Merge "Create a separate static lib that provides a dispatch table to both fw/support/v8/renderscript/jni and libRScpp to reduce code duplication."

4 files changed, 385 insertions, 342 deletions

diff --git a/cpp/Android.mk b/cpp/Android.mk
index e461f1ea..f8ae64d0 100644
--- a/cpp/Android.mk
+++ b/cpp/Android.mk
@@ -1,3 +1,22 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+    rsDispatch.cpp
+
+LOCAL_C_INCLUDES += \
+	frameworks/rs
+
+LOCAL_CFLAGS += -Wno-unused-parameter
+
+LOCAL_MODULE:= libRSDispatch
+LOCAL_MODULE_TAGS := optional
+LOCAL_LDFLAGS += -ldl
+
+include $(BUILD_STATIC_LIBRARY)
+
+include $(CLEAR_VARS)
+
 rs_cpp_SRC_FILES := \
 	RenderScript.cpp \
 	BaseObj.cpp \
@@ -9,10 +28,7 @@ rs_cpp_SRC_FILES := \
 	ScriptIntrinsics.cpp \
 	Sampler.cpp
 
-LOCAL_PATH:= $(call my-dir)
-include $(CLEAR_VARS)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
-
 include frameworks/compile/slang/rs_version.mk
 local_cflags_for_rs_cpp += $(RS_VERSION_DEFINE)
 local_cflags_for_rs_cpp += -Wno-unused-parameter -std=c++11
@@ -31,6 +47,9 @@ LOCAL_SHARED_LIBRARIES := \
 	liblog \
 	libdl \
 
+LOCAL_STATIC_LIBRARIES := \
+        libRSDispatch
+
 LOCAL_MODULE:= libRScpp
 
 LOCAL_MODULE_TAGS := optional
@@ -62,7 +81,8 @@ LOCAL_SRC_FILES += ../rsCompatibilityLib.cpp
 
 LOCAL_WHOLE_STATIC_LIBRARIES := \
 	libutils \
-	libstlport_static
+	libstlport_static \
+	libRSDispatch
 
 LOCAL_MODULE:= libRScpp_static
 
diff --git a/cpp/RenderScript.cpp b/cpp/RenderScript.cpp
index 44747414..de22dea6 100644
--- a/cpp/RenderScript.cpp
+++ b/cpp/RenderScript.cpp
@@ -21,7 +21,6 @@
 #include "RenderScript.h"
 #include "rsCppStructs.h"
 #include "rsCppInternal.h"
-#include "rsDispatch.h"
 
 #include <dlfcn.h>
 #include <unistd.h>
@@ -79,342 +78,6 @@ bool RS::init(std::string name, uint32_t flags) {
     return RS::init(name, RS_VERSION, flags);
 }
 
