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Viktor Reusch
2025-09-12 15:55:45 +02:00
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">// vi:set ft=cpp: -*- Mode: C++ -*-</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment">/*</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * (c) 2008-2009 Adam Lackorzynski &lt;adam@os.inf.tu-dresden.de&gt;,</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * Alexander Warg &lt;warg@os.inf.tu-dresden.de&gt;</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> * economic rights: Technische Universität Dresden (Germany)</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> *</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> * License: see LICENSE.spdx (in this directory or the directories above)</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="preprocessor">#pragma once</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span> </div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include &lt;<a class="code" href="env.html">l4/re/env</a>&gt;</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#include &lt;<a class="code" href="namespace.html">l4/re/namespace</a>&gt;</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="preprocessor">#include &lt;<a class="code" href="rm.html">l4/re/rm</a>&gt;</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#include &lt;<a class="code" href="util_2cap__alloc.html">l4/re/util/cap_alloc</a>&gt;</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="preprocessor">#include &lt;l4/re/util/env_ns&gt;</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#include &lt;l4/re/util/video/goos_fb&gt;</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include &lt;l4/re/video/goos&gt;</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> </div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceL4Re.html">L4Re</a> { <span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceL4Re_1_1Util.html">Util</a> { <span class="keyword">namespace </span>Video {</div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> </div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="keyword">class </span>Goos_fb</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span>{</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="keyword">private</span>:</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> L4::Cap&lt;L4Re::Video::Goos&gt; _goos;</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> L4Re::Video::View _view;</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> L4::Cap&lt;L4Re::Dataspace&gt; _buffer;</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> </div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">enum</span> Flags</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> {</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> F_dyn_buffer = 0x01,</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> F_dyn_view = 0x02,</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> F_dyn_goos = 0x04,</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> };</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> <span class="keywordtype">unsigned</span> _flags;</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> </div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> <span class="keywordtype">unsigned</span> _buffer_index;</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> </div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="keyword">private</span>:</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <span class="keywordtype">long</span> init()</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> {</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">using namespace </span>L4Re::Video;</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> </div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> Goos::Info gi;</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <span class="keywordtype">long</span> ret = _goos-&gt;info(&amp;gi);</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <span class="keywordflow">if</span> (ret &lt; 0)</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <span class="keywordflow">return</span> ret;</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> </div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="keywordflow">if</span> (gi.