WIP

android/src/main/AndroidManifest.xml

 <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.projectseptember.RNGL">
     <uses-feature android:glEsVersion="0x00020000" android:required="true" />
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 </manifest>

android/src/main/java/com/projectseptember/RNGL/GLCanvasManager.java

 package com.projectseptember.RNGL;
 
-import android.app.ActivityManager;
-import android.content.Context;
-import android.content.pm.ConfigurationInfo;
 import android.support.annotation.Nullable;
 import android.util.Log;
 
@@ -27,37 +24,37 @@ public class GLCanvasManager extends SimpleViewManager<GLCanvas> {
     }
 
     @ReactProp(name="opaque")
-  public void setOpaque(GLCanvas view, boolean opaque) {
+    public void setOpaque (GLCanvas view, boolean opaque) {
         view.setOpaque(opaque);
     }
 
     @ReactProp(name="autoRedraw")
-  public void setAutoRedraw(GLCanvas view, boolean autoRedraw) {
+    public void setAutoRedraw (GLCanvas view, boolean autoRedraw) {
         view.setAutoRedraw(autoRedraw);
     }
 
     @ReactProp(name="eventsThrough")
-  public void setEventsThrough(GLCanvas view, boolean eventsThrough) {
+    public void setEventsThrough (GLCanvas view, boolean eventsThrough) {
         view.setEventsThrough(eventsThrough);
     }
 
     @ReactProp(name="visibleContent")
-  public void setVisibleContent(GLCanvas view, boolean visibleContent) {
+    public void setVisibleContent (GLCanvas view, boolean visibleContent) {
         view.setVisibleContent(visibleContent);
     }
 
     @ReactProp(name="captureNextFrameId")
-  public void setCaptureNextFrameId(GLCanvas view, int captureNextFrameId) {
+    public void setCaptureNextFrameId (GLCanvas view, int captureNextFrameId) {
         view.setCaptureNextFrameId(captureNextFrameId);
     }
 
     @ReactProp(name="data")
-  public void setData(GLCanvas view, @Nullable ReadableMap glData) {
-    view.setData(glData == null ? null : GLData.fromMap(glData));
+    public void setData (GLCanvas view, @Nullable ReadableMap data) {
+        view.setData(data == null ? null : GLData.fromMap(data));
     }
 
     @ReactProp(name="imagesToPreload")
-  public void setImagesToPreload(GLCanvas view, @Nullable ReadableArray imageToPreload) {
+    public void setImagesToPreload (GLCanvas view, @Nullable ReadableArray imageToPreload) {
         view.setImagesToPreload(imageToPreload);
     }
 
@@ -67,7 +64,8 @@ public class GLCanvasManager extends SimpleViewManager<GLCanvas> {
     }
 
     @Override
-  public GLCanvas createViewInstance(ThemedReactContext context) {
+    public GLCanvas createViewInstance (ThemedReactContext context) {
+        Log.i("GLCanvas", "createViewInstance...");
         return new GLCanvas(context);
     }
 }

android/src/main/java/com/projectseptember/RNGL/GLFBO.java

 package com.projectseptember.RNGL;
 
+import android.util.Log;
+
 import java.util.ArrayList;
 import java.util.List;
-import java.util.logging.Logger;
 
 import static android.opengl.GLES20.*;
 
 public class GLFBO {
-    private static final Logger logger = Logger.getLogger(GLFBO.class.getName());
-
     public final List<GLTexture> color = new ArrayList<>();
     private int handle;
     private int width = 0;
@@ -18,10 +17,11 @@ public class GLFBO {
         GLTexture texture = new GLTexture();
         texture.bind();
         texture.setShape(width, height);
-        glFramebufferTexture2D(GL_FRAMEBUFFER, attachment, GL_TEXTURE_2D, texture.handle, 0);
+        glFramebufferTexture2D(GL_FRAMEBUFFER, attachment, GL_TEXTURE_2D, texture.getHandle(), 0);
         return texture;
     }
 
