<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.5"/> <title>libg15render: pixel.c File Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="navtree.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="resize.js"></script> <script type="text/javascript" src="navtree.js"></script> <script type="text/javascript"> $(document).ready(initResizable); $(window).load(resizeHeight); </script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td style="padding-left: 0.5em;"> <div id="projectname">libg15render </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.5 --> <div id="navrow1" class="tabs"> <ul class="tablist"> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="annotated.html"><span>Data Structures</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul> </div> <div id="navrow2" class="tabs2"> <ul class="tablist"> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>Globals</span></a></li> </ul> </div> </div><!-- top --> <div id="side-nav" class="ui-resizable side-nav-resizable"> <div id="nav-tree"> <div id="nav-tree-contents"> <div id="nav-sync" class="sync"></div> </div> </div> <div id="splitbar" style="-moz-user-select:none;" class="ui-resizable-handle"> </div> </div> <script type="text/javascript"> $(document).ready(function(){initNavTree('pixel_8c.html','');}); </script> <div id="doc-content"> <div class="header"> <div class="summary"> <a href="#func-members">Functions</a> </div> <div class="headertitle"> <div class="title">pixel.c File Reference</div> </div> </div><!--header--> <div class="contents"> <div class="textblock"><code>#include <fcntl.h></code><br/> <code>#include "<a class="el" href="libg15render_8h_source.html">libg15render.h</a>"</code><br/> </div> <p><a href="pixel_8c_source.html">Go to the source code of this file.</a></p> <table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a> Functions</h2></td></tr> <tr class="memitem:a6d4ffa4ef254051c9b3673169ffc1b95"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#a6d4ffa4ef254051c9b3673169ffc1b95">g15r_drawBar</a> (<a class="el" href="structg15canvas.html">g15canvas</a> *canvas, int x1, int y1, int x2, int y2, int color, int num, int max, int type)</td></tr> <tr class="memdesc:a6d4ffa4ef254051c9b3673169ffc1b95"><td class="mdescLeft"> </td><td class="mdescRight">Draws a completion bar. <a href="#a6d4ffa4ef254051c9b3673169ffc1b95">More...</a><br/></td></tr> <tr class="separator:a6d4ffa4ef254051c9b3673169ffc1b95"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ac63ee87144faa97be6173eb28974dc9b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#ac63ee87144faa97be6173eb28974dc9b">g15r_drawBigNum</a> (<a class="el" href="structg15canvas.html">g15canvas</a> *canvas, unsigned int x1, unsigned int y1, unsigned int x2, unsigned int y2, int color, int num)</td></tr> <tr class="memdesc:ac63ee87144faa97be6173eb28974dc9b"><td class="mdescLeft"> </td><td class="mdescRight">Draw a large number. <a href="#ac63ee87144faa97be6173eb28974dc9b">More...</a><br/></td></tr> <tr class="separator:ac63ee87144faa97be6173eb28974dc9b"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:aa79609508fcd3094291adbeb042e45e8"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#aa79609508fcd3094291adbeb042e45e8">g15r_drawCircle</a> (<a class="el" href="structg15canvas.html">g15canvas</a> *canvas, int x, int y, int r, int fill, int color)</td></tr> <tr class="memdesc:aa79609508fcd3094291adbeb042e45e8"><td class="mdescLeft"> </td><td class="mdescRight">Draws a circle centered at (x, y) with a radius of r. <a href="#aa79609508fcd3094291adbeb042e45e8">More...</a><br/></td></tr> <tr class="separator:aa79609508fcd3094291adbeb042e45e8"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:af9c1fbc33fdcb45c32ec65794c1a84c7"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#af9c1fbc33fdcb45c32ec65794c1a84c7">g15r_drawIcon</a> (<a class="el" href="structg15canvas.html">g15canvas</a> *canvas, char *buf, int my_x, int my_y, int width, int height)</td></tr> <tr class="memdesc:af9c1fbc33fdcb45c32ec65794c1a84c7"><td class="mdescLeft"> </td><td class="mdescRight">Draw an icon to the screen from a wbmp buffer. <a href="#af9c1fbc33fdcb45c32ec65794c1a84c7">More...</a><br/></td></tr> <tr class="separator:af9c1fbc33fdcb45c32ec65794c1a84c7"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a1eaf03a62dcd91f3175bc3920cde9eb6"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (<a class="el" href="structg15canvas.html">g15canvas</a> *canvas, int px1, int py1, int px2, int py2, const int color)</td></tr> <tr class="memdesc:a1eaf03a62dcd91f3175bc3920cde9eb6"><td class="mdescLeft"> </td><td class="mdescRight">Draws a line from (px1, py1) to (px2, py2) <a href="#a1eaf03a62dcd91f3175bc3920cde9eb6">More...</a><br/></td></tr> <tr class="separator:a1eaf03a62dcd91f3175bc3920cde9eb6"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a3549ddf1007d917e0e054fb453db9cca"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#a3549ddf1007d917e0e054fb453db9cca">g15r_drawRoundBox</a> (<a class="el" href="structg15canvas.html">g15canvas</a> *canvas, int x1, int y1, int x2, int y2, int fill, int color)</td></tr> <tr class="memdesc:a3549ddf1007d917e0e054fb453db9cca"><td class="mdescLeft"> </td><td class="mdescRight">Draws a box with rounded corners bounded by (x1, y1) and (x2, y2) <a href="#a3549ddf1007d917e0e054fb453db9cca">More...</a><br/></td></tr> <tr class="separator:a3549ddf1007d917e0e054fb453db9cca"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a961a7736a4c98480d3d7cc551a579f8b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#a961a7736a4c98480d3d7cc551a579f8b">g15r_drawSprite</a> (<a class="el" href="structg15canvas.html">g15canvas</a> *canvas, char *buf, int my_x, int my_y, int width, int height, int start_x, int start_y, int total_width)</td></tr> <tr class="memdesc:a961a7736a4c98480d3d7cc551a579f8b"><td class="mdescLeft"> </td><td class="mdescRight">Draw a sprite to the screen from a wbmp buffer. <a href="#a961a7736a4c98480d3d7cc551a579f8b">More...</a><br/></td></tr> <tr class="separator:a961a7736a4c98480d3d7cc551a579f8b"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a1cd9b26679257b0f0d6a18abb161200b"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#a1cd9b26679257b0f0d6a18abb161200b">g15r_loadWbmpSplash</a> (<a class="el" href="structg15canvas.html">g15canvas</a> *canvas, char *filename)</td></tr> <tr class="memdesc:a1cd9b26679257b0f0d6a18abb161200b"><td class="mdescLeft"> </td><td class="mdescRight">Draw a splash screen from 160x43 wbmp file. <a href="#a1cd9b26679257b0f0d6a18abb161200b">More...</a><br/></td></tr> <tr class="separator:a1cd9b26679257b0f0d6a18abb161200b"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ad10d3e2fe33419cefbf9e6b8fc06e9c8"><td class="memItemLeft" align="right" valign="top">char * </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#ad10d3e2fe33419cefbf9e6b8fc06e9c8">g15r_loadWbmpToBuf</a> (char *filename, int *img_width, int *img_height)</td></tr> <tr class="memdesc:ad10d3e2fe33419cefbf9e6b8fc06e9c8"><td class="mdescLeft"> </td><td class="mdescRight">Load a wbmp file into a buffer. <a href="#ad10d3e2fe33419cefbf9e6b8fc06e9c8">More...</a><br/></td></tr> <tr class="separator:ad10d3e2fe33419cefbf9e6b8fc06e9c8"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:acc211f96c69c987736f92accf5dbd9a2"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (<a class="el" href="structg15canvas.html">g15canvas</a> *canvas, int x1, int y1, int x2, int y2, int color, int thick, int fill)</td></tr> <tr class="memdesc:acc211f96c69c987736f92accf5dbd9a2"><td class="mdescLeft"> </td><td class="mdescRight">Draws a box bounded by (x1, y1) and (x2, y2) <a href="#acc211f96c69c987736f92accf5dbd9a2">More...</a><br/></td></tr> <tr class="separator:acc211f96c69c987736f92accf5dbd9a2"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a6ab0fe17fbd5f010981fa9596ff3aca6"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#a6ab0fe17fbd5f010981fa9596ff3aca6">g15r_pixelOverlay</a> (<a class="el" href="structg15canvas.html">g15canvas</a> *canvas, int x1, int y1, int width, int height, short colormap[])</td></tr> <tr class="memdesc:a6ab0fe17fbd5f010981fa9596ff3aca6"><td class="mdescLeft"> </td><td class="mdescRight">Overlays a bitmap of size width x height starting at (x1, y1) <a href="#a6ab0fe17fbd5f010981fa9596ff3aca6">More...</a><br/></td></tr> <tr class="separator:a6ab0fe17fbd5f010981fa9596ff3aca6"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a9f04b45ebf46f039d77d236a2de69d25"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#a9f04b45ebf46f039d77d236a2de69d25">g15r_pixelReverseFill</a> (<a class="el" href="structg15canvas.html">g15canvas</a> *canvas, int x1, int y1, int x2, int y2, int fill, int color)</td></tr> <tr class="memdesc:a9f04b45ebf46f039d77d236a2de69d25"><td class="mdescLeft"> </td><td class="mdescRight">Fills an area bounded by (x1, y1) and (x2, y2) <a href="#a9f04b45ebf46f039d77d236a2de69d25">More...</a><br/></td></tr> <tr class="separator:a9f04b45ebf46f039d77d236a2de69d25"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:acd3415eef442ced2b5e064f95f04b624"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#acd3415eef442ced2b5e064f95f04b624">swap</a> (int *x, int *y)</td></tr> <tr class="separator:acd3415eef442ced2b5e064f95f04b624"><td class="memSeparator" colspan="2"> </td></tr> </table> <h2 class="groupheader">Function Documentation</h2> <a class="anchor" id="a6d4ffa4ef254051c9b3673169ffc1b95"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void g15r_drawBar </td> <td>(</td> <td class="paramtype"><a class="el" href="structg15canvas.html">g15canvas</a> * </td> <td class="paramname"><em>canvas</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>x1</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>y1</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>x2</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>y2</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>color</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>num</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>max</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>type</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Draws a completion bar. </p> <p>Given a maximum value, and a value between 0 and that maximum value, calculate and draw a bar showing that percentage.