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GameBoy Development Kit
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     43    <div id="projectname">GBDK 2020 Docs
     44    &#160;<span id="projectnumber">4.5.0</span>
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     46    <div id="projectbrief">API Documentation for GBDK 2020</div>
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    100 
    101 <div class="header">
    102   <div class="summary">
    103 <a href="#define-members">Macros</a> &#124;
    104 <a href="#func-members">Functions</a>  </div>
    105   <div class="headertitle"><div class="title">drawing.h File Reference</div></div>
    106 </div><!--header-->
    107 <div class="contents">
    108 <div class="textblock"><code>#include &lt;types.h&gt;</code><br />
    109 <code>#include &lt;<a class="el" href="stdint_8h_source.html">stdint.h</a>&gt;</code><br />
    110 </div>
    111 <p><a href="drawing_8h_source.html">Go to the source code of this file.</a></p>
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    113 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="define-members" name="define-members"></a>
    114 Macros</h2></td></tr>
    115 <tr class="memitem:GRAPHICS_WIDTH"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#GRAPHICS_WIDTH">GRAPHICS_WIDTH</a>&#160;&#160;&#160;160</td></tr>
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    117 <tr class="memitem:GRAPHICS_HEIGHT"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#GRAPHICS_HEIGHT">GRAPHICS_HEIGHT</a>&#160;&#160;&#160;144</td></tr>
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    119 <tr class="memitem:SOLID"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#SOLID">SOLID</a>&#160;&#160;&#160;0x00	    /* Overwrites the existing pixels */</td></tr>
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    121 <tr class="memitem:OR"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#OR">OR</a>&#160;&#160;&#160;0x01        /* Performs a logical OR */</td></tr>
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    123 <tr class="memitem:XOR"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#XOR">XOR</a>&#160;&#160;&#160;0x02		/* Performs a logical XOR */</td></tr>
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    125 <tr class="memitem:AND"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#AND">AND</a>&#160;&#160;&#160;0x03		/* Performs a logical AND */</td></tr>
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    127 <tr class="memitem:WHITE"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#WHITE">WHITE</a>&#160;&#160;&#160;0</td></tr>
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    132 <tr class="separator:DKGREY"><td class="memSeparator" colspan="2">&#160;</td></tr>
    133 <tr class="memitem:BLACK"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#BLACK">BLACK</a>&#160;&#160;&#160;3</td></tr>
    134 <tr class="separator:BLACK"><td class="memSeparator" colspan="2">&#160;</td></tr>
    135 <tr class="memitem:M_NOFILL"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#M_NOFILL">M_NOFILL</a>&#160;&#160;&#160;0</td></tr>
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    137 <tr class="memitem:M_FILL"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#M_FILL">M_FILL</a>&#160;&#160;&#160;1</td></tr>
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    139 <tr class="memitem:SIGNED"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#SIGNED">SIGNED</a>&#160;&#160;&#160;1</td></tr>
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    143 </table><table class="memberdecls">
    144 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
    145 Functions</h2></td></tr>
    146 <tr class="memitem:gprint"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#gprint">gprint</a> (char *str) <a class="el" href="asm_2types_8h.html#NONBANKED">NONBANKED</a></td></tr>
    147 <tr class="separator:gprint"><td class="memSeparator" colspan="2">&#160;</td></tr>
    148 <tr class="memitem:gprintln"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#gprintln">gprintln</a> (<a class="el" href="stdint_8h.html#int16_t">int16_t</a> number, <a class="el" href="stdint_8h.html#int8_t">int8_t</a> radix, <a class="el" href="stdint_8h.html#int8_t">int8_t</a> signed_value) <a class="el" href="asm_2types_8h.html#NONBANKED">NONBANKED</a></td></tr>
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    150 <tr class="memitem:gprintn"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#gprintn">gprintn</a> (<a class="el" href="stdint_8h.html#int8_t">int8_t</a> number, <a class="el" href="stdint_8h.html#int8_t">int8_t</a> radix, <a class="el" href="stdint_8h.html#int8_t">int8_t</a> signed_value) <a class="el" href="asm_2types_8h.html#NONBANKED">NONBANKED</a></td></tr>
    151 <tr class="separator:gprintn"><td class="memSeparator" colspan="2">&#160;</td></tr>
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    153 <tr class="separator:gprintf"><td class="memSeparator" colspan="2">&#160;</td></tr>
