Create samples showing how to call OpenGL from JNI libraries.
diff --git a/opengl/tests/gl_jni/Android.mk b/opengl/tests/gl_jni/Android.mk
new file mode 100644
index 0000000..4029fa1
--- /dev/null
+++ b/opengl/tests/gl_jni/Android.mk
@@ -0,0 +1,53 @@
+#########################################################################
+# OpenGL ES JNI sample
+# This makefile builds both an activity and a shared library.
+#########################################################################
+ifneq ($(TARGET_SIMULATOR),true) # not 64 bit clean
+
+TOP_LOCAL_PATH:= $(call my-dir)
+
+# Build activity
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_TAGS := user
+
+LOCAL_SRC_FILES := $(call all-subdir-java-files)
+
+LOCAL_PACKAGE_NAME := GLJNI
+
+LOCAL_JNI_SHARED_LIBRARIES := libgljni
+
+include $(BUILD_PACKAGE)
+
+#########################################################################
+# Build JNI Shared Library
+#########################################################################
+
+LOCAL_PATH:= $(LOCAL_PATH)/jni
+
+include $(CLEAR_VARS)
+
+# Optional tag would mean it doesn't get installed by default
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_CFLAGS := -Werror
+
+LOCAL_SRC_FILES:= \
+ gl_code.cpp
+
+LOCAL_SHARED_LIBRARIES := \
+ libutils \
+ libEGL \
+ libGLESv1_CM
+
+LOCAL_MODULE := libgljni
+
+LOCAL_ARM_MODE := arm
+
+LOCAL_PRELINK_MODULE := false
+
+include $(BUILD_SHARED_LIBRARY)
+
+endif # TARGET_SIMULATOR
diff --git a/opengl/tests/gl_jni/AndroidManifest.xml b/opengl/tests/gl_jni/AndroidManifest.xml
new file mode 100644
index 0000000..64bd6bf
--- /dev/null
+++ b/opengl/tests/gl_jni/AndroidManifest.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+**
+** Copyright 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.
+*/
+-->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+ package="com.android.gljni">
+ <uses-permission android:name="android.permission.INTERNET" />
+ <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+ <application
+ android:label="@string/gljni_activity">
+ <activity android:name="GLJNIActivity"
+ android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
+ android:launchMode="singleTask"
+ android:screenOrientation="landscape"
+ android:configChanges="orientation|keyboardHidden">
+ <intent-filter>
+ <action android:name="android.intent.action.MAIN" />
+ <category android:name="android.intent.category.LAUNCHER" />
+ </intent-filter>
+ </activity>
+ </application>
+</manifest>
diff --git a/opengl/tests/gl_jni/jni/gl_code.cpp b/opengl/tests/gl_jni/jni/gl_code.cpp
new file mode 100644
index 0000000..b85a433
--- /dev/null
+++ b/opengl/tests/gl_jni/jni/gl_code.cpp
@@ -0,0 +1,177 @@
+// OpenGL ES 1.0 code
+
+#include <nativehelper/jni.h>
+#define LOG_TAG "GLJNI gl_code.cpp"
+#include <utils/Log.h>
+#include <GLES/gl.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+GLuint texture;
+
+#define FIXED_ONE 0x10000
+
+static void printGLString(const char *name, GLenum s) {
+ const char *v = (const char *) glGetString(s);
+ LOGI("GL %s = %s\n", name, v);
+}
+
+static void gluLookAt(float eyeX, float eyeY, float eyeZ,
+ float centerX, float centerY, float centerZ, float upX, float upY,
+ float upZ)
+{
+ // See the OpenGL GLUT documentation for gluLookAt for a description
+ // of the algorithm. We implement it in a straightforward way:
+
+ float fx = centerX - eyeX;
+ float fy = centerY - eyeY;
+ float fz = centerZ - eyeZ;
+
+ // Normalize f
+ float rlf = 1.0f / sqrtf(fx*fx + fy*fy + fz*fz);
