commit 9ebf4ebbb9611f2aafef7d4d22b74015a7b4c8c4
author Mathias Agopian <mathias@google.com> Tue Aug 02 17:09:34 2011 -0700
committer Android (Google) Code Review <android-gerrit@google.com> Tue Aug 02 17:09:34 2011 -0700
tree 88c65f0a610db044492bb6a6fdbf65e3f414c895
parent d0ec2401e9e31a5319e205acc785f5db19212010
parent 3ab88557947d708cc36d60ce6566509ceff944e4

Merge "fix an issue where the screen could be stale after a surface size change"

opengl/java/android/opengl/GLSurfaceView.java

diff --git a/opengl/java/android/opengl/GLSurfaceView.java b/opengl/java/android/opengl/GLSurfaceView.java
index 3f547fd..4c7f84e 100644
--- a/opengl/java/android/opengl/GLSurfaceView.java
+++ b/opengl/java/android/opengl/GLSurfaceView.java
@@ -1073,6 +1073,15 @@
             return gl;
         }
 
+        public void purgeBuffers() {
+            mEgl.eglMakeCurrent(mEglDisplay,
+                    EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_SURFACE,
+                    EGL10.EGL_NO_CONTEXT);
+            mEgl.eglMakeCurrent(mEglDisplay,
+                    mEglSurface, mEglSurface,
+                    mEglContext);
+        }
+
         /**
          * Display the current render surface.
          * @return false if the context has been lost.
@@ -1415,6 +1424,7 @@
                         if (LOG_RENDERER) {
                             Log.w("GLThread", "onSurfaceChanged(" + w + ", " + h + ")");
                         }
+                        mEglHelper.purgeBuffers();
                         mRenderer.onSurfaceChanged(gl, w, h);
                         sizeChanged = false;
                     }