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

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• Hash : ea228635
  Author :
  Date : 2013-07-30T15:17:12
  

  Use SafeRelease and SafeDelete to make sure released objects are NULL and will cause proper errors if referenced again.
  
  TRAC #23617
  
  Signed-off-by: Nicolas Capens
  Signed-off-by: Shannon Woods
  Author: Geoff Lang
  

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• src/libGLESv2/renderer/Query9.cpp

• #include "precompiled.h"
  //
  // 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/Query9.h"
  #include "libGLESv2/main.h"
  #include "libGLESv2/renderer/renderer9_utils.h"
  #include "libGLESv2/renderer/Renderer9.h"
  
  namespace rx
  {
  
  Query9::Query9(rx::Renderer9 *renderer, GLenum type) : QueryImpl(type)
  {
      mRenderer = renderer;
      mQuery = NULL;
  }
  
  Query9::~Query9()
  {
      SafeRelease(mQuery);
  }
  
  void Query9::begin()
  {
      if (mQuery == NULL)
      {
          if (FAILED(mRenderer->getDevice()->CreateQuery(D3DQUERYTYPE_OCCLUSION, &mQuery)))
          {
              return gl::error(GL_OUT_OF_MEMORY);
          }
      }
  
      HRESULT result = mQuery->Issue(D3DISSUE_BEGIN);
      ASSERT(SUCCEEDED(result));
  }
  
  void Query9::end()
  {
      if (mQuery == NULL)
      {
          return gl::error(GL_INVALID_OPERATION);
      }
  
      HRESULT result = mQuery->Issue(D3DISSUE_END);
      ASSERT(SUCCEEDED(result));
  
      mStatus = GL_FALSE;
      mResult = GL_FALSE;
  }
  
  GLuint Query9::getResult()
  {
      if (mQuery != NULL)
      {
          while (!testQuery())
          {
              Sleep(0);
              // explicitly check for device loss
              // some drivers seem to return S_FALSE even if the device is lost
              // instead of D3DERR_DEVICELOST like they should
              if (mRenderer->testDeviceLost(true))
              {
                  return gl::error(GL_OUT_OF_MEMORY, 0);
              }
          }
      }
  
      return mResult;
  }
  
  GLboolean Query9::isResultAvailable()
  {
      if (mQuery != NULL)
      {
          testQuery();
      }
  
      return mStatus;
  }
  
  GLboolean Query9::testQuery()
  {
      if (mQuery != NULL && mStatus != GL_TRUE)
      {
          DWORD numPixels = 0;
  
          HRESULT hres = mQuery->GetData(&numPixels, sizeof(DWORD), D3DGETDATA_FLUSH);
          if (hres == S_OK)
          {
              mStatus =  GL_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:
                  ASSERT(false);
              }
          }
          else if (d3d9::isDeviceLostError(hres))
          {
              mRenderer->notifyDeviceLost();
              return gl::error(GL_OUT_OF_MEMORY, GL_TRUE);
          }
  
          return mStatus;
      }
  
      return GL_TRUE; // prevent blocking when query is null
  }
  
  }
  

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