irrlicht/source/Irrlicht/CSoftwareTexture2.h

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// Copyright (C) 2002-2012 Nikolaus Gebhardt / Thomas Alten
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h
#ifndef IRR_C_SOFTWARE_2_TEXTURE_H_INCLUDED
#define IRR_C_SOFTWARE_2_TEXTURE_H_INCLUDED
#include "SoftwareDriver2_compile_config.h"
#include "ITexture.h"
#if defined(PATCH_SUPERTUX_8_0_1_with_1_9_0)
#include "IVideoDriver.h"
#else
#include "IRenderTarget.h"
#endif
#include "CImage.h"
namespace irr
{
namespace video
{
class CBurningVideoDriver;
/*!
interface for a Video Driver dependent Texture.
*/
struct CSoftwareTexture2_Bound
{
//[0.5 / width, 1 - 0.5 / width]
//int dim[2];
f32 mat[4];
u32 area; // width * height
};
#if defined(PATCH_SUPERTUX_8_0_1_with_1_9_0)
//! Enumeration describing the type of ITexture.
enum E_TEXTURE_TYPE
{
//! 2D texture.
ETT_2D,
//! Cubemap texture.
ETT_CUBEMAP
};
#endif
class CSoftwareTexture2 : public ITexture
{
public:
//! constructor
enum eTex2Flags
{
GEN_MIPMAP = 1, // has mipmaps
GEN_MIPMAP_AUTO = 2, // automatic mipmap generation
IS_RENDERTARGET = 4,
ALLOW_NPOT = 8, //allow non power of two
IMAGE_IS_LINEAR = 16,
TEXTURE_IS_LINEAR = 32,
};
CSoftwareTexture2(IImage* surface, const io::path& name, u32 flags /*eTex2Flags*/, CBurningVideoDriver* driver);
//! destructor
virtual ~CSoftwareTexture2();
u32 getMipmapLevel(s32 newLevel) const
{
if ( newLevel < 0 ) newLevel = 0;
else if ( newLevel >= (s32)array_size(MipMap)) newLevel = array_size(MipMap) - 1;
while ( newLevel > 0 && MipMap[newLevel] == 0 )
newLevel -= 1;
return newLevel;
}
//! lock function
#if defined(PATCH_SUPERTUX_8_0_1_with_1_9_0)
virtual void* lock(E_TEXTURE_LOCK_MODE mode, u32 mipmapLevel)
#else
virtual void* lock(E_TEXTURE_LOCK_MODE mode, u32 mipmapLevel, u32 layer, E_TEXTURE_LOCK_FLAGS lockFlags = ETLF_FLIP_Y_UP_RTT) IRR_OVERRIDE
#endif
{
if (Flags & GEN_MIPMAP)
{
//called from outside. must test
MipMapLOD = getMipmapLevel(mipmapLevel);
Size = MipMap[MipMapLOD]->getDimension();
Pitch = MipMap[MipMapLOD]->getPitch();
}
return MipMap[MipMapLOD]->getData();
}
//! unlock function
virtual void unlock() IRR_OVERRIDE
{
}
//! returns unoptimized surface (misleading name. burning can scale down originalimage)
virtual CImage* getImage() const
{
return MipMap[0];
}
//! returns texture surface
virtual CImage* getTexture() const
{
return MipMap[MipMapLOD];
}
//precalculated dimx-1/dimx*0.5f
const CSoftwareTexture2_Bound& getTexBound() const
{
return TexBound[MipMapLOD];
}
const CSoftwareTexture2_Bound* getTexBound_index() const
{
return TexBound;
}
#if !defined(PATCH_SUPERTUX_8_0_1_with_1_9_0)
virtual void regenerateMipMapLevels(void* data = 0, u32 layer = 0) IRR_OVERRIDE;
#else
virtual void regenerateMipMapLevels(void* data = 0);
#endif
#if defined(PATCH_SUPERTUX_8_0_1_with_1_9_0)
const core::dimension2d<u32>& getOriginalSize() const { return OriginalSize; }
const core::dimension2d<u32>& getSize() const { return Size; }
E_DRIVER_TYPE getDriverType() const { return DriverType; }
ECOLOR_FORMAT getColorFormat() const { return ColorFormat; }
ECOLOR_FORMAT getOriginalColorFormat() const { return OriginalColorFormat; }
u32 getPitch() const { return Pitch; };
bool hasMipMaps() const { return HasMipMaps; }
bool isRenderTarget() const { return IsRenderTarget; }
E_TEXTURE_TYPE getType() const { return Type; }
core::dimension2d<u32> OriginalSize;
core::dimension2d<u32> Size;
E_DRIVER_TYPE DriverType;
ECOLOR_FORMAT OriginalColorFormat;
ECOLOR_FORMAT ColorFormat;
u32 Pitch;
bool HasMipMaps;
bool IsRenderTarget;
E_TEXTURE_TYPE Type;
#endif
private:
void calcDerivative();
//! controls MipmapSelection. relation between drawn area and image size
u32 MipMapLOD; // 0 .. original Texture pot -SOFTWARE_DRIVER_2_MIPMAPPING_MAX
u32 Flags; //eTex2Flags
CBurningVideoDriver* Driver;
CImage* MipMap[SOFTWARE_DRIVER_2_MIPMAPPING_MAX];
CSoftwareTexture2_Bound TexBound[SOFTWARE_DRIVER_2_MIPMAPPING_MAX];
//Helper pointer for regenerateMipMapLevels (do not store per texture)
static const IImage* original_mip0;
};
/*!
interface for a Video Driver dependent render target.
*/
class CSoftwareRenderTarget2 : public IRenderTarget
{
public:
CSoftwareRenderTarget2(CBurningVideoDriver* driver);
virtual ~CSoftwareRenderTarget2();
virtual void setTextures(ITexture* const * textures, u32 numTextures, ITexture* depthStencil, const E_CUBE_SURFACE* cubeSurfaces, u32 numCubeSurfaces) IRR_OVERRIDE;
#if defined(PATCH_SUPERTUX_8_0_1_with_1_9_0)
E_DRIVER_TYPE DriverType;
core::array<ITexture*> Textures;
ITexture* DepthStencil;
#endif
protected:
CBurningVideoDriver* Driver;
};
} // end namespace video
} // end namespace irr
#endif // IRR_C_SOFTWARE_2_TEXTURE_H_INCLUDED