GLReadBufferUtil: Set PACK_ROW_LENGTH for ES3 as well - also set ReadBuffer to default.

1 files changed, 5 insertions, 2 deletions

diff --git a/src/jogl/classes/com/jogamp/opengl/util/GLReadBufferUtil.java b/src/jogl/classes/com/jogamp/opengl/util/GLReadBufferUtil.java
index b7d2980df..25a012bb9 100644
--- a/src/jogl/classes/com/jogamp/opengl/util/GLReadBufferUtil.java
+++ b/src/jogl/classes/com/jogamp/opengl/util/GLReadBufferUtil.java
@@ -32,6 +32,7 @@ import java.io.File;
 import java.io.IOException;
 
 import javax.media.opengl.GL;
+import javax.media.opengl.GL2ES3;
 import javax.media.opengl.GL2GL3;
 import javax.media.opengl.GLAutoDrawable;
 import javax.media.opengl.GLDrawable;
@@ -221,8 +222,10 @@ public class GLReadBufferUtil {
         boolean res = null!=readPixelBuffer && readPixelBuffer.isValid();
         if(res) {
             psm.setAlignment(gl, alignment, alignment);
-            if(gl.isGL2GL3()) {
-                gl.getGL2GL3().glPixelStorei(GL2GL3.GL_PACK_ROW_LENGTH, width);
+            if(gl.isGL2ES3()) {
+                final GL2ES3 gl2es3 = gl.getGL2ES3();
+                gl2es3.glPixelStorei(GL2ES3.GL_PACK_ROW_LENGTH, width);
+                gl2es3.glReadBuffer(gl2es3.getDefaultReadBuffer());
             }
             readPixelBuffer.clear();
             try {