irrlicht/source/Irrlicht/CSoftwareTexture2.h
cutealien 21302d038a Merging r6196 through r6248 from trunk to ogl-es branch
git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/branches/ogl-es@6249 dfc29bdd-3216-0410-991c-e03cc46cb475
2021-08-26 21:57:27 +00:00

186 lines
4.9 KiB
C++

// 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 __C_SOFTWARE_2_TEXTURE_H_INCLUDED__
#define __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
{
f32 w; // width - 0.5f;
f32 h; // height- 0.5f;
f32 cx; // texelcenter x 1.f/width*0.5f
f32 cy; // texelcenter y 1.f/height*0.5f
};
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_
{
}
/*
//! compare the area drawn with the area of the texture
f32 getLODFactor( const f32 texArea ) const
{
return MipMap0_Area[0]* MipMap0_Area[1] * 0.5f * texArea;
//return MipMap[0]->getImageDataSizeInPixels () * texArea;
}
*/
const u32* getMipMap0_Area() const
{
return MipMap0_Area;
}
f32 get_lod_bias() const { return LodBIAS; }
//! 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];
}
#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; }
core::dimension2d<u32> OriginalSize;
core::dimension2d<u32> Size;
E_DRIVER_TYPE DriverType;
ECOLOR_FORMAT OriginalColorFormat;
ECOLOR_FORMAT ColorFormat;
u32 Pitch;
bool HasMipMaps;
bool IsRenderTarget;
#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];
u32 MipMap0_Area[2];
f32 LodBIAS; // Tweak mipmap selection
};
/*!
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*> Texture;
#endif
protected:
CBurningVideoDriver* Driver;
};
} // end namespace video
} // end namespace irr
#endif // __C_SOFTWARE_2_TEXTURE_H_INCLUDED__