move Bitmap2DLoader codes to TextureLoader.h

inc/hgl/graph/TextureLoader.h

@@ -3,6 +3,7 @@
 
 #include<hgl/io/InputStream.h>
 #include<hgl/type/BaseString.h>
+#include<hgl/graph/Bitmap.h>
 namespace hgl
 {
     namespace graph
@@ -54,6 +55,27 @@ namespace hgl
             bool Load(io::InputStream *is);
             bool Load(const OSString &filename);
         };//class Texture2DLoader
+        
+        /**
+         * 2D位图加载
+         */
+        class Bitmap2DLoader:public Texture2DLoader
+        {
+        protected:
+
+            BitmapData *bmp=nullptr;
+
+        public:
+
+            ~Bitmap2DLoader();
+
+            void *OnBegin(uint32 total_bytes) override;
+            void OnEnd() override {}
+
+            BitmapData *GetBitmap();
+        };//class Bitmap2DLoader
+    
+        BitmapData *LoadBitmapFromFile(const OSString &filename);
     }//namespace graph
 }//namespace hgl
 #endif//HGL_GRAPH_TEXTURE_LOADER_INCLUDE

src/SceneGraph/Texture2DLoader.cpp

@@ -53,41 +53,32 @@ namespace hgl
 
     namespace graph
     {
-        class Bitmap2DLoader:public Texture2DLoader
+        Bitmap2DLoader::~Bitmap2DLoader()
         {
-        protected:
+            SAFE_CLEAR(bmp);
+        }
 
-            BitmapData *bmp=nullptr;
+        void *Bitmap2DLoader::OnBegin(uint32 total_bytes)
+        {
+            SAFE_CLEAR(bmp);
 
-        public:
+            bmp=new BitmapData;
 
-            ~Bitmap2DLoader()
-            {
-                SAFE_CLEAR(bmp);
-            }
+            bmp->width      =file_header.width;
+            bmp->height     =file_header.height;
+            bmp->total_bytes=total_bytes;
 
-            void *OnBegin(uint32 total_bytes) override
-            {
-                bmp=new BitmapData;
+            bmp->data=new char[total_bytes];
 
-                bmp->width      =file_header.width;
-                bmp->height     =file_header.height;
-                bmp->total_bytes=total_bytes;
+            return bmp->data;
+        }
 
-                bmp->data=new char[total_bytes];
-
-                return bmp->data;
-            }
-
-            void OnEnd() override {}
-
-            BitmapData *GetBitmap()
-            {
-                BitmapData *result=bmp;
-                bmp=nullptr;
-                return result;
-            }
-        };//class Bitmap2DLoader
+        BitmapData *Bitmap2DLoader::GetBitmap()
+        {
+            BitmapData *result=bmp;
+            bmp=nullptr;
+            return result;
+        }
     
         BitmapData *LoadBitmapFromFile(const OSString &filename)
         {