optimized VKArrayBuffer

inc/hgl/graph/VKArrayBuffer.h

@@ -23,11 +23,10 @@ namespace hgl
             VkBufferUsageFlags buffer_usage_flags;
 
             uint item_length;                        ///<单个数据长度
+            uint unit_size;
 
             VKMemoryAllocator *vk_ma;
 
-            uint32_t offset_alignment;
-
             Collection *coll;
 
         protected:
@@ -35,13 +34,17 @@ namespace hgl
             void *          Map(const uint32 start,const uint32 count);
             void            Flush(const uint32 count);
 
+        private:
+
+            GPUArrayBuffer(GPUDevice *dev,const VkBufferUsageFlags &flag,const uint il,const uint us);
+
+            friend class GPUDevice;
+
         public:
         
-            GPUArrayBuffer(GPUDevice *dev,VkBufferUsageFlags flags,const uint il,VkDescriptorType dt);
             virtual ~GPUArrayBuffer();
 
-            const uint32_t  GetOffsetAlignment()const{return offset_alignment;}
-            const uint32_t  GetUnitSize()const;
+            const uint32_t  GetUnitSize()const{return unit_size;}
             DeviceBuffer *  GetBuffer();
 
             uint32          Alloc(const uint32 max_count);            ///<预分配空间
@@ -56,7 +59,7 @@ namespace hgl
 
                 if(!ptr)return(false);
 
-                ubo_access->Start((uchar *)ptr,offset_alignment,count);
+                ubo_access->Start((uchar *)ptr,start,count);
                 return(true);
             }
 

inc/hgl/graph/VKDevice.h

@@ -22,6 +22,7 @@ VK_NAMESPACE_BEGIN
 class TileData;
 class TileFont;
 class FontSource;
+class GPUArrayBuffer;
 
 /*
  * GPU设备创建信息
@@ -148,6 +149,9 @@ public: //Buffer相关
 
 #undef CREATE_BUFFER_OBJECT
 
+    GPUArrayBuffer *CreateUBO(const VkDeviceSize &uint_size);
+    GPUArrayBuffer *CreateSSBO(const VkDeviceSize &uint_size);
+
 public: //Image
 
     VkImage CreateImage         (VkImageCreateInfo *);

inc/hgl/graph/VKMemoryAllocator.h

@@ -25,7 +25,7 @@ public:
 
     const uint32_t  GetBufferUsageFlagBits  ()const{return buffer_usage_flag_bits;}
 
-    DeviceBuffer *     GetBuffer               (){return gpu_buffer;}
+    DeviceBuffer *  GetBuffer               (){return gpu_buffer;}
 
 public: