[dxvk] Store and create pipeline layout objects in pipeline manager

This should help avoid a lot of duplication.

src/dxvk/dxvk_compute.cpp

@@ -12,9 +12,10 @@ namespace dxvk {
   
   DxvkComputePipeline::DxvkComputePipeline(
           DxvkPipelineManager*        pipeMgr,
-          DxvkComputePipelineShaders  shaders)
+          DxvkComputePipelineShaders  shaders,
+          DxvkBindingLayoutObjects*   layout)
   : m_vkd(pipeMgr->m_device->vkd()), m_pipeMgr(pipeMgr),
-    m_shaders(std::move(shaders)) {
+    m_shaders(std::move(shaders)), m_bindings(layout) {
     m_shaders.cs->defineResourceSlots(m_slotMapping);
 
     m_slotMapping.makeDescriptorsDynamic(

src/dxvk/dxvk_compute.h

@@ -91,7 +91,8 @@ namespace dxvk {
     
     DxvkComputePipeline(
             DxvkPipelineManager*        pipeMgr,
-            DxvkComputePipelineShaders  shaders);
+            DxvkComputePipelineShaders  shaders,
+            DxvkBindingLayoutObjects*   layout);
 
     ~DxvkComputePipeline();
     
@@ -115,6 +116,18 @@ namespace dxvk {
       return m_layout.ptr();
     }
 
+    /**
+     * \brief Pipeline layout
+     * 
+     * Stores the pipeline layout and the descriptor set
+     * layouts, as well as information on the resource
+     * slots used by the pipeline.
+     * \returns Pipeline layout
+     */
+    DxvkBindingLayoutObjects* getBindings() const {
+      return m_bindings;
+    }
+    
     /**
      * \brief Retrieves pipeline handle
      * 
@@ -142,6 +155,7 @@ namespace dxvk {
     DxvkComputePipelineShaders  m_shaders;
     DxvkDescriptorSlotMapping   m_slotMapping;
     
+    DxvkBindingLayoutObjects*   m_bindings;
     Rc<DxvkPipelineLayout>      m_layout;
     
     alignas(CACHE_LINE_SIZE)

src/dxvk/dxvk_graphics.cpp

@@ -10,9 +10,10 @@ namespace dxvk {
 
   DxvkGraphicsPipeline::DxvkGraphicsPipeline(
           DxvkPipelineManager*        pipeMgr,
-          DxvkGraphicsPipelineShaders shaders)
+          DxvkGraphicsPipelineShaders shaders,
+          DxvkBindingLayoutObjects*   layout)
   : m_vkd(pipeMgr->m_device->vkd()), m_pipeMgr(pipeMgr),
-    m_shaders(std::move(shaders)) {
+    m_shaders(std::move(shaders)), m_bindings(layout) {
     if (m_shaders.vs  != nullptr) m_shaders.vs ->defineResourceSlots(m_slotMapping);
     if (m_shaders.tcs != nullptr) m_shaders.tcs->defineResourceSlots(m_slotMapping);
     if (m_shaders.tes != nullptr) m_shaders.tes->defineResourceSlots(m_slotMapping);

src/dxvk/dxvk_graphics.h

@@ -149,7 +149,8 @@ namespace dxvk {
     
     DxvkGraphicsPipeline(
             DxvkPipelineManager*        pipeMgr,
-            DxvkGraphicsPipelineShaders shaders);
+            DxvkGraphicsPipelineShaders shaders,
+            DxvkBindingLayoutObjects*   layout);
 
     ~DxvkGraphicsPipeline();
 
@@ -181,6 +182,18 @@ namespace dxvk {
       return m_layout.ptr();
     }
     
+    /**
+     * \brief Pipeline layout
+     * 
+     * Stores the pipeline layout and the descriptor set
+     * layout, as well as information on the resource
+     * slots used by the pipeline.
+     * \returns Pipeline layout
+     */
+    DxvkBindingLayoutObjects* getBindings() const {
+      return m_bindings;
+    }
+
     /**
      * \brief Queries shader for a given stage
      * 
@@ -225,6 +238,7 @@ namespace dxvk {
     DxvkGraphicsPipelineShaders m_shaders;
     DxvkDescriptorSlotMapping   m_slotMapping;
 
