├── .gitignore
├── README.md
├── app
    ├── build.gradle
    ├── lint.xml
    └── src
    │   └── main
    │       ├── AndroidManifest.xml
    │       ├── java
    │           └── org
    │           │   └── wysaid
    │           │       └── ndkopenglbackdraw
    │           │           ├── GLHelpFunctions.java
    │           │           └── MainActivity.java
    │       ├── jni
    │           ├── Android.mk
    │           ├── Application.mk
    │           ├── NDKOpenGLBackDraw.c
    │           └── org_wysaid_ndkopenglbackdraw_GLHelpFunctions.h
    │       └── res
    │           ├── drawable-nodpi
    │               └── ic_launcher.png
    │           ├── layout
    │               └── activity_main.xml
    │           ├── menu
    │               └── main.xml
    │           ├── values-sw600dp
    │               └── dimens.xml
    │           ├── values-sw720dp-land
    │               └── dimens.xml
    │           ├── values-v11
    │               └── styles.xml
    │           ├── values-v14
    │               └── styles.xml
    │           └── values
    │               ├── dimens.xml
    │               ├── strings.xml
    │               └── styles.xml
├── build.gradle
├── gradle.properties
├── gradle
    └── wrapper
    │   ├── gradle-wrapper.jar
    │   └── gradle-wrapper.properties
├── gradlew
├── gradlew.bat
├── import-summary.txt
├── screenshot.jpg
└── settings.gradle


/.gitignore:
--------------------------------------------------------------------------------
 1 | .gradle
 2 | /local.properties
 3 | /.idea/workspace.xml
 4 | /.idea/libraries
 5 | .DS_Store
 6 | build/
 7 | /captures
 8 | .idea/
 9 | .svn/
10 | *iml
11 | .idea/
12 | local/
13 | libs/
14 | bin/


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # NDKOpenGLOffscreenRendering
2 | 简单demo， Android下使用NDK(C++)+GLES2.0进行后台绘图,保存到bitmap并交给java层处理. 在安卓下使用PBuffer创建context并实现在ndk下后台处理
3 | ![https://raw.githubusercontent.com/wysaid/NDKOpenGLOffscreenRendering/master/screenshot.jpg](https://raw.githubusercontent.com/wysaid/NDKOpenGLOffscreenRendering/master/screenshot.jpg)
4 | 


--------------------------------------------------------------------------------
/app/build.gradle:
--------------------------------------------------------------------------------
 1 | apply plugin: 'com.android.application'
 2 | 
 3 | android {
 4 |     compileSdkVersion 22
 5 |     buildToolsVersion "22.0.1"
 6 | 
 7 |     defaultConfig {
 8 |         applicationId "org.wysaid.ndkopenglbackdraw"
 9 |         minSdkVersion 8
10 |         targetSdkVersion 22
11 | 
12 |         ndk {
13 |             moduleName "NDKOpenGLBackDraw"
14 |             abiFilters "armeabi"
15 |             ldLibs "log", "android", "EGL", "GLESv2", "jnigraphics"
16 |         }
17 |     }
18 | 
19 |     buildTypes {
20 |         release {
21 |             minifyEnabled false
22 |             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
23 |         }
24 |     }
25 | }
26 | 


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/app/lint.xml:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="utf-8"?>
2 | <lint>
3 | </lint>


--------------------------------------------------------------------------------
/app/src/main/AndroidManifest.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     package="org.wysaid.ndkopenglbackdraw"
 4 |     android:versionCode="1"
 5 |     android:versionName="1.0" >
 6 | 
 7 |     <uses-sdk
 8 |         android:minSdkVersion="8"
 9 |         android:targetSdkVersion="20" />
10 | 
11 |     <application
12 |         android:allowBackup="true"
13 |         android:icon="@drawable/ic_launcher"
14 |         android:label="@string/app_name"
15 |         android:theme="@style/AppTheme"
16 |         android:hardwareAccelerated="true" >
17 |         <activity
18 |             android:name="org.wysaid.ndkopenglbackdraw.MainActivity"
19 |             android:label="@string/app_name" 
20 |             android:hardwareAccelerated="true" >
21 |             <intent-filter>
22 |                 <action android:name="android.intent.action.MAIN" />
23 | 
24 |                 <category android:name="android.intent.category.LAUNCHER" />
25 |             </intent-filter>
26 |         </activity>
27 |     </application>
28 | 
29 | </manifest>
30 | 


