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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="preprocessor">#define STB_IMAGE_IMPLEMENTATION</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="preprocessor">#include <stdafx.h></span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="preprocessor">#include "Texture.h"</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="preprocessor">#include "Buffer/Buffer.h"</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="preprocessor">#include "Context.h"</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="preprocessor">#include "Device.h"</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="preprocessor">#include "Memory.h"</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</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::UniqueImageView CreateImageView(</div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span> <a class="code hl_class" href="classfpr_1_1_device.html">fpr::Device</a>* device,</div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> vk::Image image,</div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span> vk::Format format,</div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> vk::ImageAspectFlags aspect_mask,</div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> vk::ImageViewType view_type,</div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> uint32_t mip_levels)</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> vk::ImageViewCreateInfo image_view_create_info{};</div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> image_view_create_info.setImage(image);</div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> image_view_create_info.setViewType(view_type);</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> image_view_create_info.format = format;</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> </div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> image_view_create_info.components.setR(vk::ComponentSwizzle::eIdentity);</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> image_view_create_info.components.setG(vk::ComponentSwizzle::eIdentity);</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> image_view_create_info.components.setB(vk::ComponentSwizzle::eIdentity);</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> image_view_create_info.components.setA(vk::ComponentSwizzle::eIdentity);</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> image_view_create_info.subresourceRange.aspectMask = aspect_mask;</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> image_view_create_info.subresourceRange.baseMipLevel = 0;</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> image_view_create_info.subresourceRange.levelCount = mip_levels;</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> image_view_create_info.subresourceRange.baseArrayLayer = 0;</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> image_view_create_info.subresourceRange.layerCount = 1;</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">auto</span> [result_signal, image_view] = device->GetLogicalDeviceHandle().createImageViewUnique(image_view_create_info);</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> assert((<span class="stringliteral">"Failed to create image view!"</span>, result_signal == vk::Result::eSuccess));</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> <span class="keywordflow">return</span> std::move(image_view);</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> </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>std::pair<vk::DeviceSize, stbi_uc*> Texture::GetImageDetails(std::string_view file_name, <span class="keywordtype">int</span> desired_channels)</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="comment">//Load raw image data and image size.</span></div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <span class="keywordtype">int</span> width;</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <span class="keywordtype">int</span> height;</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <span class="keywordtype">int</span> image_size;</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> stbi_uc* raw_data = stbi_load(file_name.data(), &width, &height, &image_size, desired_channels);</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> assert(raw_data != <span class="keyword">nullptr</span>);</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> m_width = (uint32_t)width;</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> m_height = (uint32_t)height;</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> m_channels_used = desired_channels;</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> m_mip_levels = <span class="keyword">static_cast<</span>uint32_t<span class="keyword">></span>(std::floor(std::log2(std::max(m_width, m_height)))) + 1;</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <span class="keywordflow">return</span> { vk::DeviceSize((vk::DeviceSize)width * (vk::DeviceSize)height * (vk::DeviceSize)desired_channels),</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> raw_data };</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> </div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span><span class="keyword">const</span> vk::DescriptorSet& Texture::GetDescriptorSet()<span class="keyword"> const</span></div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <span class="keywordflow">return</span> *m_descriptor_set;</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span>}</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><span class="keywordtype">void</span> Texture::GenerateMipMaps()</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> <span class="comment">//Run time mip map generation.</span></div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="keyword">auto</span>& context = fpr::Context::Get();</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="keyword">auto</span>& cmd_buffer = context.BeginSingleTimeCommands();</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="keyword">auto</span> half_else_one = [=](uint32_t to_half) { <span class="keywordflow">return</span> to_half > 1 ? to_half / 2 : 1; };</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> vk::ImageMemoryBarrier mip_img_barrier;</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> mip_img_barrier.image = *m_image;</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> mip_img_barrier.subresourceRange.aspectMask = vk::ImageAspectFlagBits::eColor;</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> mip_img_barrier.subresourceRange.layerCount = 1;</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> mip_img_barrier.subresourceRange.levelCount = 1;</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> mip_img_barrier.subresourceRange.baseArrayLayer = 0;</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> mip_img_barrier.srcQueueFamilyIndex = 0;</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> mip_img_barrier.dstQueueFamilyIndex = 0;</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> uint32_t mip_width = m_width;</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> uint32_t mip_height = m_height;</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> <span class="comment">//For each mip level, blit image and reduce resolution in half.