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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="preprocessor">#include <stdafx.h></span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="preprocessor">#include "Context.h"</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="preprocessor">#include "Light.h"</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span> </div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span> </div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="keyword">namespace </span>fpr</div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span>{</div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="keywordtype">size_t</span> fpr::PointLight::light_count = 0;</div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><a class="code hl_struct" href="structfpr_1_1_point_light_u_b_o.html">fpr::PointLightUBO</a> fpr::PointLight::s_point_light_data;</div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span>fpr::PointLight::PointLight(glm::vec3 position, glm::vec3 color, <span class="keywordtype">float</span> luminance):</div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span> m_color(color), m_position(position), m_luminance(luminance), m_ubo({color, luminance, m_position })</div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span>{</div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> light_index = light_count;</div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span> s_point_light_data.lights[light_index] = m_ubo;</div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> ++light_count;</div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span>}</div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> </div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="keywordtype">void</span> fpr::PointLight::Update()</div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span>{</div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> <span class="comment">//Update the whole buffer at once. Should refactor to allow updating of ranges.</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">auto</span>& context = fpr::Context::Get();</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">auto</span>& render_graph = context.m_render_graph;</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> render_graph->Buffers.Get(<span class="stringliteral">"PointLight"</span> + std::to_string(context.GetSwapChain()->GetCurrentFrameIdx()))</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> ->Update(&s_point_light_data);</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</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="keywordtype">void</span> fpr::PointLight::CreateDescriptorSet()</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span>{</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">auto</span>& context = fpr::Context::Get();</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">auto</span>& device = context.GetDevice()->GetLogicalDeviceHandle();</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">auto</span> render_graph = context.m_render_graph.get();</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">auto</span>& constants = context.GetSwapChain()->GetViewportConstants();</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="comment">//Two storage buffers. One for point lights. One for culled light indices.</span></div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> vk::DescriptorSetLayoutBinding light_buffer_layout_binding;</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> light_buffer_layout_binding.binding = 0;</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> light_buffer_layout_binding.descriptorCount = 1;</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> light_buffer_layout_binding.descriptorType = vk::DescriptorType::eStorageBuffer;</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> light_buffer_layout_binding.stageFlags = vk::ShaderStageFlagBits::eCompute | vk::ShaderStageFlagBits::eFragment;</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> vk::DescriptorSetLayoutBinding visible_light_layout_binding;</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> visible_light_layout_binding.binding = 1;</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> visible_light_layout_binding.descriptorCount = 1;</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> visible_light_layout_binding.descriptorType = vk::DescriptorType::eStorageBuffer;</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> visible_light_layout_binding.stageFlags = vk::ShaderStageFlagBits::eCompute | vk::ShaderStageFlagBits::eFragment;</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> </div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> std::vector<vk::DescriptorSetLayoutBinding> layout_bindings = { light_buffer_layout_binding,</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> visible_light_layout_binding };</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> vk::DescriptorSetLayoutCreateInfo layout_info{};</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> layout_info.setBindings(layout_bindings);</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> </div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <span class="keyword">auto</span> [layout_res, layout] = device.createDescriptorSetLayoutUnique(layout_info);</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> assert(layout_res == vk::Result::eSuccess);</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> context.m_render_graph->DescriptorSetLayouts.Add(<span class="stringliteral">"PointLight"</span>, layout);</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> </div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <span class="keywordflow">for</span>(<span class="keywordtype">size_t</span> i = 0; i < context.GetSwapChain()->GetMaxFrameIdx(); ++i)</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> {</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> vk::DescriptorSetLayout layouts[] = { context.m_render_graph->DescriptorSetLayouts.Get(<span class="stringliteral">"PointLight"</span>) };</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> vk::DescriptorSetAllocateInfo desc_set_info;</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> desc_set_info.descriptorPool = context.GetDescriptorPool();</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> desc_set_info.pSetLayouts = layouts;</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> desc_set_info.descriptorSetCount = 1;</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> </div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> </div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <span class="keyword">auto</span> [desc_set_result, desc_set] = device.allocateDescriptorSetsUnique(desc_set_info);</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> context.m_render_graph->DescriptorSets.Add(<span class="stringliteral">"PointLight"</span> + std::to_string(i), std::move(desc_set[0]));</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> render_graph->Buffers.Add(</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="stringliteral">"PointLight"</span> + std::to_string(i),</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> std::make_unique<fpr::Buffer>(</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <span class="keyword">sizeof</span> PointLightUBO,</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> vk::BufferUsageFlagBits::eStorageBuffer | vk::BufferUsageFlagBits::eTransferSrc |</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> vk::BufferUsageFlagBits::eTransferDst,</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> vk::MemoryPropertyFlagBits::eHostCoherent | vk::MemoryPropertyFlagBits::eHostVisible));</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> </div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> render_graph->Buffers.Add(</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="stringliteral">"VisibleLights"</span> + std::to_string(i),</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> std::make_unique<fpr::Buffer>(</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> <span class="keyword">sizeof</span>(LightCullingData) * constants.horizontal_tile_count * constants.vertical_tile_count,</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> vk::BufferUsageFlagBits::eStorageBuffer | vk::BufferUsageFlagBits::eTransferSrc |</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> vk::BufferUsageFlagBits::eTransferDst,</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> vk::MemoryPropertyFlagBits::eHostCoherent | vk::MemoryPropertyFlagBits::eHostVisible));</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> </div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> </div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> std::vector<vk::DescriptorBufferInfo> buffer_infos(2);</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> buffer_infos[0] = { { .buffer = render_graph->Buffers.Get(<span class="stringliteral">"PointLight"</span> + std::to_string(i))->GetBuffer(),</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> .offset = 0,</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> .range = <span class="keyword">sizeof</span> PointLightUBO } };</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> </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> buffer_infos[1] = { { .buffer = render_graph->Buffers.Get(<span class="stringliteral">"VisibleLights"</span> + std::to_string(i))->GetBuffer(),</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> .offset = 0,</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> .range = <span class="keyword">sizeof</span>(LightCullingData) * constants.horizontal_tile_count * constants.vertical_tile_count} };</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> </div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="comment">//Update descriptor sets to reflect the usage of the buffers.</span></div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> std::vector<vk::WriteDescriptorSet> write_sets(2);</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> write_sets[0].descriptorCount = 1;</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> write_sets[0].descriptorType = vk::DescriptorType::eStorageBuffer;</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> write_sets[0].dstBinding = 0;</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> write_sets[0].dstSet = render_graph->DescriptorSets.Get(<span class="stringliteral">"PointLight"</span> + std::to_string(i));</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> write_sets[0].setBufferInfo(buffer_infos[0]);</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> write_sets[1].descriptorCount = 1;</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> write_sets[1].descriptorType = vk::DescriptorType::eStorageBuffer;</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> write_sets[1].dstBinding = 1;</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> write_sets[1].dstSet = render_graph->DescriptorSets.Get(<span class="stringliteral">"PointLight"</span> + std::to_string(i));</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> write_sets[1].setBufferInfo(buffer_infos[1]);</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> device.updateDescriptorSets(write_sets, <span class="keyword">nullptr</span>);</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="comment">// namespace fpr</span></div>
<div class="ttc" id="astructfpr_1_1_point_light_u_b_o_html"><div class="ttname"><a href="structfpr_1_1_point_light_u_b_o.html">fpr::PointLightUBO</a></div><div class="ttdef"><b>Definition:</b> <a href="_shader_objects_8h_source.html#l00033">ShaderObjects.h:34</a></div></div>
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