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/app/src/main/java/org/wysaid/ndkopenglbackdraw/GLHelpFunctions.java:
--------------------------------------------------------------------------------
 1 | package org.wysaid.ndkopenglbackdraw;
 2 | 
 3 | import javax.microedition.khronos.egl.EGL10;
 4 | import javax.microedition.khronos.egl.EGLConfig;
 5 | import javax.microedition.khronos.egl.EGLContext;
 6 | import javax.microedition.khronos.egl.EGLDisplay;
 7 | import javax.microedition.khronos.opengles.GL10;
 8 | 
 9 | import android.annotation.SuppressLint;
10 | import android.graphics.Bitmap;
11 | import android.opengl.EGL14;
12 | import android.util.Log;
13 | 
14 | public class GLHelpFunctions {
15 | 
16 | 	public static native void getGLBackDrawImage(Bitmap bm);
17 | 
18 | 	// use GLES2.0.
19 | 	static int EGL_CONTEXT_CLIENT_VERSION = 0x3098;
20 | 	static int[] attrib_list = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL10.EGL_NONE };
21 | 	static private int[] version = new int[2];
22 | 	static EGLConfig[] configs = new EGLConfig[1];
23 | 	static int[] num_config = new int[1];
24 | 
25 | 	@SuppressLint("InlinedApi") static int[] configSpec = { EGL10.EGL_SURFACE_TYPE, EGL10.EGL_PBUFFER_BIT,
26 | 			EGL10.EGL_RENDERABLE_TYPE, EGL14.EGL_OPENGL_ES2_BIT,
27 | 			EGL10.EGL_RED_SIZE, 8, EGL10.EGL_GREEN_SIZE, 8,
28 | 			EGL10.EGL_BLUE_SIZE, 8, EGL10.EGL_ALPHA_SIZE, 8, EGL10.EGL_NONE };
29 | 	// eglCreatePbufferSurface used this config
30 | 	static int attribListPbuffer[] = {
31 | 			// The NDK code would never draw to Pbuffer, so it's not neccessary to
32 | 			// match anything.
33 | 			EGL10.EGL_WIDTH, 32, EGL10.EGL_HEIGHT, 32, EGL10.EGL_NONE };
34 | 	static EGL10 mEgl;
35 | 	static GL10 gl;
36 | 	static javax.microedition.khronos.egl.EGLSurface mEglPBSurface;
37 | 	static EGLContext mEglContext;
38 | 	static EGLConfig mEglConfig;
39 | 	static EGLDisplay mEglDisplay;
40 | 
41 | 	static public void initEGL() {
42 | 		mEgl = (EGL10) EGLContext.getEGL();
43 | 		mEglDisplay = mEgl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);
44 | 		mEgl.eglInitialize(mEglDisplay, version);
45 | 		mEgl.eglChooseConfig(mEglDisplay, configSpec, configs, 1, num_config);
46 | 		mEglConfig = configs[0];
47 | 		mEglContext = mEgl.eglCreateContext(mEglDisplay, mEglConfig,
48 | 				EGL10.EGL_NO_CONTEXT, attrib_list);
49 | 		if (mEglContext == EGL10.EGL_NO_CONTEXT) {
50 | 			Log.d("ERROR:", "eglCreateContext Failed!");
51 | 		}
52 | 		mEglPBSurface = mEgl.eglCreatePbufferSurface(mEglDisplay, mEglConfig,
53 | 				attribListPbuffer);
54 | 		if (mEglPBSurface == EGL10.EGL_NO_SURFACE) {			
55 | 				Log.d("ERROR:", "eglCreatePbufferSurface Failed!");
56 | 		}
57 | 
58 | 		if (!mEgl.eglMakeCurrent(mEglDisplay, mEglPBSurface, mEglPBSurface, mEglContext)) {
59 | 			Log.d("ERROR:", "eglMakeCurrent failed:" + mEgl.eglGetError());
60 | 		}
61 | 		// You can do some works using OpenGL with java code. But this demo would do that within NDK.
62 | 		gl = (GL10) mEglContext.getGL();
63 | 	}
64 | 	
65 | 	static public void enableEGL() {
66 | 		if (!mEgl.eglMakeCurrent(mEglDisplay, mEglPBSurface, mEglPBSurface,	mEglContext))
67 | 		{
68 | 			Log.d("ERROR:", "eglMakeCurrent failed:" + mEgl.eglGetError());
69 | 		}
70 | 	}
71 | }
72 | 


--------------------------------------------------------------------------------
/app/src/main/java/org/wysaid/ndkopenglbackdraw/MainActivity.java:
--------------------------------------------------------------------------------
 1 | package org.wysaid.ndkopenglbackdraw;
 2 | 
 3 | import android.graphics.Canvas;
 4 | import android.graphics.drawable.BitmapDrawable;
 5 | import android.os.Bundle;
 6 | import android.annotation.SuppressLint;
 7 | import android.app.Activity;
 8 | import android.graphics.Bitmap;
 9 | import android.view.Menu;
10 | import android.view.View;
11 | import android.widget.Button;
12 | import android.widget.ImageView;
13 | import android.widget.LinearLayout;
14 | 
15 | public class MainActivity extends Activity {
16 | 	static
17 | 	{
18 | 		System.loadLibrary("NDKOpenGLBackDraw");
19 | 	}
20 | 	
21 | 	@SuppressLint("NewApi")
22 | 	@Override
23 | 	protected void onCreate(Bundle savedInstanceState) {
24 | 		
25 | 		super.onCreate(savedInstanceState);
26 | 		setContentView(R.layout.activity_main);
27 | 		dispalyLayout = (LinearLayout) findViewById(R.id.displayLayout);
28 | 		displayView = (ImageView) findViewById(R.id.imageView1);
29 | 		button = (Button) findViewById(R.id.button1);
30 | 		button.setOnClickListener(clickListener);
31 | 		GLHelpFunctions.initEGL();
32 | 		bitmap = Bitmap.createBitmap(800, 800, Bitmap.Config.ARGB_8888);
33 | 
34 | 		Bitmap displayBitmap = ((BitmapDrawable)displayView.getDrawable()).getBitmap();
35 | 		Canvas canvas = new Canvas(bitmap);
36 | 		for(int i = 0; i < bitmap.getHeight(); i += displayBitmap.getHeight()) {
37 | 			for(int j = 0; j < bitmap.getWidth(); j += displayBitmap.getWidth()) {
38 | 				canvas.drawBitmap(displayBitmap, j, i, null);
39 | 			}
40 | 		}
41 | 	}
42 | 
43 | 	@Override
44 | 	public boolean onCreateOptionsMenu(Menu menu) {
45 | 		// Inflate the menu; this adds items to the action bar if it is present.
46 | 		getMenuInflater().inflate(R.menu.main, menu);
47 | 		return true;
48 | 	}
49 | 	
50 | 	android.view.View.OnClickListener clickListener =
51 | 			new android.view.View.OnClickListener() {		
52 | 		@Override
53 | 		public void onClick(View view) {
54 | 			// TODO Auto-generated method stub
55 | 			GLHelpFunctions.enableEGL();
56 | 			GLHelpFunctions.getGLBackDrawImage(bitmap);
57 | 			displayView.setImageBitmap(bitmap);
58 | 		}
59 | 	};
60 | 	
61 | 	ImageView displayView;
62 | 	LinearLayout dispalyLayout;
63 | 	Button button;
64 | 	Bitmap bitmap;
65 | }
66 | 