    154 <tr class="memitem:plot"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#plot">plot</a> (<a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> x, <a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> y, <a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> colour, <a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> <a class="el" href="sms_8h.html#mode">mode</a>) <a class="el" href="asm_2types_8h.html#OLDCALL">OLDCALL</a></td></tr>
    155 <tr class="separator:plot"><td class="memSeparator" colspan="2">&#160;</td></tr>
    156 <tr class="memitem:plot_point"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#plot_point">plot_point</a> (<a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> x, <a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> y) <a class="el" href="asm_2types_8h.html#OLDCALL">OLDCALL</a></td></tr>
    157 <tr class="separator:plot_point"><td class="memSeparator" colspan="2">&#160;</td></tr>
    158 <tr class="memitem:switch_data"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#switch_data">switch_data</a> (<a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> x, <a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> y, <a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> *src, <a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> *dst) <a class="el" href="asm_2types_8h.html#OLDCALL">OLDCALL</a></td></tr>
    159 <tr class="separator:switch_data"><td class="memSeparator" colspan="2">&#160;</td></tr>
    160 <tr class="memitem:draw_image"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#draw_image">draw_image</a> (<a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> *data)</td></tr>
    161 <tr class="separator:draw_image"><td class="memSeparator" colspan="2">&#160;</td></tr>
    162 <tr class="memitem:line"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#line">line</a> (<a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> x1, <a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> y1, <a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> x2, <a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> y2) <a class="el" href="asm_2types_8h.html#OLDCALL">OLDCALL</a></td></tr>
    163 <tr class="separator:line"><td class="memSeparator" colspan="2">&#160;</td></tr>
    164 <tr class="memitem:box"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#box">box</a> (<a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> x1, <a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> y1, <a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> x2, <a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> y2, <a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> style) <a class="el" href="asm_2types_8h.html#OLDCALL">OLDCALL</a></td></tr>
    165 <tr class="separator:box"><td class="memSeparator" colspan="2">&#160;</td></tr>
    166 <tr class="memitem:circle"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#circle">circle</a> (<a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> x, <a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> y, <a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> radius, <a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> style) <a class="el" href="asm_2types_8h.html#OLDCALL">OLDCALL</a></td></tr>
    167 <tr class="separator:circle"><td class="memSeparator" colspan="2">&#160;</td></tr>
    168 <tr class="memitem:getpix"><td class="memItemLeft" align="right" valign="top"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#getpix">getpix</a> (<a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> x, <a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> y) <a class="el" href="asm_2types_8h.html#OLDCALL">OLDCALL</a></td></tr>
    169 <tr class="separator:getpix"><td class="memSeparator" colspan="2">&#160;</td></tr>
    170 <tr class="memitem:wrtchr"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#wrtchr">wrtchr</a> (char chr) <a class="el" href="asm_2types_8h.html#OLDCALL">OLDCALL</a></td></tr>
    171 <tr class="separator:wrtchr"><td class="memSeparator" colspan="2">&#160;</td></tr>
    172 <tr class="memitem:gotogxy"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#gotogxy">gotogxy</a> (<a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> x, <a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> y) <a class="el" href="asm_2types_8h.html#OLDCALL">OLDCALL</a></td></tr>
    173 <tr class="separator:gotogxy"><td class="memSeparator" colspan="2">&#160;</td></tr>
    174 <tr class="memitem:color"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#color">color</a> (<a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> forecolor, <a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> backcolor, <a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> <a class="el" href="sms_8h.html#mode">mode</a>) <a class="el" href="asm_2types_8h.html#OLDCALL">OLDCALL</a></td></tr>
    175 <tr class="separator:color"><td class="memSeparator" colspan="2">&#160;</td></tr>
    176 </table>
    177 <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
    178 <div class="textblock"><p >All Points Addressable (APA) mode drawing library.</p>
    179 <p >Drawing routines originally by Pascal Felber Legendary overhall by Jon Fuge : <a href="https://github.com/jf1452">https://github.com/jf1452</a> Commenting by Michael Hope</p>
