kc3-lang/angle/src/libANGLE/renderer/d3d/d3d11/ExternalImageSiblingImpl11.cpp

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• Hash : 137271ff
  Author :
  Date : 2021-01-13T14:34:12
  

  Support specifying array slice for D3D11 texture EGLImage
  
  Client can specify array slice for creating the SRV/RTV with
  EGL_D3D11_TEXTURE_ARRAY_SLICE_ANGLE.
  
  Test: D3DTextureTest.TextureArrayImage*
  Bug: angleproject:5538, chromium:1116101
  Change-Id: I81cb2823df2145f1d05ad1526b0e36d6a0724d5e
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2628609
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Commit-Queue: Sunny Sachanandani <sunnyps@chromium.org>
  

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• src/libANGLE/renderer/d3d/d3d11/ExternalImageSiblingImpl11.cpp

• //
  // Copyright 2019 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/d3d/d3d11/ExternalImageSiblingImpl11.h"
  
  #include "libANGLE/Context.h"
  #include "libANGLE/Error.h"
  #include "libANGLE/angletypes.h"
  #include "libANGLE/formatutils.h"
  #include "libANGLE/renderer/d3d/d3d11/Context11.h"
  #include "libANGLE/renderer/d3d/d3d11/RenderTarget11.h"
  #include "libANGLE/renderer/d3d/d3d11/Renderer11.h"
  #include "libANGLE/renderer/d3d/d3d11/texture_format_table.h"
  
  namespace rx
  {
  ExternalImageSiblingImpl11::ExternalImageSiblingImpl11(Renderer11 *renderer,
                                                         EGLClientBuffer buffer,
                                                         const egl::AttributeMap &attribs)
      : mRenderer(renderer), mBuffer(buffer), mAttribs(attribs)
  {}
  
  ExternalImageSiblingImpl11::~ExternalImageSiblingImpl11() {}
  
  egl::Error ExternalImageSiblingImpl11::initialize(const egl::Display *display)
  {
      const angle::Format *angleFormat = nullptr;
      ANGLE_TRY(mRenderer->getD3DTextureInfo(nullptr, static_cast<IUnknown *>(mBuffer), mAttribs,
                                             &mWidth, &mHeight, &mSamples, &mFormat, &angleFormat,
                                             &mArraySlice));
      ID3D11Texture2D *texture =
          d3d11::DynamicCastComObject<ID3D11Texture2D>(static_cast<IUnknown *>(mBuffer));
      ASSERT(texture != nullptr);
      // TextureHelper11 will release texture on destruction.
      mTexture.set(texture, d3d11::Format::Get(angleFormat->glInternalFormat,
                                               mRenderer->getRenderer11DeviceCaps()));
      D3D11_TEXTURE2D_DESC textureDesc = {};
      mTexture.getDesc(&textureDesc);
  
      IDXGIResource *resource = d3d11::DynamicCastComObject<IDXGIResource>(mTexture.get());
      ASSERT(resource != nullptr);
      DXGI_USAGE resourceUsage = 0;
      resource->GetUsage(&resourceUsage);
      SafeRelease(resource);
  
      mIsRenderable = (textureDesc.BindFlags & D3D11_BIND_RENDER_TARGET) &&
                      (resourceUsage & DXGI_USAGE_RENDER_TARGET_OUTPUT) &&
                      !(resourceUsage & DXGI_USAGE_READ_ONLY);
  
      mIsTexturable = (textureDesc.BindFlags & D3D11_BIND_SHADER_RESOURCE) &&
                      (resourceUsage & DXGI_USAGE_SHADER_INPUT);
  
      mIsTextureArray = (textureDesc.ArraySize > 1);
  
      mYUV = (textureDesc.Format == DXGI_FORMAT_NV12 || textureDesc.Format == DXGI_FORMAT_P010 ||
              textureDesc.Format == DXGI_FORMAT_P016);
  
      return egl::NoError();
  }
  
  gl::Format ExternalImageSiblingImpl11::getFormat() const
  {
      return mFormat;
  }
  
  bool ExternalImageSiblingImpl11::isRenderable(const gl::Context *context) const
  {
      return mIsRenderable;
  }
  
  bool ExternalImageSiblingImpl11::isTexturable(const gl::Context *context) const
  {
      return mIsTexturable;
  }
  
  bool ExternalImageSiblingImpl11::isYUV() const
  {
      return mYUV;
  }
  
  gl::Extents ExternalImageSiblingImpl11::getSize() const
  {
      return gl::Extents(mWidth, mHeight, 1);
  }
  