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/app/src/main/jni/Android.mk:
--------------------------------------------------------------------------------
 1 | LOCAL_PATH := $(call my-dir)
 2 | 
 3 | include $(CLEAR_VARS)
 4 | 
 5 | LOCAL_MODULE    := NDKOpenGLBackDraw
 6 | LOCAL_SRC_FILES := NDKOpenGLBackDraw.c
 7 | 
 8 | LOCAL_LDLIBS := -llog -lGLESv2 -landroid -ljnigraphics
 9 | 
10 | include $(BUILD_SHARED_LIBRARY)
11 | 


--------------------------------------------------------------------------------
/app/src/main/jni/Application.mk:
--------------------------------------------------------------------------------
1 | APP_STL := gnustl_static


--------------------------------------------------------------------------------
/app/src/main/jni/NDKOpenGLBackDraw.c:
--------------------------------------------------------------------------------
  1 | #include <jni.h>
  2 | #include <android/log.h>
  3 | #include <android/bitmap.h>
  4 | #include <GLES2/gl2.h>
  5 | #include <GLES2/gl2ext.h>
  6 | 
  7 | #ifndef LOG_TAG
  8 | #define LOG_TAG "NDKOpenGLBackDraw"
  9 | #endif
 10 | 
 11 | #define LOG_INFO(...)  __android_log_print(ANDROID_LOG_INFO,LOG_TAG,__VA_ARGS__)
 12 | #define LOG_ERROR(...)  __android_log_print(ANDROID_LOG_ERROR,LOG_TAG,__VA_ARGS__)
 13 | #define SHADER_STRING(...) #__VA_ARGS__
 14 | 
 15 | void printGLString(const char* name, GLenum em)
 16 | {
 17 |     const char *s = (const char*)glGetString(em);
 18 |     LOG_INFO("GL_INFO %s = %s\n", name, s);
 19 | }
 20 | 
 21 | void checkGLError(const char* op)
 22 | {
 23 |     GLint error;
 24 |     for (error = glGetError(); error; error = glGetError())
 25 |     {
 26 |         LOG_INFO("after %s() glError (0x%x)\n", op, error);
 27 |     }
 28 | }
 29 | 
 30 | const char* const g_defaultVertexShaderString = SHADER_STRING
 31 | (
 32 | attribute vec2 vPosition;
 33 | varying vec2 textureCoordinate;
 34 | void main()
 35 | {
 36 |    gl_Position = vec4(vPosition, 0.0, 1.0);
 37 |    textureCoordinate = (vPosition.xy + 1.0) / 2.0;
 38 | }
 39 | );
 40 | 
 41 | const char* const g_defaultFragmentShaderString = SHADER_STRING
 42 | (
 43 | precision mediump float;
 44 | varying vec2 textureCoordinate;
 45 | uniform sampler2D myTexture;
 46 | void main()
 47 | {
 48 |     vec4 textureColor = texture2D(myTexture, textureCoordinate);
 49 |     textureColor.rb += textureCoordinate.xy;
 50 |     gl_FragColor = textureColor;
 51 | }
 52 | );
 53 | 
 54 | const GLfloat g_vertices[] =
 55 | {
 56 | 	-1.0f, 1.0f,
 57 | 	1.0f, 1.0f,
 58 | 	-1.0f, -1.0f,
 59 | 	1.0f, -1.0f
 60 | };
 61 | 
 62 | void runBackDraw(char* row, int w, int h)
 63 | {
 64 |     GLuint texture, renderBuffer, frameBuffer;
 65 |     printGLString("Version", GL_VERSION);
 66 |     printGLString("Vendor", GL_VENDOR);
 67 |     printGLString("Renderer", GL_RENDERER);
 68 | 
 69 |     glActiveTexture(GL_TEXTURE0);
 70 |     glGenTextures(1, &texture);
 71 |     LOG_INFO("Input Image Texture id %d\n", texture);
 72 |     glBindTexture(GL_TEXTURE_2D, texture);
 73 |     glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
 74 |     glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, row);
 75 |     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 76 |     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 77 |     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
 78 |     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 79 | 
 80 |     glGenFramebuffers(1, &frameBuffer);
 81 |     glGenRenderbuffers(1, &renderBuffer);
 82 |     glBindFramebuffer(GL_FRAMEBUFFER, frameBuffer);
 83 |     glBindRenderbuffer(GL_RENDERBUFFER, renderBuffer);
 84 |     glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA4, w, h);
 85 |     glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
 86 |         GL_RENDERBUFFER, renderBuffer);
 87 | 
 88 |     if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE)
 89 |     {
 90 |         LOG_ERROR("Image Handler initImageFBO failed!\n");        
 91 |     }
 92 |     else
 93 |     {
 94 |         glViewport(0, 0, w, h);
 95 | 
 96 |         ////////////////////////////////////
 97 |         GLuint vsh, fsh, program;
 98 |         vsh = glCreateShader(GL_VERTEX_SHADER);
 99 |         fsh = glCreateShader(GL_FRAGMENT_SHADER);
100 |         program = glCreateProgram();
101 |         glShaderSource(vsh, 1, (const GLchar**)&g_defaultVertexShaderString, NULL);
102 |         glShaderSource(fsh, 1, (const GLchar**)&g_defaultFragmentShaderString, NULL);
103 |         glCompileShader(vsh);
104 |         glCompileShader(fsh);
105 |         glAttachShader(program, vsh);
106 |         glAttachShader(program, fsh);
107 |         glLinkProgram(program);
108 |         glDeleteShader(vsh);
109 |         glDeleteShader(fsh);
110 |         glUseProgram(program);
111 |         GLuint vPosition = glGetAttribLocation(program, "vPosition");
112 |         checkGLError("glGetAttribLocation");
113 |         LOG_INFO("glGetAttribLocation(\"vPosition\") = %d\n", vPosition);
114 |         glVertexAttribPointer(vPosition, 2, GL_FLOAT, GL_FALSE, 0, g_vertices);
115 |         glEnableVertexAttribArray(vPosition);
116 |         glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
117 | 
118 |         glPixelStorei(GL_PACK_ALIGNMENT, 1);
119 |         glReadPixels(0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, row);
120 |     }
121 | 
122 |     glDeleteTextures(1, &texture);
123 |     glDeleteFramebuffers(1, &frameBuffer);
124 |     glDeleteRenderbuffers(1, &renderBuffer);
125 | }
126 | 
127 | 
128 | JNIEXPORT void JNICALL Java_org_wysaid_ndkopenglbackdraw_GLHelpFunctions_getGLBackDrawImage(JNIEnv *env, jclass cls, jobject bitmap)
129 | {
130 |     AndroidBitmapInfo info;
131 |     int w, h, ret;
132 |     char* row;
133 | 
134 |     if ((ret = AndroidBitmap_getInfo(env, bitmap, &info)) < 0)
135 |     {
136 |         LOG_ERROR("AndroidBitmap_getInfo() failed ! error=%d", ret);
137 |         return;
138 |     }
139 | 
140 |     LOG_INFO("color image :: width is %d; height is %d; stride is %d; format is %d;flags is %d", info.width, info.height, info.stride, info.format, info.flags);
141 | 
142 |     if (info.format != ANDROID_BITMAP_FORMAT_RGBA_8888)
143 |     {
144 |         LOG_ERROR("Bitmap format is not RGBA_8888 !");
145 |         return;
146 |     }
147 | 
148 |     w = info.width;
149 |     h = info.height;
150 |     ret = AndroidBitmap_lockPixels(env, bitmap, (void**) &row);
151 | 
152 |     if (ret < 0)
153 |     {
154 |         LOG_ERROR("AndroidBitmap_lockPixels() failed ! error=%d", ret);
155 |         return ;
156 |     }
157 | 
158 |     runBackDraw(row, w, h);
159 |     LOG_INFO("unlocking pixels");
160 |     AndroidBitmap_unlockPixels(env, bitmap);
161 | }


