1 files changed, 0 insertions, 50 deletions
diff --git a/src/libui_sdl/libui/common/matrix.c b/src/libui_sdl/libui/common/matrix.c
deleted file mode 100644
index 676885d..0000000
--- a/src/libui_sdl/libui/common/matrix.c
+++ /dev/null
@@ -1,50 +0,0 @@
-// 11 october 2015
-#include <math.h>
-#include "../ui.h"
-#include "uipriv.h"
-
-void uiDrawMatrixSetIdentity(uiDrawMatrix *m)
-{
-	m->M11 = 1;
-	m->M12 = 0;
-	m->M21 = 0;
-	m->M22 = 1;
-	m->M31 = 0;
-	m->M32 = 0;
-}
-
-// The rest of this file provides basic utilities in case the platform doesn't provide any of its own for these tasks.
-// Keep these as minimal as possible. They should generally not call other fallbacks.
-
-// see https://msdn.microsoft.com/en-us/library/windows/desktop/ff684171%28v=vs.85%29.aspx#skew_transform
-// TODO see if there's a way we can avoid the multiplication
-void fallbackSkew(uiDrawMatrix *m, double x, double y, double xamount, double yamount)
-{
-	uiDrawMatrix n;
-
-	uiDrawMatrixSetIdentity(&n);
-	// TODO explain this
-	n.M12 = tan(yamount);
-	n.M21 = tan(xamount);
-	n.M31 = -y * tan(xamount);
-	n.M32 = -x * tan(yamount);
-	uiDrawMatrixMultiply(m, &n);
-}
-
-void scaleCenter(double xCenter, double yCenter, double *x, double *y)
-{
-	*x = xCenter - (*x * xCenter);
-	*y = yCenter - (*y * yCenter);
-}
-
-// the basic algorithm is from cairo
-// but it's the same algorithm as the transform point, just without M31 and M32 taken into account, so let's just do that instead
-void fallbackTransformSize(uiDrawMatrix *m, double *x, double *y)
-{
-	uiDrawMatrix m2;
-
-	m2 = *m;
-	m2.M31 = 0;
-	m2.M32 = 0;
-	uiDrawMatrixTransformPoint(&m2, x, y);
-}