mirror of https://github.com/minetest/irrlicht.git
185 lines
3.1 KiB
C++
185 lines
3.1 KiB
C++
// Copyright (C) 2002-2012 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<u32>& 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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{
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delete[] Buffer;
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Buffer = 0;
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}
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}
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//! clears the zbuffer
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void CDepthBuffer::clear(f32 value)
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{
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ieee754 zMaxValue;
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#ifdef SOFTWARE_DRIVER_2_USE_WBUFFER
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zMaxValue.f = 1.f-value;
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#else
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zMaxValue.f = value;
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#endif
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memset32 ( Buffer, zMaxValue.u, TotalSize );
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}
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//! sets the new size of the buffer
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void CDepthBuffer::setSize(const core::dimension2d<u32>& 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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delete [] Buffer;
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Pitch = size.Width * sizeof ( fp24 );
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TotalSize = Pitch * size.Height;
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Buffer = new u8[align_next(TotalSize,16)];
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clear ();
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}
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//! returns the size of the buffer
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const core::dimension2d<u32>& CDepthBuffer::getSize() const
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{
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return Size;
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}
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// -----------------------------------------------------------------
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//! constructor
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CStencilBuffer::CStencilBuffer(const core::dimension2d<u32>& size, unsigned bit)
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: Buffer(0), Size(0,0),Bit(bit)
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{
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#ifdef _DEBUG
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setDebugName("CStencilBuffer");
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#endif
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setSize(size);
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}
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//! destructor
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CStencilBuffer::~CStencilBuffer()
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{
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if (Buffer)
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{
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delete[] Buffer;
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Buffer = 0;
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}
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}
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//! clears the buffer
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void CStencilBuffer::clear(u8 value)
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{
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u32 set = value;
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if (Bit == 8)
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{
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set |= set << 8;
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set |= set << 16;
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}
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memset32 ( Buffer, set, TotalSize );
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}
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//! sets the new size of the buffer
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void CStencilBuffer::setSize(const core::dimension2d<u32>& 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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delete [] Buffer;
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Pitch = size.Width * sizeof (tStencilSample);
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TotalSize = Pitch * size.Height;
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Buffer = new u8[align_next(TotalSize,16)];
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clear ();
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}
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//! returns the size of the buffer
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const core::dimension2d<u32>& CStencilBuffer::getSize() const
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{
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return Size;
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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<u32>& 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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//! creates a Stencil Buffer
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IStencilBuffer* createStencilBuffer(const core::dimension2d<u32>& size, u32 bit)
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{
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#ifdef _IRR_COMPILE_WITH_BURNINGSVIDEO_
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return new CStencilBuffer(size,bit);
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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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