Preparing the new GL depth test.

Right now, the code is just copied from ApiDemos for the initial setup.

Change-Id: I531f95faca744c7e91fadae189818af3d04a85ee

3 files changed, 329 insertions, 2 deletions

diff --git a/tests/HwAccelerationTest/AndroidManifest.xml b/tests/HwAccelerationTest/AndroidManifest.xml
index 6b70631..544553e 100644
--- a/tests/HwAccelerationTest/AndroidManifest.xml
+++ b/tests/HwAccelerationTest/AndroidManifest.xml
@@ -349,7 +349,7 @@
                 <category android:name="com.android.test.hwui.TEST" />
             </intent-filter>
         </activity>
-        
+
         <activity
                 android:name="GLTextureViewActivity"
                 android:label="TextureView/OpenGL">
@@ -358,7 +358,7 @@
                 <category android:name="com.android.test.hwui.TEST" />
             </intent-filter>
         </activity>
-        
+
         <activity
                 android:name="BitmapMeshActivity"
                 android:label="Bitmaps/Mesh">
@@ -911,5 +911,14 @@
                 <category android:name="com.android.test.hwui.TEST" />
             </intent-filter>
         </activity>
+
+        <activity
+                android:name="GLDepthTestActivity"
+                android:label="Reordering/OpenGL Depth Test">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="com.android.test.hwui.TEST" />
+            </intent-filter>
+        </activity>
     </application>
 </manifest>
diff --git a/tests/HwAccelerationTest/res/drawable/robot.png b/tests/HwAccelerationTest/res/drawable/robot.png
new file mode 100644
index 0000000..8a9e698
--- /dev/null
+++ b/tests/HwAccelerationTest/res/drawable/robot.png
diff --git a/tests/HwAccelerationTest/src/com/android/test/hwui/GLDepthTestActivity.java b/tests/HwAccelerationTest/src/com/android/test/hwui/GLDepthTestActivity.java
new file mode 100644
index 0000000..2ea5219
--- /dev/null
+++ b/tests/HwAccelerationTest/src/com/android/test/hwui/GLDepthTestActivity.java
@@ -0,0 +1,318 @@
+/*
+ * Copyright (C) 2014 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.
+ */
+
+package com.android.test.hwui;
+
+import android.app.Activity;
+import android.app.ActivityManager;
+import android.content.Context;
+import android.content.pm.ConfigurationInfo;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.opengl.GLES20;
+import android.opengl.GLSurfaceView;
+import android.opengl.GLUtils;
+import android.opengl.Matrix;
+import android.os.Bundle;
+import android.os.SystemClock;
+import android.util.Log;
+
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.nio.FloatBuffer;
+
+import javax.microedition.khronos.egl.EGLConfig;
+import javax.microedition.khronos.opengles.GL10;
+
+/**
+ * This sample shows how to check for OpenGL ES 2.0 support at runtime, and then
+ * use either OpenGL ES 1.0 or OpenGL ES 2.0, as appropriate.
+ */
+public class GLDepthTestActivity extends Activity {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        mGLSurfaceView = new GLSurfaceView(this);
+        if (detectOpenGLES20()) {
+            // Tell the surface view we want to create an OpenGL ES
+            // 2.0-compatible
+            // context, and set an OpenGL ES 2.0-compatible renderer.
+            mGLSurfaceView.setEGLContextClientVersion(2);
+            mGLSurfaceView.setRenderer(new GLES20TriangleRenderer(this));
+        } else {
+            throw new IllegalStateException("Can't find OGL ES2.0 context");
+        }
+        setContentView(mGLSurfaceView);
+    }
+
+    private boolean detectOpenGLES20() {
+        ActivityManager am =
+                (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
+        ConfigurationInfo info = am.getDeviceConfigurationInfo();
+        return (info.reqGlEsVersion >= 0x20000);
+    }
+
+    @Override
+    protected void onResume() {
+        // Ideally a game should implement onResume() and onPause()
+        // to take appropriate action when the activity looses focus
+        super.onResume();
+        mGLSurfaceView.onResume();
+    }
+
+    @Override
+    protected void onPause() {
+        // Ideally a game should implement onResume() and onPause()
+        // to take appropriate action when the activity looses focus
+        super.onPause();
+        mGLSurfaceView.onPause();
+    }
+
+    private GLSurfaceView mGLSurfaceView;
+
+    /*
+     * 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.
+     */
+
+    class GLES20TriangleRenderer implements GLSurfaceView.Renderer {
+
+        public GLES20TriangleRenderer(Context context) {
+            mContext = context;
+            mTriangleVertices = ByteBuffer.allocateDirect(mTriangleVerticesData.length
+                    * FLOAT_SIZE_BYTES).order(ByteOrder.nativeOrder()).asFloatBuffer();
+            mTriangleVertices.put(mTriangleVerticesData).position(0);
+        }
+
+        public void onDrawFrame(GL10 glUnused) {
+            // Ignore the passed-in GL10 interface, and use the GLES20
+            // class's static methods instead.