</span></div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <span class="keywordflow">for</span>(uint32_t i = 1; i < m_mip_levels; ++i)</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> mip_img_barrier.subresourceRange.baseMipLevel = i - 1;</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> mip_img_barrier.oldLayout = vk::ImageLayout::eTransferDstOptimal;</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> mip_img_barrier.newLayout = vk::ImageLayout::eTransferSrcOptimal;</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> mip_img_barrier.srcAccessMask = vk::AccessFlagBits::eTransferWrite;</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> mip_img_barrier.dstAccessMask = vk::AccessFlagBits::eTransferRead;</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> cmd_buffer.pipelineBarrier(</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> vk::PipelineStageFlagBits::eTransfer,</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> vk::PipelineStageFlagBits::eTransfer,</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> vk::DependencyFlagBits::eByRegion,</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="keyword">nullptr</span>,</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <span class="keyword">nullptr</span>,</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> mip_img_barrier);</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> </div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> vk::ImageBlit blit;</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> blit.srcOffsets[0] = vk::Offset3D(0, 0, 0);</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> blit.srcOffsets[1] = vk::Offset3D(mip_width, mip_height, 1);</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> blit.srcSubresource.aspectMask = vk::ImageAspectFlagBits::eColor;</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> blit.srcSubresource.mipLevel = i - 1;</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> blit.srcSubresource.layerCount = 1;</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> blit.dstOffsets[0] = vk::Offset3D(0, 0, 0);</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> blit.dstOffsets[1] = vk::Offset3D(half_else_one(mip_width), half_else_one(mip_height), 1);</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> blit.dstSubresource.aspectMask = vk::ImageAspectFlagBits::eColor;</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> blit.dstSubresource.mipLevel = i;</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> blit.dstSubresource.layerCount = 1;</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> </div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> cmd_buffer.blitImage(</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> *m_image,</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> vk::ImageLayout::eTransferSrcOptimal,</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> *m_image,</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> vk::ImageLayout::eTransferDstOptimal,</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> blit,</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> vk::Filter::eLinear);</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> </div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> mip_img_barrier.oldLayout = vk::ImageLayout::eTransferSrcOptimal;</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> mip_img_barrier.newLayout = vk::ImageLayout::eShaderReadOnlyOptimal;</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> mip_img_barrier.srcAccessMask = vk::AccessFlagBits::eTransferRead;</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> mip_img_barrier.dstAccessMask = vk::AccessFlagBits::eShaderRead;</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> </div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> cmd_buffer.pipelineBarrier(</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> vk::PipelineStageFlagBits::eTransfer,</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> vk::PipelineStageFlagBits::eFragmentShader,</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> vk::DependencyFlagBits::eByRegion,</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> <span class="keyword">nullptr</span>,</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keyword">nullptr</span>,</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> mip_img_barrier);</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> mip_width = half_else_one(mip_width);</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> mip_height = half_else_one(mip_height);</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> </div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="comment">//pipeline barrier to transition mip image layout.</span></div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> mip_img_barrier.subresourceRange.baseMipLevel = m_mip_levels - 1;</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> mip_img_barrier.oldLayout = vk::ImageLayout::eTransferDstOptimal;</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> mip_img_barrier.newLayout = vk::ImageLayout::eShaderReadOnlyOptimal;</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> mip_img_barrier.srcAccessMask = vk::AccessFlagBits::eTransferWrite;</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> mip_img_barrier.dstAccessMask = vk::AccessFlagBits::eShaderRead;</div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> </div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> cmd_buffer.pipelineBarrier(</div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> vk::PipelineStageFlagBits::eTransfer,</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> vk::PipelineStageFlagBits::eFragmentShader,</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> vk::DependencyFlagBits::eByRegion,</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="keyword">nullptr</span>,</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> <span