</p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">canvas</td><td>A pointer to a <a class="el" href="structg15canvas.html" title="This structure holds the data need to render objects to the LCD screen. ">g15canvas</a> struct in which the buffer to be operated on is found. </td></tr> <tr><td class="paramname">x1</td><td>Defines leftmost bound of the bar. </td></tr> <tr><td class="paramname">y1</td><td>Defines uppermost bound of the bar. </td></tr> <tr><td class="paramname">x2</td><td>Defines rightmost bound of the bar. </td></tr> <tr><td class="paramname">y2</td><td>Defines bottommost bound of the bar. </td></tr> <tr><td class="paramname">color</td><td>The bar will be drawn this color. </td></tr> <tr><td class="paramname">num</td><td>Number of units relative to max filled. </td></tr> <tr><td class="paramname">max</td><td>Number of units equal to 100% filled. </td></tr> <tr><td class="paramname">type</td><td>Type of bar. 1=solid bar, 2=solid bar with border, 3 = solid bar with I-frame. </td></tr> </table> </dd> </dl> <p>Definition at line <a class="el" href="pixel_8c_source.html#l00337">337</a> of file <a class="el" href="pixel_8c_source.html">pixel.c</a>.</p> <p>References <a class="el" href="pixel_8c_source.html#l00099">g15r_drawLine()</a>, and <a class="el" href="pixel_8c_source.html#l00163">g15r_pixelBox()</a>.</p> <div class="fragment"><div class="line"><a name="l00339"></a><span class="lineno"> 339</span> {</div> <div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="keywordtype">float</span> len, length;</div> <div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <span class="keywordtype">int</span> x;</div> <div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="keywordflow">if</span> (max == 0)</div> <div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="keywordflow">return</span>;</div> <div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <span class="keywordflow">if</span> (num > max)</div> <div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  num = max;</div> <div class="line"><a name="l00346"></a><span class="lineno"> 346</span> </div> <div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="keywordflow">if</span> (type == 2)</div> <div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  {</div> <div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  y1 += 2;</div> <div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  y2 -= 2;</div> <div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  x1 += 2;</div> <div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  x2 -= 2;</div> <div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  }</div> <div class="line"><a name="l00354"></a><span class="lineno"> 354</span> </div> <div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  len = ((float) max / (<span class="keywordtype">float</span>) num);</div> <div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  length = (x2 - x1) / len;</div> <div class="line"><a name="l00357"></a><span class="lineno"> 357</span> </div> <div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="keywordflow">if</span> (type == 1)</div> <div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  {</div> <div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1, y1 - type, x2, y2 + type, color ^ 1, 1, 1);</div> <div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1, y1 - type, x2, y2 + type, color, 1, 0);</div> <div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  }</div> <div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (type == 2)</div> <div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  {</div> <div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1 - 2, y1 - type, x2 + 2, y2 + type, color ^ 1,</div> <div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  1, 1);</div> <div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1 - 2, y1 - type, x2 + 2, y2 + type, color, 1,</div> <div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  0);</div> <div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  }</div> <div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (type == 3)</div> <div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  {</div> <div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x1, y1 - type, x1, y2 + type, color);</div> <div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x2, y1 - type, x2, y2 + type, color);</div> <div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x1, y1 + ((y2 - y1) / 2), x2,</div> <div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  y1 + ((y2 - y1) / 2), color);</div> <div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  }</div> <div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1, y1, (<span class="keywordtype">int</span>) ceil (x1 + length), y2, color, 1, 1);</div> <div class="line"><a name="l00378"></a><span class="lineno"> 378</span> }</div> <div class="ttc" id="libg15render_8h_html_a1eaf03a62dcd91f3175bc3920cde9eb6"><div class="ttname"><a href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a></div><div class="ttdeci">void g15r_drawLine(g15canvas *canvas, int px1, int py1, int px2, int py2, const int color)</div><div class="ttdoc">Draws a line from (px1, py1) to (px2, py2) </div><div class="ttdef"><b>Definition:</b> <a href="pixel_8c_source.html#l00099">pixel.c:99</a></div></div> <div class="ttc" id="libg15render_8h_html_acc211f96c69c987736f92accf5dbd9a2"><div class="ttname"><a href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a></div><div class="ttdeci">void g15r_pixelBox(g15canvas *canvas, int x1, int y1, int x2, int y2, int color, int thick, int fill)</div><div class="ttdoc">Draws a box bounded by (x1, y1) and (x2, y2) </div><div class="ttdef"><b>Definition:</b> <a href="pixel_8c_source.html#l00163">pixel.c:163</a></div></div> </div><!-- fragment --> </div> </div> <a class="anchor" id="ac63ee87144faa97be6173eb28974dc9b"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void g15r_drawBigNum </td> <td>(</td> <td class="paramtype"><a class="el" href="structg15canvas.html">g15canvas</a> * </td> <td class="paramname"><em>canvas</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">unsigned int </td> <td class="paramname"><em>x1</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">unsigned int </td> <td class="paramname"><em>y1</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">unsigned int </td> <td class="paramname"><em>x2</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">unsigned int </td> <td class="paramname"><em>y2</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>color</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>num</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Draw a large number. </p> <p>Draw a large number to a canvas</p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">canvas</td><td>A pointer to a <a class="el" href="structg15canvas.html" title="This structure holds the data need to render objects to the LCD screen. ">g15canvas</a> struct in which the buffer to be operated on is found. </td></tr> <tr><td class="paramname">x1</td><td>Defines leftmost bound of the number. </td></tr> <tr><td class="paramname">y1</td><td>Defines uppermost bound of the number. </td></tr> <tr><td class="paramname">x2</td><td>Defines rightmost bound of the number. </td></tr> <tr><td class="paramname">y2</td><td>Defines bottommost bound of the number. </td></tr> <tr><td class="paramname">num</td><td>The number to be drawn. </td></tr> </table> </dd> </dl> <p>Definition at line <a class="el" href="pixel_8c_source.html#l00545">545</a> of file <a class="el" href="pixel_8c_source.html">pixel.c</a>.</p> <p>References <a class="el" href="pixel_8c_source.html#l00163">g15r_pixelBox()</a>.</p> <div class="fragment"><div class="line"><a name="l00546"></a><span class="lineno"> 546</span> {</div> <div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  x1 += 2;</div> <div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  x2 -= 2;</div> <div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  </div> <div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  <span class="keywordflow">switch</span>(num){</div> <div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  <span class="keywordflow">case</span> 0:</div> <div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1, y1, x2, y2 , color, 1, 1);</div> <div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1 +5, y1 +5, x2 -5, y2 - 6, 1 - color, 1, 1);</div> <div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  <span class="keywordflow">case</span> 1: </div> <div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x2-5, y1, x2, y2 , color, 1, 1);</div> <div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1, y1, x2 -5, y2, 1 - color, 1, 1);</div> <div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  <span class="keywordflow">case</span> 2:</div> <div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1, y1, x2, y2 , color, 1, 1);</div> <div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1, y1+5, x2 -5, y1+((y2/2)-3), 1 - color, 1, 1);</div> <div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1+5, y1+((y2/2)+3), x2 , y2-6, 1 - color, 1, 1);</div> <div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  <span class="keywordflow">case</span> 3:</div> <div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1, y1, x2, y2 , color, 1, 1);</div> <div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1, y1+5, x2 -5, y1+((y2/2)-3), 1 - color, 1, 1);</div> <div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1, y1+((y2/2)+3), x2-5 , y2-6, 1 - color, 1, 1);</div> <div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  <span class="keywordflow">case</span> 4:</div> <div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1, y1, x2, y2 , color, 1, 1);</div> <div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1, y1+((y2/2)+3), x2 -5, y2, 1 - color, 1, 1);</div> <div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1+5, y1, x2-5 , y1+((y2/2)-3), 1 - color, 1, 1);</div> <div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  <span class="keywordflow">case</span> 5:</div> <div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1, y1, x2, y2 , color, 1, 1);</div> <div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1+5, y1+5, x2 , y1+((y2/2)-3), 1 - color, 1, 1);</div> <div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1, y1+((y2/2)+3), x2-5 , y2-6, 1 - color, 1, 1);</div> <div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  <span class="keywordflow">case</span> 6:</div> <div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1, y1, x2, y2 , color, 1, 1);</div> <div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1+5, y1+5, x2 , y1+((y2/2)-3), 1 - color, 1, 1);</div> <div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1+5, y1+((y2/2)+3), x2-5 , y2-6, 1 - color, 1, 1);</div> <div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  <span class="keywordflow">case</span> 7:</div> <div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1, y1, x2, y2 , color, 1, 1);</div> <div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1, y1+5, x2 -5, y2, 1 - color, 1, 1);</div> <div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  <span class="keywordflow">case</span> 8:</div> <div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1, y1, x2, y2 , color, 1, 1);</div> <div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1+5, y1+5, x2-5 , y1+((y2/2)-3), 1 - color, 1, 1);</div> <div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1+5, y1+((y2/2)+3), x2-5 , y2-6, 1 - color, 1, 1);</div> <div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  <span class="keywordflow">case</span> 9:</div> <div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1, y1, x2, y2 , color, 1, 1);</div> <div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1+5, y1+5, x2-5 , y1+((y2/2)-3), 1 - color, 1, 1);</div> <div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1, y1+((y2/2)+3), x2-5 , y2, 1 - color, 1, 1);</div> <div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  <span class="keywordflow">case</span> 10: </div> <div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x2-5, y1+5, x2, y1+10 , color, 1, 1);</div> <div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x2-5, y2-10, x2, y2-5 , color, 1, 1);</div> <div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  <span class="keywordflow">case</span> 11: </div> <div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x1, y1+((y2/2)-2), x2, y1+((y2/2)+2), color, 1, 1);</div> <div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  <span class="keywordflow">case</span> 12:</div> <div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  <a class="code" href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a> (canvas, x2-5, y2-5, x2, y2 , color, 1, 1);</div> <div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  }</div> <div class="line"><a name="l00609"></a><span class="lineno"> 609</span> }</div> <div class="ttc" id="libg15render_8h_html_acc211f96c69c987736f92accf5dbd9a2"><div class="ttname"><a href="libg15render_8h.html#acc211f96c69c987736f92accf5dbd9a2">g15r_pixelBox</a></div><div class="ttdeci">void g15r_pixelBox(g15canvas *canvas, int x1, int y1, int x2, int y2, int color, int thick, int fill)</div><div class="ttdoc">Draws a box bounded by (x1, y1) and (x2, y2) </div><div class="ttdef"><b>Definition:</b> <a href="pixel_8c_source.html#l00163">pixel.c:163</a></div></div> </div><!-- fragment --> </div> </div> <a class="anchor" id="aa79609508fcd3094291adbeb042e45e8"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void g15r_drawCircle </td> <td>(</td> <td class="paramtype"><a class="el" href="structg15canvas.html">g15canvas</a> * </td> <td class="paramname"><em>canvas</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>x</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>y</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>r</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>fill</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>color</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Draws a circle centered at (x, y) with a radius of r. </p> <p>Draws a circle centered at (x, y) with a radius of r.</p> <p>The circle will be filled if fill != 0.</p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">canvas</td><td>A pointer to a <a class="el" href="structg15canvas.html" title="This structure holds the data need to render objects to the LCD screen. ">g15canvas</a> struct in which the buffer to be operated on is found. </td></tr> <tr><td class="paramname">x</td><td>Defines horizontal center of the circle. </td></tr> <tr><td class="paramname">y</td><td>Defines vertical center of circle. </td></tr> <tr><td class="paramname">r</td><td>Defines radius of circle. </td></tr> <tr><td class="paramname">fill</td><td>The circle will be filled with color if fill != 0. </td></tr> <tr><td class="paramname">color</td><td>Lines defining the circle will be drawn this color. </td></tr> </table> </dd> </dl> <p>Definition at line <a class="el" href="pixel_8c_source.html#l00203">203</a> of file <a class="el" href="pixel_8c_source.html">pixel.c</a>.</p> <p>References <a class="el" href="pixel_8c_source.html#l00099">g15r_drawLine()</a>, and <a class="el" href="screen_8c_source.html#l00050">g15r_setPixel()</a>.</p> <div class="fragment"><div class="line"><a name="l00204"></a><span class="lineno"> 204</span> {</div> <div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordtype">int</span> xx, yy, dd;</div> <div class="line"><a name="l00206"></a><span class="lineno"> 206</span> </div> <div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  xx = 0;</div> <div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  yy = r;</div> <div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  dd = 2 * (1 - r);</div> <div class="line"><a name="l00210"></a><span class="lineno"> 210</span> </div> <div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keywordflow">while</span> (yy >= 0)</div> <div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  {</div> <div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordflow">if</span> (!fill)</div> <div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  {</div> <div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <a class="code" href="libg15render_8h.html#a55ea1758ff829b3cab04383f8a5eccd4">g15r_setPixel</a> (canvas, x + xx, y - yy, color);</div> <div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <a class="code" href="libg15render_8h.html#a55ea1758ff829b3cab04383f8a5eccd4">g15r_setPixel</a> (canvas, x + xx, y + yy, color);</div> <div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <a class="code" href="libg15render_8h.html#a55ea1758ff829b3cab04383f8a5eccd4">g15r_setPixel</a> (canvas, x - xx, y - yy, color);</div> <div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <a class="code" href="libg15render_8h.html#a55ea1758ff829b3cab04383f8a5eccd4">g15r_setPixel</a> (canvas, x - xx, y + yy, color);</div> <div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  }</div> <div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">else</span></div> <div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  {</div> <div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x - xx, y - yy, x + xx, y - yy, color);</div> <div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x - xx, y + yy, x + xx, y + yy, color);</div> <div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  }</div> <div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordflow">if</span> (dd + yy > 0)</div> <div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  {</div> <div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  yy--;</div> <div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  dd = dd - (2 * yy + 1);</div> <div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  }</div> <div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keywordflow">if</span> (xx > dd)</div> <div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  {</div> <div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  xx++;</div> <div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  dd = dd + (2 * xx + 1);</div> <div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  }</div> <div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  }</div> <div class="line"><a name="l00236"></a><span class="lineno"> 236</span> }</div> <div class="ttc" id="libg15render_8h_html_a55ea1758ff829b3cab04383f8a5eccd4"><div class="ttname"><a href="libg15render_8h.html#a55ea1758ff829b3cab04383f8a5eccd4">g15r_setPixel</a></div><div class="ttdeci">void g15r_setPixel(g15canvas *canvas, unsigned int x, unsigned int y, int val)</div><div class="ttdoc">Sets the value of the pixel at (x, y) </div><div class="ttdef"><b>Definition:</b> <a href="screen_8c_source.html#l00050">screen.c:50</a></div></div> <div class="ttc" id="libg15render_8h_html_a1eaf03a62dcd91f3175bc3920cde9eb6"><div class="ttname"><a href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a></div><div class="ttdeci">void g15r_drawLine(g15canvas *canvas, int px1, int py1, int px2, int py2, const int color)</div><div class="ttdoc">Draws a line from (px1, py1) to (px2, py2) </div><div class="ttdef"><b>Definition:</b> <a href="pixel_8c_source.html#l00099">pixel.c:99</a></div></div> </div><!-- fragment --> </div> </div> <a class="anchor" id="af9c1fbc33fdcb45c32ec65794c1a84c7"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void g15r_drawIcon </td> <td>(</td> <td class="paramtype"><a class="el" href="structg15canvas.html">g15canvas</a> * </td> <td class="paramname"><em>canvas</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">char * </td> <td class="paramname"><em>buf</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>my_x</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>my_y</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>width</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>height</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Draw an icon to the screen from a wbmp buffer. </p> <p>Draw an icon to a canvas</p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">canvas</td><td>A pointer to a <a class="el" href="structg15canvas.html" title="This structure holds the data need to render objects to the LCD screen. ">g15canvas</a> struct in which the buffer to be operated in is found. </td></tr> <tr><td class="paramname">buf</td><td>A pointer to the buffer holding the icon to be displayed. </td></tr> <tr><td class="paramname">my_x</td><td>Leftmost boundary of image. </td></tr> <tr><td class="paramname">my_y</td><td>Topmost boundary of image. </td></tr> <tr><td class="paramname">width</td><td>Width of the image in buf. </td></tr> <tr><td class="paramname">height</td><td>Height of the image in buf. </td></tr> </table> </dd> </dl> <p>Definition at line <a class="el" href="pixel_8c_source.html#l00411">411</a> of file <a class="el" href="pixel_8c_source.html">pixel.c</a>.</p> <p>References <a class="el" href="libg15render_8h_source.html#l00021">BYTE_SIZE</a>, and <a class="el" href="screen_8c_source.html#l00050">g15r_setPixel()</a>.