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<h1>pixel.c File Reference</h1><code>#include <fcntl.h></code><br>
<code>#include "<a class="el" href="libg15render_8h_source.html">libg15render.h</a>"</code><br>
<p>
<a href="pixel_8c_source.html">Go to the source code of this file.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#6d4ffa4ef254051c9b3673169ffc1b95">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><td class="mdescLeft"> </td><td class="mdescRight">Draws a completion bar. <a href="#6d4ffa4ef254051c9b3673169ffc1b95"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#c63ee87144faa97be6173eb28974dc9b">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><td class="mdescLeft"> </td><td class="mdescRight">Draw a large number. <a href="#c63ee87144faa97be6173eb28974dc9b"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#a79609508fcd3094291adbeb042e45e8">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><td class="mdescLeft"> </td><td class="mdescRight">Draws a circle centered at (x, y) with a radius of r. <a href="#a79609508fcd3094291adbeb042e45e8"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#f9c1fbc33fdcb45c32ec65794c1a84c7">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><td class="mdescLeft"> </td><td class="mdescRight">Draw an icon to the screen from a wbmp buffer. <a href="#f9c1fbc33fdcb45c32ec65794c1a84c7"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#1eaf03a62dcd91f3175bc3920cde9eb6">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><td class="mdescLeft"> </td><td class="mdescRight">Draws a line from (px1, py1) to (px2, py2). <a href="#1eaf03a62dcd91f3175bc3920cde9eb6"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#3549ddf1007d917e0e054fb453db9cca">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><td class="mdescLeft"> </td><td class="mdescRight">Draws a box with rounded corners bounded by (x1, y1) and (x2, y2). <a href="#3549ddf1007d917e0e054fb453db9cca"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#961a7736a4c98480d3d7cc551a579f8b">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><td class="mdescLeft"> </td><td class="mdescRight">Draw a sprite to the screen from a wbmp buffer. <a href="#961a7736a4c98480d3d7cc551a579f8b"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#1cd9b26679257b0f0d6a18abb161200b">g15r_loadWbmpSplash</a> (<a class="el" href="structg15canvas.html">g15canvas</a> *canvas, char *filename)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Draw a splash screen from 160x43 wbmp file. <a href="#1cd9b26679257b0f0d6a18abb161200b"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">char * </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#d10d3e2fe33419cefbf9e6b8fc06e9c8">g15r_loadWbmpToBuf</a> (char *filename, int *img_width, int *img_height)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Load a wbmp file into a buffer. <a href="#d10d3e2fe33419cefbf9e6b8fc06e9c8"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#cc211f96c69c987736f92accf5dbd9a2">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><td class="mdescLeft"> </td><td class="mdescRight">Draws a box bounded by (x1, y1) and (x2, y2). <a href="#cc211f96c69c987736f92accf5dbd9a2"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#6ab0fe17fbd5f010981fa9596ff3aca6">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><td class="mdescLeft"> </td><td class="mdescRight">Overlays a bitmap of size width x height starting at (x1, y1). <a href="#6ab0fe17fbd5f010981fa9596ff3aca6"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#9f04b45ebf46f039d77d236a2de69d25">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><td class="mdescLeft"> </td><td class="mdescRight">Fills an area bounded by (x1, y1) and (x2, y2). <a href="#9f04b45ebf46f039d77d236a2de69d25"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="pixel_8c.html#cd3415eef442ced2b5e064f95f04b624">swap</a> (int *x, int *y)</td></tr>
</table>
<hr><h2>Function Documentation</h2>
<a class="anchor" name="6d4ffa4ef254051c9b3673169ffc1b95"></a><!-- doxytag: member="pixel.c::g15r_drawBar" ref="6d4ffa4ef254051c9b3673169ffc1b95" args="(g15canvas *canvas, int x1, int y1, int x2, int y2, int color, int num, int max, int type)" -->
<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><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Draws a completion bar.
<p>
Given a maximum value, and a value between 0 and that maximum value, calculate and draw a bar showing that percentage.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>canvas</em> </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 valign="top"></td><td valign="top"><em>x1</em> </td><td>Defines leftmost bound of the bar. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>y1</em> </td><td>Defines uppermost bound of the bar. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>x2</em> </td><td>Defines rightmost bound of the bar. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>y2</em> </td><td>Defines bottommost bound of the bar. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>color</em> </td><td>The bar will be drawn this color. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>num</em> </td><td>Number of units relative to max filled. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>max</em> </td><td>Number of units equal to 100% filled. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>type</em> </td><td>Type of bar. 1=solid bar, 2=solid bar with border, 3 = solid bar with I-frame. </td></tr>
</table>
</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"><pre class="fragment"><a name="l00339"></a>00339 {
<a name="l00340"></a>00340 <span class="keywordtype">float</span> len, length;
<a name="l00341"></a>00341 <span class="keywordtype">int</span> x;
<a name="l00342"></a>00342 <span class="keywordflow">if</span> (max == 0)
<a name="l00343"></a>00343 <span class="keywordflow">return</span>;
<a name="l00344"></a>00344 <span class="keywordflow">if</span> (num > max)
<a name="l00345"></a>00345 num = max;
<a name="l00346"></a>00346
<a name="l00347"></a>00347 <span class="keywordflow">if</span> (type == 2)
<a name="l00348"></a>00348 {
<a name="l00349"></a>00349 y1 += 2;
<a name="l00350"></a>00350 y2 -= 2;
<a name="l00351"></a>00351 x1 += 2;
<a name="l00352"></a>00352 x2 -= 2;
<a name="l00353"></a>00353 }
<a name="l00354"></a>00354
<a name="l00355"></a>00355 len = ((float) max / (<span class="keywordtype">float</span>) num);
<a name="l00356"></a>00356 length = (x2 - x1) / len;
<a name="l00357"></a>00357
<a name="l00358"></a>00358 <span class="keywordflow">if</span> (type == 1)
<a name="l00359"></a>00359 {
<a name="l00360"></a>00360 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1, y1 - type, x2, y2 + type, color ^ 1, 1, 1);
<a name="l00361"></a>00361 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1, y1 - type, x2, y2 + type, color, 1, 0);
<a name="l00362"></a>00362 }
<a name="l00363"></a>00363 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (type == 2)
<a name="l00364"></a>00364 {
<a name="l00365"></a>00365 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1 - 2, y1 - type, x2 + 2, y2 + type, color ^ 1,
<a name="l00366"></a>00366 1, 1);
<a name="l00367"></a>00367 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1 - 2, y1 - type, x2 + 2, y2 + type, color, 1,
<a name="l00368"></a>00368 0);
<a name="l00369"></a>00369 }
<a name="l00370"></a>00370 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (type == 3)
<a name="l00371"></a>00371 {
<a name="l00372"></a>00372 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x1, y1 - type, x1, y2 + type, color);
<a name="l00373"></a>00373 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x2, y1 - type, x2, y2 + type, color);
<a name="l00374"></a>00374 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x1, y1 + ((y2 - y1) / 2), x2,
<a name="l00375"></a>00375 y1 + ((y2 - y1) / 2), color);
<a name="l00376"></a>00376 }
<a name="l00377"></a>00377 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1, y1, (<span class="keywordtype">int</span>) ceil (x1 + length), y2, color, 1, 1);
<a name="l00378"></a>00378 }
</pre></div>
<p>
</div>
</div><p>
<a class="anchor" name="c63ee87144faa97be6173eb28974dc9b"></a><!-- doxytag: member="pixel.c::g15r_drawBigNum" ref="c63ee87144faa97be6173eb28974dc9b" args="(g15canvas *canvas, unsigned int x1, unsigned int y1, unsigned int x2, unsigned int y2, int color, int num)" -->
<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><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Draw a large number.
