Android openGL ES 3 support

build.gradle

@@ -9,6 +9,13 @@ buildscript {
     }
 }
 
+allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
 apply plugin: 'base'
 apply from: file('version.gradle')
 

jme3-android-examples/build.gradle

@@ -1,8 +1,8 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 23
-    buildToolsVersion "23.0.3"
+    compileSdkVersion 28
+    buildToolsVersion "28.0.3"
 
     lintOptions {
         // Fix nifty gui referencing "java.awt" package.
@@ -13,7 +13,7 @@ android {
     defaultConfig {
         applicationId "org.jmonkeyengine.jme3androidexamples"
         minSdkVersion 15       // Android 4.0.3 ICE CREAM SANDWICH
-        targetSdkVersion 22    // Android 5.1 LOLLIPOP
+        targetSdkVersion 28    // Android 9 PIE
         versionCode 1
         versionName "1.0" // TODO: from settings.gradle
     }
@@ -25,6 +25,11 @@ android {
         }
     }
 
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
     sourceSets {
         main {
             java {
@@ -42,7 +47,7 @@ android {
 dependencies {
     compile fileTree(dir: 'libs', include: ['*.jar'])
     testCompile 'junit:junit:4.12'
-    compile 'com.android.support:appcompat-v7:23.3.0'
+    compile 'com.android.support:appcompat-v7:28.0.0'
 
     compile project(':jme3-core')
     compile project(':jme3-android')

jme3-android-examples/src/main/java/org/jmonkeyengine/jme3androidexamples/JmeFragment.java

@@ -62,15 +62,15 @@ public JmeFragment() {
     public void onCreate(Bundle savedInstanceState) {
         Bundle bundle=getArguments();
 
-        appClass = bundle.getString(SELECTED_APP_CLASS);
+        appClass = bundle.getString(MainActivity.SELECTED_APP_CLASS);
 //        Log.d(this.getClass().getSimpleName(), "AppClass: " + appClass);
-        joystickEventsEnabled = bundle.getBoolean(ENABLE_JOYSTICK_EVENTS);
+        joystickEventsEnabled = bundle.getBoolean(MainActivity.ENABLE_JOYSTICK_EVENTS);
 //        Log.d(this.getClass().getSimpleName(), "JoystickEventsEnabled: " + joystickEventsEnabled);
-        keyEventsEnabled = bundle.getBoolean(ENABLE_KEY_EVENTS);
+        keyEventsEnabled = bundle.getBoolean(MainActivity.ENABLE_KEY_EVENTS);
 //        Log.d(this.getClass().getSimpleName(), "KeyEventsEnabled: " + keyEventsEnabled);
-        mouseEventsEnabled = bundle.getBoolean(ENABLE_MOUSE_EVENTS);
+        mouseEventsEnabled = bundle.getBoolean(MainActivity.ENABLE_MOUSE_EVENTS);
 //        Log.d(this.getClass().getSimpleName(), "MouseEventsEnabled: " + mouseEventsEnabled);
-        boolean verboseLogging = bundle.getBoolean(VERBOSE_LOGGING);
+        boolean verboseLogging = bundle.getBoolean(MainActivity.VERBOSE_LOGGING);
 //        Log.d(this.getClass().getSimpleName(), "VerboseLogging: " + verboseLogging);
         if (verboseLogging) {
             // Set the default logging level (default=Level.INFO, Level.ALL=All Debug Info)

jme3-android/src/main/java/com/jme3/renderer/android/AndroidGL.java

@@ -34,14 +34,17 @@
 import android.opengl.*;
 import com.jme3.renderer.RendererException;
 import com.jme3.renderer.opengl.*;
+import com.jme3.util.BufferUtils;
 
 import java.nio.Buffer;
 import java.nio.ByteBuffer;
 import java.nio.FloatBuffer;
 import java.nio.IntBuffer;
 import java.nio.ShortBuffer;
 