</p> <div class="fragment"><div class="line"><a name="l00412"></a><span class="lineno"> 412</span> {</div> <div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="keywordtype">int</span> y,x,val;</div> <div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pixel_offset = 0;</div> <div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> byte_offset, bit_offset;</div> <div class="line"><a name="l00416"></a><span class="lineno"> 416</span> </div> <div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="keywordflow">for</span> (y=0; y < height - 1; y++)</div> <div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="keywordflow">for</span> (x=0; x < width - 1; x++)</div> <div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  {</div> <div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  pixel_offset = y * width + x;</div> <div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  byte_offset = pixel_offset / <a class="code" href="libg15render_8h.html#a86fd4404b140711fdb77326609c0f393">BYTE_SIZE</a>;</div> <div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  bit_offset = 7 - (pixel_offset % <a class="code" href="libg15render_8h.html#a86fd4404b140711fdb77326609c0f393">BYTE_SIZE</a>);</div> <div class="line"><a name="l00423"></a><span class="lineno"> 423</span> </div> <div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  val = (buf[byte_offset] & (1 << bit_offset)) >> bit_offset;</div> <div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <a class="code" href="libg15render_8h.html#a55ea1758ff829b3cab04383f8a5eccd4">g15r_setPixel</a> (canvas, x + my_x, y + my_y, val);</div> <div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  }</div> <div class="line"><a name="l00427"></a><span class="lineno"> 427</span> }</div> <div class="ttc" id="libg15render_8h_html_a86fd4404b140711fdb77326609c0f393"><div class="ttname"><a href="libg15render_8h.html#a86fd4404b140711fdb77326609c0f393">BYTE_SIZE</a></div><div class="ttdeci">#define BYTE_SIZE</div><div class="ttdef"><b>Definition:</b> <a href="libg15render_8h_source.html#l00021">libg15render.h:21</a></div></div> <div class="ttc" id="libg15render_8h_html_a55ea1758ff829b3cab04383f8a5eccd4"><div class="ttname"><a href="libg15render_8h.html#a55ea1758ff829b3cab04383f8a5eccd4">g15r_setPixel</a></div><div class="ttdeci">void g15r_setPixel(g15canvas *canvas, unsigned int x, unsigned int y, int val)</div><div class="ttdoc">Sets the value of the pixel at (x, y) </div><div class="ttdef"><b>Definition:</b> <a href="screen_8c_source.html#l00050">screen.c:50</a></div></div> </div><!-- fragment --> </div> </div> <a class="anchor" id="a1eaf03a62dcd91f3175bc3920cde9eb6"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void g15r_drawLine </td> <td>(</td> <td class="paramtype"><a class="el" href="structg15canvas.html">g15canvas</a> * </td> <td class="paramname"><em>canvas</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>px1</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>py1</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>px2</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>py2</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const int </td> <td class="paramname"><em>color</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Draws a line from (px1, py1) to (px2, py2) </p> <p>A line of color is drawn from (px1, py1) to (px2, py2).</p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">canvas</td><td>A pointer to a <a class="el" href="structg15canvas.html" title="This structure holds the data need to render objects to the LCD screen. ">g15canvas</a> struct in which the buffer to be operated on is found. </td></tr> <tr><td class="paramname">px1</td><td>X component of point 1. </td></tr> <tr><td class="paramname">py1</td><td>Y component of point 1. </td></tr> <tr><td class="paramname">px2</td><td>X component of point 2. </td></tr> <tr><td class="paramname">py2</td><td>Y component of point 2. </td></tr> <tr><td class="paramname">color</td><td>Line will be drawn this color. </td></tr> </table> </dd> </dl> <p>Definition at line <a class="el" href="pixel_8c_source.html#l00099">99</a> of file <a class="el" href="pixel_8c_source.html">pixel.c</a>.</p> <p>References <a class="el" href="screen_8c_source.html#l00050">g15r_setPixel()</a>, and <a class="el" href="pixel_8c_source.html#l00023">swap()</a>.</p> <p>Referenced by <a class="el" href="pixel_8c_source.html#l00337">g15r_drawBar()</a>, <a class="el" href="pixel_8c_source.html#l00203">g15r_drawCircle()</a>, <a class="el" href="pixel_8c_source.html#l00252">g15r_drawRoundBox()</a>, and <a class="el" href="pixel_8c_source.html#l00163">g15r_pixelBox()</a>.</p> <div class="fragment"><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> {</div> <div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="comment">/* </span></div> <div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="comment"> * Bresenham's Line Algorithm</span></div> <div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="comment"> * http://en.wikipedia.org/wiki/Bresenham's_algorithm</span></div> <div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="comment"> */</span></div> <div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div> <div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordtype">int</span> steep = 0;</div> <div class="line"><a name="l00108"></a><span class="lineno"> 108</span> </div> <div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordflow">if</span> (abs (py2 - py1) > abs (px2 - px1))</div> <div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  steep = 1;</div> <div class="line"><a name="l00111"></a><span class="lineno"> 111</span> </div> <div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">if</span> (steep)</div> <div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  {</div> <div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <a class="code" href="pixel_8c.html#acd3415eef442ced2b5e064f95f04b624">swap</a> (&px1, &py1);</div> <div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <a class="code" href="pixel_8c.html#acd3415eef442ced2b5e064f95f04b624">swap</a> (&px2, &py2);</div> <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  }</div> <div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div> <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordflow">if</span> (px1 > px2)</div> <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  {</div> <div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <a class="code" href="pixel_8c.html#acd3415eef442ced2b5e064f95f04b624">swap</a> (&px1, &px2);</div> <div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <a class="code" href="pixel_8c.html#acd3415eef442ced2b5e064f95f04b624">swap</a> (&py1, &py2);</div> <div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  }</div> <div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div> <div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordtype">int</span> dx = px2 - px1;</div> <div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordtype">int</span> dy = abs (py2 - py1);</div> <div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div> <div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordtype">int</span> error = 0;</div> <div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordtype">int</span> y = py1;</div> <div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordtype">int</span> ystep = (py1 < py2) ? 1 : -1;</div> <div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordtype">int</span> x = 0;</div> <div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div> <div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">for</span> (x = px1; x <= px2; ++x)</div> <div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  {</div> <div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordflow">if</span> (steep)</div> <div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <a class="code" href="libg15render_8h.html#a55ea1758ff829b3cab04383f8a5eccd4">g15r_setPixel</a> (canvas, y, x, color);</div> <div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">else</span></div> <div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <a class="code" href="libg15render_8h.html#a55ea1758ff829b3cab04383f8a5eccd4">g15r_setPixel</a> (canvas, x, y, color);</div> <div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div> <div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  error += dy;</div> <div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordflow">if</span> (2 * error >= dx)</div> <div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  {</div> <div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  y += ystep;</div> <div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  error -= dx;</div> <div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  }</div> <div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  }</div> <div class="line"><a name="l00146"></a><span class="lineno"> 146</span> }</div> <div class="ttc" id="pixel_8c_html_acd3415eef442ced2b5e064f95f04b624"><div class="ttname"><a href="pixel_8c.html#acd3415eef442ced2b5e064f95f04b624">swap</a></div><div class="ttdeci">void swap(int *x, int *y)</div><div class="ttdef"><b>Definition:</b> <a href="pixel_8c_source.html#l00023">pixel.c:23</a></div></div> <div class="ttc" id="libg15render_8h_html_a55ea1758ff829b3cab04383f8a5eccd4"><div class="ttname"><a href="libg15render_8h.html#a55ea1758ff829b3cab04383f8a5eccd4">g15r_setPixel</a></div><div class="ttdeci">void g15r_setPixel(g15canvas *canvas, unsigned int x, unsigned int y, int val)</div><div class="ttdoc">Sets the value of the pixel at (x, y) </div><div class="ttdef"><b>Definition:</b> <a href="screen_8c_source.html#l00050">screen.c:50</a></div></div> </div><!-- fragment --> </div> </div> <a class="anchor" id="a3549ddf1007d917e0e054fb453db9cca"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void g15r_drawRoundBox </td> <td>(</td> <td class="paramtype"><a class="el" href="structg15canvas.html">g15canvas</a> * </td> <td class="paramname"><em>canvas</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>x1</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>y1</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>x2</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>y2</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>fill</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>color</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Draws a box with rounded corners bounded by (x1, y1) and (x2, y2) </p> <p>Draws a rounded box around the area bounded by (x1, y1) and (x2, y2).</p> <p>The box will be filled if fill != 0.</p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">canvas</td><td>A pointer to a <a class="el" href="structg15canvas.html" title="This structure holds the data need to render objects to the LCD screen. ">g15canvas</a> struct in which the buffer to be operated on is found. </td></tr> <tr><td class="paramname">x1</td><td>Defines leftmost bound of the box. </td></tr> <tr><td class="paramname">y1</td><td>Defines uppermost bound of the box. </td></tr> <tr><td class="paramname">x2</td><td>Defines rightmost bound of the box. </td></tr> <tr><td class="paramname">y2</td><td>Defines bottommost bound of the box. </td></tr> <tr><td class="paramname">fill</td><td>The box will be filled with color if fill != 0. </td></tr> <tr><td class="paramname">color</td><td>Lines defining the box will be drawn this color. </td></tr> </table> </dd> </dl> <p>Definition at line <a class="el" href="pixel_8c_source.html#l00252">252</a> of file <a class="el" href="pixel_8c_source.html">pixel.c</a>.