Import san-angeles sample from Android NDK r9

AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+      package="com.example.SanAngeles"
+      android:versionCode="1"
+      android:versionName="1.0">
+    <application android:label="@string/app_name">
+        <activity android:name=".DemoActivity"
+                  android:label="@string/app_name">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+    <uses-sdk android:minSdkVersion="4" />
+</manifest> 

default.properties

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+# This file is automatically generated by Android Tools.
+# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
+# 
+# This file must be checked in Version Control Systems.
+# 
+# To customize properties used by the Ant build system use,
+# "build.properties", and override values to adapt the script to your
+# project structure.
+
+# Project target.
+target=android-4

jni/Android.mk

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+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := sanangeles
+
+LOCAL_CFLAGS := -DANDROID_NDK \
+                -DDISABLE_IMPORTGL
+
+LOCAL_SRC_FILES := \
+    importgl.c \
+    demo.c \
+    app-android.c \
+
+LOCAL_LDLIBS := -lGLESv1_CM -ldl -llog
+
+include $(BUILD_SHARED_LIBRARY)

jni/README.txt

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+------------------------------------------------------------------------
+San Angeles Observation OpenGL ES version example
+Copyright 2004-2005 Jetro Lauha
+Web: http://iki.fi/jetro/
+See file license.txt for licensing information.
+------------------------------------------------------------------------
+
+This is an OpenGL ES port of the small self-running demonstration
+called "San Angeles Observation", which was first presented in the
+Assembly'2004 event. It won the first place in the 4 KB intro
+competition category.
+
+The demonstration features a sightseeing of a futuristic city
+having many different kind of buildings and items. Everything is
+flat shaded with three different lights.
+
+The original version was made for desktop with OpenGL. It was
+naturally heavily size optimized in order to fit it in the size
+limit. For this OpenGL ES version example much of the code is
+cleaned up and the sound is removed. Also detail level is lowered,
+although it still contains over 60000 faces.
+
+The Win32 (2000/XP) binary package of original version is
+available from this address: http://jet.ro/files/angeles.zip
+
+First version of this OpenGL ES port was submitted to the Khronos
+OpenGL ES Coding Challenge held in 2004-2005.
+
+As a code example, this source shows the following:
+  * How to create a minimal and portable ad hoc framework
+    for small testing/demonstration programs. This framework
+    compiles for both desktop and PocketPC Win32 environment,
+    and a separate source is included for Linux with X11.
+  * How to dynamically find and use the OpenGL ES DLL or
+    shared object, so that the library is not needed at
+    the compile/link stage.
+  * How to use the basic features of OpenGL ES 1.0/1.1
+    Common Lite, such as vertex arrays, color arrays and
+    lighting.
+  * How to create a self contained small demonstration
+    application with objects generated using procedural
+    algorithms.
+
+As the original version was optimized for size instead of
+performance, that holds true for this OpenGL ES version as
+well. Thus the performance could be significantly increased,
+for example by changing the code to use glDrawElements
+instead of glDrawArrays. The code uses only OpenGL ES 1.0
+Common Lite -level function calls without any extensions.
+
+The reference OpenGL ES implementations used for this application:
+  * Hybrid's OpenGL ES API Implementation (Gerbera) version 2.0.4
+    Prebuilt Win32 PC executable: SanOGLES-Gerbera.exe
+  * PowerVR MBX SDK, OpenGL ES Windows PC Emulation version 1.04.14.0170
+    Prebuilt Win32 PC executable: SanOGLES-PVRSDK.exe
+
+Note that DISABLE_IMPORTGL preprocessor macro can be used
+to specify not to use dynamic runtime binding of the library.
+You also need to define preprocessor macro PVRSDK to compile
+the source with PowerVR OpenGL ES SDK.
+
+The demo application is briefly tested with a few other OpenGL ES
+implementations as well (e.g. Vincent, GLESonGL on Linux, Dell
+Axim X50v). Most of these other implementations rendered the demo
+erroneously in some aspect. This may indicate that the demo source
+could still have some work to do with compatibility and correct
+API usage, although the non-conforming implementations are most
+probably unfinished as well.
+
+Thanks and Acknowledgements:
+
+* Toni L�nnberg (!Cube) created the music for original version, which
+  is not featured in this OpenGL ES port.
+* Sara Kapli (st Rana) for additional camera work.
+* Paul Bourke for information about the supershapes.
+
+------------------------------------------------------------------------

