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

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• Hash : 84e54d88
  Author :
  Date : 2024-07-22T14:39:22
  

  WebGPU: Add command buffers and renderpass management
  
  Add a CommandBuffer class to serialize and replay WebGPU commands. Only
  Draw and SetPipeline are implemented in this patch.
  
  Manage render pass begin and end events due to framebuffer changes and
  swapping.
  
  Handle the color mask dirty bits so that a non-zero color mask will be
  used.
  
  All togther, this is enough to draw a triangle using a hard-coded
  shader without inputs.
  
  Bug: angleproject:0
  Change-Id: I0fbf0296563c02c7f0774ad4197b83f4c93c22bb
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5731594
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Liza Burakova <liza@chromium.org>
  Commit-Queue: Geoff Lang <geofflang@chromium.org>
  

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• src/libANGLE/renderer/wgpu/wgpu_utils.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_utils.h"
  
  #include "libANGLE/renderer/renderer_utils.h"
  #include "libANGLE/renderer/wgpu/ContextWgpu.h"
  #include "libANGLE/renderer/wgpu/DisplayWgpu.h"
  
  namespace rx
  {
  
  namespace webgpu
  {
  DisplayWgpu *GetDisplay(const gl::Context *context)
  {
      ContextWgpu *contextWgpu = GetImpl(context);
      return contextWgpu->getDisplay();
  }
  
  wgpu::Device GetDevice(const gl::Context *context)
  {
      DisplayWgpu *display = GetDisplay(context);
      return display->getDevice();
  }
  
  wgpu::Instance GetInstance(const gl::Context *context)
  {
      DisplayWgpu *display = GetDisplay(context);
      return display->getInstance();
  }
  
  wgpu::RenderPassColorAttachment CreateNewClearColorAttachment(wgpu::Color clearValue,
                                                                uint32_t depthSlice,
                                                                wgpu::TextureView textureView)
  {
      wgpu::RenderPassColorAttachment colorAttachment;
      colorAttachment.view       = textureView;
      colorAttachment.depthSlice = depthSlice;
      colorAttachment.loadOp     = wgpu::LoadOp::Clear;
      colorAttachment.storeOp    = wgpu::StoreOp::Store;
      colorAttachment.clearValue = clearValue;
  
      return colorAttachment;
  }
  
  bool IsWgpuError(wgpu::WaitStatus waitStatus)
  {
      return waitStatus != wgpu::WaitStatus::Success;
  }
  
  bool IsWgpuError(WGPUBufferMapAsyncStatus mapBufferStatus)
  {
      return mapBufferStatus != WGPUBufferMapAsyncStatus_Success;
  }
  
  ClearValuesArray::ClearValuesArray() : mValues{}, mEnabled{} {}
  ClearValuesArray::~ClearValuesArray() = default;
  
  ClearValuesArray::ClearValuesArray(const ClearValuesArray &other)          = default;
  ClearValuesArray &ClearValuesArray::operator=(const ClearValuesArray &rhs) = default;
  
  void ClearValuesArray::store(uint32_t index, ClearValues clearValues)
  {
      mValues[index] = clearValues;
      mEnabled.set(index);
  }
  
  gl::DrawBufferMask ClearValuesArray::getColorMask() const
  {
      return gl::DrawBufferMask(mEnabled.bits() & kUnpackedColorBuffersMask);
  }
  
  void EnsureCapsInitialized(const wgpu::Device &device, gl::Caps *nativeCaps)
  {
      wgpu::SupportedLimits limitsWgpu = {};
      device.GetLimits(&limitsWgpu);
  
      nativeCaps->maxElementIndex       = std::numeric_limits<GLuint>::max() - 1;
      nativeCaps->max3DTextureSize      = rx::LimitToInt(limitsWgpu.limits.maxTextureDimension3D);
      nativeCaps->max2DTextureSize      = rx::LimitToInt(limitsWgpu.limits.maxTextureDimension2D);
      nativeCaps->maxArrayTextureLayers = rx::LimitToInt(limitsWgpu.limits.maxTextureArrayLayers);
      nativeCaps->maxCubeMapTextureSize = rx::LimitToInt(limitsWgpu.limits.maxTextureDimension2D);
      nativeCaps->maxRenderbufferSize   = rx::LimitToInt(limitsWgpu.limits.maxTextureDimension2D);
  
      nativeCaps->maxDrawBuffers       = rx::LimitToInt(limitsWgpu.limits.maxColorAttachments);
      nativeCaps->maxFramebufferWidth  = rx::LimitToInt(limitsWgpu.limits.maxTextureDimension2D);
      nativeCaps->maxFramebufferHeight = rx::LimitToInt(limitsWgpu.limits.maxTextureDimension2D);
      nativeCaps->maxColorAttachments  = rx::LimitToInt(limitsWgpu.limits.maxColorAttachments);
  
      nativeCaps->maxVertexAttribStride =
          rx::LimitToInt(limitsWgpu.limits.maxVertexBufferArrayStride);
  
      nativeCaps->maxVertexAttributes = rx::LimitToInt(limitsWgpu.limits.maxVertexAttributes);
  
      nativeCaps->maxTextureBufferSize = rx::LimitToInt(limitsWgpu.limits.maxBufferSize);
  }
  