--------------------------------------------------------------------------------
/app/src/main/jni/org_wysaid_ndkopenglbackdraw_GLHelpFunctions.h:
--------------------------------------------------------------------------------
 1 | /* DO NOT EDIT THIS FILE - it is machine generated */
 2 | #include <jni.h>
 3 | /* Header for class org_wysaid_ndkopenglbackdraw_GLHelpFunctions */
 4 | 
 5 | #ifndef _Included_org_wysaid_ndkopenglbackdraw_GLHelpFunctions
 6 | #define _Included_org_wysaid_ndkopenglbackdraw_GLHelpFunctions
 7 | #ifdef __cplusplus
 8 | extern "C" {
 9 | #endif
10 | /*
11 |  * Class:     org_wysaid_ndkopenglbackdraw_GLHelpFunctions
12 |  * Method:    getGLBackDrawImage
13 |  * Signature: (Landroid/graphics/Bitmap;)V
14 |  */
15 | JNIEXPORT void JNICALL Java_org_wysaid_ndkopenglbackdraw_GLHelpFunctions_getGLBackDrawImage
16 |   (JNIEnv *, jclass, jobject);
17 | 
18 | #ifdef __cplusplus
19 | }
20 | #endif
21 | #endif
22 | 


--------------------------------------------------------------------------------
/app/src/main/res/drawable-nodpi/ic_launcher.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/wysaid/NDKOpenGLOffscreenRendering/092ca356598974e6fb70ce342e812629a9cf1f06/app/src/main/res/drawable-nodpi/ic_launcher.png


--------------------------------------------------------------------------------
/app/src/main/res/layout/activity_main.xml:
--------------------------------------------------------------------------------
 1 | <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 2 |     xmlns:tools="http://schemas.android.com/tools"
 3 |     android:layout_width="match_parent"
 4 |     android:layout_height="match_parent"
 5 |     android:paddingBottom="@dimen/activity_vertical_margin"
 6 |     android:paddingLeft="@dimen/activity_horizontal_margin"
 7 |     android:paddingRight="@dimen/activity_horizontal_margin"
 8 |     android:paddingTop="@dimen/activity_vertical_margin"
 9 |     tools:context=".MainActivity" >
10 | 
11 |     <LinearLayout
12 |         android:id="@+id/displayLayout"
13 |         android:layout_width="wrap_content"
14 |         android:layout_height="wrap_content"
15 |         android:layout_alignParentLeft="true"
16 |         android:layout_alignParentTop="true"
17 |         android:orientation="vertical" >
18 | 
19 |         <ImageView
20 |             android:id="@+id/imageView1"
21 |             android:layout_width="276dp"
22 |             android:layout_height="301dp"
23 |             android:src="@drawable/ic_launcher" />
24 | 
25 |         <Button
26 |             android:id="@+id/button1"
27 |             android:layout_width="match_parent"
28 |             android:layout_height="wrap_content"
29 |             android:text="Click to run OpenGL BackDraw" />
30 | 
31 |     </LinearLayout>
32 | 
33 | </RelativeLayout>
34 | 


