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<a href="#typedef-members">Typedefs</a> &#124;
<a href="#enum-members">Enumerations</a> &#124;
<a href="#func-members">Functions</a> </div>
<div class="headertitle"><div class="title">png_decoder.h File Reference</div></div>
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<p>PNG decoder.
<a href="#details">More...</a></p>
<p><a href="png__decoder_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="typedef-members" name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr class="memitem:a85923de55a2f9fb330741fee267bb57b" id="r_a85923de55a2f9fb330741fee267bb57b"><td class="memItemLeft" align="right" valign="top">typedef void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="png__decoder_8h.html#a85923de55a2f9fb330741fee267bb57b">png_callback_t</a>(<a class="el" href="png__decoder_8h.html#ac5fcb9a8ef757c913a1529c94c7436d4">png_err_t</a> err, surface_t *decoded_image, void *callback_data)</td></tr>
<tr class="memdesc:a85923de55a2f9fb330741fee267bb57b"><td class="mdescLeft">&#160;</td><td class="mdescRight">PNG decoder callback type. <br /></td></tr>
<tr class="separator:a85923de55a2f9fb330741fee267bb57b"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="enum-members" name="enum-members"></a>
Enumerations</h2></td></tr>
<tr class="memitem:ac5fcb9a8ef757c913a1529c94c7436d4" id="r_ac5fcb9a8ef757c913a1529c94c7436d4"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="png__decoder_8h.html#ac5fcb9a8ef757c913a1529c94c7436d4">png_err_t</a> { <br />
&#160;&#160;<a class="el" href="png__decoder_8h.html#ac5fcb9a8ef757c913a1529c94c7436d4a4dd699113fbe010c8db17e53d985ee36">PNG_OK</a>
, <a class="el" href="png__decoder_8h.html#ac5fcb9a8ef757c913a1529c94c7436d4ab7dfe97b20a5d315ec4e50b34213b708">PNG_ERR_INT</a>
, <a class="el" href="png__decoder_8h.html#ac5fcb9a8ef757c913a1529c94c7436d4a78dfb25c1a327500e83544d2b60d80ff">PNG_ERR_BUSY</a>
, <a class="el" href="png__decoder_8h.html#ac5fcb9a8ef757c913a1529c94c7436d4ad5fedd800328fc1e25145b1f3a08b4a9">PNG_ERR_OUT_OF_MEM</a>
, <br />
&#160;&#160;<a class="el" href="png__decoder_8h.html#ac5fcb9a8ef757c913a1529c94c7436d4aa42dd20b6f2645d36a992e02f791f2d6">PNG_ERR_NO_FILE</a>
, <a class="el" href="png__decoder_8h.html#ac5fcb9a8ef757c913a1529c94c7436d4a096ebce23ce7b7e81e5bae7d218c36b1">PNG_ERR_BAD_FILE</a>
<br />
}</td></tr>
<tr class="memdesc:ac5fcb9a8ef757c913a1529c94c7436d4"><td class="mdescLeft">&#160;</td><td class="mdescRight">PNG decoder errors. <a href="png__decoder_8h.html#ac5fcb9a8ef757c913a1529c94c7436d4">More...</a><br /></td></tr>
<tr class="separator:ac5fcb9a8ef757c913a1529c94c7436d4"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a91b64bacdbc4945af5e10bc2171e95ed" id="r_a91b64bacdbc4945af5e10bc2171e95ed"><td class="memItemLeft" align="right" valign="top"><a class="el" href="png__decoder_8h.html#ac5fcb9a8ef757c913a1529c94c7436d4">png_err_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="png__decoder_8h.html#a91b64bacdbc4945af5e10bc2171e95ed">png_decoder_start</a> (char *path, int max_width, int max_height, <a class="el" href="png__decoder_8h.html#a85923de55a2f9fb330741fee267bb57b">png_callback_t</a> *callback, void *callback_data)</td></tr>
<tr class="memdesc:a91b64bacdbc4945af5e10bc2171e95ed"><td class="mdescLeft">&#160;</td><td class="mdescRight">Start the PNG decoding process. <br /></td></tr>
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<tr class="memitem:ac38ee3f3c0d1efba8b698e52d3ed203f" id="r_ac38ee3f3c0d1efba8b698e52d3ed203f"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="png__decoder_8h.html#ac38ee3f3c0d1efba8b698e52d3ed203f">png_decoder_abort</a> (void)</td></tr>
<tr class="memdesc:ac38ee3f3c0d1efba8b698e52d3ed203f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Abort the PNG decoding process. <br /></td></tr>