+    /*
     int initRenderBuffer (int width, int height, int component, int attachment)
     {
         int[] handleArr = new int[1];
@@ -32,7 +32,9 @@ public class GLFBO {
         glFramebufferRenderbuffer(GL_FRAMEBUFFER, attachment, GL_RENDERBUFFER, handle);
         return handle;
     }
+    */
 
+    /*
     class FBOState {
 
         private int fbo;
@@ -55,9 +57,11 @@ public class GLFBO {
             glBindTexture(GL_FRAMEBUFFER, tex);
         }
     }
+    */
 
     public GLFBO() {
-        FBOState state = new FBOState();
+        Log.i("GLFBO", "new");
+        //FBOState state = new FBOState();
 
         int[] handleArr = new int[1];
         glGenFramebuffers(1, handleArr, 0);
@@ -70,12 +74,12 @@ public class GLFBO {
         for(int i=0; i<numColors; ++i) {
             color.add(initTexture(width, height, GL_COLOR_ATTACHMENT0 + i));
         }
-
-        state.restore();
+        // state.restore();
     }
 
     @Override
     protected void finalize() throws Throwable {
+        Log.i("GLFBO", "finalize");
         super.finalize();
         int[] handleArr = new int[] { handle };
         glDeleteFramebuffers(1, handleArr, 0);
@@ -87,40 +91,37 @@ public class GLFBO {
         if(status != GL_FRAMEBUFFER_COMPLETE) {
             switch (status) {
                 case GL_FRAMEBUFFER_UNSUPPORTED:
-                    logger.severe("Framebuffer unsupported");
-                    break;
+                    throw new RuntimeException("Framebuffer unsupported");
                 case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT:
-                    logger.severe("Framebuffer incomplete attachment");
-                    break;
+                    throw new RuntimeException("Framebuffer incomplete attachment");
                 case GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS:
-                    logger.severe("Framebuffer incomplete dimensions");
-                    break;
+                    throw new RuntimeException("Framebuffer incomplete dimensions");
                 case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT:
-                    logger.severe("Framebuffer incomplete missing attachment");
-                    break;
+                    throw new RuntimeException("Framebuffer incomplete missing attachment");
                 default:
-                    logger.severe("Failed to create framebuffer: " + status);
+                    throw new RuntimeException("Failed to create framebuffer: " + status);
             }
         }
     }
 
     public void bind () {
+        Log.i("GLFBO", "bind");
         glBindFramebuffer(GL_FRAMEBUFFER, handle);
         glViewport(0, 0, width, height);
     }
 
     public void setShape(int w, int h) {
+        Log.i("GLFBO", "setShape "+w+" "+h);
         if (w == width && h == height) return;
         int[] maxFBOSize = new int[1];
         glGetIntegerv(GL_MAX_RENDERBUFFER_SIZE, maxFBOSize, 0);
         if( w < 0 || w > maxFBOSize[0] || h < 0 || h > maxFBOSize[0]) {
-            logger.severe("Can't resize framebuffer. Invalid dimensions");
-            return;
+            throw new IllegalArgumentException("Can't resize framebuffer. Invalid dimensions");
         }
         width = w;
         height = h;
 
-        FBOState state = new FBOState();
+        //FBOState state = new FBOState();
 
         for (GLTexture clr: color) {
             clr.setShape(w, h);
@@ -129,6 +130,6 @@ public class GLFBO {
         glBindFramebuffer(GL_FRAMEBUFFER, handle);
         checkStatus();
 
-        state.restore();
+        //state.restore();
     }
 }

android/src/main/java/com/projectseptember/RNGL/GLImage.java

@@ -5,18 +5,13 @@ import android.database.Cursor;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.graphics.Matrix;
-import android.media.ExifInterface;
 import android.net.Uri;
 import android.os.AsyncTask;
 import android.provider.MediaStore;
 import android.support.annotation.Nullable;
 
 import com.facebook.common.util.UriUtil;
-import com.facebook.drawee.interfaces.DraweeController;
-import com.facebook.imagepipeline.request.ImageRequest;
-import com.facebook.imagepipeline.request.ImageRequestBuilder;
 
