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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> libSDL2pp - C++ bindings/wrapper for SDL2</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> Copyright (C) 2014-2016 Dmitry Marakasov <[email protected]></span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"></span> </div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> This software is provided 'as-is', without any express or implied</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> warranty. In no event will the authors be held liable for any damages</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> arising from the use of this software.</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"></span> </div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"> Permission is granted to anyone to use this software for any purpose,</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> including commercial applications, and to alter it and redistribute it</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> freely, subject to the following restrictions:</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"></span> </div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> 1. The origin of this software must not be misrepresented; you must not</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment"> claim that you wrote the original software. If you use this software</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment"> in a product, an acknowledgment in the product documentation would be</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment"> appreciated but is not required.</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment"> 2. Altered source versions must be plainly marked as such, and must not be</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="comment"> misrepresented as being the original software.</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="comment"> 3. This notice may not be removed or altered from any source distribution.</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="comment">*/</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> </div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#ifndef SDL2PP_STREAMRWOPS_HH</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#define SDL2PP_STREAMRWOPS_HH</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> </div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include <SDL2pp/RWops.hh></span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> </div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include <cassert></span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#include <stdexcept></span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="preprocessor">#include <iostream></span></div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="preprocessor">#include <type_traits></span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> </div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="keyword">namespace </span>SDL2pp {</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> </div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span><span class="keyword">template</span> <<span class="keyword">class</span> S></div>
<div class="foldopen" id="foldopen00051" data-start="{" data-end="};">
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"><a class="line" href="classSDL2pp_1_1StreamRWops.html"> 51</a></span><span class="keyword">class </span><a class="code hl_class" href="classSDL2pp_1_1StreamRWops.html">StreamRWops</a> : <span class="keyword">public</span> <a class="code hl_class" href="classSDL2pp_1_1CustomRWops.html">CustomRWops</a> {</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="comment">// since STL streams have different pointers for reading and writing,</span></div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <span class="comment">// supporting both at the same time is impossible</span></div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="keyword">static_assert</span>(!(std::is_base_of<std::istream, S>::value && std::is_base_of<std::ostream, S>::value), <span class="stringliteral">"StreamRWops does not support reading and writing at the same time"</span>);</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> </div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span><span class="keyword">protected</span>:</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"><a class="line" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9"> 57</a></span> S& <a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>; </div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> </div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span><span class="keyword">private</span>:</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keyword">template</span> <<span class="keyword">class</span> SS></div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <span class="keyword">typename</span> std::enable_if<std::is_base_of<std::istream, SS>::value && !std::is_base_of<std::ostream, SS>::value, <span class="keywordtype">void</span>>::type SeekHelper(<span class="keyword">typename</span> SS::off_type off, std::ios_base::seekdir dir) {</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.seekg(off, dir);</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> }</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> </div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="keyword">template</span> <<span class="keyword">class</span> SS></div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="keyword">typename</span> std::enable_if<!std::is_base_of<std::istream, SS>::value && std::is_base_of<std::ostream, SS>::value, <span class="keywordtype">void</span>>::type SeekHelper(<span class="keyword">typename</span> SS::off_type off, std::ios_base::seekdir dir) {</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.seekp(off, dir);</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> }</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> </div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <span class="keyword">template</span> <<span class="keyword">class</span> SS></div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="keyword">typename</span> std::enable_if<std::is_base_of<std::istream, SS>::value && !std::is_base_of<std::ostream, SS>::value, <span class="keyword">typename</span> SS::off_type>::type TellHelper() {</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <span class="keywordflow">return</span> <a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.tellg();</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> }</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> </div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="keyword">template</span> <<span class="keyword">class</span> SS></div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <span class="keyword">typename</span> std::enable_if<!std::is_base_of<std::istream, SS>::value && std::is_base_of<std::ostream, SS>::value, <span class="keyword">typename</span> SS::off_type>::type TellHelper() {</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <span class="keywordflow">return</span> <a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.tellp();</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> }</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> </div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="keyword">template</span> <<span class="keyword">class</span> SS></div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> <span class="keyword">typename</span> std::enable_if<std::is_base_of<std::istream, SS>::value, <span class="keywordtype">size_t</span>>::type ReadHelper(<span class="keywordtype">void</span>* ptr, <span class="keywordtype">size_t</span> size, <span class="keywordtype">size_t</span> maxnum) {</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> <a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.read(<span class="keyword">static_cast<</span><span class="keywordtype">char</span>*<span class="keyword">></span>(ptr), size * maxnum);</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> </div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <span class="comment">// http://en.cppreference.com/w/cpp/io/streamsize:</span></div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <span class="comment">// "Except in the constructors of std::strstreambuf,</span></div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <span class="comment">// negative values of std::streamsize are never used"</span></div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> <span class="keywordtype">size_t</span> nread = <span class="keyword">static_cast<</span><span class="keywordtype">size_t</span><span class="keyword">></span>(<a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.gcount());</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> </div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="comment">// eof is OK</span></div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.rdstate() == (std::ios_base::eofbit | std::ios_base::failbit))</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.clear();</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> </div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <span class="keywordflow">if</span> (nread != size * maxnum) {</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="comment">// short read</span></div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="keywordtype">char</span>* pos = <span class="keyword">static_cast<</span><span class="keywordtype">char</span>*<span class="keyword">></span>(ptr);</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> pos += nread;</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> </div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keywordtype">size_t</span> count = nread % size;</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> </div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> <span class="comment">// put partially read object back into the stream</span></div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> <span class="keywordflow">while</span> (count != 0) {</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.putback(*--pos);</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> --count;</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> }</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> }</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> </div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="keywordflow">return</span> nread / size;</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> }</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> </div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="keyword">template</span> <<span class="keyword">class</span> SS></div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> <span class="keyword">typename</span> std::enable_if<!std::is_base_of<std::istream, SS>::value, <span class="keywordtype">size_t</span>>::type ReadHelper(<span class="keywordtype">void</span>*, <span class="keywordtype">size_t</span>, <span class="keywordtype">size_t</span>) {</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> }</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> </div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> <span class="keyword">template</span> <<span class="keyword">class</span> SS></div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> <span class="keyword">typename</span> std::enable_if<std::is_base_of<std::ostream, SS>::value, <span class="keywordtype">size_t</span>>::type WriteHelper(<span class="keyword">const</span> <span class="keywordtype">void</span>* ptr, <span class="keywordtype">size_t</span> size, <span class="keywordtype">size_t</span> num) {</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.write(<span class="keyword">static_cast<</span><span class="keyword">const </span><span class="keywordtype">char</span>*<span class="keyword">></span>(ptr), size * num);</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> <span