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<a class="qindex" href="index.html">Main Page</a> <a class="qindex" href="namespaces.html">Namespace List</a> <a class="qindex" href="hierarchy.html">Class Hierarchy</a> <a class="qindex" href="classes.html">Alphabetical List</a> <a class="qindex" href="annotated.html">Compound List</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="namespacemembers.html">Namespace Members</a> <a class="qindex" href="functions.html">Compound Members</a> <a class="qindex" href="globals.html">File Members</a> <a class="qindex" href="pages.html">Related Pages</a> <a class="qindexRef" doxygen="_cgi:http://www.nevrax.org/cgi-bin/nel-search.cgi" href="http://www.nevrax.org/cgi-bin/nel-search.cgi">Search</a> </center>
<hr><h1>deform_2d.cpp</h1><a href="deform__2d_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
00007 <font class="comment">/* Copyright, 2000, 2001 Nevrax Ltd.</font>
00008 <font class="comment"> *</font>
00009 <font class="comment"> * This file is part of NEVRAX NEL.</font>
00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font>
00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
00013 <font class="comment"> * any later version.</font>
00014 <font class="comment"></font>
00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font>
00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00018 <font class="comment"> * General Public License for more details.</font>
00019 <font class="comment"></font>
00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font>
00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
00023 <font class="comment"> * MA 02111-1307, USA.</font>
00024 <font class="comment"> */</font>
00025
00026 <font class="preprocessor">#include "<a class="code" href="std3d_8h.html">std3d.h</a>"</font>
00027
00028 <font class="preprocessor">#include "<a class="code" href="deform__2d_8h.html">3d/deform_2d.h</a>"</font>
00029
00030
00031
00032 <font class="preprocessor">#include <vector></font>
00033 <font class="preprocessor">#include "<a class="code" href="vector__2f_8h.html">nel/misc/vector_2f.h</a>"</font>
00034 <font class="preprocessor">#include "<a class="code" href="smart__ptr_8h.html">nel/misc/smart_ptr.h</a>"</font>
00035 <font class="preprocessor">#include "<a class="code" href="heat__haze_8h.html">3d/heat_haze.h</a>"</font>
00036 <font class="preprocessor">#include "<a class="code" href="quad__effect_8h.html">3d/quad_effect.h</a>"</font>
00037 <font class="preprocessor">#include "<a class="code" href="texture__blank_8h.html">3d/texture_blank.h</a>"</font>
00038 <font class="preprocessor">#include "<a class="code" href="driver_8h.html">3d/driver.h</a>"</font>
00039 <font class="preprocessor">#include "<a class="code" href="dru_8h.html">3d/dru.h</a>"</font>
00040 <font class="preprocessor">#include "<a class="code" href="material_8h.html">3d/material.h</a>"</font>
00041
00042 <font class="keyword">namespace </font>NL3D {
00043
00044
00045
<a name="l00046"></a><a class="code" href="classNL3D_1_1CDeform2d.html#q0">00046</a> uint CDeform2d::_Width;
<a name="l00047"></a><a class="code" href="classNL3D_1_1CDeform2d.html#q1">00047</a> uint CDeform2d::_Height;
<a name="l00048"></a><a class="code" href="classNL3D_1_1CDeform2d.html#q2">00048</a> uint CDeform2d::_XGranularity;
<a name="l00049"></a><a class="code" href="classNL3D_1_1CDeform2d.html#q3">00049</a> uint CDeform2d::_YGranularity;
<a name="l00050"></a><a class="code" href="classNL3D_1_1CDeform2d.html#q4">00050</a> uint CDeform2d::_XQuad;
<a name="l00051"></a><a class="code" href="classNL3D_1_1CDeform2d.html#q5">00051</a> uint CDeform2d::_YQuad;
<a name="l00052"></a><a class="code" href="classNL3D_1_1CDeform2d.html#q6">00052</a> <a class="code" href="classNLMISC_1_1CSmartPtr.html">NLMISC::CSmartPtr<ITexture></a> CDeform2d::_Tex;
00053
00054
<a name="l00055"></a><a class="code" href="classNL3D_1_1CDeform2d.html#d1">00055</a> <font class="keywordtype">void</font> CDeform2d::setupBuffer(uint <a class="code" href="driver__opengl__extension__def_8h.html#a389">width</a>, uint <a class="code" href="driver__opengl__extension__def_8h.html#a390">height</a>, uint xGranularity, uint yGranularity
00056 , uint xQuad, uint yQuad)
00057 {
