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/*=========================================================================
Program: Visualization Toolkit
Module: vtkCompressCompositer.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/**
* @class vtkCompressCompositer
* @brief Implements compressed tree based compositing.
*
*
* vtkCompressCompositer operates in multiple processes. Each compositer has
* a render window. They use vtkMultiProcessController to communicate
* the color and depth buffer to process 0's render window.
* It will not handle transparency. Compositing is run length encoding
* of background pixels.
*
* SECTION See Also
* vtkCompositeManager.
*/
#ifndef vtkCompressCompositer_h
#define vtkCompressCompositer_h
#include "vtkCompositer.h"
#include "vtkRenderingParallelModule.h" // For export macro
VTK_ABI_NAMESPACE_BEGIN
class vtkTimerLog;
class vtkDataArray;
class vtkFloatArray;
class VTKRENDERINGPARALLEL_EXPORT vtkCompressCompositer : public vtkCompositer
{
public:
static vtkCompressCompositer* New();
vtkTypeMacro(vtkCompressCompositer, vtkCompositer);
void PrintSelf(ostream& os, vtkIndent indent) override;
void CompositeBuffer(
vtkDataArray* pBuf, vtkFloatArray* zBuf, vtkDataArray* pTmp, vtkFloatArray* zTmp) override;
/**
* I am granting access to these methods and making them static
* So I can create a TileDisplayCompositer which uses compression.
*/
static void Compress(
vtkFloatArray* zIn, vtkDataArray* pIn, vtkFloatArray* zOut, vtkDataArray* pOut);
static void Uncompress(
vtkFloatArray* zIn, vtkDataArray* pIn, vtkFloatArray* zOut, vtkDataArray* pOut, int lengthOut);
static void CompositeImagePair(vtkFloatArray* localZ, vtkDataArray* localP,
vtkFloatArray* remoteZ, vtkDataArray* remoteP, vtkFloatArray* outZ, vtkDataArray* outP);
protected:
vtkCompressCompositer();
~vtkCompressCompositer() override;
vtkDataArray* InternalPData;
vtkFloatArray* InternalZData;
vtkTimerLog* Timer;
private:
vtkCompressCompositer(const vtkCompressCompositer&) = delete;
void operator=(const vtkCompressCompositer&) = delete;
};
VTK_ABI_NAMESPACE_END
#endif
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