Added functions to draw images at sub-pixel positions

This can be used for smoother mouse cursor movement when rendering our
own mouse cursor (already changed in this commit) and is also necessary
for implementing support for HiDPI font rendering.

Also dropped some almost duplicated OpenGL code.

1 files changed, 7 insertions, 6 deletions

diff --git a/src/openglgraphics.h b/src/openglgraphics.h
index ab08d075..dbeab80a 100644
--- a/src/openglgraphics.h
+++ b/src/openglgraphics.h
@@ -57,12 +57,6 @@ class OpenGLGraphics final : public Graphics
 
         void updateSize(int windowWidth, int windowHeight, float scale) override;
 
-        bool drawImage(Image *image,
-                       int srcX, int srcY,
-                       int dstX, int dstY,
-                       int width, int height,
-                       bool useColor) override;
-
         /**
          * Draws a rescaled version of the image
          */
@@ -72,6 +66,13 @@ class OpenGLGraphics final : public Graphics
                                int desiredWidth, int desiredHeight,
                                bool useColor) override;
 
+        bool drawRescaledImageF(Image *image,
+                                int srcX, int srcY,
+                                float dstX, float dstY,
+                                int width, int height,
+                                float desiredWidth, float desiredHeight,
+                                bool useColor) override;
+
         void drawImagePattern(Image *image,
                               int x, int y,
                               int w, int h) override;