[dxvk] Don't use reference counting for pipeline objects

Again not necessary since these objects are persistent.
Eliminates refcount overhead of pipeline lookups entirely.

src/dxvk/dxvk_compute.h

@@ -42,7 +42,7 @@ namespace dxvk {
    * pipelines do not need to be recompiled against any sort
    * of pipeline state.
    */
-  class DxvkComputePipeline : public RcObject {
+  class DxvkComputePipeline {
     
   public:
     

src/dxvk/dxvk_context_state.h

@@ -117,14 +117,14 @@ namespace dxvk {
     DxvkGraphicsPipelineShaders   shaders;
     DxvkGraphicsPipelineStateInfo state;
     DxvkGraphicsPipelineFlags     flags;
-    Rc<DxvkGraphicsPipeline>      pipeline;
+    DxvkGraphicsPipeline*         pipeline = nullptr;
   };
   
   
   struct DxvkComputePipelineState {
     DxvkComputePipelineShaders    shaders;
     DxvkComputePipelineStateInfo  state;
-    Rc<DxvkComputePipeline>       pipeline;
+    DxvkComputePipeline*          pipeline = nullptr;
   };
 
 

src/dxvk/dxvk_graphics.h

@@ -198,7 +198,7 @@ namespace dxvk {
    * recompile the graphics pipeline against a given
    * pipeline state vector.
    */
-  class DxvkGraphicsPipeline : public RcObject {
+  class DxvkGraphicsPipeline {
     
   public:
     

src/dxvk/dxvk_pipemanager.cpp

@@ -56,7 +56,7 @@ namespace dxvk {
   }
   
   
-  Rc<DxvkComputePipeline> DxvkPipelineManager::createComputePipeline(
+  DxvkComputePipeline* DxvkPipelineManager::createComputePipeline(
     const DxvkComputePipelineShaders& shaders) {
     if (shaders.cs == nullptr)
       return nullptr;
@@ -65,16 +65,17 @@ namespace dxvk {
     
     auto pair = m_computePipelines.find(shaders);
     if (pair != m_computePipelines.end())
-      return pair->second;
+      return &pair->second;
     
-    Rc<DxvkComputePipeline> pipeline = new DxvkComputePipeline(this, shaders);
-    
-    m_computePipelines.insert(std::make_pair(shaders, pipeline));
-    return pipeline;
+    auto iter = m_computePipelines.emplace(
+      std::piecewise_construct,
+      std::tuple(shaders),
+      std::tuple(this, shaders));
+    return &iter.first->second;
   }
   
   
-  Rc<DxvkGraphicsPipeline> DxvkPipelineManager::createGraphicsPipeline(
+  DxvkGraphicsPipeline* DxvkPipelineManager::createGraphicsPipeline(
     const DxvkGraphicsPipelineShaders& shaders) {
     if (shaders.vs == nullptr)
       return nullptr;
@@ -83,12 +84,13 @@ namespace dxvk {
     
     auto pair = m_graphicsPipelines.find(shaders);
     if (pair != m_graphicsPipelines.end())
-      return pair->second;
+      return &pair->second;
     
-    Rc<DxvkGraphicsPipeline> pipeline = new DxvkGraphicsPipeline(this, shaders);
-    
-    m_graphicsPipelines.insert(std::make_pair(shaders, pipeline));
-    return pipeline;
+    auto iter = m_graphicsPipelines.emplace(
+      std::piecewise_construct,
+      std::tuple(shaders),
+      std::tuple(this, shaders));
+    return &iter.first->second;
   }
 
   

src/dxvk/dxvk_pipemanager.h

@@ -63,7 +63,7 @@ namespace dxvk {
      * \param [in] shaders Shaders for the pipeline
      * \returns Compute pipeline object
      */
-    Rc<DxvkComputePipeline> createComputePipeline(
+    DxvkComputePipeline* createComputePipeline(
       const DxvkComputePipelineShaders& shaders);
     
     /**
@@ -75,7 +75,7 @@ namespace dxvk {
      * \param [in] shaders Shaders for the pipeline
      * \returns Graphics pipeline object
      */
-    Rc<DxvkGraphicsPipeline> createGraphicsPipeline(
+    DxvkGraphicsPipeline* createGraphicsPipeline(
       const DxvkGraphicsPipelineShaders& shaders);
     
     /*
@@ -114,13 +114,13 @@ namespace dxvk {
     
     std::unordered_map<
       DxvkComputePipelineShaders,
-      Rc<DxvkComputePipeline>,
+      DxvkComputePipeline,
       DxvkPipelineKeyHash,
       DxvkPipelineKeyEq> m_computePipelines;
     
     std::unordered_map<
       DxvkGraphicsPipelineShaders,
-      Rc<DxvkGraphicsPipeline>,
+      DxvkGraphicsPipeline,
       DxvkPipelineKeyHash,
       DxvkPipelineKeyEq> m_graphicsPipelines;