-static bool loadSymbols(void* handle) {
-
-    RS::dispatch->AllocationGetType = (AllocationGetTypeFnPtr)dlsym(handle, "rsaAllocationGetType");
-    if (RS::dispatch->AllocationGetType == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->AllocationGetType");
-        return false;
-    }
-    RS::dispatch->TypeGetNativeData = (TypeGetNativeDataFnPtr)dlsym(handle, "rsaTypeGetNativeData");
-    if (RS::dispatch->TypeGetNativeData == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->TypeGetNativeData");
-        return false;
-    }
-    RS::dispatch->ElementGetNativeData = (ElementGetNativeDataFnPtr)dlsym(handle, "rsaElementGetNativeData");
-    if (RS::dispatch->ElementGetNativeData == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ElementGetNativeData");
-        return false;
-    }
-    RS::dispatch->ElementGetSubElements = (ElementGetSubElementsFnPtr)dlsym(handle, "rsaElementGetSubElements");
-    if (RS::dispatch->ElementGetSubElements == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ElementGetSubElements");
-        return false;
-    }
-    RS::dispatch->DeviceCreate = (DeviceCreateFnPtr)dlsym(handle, "rsDeviceCreate");
-    if (RS::dispatch->DeviceCreate == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->DeviceCreate");
-        return false;
-    }
-    RS::dispatch->DeviceDestroy = (DeviceDestroyFnPtr)dlsym(handle, "rsDeviceDestroy");
-    if (RS::dispatch->DeviceDestroy == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->DeviceDestroy");
-        return false;
-    }
-    RS::dispatch->DeviceSetConfig = (DeviceSetConfigFnPtr)dlsym(handle, "rsDeviceSetConfig");
-    if (RS::dispatch->DeviceSetConfig == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->DeviceSetConfig");
-        return false;
-    }
-    RS::dispatch->ContextCreate = (ContextCreateFnPtr)dlsym(handle, "rsContextCreate");;
-    if (RS::dispatch->ContextCreate == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ContextCreate");
-        return false;
-    }
-    RS::dispatch->GetName = (GetNameFnPtr)dlsym(handle, "rsaGetName");;
-    if (RS::dispatch->GetName == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->GetName");
-        return false;
-    }
-    RS::dispatch->ContextDestroy = (ContextDestroyFnPtr)dlsym(handle, "rsContextDestroy");
-    if (RS::dispatch->ContextDestroy == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ContextDestroy");
-        return false;
-    }
-    RS::dispatch->ContextGetMessage = (ContextGetMessageFnPtr)dlsym(handle, "rsContextGetMessage");
-    if (RS::dispatch->ContextGetMessage == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ContextGetMessage");
-        return false;
-    }
-    RS::dispatch->ContextPeekMessage = (ContextPeekMessageFnPtr)dlsym(handle, "rsContextPeekMessage");
-    if (RS::dispatch->ContextPeekMessage == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ContextPeekMessage");
-        return false;
-    }
-    RS::dispatch->ContextSendMessage = (ContextSendMessageFnPtr)dlsym(handle, "rsContextSendMessage");
-    if (RS::dispatch->ContextSendMessage == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ContextSendMessage");
-        return false;
-    }
-    RS::dispatch->ContextInitToClient = (ContextInitToClientFnPtr)dlsym(handle, "rsContextInitToClient");
-    if (RS::dispatch->ContextInitToClient == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ContextInitToClient");
-        return false;
-    }
-    RS::dispatch->ContextDeinitToClient = (ContextDeinitToClientFnPtr)dlsym(handle, "rsContextDeinitToClient");
-    if (RS::dispatch->ContextDeinitToClient == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ContextDeinitToClient");
-        return false;
-    }
-    RS::dispatch->TypeCreate = (TypeCreateFnPtr)dlsym(handle, "rsTypeCreate");
-    if (RS::dispatch->TypeCreate == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->TypeCreate");
-        return false;
-    }
-    RS::dispatch->AllocationCreateTyped = (AllocationCreateTypedFnPtr)dlsym(handle, "rsAllocationCreateTyped");
-    if (RS::dispatch->AllocationCreateTyped == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->AllocationCreateTyped");
