From 0ea5fc66924303d1bf73ba283a383e2aadee02f2 Mon Sep 17 00:00:00 2001 From: neodarz Date: Sat, 11 Aug 2018 20:21:34 +0200 Subject: Initial commit --- docs/doxygen/nel/a02427.html | 494 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 494 insertions(+) create mode 100644 docs/doxygen/nel/a02427.html (limited to 'docs/doxygen/nel/a02427.html') diff --git a/docs/doxygen/nel/a02427.html b/docs/doxygen/nel/a02427.html new file mode 100644 index 00000000..c31b0a59 --- /dev/null +++ b/docs/doxygen/nel/a02427.html @@ -0,0 +1,494 @@ + + +NeL: NL3D::CDeform2d class Reference + + + +
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+

NL3D::CDeform2d Class Reference

#include <deform_2d.h> +

+

Detailed Description

+This perform a 2d deformation effect on the frame buffer, by using the given function and surface. This is intended to be used on small surfaces only (getting back data from the frame buffer to build a texture is really slow...)
Author:
Nicolas Vizerie

+Nevrax France

+
Date:
2001
+ +

+ +

+Definition at line 47 of file deform_2d.h. + + + + + + + + + + + + + + + + + + + + + + + + +

Public Types

typedef std::vector< NLMISC::CVector2f > TPoint2DVect

Static Public Member Functions

void doDeform (const TPoint2DVect &surf, IDriver *drv, IPerturbUV *uvp)
void setupBuffer (uint width, uint height, uint xGranularity, uint yGranularity, uint xQuad, uint yQuad)

Static Protected Attributes

uint _Height
NLMISC::CSmartPtr< ITexture > _Tex
uint _Width
uint _XGranularity
uint _XQuad
uint _YGranularity
uint _YQuad
+

Member Typedef Documentation

+

+ + + + +
+ + +
typedef std::vector<NLMISC::CVector2f> NL3D::CDeform2d::TPoint2DVect +
+
+ + + + + +
+   + + +

+ +

+Definition at line 50 of file deform_2d.h. +

+Referenced by doDeform().

+

Member Function Documentation

+

+ + + + +
+ + + + + + + + + + + + + + + + + + + + + + + + + +
void NL3D::CDeform2d::doDeform ( const TPoint2DVect &  surf,
IDriver *  drv,
IPerturbUV *  uvp
)  [static]
+
+ + + + + +
+   + + +

+ +

+Definition at line 85 of file deform_2d.cpp. +

+References _Tex, _XGranularity, _YGranularity, NL3D::IDriver::activeVertexBuffer(), NL3D::IDriver::copyFrameBufferToTexture(), nlassert, NL3D::CDeform2d::IPerturbUV::perturbUV(), NLMISC::raiseToNextPowerOf2(), NL3D::IDriver::renderQuads(), NL3D::CMaterial::setDoubleSided(), NL3D::IDriver::setFrustum(), NL3D::CMaterial::setLighting(), NL3D::CVertexBuffer::setNumVertices(), NL3D::CVertexBuffer::setTexCoord(), NL3D::CMaterial::setTexture(), NL3D::IDriver::setupModelMatrix(), NL3D::IDriver::setupViewMatrix(), NL3D::CVertexBuffer::setVertexCoord(), NL3D::CVertexBuffer::setVertexFormat(), NL3D::CMaterial::setZFunc(), TPoint2DVect, uint, uint32, v, and NLMISC::CVector::y. +

