Add glOrtho equivalent to the OpenGL ES 2.0 renderer.
Change-Id: I063dad3d81dab7833acb1e7a9c7121f8efd2a044
diff --git a/libs/hwui/UIMatrix.h b/libs/hwui/UIMatrix.h
new file mode 100644
index 0000000..55d7c07
--- /dev/null
+++ b/libs/hwui/UIMatrix.h
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2010 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_UI_MATRIX_H
+#define ANDROID_UI_MATRIX_H
+
+namespace android {
+
+///////////////////////////////////////////////////////////////////////////////
+// Classes
+///////////////////////////////////////////////////////////////////////////////
+
+class Matrix4 {
+public:
+ Matrix4() {
+ loadIdentity();
+ }
+
+ Matrix4(const float* v) {
+ load(v);
+ }
+
+ Matrix4(const Matrix4& v) {
+ load(v);
+ }
+
+ void loadIdentity();
+
+ void load(const float* v);
+ void load(const Matrix4& v);
+
+ void loadTranslate(float x, float y, float z);
+ void loadScale(float sx, float sy, float sz);
+ void loadRotate(float angle, float x, float y, float z);
+ void loadMultiply(const Matrix4& u, const Matrix4& v);
+
+ void loadOrtho(float left, float right, float bottom, float top, float near, float far);
+
+ void multiply(const Matrix4& v) {
+ Matrix4 u;
+ u.loadMultiply(*this, v);
+ load(u);
+ }
+
+ void translate(float x, float y, float z) {
+ Matrix4 u;
+ u.loadTranslate(x, y, z);
+ multiply(u);
+ }
+
+ void scale(float sx, float sy, float sz) {
+ Matrix4 u;
+ u.loadScale(sx, sy, sz);
+ multiply(u);
+ }
+
+ void rotate(float angle, float x, float y, float z) {
+ Matrix4 u;
+ u.loadRotate(angle, x, y, z);
+ multiply(u);
+ }
+
+ void copyTo(float* v) const;
+
+ void dump() const;
+
+//private:
+ inline float get(int i, int j) const {
+ return mMat[i * 4 + j];
+ }
+
+ inline void set(int i, int j, float v) {
+ mMat[i * 4 + j] = v;
+ }
+
+ float mMat[16];
+}; // class Matrix4
+
+///////////////////////////////////////////////////////////////////////////////
+// Types
+///////////////////////////////////////////////////////////////////////////////
+
+typedef Matrix4 mat4;
+
+}; // namespace android
+
+#endif // ANDROID_UI_MATRIX_H