[dxvk] Added shader interface

src/dxvk/dxvk_shader.cpp

@@ -2,10 +2,20 @@
 
 namespace dxvk {
   
+  DxvkShaderInterface:: DxvkShaderInterface() { }
+  DxvkShaderInterface::~DxvkShaderInterface() { }
+  
+  void DxvkShaderInterface::enableResourceSlot(
+    const DxvkResourceSlot& slot) {
+    m_slots.push_back(slot);
+  }
+  
+  
   DxvkShader::DxvkShader(
     const Rc<vk::DeviceFn>&     vkd,
+    const DxvkShaderInterface&  iface,
     const SpirvCodeBuffer&      code)
-  : m_vkd(vkd) {
+  : m_vkd(vkd), m_iface(iface) {
     TRACE(this);
     
     VkShaderModuleCreateInfo info;

src/dxvk/dxvk_shader.h

@@ -1,11 +1,62 @@
 #pragma once
 
+#include <vector>
+
 #include "dxvk_include.h"
 
 #include "./spirv/dxvk_spirv_code_buffer.h"
 
 namespace dxvk {
   
+  /**
+   * \brief Shader resource type
+   * 
+   * Enumerates the types of resources
+   * that can be accessed by shaders.
+   */
+  enum class DxvkResourceType : uint32_t {
+    UniformBuffer = 0x00,
+    ImageSampler  = 0x01,
+    SampledImage  = 0x02,
+    StorageBuffer = 0x03,
+  };
+  
+  
+  /**
+   * \brief Resource slot
+   */
+  struct DxvkResourceSlot{
+    DxvkResourceType type;
+    uint32_t         slot;
+  };
+  
+  
+  /**
+   * \brief Shader interface
+   * 
+   * Stores a list of resource bindings in the
+   * order they are defined in the shader module.
+   */
+  class DxvkShaderInterface {
+    
+  public:
+    
+    DxvkShaderInterface();
+    ~DxvkShaderInterface();
+    
+    auto size() const { return m_slots.size(); }
+    auto data() const { return m_slots.data(); }
+    
+    void enableResourceSlot(
+      const DxvkResourceSlot& slot);
+    
+  private:
+    
+    std::vector<DxvkResourceSlot> m_slots;
+    
+  };
+  
+  
   /**
    * \brief Shader module
    * 
@@ -20,6 +71,7 @@ namespace dxvk {
     
     DxvkShader(
       const Rc<vk::DeviceFn>&     vkd,
+      const DxvkShaderInterface&  iface,
       const SpirvCodeBuffer&      code);
     ~DxvkShader();
     
@@ -34,6 +86,7 @@ namespace dxvk {
   private:
     
     Rc<vk::DeviceFn>      m_vkd;
+    DxvkShaderInterface   m_iface;
     VkShaderModule        m_shader;
     
   };