[dxvk] Added render target queries for framebuffers

src/dxvk/dxvk_framebuffer.cpp

@@ -53,6 +53,26 @@ namespace dxvk {
   }
   
   
+  int32_t DxvkRenderTargets::getAttachmentId(
+    const Rc<DxvkImageView>& view) const {
+    if (view == nullptr)
+      return -1;
+    
+    if (m_depthTarget == view)
+      return 0;
+    
+    uint32_t colorAttachmentBaseId =
+      m_depthTarget == nullptr ? 0 : 1;
+    
+    for (uint32_t i = 0; i < MaxNumRenderTargets; i++) {
+      if (m_colorTargets.at(i) == view)
+        return i + colorAttachmentBaseId;
+    }
+    
+    return -1;
+  }
+  
+  
   DxvkFramebufferSize DxvkRenderTargets::renderTargetSize(
     const Rc<DxvkImageView>& renderTarget) const {
     auto extent = renderTarget->image()->info().extent;

src/dxvk/dxvk_framebuffer.h

@@ -94,6 +94,18 @@ namespace dxvk {
      */
     DxvkFramebufferSize getImageSize() const;
     
+    /**
+     * \brief Retrieves the ID of an attachment
+     * 
+     * This can be used to locate a color attachment
+     * or the depth-stencil attachment. Returns -1
+     * if the given view is not an attachment.
+     * \param [in] view View to find
+     * \returns Attachment ID, or \c -1
+     */
+    int32_t getAttachmentId(
+      const Rc<DxvkImageView>& view) const;
+    
   private:
     
     std::array<Rc<DxvkImageView>, MaxNumRenderTargets> m_colorTargets;
@@ -147,6 +159,14 @@ namespace dxvk {
       return m_framebufferSize;
     }
     
+    /**
+     * \brief Render target info
+     * \returns Render target info
+     */
+    const DxvkRenderTargets& renderTargets() const {
+      return m_renderTargets;
+    }
+    
   private:
     
     Rc<vk::DeviceFn>    m_vkd;