--------------------------------------------------------------------------------
/app/src/main/res/menu/main.xml:
--------------------------------------------------------------------------------
 1 | <menu xmlns:android="http://schemas.android.com/apk/res/android" >
 2 | 
 3 |     <item
 4 |         android:id="@+id/action_settings"
 5 |         android:orderInCategory="100"
 6 |         android:showAsAction="never"
 7 |         android:title="@string/action_settings"/>
 8 | 
 9 | </menu>
10 | 


--------------------------------------------------------------------------------
/app/src/main/res/values-sw600dp/dimens.xml:
--------------------------------------------------------------------------------
1 | <resources>
2 | 
3 |     <!--
4 |          Customize dimensions originally defined in res/values/dimens.xml (such as
5 |          screen margins) for sw600dp devices (e.g. 7" tablets) here.
6 |     -->
7 | 
8 | </resources>
9 | 


--------------------------------------------------------------------------------
/app/src/main/res/values-sw720dp-land/dimens.xml:
--------------------------------------------------------------------------------
 1 | <resources>
 2 | 
 3 |     <!--
 4 |          Customize dimensions originally defined in res/values/dimens.xml (such as
 5 |          screen margins) for sw720dp devices (e.g. 10" tablets) in landscape here.
 6 |     -->
 7 |     <dimen name="activity_horizontal_margin">128dp</dimen>
 8 | 
 9 | </resources>
10 | 


--------------------------------------------------------------------------------
/app/src/main/res/values-v11/styles.xml:
--------------------------------------------------------------------------------
 1 | <resources>
 2 | 
 3 |     <!--
 4 |         Base application theme for API 11+. This theme completely replaces
 5 |         AppBaseTheme from res/values/styles.xml on API 11+ devices.
 6 |     -->
 7 |     <style name="AppBaseTheme" parent="android:Theme.Holo.Light">
 8 |         <!-- API 11 theme customizations can go here. -->
 9 |     </style>
10 | 
11 | </resources>
12 | 


--------------------------------------------------------------------------------
/app/src/main/res/values-v14/styles.xml:
--------------------------------------------------------------------------------
 1 | <resources>
 2 | 
 3 |     <!--
 4 |         Base application theme for API 14+. This theme completely replaces
 5 |         AppBaseTheme from BOTH res/values/styles.xml and
 6 |         res/values-v11/styles.xml on API 14+ devices.
 7 |     -->
 8 |     <style name="AppBaseTheme" parent="android:Theme.Holo.Light.DarkActionBar">
 9 |         <!-- API 14 theme customizations can go here. -->
10 |     </style>
11 | 
12 | </resources>
13 | 


--------------------------------------------------------------------------------
/app/src/main/res/values/dimens.xml:
--------------------------------------------------------------------------------
1 | <resources>
2 | 
3 |     <!-- Default screen margins, per the Android Design guidelines. -->
4 |     <dimen name="activity_horizontal_margin">16dp</dimen>
5 |     <dimen name="activity_vertical_margin">16dp</dimen>
6 | 
7 | </resources>
8 | 


--------------------------------------------------------------------------------
/app/src/main/res/values/strings.xml:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="utf-8"?>
2 | <resources>
3 | 
4 |     <string name="app_name">NDKOpenGLBackDraw</string>
5 |     <string name="action_settings">Settings</string>
6 |     <string name="hello_world">Hello world!</string>
7 | 
8 | </resources>
9 | 


--------------------------------------------------------------------------------
/app/src/main/res/values/styles.xml:
--------------------------------------------------------------------------------
 1 | <resources>
 2 | 
 3 |     <!--
 4 |         Base application theme, dependent on API level. This theme is replaced
 5 |         by AppBaseTheme from res/values-vXX/styles.xml on newer devices.
 6 |     -->
 7 |     <style name="AppBaseTheme" parent="android:Theme.Light">
 8 |         <!--
 9 |             Theme customizations available in newer API levels can go in
10 |             res/values-vXX/styles.xml, while customizations related to
11 |             backward-compatibility can go here.
12 |         -->
13 |     </style>
14 | 
15 |     <!-- Application theme. -->
16 |     <style name="AppTheme" parent="AppBaseTheme">
17 |         <!-- All customizations that are NOT specific to a particular API-level can go here. -->
18 |     </style>
19 | 
20 | </resources>
21 | 


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/build.gradle:
--------------------------------------------------------------------------------
 1 | // Top-level build file where you can add configuration options common to all sub-projects/modules.
 2 | buildscript {
 3 |     repositories {
 4 |         jcenter()
 5 |     }
 6 |     dependencies {
 7 |         classpath 'com.android.tools.build:gradle:1.5.0'
 8 |     }
 9 | }
10 | 
11 | allprojects {
12 |     repositories {
13 |         jcenter()
14 |     }
15 | }
16 | 


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/gradle.properties:
--------------------------------------------------------------------------------
 1 | # Project-wide Gradle settings.
 2 | 
 3 | # IDE (e.g. Android Studio) users:
 4 | # Gradle settings configured through the IDE *will override*
 5 | # any settings specified in this file.
 6 | 
 7 | # For more details on how to configure your build environment visit
 8 | # http://www.gradle.org/docs/current/userguide/build_environment.html
 9 | 
10 | # Specifies the JVM arguments used for the daemon process.
11 | # The setting is particularly useful for tweaking memory settings.
12 | # Default value: -Xmx10248m -XX:MaxPermSize=256m
13 | # org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
14 | 
15 | # When configured, Gradle will run in incubating parallel mode.
16 | # This option should only be used with decoupled projects. More details, visit
17 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
18 | # org.gradle.parallel=true
19 | android.useDeprecatedNdk=true