<p>
Draw a large number to a canvas<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>canvas</em> </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 valign="top"></td><td valign="top"><em>x1</em> </td><td>Defines leftmost bound of the number. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>y1</em> </td><td>Defines uppermost bound of the number. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>x2</em> </td><td>Defines rightmost bound of the number. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>y2</em> </td><td>Defines bottommost bound of the number. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>num</em> </td><td>The number to be drawn. </td></tr>
</table>
</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"><pre class="fragment"><a name="l00546"></a>00546 {
<a name="l00547"></a>00547 x1 += 2;
<a name="l00548"></a>00548 x2 -= 2;
<a name="l00549"></a>00549
<a name="l00550"></a>00550 <span class="keywordflow">switch</span>(num){
<a name="l00551"></a>00551 <span class="keywordflow">case</span> 0:
<a name="l00552"></a>00552 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1, y1, x2, y2 , color, 1, 1);
<a name="l00553"></a>00553 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1 +5, y1 +5, x2 -5, y2 - 6, 1 - color, 1, 1);
<a name="l00554"></a>00554 <span class="keywordflow">break</span>;
<a name="l00555"></a>00555 <span class="keywordflow">case</span> 1:
<a name="l00556"></a>00556 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x2-5, y1, x2, y2 , color, 1, 1);
<a name="l00557"></a>00557 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1, y1, x2 -5, y2, 1 - color, 1, 1);
<a name="l00558"></a>00558 <span class="keywordflow">break</span>;
<a name="l00559"></a>00559 <span class="keywordflow">case</span> 2:
<a name="l00560"></a>00560 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1, y1, x2, y2 , color, 1, 1);
<a name="l00561"></a>00561 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1, y1+5, x2 -5, y1+((y2/2)-3), 1 - color, 1, 1);
<a name="l00562"></a>00562 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1+5, y1+((y2/2)+3), x2 , y2-6, 1 - color, 1, 1);
<a name="l00563"></a>00563 <span class="keywordflow">break</span>;
<a name="l00564"></a>00564 <span class="keywordflow">case</span> 3:
<a name="l00565"></a>00565 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1, y1, x2, y2 , color, 1, 1);
<a name="l00566"></a>00566 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1, y1+5, x2 -5, y1+((y2/2)-3), 1 - color, 1, 1);
<a name="l00567"></a>00567 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1, y1+((y2/2)+3), x2-5 , y2-6, 1 - color, 1, 1);
<a name="l00568"></a>00568 <span class="keywordflow">break</span>;
<a name="l00569"></a>00569 <span class="keywordflow">case</span> 4:
<a name="l00570"></a>00570 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1, y1, x2, y2 , color, 1, 1);
<a name="l00571"></a>00571 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1, y1+((y2/2)+3), x2 -5, y2, 1 - color, 1, 1);
<a name="l00572"></a>00572 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1+5, y1, x2-5 , y1+((y2/2)-3), 1 - color, 1, 1);
<a name="l00573"></a>00573 <span class="keywordflow">break</span>;
<a name="l00574"></a>00574 <span class="keywordflow">case</span> 5:
<a name="l00575"></a>00575 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1, y1, x2, y2 , color, 1, 1);
<a name="l00576"></a>00576 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1+5, y1+5, x2 , y1+((y2/2)-3), 1 - color, 1, 1);
<a name="l00577"></a>00577 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1, y1+((y2/2)+3), x2-5 , y2-6, 1 - color, 1, 1);
<a name="l00578"></a>00578 <span class="keywordflow">break</span>;
<a name="l00579"></a>00579 <span class="keywordflow">case</span> 6:
<a name="l00580"></a>00580 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1, y1, x2, y2 , color, 1, 1);
<a name="l00581"></a>00581 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1+5, y1+5, x2 , y1+((y2/2)-3), 1 - color, 1, 1);
<a name="l00582"></a>00582 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1+5, y1+((y2/2)+3), x2-5 , y2-6, 1 - color, 1, 1);
<a name="l00583"></a>00583 <span class="keywordflow">break</span>;
<a name="l00584"></a>00584 <span class="keywordflow">case</span> 7:
<a name="l00585"></a>00585 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1, y1, x2, y2 , color, 1, 1);
<a name="l00586"></a>00586 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1, y1+5, x2 -5, y2, 1 - color, 1, 1);
<a name="l00587"></a>00587 <span class="keywordflow">break</span>;
<a name="l00588"></a>00588 <span class="keywordflow">case</span> 8:
<a name="l00589"></a>00589 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1, y1, x2, y2 , color, 1, 1);
<a name="l00590"></a>00590 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1+5, y1+5, x2-5 , y1+((y2/2)-3), 1 - color, 1, 1);
<a name="l00591"></a>00591 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1+5, y1+((y2/2)+3), x2-5 , y2-6, 1 - color, 1, 1);
<a name="l00592"></a>00592 <span class="keywordflow">break</span>;
<a name="l00593"></a>00593 <span class="keywordflow">case</span> 9:
<a name="l00594"></a>00594 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1, y1, x2, y2 , color, 1, 1);
<a name="l00595"></a>00595 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1+5, y1+5, x2-5 , y1+((y2/2)-3), 1 - color, 1, 1);
<a name="l00596"></a>00596 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1, y1+((y2/2)+3), x2-5 , y2, 1 - color, 1, 1);
<a name="l00597"></a>00597 <span class="keywordflow">break</span>;
<a name="l00598"></a>00598 <span class="keywordflow">case</span> 10:
<a name="l00599"></a>00599 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x2-5, y1+5, x2, y1+10 , color, 1, 1);