-public class AndroidGL implements GL, GLExt, GLFbo {
+public class AndroidGL implements GL, GL2, GLES_30, GLExt, GLFbo {
+
+    IntBuffer tmpBuff = BufferUtils.createIntBuffer(1);
 
     public void resetStats() {
     }
@@ -361,7 +364,7 @@ public void glStencilOpSeparate(int face, int sfail, int dpfail, int dppass) {
     }
 
     public void glTexImage2D(int target, int level, int internalFormat, int width, int height, int border, int format, int type, ByteBuffer data) {
-        GLES20.glTexImage2D(target, level, format, width, height, 0, format, type, data);
+        GLES20.glTexImage2D(target, level, internalFormat, width, height, 0, format, type, data);
     }
 
     public void glTexParameterf(int target, int pname, float param) {
@@ -449,7 +452,7 @@ public void glViewport(int x, int y, int width, int height) {
     }
 
     public void glBlitFramebufferEXT(int srcX0, int srcY0, int srcX1, int srcY1, int dstX0, int dstY0, int dstX1, int dstY1, int mask, int filter) {
-        throw new UnsupportedOperationException("FBO blit not available on Android");
+        GLES30.glBlitFramebuffer(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter);
     }
 
     public void glBufferData(int target, IntBuffer data, int usage) {
@@ -461,31 +464,31 @@ public void glBufferSubData(int target, long offset, IntBuffer data) {
     }
 
     public void glDrawArraysInstancedARB(int mode, int first, int count, int primcount) {
-        throw new UnsupportedOperationException("Instancing not available on Android");
+        GLES30.glDrawArraysInstanced(mode, first, count, primcount);
     }
 
     public void glDrawBuffers(IntBuffer bufs) {
-        throw new UnsupportedOperationException("MRT not available on Android");
+        GLES30.glDrawBuffers(bufs.limit(), bufs);
     }
 
     public void glDrawElementsInstancedARB(int mode, int indices_count, int type, long indices_buffer_offset, int primcount) {
-        throw new UnsupportedOperationException("Instancing not available on Android");
+        GLES30.glDrawElementsInstanced(mode, indices_count, type, (int)indices_buffer_offset, primcount);
     }
 
     public void glGetMultisample(int pname, int index, FloatBuffer val) {
-        throw new UnsupportedOperationException("Multisample renderbuffers not available on Android");
+        GLES31.glGetMultisamplefv(pname, index, val);
     }
 
     public void glRenderbufferStorageMultisampleEXT(int target, int samples, int internalformat, int width, int height) {
-        throw new UnsupportedOperationException("Multisample renderbuffers not available on Android");
+        GLES30.glRenderbufferStorageMultisample(target, samples, internalformat, width, height);
     }
 
     public void glTexImage2DMultisample(int target, int samples, int internalformat, int width, int height, boolean fixedsamplelocations) {
-        throw new UnsupportedOperationException("Multisample textures not available on Android");
+        GLES31.glTexStorage2DMultisample(target, samples, internalformat, width, height, fixedsamplelocations);
     }
 
     public void glVertexAttribDivisorARB(int index, int divisor) {
-        throw new UnsupportedOperationException("Instancing not available on Android");
+        GLES30.glVertexAttribDivisor(index, divisor);
     }
 
     public void glBindFramebufferEXT(int param1, int param2) {
@@ -564,6 +567,49 @@ public void glBlendEquationSeparate(int colorMode, int alphaMode) {
 
