Add perf benchmarks and more unit tests for matrix inversion

R=jvanverth@google.com, reed@google.com

Author: shawnsingh@chromium.org

Review URL: https://chromiumcodereview.appspot.com/22886010

git-svn-id: http://skia.googlecode.com/svn/trunk@10836 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 88 insertions, 16 deletions

diff --git a/bench/Matrix44Bench.cpp b/bench/Matrix44Bench.cpp
index dd1de59529..7baf82ae4d 100644
--- a/bench/Matrix44Bench.cpp
+++ b/bench/Matrix44Bench.cpp
@@ -79,22 +79,91 @@ private:
 class InvertMatrix44Bench : public Matrix44Bench {
 public:
     InvertMatrix44Bench(void* param) : INHERITED(param, "invert") {
-    fM0.set(0, 0, -1.1);
-    fM0.set(0, 1, 2.1);
-    fM0.set(0, 2, -3.1);
-    fM0.set(0, 3, 4.1);
-    fM0.set(1, 0, 5.1);
-    fM0.set(1, 1, -6.1);
-    fM0.set(1, 2, 7.1);
-    fM0.set(1, 3, 8.1);
-    fM0.set(2, 0, -9.1);
-    fM0.set(2, 1, 10.1);
-    fM0.set(2, 2, 11.1);
-    fM0.set(2, 3, -12.1);
-    fM0.set(3, 0, -13.1);
-    fM0.set(3, 1, 14.1);
-    fM0.set(3, 2, -15.1);
-    fM0.set(3, 3, 16.1);
+        fM0.set(0, 0, -1.1);
+        fM0.set(0, 1, 2.1);
+        fM0.set(0, 2, -3.1);
+        fM0.set(0, 3, 4.1);
+        fM0.set(1, 0, 5.1);
+        fM0.set(1, 1, -6.1);
+        fM0.set(1, 2, 7.1);
+        fM0.set(1, 3, 8.1);
+        fM0.set(2, 0, -9.1);
+        fM0.set(2, 1, 10.1);
+        fM0.set(2, 2, 11.1);
+        fM0.set(2, 3, -12.1);
+        fM0.set(3, 0, -13.1);
+        fM0.set(3, 1, 14.1);
+        fM0.set(3, 2, -15.1);
+        fM0.set(3, 3, 16.1);
+    }
+protected:
+    virtual void performTest() {
+        for (int i = 0; i < 10; ++i) {
+            fM0.invert(&fM1);
+        }
+    }
+private:
+    SkMatrix44 fM0, fM1;
+    typedef Matrix44Bench INHERITED;
+};
+
+class InvertAffineMatrix44Bench : public Matrix44Bench {
+public:
+    InvertAffineMatrix44Bench(void* param) : INHERITED(param, "invertaffine") {
+        fM0.set(0, 0, -1.1);
+        fM0.set(0, 1, 2.1);
+        fM0.set(0, 2, -3.1);
+        fM0.set(0, 3, 4.1);
+        fM0.set(1, 0, 5.1);
+        fM0.set(1, 1, -6.1);
+        fM0.set(1, 2, 7.1);
+        fM0.set(1, 3, 8.1);
+        fM0.set(2, 0, -9.1);
+        fM0.set(2, 1, 10.1);
+        fM0.set(2, 2, 11.1);
+        fM0.set(2, 3, -12.1);
+        // bottom row (perspective component) remains (0, 0, 0, 1).
+    }
+protected:
+    virtual void performTest() {
+        for (int i = 0; i < 10; ++i) {
+            fM0.invert(&fM1);
+        }
+    }
+private:
+    SkMatrix44 fM0, fM1;
+    typedef Matrix44Bench INHERITED;
+};
+
+class InvertScaleTranslateMatrix44Bench : public Matrix44Bench {
+public:
+    InvertScaleTranslateMatrix44Bench(void* param) : INHERITED(param, "invertscaletranslate") {
+        fM0.set(0, 0, -1.1);
+        fM0.set(0, 3, 4.1);
+
+        fM0.set(1, 1, -6.1);
+        fM0.set(1, 3, 8.1);
+
+        fM0.set(2, 2, 11.1);
+        fM0.set(2, 3, -12.1);
+    }
+protected:
+    virtual void performTest() {
+        for (int i = 0; i < 10; ++i) {
+            fM0.invert(&fM1);
+        }
+    }
+private:
+    SkMatrix44 fM0, fM1;
+    typedef Matrix44Bench INHERITED;
+};
+
+class InvertTranslateMatrix44Bench : public Matrix44Bench {
+public:
+    InvertTranslateMatrix44Bench(void* param) : INHERITED(param, "inverttranslate") {
+        fM0.set(0, 3, 4.1);
+        fM0.set(1, 3, 8.1);
+        fM0.set(2, 3, -12.1);
     }
 protected:
     virtual void performTest() {
@@ -167,5 +236,8 @@ DEF_BENCH( return new EqualsMatrix44Bench(p); )
 DEF_BENCH( return new PreScaleMatrix44Bench(p); )
 DEF_BENCH( return new PostScaleMatrix44Bench(p); )
 DEF_BENCH( return new InvertMatrix44Bench(p); )
+DEF_BENCH( return new InvertAffineMatrix44Bench(p); )
+DEF_BENCH( return new InvertScaleTranslateMatrix44Bench(p); )
+DEF_BENCH( return new InvertTranslateMatrix44Bench(p); )
 DEF_BENCH( return new SetConcatMatrix44Bench(p); )
 DEF_BENCH( return new GetTypeMatrix44Bench(p); )