<a name="l00600"></a>00600 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x2-5, y2-10, x2, y2-5 , color, 1, 1);
<a name="l00601"></a>00601 <span class="keywordflow">break</span>;
<a name="l00602"></a>00602 <span class="keywordflow">case</span> 11:
<a name="l00603"></a>00603 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x1, y1+((y2/2)-2), x2, y1+((y2/2)+2), color, 1, 1);
<a name="l00604"></a>00604 <span class="keywordflow">break</span>;
<a name="l00605"></a>00605 <span class="keywordflow">case</span> 12:
<a name="l00606"></a>00606 <a class="code" href="libg15render_8h.html#cc211f96c69c987736f92accf5dbd9a2" title="Draws a box bounded by (x1, y1) and (x2, y2).">g15r_pixelBox</a> (canvas, x2-5, y2-5, x2, y2 , color, 1, 1);
<a name="l00607"></a>00607 <span class="keywordflow">break</span>;
<a name="l00608"></a>00608 }
<a name="l00609"></a>00609 }
</pre></div>
<p>
</div>
</div><p>
<a class="anchor" name="a79609508fcd3094291adbeb042e45e8"></a><!-- doxytag: member="pixel.c::g15r_drawCircle" ref="a79609508fcd3094291adbeb042e45e8" args="(g15canvas *canvas, int x, int y, int r, int fill, int color)" -->
<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><td> </td>
</tr>
<tr>
<td></td>
<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>
Draws a circle centered at (x, y) with a radius of r.<p>
The circle will be filled if fill != 0.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>canvas</em> </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 valign="top"></td><td valign="top"><em>x</em> </td><td>Defines horizontal center of the circle. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>y</em> </td><td>Defines vertical center of circle. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>r</em> </td><td>Defines radius of circle. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>fill</em> </td><td>The circle will be filled with color if fill != 0. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>color</em> </td><td>Lines defining the circle will be drawn this color. </td></tr>
</table>
</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"><pre class="fragment"><a name="l00204"></a>00204 {
<a name="l00205"></a>00205 <span class="keywordtype">int</span> xx, yy, dd;
<a name="l00206"></a>00206
<a name="l00207"></a>00207 xx = 0;
<a name="l00208"></a>00208 yy = r;
<a name="l00209"></a>00209 dd = 2 * (1 - r);
<a name="l00210"></a>00210
<a name="l00211"></a>00211 <span class="keywordflow">while</span> (yy >= 0)
<a name="l00212"></a>00212 {
<a name="l00213"></a>00213 <span class="keywordflow">if</span> (!fill)
<a name="l00214"></a>00214 {
<a name="l00215"></a>00215 <a class="code" href="libg15render_8h.html#55ea1758ff829b3cab04383f8a5eccd4" title="Sets the value of the pixel at (x, y).">g15r_setPixel</a> (canvas, x + xx, y - yy, color);
<a name="l00216"></a>00216 <a class="code" href="libg15render_8h.html#55ea1758ff829b3cab04383f8a5eccd4" title="Sets the value of the pixel at (x, y).">g15r_setPixel</a> (canvas, x + xx, y + yy, color);
<a name="l00217"></a>00217 <a class="code" href="libg15render_8h.html#55ea1758ff829b3cab04383f8a5eccd4" title="Sets the value of the pixel at (x, y).">g15r_setPixel</a> (canvas, x - xx, y - yy, color);
<a name="l00218"></a>00218 <a class="code" href="libg15render_8h.html#55ea1758ff829b3cab04383f8a5eccd4" title="Sets the value of the pixel at (x, y).">g15r_setPixel</a> (canvas, x - xx, y + yy, color);
<a name="l00219"></a>00219 }
<a name="l00220"></a>00220 <span class="keywordflow">else</span>
<a name="l00221"></a>00221 {
<a name="l00222"></a>00222 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x - xx, y - yy, x + xx, y - yy, color);
<a name="l00223"></a>00223 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x - xx, y + yy, x + xx, y + yy, color);
<a name="l00224"></a>00224 }
<a name="l00225"></a>00225 <span class="keywordflow">if</span> (dd + yy > 0)
<a name="l00226"></a>00226 {
<a name="l00227"></a>00227 yy--;
<a name="l00228"></a>00228 dd = dd - (2 * yy + 1);
<a name="l00229"></a>00229 }
<a name="l00230"></a>00230 <span class="keywordflow">if</span> (xx > dd)
<a name="l00231"></a>00231 {
<a name="l00232"></a>00232 xx++;
<a name="l00233"></a>00233 dd = dd + (2 * xx + 1);
<a name="l00234"></a>00234 }
<a name="l00235"></a>00235 }
<a name="l00236"></a>00236 }
</pre></div>
<p>
</div>
</div><p>
<a class="anchor" name="f9c1fbc33fdcb45c32ec65794c1a84c7"></a><!-- doxytag: member="pixel.c::g15r_drawIcon" ref="f9c1fbc33fdcb45c32ec65794c1a84c7" args="(g15canvas *canvas, char *buf, int my_x, int my_y, int width, int height)" -->
<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><td> </td>
</tr>
<tr>
<td></td>
<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>
Draw an icon to a canvas<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>canvas</em> </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 valign="top"></td><td valign="top"><em>buf</em> </td><td>A pointer to the buffer holding the icon to be displayed. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>my_x</em> </td><td>Leftmost boundary of image. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>my_y</em> </td><td>Topmost boundary of image. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>width</em> </td><td>Width of the image in buf. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>height</em> </td><td>Height of the image in buf. </td></tr>
</table>
</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"><pre class="fragment"><a name="l00412"></a>00412 {
<a name="l00413"></a>00413 <span class="keywordtype">int</span> y,x,val;
<a name="l00414"></a>00414 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pixel_offset = 0;
<a name="l00415"></a>00415 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> byte_offset, bit_offset;