-        return false;
-    }
-    RS::dispatch->AllocationCreateFromBitmap = (AllocationCreateFromBitmapFnPtr)dlsym(handle, "rsAllocationCreateFromBitmap");
-    if (RS::dispatch->AllocationCreateFromBitmap == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->AllocationCreateFromBitmap");
-        return false;
-    }
-    RS::dispatch->AllocationCubeCreateFromBitmap = (AllocationCubeCreateFromBitmapFnPtr)dlsym(handle, "rsAllocationCubeCreateFromBitmap");
-    if (RS::dispatch->AllocationCubeCreateFromBitmap == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->AllocationCubeCreateFromBitmap");
-        return false;
-    }
-    RS::dispatch->AllocationGetSurface = (AllocationGetSurfaceFnPtr)dlsym(handle, "rsAllocationGetSurface");
-    if (RS::dispatch->AllocationGetSurface == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->AllocationGetSurface");
-        return false;
-    }
-    RS::dispatch->AllocationSetSurface = (AllocationSetSurfaceFnPtr)dlsym(handle, "rsAllocationSetSurface");
-    if (RS::dispatch->AllocationSetSurface == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->AllocationSetSurface");
-        return false;
-    }
-    RS::dispatch->ContextFinish = (ContextFinishFnPtr)dlsym(handle, "rsContextFinish");
-    if (RS::dispatch->ContextFinish == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ContextFinish");
-        return false;
-    }
-    RS::dispatch->ContextDump = (ContextDumpFnPtr)dlsym(handle, "rsContextDump");
-    if (RS::dispatch->ContextDump == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ContextDump");
-        return false;
-    }
-    RS::dispatch->ContextSetPriority = (ContextSetPriorityFnPtr)dlsym(handle, "rsContextSetPriority");
-    if (RS::dispatch->ContextSetPriority == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ContextSetPriority");
-        return false;
-    }
-    RS::dispatch->AssignName = (AssignNameFnPtr)dlsym(handle, "rsAssignName");
-    if (RS::dispatch->AssignName == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->AssignName");
-        return false;
-    }
-    RS::dispatch->ObjDestroy = (ObjDestroyFnPtr)dlsym(handle, "rsObjDestroy");
-    if (RS::dispatch->ObjDestroy == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ObjDestroy");
-        return false;
-    }
-    RS::dispatch->ElementCreate = (ElementCreateFnPtr)dlsym(handle, "rsElementCreate");
-    if (RS::dispatch->ElementCreate == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ElementCreate");
-        return false;
-    }
-    RS::dispatch->ElementCreate2 = (ElementCreate2FnPtr)dlsym(handle, "rsElementCreate2");
-    if (RS::dispatch->ElementCreate2 == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ElementCreate2");
-        return false;
-    }
-    RS::dispatch->AllocationCopyToBitmap = (AllocationCopyToBitmapFnPtr)dlsym(handle, "rsAllocationCopyToBitmap");
-    if (RS::dispatch->AllocationCopyToBitmap == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->AllocationCopyToBitmap");
-        return false;
-    }
-    RS::dispatch->Allocation1DData = (Allocation1DDataFnPtr)dlsym(handle, "rsAllocation1DData");
-    if (RS::dispatch->Allocation1DData == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->Allocation1DData");
-        return false;
-    }
-    RS::dispatch->Allocation1DElementData = (Allocation1DElementDataFnPtr)dlsym(handle, "rsAllocation1DElementData");
-    if (RS::dispatch->Allocation1DElementData == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->Allocation1DElementData");
-        return false;
-    }
-    RS::dispatch->Allocation2DData = (Allocation2DDataFnPtr)dlsym(handle, "rsAllocation2DData");
-    if (RS::dispatch->Allocation2DData == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->Allocation2DData");
-        return false;
-    }
-    RS::dispatch->Allocation3DData = (Allocation3DDataFnPtr)dlsym(handle, "rsAllocation3DData");
-    if (RS::dispatch->Allocation3DData == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->Allocation3DData");
-        return false;
-    }
-    RS::dispatch->AllocationGenerateMipmaps = (AllocationGenerateMipmapsFnPtr)dlsym(handle, "rsAllocationGenerateMipmaps");