-import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.URL;
@@ -216,29 +211,25 @@ public class GLImage {
             if (bitmap == null) {
                 return null;
             }
-            bitmap = rotateImage(bitmap);
-            return bitmap;
-        }
 
+            Bitmap transformedBitmap;
+            Matrix matrix = new Matrix();
 
-        private Bitmap rotateImage(final Bitmap bitmap) {
-            if (bitmap == null) {
-                return null;
-            }
-            Bitmap rotatedBitmap = bitmap;
             try {
                 int orientation = getImageOrientation();
                 if (orientation != 0) {
-                    Matrix matrix = new Matrix();
                     matrix.postRotate(orientation);
-                    rotatedBitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(),
-                            bitmap.getHeight(), matrix, true);
-                    bitmap.recycle();
                 }
             } catch (IOException e) {
                 e.printStackTrace();
             }
-            return rotatedBitmap;
+
+            matrix.postScale(1, -1);
+
+            transformedBitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
+            bitmap.recycle();
+
+            return transformedBitmap;
         }
 
         protected abstract int getImageOrientation() throws IOException;

android/src/main/java/com/projectseptember/RNGL/GLShader.java

 package com.projectseptember.RNGL;
 
+
 import static android.opengl.GLES20.*;
 
 import java.nio.ByteBuffer;
@@ -8,12 +9,9 @@ import java.nio.FloatBuffer;
 import java.nio.IntBuffer;
 import java.util.HashMap;
 import java.util.Map;
-import java.util.logging.Logger;
 
 public class GLShader {
 
-    private static final Logger logger = Logger.getLogger(GLShader.class.getName());
-
     private final String name;
     private final String vert;
     private final String frag;
@@ -38,10 +36,15 @@ public class GLShader {
         }
     }
 
+    public void runtimeException (String msg) {
+        throw new RuntimeException("Shader '"+name+"': "+msg);
+    }
+
     public void bind () {
+        ensureCompile();
+
         if (!glIsProgram(program)) {
-            logger.severe("Shader '"+name+"': not a program!");
-            return;
+            runtimeException("not a program");
         }
         glUseProgram(program);
         glBindBuffer(GL_ARRAY_BUFFER, buffer[0]);
@@ -55,7 +58,7 @@ public class GLShader {
         glGetProgramiv(program, GL_VALIDATE_STATUS, validSuccess, 0);
         if (validSuccess[0] == GL_FALSE) {
             glGetProgramInfoLog(program);
-            logger.severe("Shader '" + name + "': Validation failed " + glGetProgramInfoLog(program));
+            runtimeException("Validation failed " + glGetProgramInfoLog(program));
         }
     }
 
@@ -86,7 +89,7 @@ public class GLShader {
                 glUniformMatrix4fv(uniformLocations.get(name), 1, false, buf);
                 break;
             default:
-                throw new Error("Unsupported case: uniform '" + name + "' type: " + type);
+                runtimeException("Unsupported case: uniform '" + name + "' type: " + type);
         }
     }
     public void setUniform (String name, IntBuffer buf, int type) {
@@ -104,7 +107,7 @@ public class GLShader {
                 glUniform4iv(uniformLocations.get(name), 1, buf);
                 break;
             default:
-                throw new Error("Unsupported case: uniform '"+name+"' type: "+type);
+                runtimeException("Unsupported case: uniform '"+name+"' type: "+type);
         }
     }
 