<a class="code hl_function" href="structL4Re_1_1Video_1_1Goos_1_1Info.html#a786bba9fa57f1156d7fea60a2130cb01">has_dynamic_views</a>())</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> {</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> ret = _goos-&gt;create_view(&amp;_view);</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keywordflow">if</span> (ret &lt; 0)</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keywordflow">return</span> ret;</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> </div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> _flags |= F_dyn_view;</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="keywordflow">else</span> <span class="comment">// we just assume view 0 to be our&#39;s and ignore other possible views</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> _view = _goos-&gt;view(0);</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> View::Info vi;</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> ret = _view.info(&amp;vi);</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <span class="keywordflow">if</span> (ret &lt; 0)</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <span class="keywordflow">return</span> ret;</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> _buffer = <a class="code hl_variable" href="group__l4re__cap__api.html#ga29e3dbeb3c8ed0609519c9df212c9c52">cap_alloc</a>.<a class="code hl_function" href="classL4Re_1_1Util_1_1__Cap__alloc.html#a0102af80b0c799eb9343ac1768a64692">alloc</a>&lt;L4Re::Dataspace&gt;();</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="keywordflow">if</span> (!_buffer)</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="keywordflow">return</span> -<a class="code hl_enumvalue" href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9af7f5d38973fbf298613b03a088541e27">L4_ENOMEM</a>;</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> </div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <span class="keywordflow">if</span> (vi.<a class="code hl_function" href="structL4Re_1_1Video_1_1View_1_1Info.html#aa2bb866b5612bf083fd7303e6f84afc1">has_static_buffer</a>())</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> ret = _goos-&gt;get_static_buffer(vi.<a class="code hl_variable" href="structL4Re_1_1Video_1_1View_1_1Info.html#a351184edc84831ac00d2cbaf24e85e9f">buffer_index</a>, _buffer);</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="keywordflow">if</span> (ret &lt; 0)</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <span class="keywordflow">return</span> ret;</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> <span class="keywordflow">else</span></div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> {</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> buffer_sz = gi.<a class="code hl_variable" href="structL4Re_1_1Video_1_1Goos_1_1Info.html#a3f72e3f0f69cd4649440b6ef75365515">pixel_info</a>.<a class="code hl_function" href="classL4Re_1_1Video_1_1Pixel__info.html#ad8c8e01fb6bea2676d390ddb64d679a8">bytes_per_pixel</a>() * gi.<a class="code hl_variable" href="structL4Re_1_1Video_1_1Goos_1_1Info.html#a36c21356d2ba773273c0d8c006c67cb5">width</a></div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> * gi.<a class="code hl_variable" href="structL4Re_1_1Video_1_1Goos_1_1Info.html#a35547303cc10a12cb54e8ba84b79d880">height</a>;</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> ret = _goos-&gt;create_buffer(buffer_sz, _buffer);</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="keywordflow">if</span> (ret &lt; 0)</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="keywordflow">return</span> ret;</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> </div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> _buffer_index = <span class="keyword">static_cast&lt;</span><span class="keywordtype">unsigned</span><span class="keyword">&gt;</span>(ret);</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> _flags |= F_dyn_buffer;</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> </div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <span class="comment">// use the allocated buffer, at offset 0</span></div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> vi.<a class="code hl_variable" href="structL4Re_1_1Video_1_1View_1_1Info.html#a351184edc84831ac00d2cbaf24e85e9f">buffer_index</a> = _buffer_index;</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> vi.<a class="code hl_variable" href="structL4Re_1_1Video_1_1View_1_1Info.html#a4aff63a96f7c9f1ca8179c089b3310c8">buffer_offset</a> = 0;</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> vi.