00058 <a class="code" href="classNL3D_1_1CDeform2d.html#q0">_Width</a> = <a class="code" href="driver__opengl__extension__def_8h.html#a389">width</a>;
00059 <a class="code" href="classNL3D_1_1CDeform2d.html#q1">_Height</a> = <a class="code" href="driver__opengl__extension__def_8h.html#a390">height</a>;
00060 <a class="code" href="classNL3D_1_1CDeform2d.html#q2">_XGranularity</a> = xGranularity;
00061 <a class="code" href="classNL3D_1_1CDeform2d.html#q3">_YGranularity</a> = yGranularity;
00062 <a class="code" href="classNL3D_1_1CDeform2d.html#q4">_XQuad</a> = xQuad;
00063 <a class="code" href="classNL3D_1_1CDeform2d.html#q5">_YQuad</a> = yQuad;
00064
00065 uint realWidth = <a class="code" href="namespaceNLMISC.html#a223">NLMISC::raiseToNextPowerOf2</a>(<a class="code" href="classNL3D_1_1CDeform2d.html#q0">_Width</a>);
00066 uint realHeight= <a class="code" href="namespaceNLMISC.html#a223">NLMISC::raiseToNextPowerOf2</a>(<a class="code" href="classNL3D_1_1CDeform2d.html#q1">_Height</a>);
00067
00068 <a class="code" href="classNL3D_1_1CDeform2d.html#q6">_Tex</a> = <font class="keyword">new</font> CTextureBlank;
00069 <a class="code" href="classNL3D_1_1CDeform2d.html#q6">_Tex</a>->resize(realWidth, realHeight, CBitmap::RGBA);
00070 }
00071
00072
00073
00074
00076 <font class="keyword">static</font> <font class="keyword">inline</font> <font class="keywordtype">void</font> <a class="code" href="namespaceNL3D.html#a322">computePerturbation</a>(<font class="keyword">const</font> <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>, <font class="keyword">const</font> <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>, <font class="keywordtype">float</font> &dx, <font class="keywordtype">float</font> &dy)
00077 {
00078 <font class="comment">// dummy func for now</font>
00079 <font class="comment">/* dx = 0.05f * (float) (rand() * (1.F / RAND_MAX));</font>
00080 <font class="comment"> dy = 0.05f * (float) (rand() * (1.F / RAND_MAX));*/</font>
00081 dx= 0.f;
00082 dy = 0.f;
00083 }
00084
<a name="l00085"></a><a class="code" href="classNL3D_1_1CDeform2d.html#d0">00085</a> <font class="keywordtype">void</font> CDeform2d::doDeform(<font class="keyword">const</font> TPoint2DVect &surf, IDriver *drv, IPerturbUV *uvp)
00086 {
00087
00088 <a class="code" href="debug_8h.html#a6">nlassert</a>(uvp);
00089
00090 <font class="keyword">typedef</font> CQuadEffect::TPoint2DVect <a class="code" href="classNL3D_1_1CDeform2d.html#s0">TPoint2DVect</a>;
00091 <a class="code" href="classNL3D_1_1CDeform2d.html#s0">TPoint2DVect</a> dest;
00092
00093 CQuadEffect::processPoly(surf, (<font class="keywordtype">float</font>) <a class="code" href="classNL3D_1_1CDeform2d.html#q2">_XGranularity</a>, (<font class="keywordtype">float</font>) <a class="code" href="classNL3D_1_1CDeform2d.html#q3">_YGranularity</a>, dest);
00094
00095 uint realWidth = <a class="code" href="namespaceNLMISC.html#a223">NLMISC::raiseToNextPowerOf2</a>(<a class="code" href="classNL3D_1_1CDeform2d.html#q0">_Width</a>);
00096 uint realHeight= <a class="code" href="namespaceNLMISC.html#a223">NLMISC::raiseToNextPowerOf2</a>(<a class="code" href="classNL3D_1_1CDeform2d.html#q1">_Height</a>);
00097
00098
00099 <font class="comment">// draw the poly contour</font>
00100 <font class="comment">/*for (uint k = 0; k < dest.size(); ++k)</font>
00101 <font class="comment"> {</font>
00102 <font class="comment"> CDRU::drawLine(dest[k].x, dest[k].y, dest[(k + 1) % dest.size()].x, dest[(k + 1) % dest.size()].y, *drv, CRGBA::Red);</font>
00103 <font class="comment"> }*/</font>
00104
00105
00106
00107
00108 <font class="keyword">static</font> CMaterial mat;
00109 mat.setDoubleSided(<font class="keyword">true</font>);
00110 mat.setLighting(<font class="keyword">false</font>);
00111 mat.setZFunc(CMaterial::always);
00112 <font class="comment">/* mat.setColor(CRGBA::Red);</font>
00113 <font class="comment"> mat.texEnvOpRGB(0, CMaterial::Add); */</font>
00114
00115 <font class="keyword">static</font> CVertexBuffer vb;
00116 vb.setVertexFormat(CVertexBuffer::PositionFlag | CVertexBuffer::TexCoord0Flag);
00117
00118
00119
00120 drv->setFrustum(0, (<font class="keywordtype">float</font>) <a class="code" href="classNL3D_1_1CDeform2d.html#q0">_Width</a>, 0, (<font class="keywordtype">float</font>) <a class="code" href="classNL3D_1_1CDeform2d.html#q1">_Height</a>, -1, 1, <font class="keyword">false</font>);