<a name="l00416"></a>00416
<a name="l00417"></a>00417 <span class="keywordflow">for</span> (y=0; y < height - 1; y++)
<a name="l00418"></a>00418 <span class="keywordflow">for</span> (x=0; x < width - 1; x++)
<a name="l00419"></a>00419 {
<a name="l00420"></a>00420 pixel_offset = y * width + x;
<a name="l00421"></a>00421 byte_offset = pixel_offset / <a class="code" href="libg15render_8h.html#86fd4404b140711fdb77326609c0f393">BYTE_SIZE</a>;
<a name="l00422"></a>00422 bit_offset = 7 - (pixel_offset % <a class="code" href="libg15render_8h.html#86fd4404b140711fdb77326609c0f393">BYTE_SIZE</a>);
<a name="l00423"></a>00423
<a name="l00424"></a>00424 val = (buf[byte_offset] & (1 << bit_offset)) >> bit_offset;
<a name="l00425"></a>00425 <a class="code" href="libg15render_8h.html#55ea1758ff829b3cab04383f8a5eccd4" title="Sets the value of the pixel at (x, y).">g15r_setPixel</a> (canvas, x + my_x, y + my_y, val);
<a name="l00426"></a>00426 }
<a name="l00427"></a>00427 }
</pre></div>
<p>
</div>
</div><p>
<a class="anchor" name="1eaf03a62dcd91f3175bc3920cde9eb6"></a><!-- doxytag: member="pixel.c::g15r_drawLine" ref="1eaf03a62dcd91f3175bc3920cde9eb6" args="(g15canvas *canvas, int px1, int py1, int px2, int py2, const int color)" -->
<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><td> </td>
</tr>
<tr>
<td></td>
<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>
A line of color is drawn from (px1, py1) to (px2, py2).<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>canvas</em> </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 valign="top"></td><td valign="top"><em>px1</em> </td><td>X component of point 1. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>py1</em> </td><td>Y component of point 1. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>px2</em> </td><td>X component of point 2. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>py2</em> </td><td>Y component of point 2. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>color</em> </td><td>Line will be drawn this color. </td></tr>
</table>
</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"><pre class="fragment"><a name="l00101"></a>00101 {
<a name="l00102"></a>00102 <span class="comment">/* </span>
<a name="l00103"></a>00103 <span class="comment"> * Bresenham's Line Algorithm</span>
<a name="l00104"></a>00104 <span class="comment"> * http://en.wikipedia.org/wiki/Bresenham's_algorithm</span>
<a name="l00105"></a>00105 <span class="comment"> */</span>
<a name="l00106"></a>00106
<a name="l00107"></a>00107 <span class="keywordtype">int</span> steep = 0;
<a name="l00108"></a>00108
<a name="l00109"></a>00109 <span class="keywordflow">if</span> (abs (py2 - py1) > abs (px2 - px1))
<a name="l00110"></a>00110 steep = 1;
<a name="l00111"></a>00111
<a name="l00112"></a>00112 <span class="keywordflow">if</span> (steep)
<a name="l00113"></a>00113 {
<a name="l00114"></a>00114 <a class="code" href="pixel_8c.html#cd3415eef442ced2b5e064f95f04b624">swap</a> (&px1, &py1);
<a name="l00115"></a>00115 <a class="code" href="pixel_8c.html#cd3415eef442ced2b5e064f95f04b624">swap</a> (&px2, &py2);
<a name="l00116"></a>00116 }
<a name="l00117"></a>00117
<a name="l00118"></a>00118 <span class="keywordflow">if</span> (px1 > px2)
<a name="l00119"></a>00119 {
<a name="l00120"></a>00120 <a class="code" href="pixel_8c.html#cd3415eef442ced2b5e064f95f04b624">swap</a> (&px1, &px2);
<a name="l00121"></a>00121 <a class="code" href="pixel_8c.html#cd3415eef442ced2b5e064f95f04b624">swap</a> (&py1, &py2);
<a name="l00122"></a>00122 }
<a name="l00123"></a>00123
<a name="l00124"></a>00124 <span class="keywordtype">int</span> dx = px2 - px1;
<a name="l00125"></a>00125 <span class="keywordtype">int</span> dy = abs (py2 - py1);
<a name="l00126"></a>00126
<a name="l00127"></a>00127 <span class="keywordtype">int</span> error = 0;
<a name="l00128"></a>00128 <span class="keywordtype">int</span> y = py1;
<a name="l00129"></a>00129 <span class="keywordtype">int</span> ystep = (py1 < py2) ? 1 : -1;
<a name="l00130"></a>00130 <span class="keywordtype">int</span> x = 0;
<a name="l00131"></a>00131
<a name="l00132"></a>00132 <span class="keywordflow">for</span> (x = px1; x <= px2; ++x)
<a name="l00133"></a>00133 {
<a name="l00134"></a>00134 <span class="keywordflow">if</span> (steep)
<a name="l00135"></a>00135 <a class="code" href="libg15render_8h.html#55ea1758ff829b3cab04383f8a5eccd4" title="Sets the value of the pixel at (x, y).">g15r_setPixel</a> (canvas, y, x, color);
<a name="l00136"></a>00136 <span class="keywordflow">else</span>
<a name="l00137"></a>00137 <a class="code" href="libg15render_8h.html#55ea1758ff829b3cab04383f8a5eccd4" title="Sets the value of the pixel at (x, y).">g15r_setPixel</a> (canvas, x, y, color);
<a name="l00138"></a>00138
<a name="l00139"></a>00139 error += dy;
<a name="l00140"></a>00140 <span class="keywordflow">if</span> (2 * error >= dx)
<a name="l00141"></a>00141 {
<a name="l00142"></a>00142 y += ystep;
<a name="l00143"></a>00143 error -= dx;
<a name="l00144"></a>00144 }
<a name="l00145"></a>00145 }
<a name="l00146"></a>00146 }
</pre></div>
<p>
</div>
</div><p>
<a class="anchor" name="3549ddf1007d917e0e054fb453db9cca"></a><!-- doxytag: member="pixel.c::g15r_drawRoundBox" ref="3549ddf1007d917e0e054fb453db9cca" args="(g15canvas *canvas, int x1, int y1, int x2, int y2, int fill, int color)" -->
<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><td> </td>
</tr>
<tr>
<td></td>
<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>
Draws a rounded box around the area bounded by (x1, y1) and (x2, y2).<p>