<a class="code hl_variable" href="structL4Re_1_1Video_1_1View_1_1Info.html#a10dc91ab5d49a468df9d6e567abde60d">pixel_info</a> = gi.<a class="code hl_variable" href="structL4Re_1_1Video_1_1Goos_1_1Info.html#a3f72e3f0f69cd4649440b6ef75365515">pixel_info</a>;</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> vi.<a class="code hl_variable" href="structL4Re_1_1Video_1_1View_1_1Info.html#a852e02404702519021078051f9dab1a2">bytes_per_line</a> = gi.<a class="code hl_variable" href="structL4Re_1_1Video_1_1Goos_1_1Info.html#a36c21356d2ba773273c0d8c006c67cb5">width</a> * gi.<a class="code hl_variable" href="structL4Re_1_1Video_1_1Goos_1_1Info.html#a3f72e3f0f69cd4649440b6ef75365515">pixel_info</a>.<a class="code hl_function" href="classL4Re_1_1Video_1_1Pixel__info.html#ad8c8e01fb6bea2676d390ddb64d679a8">bytes_per_pixel</a>();</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> </div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="comment">// we want a fullscreen view</span></div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> vi.<a class="code hl_variable" href="structL4Re_1_1Video_1_1View_1_1Info.html#a381d417f823c03dd6bfa566cc949f4c6">xpos</a> = 0;</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> vi.<a class="code hl_variable" href="structL4Re_1_1Video_1_1View_1_1Info.html#aca893e357cdaf6729477d065aceec8cd">ypos</a> = 0;</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> vi.<a class="code hl_variable" href="structL4Re_1_1Video_1_1View_1_1Info.html#a1feaa33de5d1e61344496c9fac0e2c94">width</a> = gi.<a class="code hl_variable" href="structL4Re_1_1Video_1_1Goos_1_1Info.html#a36c21356d2ba773273c0d8c006c67cb5">width</a>;</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> vi.<a class="code hl_variable" href="structL4Re_1_1Video_1_1View_1_1Info.html#a1fba85e111b9d71681f8ff816d6fabcd">height</a> = gi.<a class="code hl_variable" href="structL4Re_1_1Video_1_1Goos_1_1Info.html#a35547303cc10a12cb54e8ba84b79d880">height</a>;</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> </div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> ret = _view.set_info(vi);</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keywordflow">if</span> (ret &lt; 0)</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <span class="keywordflow">return</span> ret;</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> </div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> ret = _view.push_top();</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="keywordflow">if</span> (ret &lt; 0)</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="keywordflow">return</span> ret;</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> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> }</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> Goos_fb(Goos_fb <span class="keyword">const</span> &amp;);</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="keywordtype">void</span> operator = (Goos_fb <span class="keyword">const</span> &amp;);</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> </div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span><span class="keyword">public</span>:</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> Goos_fb()</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> : _goos(<a class="code hl_enumvalue" href="group__l4__cap__api.html#ggafee0421c2fe0e5cfc59f17f16ea10879aff9320ed307e76cebfca6c2871136102">L4_INVALID_CAP</a>), _buffer(<a class="code hl_enumvalue" href="group__l4__cap__api.html#ggafee0421c2fe0e5cfc59f17f16ea10879aff9320ed307e76cebfca6c2871136102">L4_INVALID_CAP</a>), _flags(0), _buffer_index(0)</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> {}</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> </div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <span class="keywordtype">long</span> init(L4::Cap&lt;L4Re::Video::Goos&gt; goos)</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> {</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> _goos = goos;</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <span class="keywordflow">return</span> init();</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> }</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> </div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="keywordtype">long</span> init(<span class="keywordtype">char</span> <span class="keyword">const</span> *name)</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> Env_ns ns;</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> _goos = ns.query&lt;L4Re::Video::Goos&gt;(name);</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> <span class="keywordflow">if</span> (!