-    if (RS::dispatch->AllocationGenerateMipmaps == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->AllocationGenerateMipmaps");
-        return false;
-    }
-    RS::dispatch->AllocationRead = (AllocationReadFnPtr)dlsym(handle, "rsAllocationRead");
-    if (RS::dispatch->AllocationRead == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->AllocationRead");
-        return false;
-    }
-    RS::dispatch->Allocation1DRead = (Allocation1DReadFnPtr)dlsym(handle, "rsAllocation1DRead");
-    if (RS::dispatch->Allocation1DRead == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->Allocation1DRead");
-        return false;
-    }
-    RS::dispatch->Allocation2DRead = (Allocation2DReadFnPtr)dlsym(handle, "rsAllocation2DRead");
-    if (RS::dispatch->Allocation2DRead == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->Allocation2DRead");
-        return false;
-    }
-    RS::dispatch->AllocationSyncAll = (AllocationSyncAllFnPtr)dlsym(handle, "rsAllocationSyncAll");
-    if (RS::dispatch->AllocationSyncAll == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->AllocationSyncAll");
-        return false;
-    }
-    RS::dispatch->AllocationResize1D = (AllocationResize1DFnPtr)dlsym(handle, "rsAllocationResize1D");
-    if (RS::dispatch->AllocationResize1D == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->AllocationResize1D");
-        return false;
-    }
-    RS::dispatch->AllocationCopy2DRange = (AllocationCopy2DRangeFnPtr)dlsym(handle, "rsAllocationCopy2DRange");
-    if (RS::dispatch->AllocationCopy2DRange == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->AllocationCopy2DRange");
-        return false;
-    }
-    RS::dispatch->AllocationCopy3DRange = (AllocationCopy3DRangeFnPtr)dlsym(handle, "rsAllocationCopy3DRange");
-    if (RS::dispatch->AllocationCopy3DRange == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->AllocationCopy3DRange");
-        return false;
-    }
-    RS::dispatch->SamplerCreate = (SamplerCreateFnPtr)dlsym(handle, "rsSamplerCreate");
-    if (RS::dispatch->SamplerCreate == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->SamplerCreate");
-        return false;
-    }
-    RS::dispatch->ScriptBindAllocation = (ScriptBindAllocationFnPtr)dlsym(handle, "rsScriptBindAllocation");
-    if (RS::dispatch->ScriptBindAllocation == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ScriptBindAllocation");
-        return false;
-    }
-    RS::dispatch->ScriptSetTimeZone = (ScriptSetTimeZoneFnPtr)dlsym(handle, "rsScriptSetTimeZone");
-    if (RS::dispatch->ScriptSetTimeZone == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ScriptSetTimeZone");
-        return false;
-    }
-    RS::dispatch->ScriptInvoke = (ScriptInvokeFnPtr)dlsym(handle, "rsScriptInvoke");
-    if (RS::dispatch->ScriptInvoke == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ScriptInvoke");
-        return false;
-    }
-    RS::dispatch->ScriptInvokeV = (ScriptInvokeVFnPtr)dlsym(handle, "rsScriptInvokeV");
-    if (RS::dispatch->ScriptInvokeV == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ScriptInvokeV");
-        return false;
-    }
-    RS::dispatch->ScriptForEach = (ScriptForEachFnPtr)dlsym(handle, "rsScriptForEach");
-    if (RS::dispatch->ScriptForEach == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ScriptForEach");
-        return false;
-    }
-    RS::dispatch->ScriptSetVarI = (ScriptSetVarIFnPtr)dlsym(handle, "rsScriptSetVarI");
-    if (RS::dispatch->ScriptSetVarI == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ScriptSetVarI");
-        return false;
-    }
-    RS::dispatch->ScriptSetVarObj = (ScriptSetVarObjFnPtr)dlsym(handle, "rsScriptSetVarObj");
-    if (RS::dispatch->ScriptSetVarObj == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ScriptSetVarObj");
-        return false;
-    }
-    RS::dispatch->ScriptSetVarJ = (ScriptSetVarJFnPtr)dlsym(handle, "rsScriptSetVarJ");
-    if (RS::dispatch->ScriptSetVarJ == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ScriptSetVarJ");
-        return false;
-    }
-    RS::dispatch->ScriptSetVarF = (ScriptSetVarFFnPtr)dlsym(handle, "rsScriptSetVarF");