The box will be filled if fill != 0.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>canvas</em> </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 valign="top"></td><td valign="top"><em>x1</em> </td><td>Defines leftmost bound of the box. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>y1</em> </td><td>Defines uppermost bound of the box. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>x2</em> </td><td>Defines rightmost bound of the box. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>y2</em> </td><td>Defines bottommost bound of the box. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>fill</em> </td><td>The box will be filled with color if fill != 0. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>color</em> </td><td>Lines defining the box will be drawn this color. </td></tr>
</table>
</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"><pre class="fragment"><a name="l00254"></a>00254 {
<a name="l00255"></a>00255 <span class="keywordtype">int</span> y, shave = 3;
<a name="l00256"></a>00256
<a name="l00257"></a>00257 <span class="keywordflow">if</span> (shave > (x2 - x1) / 2)
<a name="l00258"></a>00258 shave = (x2 - x1) / 2;
<a name="l00259"></a>00259 <span class="keywordflow">if</span> (shave > (y2 - y1) / 2)
<a name="l00260"></a>00260 shave = (y2 - y1) / 2;
<a name="l00261"></a>00261
<a name="l00262"></a>00262 <span class="keywordflow">if</span> ((x1 != x2) && (y1 != y2))
<a name="l00263"></a>00263 {
<a name="l00264"></a>00264 <span class="keywordflow">if</span> (fill)
<a name="l00265"></a>00265 {
<a name="l00266"></a>00266 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x1 + shave, y1, x2 - shave, y1, color);
<a name="l00267"></a>00267 <span class="keywordflow">for</span> (y = y1 + 1; y < y1 + shave; y++)
<a name="l00268"></a>00268 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x1 + 1, y, x2 - 1, y, color);
<a name="l00269"></a>00269 <span class="keywordflow">for</span> (y = y1 + shave; y <= y2 - shave; y++)
<a name="l00270"></a>00270 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x1, y, x2, y, color);
<a name="l00271"></a>00271 <span class="keywordflow">for</span> (y = y2 - shave + 1; y < y2; y++)
<a name="l00272"></a>00272 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x1 + 1, y, x2 - 1, y, color);
<a name="l00273"></a>00273 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x1 + shave, y2, x2 - shave, y2, color);
<a name="l00274"></a>00274 <span class="keywordflow">if</span> (shave == 4)
<a name="l00275"></a>00275 {
<a name="l00276"></a>00276 <a class="code" href="libg15render_8h.html#55ea1758ff829b3cab04383f8a5eccd4" title="Sets the value of the pixel at (x, y).">g15r_setPixel</a> (canvas, x1 + 1, y1 + 1,
<a name="l00277"></a>00277 color ==
<a name="l00278"></a>00278 <a class="code" href="libg15render_8h.html#a4d92d49730a1444bdcaacf176ec4c32">G15_COLOR_WHITE</a> ? <a class="code" href="libg15render_8h.html#0104fffa824becaf3a200cccc8a79c14">G15_COLOR_BLACK</a> :
<a name="l00279"></a>00279 <a class="code" href="libg15render_8h.html#a4d92d49730a1444bdcaacf176ec4c32">G15_COLOR_WHITE</a>);
<a name="l00280"></a>00280 <a class="code" href="libg15render_8h.html#55ea1758ff829b3cab04383f8a5eccd4" title="Sets the value of the pixel at (x, y).">g15r_setPixel</a> (canvas, x1 + 1, y2 - 1,
<a name="l00281"></a>00281 color ==
<a name="l00282"></a>00282 <a class="code" href="libg15render_8h.html#a4d92d49730a1444bdcaacf176ec4c32">G15_COLOR_WHITE</a> ? <a class="code" href="libg15render_8h.html#0104fffa824becaf3a200cccc8a79c14">G15_COLOR_BLACK</a> :
<a name="l00283"></a>00283 <a class="code" href="libg15render_8h.html#a4d92d49730a1444bdcaacf176ec4c32">G15_COLOR_WHITE</a>);
<a name="l00284"></a>00284 <a class="code" href="libg15render_8h.html#55ea1758ff829b3cab04383f8a5eccd4" title="Sets the value of the pixel at (x, y).">g15r_setPixel</a> (canvas, x2 - 1, y1 + 1,
<a name="l00285"></a>00285 color ==
<a name="l00286"></a>00286 <a class="code" href="libg15render_8h.html#a4d92d49730a1444bdcaacf176ec4c32">G15_COLOR_WHITE</a> ? <a class="code" href="libg15render_8h.html#0104fffa824becaf3a200cccc8a79c14">G15_COLOR_BLACK</a> :
<a name="l00287"></a>00287 <a class="code" href="libg15render_8h.html#a4d92d49730a1444bdcaacf176ec4c32">G15_COLOR_WHITE</a>);
<a name="l00288"></a>00288 <a class="code" href="libg15render_8h.html#55ea1758ff829b3cab04383f8a5eccd4" title="Sets the value of the pixel at (x, y).">g15r_setPixel</a> (canvas, x2 - 1, y2 - 1,
<a name="l00289"></a>00289 color ==
<a name="l00290"></a>00290 <a class="code" href="libg15render_8h.html#a4d92d49730a1444bdcaacf176ec4c32">G15_COLOR_WHITE</a> ? <a class="code" href="libg15render_8h.html#0104fffa824becaf3a200cccc8a79c14">G15_COLOR_BLACK</a> :
<a name="l00291"></a>00291 <a class="code" href="libg15render_8h.html#a4d92d49730a1444bdcaacf176ec4c32">G15_COLOR_WHITE</a>);
<a name="l00292"></a>00292 }
<a name="l00293"></a>00293 }
<a name="l00294"></a>00294 <span class="keywordflow">else</span>
<a name="l00295"></a>00295 {
<a name="l00296"></a>00296 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x1 + shave, y1, x2 - shave, y1, color);
<a name="l00297"></a>00297 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x1, y1 + shave, x1, y2 - shave, color);
<a name="l00298"></a>00298 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x2, y1 + shave, x2, y2 - shave, color);
<a name="l00299"></a>00299 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x1 + shave, y2, x2 - shave, y2, color);
<a name="l00300"></a>00300 <span class="keywordflow">if</span> (shave > 1)
<a name="l00301"></a>00301 {
<a name="l00302"></a>00302 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x1 + 1, y1 + 1, x1 + shave - 1, y1 + 1,
<a name="l00303"></a>00303 color);
<a name="l00304"></a>00304 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x2 - shave + 1, y1 + 1, x2 - 1, y1 + 1,
<a name="l00305"></a>00305 color);
<a name="l00306"></a>00306 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x1 + 1, y2 - 1, x1 + shave - 1, y2 - 1,
