修正重复UBO被重复绑定的问题

src/RenderDevice/Vulkan/VKDescriptorSetLayoutCreater.cpp

@@ -14,6 +14,12 @@ DescriptorSetLayoutCreater::~DescriptorSetLayoutCreater()
 
 void DescriptorSetLayoutCreater::Bind(const uint32_t binding,VkDescriptorType desc_type,VkShaderStageFlagBits stageFlags)
 {
+    if(index_by_binding.KeyExist(binding))
+    {
+        //重复的绑定点，有可能存在的，比如WorldMatrix在vs/fs中同时存在
+        return;
+    }
+
     VkDescriptorSetLayoutBinding layout_binding;
 
     layout_binding.binding              = binding;
@@ -33,11 +39,15 @@ void DescriptorSetLayoutCreater::Bind(const uint32_t *binding,const uint32_t cou
 
     const uint old_count=layout_binding_list.GetCount();
 
-    layout_binding_list.SetCount(old_count+count);
+    layout_binding_list.PreMalloc(old_count+count);
 
     VkDescriptorSetLayoutBinding *p=layout_binding_list.GetData()+old_count;
 
+    uint fin_count=0;
+
     for(uint i=old_count;i<old_count+count;i++)
+    {
+        if(!index_by_binding.KeyExist(*binding))
         {
             p->binding              = *binding;
             p->descriptorType       = desc_type;
@@ -47,9 +57,14 @@ void DescriptorSetLayoutCreater::Bind(const uint32_t *binding,const uint32_t cou
 
             index_by_binding.Add(*binding,i);
 
-        ++binding;
             ++p;
+            ++fin_count;
         }
+
+        ++binding;
+    }
+
+    layout_binding_list.SetCount(old_count+fin_count);
 }
 
 bool DescriptorSetLayoutCreater::CreatePipelineLayout()