jni/app-android.c

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+/* San Angeles Observation OpenGL ES version example
+ * Copyright 2009 The Android Open Source Project
+ * All rights reserved.
+ *
+ * This source is free software; you can redistribute it and/or
+ * modify it under the terms of EITHER:
+ *   (1) The GNU Lesser General Public License as published by the Free
+ *       Software Foundation; either version 2.1 of the License, or (at
+ *       your option) any later version. The text of the GNU Lesser
+ *       General Public License is included with this source in the
+ *       file LICENSE-LGPL.txt.
+ *   (2) The BSD-style license that is included with this source in
+ *       the file LICENSE-BSD.txt.
+ *
+ * This source is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the files
+ * LICENSE-LGPL.txt and LICENSE-BSD.txt for more details.
+ */
+#include <jni.h>
+#include <sys/time.h>
+#include <time.h>
+#include <android/log.h>
+#include <stdint.h>
+#include "importgl.h"
+#include "app.h"
+
+int   gAppAlive   = 1;
+
+static int  sWindowWidth  = 320;
+static int  sWindowHeight = 480;
+static int  sDemoStopped  = 0;
+static long sTimeOffset   = 0;
+static int  sTimeOffsetInit = 0;
+static long sTimeStopped  = 0;
+
+static long
+_getTime(void)
+{
+    struct timeval  now;
+
+    gettimeofday(&now, NULL);
+    return (long)(now.tv_sec*1000 + now.tv_usec/1000);
+}
+
+/* Call to initialize the graphics state */
+void
+Java_com_example_SanAngeles_DemoRenderer_nativeInit( JNIEnv*  env )
+{
+    importGLInit();
+    appInit();
+    gAppAlive  = 1;
+}
+
+void
+Java_com_example_SanAngeles_DemoRenderer_nativeResize( JNIEnv*  env, jobject  thiz, jint w, jint h )
+{
+    sWindowWidth  = w;
+    sWindowHeight = h;
+    __android_log_print(ANDROID_LOG_INFO, "SanAngeles", "resize w=%d h=%d", w, h);
+}
+
+/* Call to finalize the graphics state */
+void
+Java_com_example_SanAngeles_DemoRenderer_nativeDone( JNIEnv*  env )
+{
+    appDeinit();
+    importGLDeinit();
+}
+
+/* This is called to indicate to the render loop that it should
+ * stop as soon as possible.
+ */
+
+void _pause()
+{
+  /* we paused the animation, so store the current
+   * time in sTimeStopped for future nativeRender calls */
+    sDemoStopped = 1;
+    sTimeStopped = _getTime();
+}
+
+void _resume()
+{
+  /* we resumed the animation, so adjust the time offset
+   * to take care of the pause interval. */
+    sDemoStopped = 0;
+    sTimeOffset -= _getTime() - sTimeStopped;
+}
+
+
+void
+Java_com_example_SanAngeles_DemoGLSurfaceView_nativeTogglePauseResume( JNIEnv*  env )
+{
+    sDemoStopped = !sDemoStopped;
+    if (sDemoStopped)
+        _pause();
+    else
+        _resume();
+}
+
+void
+Java_com_example_SanAngeles_DemoGLSurfaceView_nativePause( JNIEnv*  env )
+{
+    _pause();
+}
+
+void
+Java_com_example_SanAngeles_DemoGLSurfaceView_nativeResume( JNIEnv*  env )
+{
+    _resume();
+}
+
+/* Call to render the next GL frame */
+void
+Java_com_example_SanAngeles_DemoRenderer_nativeRender( JNIEnv*  env )
+{
+    long   curTime;
+
+    /* NOTE: if sDemoStopped is TRUE, then we re-render the same frame
+     *       on each iteration.
+     */
+    if (sDemoStopped) {
+        curTime = sTimeStopped + sTimeOffset;
+    } else {
+        curTime = _getTime() + sTimeOffset;
+        if (sTimeOffsetInit == 0) {
+            sTimeOffsetInit = 1;
+            sTimeOffset     = -curTime;
+            curTime         = 0;
+        }
+    }
+
+    //__android_log_print(ANDROID_LOG_INFO, "SanAngeles", "curTime=%ld", curTime);
+
+    appRender(curTime, sWindowWidth, sWindowHeight);
+}