     @Override
     public void glFramebufferTextureLayerEXT(int target, int attachment, int texture, int level, int layer) {
-        throw new UnsupportedOperationException("OpenGL ES 2 does not support texture arrays");
+        GLES30.glFramebufferTextureLayer(target, attachment, texture, level, layer);
+    }
+
+    public void glAlphaFunc(int func, float ref) {
+    }
+
+    public void glPointSize(float size) {
+    }
+
+    public void glPolygonMode(int face, int mode) {
+    }
+
+    // Wrapper to DrawBuffers as there's no DrawBuffer method in GLES
+    public void glDrawBuffer(int mode) {
+        tmpBuff.clear();
+        tmpBuff.put(0, mode);
+        tmpBuff.rewind();
+        glDrawBuffers(tmpBuff);
+    }
+
+    public void glReadBuffer(int mode) {
+        GLES30.glReadBuffer(mode);
     }
+
+    public void glCompressedTexImage3D(int target, int level, int internalFormat, int width, int height, int depth,
+                                           int border, ByteBuffer data) {
+        GLES30.glCompressedTexImage3D(target, level, internalFormat, width, height, depth, border, getLimitBytes(data), data);
+    }
+
+    public void glCompressedTexSubImage3D(int target, int level, int xoffset, int yoffset, int zoffset, int width,
+                                              int height, int depth, int format, ByteBuffer data) {
+        GLES30.glCompressedTexSubImage3D(target, level, xoffset, yoffset, zoffset, width, height, depth, format, getLimitBytes(data), data);
+    }
+
+    public void glTexImage3D(int target, int level, int internalFormat, int width, int height, int depth, int border,
+                                 int format, int type, ByteBuffer data) {
+        GLES30.glTexImage3D(target, level, internalFormat, width, height, depth, border, format, type, data);
+    }
+
+    public void glTexSubImage3D(int target, int level, int xoffset, int yoffset, int zoffset, int width, int height,
+                                    int depth, int format, int type, ByteBuffer data) {
+        GLES30.glTexSubImage3D(target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, data);
+    }
+
 }
+

jme3-android/src/main/java/com/jme3/system/android/AndroidConfigChooser.java

@@ -19,6 +19,7 @@ public class AndroidConfigChooser implements EGLConfigChooser {
     private static final Logger logger = Logger.getLogger(AndroidConfigChooser.class.getName());
     protected AppSettings settings;
     private final static int EGL_OPENGL_ES2_BIT = 4;
+    private final static int EGL_OPENGL_ES3_BIT = 0x40;
 
     public AndroidConfigChooser(AppSettings settings) {
         this.settings = settings;
@@ -140,12 +141,29 @@ private EGLConfig[] getConfigs(EGL10 egl, EGLDisplay display) {
 
         int[] num_config = new int[1];
         int[] configSpec = new int[]{
-            EGL10.EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
+            EGL10.EGL_RENDERABLE_TYPE, EGL_OPENGL_ES3_BIT,
             EGL10.EGL_NONE};
+        boolean gles3=true;
 
-        if (!egl.eglChooseConfig(display, configSpec, null, 0, num_config)) {
-            RendererUtil.checkEGLError(egl);
-            throw new AssertionError();
+        // Try openGL ES 3
+        try {
+            if (!egl.eglChooseConfig(display, configSpec, null, 0, num_config)) {
+                RendererUtil.checkEGLError(egl);
+                gles3=false;
+            }
+        } catch (com.jme3.renderer.RendererException re) { 
+            // it's just the device not supporting GLES3. Fallback to GLES2
+            gles3=false;
+        } 
+
+        if(!gles3)
+        {
+            // Get back to openGL ES 2
+            configSpec[1]=EGL_OPENGL_ES2_BIT;
+            if (!egl.eglChooseConfig(display, configSpec, null, 0, num_config)) {
+                RendererUtil.checkEGLError(egl);
+                throw new AssertionError();
+            }
         }
 
         int numConfigs = num_config[0];

