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<div class="title">al_EasyVAO.hpp</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#ifndef INCLUDE_AL_EASYVAO_HPP</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="preprocessor">#define INCLUDE_AL_EASYVAO_HPP</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>  </div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">/* VAO wrapper ready to receive mesh data</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"></span> </div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> - wraps a vao for render call and vertex buffer handles for attributes</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> - This class does not store cpu side data</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> - Any user data format could be used</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> as long as they are stored as contiguous memory</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"></span> </div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> Keehong Youn, 2017, [email protected]</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">*/</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>  </div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "al/graphics/al_BufferObject.hpp"</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "al/graphics/al_VAO.hpp"</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  </div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">namespace </span><a class="code" href="namespaceal.html">al</a> {</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  </div>
<div class="line"><a name="l00023"></a><span class="lineno"><a class="line" href="structal_1_1_easy_v_a_o.html"> 23</a></span> <span class="keyword">struct </span><a class="code" href="structal_1_1_easy_v_a_o.html">EasyVAO</a> : <a class="code" href="classal_1_1_v_a_o.html">VAO</a> {</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="comment">// attribute locations specified in default shader</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="comment">// layout (location = n) in vertex shader</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keyword">enum</span> AttribLayout : <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> {</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  LAYOUT_POSITION = 0,</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  LAYOUT_COLOR = 1,</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  LAYOUT_TEXCOORD = 2,</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  LAYOUT_NORMAL = 3,</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  };</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  </div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="comment">// attribute type specified in default shader</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="comment">// 3 -> vec3, etc ...</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keyword">enum</span> AttribDimension : <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> {</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  DIMENSION_POSITION = 3,</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  DIMENSION_COLOR = 4,</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  DIMENSION_TEXCOORD = 2,</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  DIMENSION_NORMAL = 3,</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  };</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  </div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="comment">// buffer to hold attribute data (position, color, texcoord, ...)</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="structal_1_1_easy_v_a_o_1_1_mesh_attrib.html"> 43</a></span>  <span class="keyword">struct </span><a class="code" href="structal_1_1_easy_v_a_o_1_1_mesh_attrib.html">MeshAttrib</a> {</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> layoutIndex; <span class="comment">// attrib layout?</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> dataDimension; <span class="comment">// vec3? vec4? ...</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <a class="code" href="classal_1_1_buffer_object.html">BufferObject</a> buffer;</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <a class="code" href="structal_1_1_easy_v_a_o_1_1_mesh_attrib.html">MeshAttrib</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> d)</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  : layoutIndex(i), dataDimension(d) {}</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  };</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  </div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordtype">void</span> update(<span class="keywordtype">void</span>* data, <span class="keywordtype">size_t</span> typeSize, <span class="keywordtype">size_t</span> arraySize, <a class="code" href="structal_1_1_easy_v_a_o_1_1_mesh_attrib.html">MeshAttrib</a>& attrib,</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> dataType = GL_FLOAT);</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  </div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordtype">void</span> updatePosition(T* data, <span class="keywordtype">int</span> arraySize,</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> dataType = GL_FLOAT) {</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  mNumVertices = <span class="keyword">static_cast<</span><span class="keywordtype">int</span><span class="keyword">></span>(arraySize);</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  update(data, <span class="keyword">sizeof</span>(T), arraySize, mPositionAtt, dataType);</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  }</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  </div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordtype">void</span> updateColor(T* data, <span class="keywordtype">size_t</span> arraySize,</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> dataType = GL_FLOAT) {</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  update(data, <span class="keyword">sizeof</span>(T), arraySize, mColorAtt, dataType);</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  }</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  </div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordtype">void</span> updateTexcoord(T* data, <span class="keywordtype">size_t</span> arraySize,</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> dataType = GL_FLOAT) {</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  update(data, <span class="keyword">sizeof</span>(T), arraySize, mTexcoord2dAtt, dataType);</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  }</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  </div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordtype">void</span> updateNormal(T* data, <span class="keywordtype">size_t</span> arraySize,</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> dataType = GL_FLOAT) {</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  update(data, <span class="keyword">sizeof</span>(T), arraySize, mNormalAtt, dataType);</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  }</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  </div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="comment">// indices must be unsigned int</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordtype">void</span> updateIndices(<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>* data, <span class="keywordtype">size_t</span> size);</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  </div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="comment">// GL_TRIANGLES, GL_TRIANGLE_STRIP, ...</span></div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordtype">void</span> primitive(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> prim);</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  </div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordtype">void</span> draw();</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  </div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordtype">void</span> updateWithoutBinding(<span class="keyword">const</span> <span class="keywordtype">void</span>* data, <span class="keywordtype">size_t</span> typeSize, <span class="keywordtype">size_t</span> arraySize,</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  MeshAttrib& attrib,</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> dataType = GL_FLOAT);</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  </div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> mGLPrimMode = GL_TRIANGLES;</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordtype">int</span> mNumVertices = 0;</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordtype">int</span> mNumIndices = 0;</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  MeshAttrib mPositionAtt{LAYOUT_POSITION, DIMENSION_POSITION},</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  mColorAtt{LAYOUT_COLOR, DIMENSION_COLOR},</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  mTexcoord2dAtt{LAYOUT_TEXCOORD, DIMENSION_TEXCOORD},</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  mNormalAtt{LAYOUT_NORMAL, DIMENSION_NORMAL};</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  </div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  BufferObject mIndexBuffer;</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> };</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  </div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> } <span class="comment">// namespace al</span></div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  </div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="preprocessor">#endif</span></div>
<div class="ttc" id="aclassal_1_1_buffer_object_html"><div class="ttname"><a href="classal_1_1_buffer_object.html">al::BufferObject</a></div><div class="ttdef"><b>Definition:</b> <a href="al___buffer_object_8hpp_source.html#l00076">al_BufferObject.hpp:76</a></div></div>
<div class="ttc" id="aclassal_1_1_v_a_o_html"><div class="ttname"><a href="classal_1_1_v_a_o.html">al::VAO</a></div><div class="ttdoc">VAO class.</div><div class="ttdef"><b>Definition:</b> <a href="al___v_a_o_8hpp_source.html#l00018">al_VAO.hpp:18</a></div></div>
<div class="ttc" id="anamespaceal_html"><div class="ttname"><a href="namespaceal.html">al</a></div><div class="ttdef"><b>Definition:</b> <a href="al___app_8hpp_source.html#l00023">al_App.hpp:23</a></div></div>
<div class="ttc" id="astructal_1_1_easy_v_a_o_1_1_mesh_attrib_html"><div class="ttname"><a href="structal_1_1_easy_v_a_o_1_1_mesh_attrib.html">al::EasyVAO::MeshAttrib</a></div><div class="ttdef"><b>Definition:</b> <a href="al___easy_v_a_o_8hpp_source.html#l00043">al_EasyVAO.hpp:43</a></div></div>
<div class="ttc" id="astructal_1_1_easy_v_a_o_html"><div class="ttname"><a href="structal_1_1_easy_v_a_o.html">al::EasyVAO</a></div><div class="ttdoc">EasyVAO class.</div><div class="ttdef"><b>Definition:</b> <a href="al___easy_v_a_o_8hpp_source.html#l00023">al_EasyVAO.hpp:23</a></div></div>
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