</p> <p>References <a class="el" href="libg15render_8h_source.html#l00027">G15_COLOR_BLACK</a>, <a class="el" href="libg15render_8h_source.html#l00026">G15_COLOR_WHITE</a>, <a class="el" href="pixel_8c_source.html#l00099">g15r_drawLine()</a>, and <a class="el" href="screen_8c_source.html#l00050">g15r_setPixel()</a>.</p> <div class="fragment"><div class="line"><a name="l00254"></a><span class="lineno"> 254</span> {</div> <div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordtype">int</span> y, shave = 3;</div> <div class="line"><a name="l00256"></a><span class="lineno"> 256</span> </div> <div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="keywordflow">if</span> (shave > (x2 - x1) / 2)</div> <div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  shave = (x2 - x1) / 2;</div> <div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordflow">if</span> (shave > (y2 - y1) / 2)</div> <div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  shave = (y2 - y1) / 2;</div> <div class="line"><a name="l00261"></a><span class="lineno"> 261</span> </div> <div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keywordflow">if</span> ((x1 != x2) && (y1 != y2))</div> <div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  {</div> <div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="keywordflow">if</span> (fill)</div> <div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  {</div> <div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x1 + shave, y1, x2 - shave, y1, color);</div> <div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="keywordflow">for</span> (y = y1 + 1; y < y1 + shave; y++)</div> <div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x1 + 1, y, x2 - 1, y, color);</div> <div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="keywordflow">for</span> (y = y1 + shave; y <= y2 - shave; y++)</div> <div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x1, y, x2, y, color);</div> <div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="keywordflow">for</span> (y = y2 - shave + 1; y < y2; y++)</div> <div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x1 + 1, y, x2 - 1, y, color);</div> <div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x1 + shave, y2, x2 - shave, y2, color);</div> <div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keywordflow">if</span> (shave == 4)</div> <div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  {</div> <div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <a class="code" href="libg15render_8h.html#a55ea1758ff829b3cab04383f8a5eccd4">g15r_setPixel</a> (canvas, x1 + 1, y1 + 1,</div> <div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  color ==</div> <div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <a class="code" href="libg15render_8h.html#aa4d92d49730a1444bdcaacf176ec4c32">G15_COLOR_WHITE</a> ? <a class="code" href="libg15render_8h.html#a0104fffa824becaf3a200cccc8a79c14">G15_COLOR_BLACK</a> :</div> <div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <a class="code" href="libg15render_8h.html#aa4d92d49730a1444bdcaacf176ec4c32">G15_COLOR_WHITE</a>);</div> <div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <a class="code" href="libg15render_8h.html#a55ea1758ff829b3cab04383f8a5eccd4">g15r_setPixel</a> (canvas, x1 + 1, y2 - 1,</div> <div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  color ==</div> <div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <a class="code" href="libg15render_8h.html#aa4d92d49730a1444bdcaacf176ec4c32">G15_COLOR_WHITE</a> ? <a class="code" href="libg15render_8h.html#a0104fffa824becaf3a200cccc8a79c14">G15_COLOR_BLACK</a> :</div> <div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <a class="code" href="libg15render_8h.html#aa4d92d49730a1444bdcaacf176ec4c32">G15_COLOR_WHITE</a>);</div> <div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <a class="code" href="libg15render_8h.html#a55ea1758ff829b3cab04383f8a5eccd4">g15r_setPixel</a> (canvas, x2 - 1, y1 + 1,</div> <div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  color ==</div> <div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <a class="code" href="libg15render_8h.html#aa4d92d49730a1444bdcaacf176ec4c32">G15_COLOR_WHITE</a> ? <a class="code" href="libg15render_8h.html#a0104fffa824becaf3a200cccc8a79c14">G15_COLOR_BLACK</a> :</div> <div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <a class="code" href="libg15render_8h.html#aa4d92d49730a1444bdcaacf176ec4c32">G15_COLOR_WHITE</a>);</div> <div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <a class="code" href="libg15render_8h.html#a55ea1758ff829b3cab04383f8a5eccd4">g15r_setPixel</a> (canvas, x2 - 1, y2 - 1,</div> <div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  color ==</div> <div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <a class="code" href="libg15render_8h.html#aa4d92d49730a1444bdcaacf176ec4c32">G15_COLOR_WHITE</a> ? <a class="code" href="libg15render_8h.html#a0104fffa824becaf3a200cccc8a79c14">G15_COLOR_BLACK</a> :</div> <div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <a class="code" href="libg15render_8h.html#aa4d92d49730a1444bdcaacf176ec4c32">G15_COLOR_WHITE</a>);</div> <div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  }</div> <div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  }</div> <div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="keywordflow">else</span></div> <div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  {</div> <div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x1 + shave, y1, x2 - shave, y1, color);</div> <div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x1, y1 + shave, x1, y2 - shave, color);</div> <div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x2, y1 + shave, x2, y2 - shave, color);</div> <div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x1 + shave, y2, x2 - shave, y2, color);</div> <div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="keywordflow">if</span> (shave > 1)</div> <div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  {</div> <div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x1 + 1, y1 + 1, x1 + shave - 1, y1 + 1,</div> <div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  color);</div> <div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x2 - shave + 1, y1 + 1, x2 - 1, y1 + 1,</div> <div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  color);</div> <div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x1 + 1, y2 - 1, x1 + shave - 1, y2 - 1,</div> <div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  color);</div> <div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x2 - shave + 1, y2 - 1, x2 - 1, y2 - 1,</div> <div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  color);</div> <div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x1 + 1, y1 + 1, x1 + 1, y1 + shave - 1,</div> <div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  color);</div> <div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x1 + 1, y2 - 1, x1 + 1, y2 - shave + 1,</div> <div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  color);</div> <div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x2 - 1, y1 + 1, x2 - 1, y1 + shave - 1,</div> <div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  color);</div> <div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x2 - 1, y2 - 1, x2 - 1, y2 - shave + 1,</div> <div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  color);</div> <div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  }</div> <div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  }</div> <div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  }</div> <div class="line"><a name="l00321"></a><span class="lineno"> 321</span> }</div> <div class="ttc" id="libg15render_8h_html_a0104fffa824becaf3a200cccc8a79c14"><div class="ttname"><a href="libg15render_8h.html#a0104fffa824becaf3a200cccc8a79c14">G15_COLOR_BLACK</a></div><div class="ttdeci">#define G15_COLOR_BLACK</div><div class="ttdef"><b>Definition:</b> <a href="libg15render_8h_source.html#l00027">libg15render.h:27</a></div></div> <div class="ttc" id="libg15render_8h_html_aa4d92d49730a1444bdcaacf176ec4c32"><div class="ttname"><a href="libg15render_8h.html#aa4d92d49730a1444bdcaacf176ec4c32">G15_COLOR_WHITE</a></div><div class="ttdeci">#define G15_COLOR_WHITE</div><div class="ttdef"><b>Definition:</b> <a href="libg15render_8h_source.html#l00026">libg15render.h:26</a></div></div> <div class="ttc" id="libg15render_8h_html_a55ea1758ff829b3cab04383f8a5eccd4"><div class="ttname"><a href="libg15render_8h.html#a55ea1758ff829b3cab04383f8a5eccd4">g15r_setPixel</a></div><div class="ttdeci">void g15r_setPixel(g15canvas *canvas, unsigned int x, unsigned int y, int val)</div><div class="ttdoc">Sets the value of the pixel at (x, y) </div><div class="ttdef"><b>Definition:</b> <a href="screen_8c_source.html#l00050">screen.c:50</a></div></div> <div class="ttc" id="libg15render_8h_html_a1eaf03a62dcd91f3175bc3920cde9eb6"><div class="ttname"><a href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a></div><div class="ttdeci">void g15r_drawLine(g15canvas *canvas, int px1, int py1, int px2, int py2, const int color)</div><div class="ttdoc">Draws a line from (px1, py1) to (px2, py2) </div><div class="ttdef"><b>Definition:</b> <a href="pixel_8c_source.html#l00099">pixel.c:99</a></div></div> </div><!