    180 <p >Note: The standard text <a class="el" href="stdio_8h.html#printf">printf()</a> and <a class="el" href="stdio_8h.html#putchar">putchar()</a> cannot be used in APA mode - use <a class="el" href="drawing_8h.html#gprintf">gprintf()</a> and <a class="el" href="drawing_8h.html#wrtchr">wrtchr()</a> instead.</p>
    181 <p >Note: Using drawing.h will cause it's custom LCD ISR (<code>drawing_lcd</code>) to be installed. Changing the mode (<code>mode(M_TEXT_OUT);</code>) will cause them to be de-installed.</p>
    182 <p >The valid coordinate ranges are from (x,y) 0,0 to 159,143. There is no built-in clipping, so drawing outside valid coordinates will likely produce undesired results (wrapping/etc).</p>
    183 <hr  />
    184 <p ><b>Important note for the drawing API :</b></p>
    185 <p >The Game Boy graphics hardware is not well suited to frame-buffer style graphics such as the kind provided in <code>drawing.h</code>. Due to that, <b>most drawing functions (rectangles, circles, etc) will be slow</b> . When possible it's much faster and more efficient to work with the tiles and tile maps that the Game Boy hardware is built around. </p>
    186 </div><h2 class="groupheader">Macro Definition Documentation</h2>
    187 <a id="GRAPHICS_WIDTH" name="GRAPHICS_WIDTH"></a>
    188 <h2 class="memtitle"><span class="permalink"><a href="#GRAPHICS_WIDTH">&#9670;&nbsp;</a></span>GRAPHICS_WIDTH</h2>
    189 
    190 <div class="memitem">
    191 <div class="memproto">
    192       <table class="memname">
    193         <tr>
    194           <td class="memname">#define GRAPHICS_WIDTH&#160;&#160;&#160;160</td>
    195         </tr>
    196       </table>
    197 </div><div class="memdoc">
    198 <p >Size of the screen in pixels </p>
    199 
    200 </div>
    201 </div>
    202 <a id="GRAPHICS_HEIGHT" name="GRAPHICS_HEIGHT"></a>
    203 <h2 class="memtitle"><span class="permalink"><a href="#GRAPHICS_HEIGHT">&#9670;&nbsp;</a></span>GRAPHICS_HEIGHT</h2>
    204 
    205 <div class="memitem">
    206 <div class="memproto">
    207       <table class="memname">
    208         <tr>
    209           <td class="memname">#define GRAPHICS_HEIGHT&#160;&#160;&#160;144</td>
    210         </tr>
    211       </table>
    212 </div><div class="memdoc">
    213 
    214 </div>
    215 </div>
    216 <a id="SOLID" name="SOLID"></a>
    217 <h2 class="memtitle"><span class="permalink"><a href="#SOLID">&#9670;&nbsp;</a></span>SOLID</h2>
    218 
    219 <div class="memitem">
    220 <div class="memproto">
    221       <table class="memname">
    222         <tr>
    223           <td class="memname">#define SOLID&#160;&#160;&#160;0x00	    /* Overwrites the existing pixels */</td>
    224         </tr>
    225       </table>
    226 </div><div class="memdoc">
    227 
    228 </div>
    229 </div>
    230 <a id="OR" name="OR"></a>
    231 <h2 class="memtitle"><span class="permalink"><a href="#OR">&#9670;&nbsp;</a></span>OR</h2>
    232 
    233 <div class="memitem">
    234 <div class="memproto">
    235       <table class="memname">
    236         <tr>
    237           <td class="memname">#define OR&#160;&#160;&#160;0x01        /* Performs a logical OR */</td>
    238         </tr>
    239       </table>
    240 </div><div class="memdoc">
    241 
    242 </div>
    243 </div>
    244 <a id="XOR" name="XOR"></a>
    245 <h2 class="memtitle"><span class="permalink"><a href="#XOR">&#9670;&nbsp;</a></span>XOR</h2>
    246 
    247 <div class="memitem">
    248 <div class="memproto">
    249       <table class="memname">
    250         <tr>
    251           <td class="memname">#define XOR&#160;&#160;&#160;0x02		/* Performs a logical XOR */</td>
    252         </tr>
    253       </table>
    254 </div><div class="memdoc">
    255 
    256 </div>
    257 </div>
    258 <a id="AND" name="AND"></a>
    259 <h2 class="memtitle"><span class="permalink"><a href="#AND">&#9670;&nbsp;</a></span>AND</h2>
    260 
    261 <div class="memitem">
    262 <div class="memproto">
    263       <table class="memname">
    264         <tr>
    265           <td class="memname">#define AND&#160;&#160;&#160;0x03		/* Performs a logical AND */</td>
    266         </tr>
    267       </table>
    268 </div><div class="memdoc">
    269 
    270 </div>
    271 </div>
    272 <a id="WHITE" name="WHITE"></a>
    273 <h2 class="memtitle"><span class="permalink"><a href="#WHITE">&#9670;&nbsp;</a></span>WHITE</h2>
    274 
    275 <div class="memitem">
    276 <div class="memproto">
    277       <table class="memname">
    278         <tr>
    279           <td class="memname">#define WHITE&#160;&#160;&#160;0</td>
    280         </tr>
    281       </table>
    282 </div><div class="memdoc">
    283 <p >Possible drawing colours </p>
    284 
    285 </div>
    286 </div>
    287 <a id="LTGREY" name="LTGREY"></a>
    288 <h2 class="memtitle"><span class="permalink"><a href="#LTGREY">&#9670;&nbsp;</a></span>LTGREY</h2>
    289 
    290 <div class="memitem">
    291 <div class="memproto">
    292       <table class="memname">
    293         <tr>
    294           <td class="memname">#define LTGREY&#160;&#160;&#160;1</td>
