From c8c49c573bda7c6d74eed390842b7a0bbdf873f5 Mon Sep 17 00:00:00 2001
From: "reed@android.com"
 <reed@android.com@2bbb7eff-a529-9590-31e7-b0007b416f81>
Date: Wed, 24 Feb 2010 15:36:57 +0000
Subject: add tests for translate, concat, scale

git-svn-id: http://skia.googlecode.com/svn/trunk@510 2bbb7eff-a529-9590-31e7-b0007b416f81
---
 experimental/SkMatrix44.h | 48 +++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 44 insertions(+), 4 deletions(-)

(limited to 'experimental/SkMatrix44.h')

diff --git a/experimental/SkMatrix44.h b/experimental/SkMatrix44.h
index 0e47890e3f..cb4fdbf07f 100644
--- a/experimental/SkMatrix44.h
+++ b/experimental/SkMatrix44.h
@@ -3,11 +3,42 @@
 
 #include "SkScalar.h"
 
-typedef float SkMScalar;
+// uncomment this to use doubles for matrix44
+#define SK_MSCALAR_IS_DOUBLE
+
+#ifdef SK_MSCALAR_IS_DOUBLE
+    typedef double SkMScalar;
+    static inline double SkFloatToMScalar(float x) {
+        return static_cast<double>(x);
+    }
+    static inline float SkMScalarToFloat(double x) {
+        return static_cast<float>(x);
+    }
+    static inline double SkDoubleToMScalar(double x) {
+        return x;
+    }
+    static inline double SkMScalarToDouble(double x) {
+        return x;
+    }
+#else
+    typedef float SkMScalar;
+    static inline float SkFloatToMScalar(float x) {
+        return x;
+    }
+    static inline float SkMScalarToFloat(float x) {
+        return x;
+    }
+    static inline float SkDoubleToMScalar(double x) {
+        return static_cast<float>(x);
+    }
+    static inline double SkMScalarToDouble(float x) {
+        return static_cast<double>(x);
+    }
+#endif
+
 static const SkMScalar SK_MScalar1 = 1;
-static inline SkMScalar SkDoubleToMScalar(double x) {
-    return static_cast<float>(x);
-}
+
+///////////////////////////////////////////////////////////////////////////////
 
 struct SkVector4 {
 	SkScalar fData[4];
@@ -19,7 +50,16 @@ public:
 	SkMatrix44(const SkMatrix44&);
 	SkMatrix44(const SkMatrix44& a, const SkMatrix44& b);
 
+    bool operator==(const SkMatrix44& other) const {
+        return !memcmp(this, &other, sizeof(*this));
+    }
+    bool operator!=(const SkMatrix44& other) const {
+        return !!memcmp(this, &other, sizeof(*this));
+    }
+    
+    bool isIdentity() const;
 	void setIdentity();
+    void reset() { this->setIdentity(); }
 
 	void setTranslate(SkMScalar dx, SkMScalar dy, SkMScalar dz);
 	void preTranslate(SkMScalar dx, SkMScalar dy, SkMScalar dz);
-- 
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