Add setPriority to allow wallpapers to run at lower cpu priority than default.

2 files changed, 27 insertions, 0 deletions

diff --git a/graphics/java/android/renderscript/RenderScript.java b/graphics/java/android/renderscript/RenderScript.java
index ea11882..a5bceb6 100644
--- a/graphics/java/android/renderscript/RenderScript.java
+++ b/graphics/java/android/renderscript/RenderScript.java
@@ -67,6 +67,7 @@ public class RenderScript {
     native int  nContextCreate(int dev, int ver, boolean useDepth);
     native void nContextDestroy(int con);
     native void nContextSetSurface(int w, int h, Surface sur);
+    native void nContextSetPriority(int p);
 
     native void nContextBindRootScript(int script);
     native void nContextBindSampler(int sampler, int slot);
@@ -218,6 +219,7 @@ public class RenderScript {
     Element mElement_XY_F32;
     Element mElement_XYZ_F32;
 
+
     ///////////////////////////////////////////////////////////////////////////////////
     //
 
@@ -229,6 +231,20 @@ public class RenderScript {
     }
     public RSMessage mMessageCallback = null;
 
+    public enum Priority {
+        LOW (5),     //ANDROID_PRIORITY_BACKGROUND + 5
+        NORMAL (-4);  //ANDROID_PRIORITY_DISPLAY
+
+        int mID;
+        Priority(int id) {
+            mID = id;
+        }
+    }
+
+    public void contextSetPriority(Priority p) {
+        nContextSetPriority(p.mID);
+    }
+
     private static class MessageThread extends Thread {
         RenderScript mRS;
         boolean mRun = true;
diff --git a/graphics/jni/android_renderscript_RenderScript.cpp b/graphics/jni/android_renderscript_RenderScript.cpp
index 709cb97..d311c33 100644
--- a/graphics/jni/android_renderscript_RenderScript.cpp
+++ b/graphics/jni/android_renderscript_RenderScript.cpp
@@ -158,6 +158,16 @@ nContextCreate(JNIEnv *_env, jobject _this, jint dev, jint ver, jboolean useDept
 }
 
 static void
+nContextSetPriority(JNIEnv *_env, jobject _this, jint p)
+{
+    RsContext con = (RsContext)(_env->GetIntField(_this, gContextId));
+    LOG_API("ContextSetPriority, con(%p), priority(%i)", con, p);
+    rsContextSetPriority(con, p);
+}
+
+
+
+static void
 nContextSetSurface(JNIEnv *_env, jobject _this, jint width, jint height, jobject wnd)
 {
     RsContext con = (RsContext)(_env->GetIntField(_this, gContextId));
@@ -1333,6 +1343,7 @@ static JNINativeMethod methods[] = {
 {"nDeviceDestroy",                 "(I)V",                                 (void*)nDeviceDestroy },
 {"nDeviceSetConfig",               "(III)V",                               (void*)nDeviceSetConfig },
 {"nContextCreate",                 "(IIZ)I",                               (void*)nContextCreate },
+{"nContextSetPriority",            "(I)V",                                 (void*)nContextSetPriority },
 {"nContextSetSurface",             "(IILandroid/view/Surface;)V",          (void*)nContextSetSurface },
 {"nContextDestroy",                "(I)V",                                 (void*)nContextDestroy },
 {"nContextPause",                  "()V",                                  (void*)nContextPause },