optimized first_triangle based on RenderablePrimitiveCreater class.

inc/hgl/graph/VKRenderablePrimitiveCreater.h

@@ -0,0 +1,53 @@
+#ifndef HGL_VK_RENDERABLE_PRIMITIVE_CREATER_INCLUDE
+#define HGL_VK_RENDERABLE_PRIMITIVE_CREATER_INCLUDE
+
+#include<hgl/graph/VKRenderResource.h>
+
+VK_NAMESPACE_BEGIN
+class RenderablePrimitiveCreater
+{
+    RenderResource *rr;
+
+    uint32_t vertex_count;
+
+    Primitive *prim;
+
+public:
+
+    RenderablePrimitiveCreater(RenderResource *_rr,uint32_t vc)
+    {
+        rr=_rr;
+        vertex_count=vc;
+
+        prim=rr->CreatePrimitive(vertex_count);
+    }
+
+    bool SetVBO(const AnsiString &name,const VkFormat &fmt,const void *buf)
+    {
+        VBO *vbo=rr->CreateVBO(fmt,vertex_count,buf);
+
+        if(!vbo)
+            return(false);
+
+        prim->Set(name,vbo);
+        return(true);
+    }
+
+    bool SetIBO(const IndexType &it,const void *buf)
+    {
+        IndexBuffer *ibo=rr->CreateIBO(it,vertex_count,buf);
+    
+        if(!ibo)
+            return(false);
+    
+        prim->Set(ibo);
+        return(true);
+    }
+
+    Renderable *Create(MaterialInstance *mi,Pipeline *p)
+    {
+        return rr->CreateRenderable(prim,mi,p);
+    }
+};//class RenderablePrimitiveCreater
+VK_NAMESPACE_END
+#endif // HGL_VK_RENDERABLE_PRIMITIVE_CREATER_INCLUDE