  
  namespace rx
  {
  
  WindowSurfaceWgpuMetalLayer::WindowSurfaceWgpuMetalLayer(const egl::SurfaceState &surfaceState,
                                                           EGLNativeWindowType window)
      : WindowSurfaceWgpu(surfaceState, window)
  {}
  
  egl::Error WindowSurfaceWgpuMetalLayer::initialize(const egl::Display *display)
  {
      // TODO: Use the same Metal device as wgpu
      mMetalDevice = MTLCreateSystemDefaultDevice();
  
      return WindowSurfaceWgpu::initialize(display);
  }
  
  void WindowSurfaceWgpuMetalLayer::destroy(const egl::Display *display)
  {
      WindowSurfaceWgpu::destroy(display);
      [mMetalDevice release];
      if (mMetalLayer)
      {
          [mMetalLayer removeFromSuperlayer];
          [mMetalLayer release];
      }
  }
  
  angle::Result WindowSurfaceWgpuMetalLayer::createWgpuSurface(const egl::Display *display,
                                                               webgpu::SurfaceHandle *outSurface)
      API_AVAILABLE(macosx(10.11))
  {
      CALayer *layer = reinterpret_cast<CALayer *>(getNativeWindow());
  
      mMetalLayer        = [[CAMetalLayer alloc] init];
      mMetalLayer.frame  = CGRectMake(0, 0, layer.frame.size.width, layer.frame.size.height);
      mMetalLayer.device = mMetalDevice;
      mMetalLayer.drawableSize =
          CGSizeMake(mMetalLayer.bounds.size.width * mMetalLayer.contentsScale,
                     mMetalLayer.bounds.size.height * mMetalLayer.contentsScale);
      mMetalLayer.framebufferOnly  = NO;
  #if TARGET_OS_OSX || TARGET_OS_MACCATALYST
      mMetalLayer.autoresizingMask = kCALayerWidthSizable | kCALayerHeightSizable;
  #endif
      mMetalLayer.contentsScale    = layer.contentsScale;
  
      [layer addSublayer:mMetalLayer];
  
      WGPUSurfaceSourceMetalLayer metalLayerDesc = WGPU_SURFACE_SOURCE_METAL_LAYER_INIT;
      metalLayerDesc.layer = mMetalLayer;
  
      WGPUSurfaceDescriptor surfaceDesc = WGPU_SURFACE_DESCRIPTOR_INIT;
      surfaceDesc.nextInChain           = &metalLayerDesc.chain;
  
      DisplayWgpu *displayWgpu = webgpu::GetImpl(display);
      const DawnProcTable *wgpu       = displayWgpu->getProcs();
      webgpu::InstanceHandle instance = displayWgpu->getInstance();
  
      webgpu::SurfaceHandle surface = webgpu::SurfaceHandle::Acquire(
          wgpu, wgpu->instanceCreateSurface(instance.get(), &surfaceDesc));
      *outSurface           = surface;
  
      return angle::Result::Continue;
  }
  
  angle::Result WindowSurfaceWgpuMetalLayer::getCurrentWindowSize(const egl::Display *display,
                                                                  gl::Extents *outSize)
      API_AVAILABLE(macosx(10.11))
  {
      ASSERT(mMetalLayer != nullptr);
  
      mMetalLayer.drawableSize =
          CGSizeMake(mMetalLayer.bounds.size.width * mMetalLayer.contentsScale,
                     mMetalLayer.bounds.size.height * mMetalLayer.contentsScale);
      *outSize = gl::Extents(static_cast<int>(mMetalLayer.drawableSize.width),
                             static_cast<int>(mMetalLayer.drawableSize.height), 1);
  
      return angle::Result::Continue;
  }
  
  WindowSurfaceWgpu *CreateWgpuWindowSurface(const egl::SurfaceState &surfaceState,
                                             EGLNativeWindowType window)
  {
      return new WindowSurfaceWgpuMetalLayer(surfaceState, window);
  }
  }  // namespace rx
  

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