4 files changed, 77 insertions, 3 deletions
diff --git a/core/jni/Android.mk b/core/jni/Android.mk
index 6b07a47..fc15b964 100644
--- a/core/jni/Android.mk
+++ b/core/jni/Android.mk
@@ -20,6 +20,10 @@ ifneq ($(ENABLE_CPUSETS),)
     LOCAL_CFLAGS += -DENABLE_CPUSETS
 endif
 
+ifneq ($(ENABLE_SCHED_BOOST),)
+    LOCAL_CFLAGS += -DENABLE_SCHED_BOOST
+endif
+
 LOCAL_CFLAGS += -DGL_GLEXT_PROTOTYPES -DEGL_EGLEXT_PROTOTYPES
 
 LOCAL_CFLAGS += -DU_USING_ICU_NAMESPACE=0
diff --git a/core/jni/android_hardware_SensorManager.cpp b/core/jni/android_hardware_SensorManager.cpp
index ec56507..7d0afdc 100644
--- a/core/jni/android_hardware_SensorManager.cpp
+++ b/core/jni/android_hardware_SensorManager.cpp
@@ -138,7 +138,7 @@ nativeCreate
 (JNIEnv *env, jclass clazz, jstring opPackageName)
 {
     ScopedUtfChars opPackageNameUtf(env, opPackageName);
-    return (jlong) new SensorManager(String16(opPackageNameUtf.c_str()));
+    return (jlong) &SensorManager::getInstanceForPackage(String16(opPackageNameUtf.c_str()));
 }
 
 static jboolean
diff --git a/core/jni/android_hardware_camera2_DngCreator.cpp b/core/jni/android_hardware_camera2_DngCreator.cpp
index ba08237..e10a644 100644
--- a/core/jni/android_hardware_camera2_DngCreator.cpp
+++ b/core/jni/android_hardware_camera2_DngCreator.cpp
@@ -20,6 +20,7 @@
 #include <string.h>
 #include <algorithm>
 #include <memory>
+#include <vector>
 
 #include <utils/Log.h>
 #include <utils/Errors.h>
@@ -1659,8 +1660,7 @@ static sp<TiffWriter> DngCreator_setup(JNIEnv* env, jobject thiz, uint32_t image
             lsmHeight = static_cast<uint32_t>(entry1.data.i32[1]);
         }
 
-        camera_metadata_entry entry2 =
-                results.find(ANDROID_STATISTICS_LENS_SHADING_MAP);
+        camera_metadata_entry entry2 = results.find(ANDROID_STATISTICS_LENS_SHADING_MAP);
 
         camera_metadata_entry entry =
                 characteristics.find(ANDROID_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE);
@@ -1685,6 +1685,45 @@ static sp<TiffWriter> DngCreator_setup(JNIEnv* env, jobject thiz, uint32_t image
             }
         }
 
+
+        // Set up bad pixel correction list
+        camera_metadata_entry entry3 = characteristics.find(ANDROID_STATISTICS_HOT_PIXEL_MAP);
+
+        if ((entry3.count % 2) != 0) {
+            ALOGE("%s: Hot pixel map contains odd number of values, cannot map to pairs!",
+                    __FUNCTION__);
+            jniThrowRuntimeException(env, "failed to add hotpixel map.");
+            return nullptr;
+        }
+
+        // Adjust the bad pixel coordinates to be relative to the origin of the active area DNG tag
+        std::vector<uint32_t> v;
+        for (size_t i = 0; i < entry3.count; i+=2) {
+            int32_t x = entry3.data.i32[i];
+            int32_t y = entry3.data.i32[i + 1];
+            x -= static_cast<int32_t>(xmin);
+            y -= static_cast<int32_t>(ymin);
+            if (x < 0 || y < 0 || static_cast<uint32_t>(x) >= width ||
+                    static_cast<uint32_t>(y) >= width) {
+                continue;
+            }
+            v.push_back(x);
+            v.push_back(y);
+        }
+        const uint32_t* badPixels = &v[0];
+        uint32_t badPixelCount = v.size();
+
+        if (badPixelCount > 0) {
+            err = builder.addBadPixelListForMetadata(badPixels, badPixelCount, opcodeCfaLayout);
+
+            if (err != OK) {
+                ALOGE("%s: Could not add hotpixel map.", __FUNCTION__);
+                jniThrowRuntimeException(env, "failed to add hotpixel map.");
+                return nullptr;
+            }
+        }
+
+
         size_t listSize = builder.getSize();
         uint8_t opcodeListBuf[listSize];
         err = builder.buildOpList(opcodeListBuf);
diff --git a/core/jni/com_android_internal_os_Zygote.cpp b/core/jni/com_android_internal_os_Zygote.cpp
index 7a725ae..4c920dc 100644
--- a/core/jni/com_android_internal_os_Zygote.cpp
+++ b/core/jni/com_android_internal_os_Zygote.cpp
@@ -408,6 +408,27 @@ void SetThreadName(const char* thread_name) {
   }
 }
 
+#ifdef ENABLE_SCHED_BOOST
+static void SetForkLoad(bool boost) {
+  // set scheduler knob to boost forked processes
+  pid_t currentPid = getpid();
+  // fits at most "/proc/XXXXXXX/sched_init_task_load\0"
+  char schedPath[35];
+  snprintf(schedPath, sizeof(schedPath), "/proc/%u/sched_init_task_load", currentPid);
+  int schedBoostFile = open(schedPath, O_WRONLY);
+  if (schedBoostFile < 0) {
+    ALOGW("Unable to set zygote scheduler boost");
+    return;
+  }
+  if (boost) {
+    write(schedBoostFile, "100\0", 4);
+  } else {
+    write(schedBoostFile, "0\0", 2);
+  }
+  close(schedBoostFile);
+}
+#endif
+
 // Utility routine to fork zygote and specialize the child process.
 static pid_t ForkAndSpecializeCommon(JNIEnv* env, uid_t uid, gid_t gid, jintArray javaGids,
                                      jint debug_flags, jobjectArray javaRlimits,
@@ -418,6 +439,10 @@ static pid_t ForkAndSpecializeCommon(JNIEnv* env, uid_t uid, gid_t gid, jintArra
                                      jstring instructionSet, jstring dataDir) {
   SetSigChldHandler();
 
+#ifdef ENABLE_SCHED_BOOST
+  SetForkLoad(true);
+#endif
+
   pid_t pid = fork();
 
   if (pid == 0) {
@@ -558,6 +583,12 @@ static pid_t ForkAndSpecializeCommon(JNIEnv* env, uid_t uid, gid_t gid, jintArra
     }
   } else if (pid > 0) {
     // the parent process
+
+#ifdef ENABLE_SCHED_BOOST
+    // unset scheduler knob
+    SetForkLoad(false);
+#endif
+
   }
   return pid;
 }