<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"> <title>FTGL: FTTextureGlyph.cpp Source File</title> <link href="doxygen.css" rel="stylesheet" type="text/css"> <link href="tabs.css" rel="stylesheet" type="text/css"> </head><body> <!-- Generated by Doxygen 1.5.4 --> <div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul> </div> <h1>FTTextureGlyph.cpp</h1><a href="FTTextureGlyph_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#include "FTTextureGlyph.h"</span> <a name="l00002"></a>00002 <a name="l00003"></a>00003 GLint FTTextureGlyph::activeTextureID = 0; <a name="l00004"></a>00004 <a name="l00005"></a>00005 FTTextureGlyph::FTTextureGlyph( FT_GlyphSlot glyph, <span class="keywordtype">int</span> <span class="keywordtype">id</span>, <span class="keywordtype">int</span> xOffset, <span class="keywordtype">int</span> yOffset, GLsizei width, GLsizei height) <a name="l00006"></a>00006 : FTGlyph( glyph), <a name="l00007"></a>00007 destWidth(0), <a name="l00008"></a>00008 destHeight(0), <a name="l00009"></a>00009 glTextureID(id) <a name="l00010"></a>00010 { <a name="l00011"></a>00011 err = FT_Render_Glyph( glyph, FT_RENDER_MODE_NORMAL); <a name="l00012"></a>00012 <span class="keywordflow">if</span>( err || glyph->format != ft_glyph_format_bitmap) <a name="l00013"></a>00013 { <a name="l00014"></a>00014 <span class="keywordflow">return</span>; <a name="l00015"></a>00015 } <a name="l00016"></a>00016 <a name="l00017"></a>00017 FT_Bitmap bitmap = glyph->bitmap; <a name="l00018"></a>00018 <a name="l00019"></a>00019 destWidth = bitmap.width; <a name="l00020"></a>00020 destHeight = bitmap.rows; <a name="l00021"></a>00021 <a name="l00022"></a>00022 <span class="keywordflow">if</span>( destWidth && destHeight) <a name="l00023"></a>00023 { <a name="l00024"></a>00024 glPushClientAttrib( GL_CLIENT_PIXEL_STORE_BIT); <a name="l00025"></a>00025 glPixelStorei( GL_UNPACK_LSB_FIRST, GL_FALSE); <a name="l00026"></a>00026 glPixelStorei( GL_UNPACK_ROW_LENGTH, 0); <a name="l00027"></a>00027 glPixelStorei( GL_UNPACK_ALIGNMENT, 1); <a name="l00028"></a>00028 <a name="l00029"></a>00029 glBindTexture( GL_TEXTURE_2D, glTextureID); <a name="l00030"></a>00030 glTexSubImage2D( GL_TEXTURE_2D, 0, xOffset, yOffset, destWidth, destHeight, GL_ALPHA, GL_UNSIGNED_BYTE, bitmap.buffer); <a name="l00031"></a>00031 <a name="l00032"></a>00032 glPopClientAttrib(); <a name="l00033"></a>00033 } <a name="l00034"></a>00034 <a name="l00035"></a>00035 <a name="l00036"></a>00036 <span class="comment">// 0 </span> <a name="l00037"></a>00037 <span class="comment">// +----+</span> <a name="l00038"></a>00038 <span class="comment">// | |</span> <a name="l00039"></a>00039 <span class="comment">// | |</span> <a name="l00040"></a>00040 <span class="comment">// | |</span> <a name="l00041"></a>00041 <span class="comment">// +----+</span> <a name="l00042"></a>00042 <span class="comment">// 1</span> <a name="l00043"></a>00043 <a name="l00044"></a>00044 uv[0].X( static_cast<float>(xOffset) / static_cast<float>(width)); <a name="l00045"></a>00045 uv[0].Y( static_cast<float>(yOffset) / static_cast<float>(height)); <a name="l00046"></a>00046 uv[1].X( static_cast<float>( xOffset + destWidth) / static_cast<float>(width)); <a name="l00047"></a>00047 uv[1].Y( static_cast<float>( yOffset + destHeight) / static_cast<float>(height)); <a name="l00048"></a>00048 <a name="l00049"></a>00049 pos.X( glyph->bitmap_left); <a name="l00050"></a>00050 pos.Y( glyph->bitmap_top); <a name="l00051"></a>00051 } <a name="l00052"></a>00052 <a name="l00053"></a>00053 <a name="l00054"></a>00054 FTTextureGlyph::~FTTextureGlyph() <a name="l00055"></a>00055 {} <a name="l00056"></a>00056 <a name="l00057"></a>00057 <a name="l00058"></a>00058 <span class="keyword">const</span> FTPoint& FTTextureGlyph::Render( <span class="keyword">const</span> FTPoint& pen) <a name="l00059"></a>00059 { <a name="l00060"></a>00060 <span class="keywordflow">if</span>( activeTextureID != glTextureID) <a name="l00061"></a>00061 { <a name="l00062"></a>00062 glBindTexture( GL_TEXTURE_2D, (GLuint)glTextureID); <a name="l00063"></a>00063 activeTextureID = glTextureID; <a name="l00064"></a>00064 } <a name="l00065"></a>00065 <a name="l00066"></a>00066 glTranslatef( pen.X(), pen.Y(), 0.0f); <a name="l00067"></a>00067 <a name="l00068"></a>00068 glBegin( GL_QUADS); <a name="l00069"></a>00069 glTexCoord2f( uv[0].X(), uv[0].Y()); <a name="l00070"></a>00070 glVertex2f( pos.X(), pos.Y()); <a name="l00071"></a>00071 <a name="l00072"></a>00072 glTexCoord2f( uv[0].X(), uv[1].Y()); <a name="l00073"></a>00073 glVertex2f( pos.X(), pos.Y() - destHeight); <a name="l00074"></a>00074 <a name="l00075"></a>00075 glTexCoord2f( uv[1].X(), uv[1].Y()); <a name="l00076"></a>00076 glVertex2f( destWidth + pos.X(), pos.Y() - destHeight); <a name="l00077"></a>00077 <a name="l00078"></a>00078 glTexCoord2f( uv[1].X(), uv[0].Y()); <a name="l00079"></a>00079 glVertex2f( destWidth + pos.X(), pos.Y()); <a name="l00080"></a>00080 glEnd(); <a name="l00081"></a>00081 <a name="l00082"></a>00082 <span class="keywordflow">return</span> advance; <a name="l00083"></a>00083 } <a name="l00084"></a>00084 </pre></div><hr size="1"><address style="text-align: right;"><small>Generated on Tue Dec 18 20:45:49 2007 for FTGL by <a href="http://www.doxygen.org/index.html"> <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.4 </small></address> </body> </html>