kc3-lang/angle/src/libGLESv2/renderer/d3d/d3d9/Query9.cpp

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• Hash : 5aad9673
  Author :
  Date : 2014-09-08T11:10:42
  

  Update Queries to return Error objects instead of calling gl::error.
  
  BUG=angle:520
  
  Change-Id: If8f2bb1c4de7b9cc30861a06aab1d89c97305b26
  Reviewed-on: https://chromium-review.googlesource.com/216699
  Reviewed-by: Shannon Woods <shannonwoods@chromium.org>
  Tested-by: Geoff Lang <geofflang@chromium.org>
  

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• src/libGLESv2/renderer/d3d/d3d9/Query9.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.
  //
  
  // Query9.cpp: Defines the rx::Query9 class which implements rx::QueryImpl.
  
  #include "libGLESv2/renderer/d3d/d3d9/Query9.h"
  #include "libGLESv2/renderer/d3d/d3d9/renderer9_utils.h"
  #include "libGLESv2/renderer/d3d/d3d9/Renderer9.h"
  #include "libGLESv2/main.h"
  
  #include <GLES2/gl2ext.h>
  
  namespace rx
  {
  Query9::Query9(rx::Renderer9 *renderer, GLenum type)
      : QueryImpl(type),
        mResult(GL_FALSE),
        mQueryFinished(false),
        mRenderer(renderer),
        mQuery(NULL)
  {
  }
  
  Query9::~Query9()
  {
      SafeRelease(mQuery);
  }
  
  gl::Error Query9::begin()
  {
      if (mQuery == NULL)
      {
          HRESULT result = mRenderer->getDevice()->CreateQuery(D3DQUERYTYPE_OCCLUSION, &mQuery);
          if (FAILED(result))
          {
              return gl::Error(GL_OUT_OF_MEMORY, "Internal query creation failed, result: 0x%X.", result);
          }
      }
  
      HRESULT result = mQuery->Issue(D3DISSUE_BEGIN);
      ASSERT(SUCCEEDED(result));
      if (FAILED(result))
      {
          return gl::Error(GL_OUT_OF_MEMORY, "Failed to begin internal query, result: 0x%X.", result);
      }
  
      return gl::Error(GL_NO_ERROR);
  }
  
  gl::Error Query9::end()
  {
      ASSERT(mQuery);
  
      HRESULT result = mQuery->Issue(D3DISSUE_END);
      ASSERT(SUCCEEDED(result));
      if (FAILED(result))
      {
          return gl::Error(GL_OUT_OF_MEMORY, "Failed to end internal query, result: 0x%X.", result);
      }
  
      mQueryFinished = false;
      mResult = GL_FALSE;
  
      return gl::Error(GL_NO_ERROR);
  }
  
  gl::Error Query9::getResult(GLuint *params)
  {
      while (!mQueryFinished)
      {
          gl::Error error = testQuery();
          if (error.isError())
          {
              return error;
          }
  
          if (!mQueryFinished)
          {
              Sleep(0);
          }
      }
  
      ASSERT(mQueryFinished);
      *params = mResult;
  
      return gl::Error(GL_NO_ERROR);
  }
  
  gl::Error Query9::isResultAvailable(GLuint *available)
  {
      gl::Error error = testQuery();
      if (error.isError())
      {
          return error;
      }
  
      *available = (mQueryFinished ? GL_TRUE : GL_FALSE);
  
      return gl::Error(GL_NO_ERROR);
  }
  
  gl::Error Query9::testQuery()
  {
      if (!mQueryFinished)
      {
          ASSERT(mQuery);
  
          DWORD numPixels = 0;
  
          HRESULT hres = mQuery->GetData(&numPixels, sizeof(DWORD), D3DGETDATA_FLUSH);
          if (hres == S_OK)
          {
              mQueryFinished = true;
  
              switch (getType())
              {
                case GL_ANY_SAMPLES_PASSED_EXT:
                case GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT:
                  mResult = (numPixels > 0) ? GL_TRUE : GL_FALSE;
                  break;
  
                default:
                  UNREACHABLE();
                  break;
              }
          }
          else if (d3d9::isDeviceLostError(hres))
          {
              mRenderer->notifyDeviceLost();
              return gl::Error(GL_OUT_OF_MEMORY, "Failed to test get query result, device is lost.");
          }
          else if (mRenderer->testDeviceLost(true))
          {
              return gl::Error(GL_OUT_OF_MEMORY, "Failed to test get query result, device is lost.");
          }
      }
  
      return gl::Error(GL_NO_ERROR);
  }
  
  }
  

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