+            GLES20.glClearColor(0.0f, 0.0f, 1.0f, 1.0f);
+            GLES20.glClear(GLES20.GL_DEPTH_BUFFER_BIT | GLES20.GL_COLOR_BUFFER_BIT);
+            GLES20.glUseProgram(mProgram);
+            checkGlError("glUseProgram");
+
+            GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
+            GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mTextureID);
+
+            mTriangleVertices.position(TRIANGLE_VERTICES_DATA_POS_OFFSET);
+            GLES20.glVertexAttribPointer(maPositionHandle, 3, GLES20.GL_FLOAT, false,
+                    TRIANGLE_VERTICES_DATA_STRIDE_BYTES, mTriangleVertices);
+            checkGlError("glVertexAttribPointer maPosition");
+            mTriangleVertices.position(TRIANGLE_VERTICES_DATA_UV_OFFSET);
+            GLES20.glEnableVertexAttribArray(maPositionHandle);
+            checkGlError("glEnableVertexAttribArray maPositionHandle");
+            GLES20.glVertexAttribPointer(maTextureHandle, 2, GLES20.GL_FLOAT, false,
+                    TRIANGLE_VERTICES_DATA_STRIDE_BYTES, mTriangleVertices);
+            checkGlError("glVertexAttribPointer maTextureHandle");
+            GLES20.glEnableVertexAttribArray(maTextureHandle);
+            checkGlError("glEnableVertexAttribArray maTextureHandle");
+
+            long time = SystemClock.uptimeMillis() % 4000L;
+            float angle = 0.090f * ((int) time);
+            Matrix.setRotateM(mMMatrix, 0, angle, 0, 0, 1.0f);
+            Matrix.multiplyMM(mMVPMatrix, 0, mVMatrix, 0, mMMatrix, 0);
+            Matrix.multiplyMM(mMVPMatrix, 0, mProjMatrix, 0, mMVPMatrix, 0);
+
+            GLES20.glUniformMatrix4fv(muMVPMatrixHandle, 1, false, mMVPMatrix, 0);
+            GLES20.glDrawArrays(GLES20.GL_TRIANGLES, 0, 3);
+            checkGlError("glDrawArrays");
+        }
+
+        public void onSurfaceChanged(GL10 glUnused, int width, int height) {
+            // Ignore the passed-in GL10 interface, and use the GLES20
+            // class's static methods instead.
+            GLES20.glViewport(0, 0, width, height);
+            float ratio = (float) width / height;
+            Matrix.frustumM(mProjMatrix, 0, -ratio, ratio, -1, 1, 3, 7);
+        }
+
+        public void onSurfaceCreated(GL10 glUnused, EGLConfig config) {
+            // Ignore the passed-in GL10 interface, and use the GLES20
+            // class's static methods instead.
+            mProgram = createProgram(mVertexShader, mFragmentShader);
+            if (mProgram == 0) {
+                return;
+            }
+            maPositionHandle = GLES20.glGetAttribLocation(mProgram, "aPosition");
+            checkGlError("glGetAttribLocation aPosition");
+            if (maPositionHandle == -1) {
+                throw new RuntimeException("Could not get attrib location for aPosition");
+            }
+            maTextureHandle = GLES20.glGetAttribLocation(mProgram, "aTextureCoord");
+            checkGlError("glGetAttribLocation aTextureCoord");
+            if (maTextureHandle == -1) {
+                throw new RuntimeException("Could not get attrib location for aTextureCoord");
+            }
+
+            muMVPMatrixHandle = GLES20.glGetUniformLocation(mProgram, "uMVPMatrix");
+            checkGlError("glGetUniformLocation uMVPMatrix");
+            if (muMVPMatrixHandle == -1) {
+                throw new RuntimeException("Could not get attrib location for uMVPMatrix");
+            }
+
+            /*
+             * Create our texture. This has to be done each time the surface is
+             * created.
+             */
+
+            int[] textures = new int[1];
+            GLES20.glGenTextures(1, textures, 0);
+
+            mTextureID = textures[0];
+            GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mTextureID);
+
+            GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER,
+                    GLES20.GL_NEAREST);
+            GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D,
+                    GLES20.GL_TEXTURE_MAG_FILTER,
+                    GLES20.GL_LINEAR);
+
+            GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S,
+                    GLES20.GL_REPEAT);
+            GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T,
+                    GLES20.GL_REPEAT);
+
+            InputStream is = mContext.getResources()
+                    .openRawResource(R.drawable.robot);
+            Bitmap bitmap;
+            try {
+                bitmap = BitmapFactory.decodeStream(is);
+            } finally {
+                try {
+                    is.close();
+                } catch (IOException e) {
+                    // Ignore.
