Added support for HiDPI fonts

* TrueTypeFont class now takes into account the graphics scale, in order
  to render an appropriate higher-resolution texture.

* Removed TrueTypeFont::fontCounter, since TTF_Init/TTF_Quit already
  keep a counter.

* Avoid copying the rendered string needlessly, when it already exists
  in the cache. Avoid another copy, when inserting a new chunk into the
  cache.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/sdlgraphics.cpp b/src/sdlgraphics.cpp
index dc56496e..a2fc2268 100644
--- a/src/sdlgraphics.cpp
+++ b/src/sdlgraphics.cpp
@@ -101,6 +101,7 @@ void SDLGraphics::updateSize(int windowWidth, int windowHeight, float scale)
 
     mWidth = std::ceil(mWidth / scaleX);
     mHeight = std::ceil(mHeight / scaleY);
+    mScale = scaleX;
 
     SDL_RenderSetScale(mRenderer, scaleX, scaleY);
 }