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/gradle/wrapper/gradle-wrapper.jar:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/wysaid/NDKOpenGLOffscreenRendering/092ca356598974e6fb70ce342e812629a9cf1f06/gradle/wrapper/gradle-wrapper.jar


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/gradle/wrapper/gradle-wrapper.properties:
--------------------------------------------------------------------------------
1 | #Wed Oct 21 11:34:03 PDT 2015
2 | distributionBase=GRADLE_USER_HOME
3 | distributionPath=wrapper/dists
4 | zipStoreBase=GRADLE_USER_HOME
5 | zipStorePath=wrapper/dists
6 | distributionUrl=https\://services.gradle.org/distributions/gradle-2.8-all.zip
7 | 


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/gradlew:
--------------------------------------------------------------------------------
  1 | #!/usr/bin/env bash
  2 | 
  3 | ##############################################################################
  4 | ##
  5 | ##  Gradle start up script for UN*X
  6 | ##
  7 | ##############################################################################
  8 | 
  9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 10 | DEFAULT_JVM_OPTS=""
 11 | 
 12 | APP_NAME="Gradle"
 13 | APP_BASE_NAME=`basename "$0"`
 14 | 
 15 | # Use the maximum available, or set MAX_FD != -1 to use that value.
 16 | MAX_FD="maximum"
 17 | 
 18 | warn ( ) {
 19 |     echo "$*"
 20 | }
 21 | 
 22 | die ( ) {
 23 |     echo
 24 |     echo "$*"
 25 |     echo
 26 |     exit 1
 27 | }
 28 | 
 29 | # OS specific support (must be 'true' or 'false').
 30 | cygwin=false
 31 | msys=false
 32 | darwin=false
 33 | case "`uname`" in
 34 |   CYGWIN* )
 35 |     cygwin=true
 36 |     ;;
 37 |   Darwin* )
 38 |     darwin=true
 39 |     ;;
 40 |   MINGW* )
 41 |     msys=true
 42 |     ;;
 43 | esac
 44 | 
 45 | # Attempt to set APP_HOME
 46 | # Resolve links: $0 may be a link
 47 | PRG="$0"
 48 | # Need this for relative symlinks.
 49 | while [ -h "$PRG" ] ; do
 50 |     ls=`ls -ld "$PRG"`
 51 |     link=`expr "$ls" : '.*-> \(.*\)$'`
 52 |     if expr "$link" : '/.*' > /dev/null; then
 53 |         PRG="$link"
 54 |     else
 55 |         PRG=`dirname "$PRG"`"/$link"
 56 |     fi
 57 | done
 58 | SAVED="`pwd`"
 59 | cd "`dirname \"$PRG\"`/" >/dev/null
 60 | APP_HOME="`pwd -P`"
 61 | cd "$SAVED" >/dev/null
 62 | 
 63 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 64 | 
 65 | # Determine the Java command to use to start the JVM.
 66 | if [ -n "$JAVA_HOME" ] ; then
 67 |     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
 68 |         # IBM's JDK on AIX uses strange locations for the executables
 69 |         JAVACMD="$JAVA_HOME/jre/sh/java"
 70 |     else
 71 |         JAVACMD="$JAVA_HOME/bin/java"
 72 |     fi
 73 |     if [ ! -x "$JAVACMD" ] ; then
 74 |         die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
 75 | 
 76 | Please set the JAVA_HOME variable in your environment to match the
 77 | location of your Java installation."
 78 |     fi
 79 | else
 80 |     JAVACMD="java"
 81 |     which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 82 | 
 83 | Please set the JAVA_HOME variable in your environment to match the
 84 | location of your Java installation."
 85 | fi
 86 | 
 87 | # Increase the maximum file descriptors if we can.
 88 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
 89 |     MAX_FD_LIMIT=`ulimit -H -n`
 90 |     if [ $? -eq 0 ] ; then
 91 |         if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
 92 |             MAX_FD="$MAX_FD_LIMIT"
 93 |         fi
 94 |         ulimit -n $MAX_FD
 95 |         if [ $? -ne 0 ] ; then
 96 |             warn "Could not set maximum file descriptor limit: $MAX_FD"
 97 |         fi
 98 |     else
 99 |         warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
100 |     fi
101 | fi
102 | 
103 | # For Darwin, add options to specify how the application appears in the dock
104 | if $darwin; then
105 |     GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
106 | fi
107 | 
108 | # For Cygwin, switch paths to Windows format before running java
109 | if $cygwin ; then
110 |     APP_HOME=`cygpath --path --mixed "$APP_HOME"`
111 |     CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
112 |     JAVACMD=`cygpath --unix "$JAVACMD"`
113 | 
114 |     # We build the pattern for arguments to be converted via cygpath
115 |     ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
116 |     SEP=""
117 |     for dir in $ROOTDIRSRAW ; do
118 |         ROOTDIRS="$ROOTDIRS$SEP$dir"
119 |         SEP="|"
120 |     done
121 |     OURCYGPATTERN="(^($ROOTDIRS))"
122 |     # Add a user-defined pattern to the cygpath arguments
123 |     if [ "$GRADLE_CYGPATTERN" != "" ] ; then
124 |         OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
125 |     fi
126 |     # Now convert the arguments - kludge to limit ourselves to /bin/sh
127 |     i=0
128 |     for arg in "$@" ; do
129 |         CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
130 |         CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
131 | 
132 |         if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
133 |             eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
134 |         else
135 |             eval `echo args$i`="\"$arg\""
136 |         fi
137 |         i=$((i+1))
138 |     done
139 |     case $i in
140 |         (0) set -- ;;
141 |         (1) set -- "$args0" ;;
142 |         (2) set -- "$args0" "$args1" ;;
143 |         (3) set -- "$args0" "$args1" "$args2" ;;
144 |         (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
145 |         (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
146 |         (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
147 |         (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
148 |         (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
149 |         (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
150 |     esac
151 | fi
152 | 
153 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
154 | function splitJvmOpts() {
155 |     JVM_OPTS=("$@")
156 | }
157 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
158 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
159 | 
160 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
161 | 