+ fx *= rlf;
+ fy *= rlf;
+ fz *= rlf;
+
+ // Normalize up
+ float rlup = 1.0f / sqrtf(upX*upX + upY*upY + upZ*upZ);
+ upX *= rlup;
+ upY *= rlup;
+ upZ *= rlup;
+
+ // compute s = f x up (x means "cross product")
+
+ float sx = fy * upZ - fz * upY;
+ float sy = fz * upX - fx * upZ;
+ float sz = fx * upY - fy * upX;
+
+ // compute u = s x f
+ float ux = sy * fz - sz * fy;
+ float uy = sz * fx - sx * fz;
+ float uz = sx * fy - sy * fx;
+
+ float m[16] ;
+ m[0] = sx;
+ m[1] = ux;
+ m[2] = -fx;
+ m[3] = 0.0f;
+
+ m[4] = sy;
+ m[5] = uy;
+ m[6] = -fy;
+ m[7] = 0.0f;
+
+ m[8] = sz;
+ m[9] = uz;
+ m[10] = -fz;
+ m[11] = 0.0f;
+
+ m[12] = 0.0f;
+ m[13] = 0.0f;
+ m[14] = 0.0f;
+ m[15] = 1.0f;
+
+ glMultMatrixf(m);
+ glTranslatef(-eyeX, -eyeY, -eyeZ);
+}
+
+void init_scene(int width, int height)
+{
+ printGLString("Version", GL_VERSION);
+ printGLString("Vendor", GL_VENDOR);
+ printGLString("Renderer", GL_RENDERER);
+ printGLString("Extensions", GL_EXTENSIONS);
+ glDisable(GL_DITHER);
+ glEnable(GL_CULL_FACE);
+
+
+ float ratio = width / height;
+ glViewport(0, 0, width, height);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glFrustumf(-ratio, ratio, -1, 1, 1, 10);
+
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ gluLookAt(
+ 0, 0, 3, // eye
+ 0, 0, 0, // center
+ 0, 1, 0); // up
+
+ glEnable(GL_TEXTURE_2D);
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+}
+
+void create_texture()
+{
+ const unsigned int on = 0xff0000ff;
+ const unsigned int off = 0xffffffff;
+ const unsigned int pixels[] =
+ {
+ on, off, on, off, on, off, on, off,
+ off, on, off, on, off, on, off, on,
+ on, off, on, off, on, off, on, off,
+ off, on, off, on, off, on, off, on,
+ on, off, on, off, on, off, on, off,
+ off, on, off, on, off, on, off, on,
+ on, off, on, off, on, off, on, off,
+ off, on, off, on, off, on, off, on,
+ };
+ glGenTextures(1, &texture);
+ glBindTexture(GL_TEXTURE_2D, texture);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
+ glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+}
+
+extern "C" {
+ JNIEXPORT void JNICALL Java_com_android_gljni_GLJNILib_init(JNIEnv * env, jobject obj, jint width, jint height);
+ JNIEXPORT void JNICALL Java_com_android_gljni_GLJNILib_step(JNIEnv * env, jobject obj);
+};
+
+
+JNIEXPORT void JNICALL Java_com_android_gljni_GLJNILib_init(JNIEnv * env, jobject obj, jint width, jint height)
+{
+ init_scene(width, height);
+ create_texture();
+}
+
+JNIEXPORT void JNICALL Java_com_android_gljni_GLJNILib_step(JNIEnv * env, jobject obj)
+{
+ const GLfloat vertices[] = {
+ -1, -1, 0,
+ 1, -1, 0,
+ 1, 1, 0,
+ -1, 1, 0
+ };
+
+ const GLfixed texCoords[] = {
+ 0, 0,
+ FIXED_ONE, 0,
+ FIXED_ONE, FIXED_ONE,
+ 0, FIXED_ONE
+ };
+
+ const GLushort quadIndices[] = { 0, 1, 2, 0, 2, 3 };
+
+ glVertexPointer(3, GL_FLOAT, 0, vertices);
+ glTexCoordPointer(2, GL_FIXED, 0, texCoords);
+
+
+ int nelem = sizeof(quadIndices)/sizeof(quadIndices[0]);
+ static float grey;
+ grey += 0.01f;
+ if (grey > 1.0f) {
+ grey = 0.0f;
+ }
+ glClearColor(grey, grey, grey, 1.0f);
+ glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
+ glDrawElements(GL_TRIANGLES, nelem, GL_UNSIGNED_SHORT, quadIndices);
+}
+
diff --git a/opengl/tests/gl_jni/res/values/strings.xml b/opengl/tests/gl_jni/res/values/strings.xml
new file mode 100644
index 0000000..880f5c9
--- /dev/null
+++ b/opengl/tests/gl_jni/res/values/strings.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+**
+** Copyright 2006, 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.
