kc3-lang/angle/src/libANGLE/renderer/d3d/d3d9/Fence9.cpp

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• Author : Geoff Lang
  Date : 2015-04-09 14:43:34
  Hash : b11ad26b
  Message : Implement FenceNVGL. BUG=angleproject:888 Change-Id: Iea6993fe5459cf829f4bd23b0df5e223f22903f5 Reviewed-on: https://chromium-review.googlesource.com/264989 Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>

• src/libANGLE/renderer/d3d/d3d9/Fence9.cpp

• //
  // Copyright (c) 2013 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.
  //
  
  // Fence9.cpp: Defines the rx::FenceNV9 class.
  
  #include "libANGLE/renderer/d3d/d3d9/Fence9.h"
  #include "libANGLE/renderer/d3d/d3d9/renderer9_utils.h"
  #include "libANGLE/renderer/d3d/d3d9/Renderer9.h"
  
  namespace rx
  {
  
  FenceNV9::FenceNV9(Renderer9 *renderer)
      : FenceNVImpl(),
        mRenderer(renderer),
        mQuery(NULL)
  {
  }
  
  FenceNV9::~FenceNV9()
  {
      SafeRelease(mQuery);
  }
  
  gl::Error FenceNV9::set(GLenum condition)
  {
      if (!mQuery)
      {
          gl::Error error = mRenderer->allocateEventQuery(&mQuery);
          if (error.isError())
          {
              return error;
          }
      }
  
      HRESULT result = mQuery->Issue(D3DISSUE_END);
      if (FAILED(result))
      {
          ASSERT(result == D3DERR_OUTOFVIDEOMEMORY || result == E_OUTOFMEMORY);
          SafeRelease(mQuery);
          return gl::Error(GL_OUT_OF_MEMORY, "Failed to end event query, result: 0x%X.", result);
      }
  
      return gl::Error(GL_NO_ERROR);
  }
  
  gl::Error FenceNV9::test(GLboolean *outFinished)
  {
      return testHelper(true, outFinished);
  }
  
  gl::Error FenceNV9::finish()
  {
      GLboolean finished = GL_FALSE;
      while (finished != GL_TRUE)
      {
          gl::Error error = testHelper(true, &finished);
          if (error.isError())
          {
              return error;
          }
  
          Sleep(0);
      }
  
      return gl::Error(GL_NO_ERROR);
  }
  
  gl::Error FenceNV9::testHelper(bool flushCommandBuffer, GLboolean *outFinished)
  {
      ASSERT(mQuery);
  
      DWORD getDataFlags = (flushCommandBuffer ? D3DGETDATA_FLUSH : 0);
      HRESULT result = mQuery->GetData(NULL, 0, getDataFlags);
  
      if (d3d9::isDeviceLostError(result))
      {
          mRenderer->notifyDeviceLost();
          return gl::Error(GL_OUT_OF_MEMORY, "Device was lost while querying result of an event query.");
      }
      else if (FAILED(result))
      {
          return gl::Error(GL_OUT_OF_MEMORY, "Failed to get query data, result: 0x%X.", result);
      }
  
      ASSERT(result == S_OK || result == S_FALSE);
      *outFinished = ((result == S_OK) ? GL_TRUE : GL_FALSE);
      return gl::Error(GL_NO_ERROR);
  }
  
  }