1 files changed, 84 insertions, 0 deletions
diff --git a/libs/rs/rsMatrix.h b/libs/rs/rsMatrix.h
new file mode 100644
index 0000000..619b494
--- /dev/null
+++ b/libs/rs/rsMatrix.h
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * 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.
+ */
+
+#ifndef ANDROID_RS_MATRIX_H
+#define ANDROID_RS_MATRIX_H
+
+
+
+// ---------------------------------------------------------------------------
+namespace android {
+namespace renderscript {
+
+struct Matrix 
+{
+    float m[16];
+
+    inline float get(int i, int j) const {
+        return m[i*4 + j];
+    }
+
+    inline void set(int i, int j, float v) {
+        m[i*4 + j] = v;
+    }
+
+    void loadIdentity();
+    void load(const float *);
+    void load(const Matrix *);
+
+    void loadRotate(float rot, float x, float y, float z);
+    void loadScale(float x, float y, float z);
+    void loadTranslate(float x, float y, float z);
+    void loadMultiply(const Matrix *lhs, const Matrix *rhs);
+
+    void multiply(const Matrix *rhs) {
+        Matrix tmp;
+        tmp.loadMultiply(this, rhs);
+        load(&tmp);
+    }
+    void rotate(float rot, float x, float y, float z) {
+        Matrix tmp;
+        tmp.loadRotate(rot, x, y, z);
+        multiply(&tmp);
+    }
+    void scale(float x, float y, float z) {
+        Matrix tmp;
+        tmp.loadScale(x, y, z);
+        multiply(&tmp);
+    }
+    void translate(float x, float y, float z) {
+        Matrix tmp;
+        tmp.loadTranslate(x, y, z);
+        multiply(&tmp);
+    }
+
+
+
+};
+    
+
+
+}
+}
+
+
+
+
+#endif
+
+
+
+