--------------------------------------------------------------------------------
/gradlew.bat:
--------------------------------------------------------------------------------
 1 | @if "%DEBUG%" == "" @echo off
 2 | @rem ##########################################################################
 3 | @rem
 4 | @rem  Gradle startup script for Windows
 5 | @rem
 6 | @rem ##########################################################################
 7 | 
 8 | @rem Set local scope for the variables with windows NT shell
 9 | if "%OS%"=="Windows_NT" setlocal
10 | 
11 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
12 | set DEFAULT_JVM_OPTS=
13 | 
14 | set DIRNAME=%~dp0
15 | if "%DIRNAME%" == "" set DIRNAME=.
16 | set APP_BASE_NAME=%~n0
17 | set APP_HOME=%DIRNAME%
18 | 
19 | @rem Find java.exe
20 | if defined JAVA_HOME goto findJavaFromJavaHome
21 | 
22 | set JAVA_EXE=java.exe
23 | %JAVA_EXE% -version >NUL 2>&1
24 | if "%ERRORLEVEL%" == "0" goto init
25 | 
26 | echo.
27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
28 | echo.
29 | echo Please set the JAVA_HOME variable in your environment to match the
30 | echo location of your Java installation.
31 | 
32 | goto fail
33 | 
34 | :findJavaFromJavaHome
35 | set JAVA_HOME=%JAVA_HOME:"=%
36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe
37 | 
38 | if exist "%JAVA_EXE%" goto init
39 | 
40 | echo.
41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
42 | echo.
43 | echo Please set the JAVA_HOME variable in your environment to match the
44 | echo location of your Java installation.
45 | 
46 | goto fail
47 | 
48 | :init
49 | @rem Get command-line arguments, handling Windowz variants
50 | 
51 | if not "%OS%" == "Windows_NT" goto win9xME_args
52 | if "%@eval[2+2]" == "4" goto 4NT_args
53 | 
54 | :win9xME_args
55 | @rem Slurp the command line arguments.
56 | set CMD_LINE_ARGS=
57 | set _SKIP=2
58 | 
59 | :win9xME_args_slurp
60 | if "x%~1" == "x" goto execute
61 | 
62 | set CMD_LINE_ARGS=%*
63 | goto execute
64 | 
65 | :4NT_args
66 | @rem Get arguments from the 4NT Shell from JP Software
67 | set CMD_LINE_ARGS=%$
68 | 
69 | :execute
70 | @rem Setup the command line
71 | 
72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
73 | 
74 | @rem Execute Gradle
75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
76 | 
77 | :end
78 | @rem End local scope for the variables with windows NT shell
79 | if "%ERRORLEVEL%"=="0" goto mainEnd
80 | 
81 | :fail
82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
83 | rem the _cmd.exe /c_ return code!
84 | if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
85 | exit /b 1
86 | 
87 | :mainEnd
88 | if "%OS%"=="Windows_NT" endlocal
89 | 
90 | :omega
91 | 


