kc3-lang/angle/src/libGLESv2/renderer/Query11.cpp

Branch : - branch - main - tag -

• Show log

  Commit

• Author : shannon.woods@transgaming.com
  Date : 2013-02-28 23:16:20
  Hash : bdf2d80f
  Message : Add precompiled header support for the libGLESv2 project. TRAC #22518 Signed-off-by: Geoff Lang Signed-off-by: Shannon Woods Author: Jamie Madill git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1938 736b8ea6-26fd-11df-bfd4-992fa37f6226

• src/libGLESv2/renderer/Query11.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.
  //
  
  // Query11.cpp: Defines the rx::Query11 class which implements rx::QueryImpl.
  
  #include "libGLESv2/renderer/Query11.h"
  #include "libGLESv2/renderer/Renderer11.h"
  #include "libGLESv2/main.h"
  
  namespace rx
  {
  
  Query11::Query11(rx::Renderer11 *renderer, GLenum type) : QueryImpl(type)
  {
      mRenderer = renderer;
      mQuery = NULL;
  }
  
  Query11::~Query11()
  {
      if (mQuery)
      {
          mQuery->Release();
          mQuery = NULL;
      }
  }
  
  void Query11::begin()
  {
      if (mQuery == NULL)
      {
          D3D11_QUERY_DESC queryDesc;
          queryDesc.Query = D3D11_QUERY_OCCLUSION;
          queryDesc.MiscFlags = 0;
  
          if (FAILED(mRenderer->getDevice()->CreateQuery(&queryDesc, &mQuery)))
          {
              return gl::error(GL_OUT_OF_MEMORY);
          }
      }
  
      mRenderer->getDeviceContext()->Begin(mQuery);
  }
  
  void Query11::end()
  {
      if (mQuery == NULL)
      {
          return gl::error(GL_INVALID_OPERATION);
      }
  
      mRenderer->getDeviceContext()->End(mQuery);
  
      setStatus(GL_FALSE);
      setResult(GL_FALSE);
  }
  
  GLuint Query11::getResult()
  {
      if (mQuery != NULL)
      {
          while (!testQuery())
          {
              Sleep(0);
              // explicitly check for device loss, some drivers seem to return S_FALSE
              // if the device is lost
              if (mRenderer->testDeviceLost(true))
              {
                  return gl::error(GL_OUT_OF_MEMORY, 0);
              }
          }
      }
  
      return getResult();
  }
  
  GLboolean Query11::isResultAvailable()
  {
      if (mQuery != NULL)
      {
          testQuery();
      }
  
      return getStatus();
  }
  
  GLboolean Query11::testQuery()
  {
      if (mQuery != NULL && getStatus() != GL_TRUE)
      {
          UINT64 numPixels = 0;
          HRESULT result = mRenderer->getDeviceContext()->GetData(mQuery, &numPixels, sizeof(UINT64), 0);
          if (result == S_OK)
          {
              setStatus(GL_TRUE);
  
              switch (getType())
              {
                case GL_ANY_SAMPLES_PASSED_EXT:
                case GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT:
                  setResult((numPixels > 0) ? GL_TRUE : GL_FALSE);
                  break;
                default:
                  UNREACHABLE();
              }
          }
          else if (mRenderer->testDeviceLost(true))
          {
              return gl::error(GL_OUT_OF_MEMORY, GL_TRUE);
          }
  
          return getStatus();
      }
  
      return GL_TRUE; // prevent blocking when query is null
  }
  
  }