-    if (RS::dispatch->ScriptSetVarF == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ScriptSetVarF");
-        return false;
-    }
-    RS::dispatch->ScriptSetVarD = (ScriptSetVarDFnPtr)dlsym(handle, "rsScriptSetVarD");
-    if (RS::dispatch->ScriptSetVarD == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ScriptSetVarD");
-        return false;
-    }
-    RS::dispatch->ScriptSetVarV = (ScriptSetVarVFnPtr)dlsym(handle, "rsScriptSetVarV");
-    if (RS::dispatch->ScriptSetVarV == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ScriptSetVarV");
-        return false;
-    }
-    RS::dispatch->ScriptGetVarV = (ScriptGetVarVFnPtr)dlsym(handle, "rsScriptGetVarV");
-    if (RS::dispatch->ScriptGetVarV == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ScriptGetVarV");
-        return false;
-    }
-    RS::dispatch->ScriptSetVarVE = (ScriptSetVarVEFnPtr)dlsym(handle, "rsScriptSetVarVE");
-    if (RS::dispatch->ScriptSetVarVE == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ScriptSetVarVE");
-        return false;
-    }
-    RS::dispatch->ScriptCCreate = (ScriptCCreateFnPtr)dlsym(handle, "rsScriptCCreate");
-    if (RS::dispatch->ScriptCCreate == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ScriptCCreate");
-        return false;
-    }
-    RS::dispatch->ScriptIntrinsicCreate = (ScriptIntrinsicCreateFnPtr)dlsym(handle, "rsScriptIntrinsicCreate");
-    if (RS::dispatch->ScriptIntrinsicCreate == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ScriptIntrinsicCreate");
-        return false;
-    }
-    RS::dispatch->ScriptKernelIDCreate = (ScriptKernelIDCreateFnPtr)dlsym(handle, "rsScriptKernelIDCreate");
-    if (RS::dispatch->ScriptKernelIDCreate == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ScriptKernelIDCreate");
-        return false;
-    }
-    RS::dispatch->ScriptFieldIDCreate = (ScriptFieldIDCreateFnPtr)dlsym(handle, "rsScriptFieldIDCreate");
-    if (RS::dispatch->ScriptFieldIDCreate == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ScriptFieldIDCreate");
-        return false;
-    }
-    RS::dispatch->ScriptGroupCreate = (ScriptGroupCreateFnPtr)dlsym(handle, "rsScriptGroupCreate");
-    if (RS::dispatch->ScriptGroupCreate == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ScriptGroupCreate");
-        return false;
-    }
-    RS::dispatch->ScriptGroupSetOutput = (ScriptGroupSetOutputFnPtr)dlsym(handle, "rsScriptGroupSetOutput");
-    if (RS::dispatch->ScriptGroupSetOutput == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ScriptGroupSetOutput");
-        return false;
-    }
-    RS::dispatch->ScriptGroupSetInput = (ScriptGroupSetInputFnPtr)dlsym(handle, "rsScriptGroupSetInput");
-    if (RS::dispatch->ScriptGroupSetInput == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ScriptGroupSetInput");
-        return false;
-    }
-    RS::dispatch->ScriptGroupExecute = (ScriptGroupExecuteFnPtr)dlsym(handle, "rsScriptGroupExecute");
-    if (RS::dispatch->ScriptGroupExecute == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->ScriptGroupExecute");
-        return false;
-    }
-    RS::dispatch->AllocationIoSend = (AllocationIoSendFnPtr)dlsym(handle, "rsAllocationIoSend");
-    if (RS::dispatch->AllocationIoSend == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->AllocationIoSend");
-        return false;
-    }
-    RS::dispatch->AllocationIoReceive = (AllocationIoReceiveFnPtr)dlsym(handle, "rsAllocationIoReceive");
-    if (RS::dispatch->AllocationIoReceive == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->AllocationIoReceive");
-        return false;
-    }
-    RS::dispatch->AllocationGetPointer = (AllocationGetPointerFnPtr)dlsym(handle, "rsAllocationGetPointer");
-    if (RS::dispatch->AllocationGetPointer == nullptr) {
-        ALOGV("Couldn't initialize RS::dispatch->AllocationGetPointer");
-        //return false;
-    }
-
-    return true;
-}
-
 // this will only open API 19+ libRS
 // because that's when we changed libRS to extern "C" entry points
 static bool loadSO(const char* filename) {
@@ -424,7 +87,7 @@ static bool loadSO(const char* filename) {
         return false;
     }
 