    295         </tr>
    296       </table>
    297 </div><div class="memdoc">
    298 
    299 </div>
    300 </div>
    301 <a id="DKGREY" name="DKGREY"></a>
    302 <h2 class="memtitle"><span class="permalink"><a href="#DKGREY">&#9670;&nbsp;</a></span>DKGREY</h2>
    303 
    304 <div class="memitem">
    305 <div class="memproto">
    306       <table class="memname">
    307         <tr>
    308           <td class="memname">#define DKGREY&#160;&#160;&#160;2</td>
    309         </tr>
    310       </table>
    311 </div><div class="memdoc">
    312 
    313 </div>
    314 </div>
    315 <a id="BLACK" name="BLACK"></a>
    316 <h2 class="memtitle"><span class="permalink"><a href="#BLACK">&#9670;&nbsp;</a></span>BLACK</h2>
    317 
    318 <div class="memitem">
    319 <div class="memproto">
    320       <table class="memname">
    321         <tr>
    322           <td class="memname">#define BLACK&#160;&#160;&#160;3</td>
    323         </tr>
    324       </table>
    325 </div><div class="memdoc">
    326 
    327 </div>
    328 </div>
    329 <a id="M_NOFILL" name="M_NOFILL"></a>
    330 <h2 class="memtitle"><span class="permalink"><a href="#M_NOFILL">&#9670;&nbsp;</a></span>M_NOFILL</h2>
    331 
    332 <div class="memitem">
    333 <div class="memproto">
    334       <table class="memname">
    335         <tr>
    336           <td class="memname">#define M_NOFILL&#160;&#160;&#160;0</td>
    337         </tr>
    338       </table>
    339 </div><div class="memdoc">
    340 <p >Possible fill styles for <a class="el" href="drawing_8h.html#box">box()</a> and <a class="el" href="drawing_8h.html#circle">circle()</a> </p>
    341 
    342 </div>
    343 </div>
    344 <a id="M_FILL" name="M_FILL"></a>
    345 <h2 class="memtitle"><span class="permalink"><a href="#M_FILL">&#9670;&nbsp;</a></span>M_FILL</h2>
    346 
    347 <div class="memitem">
    348 <div class="memproto">
    349       <table class="memname">
    350         <tr>
    351           <td class="memname">#define M_FILL&#160;&#160;&#160;1</td>
    352         </tr>
    353       </table>
    354 </div><div class="memdoc">
    355 
    356 </div>
    357 </div>
    358 <a id="SIGNED" name="SIGNED"></a>
    359 <h2 class="memtitle"><span class="permalink"><a href="#SIGNED">&#9670;&nbsp;</a></span>SIGNED</h2>
    360 
    361 <div class="memitem">
    362 <div class="memproto">
    363       <table class="memname">
    364         <tr>
    365           <td class="memname">#define SIGNED&#160;&#160;&#160;1</td>
    366         </tr>
    367       </table>
    368 </div><div class="memdoc">
    369 <p >Possible values for signed_value in <a class="el" href="drawing_8h.html#gprintln">gprintln()</a> and <a class="el" href="drawing_8h.html#gprintn">gprintn()</a> </p>
    370 
    371 </div>
    372 </div>
    373 <a id="UNSIGNED" name="UNSIGNED"></a>
    374 <h2 class="memtitle"><span class="permalink"><a href="#UNSIGNED">&#9670;&nbsp;</a></span>UNSIGNED</h2>
    375 
    376 <div class="memitem">
    377 <div class="memproto">
    378       <table class="memname">
    379         <tr>
    380           <td class="memname">#define UNSIGNED&#160;&#160;&#160;0</td>
    381         </tr>
    382       </table>
    383 </div><div class="memdoc">
    384 
    385 </div>
    386 </div>
    387 <h2 class="groupheader">Function Documentation</h2>
    388 <a id="gprint" name="gprint"></a>
    389 <h2 class="memtitle"><span class="permalink"><a href="#gprint">&#9670;&nbsp;</a></span>gprint()</h2>
    390 
    391 <div class="memitem">
    392 <div class="memproto">
    393       <table class="memname">
    394         <tr>
    395           <td class="memname">void gprint </td>
    396           <td>(</td>
    397           <td class="paramtype">char *&#160;</td>
    398           <td class="paramname"><em>str</em></td><td>)</td>
    399           <td></td>
    400         </tr>
    401       </table>
    402 </div><div class="memdoc">
    403 <p >Print the string 'str' with no interpretation </p><dl class="section see"><dt>See also</dt><dd><a class="el" href="drawing_8h.html#gotogxy">gotogxy()</a> </dd></dl>
    404 
    405 </div>
    406 </div>
    407 <a id="gprintln" name="gprintln"></a>
    408 <h2 class="memtitle"><span class="permalink"><a href="#gprintln">&#9670;&nbsp;</a></span>gprintln()</h2>
    409 
    410 <div class="memitem">
    411 <div class="memproto">
    412       <table class="memname">
    413         <tr>
    414           <td class="memname">void gprintln </td>
    415           <td>(</td>
    416           <td class="paramtype"><a class="el" href="stdint_8h.html#int16_t">int16_t</a>&#160;</td>
    417           <td class="paramname"><em>number</em>, </td>
    418         </tr>
    419         <tr>
    420           <td class="paramkey"></td>
    421           <td></td>
    422           <td class="paramtype"><a class="el" href="stdint_8h.html#int8_t">int8_t</a>&#160;</td>
    423           <td class="paramname"><em>radix</em>, </td>
    424         </tr>
    425         <tr>
    426           <td class="paramkey"></td>
    427           <td></td>
    428           <td class="paramtype"><a class="el" href="stdint_8h.html#int8_t">int8_t</a>&#160;</td>
