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/*
* 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 <http://www.gnu.org/licenses/>
*
* Authored by: Jay Taoko <jaytaoko@inalogic.com>
*
*/
#ifndef IOPENGLVOLUMETEXTURE_H
#define IOPENGLVOLUMETEXTURE_H
namespace nux
{
class IOpenGLBaseTexture;
class IOpenGLVolumeTexture: public IOpenGLBaseTexture
{
NUX_DECLARE_OBJECT_TYPE(IOpenGLVolumeTexture, IOpenGLBaseTexture);
public:
virtual ~IOpenGLVolumeTexture();
int GetVolumeLevel(
int Level,
IOpenGLVolume **ppVolumeLevel
);
int LockRect(
int Slice,
int Level,
SURFACE_LOCKED_RECT *pLockedRect,
const SURFACE_RECT *pRect);
int UnlockRect(
int Slice,
int Level
);
int LockBox(
int Level,
VOLUME_LOCKED_BOX *pLockedVolume,
const VOLUME_BOX *pBox);
int UnlockBox(
int Level
);
int GetLevelDepth(int MipLevel) const
{
return ImageSurface::GetLevelDim(_PixelFormat, _Depth, MipLevel);
}
int GetLevelDesc(
int Level,
VOLUME_DESC *pDesc
)
{
nuxAssert(Level >= 0 );
nuxAssert(Level < _NumMipLevel);
if ((Level < 0) || (Level > _NumMipLevel))
{
pDesc->Width = 0;
pDesc->Height = 0;
pDesc->Depth = 0;
pDesc->PixelFormat = BITFMT_UNKNOWN;
pDesc->Type = _ResourceType;
}
else
{
pDesc->Width = Max<int> (1, _Width >> Level);
pDesc->Height = Max<int> (1, _Height >> Level);
pDesc->Depth = _Depth;
pDesc->PixelFormat = _PixelFormat;
pDesc->Type = _ResourceType;
}
return OGL_OK;
}
private:
IOpenGLVolumeTexture(
int Width
, int Height
, int Depth
, int Levels
, BitmapFormat PixelFormat);
std::vector< ObjectPtr<IOpenGLSurface> > *_VolumeSurfaceArray;
std::vector< ObjectPtr<IOpenGLVolume> > _VolumeArray;
friend class GpuDevice;
friend class IOpenGLSurface;
};
}
#endif // IOPENGLVOLUMETEXTURE_H
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