-- fragment --> </div> </div> <a class="anchor" id="a961a7736a4c98480d3d7cc551a579f8b"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void g15r_drawSprite </td> <td>(</td> <td class="paramtype"><a class="el" href="structg15canvas.html">g15canvas</a> * </td> <td class="paramname"><em>canvas</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">char * </td> <td class="paramname"><em>buf</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>my_x</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>my_y</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>width</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>height</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>start_x</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>start_y</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>total_width</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Draw a sprite to the screen from a wbmp buffer. </p> <p>Draw a sprite to a canvas</p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">canvas</td><td>A pointer to a <a class="el" href="structg15canvas.html" title="This structure holds the data need to render objects to the LCD screen. ">g15canvas</a> struct in which the buffer to be operated in is found. </td></tr> <tr><td class="paramname">buf</td><td>A pointer to the buffer holding a set of sprites. </td></tr> <tr><td class="paramname">my_x</td><td>Leftmost boundary of image. </td></tr> <tr><td class="paramname">my_y</td><td>Topmost boundary of image. </td></tr> <tr><td class="paramname">width</td><td>Width of the sprite. </td></tr> <tr><td class="paramname">height</td><td>Height of the sprite. </td></tr> <tr><td class="paramname">start_x</td><td>X offset for reading sprite from buf. </td></tr> <tr><td class="paramname">start_y</td><td>Y offset for reading sprite from buf. </td></tr> <tr><td class="paramname">total_width</td><td>Width of the set of sprites held in buf. </td></tr> </table> </dd> </dl> <p>Definition at line <a class="el" href="pixel_8c_source.html#l00443">443</a> of file <a class="el" href="pixel_8c_source.html">pixel.c</a>.</p> <p>References <a class="el" href="libg15render_8h_source.html#l00021">BYTE_SIZE</a>, and <a class="el" href="screen_8c_source.html#l00050">g15r_setPixel()</a>.</p> <div class="fragment"><div class="line"><a name="l00444"></a><span class="lineno"> 444</span> {</div> <div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <span class="keywordtype">int</span> y,x,val;</div> <div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pixel_offset = 0;</div> <div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> byte_offset, bit_offset;</div> <div class="line"><a name="l00448"></a><span class="lineno"> 448</span> </div> <div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  <span class="keywordflow">for</span> (y=0; y < height - 1; y++)</div> <div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  <span class="keywordflow">for</span> (x=0; x < width - 1; x++)</div> <div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  {</div> <div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  pixel_offset = (y + start_y) * total_width + (x + start_x);</div> <div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  byte_offset = pixel_offset / <a class="code" href="libg15render_8h.html#a86fd4404b140711fdb77326609c0f393">BYTE_SIZE</a>;</div> <div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  bit_offset = 7 - (pixel_offset % <a class="code" href="libg15render_8h.html#a86fd4404b140711fdb77326609c0f393">BYTE_SIZE</a>);</div> <div class="line"><a name="l00455"></a><span class="lineno"> 455</span> </div> <div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  val = (buf[byte_offset] & (1 << bit_offset)) >> bit_offset;</div> <div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <a class="code" href="libg15render_8h.html#a55ea1758ff829b3cab04383f8a5eccd4">g15r_setPixel</a> (canvas, x + my_x, y + my_y, val);</div> <div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  }</div> <div class="line"><a name="l00459"></a><span class="lineno"> 459</span> }</div> <div class="ttc" id="libg15render_8h_html_a86fd4404b140711fdb77326609c0f393"><div class="ttname"><a href="libg15render_8h.html#a86fd4404b140711fdb77326609c0f393">BYTE_SIZE</a></div><div class="ttdeci">#define BYTE_SIZE</div><div class="ttdef"><b>Definition:</b> <a href="libg15render_8h_source.html#l00021">libg15render.h:21</a></div></div> <div class="ttc" id="libg15render_8h_html_a55ea1758ff829b3cab04383f8a5eccd4"><div class="ttname"><a href="libg15render_8h.html#a55ea1758ff829b3cab04383f8a5eccd4">g15r_setPixel</a></div><div class="ttdeci">void g15r_setPixel(g15canvas *canvas, unsigned int x, unsigned int y, int val)</div><div class="ttdoc">Sets the value of the pixel at (x, y) </div><div class="ttdef"><b>Definition:</b> <a href="screen_8c_source.html#l00050">screen.c:50</a></div></div> </div><!-- fragment --> </div> </div> <a class="anchor" id="a1cd9b26679257b0f0d6a18abb161200b"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int g15r_loadWbmpSplash </td> <td>(</td> <td class="paramtype"><a class="el" href="structg15canvas.html">g15canvas</a> * </td> <td class="paramname"><em>canvas</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">char * </td> <td class="paramname"><em>filename</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Draw a splash screen from 160x43 wbmp file. </p> <p>wbmp splash screen loader - assumes image is 160x43</p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">canvas</td><td>A pointer to a <a class="el" href="structg15canvas.html" title="This structure holds the data need to render objects to the LCD screen. ">g15canvas</a> struct in which the buffer to be operated on is found. </td></tr> <tr><td class="paramname">filename</td><td>A string holding the path to the wbmp to be displayed. </td></tr> </table> </dd> </dl> <p>Definition at line <a class="el" href="pixel_8c_source.html#l00387">387</a> of file <a class="el" href="pixel_8c_source.html">pixel.c</a>.</p> <p>References <a class="el" href="libg15render_8h_source.html#l00039">g15canvas::buffer</a>, <a class="el" href="libg15render_8h_source.html#l00022">G15_BUFFER_LEN</a>, and <a class="el" href="pixel_8c_source.html#l00469">g15r_loadWbmpToBuf()</a>.</p> <div class="fragment"><div class="line"><a name="l00388"></a><span class="lineno"> 388</span> {</div> <div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="keywordtype">int</span> width=0, height=0;</div> <div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <span class="keywordtype">char</span> *buf;</div> <div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  </div> <div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  buf = <a class="code" href="libg15render_8h.html#ad10d3e2fe33419cefbf9e6b8fc06e9c8">g15r_loadWbmpToBuf</a>(filename,</div> <div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  &width,</div> <div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  &height);</div> <div class="line"><a name="l00395"></a><span class="lineno"> 395</span> </div> <div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  memcpy (canvas-><a class="code" href="structg15canvas.html#a4216bb87453363bae6c4418583015e76">buffer</a>, buf, <a class="code" href="libg15render_8h.html#abe1086e7ddda5f7600019031f76fb7b6">G15_BUFFER_LEN</a>);</div> <div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <span class="keywordflow">return</span> 0;</div> <div class="line"><a name="l00398"></a><span class="lineno"> 398</span> }</div> <div class="ttc" id="structg15canvas_html_a4216bb87453363bae6c4418583015e76"><div class="ttname"><a href="structg15canvas.html#a4216bb87453363bae6c4418583015e76">g15canvas::buffer</a></div><div class="ttdeci">unsigned char buffer[G15_BUFFER_LEN]</div><div class="ttdef"><b>Definition:</b> <a href="libg15render_8h_source.html#l00039">libg15render.h:39</a></div></div> <div class="ttc" id="libg15render_8h_html_abe1086e7ddda5f7600019031f76fb7b6"><div class="ttname"><a href="libg15render_8h.html#abe1086e7ddda5f7600019031f76fb7b6">G15_BUFFER_LEN</a></div><div class="ttdeci">#define G15_BUFFER_LEN</div><div class="ttdef"><b>Definition:</b> <a href="libg15render_8h_source.html#l00022">libg15render.h:22</a></div></div> <div class="ttc" id="libg15render_8h_html_ad10d3e2fe33419cefbf9e6b8fc06e9c8"><div class="ttname"><a href="libg15render_8h.html#ad10d3e2fe33419cefbf9e6b8fc06e9c8">g15r_loadWbmpToBuf</a></div><div class="ttdeci">char * g15r_loadWbmpToBuf(char *filename, int *img_width, int *img_height)</div><div class="ttdoc">Load a wbmp file into a buffer. </div><div class="ttdef"><b>Definition:</b> <a href="pixel_8c_source.html#l00469">pixel.c:469</a></div></div> </div><!-- fragment --> </div> </div> <a class="anchor" id="ad10d3e2fe33419cefbf9e6b8fc06e9c8"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">char* g15r_loadWbmpToBuf </td> <td>(</td> <td class="paramtype">char * </td> <td class="paramname"><em>filename</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int * </td> <td class="paramname"><em>img_width</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int * </td> <td class="paramname"><em>img_height</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Load a wbmp file into a buffer. </p> <p>basic wbmp loader - loads a wbmp image into a buffer.</p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">filename</td><td>A string holding the path to the wbmp to be loaded. </td></tr> <tr><td class="paramname">img_width</td><td>A pointer to an int that will hold the image width on return. </td></tr> <tr><td class="paramname">img_height</td><td>A pointer to an int that will hold the image height on return. </td></tr> </table> </dd> </dl> <p>Definition at line <a class="el" href="pixel_8c_source.html#l00469">469</a> of file <a class="el" href="pixel_8c_source.html">pixel.c</a>.</p> <p>References <a class="el" href="libg15render_8h_source.html#l00021">BYTE_SIZE</a>.</p> <p>Referenced by <a class="el" href="pixel_8c_source.html#l00387">g15r_loadWbmpSplash()</a>.