@@ -117,14 +120,14 @@ public class GLShader {
     }
 
 
-    private static int compileShader (String name, String code, int shaderType) {
+    private int compileShader (String code, int shaderType) {
         int shaderHandle = glCreateShader(shaderType);
         glShaderSource(shaderHandle, code);
         glCompileShader(shaderHandle);
         int compileSuccess[] = new int[1];
         glGetShaderiv(shaderHandle, GL_COMPILE_STATUS, compileSuccess, 0);
         if (compileSuccess[0] == GL_FALSE) {
-            logger.severe("Shader '"+name+"' failed to compile: "+glGetShaderInfoLog(shaderHandle));
+            runtimeException("failed to compile: " + glGetShaderInfoLog(shaderHandle));
             return -1;
         }
         return shaderHandle;
@@ -149,10 +152,10 @@ public class GLShader {
     }
 
     private void makeProgram () {
-        int vertex = compileShader(name, vert, GL_VERTEX_SHADER);
+        int vertex = compileShader(vert, GL_VERTEX_SHADER);
         if (vertex == -1) return;
 
-        int fragment = compileShader(name, frag, GL_FRAGMENT_SHADER);
+        int fragment = compileShader(frag, GL_FRAGMENT_SHADER);
         if (fragment == -1) return;
 
         program = glCreateProgram();
@@ -163,12 +166,13 @@ public class GLShader {
         int[] linkSuccess = new int[1];
         glGetProgramiv(program, GL_LINK_STATUS, linkSuccess, 0);
         if (linkSuccess[0] == GL_FALSE) {
-            logger.severe("Shader '"+name+"': Linking failed "+glGetProgramInfoLog(program));
-            return;
+            runtimeException("Linking failed "+glGetProgramInfoLog(program));
         }
 
         glUseProgram(program);
 
+        validate();
+
         computeMeta();
 
         pointerLoc = glGetAttribLocation(program, "position");

android/src/main/java/com/projectseptember/RNGL/GLTexture.java

@@ -3,16 +3,23 @@ package com.projectseptember.RNGL;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
 import android.graphics.Color;
+import android.graphics.Matrix;
 import android.opengl.GLUtils;
 import android.view.View;
 
 import static android.opengl.GLES20.*;
 
 public class GLTexture {
-    public int handle;
-    public Bitmap bitmapCurrentlyUploaded = null;
+    private int handle;
+    private Bitmap bitmapCurrentlyUploaded = null;
 
-    private void dealloc () {
+    public GLTexture () {
+        makeTexture();
+    }
+
+    @Override
+    protected void finalize() throws Throwable {
+        super.finalize();
         int[] handleArr = new int[] { handle };
         glDeleteTextures(1, handleArr, 0);
         bitmapCurrentlyUploaded = null;
@@ -66,16 +73,27 @@ public class GLTexture {
         setPixels(bitmap);
     }
 
-    public void setPixelsWithView (View view) {
-        Bitmap bitmap = Bitmap.createBitmap( view.getLayoutParams().width, view.getLayoutParams().height, Bitmap.Config.ARGB_8888);
+    public void setShape (int width, int height) {
+        bind();
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, null);
+    }
+
+    public static Bitmap captureView (View view) {
+        int w = view.getWidth();
+        int h = view.getHeight();
+        if (w <= 0 || h <= 0) return Bitmap.createBitmap(2, 2, Bitmap.Config.ARGB_8888);
+        Bitmap bitmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
         Canvas canvas = new Canvas(bitmap);
-        view.layout(view.getLeft(), view.getTop(), view.getRight(), view.getBottom());
+        view.layout(0, 0, view.getWidth(), view.getHeight());
         view.draw(canvas);
-        setPixels(bitmap);
+        Matrix matrix = new Matrix();
+        matrix.postScale(1, -1);
+        Bitmap transformedBitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
+        bitmap.recycle();
+        return transformedBitmap;
     }
 
-    public void setShape (int width, int height) {
-        bind();
-        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, null);
+    public int getHandle() {
+        return handle;
     }
 }

android/src/main/java/com/projectseptember/RNGL/RNGLContext.java

 package com.projectseptember.RNGL;
 
-import android.opengl.GLSurfaceView;
-
 import com.facebook.react.bridge.ReactApplicationContext;
 import com.facebook.react.bridge.ReactContextBaseJavaModule;
 import com.facebook.react.bridge.ReactMethod;