<tr class="separator:ac38ee3f3c0d1efba8b698e52d3ed203f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6b2ba820e7e2d9b49ba727b78beb6ac8" id="r_a6b2ba820e7e2d9b49ba727b78beb6ac8"><td class="memItemLeft" align="right" valign="top">float&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="png__decoder_8h.html#a6b2ba820e7e2d9b49ba727b78beb6ac8">png_decoder_get_progress</a> (void)</td></tr>
<tr class="memdesc:a6b2ba820e7e2d9b49ba727b78beb6ac8"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the progress of the PNG decoding process. <br /></td></tr>
<tr class="separator:a6b2ba820e7e2d9b49ba727b78beb6ac8"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a7e7514f26e11a67484fe42009bf58ced" id="r_a7e7514f26e11a67484fe42009bf58ced"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="png__decoder_8h.html#a7e7514f26e11a67484fe42009bf58ced">png_decoder_poll</a> (void)</td></tr>
<tr class="memdesc:a7e7514f26e11a67484fe42009bf58ced"><td class="mdescLeft">&#160;</td><td class="mdescRight">Poll the PNG decoder. <br /></td></tr>
<tr class="separator:a7e7514f26e11a67484fe42009bf58ced"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>PNG decoder. </p>
</div><h2 class="groupheader">Typedef Documentation</h2>
<a id="a85923de55a2f9fb330741fee267bb57b" name="a85923de55a2f9fb330741fee267bb57b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a85923de55a2f9fb330741fee267bb57b">&#9670;&#160;</a></span>png_callback_t</h2>
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<td class="memname">typedef void png_callback_t(<a class="el" href="png__decoder_8h.html#ac5fcb9a8ef757c913a1529c94c7436d4">png_err_t</a> err, surface_t *decoded_image, void *callback_data)</td>
</tr>
</table>
</div><div class="memdoc">
<p>PNG decoder callback type. </p>
<p>This typedef defines the callback function type used by the PNG decoder.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">err</td><td>Error code indicating the result of the decoding process. </td></tr>
<tr><td class="paramname">decoded_image</td><td>Pointer to the decoded image surface. </td></tr>
<tr><td class="paramname">callback_data</td><td>User-defined data passed to the callback function. </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<h2 class="groupheader">Enumeration Type Documentation</h2>
<a id="ac5fcb9a8ef757c913a1529c94c7436d4" name="ac5fcb9a8ef757c913a1529c94c7436d4"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac5fcb9a8ef757c913a1529c94c7436d4">&#9670;&#160;</a></span>png_err_t</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">enum <a class="el" href="png__decoder_8h.html#ac5fcb9a8ef757c913a1529c94c7436d4">png_err_t</a></td>
</tr>
</table>
</div><div class="memdoc">
<p>PNG decoder errors. </p>
<p>Enumeration for different types of errors that can occur in the PNG decoder. </p>
<table class="fieldtable">
<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="ac5fcb9a8ef757c913a1529c94c7436d4a4dd699113fbe010c8db17e53d985ee36" name="ac5fcb9a8ef757c913a1529c94c7436d4a4dd699113fbe010c8db17e53d985ee36"></a>PNG_OK&#160;</td><td class="fielddoc"><p>No error </p>
</td></tr>
<tr><td class="fieldname"><a id="ac5fcb9a8ef757c913a1529c94c7436d4ab7dfe97b20a5d315ec4e50b34213b708" name="ac5fcb9a8ef757c913a1529c94c7436d4ab7dfe97b20a5d315ec4e50b34213b708"></a>PNG_ERR_INT&#160;</td><td class="fielddoc"><p>Internal error </p>
</td></tr>
<tr><td class="fieldname"><a id="ac5fcb9a8ef757c913a1529c94c7436d4a78dfb25c1a327500e83544d2b60d80ff" name="ac5fcb9a8ef757c913a1529c94c7436d4a78dfb25c1a327500e83544d2b60d80ff"></a>PNG_ERR_BUSY&#160;</td><td class="fielddoc"><p>Decoder is busy </p>
</td></tr>
<tr><td class="fieldname"><a id="ac5fcb9a8ef757c913a1529c94c7436d4ad5fedd800328fc1e25145b1f3a08b4a9" name="ac5fcb9a8ef757c913a1529c94c7436d4ad5fedd800328fc1e25145b1f3a08b4a9"></a>PNG_ERR_OUT_OF_MEM&#160;</td><td class="fielddoc"><p>Out of memory error </p>
</td></tr>
<tr><td class="fieldname"><a id="ac5fcb9a8ef757c913a1529c94c7436d4aa42dd20b6f2645d36a992e02f791f2d6" name="ac5fcb9a8ef757c913a1529c94c7436d4aa42dd20b6f2645d36a992e02f791f2d6"></a>PNG_ERR_NO_FILE&#160;</td><td class="fielddoc"><p>No file found error </p>