class="keyword">nullptr</span>,</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> mip_img_barrier);</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> context.EndSingleTimeCommands();</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span>}</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>Texture::Texture(std::string_view file_name, <span class="keywordtype">int</span> desired_channels, vk::Format format): m_format(format)</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span>{</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> <span class="keyword">auto</span>& context = fpr::Context::Get();</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> <span class="keyword">auto</span> device = context.GetDevice();</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> </div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> <span class="comment">//Load raw bytes of image and load it into a staging buffer. Textures are generally unchanged throughout a program</span></div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> <span class="comment">//so they can be transferred to the GPU with a staging buffer and left untouched.</span></div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> <span class="keyword">auto</span> [size, raw_data] = GetImageDetails(file_name, desired_channels);</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> vk::MemoryPropertyFlags flags = vk::MemoryPropertyFlagBits::eHostVisible | vk::MemoryPropertyFlagBits::eHostCoherent;</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> <a class="code hl_class" href="classfpr_1_1_buffer.html">fpr::Buffer</a> staging_buffer(size, vk::BufferUsageFlagBits::eTransferSrc, flags);</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> staging_buffer.Update(raw_data);</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> stbi_image_free(raw_data);</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> </div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> vk::ImageCreateInfo img_create_info;</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> img_create_info.setExtent({ m_width, m_height, 1 });</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> img_create_info.setFormat(format);</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> img_create_info.setUsage(</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> vk::ImageUsageFlagBits::eTransferSrc | vk::ImageUsageFlagBits::eTransferDst | vk::ImageUsageFlagBits::eSampled);</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> img_create_info.setImageType(vk::ImageType::e2D);</div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> img_create_info.setMipLevels(m_mip_levels);</div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> img_create_info.setArrayLayers(1);</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> img_create_info.setTiling(vk::ImageTiling::eOptimal);</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> img_create_info.setSamples(vk::SampleCountFlagBits::e1);</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> img_create_info.setSharingMode(vk::SharingMode::eExclusive);</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> <span class="keyword">auto</span> [img_result, image] = device->GetLogicalDeviceHandle().createImageUnique(img_create_info);</div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> assert(img_result == vk::Result::eSuccess);</div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> m_image = std::move(image);</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> </div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> m_memory = CreateImageMemory(device, *m_image);</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> </div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> TransitionImageLayout(*m_image, PRE_MIP_LAYOUT, m_mip_levels);</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> </div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> <span class="keyword">auto</span>& transfer_cmd_buffer = context.BeginSingleTimeCommands();</div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> </div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> vk::BufferImageCopy image_copy;</div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> image_copy.setBufferOffset(0);</div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> image_copy.setBufferRowLength(0);</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> image_copy.setBufferImageHeight(0);</div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> image_copy.imageSubresource.aspectMask = vk::ImageAspectFlagBits::eColor;</div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> image_copy.imageSubresource.baseArrayLayer = 0;</div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> image_copy.imageSubresource.layerCount = 1;</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> image_copy.imageSubresource.mipLevel = 0;</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> image_copy.setImageExtent({ m_width, m_height, 1 });</div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> image_copy.setImageOffset({ 0, 0, 0 });</div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> </div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> transfer_cmd_buffer.copyBufferToImage(</div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> staging_buffer.GetBuffer(), *m_image, vk::ImageLayout::eTransferDstOptimal, image_copy);</div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> context.EndSingleTimeCommands();</div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> </div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> GenerateMipMaps();</div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> </div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> m_image_view =</div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> CreateImageView(device, *m_image, format, vk::ImageAspectFlagBits::eColor, vk::ImageViewType::e2D, m_mip_levels);</div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> CreateDescriptorSet();</div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span>}</div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> </div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span><span class="keywordtype">void</span> Texture::CreateDescriptorSet()</div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span>{</div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> <span class="keyword">auto</span>& context = fpr::Context::Get();</div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> <span class="keyword">auto</span> device = context.GetDevice();</div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> <span class="comment">//Vulkan allows for image and samppler to be combined. Texture loaded in with Sampler.