</p> <div class="fragment"><div class="line"><a name="l00470"></a><span class="lineno"> 470</span> {</div> <div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  <span class="keywordtype">int</span> wbmp_fd;</div> <div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <span class="keywordtype">int</span> retval;</div> <div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <span class="keywordtype">int</span> x,y,val;</div> <div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  <span class="keywordtype">char</span> *buf;</div> <div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> buflen,header=4;</div> <div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> headerbytes[5];</div> <div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pixel_offset = 0;</div> <div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> byte_offset, bit_offset;</div> <div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  </div> <div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  wbmp_fd=open(filename,O_RDONLY);</div> <div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  <span class="keywordflow">if</span>(!wbmp_fd){</div> <div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  <span class="keywordflow">return</span> NULL;</div> <div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  }</div> <div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  </div> <div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  retval=read(wbmp_fd,headerbytes,5);</div> <div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  </div> <div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  <span class="keywordflow">if</span>(retval){</div> <div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  <span class="keywordflow">if</span> (headerbytes[2] & 1) {</div> <div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  *img_width = ((<span class="keywordtype">unsigned</span> char)headerbytes[2] ^ 1) | (<span class="keywordtype">unsigned</span> char)headerbytes[3];</div> <div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  *img_height = headerbytes[4];</div> <div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  header = 5;</div> <div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  } <span class="keywordflow">else</span> {</div> <div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  *img_width = headerbytes[2];</div> <div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  *img_height = headerbytes[3];</div> <div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  }</div> <div class="line"><a name="l00496"></a><span class="lineno"> 496</span> </div> <div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  <span class="keywordtype">int</span> byte_width = *img_width / 8;</div> <div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  <span class="keywordflow">if</span> (*img_width %8)</div> <div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  byte_width++;</div> <div class="line"><a name="l00500"></a><span class="lineno"> 500</span> </div> <div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  buflen = byte_width * (*img_height);</div> <div class="line"><a name="l00502"></a><span class="lineno"> 502</span> </div> <div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  buf = (<span class="keywordtype">char</span> *)malloc (buflen);</div> <div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  <span class="keywordflow">if</span> (buf == NULL)</div> <div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  <span class="keywordflow">return</span> NULL;</div> <div class="line"><a name="l00506"></a><span class="lineno"> 506</span> </div> <div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  <span class="keywordflow">if</span> (header == 4)</div> <div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  buf[0]=headerbytes[4];</div> <div class="line"><a name="l00509"></a><span class="lineno"> 509</span> </div> <div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  retval=read(wbmp_fd,buf+(5-header),buflen);</div> <div class="line"><a name="l00511"></a><span class="lineno"> 511</span> </div> <div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  close(wbmp_fd);</div> <div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  }</div> <div class="line"><a name="l00514"></a><span class="lineno"> 514</span> </div> <div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  <span class="comment">/* now invert the image */</span></div> <div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  <span class="keywordflow">for</span> (y = 0; y < *img_height; y++)</div> <div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  <span class="keywordflow">for</span> (x = 0; x < *img_width; x++)</div> <div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  {</div> <div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  pixel_offset = y * (*img_width) + x;</div> <div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  byte_offset = pixel_offset / <a class="code" href="libg15render_8h.html#a86fd4404b140711fdb77326609c0f393">BYTE_SIZE</a>;</div> <div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  bit_offset = 7 - (pixel_offset % <a class="code" href="libg15render_8h.html#a86fd4404b140711fdb77326609c0f393">BYTE_SIZE</a>);</div> <div class="line"><a name="l00522"></a><span class="lineno"> 522</span> </div> <div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  val = (buf[byte_offset] & (1 << bit_offset)) >> bit_offset;</div> <div class="line"><a name="l00524"></a><span class="lineno"> 524</span> </div> <div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  <span class="keywordflow">if</span> (!val)</div> <div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  buf[byte_offset] = buf[byte_offset] | 1 << bit_offset;</div> <div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  <span class="keywordflow">else</span></div> <div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  buf[byte_offset] = buf[byte_offset] & ~(1 << bit_offset);</div> <div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  }</div> <div class="line"><a name="l00530"></a><span class="lineno"> 530</span> </div> <div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  <span class="keywordflow">return</span> buf;</div> <div class="line"><a name="l00532"></a><span class="lineno"> 532</span> }</div> <div class="ttc" id="libg15render_8h_html_a86fd4404b140711fdb77326609c0f393"><div class="ttname"><a href="libg15render_8h.html#a86fd4404b140711fdb77326609c0f393">BYTE_SIZE</a></div><div class="ttdeci">#define BYTE_SIZE</div><div class="ttdef"><b>Definition:</b> <a href="libg15render_8h_source.html#l00021">libg15render.h:21</a></div></div> </div><!-- fragment --> </div> </div> <a class="anchor" id="acc211f96c69c987736f92accf5dbd9a2"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void g15r_pixelBox </td> <td>(</td> <td class="paramtype"><a class="el" href="structg15canvas.html">g15canvas</a> * </td> <td class="paramname"><em>canvas</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>x1</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>y1</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>x2</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>y2</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>color</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>thick</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>fill</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Draws a box bounded by (x1, y1) and (x2, y2) </p> <p>Draws a box around the area bounded by (x1, y1) and (x2, y2).</p> <p>The box will be filled if fill != 0 and the sides will be thick pixels wide.</p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">canvas</td><td>A pointer to a <a class="el" href="structg15canvas.html" title="This structure holds the data need to render objects to the LCD screen. ">g15canvas</a> struct in which the buffer to be operated on is found. </td></tr> <tr><td class="paramname">x1</td><td>Defines leftmost bound of the box. </td></tr> <tr><td class="paramname">y1</td><td>Defines uppermost bound of the box. </td></tr> <tr><td class="paramname">x2</td><td>Defines rightmost bound of the box. </td></tr> <tr><td class="paramname">y2</td><td>Defines bottommost bound of the box. </td></tr> <tr><td class="paramname">color</td><td>Lines defining the box will be drawn this color. </td></tr> <tr><td class="paramname">thick</td><td>Lines defining the box will be this many pixels thick. </td></tr> <tr><td class="paramname">fill</td><td>The box will be filled with color if fill != 0. </td></tr> </table> </dd> </dl> <p>Definition at line <a class="el" href="pixel_8c_source.html#l00163">163</a> of file <a class="el" href="pixel_8c_source.html">pixel.c</a>.</p> <p>References <a class="el" href="pixel_8c_source.html#l00099">g15r_drawLine()</a>, and <a class="el" href="screen_8c_source.html#l00050">g15r_setPixel()</a>.</p> <p>Referenced by <a class="el" href="pixel_8c_source.html#l00337">g15r_drawBar()</a>, and <a class="el" href="pixel_8c_source.html#l00545">g15r_drawBigNum()</a>.</p> <div class="fragment"><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> {</div> <div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordtype">int</span> i = 0;</div> <div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">for</span> (i = 0; i < thick; ++i)</div> <div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  {</div> <div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x1, y1, x2, y1, color); <span class="comment">/* Top */</span></div> <div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x1, y1, x1, y2, color); <span class="comment">/* Left */</span></div> <div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x2, y1, x2, y2, color); <span class="comment">/* Right */</span></div> <div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <a class="code" href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a> (canvas, x1, y2, x2, y2, color); <span class="comment">/* Bottom */</span></div> <div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  x1++;</div> <div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  y1++;</div> <div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  x2--;</div> <div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  y2--;</div> <div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  }</div> <div class="line"><a name="l00178"></a><span class="lineno"> 178</span> </div> <div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordtype">int</span> x = 0, y = 0;</div> <div class="line"><a name="l00180"></a><span class="lineno"> 180</span> </div> <div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordflow">if</span> (fill)</div> <div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  {</div> <div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordflow">for</span> (x = x1; x <= x2; ++x)</div> <div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keywordflow">for</span> (y = y1; y <= y2; ++y)</div> <div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <a class="code" href="libg15render_8h.html#a55ea1758ff829b3cab04383f8a5eccd4">g15r_setPixel</a> (canvas, x, y, color);</div> <div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  }</div> <div class="line"><a name="l00187"></a><span class="lineno"> 187</span> </div> <div class="line"><a name="l00188"></a><span class="lineno"> 188</span> }</div> <div class="ttc" id="libg15render_8h_html_a55ea1758ff829b3cab04383f8a5eccd4"><div class="ttname"><a href="libg15render_8h.html#a55ea1758ff829b3cab04383f8a5eccd4">g15r_setPixel</a></div><div class="ttdeci">void g15r_setPixel(g15canvas *canvas, unsigned int x, unsigned int y, int val)</div><div class="ttdoc">Sets the value of the pixel at (x, y) </div><div class="ttdef"><b>Definition:</b> <a href="screen_8c_source.html#l00050">screen.c:50</a></div></div> <div class="ttc" id="libg15render_8h_html_a1eaf03a62dcd91f3175bc3920cde9eb6"><div class="ttname"><a href="libg15render_8h.html#a1eaf03a62dcd91f3175bc3920cde9eb6">g15r_drawLine</a></div><div class="ttdeci">void g15r_drawLine(g15canvas *canvas, int px1, int py1, int px2, int py2, const int color)</div><div class="ttdoc">Draws a line from (px1, py1) to (px2, py2) </div><div class="ttdef"><b>Definition:</b> <a href="pixel_8c_source.html#l00099">pixel.c:99</a></div></div> </div><!