class="comment">// XXX: there seem to be no reliable way to tell how much</span></div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> <span class="comment">// was actually written</span></div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.rdstate() & std::ios_base::badbit)</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> <span class="keywordflow">return</span> num;</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> }</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> </div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <span class="keyword">template</span> <<span class="keyword">class</span> SS></div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="keyword">typename</span> std::enable_if<!std::is_base_of<std::ostream, SS>::value, <span class="keywordtype">size_t</span>>::type WriteHelper(<span class="keyword">const</span> <span class="keywordtype">void</span>*, <span class="keywordtype">size_t</span>, <span class="keywordtype">size_t</span>) {</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> }</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> </div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> <span class="keyword">template</span> <<span class="keyword">class</span> SS></div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keyword">typename</span> std::enable_if<std::is_base_of<std::ostream, SS>::value, <span class="keywordtype">int</span>>::type CloseHelper() {</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.flush();</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> <span class="keywordflow">return</span> (<a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.rdstate() & std::ios_base::badbit) ? -1 : 0;</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> }</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> </div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="keyword">template</span> <<span class="keyword">class</span> SS></div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="keyword">typename</span> std::enable_if<!std::is_base_of<std::ostream, SS>::value, <span class="keywordtype">int</span>>::type CloseHelper() {</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> }</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> </div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span><span class="keyword">public</span>:</div>
<div class="foldopen" id="foldopen00148" data-start="{" data-end="}">
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"><a class="line" href="classSDL2pp_1_1StreamRWops.html#a19fee509de7e15c60eac560592d2470e"> 148</a></span> <a class="code hl_function" href="classSDL2pp_1_1StreamRWops.html#a19fee509de7e15c60eac560592d2470e">StreamRWops</a>(S& stream) : <a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>(stream) {</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> }</div>
</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> </div>
<div class="foldopen" id="foldopen00160" data-start="{" data-end="}">
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"><a class="line" href="classSDL2pp_1_1StreamRWops.html#a0b0ad832e6c49c21e8b0de4c595450e2"> 160</a></span> <span class="keyword">virtual</span> Sint64 <a class="code hl_function" href="classSDL2pp_1_1StreamRWops.html#a0b0ad832e6c49c21e8b0de4c595450e2">Size</a>()<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> Sint64 old_pos = TellHelper<S>();</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> <span class="keywordflow">if</span> (old_pos == -1) <span class="comment">// not seekable?</span></div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> <span class="keywordflow">return</span> -1;</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> SeekHelper<S>(0, std::ios_base::end);</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> Sint64 size = TellHelper<S>();</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> SeekHelper<S>(old_pos, std::ios_base::beg);</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> assert(TellHelper<S>() == old_pos); <span class="comment">// make sure we're back to where we were</span></div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> <span class="keywordflow">return</span> size;</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> }</div>
</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> </div>
<div class="foldopen" id="foldopen00184" data-start="{" data-end="}">
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"><a class="line" href="classSDL2pp_1_1StreamRWops.html#a7d257204670a124f5a77f2726c6363ea"> 184</a></span> <span class="keyword">virtual</span> Sint64 <a class="code hl_function" href="classSDL2pp_1_1StreamRWops.html#a7d257204670a124f5a77f2726c6363ea">Seek</a>(Sint64 offset, <span class="keywordtype">int</span> whence)<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> <span class="keywordflow">switch</span> (whence) {</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> <span class="keywordflow">case</span> RW_SEEK_SET:</div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> SeekHelper<S>(offset, std::ios_base::beg);</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> <span class="keywordflow">case</span> RW_SEEK_CUR:</div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> SeekHelper<S>(offset, std::ios_base::cur);</div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> <span class="keywordflow">case</span> RW_SEEK_END:</div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> SeekHelper<S>(offset, std::ios_base::end);</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> <span class="keywordflow">default</span>:</div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> <span class="keywordflow">throw</span> std::logic_error(<span class="stringliteral">"Unexpected whence value for StreamRWops::Seek"</span>);</div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> }</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> <span class="keywordflow">return</span> TellHelper<S>();</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> }</div>
