144 lines
2.9 KiB
C++
144 lines
2.9 KiB
C++
// Copyright (C) 2002-2009 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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#ifndef __C_SOFTWARE_2_TEXTURE_H_INCLUDED__
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#define __C_SOFTWARE_2_TEXTURE_H_INCLUDED__
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#include "SoftwareDriver2_compile_config.h"
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#include "ITexture.h"
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#include "CImage.h"
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namespace irr
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{
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namespace video
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{
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/*!
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interface for a Video Driver dependent Texture.
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*/
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class CSoftwareTexture2 : public ITexture
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{
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public:
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//! constructor
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enum eTex2Flags
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{
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GEN_MIPMAP = 1,
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IS_RENDERTARGET = 2,
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NP2_SIZE = 4,
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HAS_ALPHA = 8
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};
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CSoftwareTexture2( IImage* surface, const io::path& name, u32 flags );
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//! destructor
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virtual ~CSoftwareTexture2();
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//! lock function
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virtual void* lock(bool readOnly = false)
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{
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return MipMap[MipMapLOD]->lock();
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}
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//! unlock function
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virtual void unlock()
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{
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MipMap[MipMapLOD]->unlock();
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}
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//! Returns original size of the texture.
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virtual const core::dimension2d<u32>& getOriginalSize() const
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{
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//return MipMap[0]->getDimension();
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return OrigSize;
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}
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//! Returns the size of the largest mipmap.
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f32 getLODFactor( const f32 texArea ) const
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{
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return MipMap[0]->getImageDataSizeInPixels () * texArea;
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}
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//! Returns (=size) of the texture.
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virtual const core::dimension2d<u32>& getSize() const
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{
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return MipMap[MipMapLOD]->getDimension();
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}
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//! returns unoptimized surface
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virtual CImage* getImage() const
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{
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return MipMap[0];
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}
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//! returns texture surface
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virtual CImage* getTexture() const
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{
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return MipMap[MipMapLOD];
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}
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//! returns driver type of texture (=the driver, who created the texture)
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virtual E_DRIVER_TYPE getDriverType() const
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{
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return EDT_BURNINGSVIDEO;
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}
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//! returns color format of texture
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virtual ECOLOR_FORMAT getColorFormat() const
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{
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return BURNINGSHADER_COLOR_FORMAT;
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}
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//! returns pitch of texture (in bytes)
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virtual u32 getPitch() const
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{
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return MipMap[MipMapLOD]->getPitch();
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}
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//! Regenerates the mip map levels of the texture. Useful after locking and
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//! modifying the texture
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virtual void regenerateMipMapLevels();
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//! Select a Mipmap Level
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virtual void setCurrentMipMapLOD ( s32 lod )
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{
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if ( Flags & GEN_MIPMAP )
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MipMapLOD = lod;
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}
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//! support mipmaps
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virtual bool hasMipMaps() const
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{
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return (Flags & GEN_MIPMAP ) != 0;
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}
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//! Returns if the texture has an alpha channel
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virtual bool hasAlpha() const
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{
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return (Flags & HAS_ALPHA ) != 0;
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}
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//! is a render target
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virtual bool isRenderTarget() const
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{
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return (Flags & IS_RENDERTARGET) != 0;
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}
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private:
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core::dimension2d<u32> OrigSize;
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CImage * MipMap[SOFTWARE_DRIVER_2_MIPMAPPING_MAX];
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s32 MipMapLOD;
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u32 Flags;
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};
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} // end namespace video
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} // end namespace irr
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#endif
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