    429           <td class="paramname"><em>signed_value</em>&#160;</td>
    430         </tr>
    431         <tr>
    432           <td></td>
    433           <td>)</td>
    434           <td></td><td></td>
    435         </tr>
    436       </table>
    437 </div><div class="memdoc">
    438 <p >Print 16 bit <b>number</b> in <b>radix</b> (base) in the default font at the current text position.</p>
    439 <dl class="params"><dt>Parameters</dt><dd>
    440   <table class="params">
    441     <tr><td class="paramname">number</td><td>number to print </td></tr>
    442     <tr><td class="paramname">radix</td><td>radix (base) to print with </td></tr>
    443     <tr><td class="paramname">signed_value</td><td>should be set to SIGNED or UNSIGNED depending on whether the number is signed or not</td></tr>
    444   </table>
    445   </dd>
    446 </dl>
    447 <p>The current position is advanced by the numer of characters printed. </p><dl class="section see"><dt>See also</dt><dd><a class="el" href="drawing_8h.html#gotogxy">gotogxy()</a> </dd></dl>
    448 
    449 </div>
    450 </div>
    451 <a id="gprintn" name="gprintn"></a>
    452 <h2 class="memtitle"><span class="permalink"><a href="#gprintn">&#9670;&nbsp;</a></span>gprintn()</h2>
    453 
    454 <div class="memitem">
    455 <div class="memproto">
    456       <table class="memname">
    457         <tr>
    458           <td class="memname">void gprintn </td>
    459           <td>(</td>
    460           <td class="paramtype"><a class="el" href="stdint_8h.html#int8_t">int8_t</a>&#160;</td>
    461           <td class="paramname"><em>number</em>, </td>
    462         </tr>
    463         <tr>
    464           <td class="paramkey"></td>
    465           <td></td>
    466           <td class="paramtype"><a class="el" href="stdint_8h.html#int8_t">int8_t</a>&#160;</td>
    467           <td class="paramname"><em>radix</em>, </td>
    468         </tr>
    469         <tr>
    470           <td class="paramkey"></td>
    471           <td></td>
    472           <td class="paramtype"><a class="el" href="stdint_8h.html#int8_t">int8_t</a>&#160;</td>
    473           <td class="paramname"><em>signed_value</em>&#160;</td>
    474         </tr>
    475         <tr>
    476           <td></td>
    477           <td>)</td>
    478           <td></td><td></td>
    479         </tr>
    480       </table>
    481 </div><div class="memdoc">
    482 <p >Print 8 bit <b>number</b> in <b>radix</b> (base) in the default font at the current text position.</p>
    483 <dl class="section see"><dt>See also</dt><dd><a class="el" href="drawing_8h.html#gprintln">gprintln()</a>, <a class="el" href="drawing_8h.html#gotogxy">gotogxy()</a> </dd></dl>
    484 
    485 </div>
    486 </div>
    487 <a id="gprintf" name="gprintf"></a>
    488 <h2 class="memtitle"><span class="permalink"><a href="#gprintf">&#9670;&nbsp;</a></span>gprintf()</h2>
    489 
    490 <div class="memitem">
    491 <div class="memproto">
    492       <table class="memname">
    493         <tr>
    494           <td class="memname"><a class="el" href="stdint_8h.html#int8_t">int8_t</a> gprintf </td>
    495           <td>(</td>
    496           <td class="paramtype">char *&#160;</td>
    497           <td class="paramname"><em>fmt</em>, </td>
    498         </tr>
    499         <tr>
    500           <td class="paramkey"></td>
    501           <td></td>
    502           <td class="paramtype">&#160;</td>
    503           <td class="paramname"><em>...</em>&#160;</td>
    504         </tr>
    505         <tr>
    506           <td></td>
    507           <td>)</td>
    508           <td></td><td></td>
    509         </tr>
    510       </table>
    511 </div><div class="memdoc">
    512 <p >Print the string and arguments given by <b>fmt</b> with arguments __...__</p>
    513 <dl class="params"><dt>Parameters</dt><dd>
    514   <table class="params">
    515     <tr><td class="paramname">fmt</td><td>The format string as per printf </td></tr>
    516     <tr><td class="paramname">...</td><td>params</td></tr>
    517   </table>
    518   </dd>
    519 </dl>
    520 <p>Currently supported: </p><ul>
    521 <li>%c (character) </li>
    522 <li>%u (int) </li>
    523 <li>%d (int8_t) </li>
    524 <li>%o (int8_t as octal) </li>
    525 <li>%x (int8_t as hex) </li>
    526 <li>%s (string)</li>
    527 </ul>
    528 <dl class="section return"><dt>Returns</dt><dd>Returns the number of items printed, or -1 if there was an error. </dd></dl>
    529 <dl class="section see"><dt>See also</dt><dd><a class="el" href="drawing_8h.html#gotogxy">gotogxy()</a> </dd></dl>
    530 
    531 </div>
    532 </div>
    533 <a id="plot" name="plot"></a>
    534 <h2 class="memtitle"><span class="permalink"><a href="#plot">&#9670;&nbsp;</a></span>plot()</h2>
    535 
    536 <div class="memitem">
    537 <div class="memproto">
    538       <table class="memname">
    539         <tr>
    540           <td class="memname">void plot </td>
    541           <td>(</td>
    542           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    543           <td class="paramname"><em>x</em>, </td>
