add calcImageRect into each renderer. but copy function body to shared file.

1 files changed, 7 insertions, 1 deletions

diff --git a/src/render/sdl2graphics.h b/src/render/sdl2graphics.h
index 25a3a74b3..b7e430f16 100644
--- a/src/render/sdl2graphics.h
+++ b/src/render/sdl2graphics.h
@@ -115,7 +115,7 @@ class SDLGraphics final : public Graphics
                      const int x2, const int y2,
                      const int width, const int height) override final;
 
-        bool calcWindow(ImageCollection *const vertCol,
+        void calcWindow(ImageCollection *const vertCol,
                         const int x, const int y,
                         const int w, const int h,
                         const ImageRect &imgRect) override final;
@@ -162,6 +162,12 @@ class SDLGraphics final : public Graphics
         uint32_t mOldPixel;
         int mOldAlpha;
 
+    private:
+        void inline calcImageRect(ImageVertexes *const vert,
+                                  int x, int y,
+                                  int w, int h,
+                                  const ImageRect &imgRect);
+
 };
 
 #endif  // USE_SDL2