+

00086 {
+00087         
+00088         nlassert(uvp);
+00089         
+00090         typedef CQuadEffect::TPoint2DVect TPoint2DVect;
+00091         TPoint2DVect dest;
+00092 
+00093         CQuadEffect::processPoly(surf, (float) _XGranularity, (float) _YGranularity, dest);
+00094         
+00095         uint realWidth = NLMISC::raiseToNextPowerOf2(_Width);
+00096         uint realHeight= NLMISC::raiseToNextPowerOf2(_Height);
+00097 
+00098 
+00099         // draw the poly contour
+00100         /*for (uint k = 0; k < dest.size(); ++k)
+00101         {
+00102                 CDRU::drawLine(dest[k].x, dest[k].y, dest[(k + 1) % dest.size()].x, dest[(k + 1) % dest.size()].y, *drv, CRGBA::Red);
+00103         }*/
+00104 
+00105 
+00106         
+00107         
+00108         static CMaterial mat;
+00109         mat.setDoubleSided(true);
+00110         mat.setLighting(false);
+00111         mat.setZFunc(CMaterial::always);
+00112 /*      mat.setColor(CRGBA::Red);
+00113         mat.texEnvOpRGB(0, CMaterial::Add); */
+00114         
+00115         static CVertexBuffer  vb;
+00116         vb.setVertexFormat(CVertexBuffer::PositionFlag | CVertexBuffer::TexCoord0Flag);
+00117         
+00118         
+00119 
+00120         drv->setFrustum(0, (float) _Width, 0, (float) _Height, -1, 1, false);
+00121         drv->setupViewMatrix(CMatrix::Identity);
+00122         drv->setupModelMatrix(CMatrix::Identity);
+00123 
+00124 
+00125         const float iDu = 1.f / _Width;
+00126         const float iDv = 1.f / _Height;
+00127         const float widthRatio = _Width / (float) realWidth;
+00128         const float heightRatio = _Height / (float) realHeight;
+00129 
+00130 
+00131         float u, u2, v;
+00132         float du, dv;
+00133         
+00134         TPoint2DVect::const_iterator it;
+00135 
+00136         // get back datas from frame buffer
+00137         for (it = dest.begin(); it != dest.end(); ++it)
+00138         {
+00139                 drv->copyFrameBufferToTexture(_Tex, 0, (uint32) it->x,(uint32) it->y, (uint32) it->x, (uint32) it->y, _XGranularity, _YGranularity);            
+00140         }
+00141 
+00142 
+00146         vb.setNumVertices(dest.size() << 2);
+00147         mat.setTexture(0, _Tex);
+00148         uint k = 0; // current index in the vertex buffer
+00149         for (it = dest.begin(); it != dest.end(); ++it, k += 4)
+00150         {
+00151 
+00152                 // \todo optimize this by a direct access to the vertex buffer (if needed)
+00153                 // blit data to frame buffer and apply deformations
+00154 
+00155                 vb.setVertexCoord(k, NLMISC::CVector(it->x, 0, it->y));
+00156                 vb.setVertexCoord(k + 1, NLMISC::CVector(it->x + _XGranularity, 0, it->y));
+00157                 vb.setVertexCoord(k + 2, NLMISC::CVector(it->x + _XGranularity, 0, it->y + _YGranularity));
+00158                 vb.setVertexCoord(k + 3, NLMISC::CVector(it->x , 0, it->y + _YGranularity));
+00159 
+00160                 // perturbation of the uv coordinates
+00161 
+00162                 u =  it->x * iDu;
+00163                 v = it->y * iDv;
+00164             uvp->perturbUV(u, v, du, dv);
+00165                 vb.setTexCoord(k, 0, (u + du) * widthRatio, (v + dv) * heightRatio );   
+00166 
+00167                 u2 =  (it->x + _XGranularity) * iDu;
+00168                 uvp->perturbUV(u2, v, du, dv);
+00169                 vb.setTexCoord(k + 1, 0, (u2 + du) * widthRatio, (v + dv) * heightRatio );      
+00170 
+00171                 v =  (it->y + _YGranularity) * iDv;
+00172                 uvp->perturbUV(u2, v, du, dv);
+00173                 vb.setTexCoord(k + 2, 0, (u2 + du) * widthRatio, (v + dv) * heightRatio );      
+00174 
+00175                 uvp->perturbUV(u, v, du, dv);
+00176                 vb.setTexCoord(k + 3, 0, (u + du) * widthRatio, (v + dv) * heightRatio );       
+00177         }
+00178 
+00179         drv->activeVertexBuffer(vb);
+00180         drv->renderQuads(mat, 0, dest.size());
+00181 }
+
+

+ + + + +
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
void NL3D::CDeform2d::setupBuffer ( uint  width,
uint  height,
uint  xGranularity,
uint  yGranularity,
uint  xQuad,
uint  yQuad
)  [static]
+
+ + + + + +
+   + + +

+resize the granularity of buffers for fxs

Parameters:
+ + + + + + + +
width frameBuffer width
height framebuffer height
xGranularity width of the quads taken from the framebuffer
yGranularity height of the quads taken from the framebuffer
xQuad width of the quads used to draw the fx (this is usually lower than xGanularity)
yQuad height of the quads used to draw the fx (this is usually lower than yGanularity)
+
+ +

+Definition at line 55 of file deform_2d.cpp. +

+References _Tex, _XGranularity, _XQuad, _YGranularity, _YQuad, height, NLMISC::raiseToNextPowerOf2(), uint, and width. +

+

00057 {
+00058         _Width  = width;
+00059         _Height = height;
+00060         _XGranularity = xGranularity;
+00061         _YGranularity = yGranularity;
+00062         _XQuad = xQuad;
+00063         _YQuad = yQuad;
+00064 
+00065         uint realWidth = NLMISC::raiseToNextPowerOf2(_Width);
+00066         uint realHeight= NLMISC::raiseToNextPowerOf2(_Height);
+00067 
+00068         _Tex = new CTextureBlank;
+00069         _Tex->resize(realWidth, realHeight, CBitmap::RGBA);
+00070 }
+
+

Field Documentation

+

+ + + + +
+ + +
uint NL3D::CDeform2d::_Height [static, protected] +
+
+ + + + + +
+   + + +

+ +

+Definition at line 47 of file deform_2d.cpp.

+

+ + + + +
+ + +
NLMISC::CSmartPtr< ITexture > NL3D::CDeform2d::_Tex [static, protected] +
+
+ + + + + +
+   + + +

+ +

+Definition at line 52 of file deform_2d.cpp. +

+Referenced by doDeform(), and setupBuffer().

+

+ + + + +
+ + +
uint NL3D::CDeform2d::_Width [static, protected] +
+
+ + + + + +
+   + + +

+ +

+Definition at line 46 of file deform_2d.cpp.

+

+ + + + +
+ + +
uint NL3D::CDeform2d::_XGranularity [static, protected] +
+
+ + + + + +
+   + + +

+ +

+Definition at line 48 of file deform_2d.cpp. +

+Referenced by doDeform(), and setupBuffer().

+

+ + + + +
+ + +
uint NL3D::CDeform2d::_XQuad [static, protected] +
+
+ + + + + +
+   + + +

+ +

+Definition at line 50 of file deform_2d.cpp. +

+Referenced by setupBuffer().

+

+ + + + +
+ + +
uint NL3D::CDeform2d::_YGranularity [static, protected] +
+
+ + + + + +
+   + + +

+ +

+Definition at line 49 of file deform_2d.cpp. +

+Referenced by doDeform(), and setupBuffer().

+

+ + + + +
+ + +
uint NL3D::CDeform2d::_YQuad [static, protected] +
+
+ + + + + +
+   + + +

+ +

+Definition at line 51 of file deform_2d.cpp. +

+Referenced by setupBuffer().

+

The documentation for this class was generated from the following files: +
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