    544         </tr>
    545         <tr>
    546           <td class="paramkey"></td>
    547           <td></td>
    548           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    549           <td class="paramname"><em>y</em>, </td>
    550         </tr>
    551         <tr>
    552           <td class="paramkey"></td>
    553           <td></td>
    554           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    555           <td class="paramname"><em>colour</em>, </td>
    556         </tr>
    557         <tr>
    558           <td class="paramkey"></td>
    559           <td></td>
    560           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    561           <td class="paramname"><em>mode</em>&#160;</td>
    562         </tr>
    563         <tr>
    564           <td></td>
    565           <td>)</td>
    566           <td></td><td></td>
    567         </tr>
    568       </table>
    569 </div><div class="memdoc">
    570 <p >Old style plot - try <a class="el" href="drawing_8h.html#plot_point">plot_point()</a> </p>
    571 
    572 </div>
    573 </div>
    574 <a id="plot_point" name="plot_point"></a>
    575 <h2 class="memtitle"><span class="permalink"><a href="#plot_point">&#9670;&nbsp;</a></span>plot_point()</h2>
    576 
    577 <div class="memitem">
    578 <div class="memproto">
    579       <table class="memname">
    580         <tr>
    581           <td class="memname">void plot_point </td>
    582           <td>(</td>
    583           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    584           <td class="paramname"><em>x</em>, </td>
    585         </tr>
    586         <tr>
    587           <td class="paramkey"></td>
    588           <td></td>
    589           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    590           <td class="paramname"><em>y</em>&#160;</td>
    591         </tr>
    592         <tr>
    593           <td></td>
    594           <td>)</td>
    595           <td></td><td></td>
    596         </tr>
    597       </table>
    598 </div><div class="memdoc">
    599 <p >Plot a point in the current drawing mode and colour at <b>x,y</b> </p>
    600 
    601 </div>
    602 </div>
    603 <a id="switch_data" name="switch_data"></a>
    604 <h2 class="memtitle"><span class="permalink"><a href="#switch_data">&#9670;&nbsp;</a></span>switch_data()</h2>
    605 
    606 <div class="memitem">
    607 <div class="memproto">
    608       <table class="memname">
    609         <tr>
    610           <td class="memname">void switch_data </td>
    611           <td>(</td>
    612           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    613           <td class="paramname"><em>x</em>, </td>
    614         </tr>
    615         <tr>
    616           <td class="paramkey"></td>
    617           <td></td>
    618           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    619           <td class="paramname"><em>y</em>, </td>
    620         </tr>
    621         <tr>
    622           <td class="paramkey"></td>
    623           <td></td>
    624           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> *&#160;</td>
    625           <td class="paramname"><em>src</em>, </td>
    626         </tr>
    627         <tr>
    628           <td class="paramkey"></td>
    629           <td></td>
    630           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> *&#160;</td>
    631           <td class="paramname"><em>dst</em>&#160;</td>
    632         </tr>
    633         <tr>
    634           <td></td>
    635           <td>)</td>
    636           <td></td><td></td>
    637         </tr>
    638       </table>
    639 </div><div class="memdoc">
    640 <p >Exchanges the tile on screen at x,y with the tile pointed by src, original tile is saved in dst. Both src and dst may be NULL - saving or copying to screen is not performed in this case. </p>
    641 
    642 </div>
    643 </div>
    644 <a id="draw_image" name="draw_image"></a>
    645 <h2 class="memtitle"><span class="permalink"><a href="#draw_image">&#9670;&nbsp;</a></span>draw_image()</h2>
    646 
    647 <div class="memitem">
    648 <div class="memproto">
    649       <table class="memname">
    650         <tr>
    651           <td class="memname">void draw_image </td>
    652           <td>(</td>
    653           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> *&#160;</td>
    654           <td class="paramname"><em>data</em></td><td>)</td>
    655           <td></td>
    656         </tr>
    657       </table>
    658 </div><div class="memdoc">
    659 <p >Draw a full screen image at <b>data</b> </p>
    660 
    661 </div>
    662 </div>
    663 <a id="line" name="line"></a>
    664 <h2 class="memtitle"><span class="permalink"><a href="#line">&#9670;&nbsp;</a></span>line()</h2>
    665 
    666 <div class="memitem">
    667 <div class="memproto">
    668       <table class="memname">
    669         <tr>
    670           <td class="memname">void line </td>
    671           <td>(</td>
    672           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    673           <td class="paramname"><em>x1</em>, </td>
