From e00881804f4e3be2f332b6fdd67885f8af124e6d Mon Sep 17 00:00:00 2001
From: David Fioramonti
Date: Thu, 24 May 2018 17:48:55 -0700
Subject: GFX: Use degree conversion common math funcs

---
 graphics/transform_tools.cpp     | 3 ++-
 graphics/transparent_surface.cpp | 5 +++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/graphics/transform_tools.cpp b/graphics/transform_tools.cpp
index 6e87b6321a..a0617ff236 100644
--- a/graphics/transform_tools.cpp
+++ b/graphics/transform_tools.cpp
@@ -22,12 +22,13 @@
 
 
 #include "graphics/transform_tools.h"
+#include "common/math.h"
 #include <math.h>
 
 namespace Graphics {
 
 FloatPoint TransformTools::transformPoint(FloatPoint point, const float rotate, const Common::Point &zoom, const bool mirrorX, const bool mirrorY) {
-	float rotateRad = rotate * M_PI / 180.0f;
+	float rotateRad = Common::deg2rad<float>(rotate);
 	float x = point.x;
 	float y = point.y;
 	x = (x * zoom.x) / kDefaultZoomX;
diff --git a/graphics/transparent_surface.cpp b/graphics/transparent_surface.cpp
index 10f69b5281..2a6fa7bfdf 100644
--- a/graphics/transparent_surface.cpp
+++ b/graphics/transparent_surface.cpp
@@ -796,8 +796,9 @@ TransparentSurface *TransparentSurface::rotoscaleT(const TransformStruct &transf
 	}
 
 	uint32 invAngle = 360 - (transform._angle % 360);
-	float invCos = cos(invAngle * M_PI / 180.0);
-	float invSin = sin(invAngle * M_PI / 180.0);
+	float invAngleRad = Common::deg2rad<uint32,float>(invAngle);
+	float invCos = cos(invAngleRad);
+	float invSin = sin(invAngleRad);
 
 	int icosx = (int)(invCos * (65536.0f * kDefaultZoomX / transform._zoom.x));
 	int isinx = (int)(invSin * (65536.0f * kDefaultZoomX / transform._zoom.x));
-- 
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