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/import-summary.txt:
--------------------------------------------------------------------------------
  1 | ECLIPSE ANDROID PROJECT IMPORT SUMMARY
  2 | ======================================
  3 | 
  4 | Ignored Files:
  5 | --------------
  6 | The following files were *not* copied into the new Gradle project; you
  7 | should evaluate whether these are still needed in your project and if
  8 | so manually move them:
  9 | 
 10 | * .DS_Store
 11 | * NDKOpenGLOffscreenRendering/
 12 | * NDKOpenGLOffscreenRendering/.idea/
 13 | * NDKOpenGLOffscreenRendering/.idea/.name
 14 | * NDKOpenGLOffscreenRendering/.idea/compiler.xml
 15 | * NDKOpenGLOffscreenRendering/.idea/copyright/
 16 | * NDKOpenGLOffscreenRendering/.idea/copyright/profiles_settings.xml
 17 | * NDKOpenGLOffscreenRendering/.idea/misc.xml
 18 | * NDKOpenGLOffscreenRendering/.idea/modules.xml
 19 | * NDKOpenGLOffscreenRendering/.idea/vcs.xml
 20 | * NDKOpenGLOffscreenRendering/.idea/workspace.xml
 21 | * NDKOpenGLOffscreenRendering/app/
 22 | * NDKOpenGLOffscreenRendering/app/build.gradle
 23 | * NDKOpenGLOffscreenRendering/app/lint.xml
 24 | * NDKOpenGLOffscreenRendering/app/src/
 25 | * NDKOpenGLOffscreenRendering/app/src/main/
 26 | * NDKOpenGLOffscreenRendering/app/src/main/AndroidManifest.xml
 27 | * NDKOpenGLOffscreenRendering/app/src/main/java/
 28 | * NDKOpenGLOffscreenRendering/app/src/main/java/org/
 29 | * NDKOpenGLOffscreenRendering/app/src/main/java/org/wysaid/
 30 | * NDKOpenGLOffscreenRendering/app/src/main/java/org/wysaid/ndkopenglbackdraw/
 31 | * NDKOpenGLOffscreenRendering/app/src/main/java/org/wysaid/ndkopenglbackdraw/GLHelpFunctions.java
 32 | * NDKOpenGLOffscreenRendering/app/src/main/java/org/wysaid/ndkopenglbackdraw/MainActivity.java
 33 | * NDKOpenGLOffscreenRendering/app/src/main/jni/
 34 | * NDKOpenGLOffscreenRendering/app/src/main/jni/Android.mk
 35 | * NDKOpenGLOffscreenRendering/app/src/main/jni/Application.mk
 36 | * NDKOpenGLOffscreenRendering/app/src/main/jni/NDKOpenGLBackDraw.cpp
 37 | * NDKOpenGLOffscreenRendering/app/src/main/jni/org_wysaid_ndkopenglbackdraw_GLHelpFunctions.h
 38 | * NDKOpenGLOffscreenRendering/app/src/main/res/
 39 | * NDKOpenGLOffscreenRendering/app/src/main/res/drawable-hdpi/
 40 | * NDKOpenGLOffscreenRendering/app/src/main/res/drawable-hdpi/ic_launcher.png
 41 | * NDKOpenGLOffscreenRendering/app/src/main/res/drawable-mdpi/
 42 | * NDKOpenGLOffscreenRendering/app/src/main/res/drawable-mdpi/ic_launcher.png
 43 | * NDKOpenGLOffscreenRendering/app/src/main/res/drawable-xhdpi/
 44 | * NDKOpenGLOffscreenRendering/app/src/main/res/drawable-xhdpi/ic_launcher.png
 45 | * NDKOpenGLOffscreenRendering/app/src/main/res/drawable-xxhdpi/
 46 | * NDKOpenGLOffscreenRendering/app/src/main/res/drawable-xxhdpi/ic_launcher.png
 47 | * NDKOpenGLOffscreenRendering/app/src/main/res/layout/
 48 | * NDKOpenGLOffscreenRendering/app/src/main/res/layout/activity_main.xml
 49 | * NDKOpenGLOffscreenRendering/app/src/main/res/menu/
 50 | * NDKOpenGLOffscreenRendering/app/src/main/res/menu/main.xml
 51 | * NDKOpenGLOffscreenRendering/app/src/main/res/values-sw600dp/
 52 | * NDKOpenGLOffscreenRendering/app/src/main/res/values-sw600dp/dimens.xml
 53 | * NDKOpenGLOffscreenRendering/app/src/main/res/values-sw720dp-land/
 54 | * NDKOpenGLOffscreenRendering/app/src/main/res/values-sw720dp-land/dimens.xml
 55 | * NDKOpenGLOffscreenRendering/app/src/main/res/values-v11/
 56 | * NDKOpenGLOffscreenRendering/app/src/main/res/values-v11/styles.xml
 57 | * NDKOpenGLOffscreenRendering/app/src/main/res/values-v14/
 58 | * NDKOpenGLOffscreenRendering/app/src/main/res/values-v14/styles.xml
 59 | * NDKOpenGLOffscreenRendering/app/src/main/res/values/
 60 | * NDKOpenGLOffscreenRendering/app/src/main/res/values/dimens.xml
 61 | * NDKOpenGLOffscreenRendering/app/src/main/res/values/strings.xml
 62 | * NDKOpenGLOffscreenRendering/app/src/main/res/values/styles.xml
 63 | * NDKOpenGLOffscreenRendering/build.gradle
 64 | * NDKOpenGLOffscreenRendering/gradle/
 65 | * NDKOpenGLOffscreenRendering/gradle/wrapper/
 66 | * NDKOpenGLOffscreenRendering/gradle/wrapper/gradle-wrapper.jar
 67 | * NDKOpenGLOffscreenRendering/gradle/wrapper/gradle-wrapper.properties
 68 | * NDKOpenGLOffscreenRendering/gradlew
 69 | * NDKOpenGLOffscreenRendering/gradlew.bat
 70 | * NDKOpenGLOffscreenRendering/local.properties
 71 | * NDKOpenGLOffscreenRendering/settings.gradle
 72 | * README.MD
 73 | * ic_launcher-web.png
 74 | * javah
 75 | * proguard-project.txt
 76 | * screenshot.jpg
 77 | 
 78 | Moved Files:
 79 | ------------
 80 | Android Gradle projects use a different directory structure than ADT
 81 | Eclipse projects. Here's how the projects were restructured:
 82 | 
 83 | * AndroidManifest.xml => app/src/main/AndroidManifest.xml
 84 | * jni/ => app/src/main/jni/
 85 | * lint.xml => app/lint.xml
 86 | * res/ => app/src/main/res/
 87 | * src/ => app/src/main/java/
 88 | 
 89 | Next Steps:
 90 | -----------
 91 | You can now build the project. The Gradle project needs network
 92 | connectivity to download dependencies.
 93 | 
 94 | Bugs:
 95 | -----
 96 | If for some reason your project does not build, and you determine that
 97 | it is due to a bug or limitation of the Eclipse to Gradle importer,
 98 | please file a bug at http://b.android.com with category
 99 | Component-Tools.
100 | 
101 | (This import summary is for your information only, and can be deleted
102 | after import once you are satisfied with the results.)
103 | 


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/screenshot.jpg:
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https://raw.githubusercontent.com/wysaid/NDKOpenGLOffscreenRendering/092ca356598974e6fb70ce342e812629a9cf1f06/screenshot.jpg


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/settings.gradle:
--------------------------------------------------------------------------------
1 | include ':app'
2 | 


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