From c19d0fffe725eddd04e623d53c36b0400c16aa4a Mon Sep 17 00:00:00 2001
From: "HuYingzhuo(hugo/hyzboy)" <hyzboy@gmail.com>
Date: Tue, 11 Jul 2023 20:19:51 +0800
Subject: [PATCH] added BlendBitmap<>

---
 inc/hgl/2d/Bitmap.h |  6 ++++++
 inc/hgl/2d/Blend.h  | 15 +++++++++++++--
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/inc/hgl/2d/Bitmap.h b/inc/hgl/2d/Bitmap.h
index fa30195..bbc6812 100644
--- a/inc/hgl/2d/Bitmap.h
+++ b/inc/hgl/2d/Bitmap.h
@@ -48,6 +48,12 @@ namespace hgl
                 return (x<0||x>=width||y<0||y>=height)?nullptr:data+(y*width+x);
             }
 
+            const T *GetData()const{return data;}
+            const T *GetData(int x,int y)const
+            {
+                return (x<0||x>=width||y<0||y>=height)?nullptr:data+(y*width+x);
+            }
+
             bool Create(uint w,uint h)
             {
                 if(!w||!h)return(false);
diff --git a/inc/hgl/2d/Blend.h b/inc/hgl/2d/Blend.h
index 3b16ad0..618ec91 100644
--- a/inc/hgl/2d/Blend.h
+++ b/inc/hgl/2d/Blend.h
@@ -1,6 +1,7 @@
-#pragma once
+#pragma once
 
 #include<hgl/type/DataType.h>
+#include<hgl/2d/Bitmap.h>
 
 namespace hgl
 {
@@ -18,5 +19,15 @@ namespace hgl
                 return src;
             }
         };//template<typename T> struct BlendColor
+
+        /**
+         * 位图混合处理模板
+         */
+        template<typename ST,typename DT> class BlendBitmap
+        {
+        public:
+
+            void operator ()(const Bitmap<ST> *src,Bitmap<DT> *dst,const float alpha)const;
+        };//template<typename ST,typename DT> class BlendBitmap
     }//namespace bitmap
-}//namespace hgl
\ No newline at end of file
+}//namespace hgl