    674         </tr>
    675         <tr>
    676           <td class="paramkey"></td>
    677           <td></td>
    678           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    679           <td class="paramname"><em>y1</em>, </td>
    680         </tr>
    681         <tr>
    682           <td class="paramkey"></td>
    683           <td></td>
    684           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    685           <td class="paramname"><em>x2</em>, </td>
    686         </tr>
    687         <tr>
    688           <td class="paramkey"></td>
    689           <td></td>
    690           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    691           <td class="paramname"><em>y2</em>&#160;</td>
    692         </tr>
    693         <tr>
    694           <td></td>
    695           <td>)</td>
    696           <td></td><td></td>
    697         </tr>
    698       </table>
    699 </div><div class="memdoc">
    700 <p >Draw a line in the current drawing mode and colour from <b>x1,y1</b> to <b>x2,y2</b> </p>
    701 
    702 </div>
    703 </div>
    704 <a id="box" name="box"></a>
    705 <h2 class="memtitle"><span class="permalink"><a href="#box">&#9670;&nbsp;</a></span>box()</h2>
    706 
    707 <div class="memitem">
    708 <div class="memproto">
    709       <table class="memname">
    710         <tr>
    711           <td class="memname">void box </td>
    712           <td>(</td>
    713           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    714           <td class="paramname"><em>x1</em>, </td>
    715         </tr>
    716         <tr>
    717           <td class="paramkey"></td>
    718           <td></td>
    719           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    720           <td class="paramname"><em>y1</em>, </td>
    721         </tr>
    722         <tr>
    723           <td class="paramkey"></td>
    724           <td></td>
    725           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    726           <td class="paramname"><em>x2</em>, </td>
    727         </tr>
    728         <tr>
    729           <td class="paramkey"></td>
    730           <td></td>
    731           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    732           <td class="paramname"><em>y2</em>, </td>
    733         </tr>
    734         <tr>
    735           <td class="paramkey"></td>
    736           <td></td>
    737           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    738           <td class="paramname"><em>style</em>&#160;</td>
    739         </tr>
    740         <tr>
    741           <td></td>
    742           <td>)</td>
    743           <td></td><td></td>
    744         </tr>
    745       </table>
    746 </div><div class="memdoc">
    747 <p >Draw a box (rectangle) with corners <b>x1,y1</b> and <b>x2,y2</b> using fill mode <b>style</b> (one of NOFILL or FILL) </p>
    748 
    749 </div>
    750 </div>
    751 <a id="circle" name="circle"></a>
    752 <h2 class="memtitle"><span class="permalink"><a href="#circle">&#9670;&nbsp;</a></span>circle()</h2>
    753 
    754 <div class="memitem">
    755 <div class="memproto">
    756       <table class="memname">
    757         <tr>
    758           <td class="memname">void circle </td>
    759           <td>(</td>
    760           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    761           <td class="paramname"><em>x</em>, </td>
    762         </tr>
    763         <tr>
    764           <td class="paramkey"></td>
    765           <td></td>
    766           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    767           <td class="paramname"><em>y</em>, </td>
    768         </tr>
    769         <tr>
    770           <td class="paramkey"></td>
    771           <td></td>
    772           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    773           <td class="paramname"><em>radius</em>, </td>
    774         </tr>
    775         <tr>
    776           <td class="paramkey"></td>
    777           <td></td>
    778           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    779           <td class="paramname"><em>style</em>&#160;</td>
    780         </tr>
    781         <tr>
    782           <td></td>
    783           <td>)</td>
    784           <td></td><td></td>
    785         </tr>
    786       </table>
    787 </div><div class="memdoc">
    788 <p >Draw a circle with centre at <b>x,y</b> and <b>radius</b> using fill mode <b>style</b> (one of NOFILL or FILL) </p>
    789 
    790 </div>
    791 </div>
    792 <a id="getpix" name="getpix"></a>
    793 <h2 class="memtitle"><span class="permalink"><a href="#getpix">&#9670;&nbsp;</a></span>getpix()</h2>
    794 
    795 <div class="memitem">
    796 <div class="memproto">
    797       <table class="memname">
    798         <tr>
    799           <td class="memname"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a> getpix </td>
    800           <td>(</td>
    801           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    802           <td class="paramname"><em>x</em>, </td>
    803         </tr>
    804         <tr>
    805           <td class="paramkey"></td>
    806           <td></td>
    807           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    808           <td class="paramname"><em>y</em>&#160;</td>
    809         </tr>
    810         <tr>
    811           <td></td>
    812           <td>)</td>
    813           <td></td><td></td>
    814         </tr>
    815       </table>
    816 </div><div class="memdoc">
    817 <p >Returns the current colour of the pixel at <b>x,y</b> </p>
    818 
    819 </div>
    820 </div>
    821 <a id="wrtchr" name="wrtchr"></a>
    822 <h2 class="memtitle"><span class="permalink"><a href="#wrtchr">&#9670;&nbsp;</a></span>wrtchr()</h2>
    823 
    824 <div class="memitem">
    825 <div class="memproto">
    826       <table class="memname">
    827         <tr>
    828           <td class="memname">void wrtchr </td>
    829           <td>(</td>
    830           <td class="paramtype">char&#160;</td>
    831           <td class="paramname"><em>chr</em></td><td>)</td>
    832           <td></td>
    833         </tr>
    834       </table>
    835 </div><div class="memdoc">
    836 <p >Prints the character <b>chr</b> in the default font at the current text position.</p>
    837 <p >The current position is advanced by 1 after the character is printed. </p><dl class="section see"><dt>See also</dt><dd><a class="el" href="drawing_8h.html#gotogxy">gotogxy()</a> </dd></dl>
    838 
    839 </div>
    840 </div>
    841 <a id="gotogxy" name="gotogxy"></a>
    842 <h2 class="memtitle"><span class="permalink"><a href="#gotogxy">&#9670;&nbsp;</a></span>gotogxy()</h2>
    843 
    844 <div class="memitem">
    845 <div class="memproto">
    846       <table class="memname">
    847         <tr>
    848           <td class="memname">void gotogxy </td>
    849           <td>(</td>
    850           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    851           <td class="paramname"><em>x</em>, </td>
    852         </tr>
    853         <tr>
    854           <td class="paramkey"></td>
    855           <td></td>
    856           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    857           <td class="paramname"><em>y</em>&#160;</td>
    858         </tr>
    859         <tr>
    860           <td></td>
    861           <td>)</td>
    862           <td></td><td></td>
    863         </tr>
    864       </table>
    865 </div><div class="memdoc">
    866 <p >Sets the current text position to <b>x,y</b>.</p>
    867 <p >Note: <b>x</b> and <b>y</b> have units of tiles (8 pixels per unit) </p><dl class="section see"><dt>See also</dt><dd><a class="el" href="drawing_8h.html#wrtchr">wrtchr()</a> </dd></dl>
    868 
    869 </div>
    870 </div>
    871 <a id="color" name="color"></a>
    872 <h2 class="memtitle"><span class="permalink"><a href="#color">&#9670;&nbsp;</a></span>color()</h2>
    873 
    874 <div class="memitem">
    875 <div class="memproto">
    876       <table class="memname">
    877         <tr>
    878           <td class="memname">void color </td>
    879           <td>(</td>
    880           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    881           <td class="paramname"><em>forecolor</em>, </td>
    882         </tr>
    883         <tr>
    884           <td class="paramkey"></td>
    885           <td></td>
    886           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    887           <td class="paramname"><em>backcolor</em>, </td>
    888         </tr>
    889         <tr>
    890           <td class="paramkey"></td>
    891           <td></td>
    892           <td class="paramtype"><a class="el" href="stdint_8h.html#uint8_t">uint8_t</a>&#160;</td>
    893           <td class="paramname"><em>mode</em>&#160;</td>
    894         </tr>
    895         <tr>
    896           <td></td>
    897           <td>)</td>
    898           <td></td><td></td>
    899         </tr>
    900       </table>
    901 </div><div class="memdoc">
    902 <p >Set the current <b>forecolor</b> colour, <b>backcolor</b> colour, and draw <b>mode</b></p>
    903 <dl class="params"><dt>Parameters</dt><dd>
    904   <table class="params">
    905     <tr><td class="paramname">forecolor</td><td>The primary drawing color (outlines of rectangles with <a class="el" href="drawing_8h.html#box">box()</a>, letter color with <a class="el" href="drawing_8h.html#gprintf">gprintf()</a>, etc). </td></tr>
    906     <tr><td class="paramname">backcolor</td><td>Secondary or background color where applicable (fill color of rectangles with <a class="el" href="drawing_8h.html#box">box()</a> when <a class="el" href="drawing_8h.html#M_FILL">M_FILL</a> is specifed, background color of text with <a class="el" href="drawing_8h.html#gprintf">gprintf()</a>, etc). </td></tr>
    907     <tr><td class="paramname">mode</td><td>Drawing style to use. Several settings are available <code>SOLID</code>, <code>OR</code>, <code>XOR</code>, <code>AND</code>.</td></tr>
    908   </table>
    909   </dd>
    910 </dl>
    911 <p>In order to completely overwrite existing pixels use <code>SOLID</code> for <b>mode</b> </p>
    912 
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