_goos)</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> <span class="keywordflow">return</span> _goos.cap();</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> _flags |= F_dyn_goos;</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> </div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="keywordflow">return</span> init();</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> }</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> ~Goos_fb()</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> {</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="keywordflow">if</span> (!_goos.is_valid())</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="keywordflow">return</span>;</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> <span class="keywordflow">if</span> (_flags &amp; F_dyn_view)</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> _goos-&gt;delete_view(_view);</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> </div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> <span class="keywordflow">if</span> (_flags &amp; F_dyn_buffer)</div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> _goos-&gt;delete_buffer(_buffer_index);</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> </div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> <span class="keywordflow">if</span> (_buffer.is_valid())</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> <a class="code hl_variable" href="group__l4re__cap__api.html#ga29e3dbeb3c8ed0609519c9df212c9c52">cap_alloc</a>.<a class="code hl_function" href="classL4Re_1_1Util_1_1__Cap__alloc.html#a048ebd34dddce10a155faefc8aa73ec7">free</a>(_buffer);</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> </div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="keywordflow">if</span> (_flags &amp; F_dyn_goos)</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> <a class="code hl_variable" href="group__l4re__cap__api.html#ga29e3dbeb3c8ed0609519c9df212c9c52">cap_alloc</a>.<a class="code hl_function" href="classL4Re_1_1Util_1_1__Cap__alloc.html#a048ebd34dddce10a155faefc8aa73ec7">free</a>(_goos);</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> }</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> </div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> <span class="keywordtype">int</span> view_info(L4Re::Video::View::Info *info)</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> { <span class="keywordflow">return</span> _view.info(info); }</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> </div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> L4Re::Video::View <span class="keyword">const</span> *view()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> &amp;_view; }</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> L4Re::Video::View *view() { <span class="keywordflow">return</span> &amp;_view; }</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> </div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> L4::Cap&lt;L4Re::Dataspace&gt; buffer()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _buffer; }</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <span class="keywordtype">void</span> *attach_buffer()</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> {</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> <span class="keywordtype">void</span> *fb_addr = 0;</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> <span class="keywordflow">if</span> (!_goos)</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> <span class="keywordflow">return</span> <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> </div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> <span class="keywordtype">long</span> ret = <a class="code hl_function" href="classL4Re_1_1Env.html#a2706ca11e70845b0a29a5646c9fd54bc">L4Re::Env::env</a>()-&gt;<a class="code hl_function" href="classL4Re_1_1Env.html#aa5e8a6cc32d4c0741d929eb2ffbac7dc">rm</a>()</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> -&gt;attach(&amp;fb_addr, _buffer-&gt;size(),</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> <a class="code hl_enumvalue" href="structL4Re_1_1Rm_1_1F.html#adec4d26077e34d9586891ac0489e0041a067b0bc28378717b6962241c621caa0a">L4Re::Rm::F::Search_addr</a> | <a