/*
* Copyright 2010 Inalogic® Inc.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License, as
* published by the Free Software Foundation; either version 2.1 or 3.0
* of the License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the applicable version of the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of both the GNU Lesser General Public
* License along with this program. If not, see
*
* Authored by: Jay Taoko
*
*/
#ifndef IOPENGLQUERY_H
#define IOPENGLQUERY_H
namespace nux
{
class IOpenGLResource;
class IOpenGLQuery: public IOpenGLResource
{
NUX_DECLARE_OBJECT_TYPE (IOpenGLQuery, IOpenGLResource);
public:
int GetData (
int *pData,
t_u32 Size,
t_u32 GetDataFlags
);
t_u32 GetDataSize();
void GetDevice (
GpuDevice **ppDevice
);
QUERY_TYPE GetType();
void Issue (
t_u32 IssueFlags
);
// Convenient functions
// Return True is the result is available. That is glGetQueryObjectuivARB won't block
// if called with GL_QUERY_RESULT_ARB.
bool IsResultAvailable();
// Return the result of the query. Make sure IsResultAvailable returned TRUE before calling this function.
// If you fail to do that, GetResult will block before returning.
unsigned int GetResult();
IOpenGLQuery (QUERY_TYPE Type);
virtual ~IOpenGLQuery() {};
private:
QUERY_TYPE _Type;
bool _QueryStarted;
friend class GpuDevice;
static t_u32 _CurrentlyActiveQuery;
};
}
#endif // IOPENGLQUERY_H