+                }
+            }
+
+            GLUtils.texImage2D(GLES20.GL_TEXTURE_2D, 0, bitmap, 0);
+            bitmap.recycle();
+
+            Matrix.setLookAtM(mVMatrix, 0, 0, 0, -5, 0f, 0f, 0f, 0f, 1.0f, 0.0f);
+        }
+
+        private int loadShader(int shaderType, String source) {
+            int shader = GLES20.glCreateShader(shaderType);
+            if (shader != 0) {
+                GLES20.glShaderSource(shader, source);
+                GLES20.glCompileShader(shader);
+                int[] compiled = new int[1];
+                GLES20.glGetShaderiv(shader, GLES20.GL_COMPILE_STATUS, compiled, 0);
+                if (compiled[0] == 0) {
+                    Log.e(TAG, "Could not compile shader " + shaderType + ":");
+                    Log.e(TAG, GLES20.glGetShaderInfoLog(shader));
+                    GLES20.glDeleteShader(shader);
+                    shader = 0;
+                }
+            }
+            return shader;
+        }
+
+        private int createProgram(String vertexSource, String fragmentSource) {
+            int vertexShader = loadShader(GLES20.GL_VERTEX_SHADER, vertexSource);
+            if (vertexShader == 0) {
+                return 0;
+            }
+
+            int pixelShader = loadShader(GLES20.GL_FRAGMENT_SHADER, fragmentSource);
+            if (pixelShader == 0) {
+                return 0;
+            }
+
+            int program = GLES20.glCreateProgram();
+            if (program != 0) {
+                GLES20.glAttachShader(program, vertexShader);
+                checkGlError("glAttachShader");
+                GLES20.glAttachShader(program, pixelShader);
+                checkGlError("glAttachShader");
+                GLES20.glLinkProgram(program);
+                int[] linkStatus = new int[1];
+                GLES20.glGetProgramiv(program, GLES20.GL_LINK_STATUS, linkStatus, 0);
+                if (linkStatus[0] != GLES20.GL_TRUE) {
+                    Log.e(TAG, "Could not link program: ");
+                    Log.e(TAG, GLES20.glGetProgramInfoLog(program));
+                    GLES20.glDeleteProgram(program);
+                    program = 0;
+                }
+            }
+            return program;
+        }
+
+        private void checkGlError(String op) {
+            int error;
+            while ((error = GLES20.glGetError()) != GLES20.GL_NO_ERROR) {
+                Log.e(TAG, op + ": glError " + error);
+                throw new RuntimeException(op + ": glError " + error);
+            }
+        }
+
+        private static final int FLOAT_SIZE_BYTES = 4;
+        private static final int TRIANGLE_VERTICES_DATA_STRIDE_BYTES = 5 * FLOAT_SIZE_BYTES;
+        private static final int TRIANGLE_VERTICES_DATA_POS_OFFSET = 0;
+        private static final int TRIANGLE_VERTICES_DATA_UV_OFFSET = 3;
+        private final float[] mTriangleVerticesData = {
+                                // X, Y, Z, U, V
+                -1.0f, -0.5f, 0, -0.5f, 0.0f,
+                1.0f, -0.5f, 0, 1.5f, -0.0f,
+                0.0f, 1.11803399f, 0, 0.5f, 1.61803399f };
+
+        private FloatBuffer mTriangleVertices;
+
+        private final String mVertexShader =
+                "uniform mat4 uMVPMatrix;\n" +
+                        "attribute vec4 aPosition;\n" +
+                        "attribute vec2 aTextureCoord;\n" +
+                        "varying vec2 vTextureCoord;\n" +
+                        "void main() {\n" +
+                        "  gl_Position = uMVPMatrix * aPosition;\n" +
+                        "  vTextureCoord = aTextureCoord;\n" +
+                        "}\n";
+
+        private final String mFragmentShader =
+                "precision mediump float;\n" +
+                        "varying vec2 vTextureCoord;\n" +
+                        "uniform sampler2D sTexture;\n" +
+                        "void main() {\n" +
+                        "  gl_FragColor = texture2D(sTexture, vTextureCoord);\n" +
+                        "}\n";
+
+        private float[] mMVPMatrix = new float[16];
+        private float[] mProjMatrix = new float[16];
+        private float[] mMMatrix = new float[16];
+        private float[] mVMatrix = new float[16];
+
+        private int mProgram;
+        private int mTextureID;
+        private int muMVPMatrixHandle;
+        private int maPositionHandle;
+        private int maTextureHandle;
+
+        private Context mContext;
+        private static final String TAG = "GLES20TriangleRenderer";
+    }
+
+}