<a name="l00307"></a>00307 color);
<a name="l00308"></a>00308 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x2 - shave + 1, y2 - 1, x2 - 1, y2 - 1,
<a name="l00309"></a>00309 color);
<a name="l00310"></a>00310 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x1 + 1, y1 + 1, x1 + 1, y1 + shave - 1,
<a name="l00311"></a>00311 color);
<a name="l00312"></a>00312 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x1 + 1, y2 - 1, x1 + 1, y2 - shave + 1,
<a name="l00313"></a>00313 color);
<a name="l00314"></a>00314 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x2 - 1, y1 + 1, x2 - 1, y1 + shave - 1,
<a name="l00315"></a>00315 color);
<a name="l00316"></a>00316 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x2 - 1, y2 - 1, x2 - 1, y2 - shave + 1,
<a name="l00317"></a>00317 color);
<a name="l00318"></a>00318 }
<a name="l00319"></a>00319 }
<a name="l00320"></a>00320 }
<a name="l00321"></a>00321 }
</pre></div>
<p>
</div>
</div><p>
<a class="anchor" name="961a7736a4c98480d3d7cc551a579f8b"></a><!-- doxytag: member="pixel.c::g15r_drawSprite" ref="961a7736a4c98480d3d7cc551a579f8b" args="(g15canvas *canvas, char *buf, int my_x, int my_y, int width, int height, int start_x, int start_y, int total_width)" -->
<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><td> </td>
</tr>
<tr>
<td></td>
<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>
Draw a sprite to a canvas<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>canvas</em> </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 valign="top"></td><td valign="top"><em>buf</em> </td><td>A pointer to the buffer holding a set of sprites. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>my_x</em> </td><td>Leftmost boundary of image. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>my_y</em> </td><td>Topmost boundary of image. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>width</em> </td><td>Width of the sprite. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>height</em> </td><td>Height of the sprite. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>start_x</em> </td><td>X offset for reading sprite from buf. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>start_y</em> </td><td>Y offset for reading sprite from buf. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>total_width</em> </td><td>Width of the set of sprites held in buf. </td></tr>
</table>
</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"><pre class="fragment"><a name="l00444"></a>00444 {
<a name="l00445"></a>00445 <span class="keywordtype">int</span> y,x,val;
<a name="l00446"></a>00446 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pixel_offset = 0;
<a name="l00447"></a>00447 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> byte_offset, bit_offset;
<a name="l00448"></a>00448
<a name="l00449"></a>00449 <span class="keywordflow">for</span> (y=0; y < height - 1; y++)
<a name="l00450"></a>00450 <span class="keywordflow">for</span> (x=0; x < width - 1; x++)
<a name="l00451"></a>00451 {
<a name="l00452"></a>00452 pixel_offset = (y + start_y) * total_width + (x + start_x);
<a name="l00453"></a>00453 byte_offset = pixel_offset / <a class="code" href="libg15render_8h.html#86fd4404b140711fdb77326609c0f393">BYTE_SIZE</a>;
<a name="l00454"></a>00454 bit_offset = 7 - (pixel_offset % <a class="code" href="libg15render_8h.html#86fd4404b140711fdb77326609c0f393">BYTE_SIZE</a>);
<a name="l00455"></a>00455
<a name="l00456"></a>00456 val = (buf[byte_offset] & (1 << bit_offset)) >> bit_offset;
<a name="l00457"></a>00457 <a class="code" href="libg15render_8h.html#55ea1758ff829b3cab04383f8a5eccd4" title="Sets the value of the pixel at (x, y).">g15r_setPixel</a> (canvas, x + my_x, y + my_y, val);
<a name="l00458"></a>00458 }
<a name="l00459"></a>00459 }
</pre></div>
<p>
</div>
</div><p>
<a class="anchor" name="1cd9b26679257b0f0d6a18abb161200b"></a><!-- doxytag: member="pixel.c::g15r_loadWbmpSplash" ref="1cd9b26679257b0f0d6a18abb161200b" args="(g15canvas *canvas, char *filename)" -->
<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><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Draw a splash screen from 160x43 wbmp file.
<p>
wbmp splash screen loader - assumes image is 160x43<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>canvas</em> </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 valign="top"></td><td valign="top"><em>filename</em> </td><td>A string holding the path to the wbmp to be displayed. </td></tr>
</table>
</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"><pre class="fragment"><a name="l00388"></a>00388 {
<a name="l00389"></a>00389 <span class="keywordtype">int</span> width=0, height=0;
<a name="l00390"></a>00390 <span class="keywordtype">char</span> *buf;
<a name="l00391"></a>00391
<a name="l00392"></a>00392 buf = <a class="code" href="libg15render_8h.html#d10d3e2fe33419cefbf9e6b8fc06e9c8" title="Load a wbmp file into a buffer.">g15r_loadWbmpToBuf</a>(filename,
<a name="l00393"></a>00393 &width,
<a name="l00394"></a>00394 &height);
<a name="l00395"></a>00395
<a name="l00396"></a>00396 memcpy (canvas-><a class="code" href="structg15canvas.html#4216bb87453363bae6c4418583015e76">buffer</a>, buf, <a class="code" href="libg15render_8h.html#be1086e7ddda5f7600019031f76fb7b6">G15_BUFFER_LEN</a>);
<a name="l00397"></a>00397 <span class="keywordflow">return</span> 0;
<a name="l00398"></a>00398 }
</pre></div>
<p>
</div>
</div><p>
<a class="anchor" name="d10d3e2fe33419cefbf9e6b8fc06e9c8"></a><!-- doxytag: member="pixel.c::g15r_loadWbmpToBuf" ref="d10d3e2fe33419cefbf9e6b8fc06e9c8" args="(char *filename, int *img_width, int *img_height)" -->
<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><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Load a wbmp file into a buffer.