-- fragment --> </div> </div> <a class="anchor" id="a6ab0fe17fbd5f010981fa9596ff3aca6"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void g15r_pixelOverlay </td> <td>(</td> <td class="paramtype"><a class="el" href="structg15canvas.html">g15canvas</a> * </td> <td class="paramname"><em>canvas</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>x1</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>y1</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>width</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>height</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">short </td> <td class="paramname"><em>colormap</em>[] </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Overlays a bitmap of size width x height starting at (x1, y1) </p> <p>A 1-bit bitmap defined in colormap[] is drawn to the canvas with an upper left corner at (x1, y1) and a lower right corner at (x1+width, y1+height).</p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">canvas</td><td>A pointer to a <a class="el" href="structg15canvas.html" title="This structure holds the data need to render objects to the LCD screen. ">g15canvas</a> struct in which the buffer to be operated on is found. </td></tr> <tr><td class="paramname">x1</td><td>Defines the leftmost bound of the area to be drawn. </td></tr> <tr><td class="paramname">y1</td><td>Defines the uppermost bound of the area to be drawn. </td></tr> <tr><td class="paramname">width</td><td>Defines the width of the bitmap to be drawn. </td></tr> <tr><td class="paramname">height</td><td>Defines the height of the bitmap to be drawn. </td></tr> <tr><td class="paramname">colormap</td><td>An array containing width*height entries of value 0 for pixel off or != 0 for pixel on. </td></tr> </table> </dd> </dl> <p>Definition at line <a class="el" href="pixel_8c_source.html#l00074">74</a> of file <a class="el" href="pixel_8c_source.html">pixel.c</a>.</p> <p>References <a class="el" href="libg15render_8h_source.html#l00027">G15_COLOR_BLACK</a>, <a class="el" href="libg15render_8h_source.html#l00026">G15_COLOR_WHITE</a>, and <a class="el" href="screen_8c_source.html#l00050">g15r_setPixel()</a>.</p> <div class="fragment"><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> {</div> <div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordtype">int</span> i = 0;</div> <div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div> <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordflow">for</span> (i = 0; i < (width * height); ++i)</div> <div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  {</div> <div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordtype">int</span> color = (colormap[i] ? <a class="code" href="libg15render_8h.html#a0104fffa824becaf3a200cccc8a79c14">G15_COLOR_BLACK</a> : <a class="code" href="libg15render_8h.html#aa4d92d49730a1444bdcaacf176ec4c32">G15_COLOR_WHITE</a>);</div> <div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordtype">int</span> x = x1 + i % width;</div> <div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordtype">int</span> y = y1 + i / width;</div> <div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <a class="code" href="libg15render_8h.html#a55ea1758ff829b3cab04383f8a5eccd4">g15r_setPixel</a> (canvas, x, y, color);</div> <div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  }</div> <div class="line"><a name="l00086"></a><span class="lineno"> 86</span> }</div> <div class="ttc" id="libg15render_8h_html_a0104fffa824becaf3a200cccc8a79c14"><div class="ttname"><a href="libg15render_8h.html#a0104fffa824becaf3a200cccc8a79c14">G15_COLOR_BLACK</a></div><div class="ttdeci">#define G15_COLOR_BLACK</div><div class="ttdef"><b>Definition:</b> <a href="libg15render_8h_source.html#l00027">libg15render.h:27</a></div></div> <div class="ttc" id="libg15render_8h_html_aa4d92d49730a1444bdcaacf176ec4c32"><div class="ttname"><a href="libg15render_8h.html#aa4d92d49730a1444bdcaacf176ec4c32">G15_COLOR_WHITE</a></div><div class="ttdeci">#define G15_COLOR_WHITE</div><div class="ttdef"><b>Definition:</b> <a href="libg15render_8h_source.html#l00026">libg15render.h:26</a></div></div> <div class="ttc" id="libg15render_8h_html_a55ea1758ff829b3cab04383f8a5eccd4"><div class="ttname"><a href="libg15render_8h.html#a55ea1758ff829b3cab04383f8a5eccd4">g15r_setPixel</a></div><div class="ttdeci">void g15r_setPixel(g15canvas *canvas, unsigned int x, unsigned int y, int val)</div><div class="ttdoc">Sets the value of the pixel at (x, y) </div><div class="ttdef"><b>Definition:</b> <a href="screen_8c_source.html#l00050">screen.c:50</a></div></div> </div><!-- fragment --> </div> </div> <a class="anchor" id="a9f04b45ebf46f039d77d236a2de69d25"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void g15r_pixelReverseFill </td> <td>(</td> <td class="paramtype"><a class="el" href="structg15canvas.html">g15canvas</a> * </td> <td class="paramname"><em>canvas</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>x1</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>y1</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>x2</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>y2</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>fill</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>color</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Fills an area bounded by (x1, y1) and (x2, y2) </p> <p>The area with an upper left corner at (x1, y1) and lower right corner at (x2, y2) will be filled with color if fill>0 or the current contents of the area will be reversed if fill==0.</p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">canvas</td><td>A pointer to a <a class="el" href="structg15canvas.html" title="This structure holds the data need to render objects to the LCD screen. ">g15canvas</a> struct in which the buffer to be operated on is found. </td></tr> <tr><td class="paramname">x1</td><td>Defines leftmost bound of area to be filled. </td></tr> <tr><td class="paramname">y1</td><td>Defines uppermost bound of area to be filled. </td></tr> <tr><td class="paramname">x2</td><td>Defines rightmost bound of area to be filled. </td></tr> <tr><td class="paramname">y2</td><td>Defines bottommost bound of area to be filled. </td></tr> <tr><td class="paramname">fill</td><td>Area will be filled with color if fill != 0, else contents of area will have color values reversed. </td></tr> <tr><td class="paramname">color</td><td>If fill != 0, then area will be filled if color == 1 and emptied if color == 0. </td></tr> </table> </dd> </dl> <p>Definition at line <a class="el" href="pixel_8c_source.html#l00045">45</a> of file <a class="el" href="pixel_8c_source.html">pixel.c</a>.</p> <p>References <a class="el" href="screen_8c_source.html#l00029">g15r_getPixel()</a>, and <a class="el" href="screen_8c_source.html#l00050">g15r_setPixel()</a>.</p> <div class="fragment"><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> {</div> <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordtype">int</span> x = 0;</div> <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordtype">int</span> y = 0;</div> <div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div> <div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordflow">for</span> (x = x1; x <= x2; ++x)</div> <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  {</div> <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordflow">for</span> (y = y1; y <= y2; ++y)</div> <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  {</div> <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordflow">if</span> (!fill)</div> <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  color = !<a class="code" href="libg15render_8h.html#ab71c2319a2892031f45c7cb685387d76">g15r_getPixel</a> (canvas, x, y);</div> <div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <a class="code" href="libg15render_8h.html#a55ea1758ff829b3cab04383f8a5eccd4">g15r_setPixel</a> (canvas, x, y, color);</div> <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  }</div> <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  }</div> <div class="line"><a name="l00060"></a><span class="lineno"> 60</span> }</div> <div class="ttc" id="libg15render_8h_html_ab71c2319a2892031f45c7cb685387d76"><div class="ttname"><a href="libg15render_8h.html#ab71c2319a2892031f45c7cb685387d76">g15r_getPixel</a></div><div class="ttdeci">int g15r_getPixel(g15canvas *canvas, unsigned int x, unsigned int y)</div><div class="ttdoc">Gets the value of the pixel at (x, y) </div><div class="ttdef"><b>Definition:</b> <a href="screen_8c_source.html#l00029">screen.c:29</a></div></div> <div class="ttc" id="libg15render_8h_html_a55ea1758ff829b3cab04383f8a5eccd4"><div class="ttname"><a href="libg15render_8h.html#a55ea1758ff829b3cab04383f8a5eccd4">g15r_setPixel</a></div><div class="ttdeci">void g15r_setPixel(g15canvas *canvas, unsigned int x, unsigned int y, int val)</div><div class="ttdoc">Sets the value of the pixel at (x, y) </div><div class="ttdef"><b>Definition:</b> <a href="screen_8c_source.html#l00050">screen.c:50</a></div></div> </div><!-- fragment --> </div> </div> <a class="anchor" id="acd3415eef442ced2b5e064f95f04b624"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void swap </td> <td>(</td> <td class="paramtype">int * </td> <td class="paramname"><em>x</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int * </td> <td class="paramname"><em>y</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Definition at line <a class="el" href="pixel_8c_source.html#l00023">23</a> of file <a class="el" href="pixel_8c_source.html">pixel.c</a>.</p> <p>Referenced by <a class="el" href="pixel_8c_source.html#l00099">g15r_drawLine()</a>.</p> <div class="fragment"><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> {</div> <div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="keywordtype">int</span> tmp;</div> <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div> <div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  tmp = *x;</div> <div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  *x = *y;</div> <div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  *y = tmp;</div> <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> }</div> </div><!-- fragment --> </div> </div> </div><!-- contents --> </div><!-- doc-content --> <!-- start footer part --> <div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> <ul> <li class="navelem"><a class="el" href="pixel_8c.html">pixel.c</a></li> <li class="footer">Generated on Tue Oct 22 2013 07:42:17 for libg15render by <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.5 </li> </ul> </div> </body> </html>