  size_t ExternalImageSiblingImpl11::getSamples() const
  {
      return mSamples;
  }
  
  angle::Result ExternalImageSiblingImpl11::getAttachmentRenderTarget(
      const gl::Context *context,
      GLenum binding,
      const gl::ImageIndex &imageIndex,
      GLsizei samples,
      FramebufferAttachmentRenderTarget **rtOut)
  {
      ANGLE_TRY(createRenderTarget(context));
      *rtOut = mRenderTarget.get();
      return angle::Result::Continue;
  }
  
  angle::Result ExternalImageSiblingImpl11::initializeContents(const gl::Context *context,
                                                               const gl::ImageIndex &imageIndex)
  {
      UNREACHABLE();
      return angle::Result::Stop;
  }
  
  angle::Result ExternalImageSiblingImpl11::createRenderTarget(const gl::Context *context)
  {
      if (mRenderTarget)
          return angle::Result::Continue;
  
      Context11 *context11            = GetImplAs<Context11>(context);
      const d3d11::Format &formatInfo = mTexture.getFormatSet();
  
      d3d11::RenderTargetView rtv;
      if (mIsRenderable)
      {
          D3D11_RENDER_TARGET_VIEW_DESC rtvDesc;
          rtvDesc.Format = formatInfo.rtvFormat;
          if (mIsTextureArray)
          {
              if (mSamples == 0)
              {
                  rtvDesc.ViewDimension                  = D3D11_RTV_DIMENSION_TEXTURE2DARRAY;
                  rtvDesc.Texture2DArray.MipSlice        = 0;
                  rtvDesc.Texture2DArray.FirstArraySlice = mArraySlice;
                  rtvDesc.Texture2DArray.ArraySize       = 1;
              }
              else
              {
                  rtvDesc.ViewDimension                    = D3D11_RTV_DIMENSION_TEXTURE2DMSARRAY;
                  rtvDesc.Texture2DMSArray.FirstArraySlice = mArraySlice;
                  rtvDesc.Texture2DMSArray.ArraySize       = 1;
              }
          }
          else
          {
              if (mSamples == 0)
              {
                  rtvDesc.ViewDimension      = D3D11_RTV_DIMENSION_TEXTURE2D;
                  rtvDesc.Texture2D.MipSlice = 0;
              }
              else
              {
                  rtvDesc.ViewDimension = D3D11_RTV_DIMENSION_TEXTURE2DMS;
              }
          }
  
          ANGLE_TRY(mRenderer->allocateResource(context11, rtvDesc, mTexture.get(), &rtv));
          rtv.setDebugName("getAttachmentRenderTarget.RTV");
      }
  
      d3d11::SharedSRV srv;
      if (mIsTexturable)
      {
          D3D11_SHADER_RESOURCE_VIEW_DESC srvDesc;
          srvDesc.Format = formatInfo.srvFormat;
          if (mIsTextureArray)
          {
              if (mSamples == 0)
              {
                  srvDesc.ViewDimension                  = D3D11_SRV_DIMENSION_TEXTURE2DARRAY;
                  srvDesc.Texture2DArray.MostDetailedMip = 0;
                  srvDesc.Texture2DArray.MipLevels       = 1;
                  srvDesc.Texture2DArray.FirstArraySlice = mArraySlice;
                  srvDesc.Texture2DArray.ArraySize       = 1;
              }
              else
              {
                  srvDesc.ViewDimension                  = D3D11_SRV_DIMENSION_TEXTURE2DMSARRAY;
                  srvDesc.Texture2DArray.FirstArraySlice = mArraySlice;
                  srvDesc.Texture2DArray.ArraySize       = 1;
              }
          }
          else
          {
              if (mSamples == 0)
              {
                  srvDesc.ViewDimension             = D3D11_SRV_DIMENSION_TEXTURE2D;
                  srvDesc.Texture2D.MostDetailedMip = 0;
                  srvDesc.Texture2D.MipLevels       = 1;
              }
              else
              {
                  srvDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2DMS;
              }
          }
  
          ANGLE_TRY(mRenderer->allocateResource(context11, srvDesc, mTexture.get(), &srv));
          srv.setDebugName("getAttachmentRenderTarget.SRV");
      }
      d3d11::SharedSRV blitSrv = srv.makeCopy();
  
      mRenderTarget = std::make_unique<TextureRenderTarget11>(
          std::move(rtv), mTexture, std::move(srv), std::move(blitSrv), mFormat.info->internalFormat,
          formatInfo, mWidth, mHeight, 1, mSamples);
      return angle::Result::Continue;
  }
  
  }  // namespace rx
  

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