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<div class="headertitle"><div class="title">DepthBuffer.cpp</div></div>
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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">#define VULKAN_HPP_NO_EXCEPTIONS</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="preprocessor">#include "Buffer/DepthBuffer.h"</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="preprocessor">#include "Context.h"</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="preprocessor">#include "Device.h"</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="preprocessor">#include "SwapChain.h"</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="preprocessor">#include "Texture.h"</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="preprocessor">#include "Memory.h"</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="keyword">namespace </span>fpr</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>vk::ImageTiling fpr::DepthBuffer::PREFERRED_IMAGE_TILING;</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>vk::Format fpr::DepthBuffer::QueryBestFormat(<a class="code hl_class" href="classfpr_1_1_device.html">fpr::Device</a>* device)</div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span>{</div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> <span class="comment">//Iterate over wanted formats, ensure that they meet the required properties.</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> <span class="keywordflow">for</span>(<span class="keyword">const</span> <span class="keyword">auto</span>& format : DEPTH_BUFFER_IMAGE_FORMATS)</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> vk::FormatProperties format_properties = device->GetPhysicalDeviceHandle().getFormatProperties(format);</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="keywordtype">bool</span> optimal_flags_found = (format_properties.optimalTilingFeatures & REQUIRED_FEATURE_FLAGS) ==</div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> REQUIRED_FEATURE_FLAGS;</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> <span class="keywordflow">if</span>(PREFERRED_IMAGE_TILING == vk::ImageTiling::eOptimal && optimal_flags_found)</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> <span class="keywordflow">return</span> format;</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="keywordtype">bool</span> linear_flags_found = (format_properties.linearTilingFeatures & REQUIRED_FEATURE_FLAGS) ==</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> REQUIRED_FEATURE_FLAGS;</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> <span class="keywordflow">if</span>(PREFERRED_IMAGE_TILING == vk::ImageTiling::eLinear && linear_flags_found)</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> <span class="keywordflow">return</span> format;</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> </div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> <span class="keywordflow">return</span> vk::Format::eUndefined;</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span>}</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> </div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="keyword">const</span> vk::Image& DepthBuffer::GetDepthImage() const FPR_NOEXCEPT</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span>{</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> <span class="keywordflow">return</span> m_depth_image.get();</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span>}</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> </div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span><span class="keyword">const</span> vk::DeviceMemory& DepthBuffer::GetDepthBufferMemory() const FPR_NOEXCEPT</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span>{</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="keywordflow">return</span> m_depth_buffer_memory.get();</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span>}</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> </div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span><span class="keyword">const</span> vk::ImageView& DepthBuffer::GetDepthBufferView() const FPR_NOEXCEPT</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> <span class="keywordflow">return</span> m_depth_image_view.get();</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span>}</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><span class="keyword">const</span> vk::Format& DepthBuffer::GetDepthImageFormat() const FPR_NOEXCEPT</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span>{</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keywordflow">return</span> m_depth_image_format;</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> </div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span>DepthBuffer::DepthBuffer(<a class="code hl_class" href="classfpr_1_1_device.html">fpr::Device</a>* device, <a class="code hl_class" href="classfpr_1_1_swap_chain.html">fpr::SwapChain</a>* swapchain, vk::ImageTiling tiling)</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span>{</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> PREFERRED_IMAGE_TILING = tiling;</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> m_depth_image_format = QueryBestFormat(device);</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> assert((<span class="stringliteral">"No supported depth buffer image format"</span>, m_depth_image_format != vk::Format::eUndefined));</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keyword">const</span> vk::Extent3D extent(swapchain->GetCurrentExtent(), 1);</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> </div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> vk::ImageCreateInfo depth_image_create_info{};</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> depth_image_create_info.extent = extent;</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> depth_image_create_info.format = m_depth_image_format;</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> depth_image_create_info.usage = vk::ImageUsageFlagBits::eDepthStencilAttachment | vk::ImageUsageFlagBits::eSampled; <span class="comment">//Sampled in compute buffer</span></div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> depth_image_create_info.imageType = vk::ImageType::e2D;</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> depth_image_create_info.mipLevels = 1;</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> depth_image_create_info.arrayLayers = 1;</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> depth_image_create_info.initialLayout = vk::ImageLayout::eUndefined;</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> </div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <span class="keyword">auto</span> [create_result, image] = device->GetLogicalDeviceHandle().createImageUnique(depth_image_create_info);</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> m_depth_image = std::move(image);</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> m_depth_buffer_memory = CreateImageMemory(device, *m_depth_image);</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> m_depth_image_view = CreateImageView(</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> device, *m_depth_image, m_depth_image_format, vk::ImageAspectFlagBits::eDepth, vk::ImageViewType::e2D);</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> </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> </div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span>vk::Format DepthBuffer::QueryBestImageFormat(</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <span class="keyword">const</span> std::vector<vk::Format> possible_formats,</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> vk::ImageTiling tiling,</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> vk::FormatFeatureFlags required_flags)</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span>{</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <span class="keywordflow">for</span>(<span class="keyword">const</span> <span class="keyword">auto</span>& format : possible_formats)</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> {</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> vk::FormatProperties format_proprties =</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> fpr::Context::Get().GetDevice()->GetPhysicalDeviceHandle().getFormatProperties(format);</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="keywordtype">bool</span> optimal_flags_found = (format_proprties.optimalTilingFeatures & required_flags) == required_flags;</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="keywordflow">if</span>(tiling == vk::ImageTiling::eOptimal && optimal_flags_found)</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="keywordflow">return</span> format;</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> <span class="keywordtype">bool</span> linear_flags_found = (format_proprties.linearTilingFeatures & required_flags) == required_flags;</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keywordflow">if</span>(tiling == vk::ImageTiling::eLinear && linear_flags_found)</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <span class="keywordflow">return</span> format;</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> <span class="keywordflow">return</span> vk::Format::eUndefined;</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span>}</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span>} <span class="comment">// namespace fpr</span></div>
<div class="ttc" id="aclassfpr_1_1_device_html"><div class="ttname"><a href="classfpr_1_1_device.html">fpr::Device</a></div><div class="ttdef"><b>Definition:</b> <a href="_device_8h_source.html#l00007">Device.h:8</a></div></div>
<div class="ttc" id="aclassfpr_1_1_swap_chain_html"><div class="ttname"><a href="classfpr_1_1_swap_chain.html">fpr::SwapChain</a></div><div class="ttdef"><b>Definition:</b> <a href="_swap_chain_8h_source.html#l00012">SwapChain.h:13</a></div></div>
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