class="code hl_enumvalue" href="structL4Re_1_1Rm_1_1F.html#a9707a14d822d3f60aa6a97cb16b2a989a579e389b46e438a64f3f44d9cf19f26a">L4Re::Rm::F::RW</a>, _buffer,</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> 0, <a class="code hl_define" href="group__l4__memory__api.html#ga6ff8d213542e2b602ce10b8d9c4a7e0f">L4_SUPERPAGESHIFT</a>);</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> <span class="keywordflow">if</span> (ret &lt; 0)</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> <span class="keywordflow">return</span> <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> </div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> <span class="keywordflow">return</span> fb_addr;</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> }</div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> </div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <span class="keywordtype">int</span> refresh(<span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h)</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> { <span class="keywordflow">return</span> _view.refresh(x, y, w, h); }</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> </div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> L4::Cap&lt;L4Re::Video::Goos&gt; goos()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _goos; }</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span>};</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span>}}}</div>
<div class="ttc" id="aclassL4Re_1_1Env_html_a2706ca11e70845b0a29a5646c9fd54bc"><div class="ttname"><a href="classL4Re_1_1Env.html#a2706ca11e70845b0a29a5646c9fd54bc">L4Re::Env::env</a></div><div class="ttdeci">static Env const * env() noexcept</div><div class="ttdoc">Returns the initial environment for the current task.</div><div class="ttdef"><b>Definition</b> <a href="env_source.html#l00096">env:96</a></div></div>
<div class="ttc" id="aclassL4Re_1_1Env_html_aa5e8a6cc32d4c0741d929eb2ffbac7dc"><div class="ttname"><a href="classL4Re_1_1Env.html#aa5e8a6cc32d4c0741d929eb2ffbac7dc">L4Re::Env::rm</a></div><div class="ttdeci">L4::Cap&lt; Rm &gt; rm() const noexcept</div><div class="ttdoc">Object-capability to the region map.</div><div class="ttdef"><b>Definition</b> <a href="env_source.html#l00120">env:120</a></div></div>
<div class="ttc" id="aclassL4Re_1_1Util_1_1__Cap__alloc_html_a0102af80b0c799eb9343ac1768a64692"><div class="ttname"><a href="classL4Re_1_1Util_1_1__Cap__alloc.html#a0102af80b0c799eb9343ac1768a64692">L4Re::Util::_Cap_alloc::alloc</a></div><div class="ttdeci">L4::Cap&lt; void &gt; alloc() noexcept override</div><div class="ttdoc">Allocate a capability.</div><div class="ttdef"><b>Definition</b> <a href="cap__alloc__impl_8h_source.html#l00075">cap_alloc_impl.h:75</a></div></div>
<div class="ttc" id="aclassL4Re_1_1Util_1_1__Cap__alloc_html_a048ebd34dddce10a155faefc8aa73ec7"><div class="ttname"><a href="classL4Re_1_1Util_1_1__Cap__alloc.html#a048ebd34dddce10a155faefc8aa73ec7">L4Re::Util::_Cap_alloc::free</a></div><div class="ttdeci">void free(L4::Cap&lt; void &gt; cap, l4_cap_idx_t task=L4_INVALID_CAP, unsigned unmap_flags=L4_FP_ALL_SPACES) noexcept override</div><div class="ttdoc">Free a capability.</div><div class="ttdef"><b>Definition</b> <a href="cap__alloc__impl_8h_source.html#l00085">cap_alloc_impl.h:85</a></div></div>
<div class="ttc" id="aclassL4Re_1_1Video_1_1Pixel__info_html_ad8c8e01fb6bea2676d390ddb64d679a8"><div class="ttname"><a href="classL4Re_1_1Video_1_1Pixel__info.html#ad8c8e01fb6bea2676d390ddb64d679a8">L4Re::Video::Pixel_info::bytes_per_pixel</a></div><div class="ttdeci">unsigned char bytes_per_pixel() const</div><div class="ttdoc">Query size of pixel in bytes.</div><div class="ttdef"><b>Definition</b> <a href="colors_source.html#l00150">colors:150</a></div></div>
<div class="ttc" id="aenv_html"><div class="ttname"><a href="env.html">env</a></div><div class="ttdoc">Environment interface.</div></div>
<div class="ttc" id="agroup__l4__cap__api_html_ggafee0421c2fe0e5cfc59f17f16ea10879aff9320ed307e76cebfca6c2871136102"><div class="ttname"><a href="group__l4__cap__api.html#ggafee0421c2fe0e5cfc59f17f16ea10879aff9320ed307e76cebfca6c2871136102">L4_INVALID_CAP</a></div><div class="ttdeci">@ L4_INVALID_CAP</div><div class="ttdoc">Invalid capability selector.</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2consts_8h_source.html#l00153">consts.h:153</a></div></div>
