1 files changed, 80 insertions, 0 deletions
diff --git a/BenchmarkFramework/app/src/main/java/graphics_benchmarks/kubench/M4.java b/BenchmarkFramework/app/src/main/java/graphics_benchmarks/kubench/M4.java
new file mode 100644
index 0000000..efda41d
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+++ b/BenchmarkFramework/app/src/main/java/graphics_benchmarks/kubench/M4.java
@@ -0,0 +1,80 @@
+/* 
+ * Copyright (C) 2008 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package graphics_benchmarks.kubench;
+
+/** 
+ * 
+ * A 4x4 float matrix
+ *
+ */
+public class M4 {
+    public float[][] m = new float[4][4];
+    
+    public M4() {
+    }
+    
+    public M4(M4 other) {
+        for (int i = 0; i < 4; i++) {
+            for (int j = 0; j < 4; j++) {
+                m[i][j] = other.m[i][j];
+            }
+        }        
+    }
+
+    public void multiply(GLVertex src, GLVertex dest) {
+        dest.x = src.x * m[0][0] + src.y * m[1][0] + src.z * m[2][0] + m[3][0];
+        dest.y = src.x * m[0][1] + src.y * m[1][1] + src.z * m[2][1] + m[3][1];
+        dest.z = src.x * m[0][2] + src.y * m[1][2] + src.z * m[2][2] + m[3][2];
+    }
+    
+    public M4 multiply(M4 other) {
+        M4 result = new M4();
+        float[][] m1 = m;
+        float[][] m2 = other.m;
+        
+        for (int i = 0; i < 4; i++) {
+            for (int j = 0; j < 4; j++) {
+                result.m[i][j] = m1[i][0]*m2[0][j] + m1[i][1]*m2[1][j] + m1[i][2]*m2[2][j] + m1[i][3]*m2[3][j];
+            }
+        }
+        
+        return result;
+    }
+    
+    public void setIdentity() {
+        for (int i = 0; i < 4; i++) {
+            for (int j = 0; j < 4; j++) {
+                m[i][j] = (i == j ? 1f : 0f);
+            }
+        }
+    }
+    
+    @Override
+    public String toString() {
+        StringBuilder builder = new StringBuilder("[ ");
+        for (int i = 0; i < 4; i++) {
+            for (int j = 0; j < 4; j++) {
+                builder.append(m[i][j]);
+                builder.append(" ");
+            }
+            if (i < 2)
+                builder.append("\n  ");
+        }
+        builder.append(" ]");
+        return builder.toString();
+    }
+}