</div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> </div>
<div class="foldopen" id="foldopen00214" data-start="{" data-end="}">
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"><a class="line" href="classSDL2pp_1_1StreamRWops.html#a60d6e9eb4ee3ed6484ba44a2e49f6608"> 214</a></span> <span class="keyword">virtual</span> <span class="keywordtype">size_t</span> <a class="code hl_function" href="classSDL2pp_1_1StreamRWops.html#a60d6e9eb4ee3ed6484ba44a2e49f6608">Read</a>(<span class="keywordtype">void</span>* ptr, <span class="keywordtype">size_t</span> size, <span class="keywordtype">size_t</span> maxnum)<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> <span class="keywordflow">return</span> ReadHelper<S>(ptr, size, maxnum);</div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> }</div>
</div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> </div>
<div class="foldopen" id="foldopen00231" data-start="{" data-end="}">
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"><a class="line" href="classSDL2pp_1_1StreamRWops.html#a7758763a8ce9c9b9547fdb983e8b75ba"> 231</a></span> <span class="keyword">virtual</span> <span class="keywordtype">size_t</span> <a class="code hl_function" href="classSDL2pp_1_1StreamRWops.html#a7758763a8ce9c9b9547fdb983e8b75ba">Write</a>(<span class="keyword">const</span> <span class="keywordtype">void</span>* ptr, <span class="keywordtype">size_t</span> size, <span class="keywordtype">size_t</span> num)<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> <span class="keywordflow">return</span> WriteHelper<S>(ptr, size, num);</div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> }</div>
</div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> </div>
<div class="foldopen" id="foldopen00244" data-start="{" data-end="}">
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"><a class="line" href="classSDL2pp_1_1StreamRWops.html#a392e5fa933469a82789164865fd45d0f"> 244</a></span> <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code hl_function" href="classSDL2pp_1_1StreamRWops.html#a392e5fa933469a82789164865fd45d0f">Close</a>()<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> <span class="keywordflow">return</span> CloseHelper<S>();</div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> }</div>
</div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span>};</div>
</div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> </div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span>}</div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> </div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span><span class="preprocessor">#endif</span></div>
<div class="ttc" id="aclassSDL2pp_1_1CustomRWops_html"><div class="ttname"><a href="classSDL2pp_1_1CustomRWops.html">SDL2pp::CustomRWops</a></div><div class="ttdoc">Base class for custom RWops.</div><div class="ttdef"><b>Definition</b> RWops.hh:48</div></div>
<div class="ttc" id="aclassSDL2pp_1_1StreamRWops_html"><div class="ttname"><a href="classSDL2pp_1_1StreamRWops.html">SDL2pp::StreamRWops</a></div><div class="ttdoc">RWops adaptor for STL streams.</div><div class="ttdef"><b>Definition</b> StreamRWops.hh:51</div></div>
<div class="ttc" id="aclassSDL2pp_1_1StreamRWops_html_a0b0ad832e6c49c21e8b0de4c595450e2"><div class="ttname"><a href="classSDL2pp_1_1StreamRWops.html#a0b0ad832e6c49c21e8b0de4c595450e2">SDL2pp::StreamRWops::Size</a></div><div class="ttdeci">virtual Sint64 Size() override</div><div class="ttdoc">Get the size of the data stream.</div><div class="ttdef"><b>Definition</b> StreamRWops.hh:160</div></div>
<div class="ttc" id="aclassSDL2pp_1_1StreamRWops_html_a19fee509de7e15c60eac560592d2470e"><div class="ttname"><a href="classSDL2pp_1_1StreamRWops.html#a19fee509de7e15c60eac560592d2470e">SDL2pp::StreamRWops::StreamRWops</a></div><div class="ttdeci">StreamRWops(S &stream)</div><div class="ttdoc">Construct StreamRWops for specified stream.</div><div class="ttdef"><b>Definition</b> StreamRWops.hh:148</div></div>
<div class="ttc" id="aclassSDL2pp_1_1StreamRWops_html_a392e5fa933469a82789164865fd45d0f"><div class="ttname"><a href="classSDL2pp_1_1StreamRWops.html#a392e5fa933469a82789164865fd45d0f">SDL2pp::StreamRWops::Close</a></div><div class="ttdeci">virtual int Close() override</div><div class="ttdoc">Close stream.</div><div class="ttdef"><b>Definition</b> StreamRWops.hh:244</div></div>
<div class="ttc" id="aclassSDL2pp_1_1StreamRWops_html_a53a7257037c0420f652a21c0d875ccb9"><div class="ttname"><a href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">SDL2pp::StreamRWops::stream_</a></div><div class="ttdeci">S & stream_</div><div class="ttdoc">Reference to stream.</div><div class="ttdef"><b>Definition</b> StreamRWops.hh:57</div></div>
<div class="ttc" id="aclassSDL2pp_1_1StreamRWops_html_a60d6e9eb4ee3ed6484ba44a2e49f6608"><div class="ttname"><a href="classSDL2pp_1_1StreamRWops.html#a60d6e9eb4ee3ed6484ba44a2e49f6608">SDL2pp::StreamRWops::Read</a></div><div class="ttdeci">virtual size_t Read(void *ptr, size_t size, size_t maxnum) override</div><div class="ttdoc">Read from a stream.</div><div class="ttdef"><b>Definition</b> StreamRWops.hh:214</div></div>
<div class="ttc" id="aclassSDL2pp_1_1StreamRWops_html_a7758763a8ce9c9b9547fdb983e8b75ba"><div class="ttname"><a href="classSDL2pp_1_1StreamRWops.html#a7758763a8ce9c9b9547fdb983e8b75ba">SDL2pp::StreamRWops::Write</a></div><div class="ttdeci">virtual size_t Write(const void *ptr, size_t size, size_t num) override</div><div class="ttdoc">Write to a stream.</div><div class="ttdef"><b>Definition</b> StreamRWops.hh:231</div></div>
<div class="ttc" id="aclassSDL2pp_1_1StreamRWops_html_a7d257204670a124f5a77f2726c6363ea"><div class="ttname"><a href="classSDL2pp_1_1StreamRWops.html#a7d257204670a124f5a77f2726c6363ea">SDL2pp::StreamRWops::Seek</a></div><div class="ttdeci">virtual Sint64 Seek(Sint64 offset, int whence) override</div><div class="ttdoc">Seek within the stream.</div><div class="ttdef"><b>Definition</b> StreamRWops.hh:184</div></div>
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