<div class="ttc" id="agroup__l4__error__api_html_ggab4c8abc71ffa221a25c1ca5840a354f9af7f5d38973fbf298613b03a088541e27"><div class="ttname"><a href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9af7f5d38973fbf298613b03a088541e27">L4_ENOMEM</a></div><div class="ttdeci">@ L4_ENOMEM</div><div class="ttdoc">No memory.</div><div class="ttdef"><b>Definition</b> <a href="err_8h_source.html#l00039">err.h:39</a></div></div>
<div class="ttc" id="agroup__l4__memory__api_html_ga6ff8d213542e2b602ce10b8d9c4a7e0f"><div class="ttname"><a href="group__l4__memory__api.html#ga6ff8d213542e2b602ce10b8d9c4a7e0f">L4_SUPERPAGESHIFT</a></div><div class="ttdeci">#define L4_SUPERPAGESHIFT</div><div class="ttdoc">Size of a large page, log2-based.</div><div class="ttdef"><b>Definition</b> <a href="arm_2l4_2sys_2consts_8h_source.html#l00031">consts.h:31</a></div></div>
<div class="ttc" id="agroup__l4re__cap__api_html_ga29e3dbeb3c8ed0609519c9df212c9c52"><div class="ttname"><a href="group__l4re__cap__api.html#ga29e3dbeb3c8ed0609519c9df212c9c52">L4Re::Util::cap_alloc</a></div><div class="ttdeci">_Cap_alloc &amp; cap_alloc</div><div class="ttdoc">Capability allocator.</div></div>
<div class="ttc" id="anamespaceL4Re_1_1Util_html"><div class="ttname"><a href="namespaceL4Re_1_1Util.html">L4Re::Util</a></div><div class="ttdoc">Documentation of the L4 Runtime Environment utility functionality in C++.</div><div class="ttdef"><b>Definition</b> <a href="pkg_2l4re-core_2l4re_2doc_2l4re_8dox_source.html#l00021">l4re.dox:21</a></div></div>
<div class="ttc" id="anamespaceL4Re_html"><div class="ttname"><a href="namespaceL4Re.html">L4Re</a></div><div class="ttdoc">L4Re C++ Interfaces.</div><div class="ttdef"><b>Definition</b> <a href="cmd__control_source.html#l00014">cmd_control:14</a></div></div>
<div class="ttc" id="anamespace_html"><div class="ttname"><a href="namespace.html">namespace</a></div><div class="ttdoc">Namespace interface.</div></div>
<div class="ttc" id="arm_html"><div class="ttname"><a href="rm.html">rm</a></div><div class="ttdoc">Region mapper interface.</div></div>
<div class="ttc" id="astructL4Re_1_1Rm_1_1F_html_a9707a14d822d3f60aa6a97cb16b2a989a579e389b46e438a64f3f44d9cf19f26a"><div class="ttname"><a href="structL4Re_1_1Rm_1_1F.html#a9707a14d822d3f60aa6a97cb16b2a989a579e389b46e438a64f3f44d9cf19f26a">L4Re::Rm::F::RW</a></div><div class="ttdeci">@ RW</div><div class="ttdoc">Readable and writable region.</div><div class="ttdef"><b>Definition</b> <a href="rm_source.html#l00139">rm:139</a></div></div>
<div class="ttc" id="astructL4Re_1_1Rm_1_1F_html_adec4d26077e34d9586891ac0489e0041a067b0bc28378717b6962241c621caa0a"><div class="ttname"><a href="structL4Re_1_1Rm_1_1F.html#adec4d26077e34d9586891ac0489e0041a067b0bc28378717b6962241c621caa0a">L4Re::Rm::F::Search_addr</a></div><div class="ttdeci">@ Search_addr</div><div class="ttdoc">Search for a suitable address range.</div><div class="ttdef"><b>Definition</b> <a href="rm_source.html#l00114">rm:114</a></div></div>
<div class="ttc" id="astructL4Re_1_1Video_1_1Goos_1_1Info_html_a35547303cc10a12cb54e8ba84b79d880"><div class="ttname"><a href="structL4Re_1_1Video_1_1Goos_1_1Info.html#a35547303cc10a12cb54e8ba84b79d880">L4Re::Video::Goos::Info::height</a></div><div class="ttdeci">unsigned long height</div><div class="ttdoc">Height.</div><div class="ttdef"><b>Definition</b> <a href="goos_source.html#l00240">goos:240</a></div></div>
<div class="ttc" id="astructL4Re_1_1Video_1_1Goos_1_1Info_html_a36c21356d2ba773273c0d8c006c67cb5"><div class="ttname"><a href="structL4Re_1_1Video_1_1Goos_1_1Info.html#a36c21356d2ba773273c0d8c006c67cb5">L4Re::Video::Goos::Info::width</a></div><div class="ttdeci">unsigned long width</div><div class="ttdoc">Width.</div><div class="ttdef"><b>Definition</b> <a href="goos_source.html#l00239">goos:239</a></div></div>
<div class="ttc" id="astructL4Re_1_1Video_1_1Goos_1_1Info_html_a3f72e3f0f69cd4649440b6ef75365515"><div class="ttname"><a href="structL4Re_1_1Video_1_1Goos_1_1Info.html#a3f72e3f0f69cd4649440b6ef75365515">L4Re::Video::Goos::Info::pixel_info</a></div><div class="ttdeci">Pixel_info pixel_info</div><div class="ttdoc">Pixel information.</div><div class="ttdef"><b>Definition</b> <a href="goos_source.html#l00244">goos:244</a></div></div>
<div class="ttc" id="astructL4Re_1_1Video_1_1Goos_1_1Info_html_a786bba9fa57f1156d7fea60a2130cb01"><div class="ttname"><a href="structL4Re_1_1Video_1_1Goos_1_1Info.html#a786bba9fa57f1156d7fea60a2130cb01">L4Re::Video::Goos::Info::has_dynamic_views</a></div><div class="ttdeci">bool has_dynamic_views() const</div><div class="ttdoc">Return whether dynamic view are supported.</div><div class="ttdef"><b>Definition</b> <a href="goos_source.html#l00252">goos:252</a></div></div>