+    DxvkBindingLayoutObjects*   m_bindings;
     Rc<DxvkPipelineLayout>      m_layout;
     
     uint32_t m_vsIn  = 0;

src/dxvk/dxvk_pipemanager.cpp

@@ -32,10 +32,12 @@ namespace dxvk {
     if (pair != m_computePipelines.end())
       return &pair->second;
 
+    auto layout = createPipelineLayout(shaders.cs->getBindings());
+
     auto iter = m_computePipelines.emplace(
       std::piecewise_construct,
       std::tuple(shaders),
-      std::tuple(this, shaders));
+      std::tuple(this, shaders, layout));
     return &iter.first->second;
   }
   
@@ -51,10 +53,27 @@ namespace dxvk {
     if (pair != m_graphicsPipelines.end())
       return &pair->second;
 
+    DxvkBindingLayout mergedLayout;
+    mergedLayout.merge(shaders.vs->getBindings());
+
+    if (shaders.tcs != nullptr)
+      mergedLayout.merge(shaders.tcs->getBindings());
+
+    if (shaders.tes != nullptr)
+      mergedLayout.merge(shaders.tes->getBindings());
+
+    if (shaders.gs != nullptr)
+      mergedLayout.merge(shaders.gs->getBindings());
+
+    if (shaders.fs != nullptr)
+      mergedLayout.merge(shaders.fs->getBindings());
+
+    auto layout = createPipelineLayout(mergedLayout);
+
     auto iter = m_graphicsPipelines.emplace(
       std::piecewise_construct,
       std::tuple(shaders),
-      std::tuple(this, shaders));
+      std::tuple(this, shaders, layout));
     return &iter.first->second;
   }
 
@@ -85,4 +104,37 @@ namespace dxvk {
       m_stateCache->stopWorkerThreads();
   }
 
+
+  DxvkBindingSetLayout* DxvkPipelineManager::createDescriptorSetLayout(
+    const DxvkBindingSetLayoutKey& key) {
+    auto pair = m_descriptorSetLayouts.find(key);
+    if (pair != m_descriptorSetLayouts.end())
+      return &pair->second;
+
+    auto iter = m_descriptorSetLayouts.emplace(
+      std::piecewise_construct,
+      std::tuple(key),
+      std::tuple(m_device, key));
+    return &iter.first->second;
+  }
+
+
+  DxvkBindingLayoutObjects* DxvkPipelineManager::createPipelineLayout(
+    const DxvkBindingLayout& layout) {
+    auto pair = m_pipelineLayouts.find(layout);
+    if (pair != m_pipelineLayouts.end())
+      return &pair->second;
+
+    std::array<const DxvkBindingSetLayout*, DxvkDescriptorSets::SetCount> setLayouts = { };
+
+    for (uint32_t i = 0; i < setLayouts.size(); i++)
+      setLayouts[i] = createDescriptorSetLayout(layout.getBindingList(i));
+
+    auto iter = m_pipelineLayouts.emplace(
+      std::piecewise_construct,
+      std::tuple(layout),
+      std::tuple(m_device, layout, setLayouts.data()));
+    return &iter.first->second;
+  }
+  
 }

src/dxvk/dxvk_pipemanager.h

@@ -106,6 +106,16 @@ namespace dxvk {
     
     dxvk::mutex m_mutex;
     
+    std::unordered_map<
+      DxvkBindingSetLayoutKey,
+      DxvkBindingSetLayout,
+      DxvkHash, DxvkEq> m_descriptorSetLayouts;
+
+    std::unordered_map<
+      DxvkBindingLayout,
+      DxvkBindingLayoutObjects,
+      DxvkHash, DxvkEq> m_pipelineLayouts;
+
     std::unordered_map<
       DxvkComputePipelineShaders,
       DxvkComputePipeline,
@@ -116,6 +126,12 @@ namespace dxvk {
       DxvkGraphicsPipeline,
       DxvkHash, DxvkEq> m_graphicsPipelines;
 
+    DxvkBindingSetLayout* createDescriptorSetLayout(
+      const DxvkBindingSetLayoutKey& key);
+
+    DxvkBindingLayoutObjects* createPipelineLayout(
+      const DxvkBindingLayout& layout);
+
   };
   
 }