Device增加AcquireNextImage

example/Vulkan/VKDevice.cpp

@@ -57,8 +57,15 @@ namespace
     }
 }//namespace
 
+Device::Device(DeviceAttribute *da)
+{
+    attr=da;
+    current_framebuffer=0;
+    image_acquired_semaphore=this->CreateSem();
+}
 Device::~Device()
 {
+    delete image_acquired_semaphore;
     delete attr;
 }
 
@@ -213,4 +220,9 @@ Semaphore *Device::CreateSem()
 
     return(new Semaphore(attr->device,sem));
 }
+
+bool Device::AcquireNextImage()
+{
+    return(vkAcquireNextImageKHR(attr->device,attr->swap_chain,UINT64_MAX,*image_acquired_semaphore,VK_NULL_HANDLE,&current_framebuffer)==VK_SUCCESS);
+}
 VK_NAMESPACE_END

example/Vulkan/VKDevice.h

@@ -19,14 +19,14 @@ class Device
 {
     DeviceAttribute *attr;
 
+    Semaphore *image_acquired_semaphore;
+    uint32_t current_framebuffer;
+
 private:
 
     friend Device *CreateRenderDevice(VkInstance,const PhysicalDevice *,Window *);
 
-    Device(DeviceAttribute *da)
-    {
-        attr=da;
-    }
+    Device(DeviceAttribute *da);
 
 public:
 
@@ -66,6 +66,8 @@ public:
     Fence *CreateFence();
 
     Semaphore *CreateSem();
+
+    bool AcquireNextImage();
 };//class Device
 VK_NAMESPACE_END
 #endif//HGL_GRAPH_RENDER_SURFACE_INCLUDE

example/Vulkan/VKSemaphore.h

@@ -21,6 +21,8 @@ private:
 public:
 
     ~Semaphore();
+
+    operator VkSemaphore(){return sem;}
 };//class Semaphore
 VK_NAMESPACE_END
 #endif//HGL_GRAPH_VULKAN_SEMAPHORE_INCLUDE