diff --git a/.gitignore b/.gitignore
index 9a7c53c..0f9a0ed 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,6 @@
 asset/*test*/**
+asset/stdout.txt
+asset/stderr.txt
 build/**
 build_*/**
 thirdparty/**
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 98d18d3..15af06e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -281,7 +281,6 @@ set(CMAKE_CXX_STANDARD 11)
 set(ONSYURI_CODE
     src/onsyuri/AnimationInfo.cpp
     src/onsyuri/coding2utf16.cpp
-    src/onsyuri/conv_shared.cpp
     src/onsyuri/DirectReader.cpp
     src/onsyuri/DirtyRect.cpp
     src/onsyuri/FontInfo.cpp
diff --git a/src/onsyuri/ONScripter.cpp b/src/onsyuri/ONScripter.cpp
index b0792ad..210feba 100644
--- a/src/onsyuri/ONScripter.cpp
+++ b/src/onsyuri/ONScripter.cpp
@@ -799,7 +799,7 @@ void ONScripter::flush( int refresh_mode, SDL_Rect *rect, bool clear_dirty_flag,
 
 void ONScripter::flushDirect( SDL_Rect &rect, int refresh_mode )
 {
-    // utils::printInfo("flush %d: %d %d %d %d\n", refresh_mode, rect.x, rect.y, rect.w, rect.h );
+    // printf("## flush %d: %d %d %d %d\n", refresh_mode, rect.x, rect.y, rect.w, rect.h );
     
     SDL_Rect dst_rect = rect;
 
diff --git a/src/onsyuri/ONScripter_command.cpp b/src/onsyuri/ONScripter_command.cpp
index 4b80cb5..f7b12ee 100644
--- a/src/onsyuri/ONScripter_command.cpp
+++ b/src/onsyuri/ONScripter_command.cpp
@@ -3676,6 +3676,17 @@ int ONScripter::bltCommand()
         src_rect.x -= blt_texture_src_rect.x;
         src_rect.y -= blt_texture_src_rect.y;
         screen_dirty_flag = true;
+
+        // printf("## flush src(%d, %d, %d, %d), dst(%d, %d, %d, %d)\n", 
+        //     src_rect.x, src_rect.y, src_rect.w, src_rect.h,
+        //     dst_rect.x, dst_rect.y, dst_rect.w, dst_rect.h);
+        
+        // fix blt scale
+        dst_rect.x += render_view_rect.x;
+        dst_rect.y += render_view_rect.y;
+        dst_rect.w /= screen_scale_ratio1;
+        dst_rect.h /= screen_scale_ratio2;
+
         SDL_RenderCopy(renderer, blt_texture, &src_rect, &dst_rect);
         SDL_RenderPresent(renderer);
         dirty_rect.clear();