00121 drv->setupViewMatrix(CMatrix::Identity);
00122 drv->setupModelMatrix(CMatrix::Identity);
00123
00124
00125 <font class="keyword">const</font> <font class="keywordtype">float</font> iDu = 1.f / <a class="code" href="classNL3D_1_1CDeform2d.html#q0">_Width</a>;
00126 <font class="keyword">const</font> <font class="keywordtype">float</font> iDv = 1.f / <a class="code" href="classNL3D_1_1CDeform2d.html#q1">_Height</a>;
00127 <font class="keyword">const</font> <font class="keywordtype">float</font> widthRatio = <a class="code" href="classNL3D_1_1CDeform2d.html#q0">_Width</a> / (float) realWidth;
00128 <font class="keyword">const</font> <font class="keywordtype">float</font> heightRatio = <a class="code" href="classNL3D_1_1CDeform2d.html#q1">_Height</a> / (float) realHeight;
00129
00130
00131 <font class="keywordtype">float</font> u, u2, <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>;
00132 <font class="keywordtype">float</font> du, dv;
00133
00134 TPoint2DVect::const_iterator it;
00135
00136 <font class="comment">// get back datas from frame buffer</font>
00137 <font class="keywordflow">for</font> (it = dest.begin(); it != dest.end(); ++it)
00138 {
00139 drv->copyFrameBufferToTexture(<a class="code" href="classNL3D_1_1CDeform2d.html#q6">_Tex</a>, 0, (uint32) it->x,(uint32) it->y, (uint32) it->x, (uint32) it->y, <a class="code" href="classNL3D_1_1CDeform2d.html#q2">_XGranularity</a>, <a class="code" href="classNL3D_1_1CDeform2d.html#q3">_YGranularity</a>);
00140 }
00141
00142
00146 vb.setNumVertices(dest.size() << 2);
00147 mat.setTexture(0, <a class="code" href="classNL3D_1_1CDeform2d.html#q6">_Tex</a>);
00148 uint k = 0; <font class="comment">// current index in the vertex buffer</font>
00149 <font class="keywordflow">for</font> (it = dest.begin(); it != dest.end(); ++it, k += 4)
00150 {
00151
00152 <font class="comment">// \todo optimize this by a direct access to the vertex buffer (if needed)</font>
00153 <font class="comment">// blit data to frame buffer and apply deformations</font>
00154
00155 vb.setVertexCoord(k, <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>(it->x, 0, it->y));
00156 vb.setVertexCoord(k + 1, <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>(it->x + <a class="code" href="classNL3D_1_1CDeform2d.html#q2">_XGranularity</a>, 0, it->y));
00157 vb.setVertexCoord(k + 2, <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>(it->x + _XGranularity, 0, it-><a class="code" href="classNLMISC_1_1CVector.html#m1">y</a> + <a class="code" href="classNL3D_1_1CDeform2d.html#q3">_YGranularity</a>));
00158 vb.setVertexCoord(k + 3, <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>(it->x , 0, it->y + <a class="code" href="classNL3D_1_1CDeform2d.html#q3">_YGranularity</a>));
00159
00160 <font class="comment">// perturbation of the uv coordinates</font>
00161
00162 u = it->x * iDu;
00163 <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a> = it->y * iDv;
00164 uvp->perturbUV(u, <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>, du, dv);
00165 vb.setTexCoord(k, 0, (u + du) * widthRatio, (<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a> + dv) * heightRatio );
00166
00167 u2 = (it->x + _XGranularity) * iDu;
00168 uvp->perturbUV(u2, <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>, du, dv);
00169 vb.setTexCoord(k + 1, 0, (u2 + du) * widthRatio, (<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a> + dv) * heightRatio );
00170
00171 <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a> = (it->y + <a class="code" href="classNL3D_1_1CDeform2d.html#q3">_YGranularity</a>) * iDv;
00172 uvp->perturbUV(u2, <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>, du, dv);
00173 vb.setTexCoord(k + 2, 0, (u2 + du) * widthRatio, (<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a> + dv) * heightRatio );
00174
00175 uvp->perturbUV(u, <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>, du, dv);
00176 vb.setTexCoord(k + 3, 0, (u + du) * widthRatio, (<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a> + dv) * heightRatio );
00177 }
00178
00179 drv->activeVertexBuffer(vb);
00180 drv->renderQuads(mat, 0, dest.size());
00181 }
00182
00183 } <font class="comment">// NL3D</font>
</pre></div>
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