+*/
+-->
+
+<!-- This file contains resource definitions for displayed strings, allowing
+ them to be changed based on the locale and options. -->
+
+<resources>
+ <!-- Simple strings. -->
+ <string name="gljni_activity">GLJNI</string>
+
+</resources>
+
diff --git a/opengl/tests/gl_jni/src/com/android/gljni/GLJNIActivity.java b/opengl/tests/gl_jni/src/com/android/gljni/GLJNIActivity.java
new file mode 100644
index 0000000..df1f957
--- /dev/null
+++ b/opengl/tests/gl_jni/src/com/android/gljni/GLJNIActivity.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2007 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.gljni;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.WindowManager;
+
+import java.io.File;
+
+
+public class GLJNIActivity extends Activity {
+
+ GLJNIView mView;
+
+ @Override protected void onCreate(Bundle icicle) {
+ super.onCreate(icicle);
+ mView = new GLJNIView(getApplication());
+ setContentView(mView);
+ }
+
+ @Override protected void onPause() {
+ super.onPause();
+ mView.onPause();
+ }
+
+ @Override protected void onResume() {
+ super.onResume();
+ mView.onResume();
+ }
+}
diff --git a/opengl/tests/gl_jni/src/com/android/gljni/GLJNILib.java b/opengl/tests/gl_jni/src/com/android/gljni/GLJNILib.java
new file mode 100644
index 0000000..8662725
--- /dev/null
+++ b/opengl/tests/gl_jni/src/com/android/gljni/GLJNILib.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2007 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.gljni;
+
+// Wrapper for native library
+
+public class GLJNILib {
+
+ static {
+ System.loadLibrary("gljni");
+ }
+
+ /**
+ * @param width the current view width
+ * @param height the current view height
+ */
+ public static native void init(int width, int height);
+ public static native void step();
+}
diff --git a/opengl/tests/gl_jni/src/com/android/gljni/GLJNIView.java b/opengl/tests/gl_jni/src/com/android/gljni/GLJNIView.java
new file mode 100644
index 0000000..9ea1059
--- /dev/null
+++ b/opengl/tests/gl_jni/src/com/android/gljni/GLJNIView.java
@@ -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.
+ */
+
+package com.android.gljni;
+/*
+ * Copyright (C) 2008 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.
+ */
+
+
+import android.content.Context;
+import android.opengl.GLSurfaceView;
+import android.util.AttributeSet;
+import android.util.Log;
+import android.view.KeyEvent;
+import android.view.MotionEvent;
+
+import javax.microedition.khronos.egl.EGL10;
+import javax.microedition.khronos.egl.EGLConfig;
+import javax.microedition.khronos.opengles.GL10;
+/**
+ * An implementation of SurfaceView that uses the dedicated surface for
+ * displaying an OpenGL animation. This allows the animation to run in a
+ * separate thread, without requiring that it be driven by the update mechanism
+ * of the view hierarchy.
+ *
+ * The application-specific rendering code is delegated to a GLView.Renderer
+ * instance.
+ */
+class GLJNIView extends GLSurfaceView {
+ GLJNIView(Context context) {
+ super(context);
+ init();
+ }
+
+ public GLJNIView(Context context, AttributeSet attrs) {
+ super(context, attrs);
+ init();
+ }
+
+ private void init() {
+ setRenderer(new Renderer());
+ }
+
+ private class Renderer implements GLSurfaceView.Renderer {
+ private static final String TAG = "Renderer";
+ public void onDrawFrame(GL10 gl) {
+ GLJNILib.step();
+ }
+
+ public void onSurfaceChanged(GL10 gl, int width, int height) {
+ GLJNILib.init(width, height);
+ }
+
+ public void onSurfaceCreated(GL10 gl, EGLConfig config) {
+ // Do nothing.
+ }
+ }
+}
+