<div class="ttc" id="astructL4Re_1_1Video_1_1View_1_1Info_html_a10dc91ab5d49a468df9d6e567abde60d"><div class="ttname"><a href="structL4Re_1_1Video_1_1View_1_1Info.html#a10dc91ab5d49a468df9d6e567abde60d">L4Re::Video::View::Info::pixel_info</a></div><div class="ttdeci">Pixel_info pixel_info</div><div class="ttdoc">Pixel information.</div><div class="ttdef"><b>Definition</b> <a href="goos_source.html#l00102">goos:102</a></div></div>
<div class="ttc" id="astructL4Re_1_1Video_1_1View_1_1Info_html_a1fba85e111b9d71681f8ff816d6fabcd"><div class="ttname"><a href="structL4Re_1_1Video_1_1View_1_1Info.html#a1fba85e111b9d71681f8ff816d6fabcd">L4Re::Video::View::Info::height</a></div><div class="ttdeci">unsigned long height</div><div class="ttdoc">Height of the view in pixels.</div><div class="ttdef"><b>Definition</b> <a href="goos_source.html#l00099">goos:99</a></div></div>
<div class="ttc" id="astructL4Re_1_1Video_1_1View_1_1Info_html_a1feaa33de5d1e61344496c9fac0e2c94"><div class="ttname"><a href="structL4Re_1_1Video_1_1View_1_1Info.html#a1feaa33de5d1e61344496c9fac0e2c94">L4Re::Video::View::Info::width</a></div><div class="ttdeci">unsigned long width</div><div class="ttdoc">Width of the view in pixels.</div><div class="ttdef"><b>Definition</b> <a href="goos_source.html#l00098">goos:98</a></div></div>
<div class="ttc" id="astructL4Re_1_1Video_1_1View_1_1Info_html_a351184edc84831ac00d2cbaf24e85e9f"><div class="ttname"><a href="structL4Re_1_1Video_1_1View_1_1Info.html#a351184edc84831ac00d2cbaf24e85e9f">L4Re::Video::View::Info::buffer_index</a></div><div class="ttdeci">unsigned buffer_index</div><div class="ttdoc">Number of the buffer used for this view.</div><div class="ttdef"><b>Definition</b> <a href="goos_source.html#l00103">goos:103</a></div></div>
<div class="ttc" id="astructL4Re_1_1Video_1_1View_1_1Info_html_a381d417f823c03dd6bfa566cc949f4c6"><div class="ttname"><a href="structL4Re_1_1Video_1_1View_1_1Info.html#a381d417f823c03dd6bfa566cc949f4c6">L4Re::Video::View::Info::xpos</a></div><div class="ttdeci">unsigned long xpos</div><div class="ttdoc">X position in pixels of the view in the Goos.</div><div class="ttdef"><b>Definition</b> <a href="goos_source.html#l00096">goos:96</a></div></div>
<div class="ttc" id="astructL4Re_1_1Video_1_1View_1_1Info_html_a4aff63a96f7c9f1ca8179c089b3310c8"><div class="ttname"><a href="structL4Re_1_1Video_1_1View_1_1Info.html#a4aff63a96f7c9f1ca8179c089b3310c8">L4Re::Video::View::Info::buffer_offset</a></div><div class="ttdeci">unsigned long buffer_offset</div><div class="ttdoc">Offset in the memory buffer in bytes.</div><div class="ttdef"><b>Definition</b> <a href="goos_source.html#l00100">goos:100</a></div></div>
<div class="ttc" id="astructL4Re_1_1Video_1_1View_1_1Info_html_a852e02404702519021078051f9dab1a2"><div class="ttname"><a href="structL4Re_1_1Video_1_1View_1_1Info.html#a852e02404702519021078051f9dab1a2">L4Re::Video::View::Info::bytes_per_line</a></div><div class="ttdeci">unsigned long bytes_per_line</div><div class="ttdoc">Bytes per line.</div><div class="ttdef"><b>Definition</b> <a href="goos_source.html#l00101">goos:101</a></div></div>
<div class="ttc" id="astructL4Re_1_1Video_1_1View_1_1Info_html_aa2bb866b5612bf083fd7303e6f84afc1"><div class="ttname"><a href="structL4Re_1_1Video_1_1View_1_1Info.html#aa2bb866b5612bf083fd7303e6f84afc1">L4Re::Video::View::Info::has_static_buffer</a></div><div class="ttdeci">bool has_static_buffer() const</div><div class="ttdoc">Return whether the view has a static buffer.</div><div class="ttdef"><b>Definition</b> <a href="goos_source.html#l00106">goos:106</a></div></div>
<div class="ttc" id="astructL4Re_1_1Video_1_1View_1_1Info_html_aca893e357cdaf6729477d065aceec8cd"><div class="ttname"><a href="structL4Re_1_1Video_1_1View_1_1Info.html#aca893e357cdaf6729477d065aceec8cd">L4Re::Video::View::Info::ypos</a></div><div class="ttdeci">unsigned long ypos</div><div class="ttdoc">Y position in pixels of the view in the Goos.</div><div class="ttdef"><b>Definition</b> <a href="goos_source.html#l00097">goos:97</a></div></div>
<div class="ttc" id="autil_2cap__alloc_html"><div class="ttname"><a href="util_2cap__alloc.html">cap_alloc</a></div><div class="ttdoc">Capability allocator.</div></div>
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