  bool IsStripPrimitiveTopology(wgpu::PrimitiveTopology topology)
  {
      switch (topology)
      {
          case wgpu::PrimitiveTopology::LineStrip:
          case wgpu::PrimitiveTopology::TriangleStrip:
              return true;
  
          default:
              return false;
      }
  }
  
  }  // namespace webgpu
  
  namespace wgpu_gl
  {
  gl::LevelIndex getLevelIndex(webgpu::LevelIndex levelWgpu, gl::LevelIndex baseLevel)
  {
      return gl::LevelIndex(levelWgpu.get() + baseLevel.get());
  }
  
  gl::Extents getExtents(wgpu::Extent3D wgpuExtent)
  {
      gl::Extents glExtent;
      glExtent.width  = wgpuExtent.width;
      glExtent.height = wgpuExtent.height;
      glExtent.depth  = wgpuExtent.depthOrArrayLayers;
      return glExtent;
  }
  }  // 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());
  }
  
  wgpu::Extent3D getExtent3D(const gl::Extents &glExtent)
  {
      wgpu::Extent3D wgpuExtent;
      wgpuExtent.width              = glExtent.width;
      wgpuExtent.height             = glExtent.height;
      wgpuExtent.depthOrArrayLayers = glExtent.depth;
      return wgpuExtent;
  }
  
  wgpu::PrimitiveTopology GetPrimitiveTopology(gl::PrimitiveMode mode)
  {
      switch (mode)
      {
          case gl::PrimitiveMode::Points:
              return wgpu::PrimitiveTopology::PointList;
          case gl::PrimitiveMode::Lines:
              return wgpu::PrimitiveTopology::LineList;
          case gl::PrimitiveMode::LineLoop:
              UNIMPLEMENTED();
              return wgpu::PrimitiveTopology::LineList;  // Emulated
          case gl::PrimitiveMode::LineStrip:
              return wgpu::PrimitiveTopology::LineStrip;
          case gl::PrimitiveMode::Triangles:
              return wgpu::PrimitiveTopology::TriangleList;
          case gl::PrimitiveMode::TriangleStrip:
              return wgpu::PrimitiveTopology::TriangleStrip;
          case gl::PrimitiveMode::TriangleFan:
              UNIMPLEMENTED();
              return wgpu::PrimitiveTopology::TriangleList;  // Emulated
          default:
              UNREACHABLE();
              return wgpu::PrimitiveTopology::Undefined;
      }
  }
  
  wgpu::IndexFormat GetIndexFormat(gl::DrawElementsType drawElementsType)
  {
      switch (drawElementsType)
      {
          case gl::DrawElementsType::UnsignedByte:
              UNIMPLEMENTED();
              return wgpu::IndexFormat::Uint16;  // Emulated
          case gl::DrawElementsType::UnsignedShort:
              return wgpu::IndexFormat::Uint16;
          case gl::DrawElementsType::UnsignedInt:
              return wgpu::IndexFormat::Uint32;
  
          default:
              UNREACHABLE();
              return wgpu::IndexFormat::Undefined;
      }
  }
  
  wgpu::FrontFace GetFrontFace(GLenum frontFace)
  {
      switch (frontFace)
      {
          case GL_CW:
              return wgpu::FrontFace::CW;
          case GL_CCW:
              return wgpu::FrontFace::CCW;
  
          default:
              UNREACHABLE();
              return wgpu::FrontFace::Undefined;
      }
  }
  
  wgpu::CullMode GetCullMode(gl::CullFaceMode mode, bool cullFaceEnabled)
  {
      if (!cullFaceEnabled)
      {
          return wgpu::CullMode::None;
      }
  
      switch (mode)
      {
          case gl::CullFaceMode::Front:
              return wgpu::CullMode::Front;
          case gl::CullFaceMode::Back:
              return wgpu::CullMode::Back;
          case gl::CullFaceMode::FrontAndBack:
              UNIMPLEMENTED();
              return wgpu::CullMode::None;  // Emulated
          default:
              UNREACHABLE();
              return wgpu::CullMode::None;
      }
  }
  
  wgpu::ColorWriteMask GetColorWriteMask(bool r, bool g, bool b, bool a)
  {
      return (r ? wgpu::ColorWriteMask::Red : wgpu::ColorWriteMask::None) |
             (g ? wgpu::ColorWriteMask::Green : wgpu::ColorWriteMask::None) |
             (b ? wgpu::ColorWriteMask::Blue : wgpu::ColorWriteMask::None) |
             (a ? wgpu::ColorWriteMask::Alpha : wgpu::ColorWriteMask::None);
  }
  
  wgpu::TextureDimension getWgpuTextureDimension(gl::TextureType glTextureType)
  {
      wgpu::TextureDimension dimension = {};
      switch (glTextureType)
      {
          case gl::TextureType::_2D:
          case gl::TextureType::_2DMultisample:
          case gl::TextureType::Rectangle:
          case gl::TextureType::External:
          case gl::TextureType::Buffer:
              dimension = wgpu::TextureDimension::e2D;
              break;
          case gl::TextureType::_2DArray:
          case gl::TextureType::_2DMultisampleArray:
          case gl::TextureType::_3D:
          case gl::TextureType::CubeMap:
          case gl::TextureType::CubeMapArray:
          case gl::TextureType::VideoImage:
              dimension = wgpu::TextureDimension::e3D;
              break;
          default:
              break;
      }
      return dimension;
  }
  }  // namespace gl_wgpu
  }  // namespace rx
  

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