diff --git a/kitty/graphics.h b/kitty/graphics.h
index 55015e88a..daad0bb45 100644
--- a/kitty/graphics.h
+++ b/kitty/graphics.h
@@ -121,6 +121,24 @@ typedef struct {
     bool has_margins;
 } ScrollData;
 
+
+static inline float
+gl_size(const unsigned int sz, const unsigned int viewport_size) {
+    // convert pixel sz to OpenGL co-ordinate system.
+    const float px = 2.f / viewport_size;
+    return px * sz;
+}
+
+static inline float
+clamp_position_to_nearest_pixel(float pos, const unsigned int viewport_size) {
+    // clamp the specified opengl position to the nearest pixel
+    const float px = 2.f / viewport_size;
+    const float distance =  pos + 1.f;
+    const float num_of_pixels = roundf(distance / px);
+    return -1.f + num_of_pixels * px;
+}
+
+
 GraphicsManager* grman_alloc(void);
 void grman_clear(GraphicsManager*, bool, CellPixelSize fg);
 const char* grman_handle_command(GraphicsManager *self, const GraphicsCommand *g, const uint8_t *payload, Cursor *c, bool *is_dirty, CellPixelSize fg);
diff --git a/kitty/shaders.c b/kitty/shaders.c
index d32cfd0c1..1a57826ff 100644
--- a/kitty/shaders.c
+++ b/kitty/shaders.c
@@ -588,24 +588,6 @@ render_window_title(OSWindow *os_window, Screen *screen UNUSED, GLfloat xstart,
     return 2.f * (GLfloat)bar_height / (GLfloat)os_window->viewport_height;
 }
 
-static GLfloat
-gl_size(const unsigned int sz, const unsigned int viewport_size) {
-    // convert sz to OpenGL co-ordinate system. Checks that mapping back via roundf()
-    // yields the same value.
-    const GLfloat px = 2.f / viewport_size;
-    GLfloat ans = px * sz;
-    const unsigned int mapped_val = (unsigned int)roundf((ans * viewport_size) / 2.f);
-    return ans + px * (sz - mapped_val);
-}
-
-static GLfloat
-clamp_position_to_nearest_pixel(GLfloat pos, const unsigned int viewport_size) {
-    const GLfloat px = 2.f / viewport_size;
-    const GLfloat distance =  pos + 1.f;
-    const GLfloat num_of_pixels = roundf(distance / px);
-    return -1.f + num_of_pixels * px;
-}
-
 static void
 draw_window_logo(ssize_t vao_idx, OSWindow *os_window, const WindowLogoRenderData *wl, const CellRenderData *crd) {
     if (os_window->live_resize.in_progress) return;