</span></div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> vk::DescriptorSetLayout sampler_layout = context.m_render_graph->DescriptorSetLayouts.Get(<span class="stringliteral">"Sampler"</span>);</div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> </div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> vk::DescriptorSetAllocateInfo desc_set_alloc_info;</div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> desc_set_alloc_info.descriptorPool = context.GetDescriptorPool();</div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> desc_set_alloc_info.setDescriptorSetCount(1);</div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> desc_set_alloc_info.setSetLayouts(sampler_layout);</div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> <span class="keyword">auto</span> [alloc_result, descriptors] = device->GetLogicalDeviceHandle().allocateDescriptorSetsUnique(desc_set_alloc_info);</div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> </div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> m_descriptor_set = std::move(descriptors[0]);</div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> assert(alloc_result == vk::Result::eSuccess);</div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> </div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> vk::DescriptorImageInfo image_info;</div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> image_info.setImageLayout(vk::ImageLayout::eShaderReadOnlyOptimal);</div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> image_info.setImageView(*m_image_view);</div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> image_info.setSampler(context.m_render_graph->Samplers.Get(<span class="stringliteral">"Sampler"</span>));</div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> </div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> vk::WriteDescriptorSet write_set;</div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> write_set.setImageInfo(image_info);</div>
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> write_set.setDstSet(*m_descriptor_set);</div>
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> write_set.setDescriptorType(vk::DescriptorType::eCombinedImageSampler);</div>
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> device->GetLogicalDeviceHandle().updateDescriptorSets(write_set, <span class="keyword">nullptr</span>);</div>
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span>}</div>
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> </div>
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span><span class="keywordtype">void</span> TransitionImageLayout(vk::Image image, <span class="keyword">const</span> LayoutTransitionRules& transition_rules, uint32_t mip_levels)</div>
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span>{</div>
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> <span class="comment">//Transition the image into the layout specified by the rules passed.</span></div>
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> <span class="keyword">auto</span>& context = fpr::Context::Get();</div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> </div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> <span class="keyword">auto</span>& single_use_cmd_buffer = context.BeginSingleTimeCommands();</div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> </div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> vk::ImageMemoryBarrier img_mem_barrier;</div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> img_mem_barrier.setOldLayout(transition_rules.old_layout);</div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> img_mem_barrier.setNewLayout(transition_rules.new_layout);</div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> img_mem_barrier.setImage(image);</div>
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> </div>
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> img_mem_barrier.subresourceRange.aspectMask = transition_rules.image_aspect;</div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> img_mem_barrier.subresourceRange.baseMipLevel = 0;</div>
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> img_mem_barrier.subresourceRange.baseArrayLayer = 0;</div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> img_mem_barrier.subresourceRange.layerCount = 1;</div>
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> img_mem_barrier.subresourceRange.levelCount = mip_levels;</div>
<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> </div>
<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> img_mem_barrier.srcAccessMask = transition_rules.src_access;</div>
<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> img_mem_barrier.dstAccessMask = transition_rules.dst_access;</div>
<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> </div>
<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> single_use_cmd_buffer.pipelineBarrier(</div>
<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> transition_rules.src_stage,</div>
<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> transition_rules.dst_stage,</div>
<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> vk::DependencyFlagBits::eByRegion,</div>
<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> <span class="keyword">nullptr</span>,</div>
<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> <span class="keyword">nullptr</span>,</div>
<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> img_mem_barrier);</div>
<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> </div>
<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> context.EndSingleTimeCommands();</div>
<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span>}</div>
<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span>} <span class="comment">// namespace fpr</span></div>
<div class="ttc" id="aclassfpr_1_1_buffer_html"><div class="ttname"><a href="classfpr_1_1_buffer.html">fpr::Buffer</a></div><div class="ttdoc">Holds some essential information for data transfer between the CPU and GPU. Data transfer between GPU...</div><div class="ttdef"><b>Definition:</b> <a href="_buffer_8h_source.html#l00013">Buffer.h:14</a></div></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>
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