121 lines
1.9 KiB
C++
121 lines
1.9 KiB
C++
// Copyright (C) 2002-2007 Nikolaus Gebhardt / Thomas Alten
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in irrlicht.h
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#include "IrrCompileConfig.h"
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#include "SoftwareDriver2_compile_config.h"
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#include "CDepthBuffer.h"
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#ifdef _IRR_COMPILE_WITH_BURNINGSVIDEO_
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namespace irr
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{
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namespace video
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{
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//! constructor
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CDepthBuffer::CDepthBuffer(const core::dimension2d<s32>& size)
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: Buffer(0), Size(0,0)
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{
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#ifdef _DEBUG
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setDebugName("CDepthBuffer");
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#endif
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setSize(size);
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}
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//! destructor
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CDepthBuffer::~CDepthBuffer()
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{
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if (Buffer)
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delete [] Buffer;
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}
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//! clears the zbuffer
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void CDepthBuffer::clear()
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{
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#ifdef SOFTWARE_DRIVER_2_USE_WBUFFER
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f32 zMax = 0.f;
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#else
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f32 zMax = 1.f;
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#endif
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u32 zMaxValue;
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zMaxValue = *(u32*) &zMax;
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memset32 ( Buffer, zMaxValue, TotalSize );
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}
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//! sets the new size of the zbuffer
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void CDepthBuffer::setSize(const core::dimension2d<s32>& size)
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{
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if (size == Size)
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return;
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Size = size;
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if (Buffer)
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delete [] Buffer;
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TotalSize = size.Width * size.Height * sizeof ( fp24 );
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Buffer = new u8[TotalSize];
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}
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//! returns the size of the zbuffer
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const core::dimension2d<s32>& CDepthBuffer::getSize()
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{
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return Size;
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}
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//! locks the zbuffer
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fp24* CDepthBuffer::lock()
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{
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return (fp24*) Buffer;
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}
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//! unlocks the zbuffer
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void CDepthBuffer::unlock()
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{
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}
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} // end namespace video
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} // end namespace irr
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#endif // _IRR_COMPILE_WITH_BURNINGSVIDEO_
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namespace irr
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{
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namespace video
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{
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//! creates a ZBuffer
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IDepthBuffer* createDepthBuffer(const core::dimension2d<s32>& size)
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{
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#ifdef _IRR_COMPILE_WITH_BURNINGSVIDEO_
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return new CDepthBuffer(size);
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#else
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return 0;
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#endif // _IRR_COMPILE_WITH_BURNINGSVIDEO_
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}
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} // end namespace video
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} // end namespace irr
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