jme3-android/src/main/java/com/jme3/system/android/OGLESContext.java

@@ -53,6 +53,7 @@
 import com.jme3.input.dummy.DummyMouseInput;
 import com.jme3.renderer.android.AndroidGL;
 import com.jme3.renderer.opengl.GL;
+import com.jme3.renderer.opengl.GLES_30;
 import com.jme3.renderer.opengl.GLDebugES;
 import com.jme3.renderer.opengl.GLExt;
 import com.jme3.renderer.opengl.GLFbo;
@@ -99,13 +100,13 @@ public Type getType() {
      * @return GLSurfaceView The newly created view
      */
     public GLSurfaceView createView(Context context) {
+        ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
+        ConfigurationInfo info = am.getDeviceConfigurationInfo();
         // NOTE: We assume all ICS devices have OpenGL ES 2.0.
         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
             // below 4.0, check OpenGL ES 2.0 support.
-            ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
-            ConfigurationInfo info = am.getDeviceConfigurationInfo();
             if (info.reqGlEsVersion < 0x20000) {
-                throw new UnsupportedOperationException("OpenGL ES 2.0 is not supported on this device");
+                throw new UnsupportedOperationException("OpenGL ES 2.0 or better is not supported on this device");
             }
         } else if (Build.VERSION.SDK_INT < 9){
             throw new UnsupportedOperationException("jME3 requires Android 2.3 or later");
@@ -126,7 +127,8 @@ public GLSurfaceView createView(Context context) {
 
         // setEGLContextClientVersion must be set before calling setRenderer
         // this means it cannot be set in AndroidConfigChooser (too late)
-        view.setEGLContextClientVersion(2);
+        // use proper openGL ES version
+        view.setEGLContextClientVersion(info.reqGlEsVersion>>16);
 
         view.setFocusableInTouchMode(true);
         view.setFocusable(true);
@@ -201,7 +203,7 @@ public void uncaughtException(Thread thread, Throwable thrown) {
             gl = new GLDebugES((GL) gl, (GLExt) gl, (GLFbo) gl);
         }
         if (settings.getBoolean("GraphicsTrace")) {
-            gl = GLTracer.createGlesTracer(gl, GL.class, GLFbo.class, GLExt.class);
+            gl = GLTracer.createGlesTracer(gl, GL.class, GLES_30.class, GLFbo.class, GLExt.class);
         }
         renderer = new GLRenderer((GL)gl, (GLExt)gl, (GLFbo)gl);
         renderer.initialize();

jme3-core/src/main/java/com/jme3/asset/DesktopAssetManager.java

@@ -41,6 +41,7 @@
 import com.jme3.scene.Spatial;
 import com.jme3.shader.Glsl100ShaderGenerator;
 import com.jme3.shader.Glsl150ShaderGenerator;
+import com.jme3.shader.Glsl300ShaderGenerator;
 import com.jme3.shader.ShaderGenerator;
 import com.jme3.system.JmeSystem;
 import com.jme3.texture.Texture;
@@ -434,7 +435,9 @@ public FilterPostProcessor loadFilter(String name){
     @Override
     public ShaderGenerator getShaderGenerator(EnumSet<Caps> caps) {
         if (shaderGenerator == null) {
-            if(caps.contains(Caps.GLSL150)){
+            if(caps.contains(Caps.OpenGLES30) && caps.contains(Caps.GLSL300)){
+                shaderGenerator = new Glsl300ShaderGenerator(this);
+            }else if(caps.contains(Caps.GLSL150)) {
                 shaderGenerator = new Glsl150ShaderGenerator(this);
             }else{
                 shaderGenerator = new Glsl100ShaderGenerator(this);

jme3-core/src/main/java/com/jme3/renderer/Caps.java

@@ -403,7 +403,45 @@ public enum Caps {
     /**
      * Supporting working with ShaderStorageBufferObjects.
      */
-    ShaderStorageBufferObject;
+    ShaderStorageBufferObject,
+
+    /**
+     * Supports OpenGL ES 3.0
+     */
+    OpenGLES30,
+
+    /**
+     * Supports GLSL 3.0
+     */
+    GLSL300,
+
+    /**
+     * Supports OpenGL ES 3.1
+     */
+    OpenGLES31,
+
+    /**
+     * Supports GLSL 3.1
+     */
+    GLSL310,
+
+    /**
+     * Supports OpenGL ES 3.2
+     */
+    OpenGLES32,
+
+    /**
+     * Supports GLSL 3.2
+     */
+    GLSL320,
+
+    /**
+     * Explicit support of depth 24 textures
+     */
+    Depth24;
+
+
+
 
     /**
      * Returns true if given the renderer capabilities, the texture