Support applications changing the surface attached to the RS.

3 files changed, 31 insertions, 0 deletions

diff --git a/graphics/java/android/renderscript/RSSurfaceView.java b/graphics/java/android/renderscript/RSSurfaceView.java
index 53466cc..1bc03ac 100644
--- a/graphics/java/android/renderscript/RSSurfaceView.java
+++ b/graphics/java/android/renderscript/RSSurfaceView.java
@@ -80,6 +80,9 @@ public class RSSurfaceView extends SurfaceView implements SurfaceHolder.Callback
      */
     public void surfaceDestroyed(SurfaceHolder holder) {
         // Surface will be destroyed when we return
+        if (mRS != null) {
+            mRS.contextSetSurface(null);
+        }
         //Log.v(RenderScript.LOG_TAG, "surfaceDestroyed");
     }
 
@@ -88,6 +91,9 @@ public class RSSurfaceView extends SurfaceView implements SurfaceHolder.Callback
      * not normally called or subclassed by clients of RSSurfaceView.
      */
     public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
+        if (mRS != null) {
+            mRS.contextSetSurface(holder.getSurface());
+        }
         //Log.v(RenderScript.LOG_TAG, "surfaceChanged");
     }
 
diff --git a/graphics/java/android/renderscript/RenderScript.java b/graphics/java/android/renderscript/RenderScript.java
index 1f2ea38..f1e5af1 100644
--- a/graphics/java/android/renderscript/RenderScript.java
+++ b/graphics/java/android/renderscript/RenderScript.java
@@ -64,6 +64,7 @@ public class RenderScript {
     native void nDeviceSetConfig(int dev, int param, int value);
     native int  nContextCreate(int dev, Surface sur, int ver, boolean useDepth);
     native void nContextDestroy(int con);
+    native void nContextSetSurface(Surface sur);
 
     native void nContextBindRootScript(int script);
     native void nContextBindSampler(int sampler, int slot);
@@ -276,6 +277,11 @@ public class RenderScript {
         mMessageThread.start();
     }
 
+    public void contextSetSurface(Surface sur) {
+        mSurface = sur;
+        nContextSetSurface(mSurface);
+    }
+
     public void destroy() {
         nContextDeinitToClient();
         mMessageThread.mRun = false;
diff --git a/graphics/jni/android_renderscript_RenderScript.cpp b/graphics/jni/android_renderscript_RenderScript.cpp
index fa3baa2..f3dda41 100644
--- a/graphics/jni/android_renderscript_RenderScript.cpp
+++ b/graphics/jni/android_renderscript_RenderScript.cpp
@@ -171,6 +171,24 @@ nContextCreate(JNIEnv *_env, jobject _this, jint dev, jobject wnd, jint ver, jbo
 }
 
 static void
+nContextSetSurface(JNIEnv *_env, jobject _this, jobject wnd)
+{
+    RsContext con = (RsContext)(_env->GetIntField(_this, gContextId));
+    LOG_API("nContextSetSurface, con(%p), surface(%p)", con, (Surface *)wnd);
+
+    Surface * window = NULL;
+    if (wnd == NULL) {
+
+    } else {
+        jclass surface_class = _env->FindClass("android/view/Surface");
+        jfieldID surfaceFieldID = _env->GetFieldID(surface_class, "mSurface", "I");
+        window = (Surface*)_env->GetIntField(wnd, surfaceFieldID);
+    }
+
+    rsContextSetSurface(con, window);
+}
+
+static void
 nContextDestroy(JNIEnv *_env, jobject _this, jint con)
 {
     LOG_API("nContextDestroy, con(%p)", (RsContext)con);
@@ -1328,6 +1346,7 @@ static JNINativeMethod methods[] = {
 {"nDeviceDestroy",                 "(I)V",                                 (void*)nDeviceDestroy },
 {"nDeviceSetConfig",               "(III)V",                               (void*)nDeviceSetConfig },
 {"nContextCreate",                 "(ILandroid/view/Surface;IZ)I",         (void*)nContextCreate },
+{"nContextSetSurface",             "(Landroid/view/Surface;)V",            (void*)nContextSetSurface },
 {"nContextDestroy",                "(I)V",                                 (void*)nContextDestroy },
 {"nContextPause",                  "()V",                                  (void*)nContextPause },
 {"nContextResume",                 "()V",                                  (void*)nContextResume },