<p>
basic wbmp loader - loads a wbmp image into a buffer.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>filename</em> </td><td>A string holding the path to the wbmp to be loaded. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>img_width</em> </td><td>A pointer to an int that will hold the image width on return. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>img_height</em> </td><td>A pointer to an int that will hold the image height on return. </td></tr>
</table>
</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"><pre class="fragment"><a name="l00470"></a>00470 {
<a name="l00471"></a>00471 <span class="keywordtype">int</span> wbmp_fd;
<a name="l00472"></a>00472 <span class="keywordtype">int</span> retval;
<a name="l00473"></a>00473 <span class="keywordtype">int</span> x,y,val;
<a name="l00474"></a>00474 <span class="keywordtype">char</span> *buf;
<a name="l00475"></a>00475 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> buflen,header=4;
<a name="l00476"></a>00476 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> headerbytes[5];
<a name="l00477"></a>00477 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pixel_offset = 0;
<a name="l00478"></a>00478 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> byte_offset, bit_offset;
<a name="l00479"></a>00479
<a name="l00480"></a>00480 wbmp_fd=open(filename,O_RDONLY);
<a name="l00481"></a>00481 <span class="keywordflow">if</span>(!wbmp_fd){
<a name="l00482"></a>00482 <span class="keywordflow">return</span> NULL;
<a name="l00483"></a>00483 }
<a name="l00484"></a>00484
<a name="l00485"></a>00485 retval=read(wbmp_fd,headerbytes,5);
<a name="l00486"></a>00486
<a name="l00487"></a>00487 <span class="keywordflow">if</span>(retval){
<a name="l00488"></a>00488 <span class="keywordflow">if</span> (headerbytes[2] & 1) {
<a name="l00489"></a>00489 *img_width = ((<span class="keywordtype">unsigned</span> char)headerbytes[2] ^ 1) | (<span class="keywordtype">unsigned</span> char)headerbytes[3];
<a name="l00490"></a>00490 *img_height = headerbytes[4];
<a name="l00491"></a>00491 header = 5;
<a name="l00492"></a>00492 } <span class="keywordflow">else</span> {
<a name="l00493"></a>00493 *img_width = headerbytes[2];
<a name="l00494"></a>00494 *img_height = headerbytes[3];
<a name="l00495"></a>00495 }
<a name="l00496"></a>00496
<a name="l00497"></a>00497 <span class="keywordtype">int</span> byte_width = *img_width / 8;
<a name="l00498"></a>00498 <span class="keywordflow">if</span> (*img_width %8)
<a name="l00499"></a>00499 byte_width++;
<a name="l00500"></a>00500
<a name="l00501"></a>00501 buflen = byte_width * (*img_height);
<a name="l00502"></a>00502
<a name="l00503"></a>00503 buf = (<span class="keywordtype">char</span> *)malloc (buflen);
<a name="l00504"></a>00504 <span class="keywordflow">if</span> (buf == NULL)
<a name="l00505"></a>00505 <span class="keywordflow">return</span> NULL;
<a name="l00506"></a>00506
<a name="l00507"></a>00507 <span class="keywordflow">if</span> (header == 4)
<a name="l00508"></a>00508 buf[0]=headerbytes[4];
<a name="l00509"></a>00509
<a name="l00510"></a>00510 retval=read(wbmp_fd,buf+(5-header),buflen);
<a name="l00511"></a>00511
<a name="l00512"></a>00512 close(wbmp_fd);
<a name="l00513"></a>00513 }
<a name="l00514"></a>00514
<a name="l00515"></a>00515 <span class="comment">/* now invert the image */</span>
<a name="l00516"></a>00516 <span class="keywordflow">for</span> (y = 0; y < *img_height; y++)
<a name="l00517"></a>00517 <span class="keywordflow">for</span> (x = 0; x < *img_width; x++)
<a name="l00518"></a>00518 {
<a name="l00519"></a>00519 pixel_offset = y * (*img_width) + x;
<a name="l00520"></a>00520 byte_offset = pixel_offset / <a class="code" href="libg15render_8h.html#86fd4404b140711fdb77326609c0f393">BYTE_SIZE</a>;
<a name="l00521"></a>00521 bit_offset = 7 - (pixel_offset % <a class="code" href="libg15render_8h.html#86fd4404b140711fdb77326609c0f393">BYTE_SIZE</a>);
<a name="l00522"></a>00522
<a name="l00523"></a>00523 val = (buf[byte_offset] & (1 << bit_offset)) >> bit_offset;
<a name="l00524"></a>00524
<a name="l00525"></a>00525 <span class="keywordflow">if</span> (!val)
<a name="l00526"></a>00526 buf[byte_offset] = buf[byte_offset] | 1 << bit_offset;
<a name="l00527"></a>00527 <span class="keywordflow">else</span>
<a name="l00528"></a>00528 buf[byte_offset] = buf[byte_offset] & ~(1 << bit_offset);
<a name="l00529"></a>00529 }
<a name="l00530"></a>00530
<a name="l00531"></a>00531 <span class="keywordflow">return</span> buf;
<a name="l00532"></a>00532 }
</pre></div>
<p>
</div>
</div><p>
<a class="anchor" name="cc211f96c69c987736f92accf5dbd9a2"></a><!-- doxytag: member="pixel.c::g15r_pixelBox" ref="cc211f96c69c987736f92accf5dbd9a2" args="(g15canvas *canvas, int x1, int y1, int x2, int y2, int color, int thick, int fill)" -->
<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><td> </td>
</tr>
<tr>
<td></td>
<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>
Draws a box around the area bounded by (x1, y1) and (x2, y2).<p>
The box will be filled if fill != 0 and the sides will be thick pixels wide.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>canvas</em> </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 valign="top"></td><td valign="top"><em>x1</em> </td><td>Defines leftmost bound of the box. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>y1</em> </td><td>Defines uppermost bound of the box. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>x2</em> </td><td>Defines rightmost bound of the box. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>y2</em> </td><td>Defines bottommost bound of the box. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>color</em> </td><td>Lines defining the box will be drawn this color. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>thick</em> </td><td>Lines defining the box will be this many pixels thick. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>fill</em> </td><td>The box will be filled with color if fill != 0. </td></tr>
</table>
</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"><pre class="fragment"><a name="l00165"></a>00165 {
<a name="l00166"></a>00166 <span class="keywordtype">int</span> i = 0;
<a name="l00167"></a>00167 <span class="keywordflow">for</span> (i = 0; i < thick; ++i)
<a name="l00168"></a>00168 {
<a name="l00169"></a>00169 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x1, y1, x2, y1, color); <span class="comment">/* Top */</span>
<a name="l00170"></a>00170 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x1, y1, x1, y2, color); <span class="comment">/* Left */</span>
