[dxvk] Refactored blend state

src/dxvk/dxvk_constant_state.h

@@ -74,32 +74,30 @@ namespace dxvk {
   
   
   /**
-   * \brief Blend state
+   * \brief Logic op state
-   * 
+   * Defines a logic op.
-   * Stores the color blend state for each
-   * available framebuffer attachment.
    */
-  class DxvkBlendState : public RcObject {
+  struct DxvkLogicOpState {
+    VkBool32  enableLogicOp;
+    VkLogicOp logicOp;
+  };
   
-  public:
-    
-    DxvkBlendState(
-            VkBool32                             enableLogicOp,
-            VkLogicOp                            logicOp,
-            uint32_t                             attachmentCount,
-      const VkPipelineColorBlendAttachmentState* attachmentState);
-    
-    const VkPipelineColorBlendStateCreateInfo& info() const {
-      return m_info;
-    }
-    
-  private:
-    
-    std::array<VkPipelineColorBlendAttachmentState,
-      DxvkLimits::MaxNumRenderTargets> m_attachments;
-    
-    VkPipelineColorBlendStateCreateInfo m_info;
   
+  /**
+   * \brief Blend mode for a single attachment
+   * 
+   * Stores the blend state for a single color attachment.
+   * Blend modes can be set separately for each attachment.
+   */
+  struct DxvkBlendMode {
+    VkBool32              blendEnable;
+    VkBlendFactor         srcColorBlendFactor;
+    VkBlendFactor         dstColorBlendFactor;
+    VkBlendOp             colorBlendOp;
+    VkBlendFactor         srcAlphaBlendFactor;
+    VkBlendFactor         dstAlphaBlendFactor;
+    VkBlendOp             alphaBlendOp;
+    VkColorComponentFlags colorWriteMask;
   };
   
   

src/dxvk/dxvk_context.cpp

@@ -427,12 +427,18 @@ namespace dxvk {
   }
   
   
-  void DxvkContext::setBlendState(
+  void DxvkContext::setLogicOpState(
-    const Rc<DxvkBlendState>& state) {
+    const DxvkLogicOpState& state) {
-    if (m_state.co.blendState != state) {
+    m_state.lo = state;
-      m_state.co.blendState = state;
     m_flags.set(DxvkContextFlag::GpDirtyPipelineState);
   }
+  
+  
+  void DxvkContext::setBlendMode(
+          uint32_t            attachment,
+    const DxvkBlendMode&      blendMode) {
+    m_state.om.blendModes.at(attachment) = blendMode;
+    m_flags.set(DxvkContextFlag::GpDirtyPipelineState);
   }
   
   

src/dxvk/dxvk_context.h

@@ -305,11 +305,21 @@ namespace dxvk {
       const DxvkDepthStencilState& state);
     
     /**
-     * \brief Sets color blend state
+     * \brief Sets logic op state
      * \param [in] state New state object
      */
-    void setBlendState(
+    void setLogicOpState(
-      const Rc<DxvkBlendState>& state);
+      const DxvkLogicOpState&   state);
+    
+    /**
+     * \brief Sets blend mode for an attachment
+     * 
+     * \param [in] attachment The attachment index
+     * \param [in] blendMode The blend mode
+     */
+    void setBlendMode(
+            uint32_t            attachment,
+      const DxvkBlendMode&      blendMode);
     
   private:
     

src/dxvk/dxvk_context_state.h

@@ -57,6 +57,8 @@ namespace dxvk {
   struct DxvkOutputMergerState {
     uint32_t                  sampleMask = 0xFFFFFFFFu;
     Rc<DxvkFramebuffer>       framebuffer;
+    
+    std::array<DxvkBlendMode, DxvkLimits::MaxNumRenderTargets> blendModes;
   };
   
   
@@ -94,6 +96,7 @@ namespace dxvk {
     DxvkRasterizerState       rs;
     DxvkMultisampleState      ms;
     DxvkDepthStencilState     ds;
+    DxvkLogicOpState          lo;
     
     DxvkVertexInputState      vi;
     DxvkViewportState         vp;