kc3-lang/angle/src/libANGLE/renderer/wgpu/wgpu_helpers.cpp

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• Hash : 6eaaad7c
  Author :
  Date : 2024-02-27T21:24:59
  

  Create ImageHelper.
  
  This CL adds a helper class ImageHelper, which acts
  as a wrapper on webgpu textures that will be used by
  TextureWgpu.
  
  Bug: angleproject:8547
  Change-Id: Ia796534c9d3ff0dd24797cc483677cfcbedb1f8c
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5317864
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Commit-Queue: Liza Burakova <liza@chromium.org>
  

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• src/libANGLE/renderer/wgpu/wgpu_helpers.cpp

• //
  // 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.
  //
  
  #include "libANGLE/renderer/wgpu/wgpu_helpers.h"
  
  namespace webgpu
  {
  ImageHelper::ImageHelper() {}
  
  ImageHelper::~ImageHelper() {}
  
  angle::Result ImageHelper::initImage(wgpu::TextureUsage usage,
                                       wgpu::TextureDimension dimension,
                                       wgpu::Extent3D size,
                                       wgpu::TextureFormat format,
                                       std::uint32_t mipLevelCount,
                                       std::uint32_t sampleCount,
                                       std::size_t viewFormatCount)
  {
  
      mUsage           = usage;
      mDimension       = dimension;
      mSize            = size;
      mFormat          = format;
      mMipLevelCount   = mipLevelCount;
      mSampleCount     = sampleCount;
      mViewFormatCount = viewFormatCount;
  
      return angle::Result::Continue;
  }
  
  void ImageHelper::flushStagedUpdates(wgpu::Device device)
  {
      wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
      wgpu::ImageCopyTexture dst;
      for (const QueuedDataUpload &src : mBufferQueue)
      {
          if (src.targetLevel < mFirstAllocatedLevel ||
              src.targetLevel >= (mFirstAllocatedLevel + mMipLevelCount))
          {
              continue;
          }
          LevelIndex targetLevelWgpu = toWgpuLevel(src.targetLevel);
          dst.texture                = mTexture;
          dst.mipLevel               = targetLevelWgpu.get();
          encoder.CopyBufferToTexture(&src.copyBuffer, &dst, &mSize);
      }
  }
  
  LevelIndex ImageHelper::toWgpuLevel(gl::LevelIndex levelIndexGl) const
  {
      return gl_wgpu::getLevelIndex(levelIndexGl, mFirstAllocatedLevel);
  }
  
  gl::LevelIndex ImageHelper::toGlLevel(LevelIndex levelIndexWgpu) const
  {
      return wgpu_gl::getLevelIndex(levelIndexWgpu, mFirstAllocatedLevel);
  }
  }  // namespace webgpu
  
  namespace wgpu_gl
  {
  gl::LevelIndex getLevelIndex(webgpu::LevelIndex levelWgpu, gl::LevelIndex baseLevel)
  {
      return gl::LevelIndex(levelWgpu.get() + baseLevel.get());
  }
  }  // namespace wgpu_gl
  
  namespace gl_wgpu
  {
  webgpu::LevelIndex getLevelIndex(gl::LevelIndex levelGl, gl::LevelIndex baseLevel)
  {
      ASSERT(baseLevel <= levelGl);
      return webgpu::LevelIndex(levelGl.get() - baseLevel.get());
  }
  }  // namespace gl_wgpu
  

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