GetGraphicsPipeline now takes in a subpass (thanks KW)

- Fixed blending issues in pipeline

SHADE_Engine/src/Graphics/MiddleEnd/Interface/SHGraphicsSystem.cpp

@@ -909,7 +909,7 @@ namespace SHADE
         SHGraphicsPredefinedData::SystemType::BATCHING, 
         SHGraphicsPredefinedData::GetShadowMapViState(), rasterState
       );
-      shadowMapPipeline = tempLibrary.GetGraphicsPipeline({ shadowMapVS, shadowMapFS });
+      shadowMapPipeline = tempLibrary.GetGraphicsPipeline({ shadowMapVS, shadowMapFS, newSubpass });
     }
     newSubpass->SetCompanionSubpass(companionSubpass, shadowMapPipeline); // set companion subpass and pipeline 
     

SHADE_Engine/src/Graphics/MiddleEnd/Pipeline/SHPipelineLibrary.cpp

@@ -44,8 +44,8 @@ namespace SHADE
           .srcColorBlendFactor = vk::BlendFactor::eSrcAlpha,
           .dstColorBlendFactor = vk::BlendFactor::eOneMinusSrcAlpha,
           .colorBlendOp = vk::BlendOp::eAdd,
-          .srcAlphaBlendFactor = vk::BlendFactor::eOne,
+          .srcAlphaBlendFactor = vk::BlendFactor::eSrcAlpha,
-          .dstAlphaBlendFactor = vk::BlendFactor::eZero,
+          .dstAlphaBlendFactor = vk::BlendFactor::eOneMinusSrcAlpha,
           .alphaBlendOp = vk::BlendOp::eAdd,
           .colorWriteMask = vk::ColorComponentFlagBits::eR | vk::ColorComponentFlagBits::eG | vk::ColorComponentFlagBits::eB | vk::ColorComponentFlagBits::eA,
         }
@@ -60,7 +60,7 @@ namespace SHADE
     newPipeline->ConstructPipeline();
 
     // Emplace the new pipeline
-    graphicsPipelines.emplace (vsFsPair, newPipeline);
+    graphicsPipelines.emplace (std::make_tuple(vsFsPair.first, vsFsPair.second, subpass), newPipeline);
 
     return newPipeline;
   }
@@ -70,19 +70,19 @@ namespace SHADE
     logicalDevice = device;
   }
 
-  Handle<SHVkPipeline> SHPipelineLibrary::GetGraphicsPipeline(std::pair<Handle<SHVkShaderModule>, Handle<SHVkShaderModule>> const& vsFsPair) noexcept
+  Handle<SHVkPipeline> SHPipelineLibrary::GetGraphicsPipeline(PipelineCombo const& pipelineCombo) noexcept
   {
     // return the pipeline requested for
-    if (graphicsPipelines.contains(vsFsPair))
+    if (graphicsPipelines.contains(pipelineCombo))
-      return graphicsPipelines.at(vsFsPair);
+      return graphicsPipelines.at(pipelineCombo);
     else
       return {};
   }
 
-  bool SHPipelineLibrary::CheckGraphicsPipelineExistence(std::pair<Handle<SHVkShaderModule>, Handle<SHVkShaderModule>> const& vsFsPair) noexcept
+  bool SHPipelineLibrary::CheckGraphicsPipelineExistence(PipelineCombo const& pipelineCombo) noexcept
   {
     // Returns if a pipeline exists or not
-    return graphicsPipelines.contains(vsFsPair);
+    return graphicsPipelines.contains(pipelineCombo);
   }
 
 }

SHADE_Engine/src/Graphics/MiddleEnd/Pipeline/SHPipelineLibrary.h

@@ -20,11 +20,13 @@ namespace SHADE
   private:
     // TOOD: Move this somewhere eventually. Can use for other things
 
+    using PipelineCombo = std::tuple<Handle<SHVkShaderModule>, Handle<SHVkShaderModule>, Handle<SHSubpass>>;
+
     //! Logical Device required for creation of pipelines
     Handle<SHVkLogicalDevice> logicalDevice;
 