<a name="l00171"></a>00171 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x2, y1, x2, y2, color); <span class="comment">/* Right */</span>
<a name="l00172"></a>00172 <a class="code" href="libg15render_8h.html#1eaf03a62dcd91f3175bc3920cde9eb6" title="Draws a line from (px1, py1) to (px2, py2).">g15r_drawLine</a> (canvas, x1, y2, x2, y2, color); <span class="comment">/* Bottom */</span>
<a name="l00173"></a>00173 x1++;
<a name="l00174"></a>00174 y1++;
<a name="l00175"></a>00175 x2--;
<a name="l00176"></a>00176 y2--;
<a name="l00177"></a>00177 }
<a name="l00178"></a>00178
<a name="l00179"></a>00179 <span class="keywordtype">int</span> x = 0, y = 0;
<a name="l00180"></a>00180
<a name="l00181"></a>00181 <span class="keywordflow">if</span> (fill)
<a name="l00182"></a>00182 {
<a name="l00183"></a>00183 <span class="keywordflow">for</span> (x = x1; x <= x2; ++x)
<a name="l00184"></a>00184 <span class="keywordflow">for</span> (y = y1; y <= y2; ++y)
<a name="l00185"></a>00185 <a class="code" href="libg15render_8h.html#55ea1758ff829b3cab04383f8a5eccd4" title="Sets the value of the pixel at (x, y).">g15r_setPixel</a> (canvas, x, y, color);
<a name="l00186"></a>00186 }
<a name="l00187"></a>00187
<a name="l00188"></a>00188 }
</pre></div>
<p>
</div>
</div><p>
<a class="anchor" name="6ab0fe17fbd5f010981fa9596ff3aca6"></a><!-- doxytag: member="pixel.c::g15r_pixelOverlay" ref="6ab0fe17fbd5f010981fa9596ff3aca6" args="(g15canvas *canvas, int x1, int y1, int width, int height, short colormap[])" -->
<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><td> </td>
</tr>
<tr>
<td></td>
<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>
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 compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>canvas</em> </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 valign="top"></td><td valign="top"><em>x1</em> </td><td>Defines the leftmost bound of the area to be drawn. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>y1</em> </td><td>Defines the uppermost bound of the area to be drawn. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>width</em> </td><td>Defines the width of the bitmap to be drawn. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>height</em> </td><td>Defines the height of the bitmap to be drawn. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>colormap</em> </td><td>An array containing width*height entries of value 0 for pixel off or != 0 for pixel on. </td></tr>
</table>
</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"><pre class="fragment"><a name="l00076"></a>00076 {
<a name="l00077"></a>00077 <span class="keywordtype">int</span> i = 0;
<a name="l00078"></a>00078
<a name="l00079"></a>00079 <span class="keywordflow">for</span> (i = 0; i < (width * height); ++i)
<a name="l00080"></a>00080 {
<a name="l00081"></a>00081 <span class="keywordtype">int</span> color = (colormap[i] ? <a class="code" href="libg15render_8h.html#0104fffa824becaf3a200cccc8a79c14">G15_COLOR_BLACK</a> : <a class="code" href="libg15render_8h.html#a4d92d49730a1444bdcaacf176ec4c32">G15_COLOR_WHITE</a>);
<a name="l00082"></a>00082 <span class="keywordtype">int</span> x = x1 + i % width;
<a name="l00083"></a>00083 <span class="keywordtype">int</span> y = y1 + i / width;
<a name="l00084"></a>00084 <a class="code" href="libg15render_8h.html#55ea1758ff829b3cab04383f8a5eccd4" title="Sets the value of the pixel at (x, y).">g15r_setPixel</a> (canvas, x, y, color);
<a name="l00085"></a>00085 }
<a name="l00086"></a>00086 }
</pre></div>
<p>
</div>
</div><p>
<a class="anchor" name="9f04b45ebf46f039d77d236a2de69d25"></a><!-- doxytag: member="pixel.c::g15r_pixelReverseFill" ref="9f04b45ebf46f039d77d236a2de69d25" args="(g15canvas *canvas, int x1, int y1, int x2, int y2, int fill, int color)" -->
<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><td> </td>
</tr>
<tr>
<td></td>
<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>
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 compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>canvas</em> </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 valign="top"></td><td valign="top"><em>x1</em> </td><td>Defines leftmost bound of area to be filled. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>y1</em> </td><td>Defines uppermost bound of area to be filled. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>x2</em> </td><td>Defines rightmost bound of area to be filled. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>y2</em> </td><td>Defines bottommost bound of area to be filled. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>fill</em> </td><td>Area will be filled with color if fill != 0, else contents of area will have color values reversed. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>color</em> </td><td>If fill != 0, then area will be filled if color == 1 and emptied if color == 0. </td></tr>
</table>
</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"><pre class="fragment"><a name="l00047"></a>00047 {
<a name="l00048"></a>00048 <span class="keywordtype">int</span> x = 0;
<a name="l00049"></a>00049 <span class="keywordtype">int</span> y = 0;
<a name="l00050"></a>00050
<a name="l00051"></a>00051 <span class="keywordflow">for</span> (x = x1; x <= x2; ++x)
<a name="l00052"></a>00052 {
<a name="l00053"></a>00053 <span class="keywordflow">for</span> (y = y1; y <= y2; ++y)
<a name="l00054"></a>00054 {
<a name="l00055"></a>00055 <span class="keywordflow">if</span> (!fill)
<a name="l00056"></a>00056 color = !<a class="code" href="libg15render_8h.html#b71c2319a2892031f45c7cb685387d76" title="Gets the value of the pixel at (x, y).">g15r_getPixel</a> (canvas, x, y);
<a name="l00057"></a>00057 <a class="code" href="libg15render_8h.html#55ea1758ff829b3cab04383f8a5eccd4" title="Sets the value of the pixel at (x, y).">g15r_setPixel</a> (canvas, x, y, color);
<a name="l00058"></a>00058 }
<a name="l00059"></a>00059 }
<a name="l00060"></a>00060 }
</pre></div>
<p>
</div>
</div><p>
<a class="anchor" name="cd3415eef442ced2b5e064f95f04b624"></a><!-- doxytag: member="pixel.c::swap" ref="cd3415eef442ced2b5e064f95f04b624" args="(int *x, int *y)" -->
<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><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
<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"><pre class="fragment"><a name="l00024"></a>00024 {
<a name="l00025"></a>00025 <span class="keywordtype">int</span> tmp;
<a name="l00026"></a>00026
<a name="l00027"></a>00027 tmp = *x;
<a name="l00028"></a>00028 *x = *y;
<a name="l00029"></a>00029 *y = tmp;
<a name="l00030"></a>00030 }
</pre></div>
<p>
</div>
</div><p>
</div>
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