</td></tr>
<tr><td class="fieldname"><a id="ac5fcb9a8ef757c913a1529c94c7436d4a096ebce23ce7b7e81e5bae7d218c36b1" name="ac5fcb9a8ef757c913a1529c94c7436d4a096ebce23ce7b7e81e5bae7d218c36b1"></a>PNG_ERR_BAD_FILE&#160;</td><td class="fielddoc"><p>Bad file error </p>
</td></tr>
</table>
</div>
</div>
<h2 class="groupheader">Function Documentation</h2>
<a id="a91b64bacdbc4945af5e10bc2171e95ed" name="a91b64bacdbc4945af5e10bc2171e95ed"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a91b64bacdbc4945af5e10bc2171e95ed">&#9670;&#160;</a></span>png_decoder_start()</h2>
<div class="memitem">
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<tr>
<td class="memname"><a class="el" href="png__decoder_8h.html#ac5fcb9a8ef757c913a1529c94c7436d4">png_err_t</a> png_decoder_start </td>
<td>(</td>
<td class="paramtype">char *&#160;</td>
<td class="paramname"><em>path</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>max_width</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>max_height</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="png__decoder_8h.html#a85923de55a2f9fb330741fee267bb57b">png_callback_t</a> *&#160;</td>
<td class="paramname"><em>callback</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">void *&#160;</td>
<td class="paramname"><em>callback_data</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Start the PNG decoding process. </p>
<p>This function starts the PNG decoding process for the specified file.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">path</td><td>Path to the PNG file. </td></tr>
<tr><td class="paramname">max_width</td><td>Maximum width of the decoded image. </td></tr>
<tr><td class="paramname">max_height</td><td>Maximum height of the decoded image. </td></tr>
<tr><td class="paramname">callback</td><td>Callback function to be called when decoding is complete. </td></tr>
<tr><td class="paramname">callback_data</td><td>User-defined data to be passed to the callback function. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>png_err_t Error code indicating the result of the start operation. </dd></dl>
</div>
</div>
<a id="ac38ee3f3c0d1efba8b698e52d3ed203f" name="ac38ee3f3c0d1efba8b698e52d3ed203f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac38ee3f3c0d1efba8b698e52d3ed203f">&#9670;&#160;</a></span>png_decoder_abort()</h2>
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<td class="memname">void png_decoder_abort </td>
<td>(</td>
<td class="paramtype">void&#160;</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Abort the PNG decoding process. </p>
<p>This function aborts the ongoing PNG decoding process. </p>
</div>
</div>
<a id="a6b2ba820e7e2d9b49ba727b78beb6ac8" name="a6b2ba820e7e2d9b49ba727b78beb6ac8"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a6b2ba820e7e2d9b49ba727b78beb6ac8">&#9670;&#160;</a></span>png_decoder_get_progress()</h2>
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<td class="memname">float png_decoder_get_progress </td>
<td>(</td>
<td class="paramtype">void&#160;</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Get the progress of the PNG decoding process. </p>
<p>This function returns the current progress of the PNG decoding process as a percentage.</p>
<dl class="section return"><dt>Returns</dt><dd>float Current progress of the decoding process (0.0 to 100.0). </dd></dl>
</div>
</div>
<a id="a7e7514f26e11a67484fe42009bf58ced" name="a7e7514f26e11a67484fe42009bf58ced"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a7e7514f26e11a67484fe42009bf58ced">&#9670;&#160;</a></span>png_decoder_poll()</h2>
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<td class="memname">void png_decoder_poll </td>
<td>(</td>
<td class="paramtype">void&#160;</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Poll the PNG decoder. </p>
<p>This function polls the PNG decoder to handle any ongoing decoding tasks. </p>
</div>
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