     //! a map of pipelines that are hashed using a pair of shader module handles
-    std::unordered_map<std::pair<Handle<SHVkShaderModule>, Handle<SHVkShaderModule>>, Handle<SHVkPipeline>> graphicsPipelines;
+    std::unordered_map<PipelineCombo, Handle<SHVkPipeline>> graphicsPipelines;
     
   public:
     void Init (Handle<SHVkLogicalDevice> device) noexcept;
@@ -38,8 +40,8 @@ namespace SHADE
                                                      SHVertexInputState const&                                            viState = SHGraphicsPredefinedData::GetDefaultViState(),
                                                      SHRasterizationState const&                                          rasterState = SHRasterizationState{}
                                                     ) noexcept;
-    Handle<SHVkPipeline> GetGraphicsPipeline             (std::pair<Handle<SHVkShaderModule>, Handle<SHVkShaderModule>> const& vsFsPair) noexcept;
+    Handle<SHVkPipeline> GetGraphicsPipeline             (PipelineCombo const& pipelineCombo) noexcept;
-    bool                 CheckGraphicsPipelineExistence (std::pair<Handle<SHVkShaderModule>, Handle<SHVkShaderModule>> const& vsFsPair) noexcept;
+    bool                 CheckGraphicsPipelineExistence (PipelineCombo const& pipelineCombo) noexcept;
 
   };
 }

SHADE_Engine/src/Graphics/RenderGraph/SHRenderGraphNode.cpp

@@ -688,7 +688,7 @@ namespace SHADE
     }
 
 
-    Handle<SHVkPipeline> pipeline = pipelineLibrary.GetGraphicsPipeline(vsFsPair);
+    Handle<SHVkPipeline> pipeline = pipelineLibrary.GetGraphicsPipeline(std::make_tuple(vsFsPair.first, vsFsPair.second, subpass));
     if (!pipeline)
     {
       // default to batching system type

SHADE_Engine/src/Graphics/SHVkUtil.cpp

@@ -37,6 +37,7 @@ namespace SHADE
     case vk::Format::eR32G32Sfloat:
     case vk::Format::eR32G32B32Sfloat:
     case vk::Format::eR32G32B32A32Sfloat:
+    case vk::Format::eB8G8R8A8Unorm:
       return true;
     }
     return false;

SHADE_Engine/src/Resource/SHHandle.h

@@ -284,6 +284,16 @@ namespace std
     {
       std::size_t operator() (std::pair<SHADE::Handle<T1>, SHADE::Handle<T2>> const& pair) const;
     };
+    /// <summary>
+    /// std::hash template specialization for std::pair<Handle<T1>, Handle<T2>>
+    /// </summary>
+    /// <typeparam name="T">Type for the first Handle.</typeparam>
+    /// <typeparam name="T">Type for the second Handle.</typeparam>
+    template<typename T1, typename T2, typename T3>
+    struct hash<std::tuple<SHADE::Handle<T1>, SHADE::Handle<T2>, SHADE::Handle<T3>>>
+    {
+      std::size_t operator() (std::tuple<SHADE::Handle<T1>, SHADE::Handle<T2>, SHADE::Handle<T3>> const& tuple) const;
+    };
 }
 
 #include "SHHandle.hpp"

SHADE_Engine/src/Resource/SHHandle.hpp

@@ -163,4 +163,15 @@ namespace std
     {
         return std::hash<uint64_t>{}(pair.first.GetId().Raw) ^ std::hash<uint64_t>{}(pair.second.GetId().Raw);
     }
+
+    template <typename T1, typename T2, typename T3>
+    std::size_t hash<tuple<SHADE::Handle<T1>, SHADE::Handle<T2>, SHADE::Handle<T3>>>::operator()(
+      std::tuple<SHADE::Handle<T1>, SHADE::Handle<T2>, SHADE::Handle<T3>> const& tuple) const
+    {
+      return std::hash<uint64_t>{}(std::get<0>(tuple).GetId().Raw)
+        ^
+        std::hash<uint64_t>{}(std::get<1>(tuple).GetId().Raw)
+        ^
+        std::hash<uint64_t>{}(std::get<2>(tuple).GetId().Raw);
+    }
 }