-    if (loadSymbols(handle) == false) {
+    if (loadSymbols(handle, *RS::dispatch) == false) {
         ALOGV("%s init failed!", filename);
         return false;
     }
diff --git a/cpp/rsDispatch.cpp b/cpp/rsDispatch.cpp
new file mode 100644
index 00000000..e0116884
--- /dev/null
+++ b/cpp/rsDispatch.cpp
@@ -0,0 +1,359 @@
+/*
+ * Copyright (C) 2011-2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#define LOG_TAG "libDispatch"
+#include <android/log.h>
+
+#include "rsDispatch.h"
+#include <dlfcn.h>
+
+#define LOG_API(...)
+
+bool loadSymbols(void* handle, dispatchTable& dispatchTab) {
+
+    dispatchTab.AllocationGetType = (AllocationGetTypeFnPtr)dlsym(handle, "rsaAllocationGetType");
+    if (dispatchTab.AllocationGetType == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.AllocationGetType");
+        return false;
+    }
+    dispatchTab.TypeGetNativeData = (TypeGetNativeDataFnPtr)dlsym(handle, "rsaTypeGetNativeData");
+    if (dispatchTab.TypeGetNativeData == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.TypeGetNativeData");
+        return false;
+    }
+    dispatchTab.ElementGetNativeData = (ElementGetNativeDataFnPtr)dlsym(handle, "rsaElementGetNativeData");
+    if (dispatchTab.ElementGetNativeData == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ElementGetNativeData");
+        return false;
+    }
+    dispatchTab.ElementGetSubElements = (ElementGetSubElementsFnPtr)dlsym(handle, "rsaElementGetSubElements");
+    if (dispatchTab.ElementGetSubElements == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ElementGetSubElements");
+        return false;
+    }
+    dispatchTab.DeviceCreate = (DeviceCreateFnPtr)dlsym(handle, "rsDeviceCreate");
+    if (dispatchTab.DeviceCreate == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.DeviceCreate");
+        return false;
+    }
+    dispatchTab.DeviceDestroy = (DeviceDestroyFnPtr)dlsym(handle, "rsDeviceDestroy");
+    if (dispatchTab.DeviceDestroy == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.DeviceDestroy");
+        return false;
+    }
+    dispatchTab.DeviceSetConfig = (DeviceSetConfigFnPtr)dlsym(handle, "rsDeviceSetConfig");
+    if (dispatchTab.DeviceSetConfig == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.DeviceSetConfig");
+        return false;
+    }
+    dispatchTab.ContextCreate = (ContextCreateFnPtr)dlsym(handle, "rsContextCreate");;
+    if (dispatchTab.ContextCreate == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ContextCreate");
+        return false;
+    }
+    dispatchTab.GetName = (GetNameFnPtr)dlsym(handle, "rsaGetName");;
+    if (dispatchTab.GetName == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.GetName");
+        return false;
+    }
+    dispatchTab.ContextDestroy = (ContextDestroyFnPtr)dlsym(handle, "rsContextDestroy");
+    if (dispatchTab.ContextDestroy == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ContextDestroy");
+        return false;
+    }
+    dispatchTab.ContextGetMessage = (ContextGetMessageFnPtr)dlsym(handle, "rsContextGetMessage");
+    if (dispatchTab.ContextGetMessage == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ContextGetMessage");
+        return false;
+    }
+    dispatchTab.ContextPeekMessage = (ContextPeekMessageFnPtr)dlsym(handle, "rsContextPeekMessage");
+    if (dispatchTab.ContextPeekMessage == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ContextPeekMessage");
+        return false;
+    }
+    dispatchTab.ContextSendMessage = (ContextSendMessageFnPtr)dlsym(handle, "rsContextSendMessage");
+    if (dispatchTab.ContextSendMessage == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ContextSendMessage");
+        return false;
+    }
+    dispatchTab.ContextInitToClient = (ContextInitToClientFnPtr)dlsym(handle, "rsContextInitToClient");
+    if (dispatchTab.ContextInitToClient == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ContextInitToClient");
+        return false;
+    }
+    dispatchTab.ContextDeinitToClient = (ContextDeinitToClientFnPtr)dlsym(handle, "rsContextDeinitToClient");
+    if (dispatchTab.ContextDeinitToClient == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ContextDeinitToClient");
+        return false;
+    }
+    dispatchTab.TypeCreate = (TypeCreateFnPtr)dlsym(handle, "rsTypeCreate");
+    if (dispatchTab.TypeCreate == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.TypeCreate");
+        return false;
+    }
+    dispatchTab.AllocationCreateTyped = (AllocationCreateTypedFnPtr)dlsym(handle, "rsAllocationCreateTyped");
+    if (dispatchTab.AllocationCreateTyped == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.AllocationCreateTyped");
+        return false;
+    }
+    dispatchTab.AllocationCreateFromBitmap = (AllocationCreateFromBitmapFnPtr)dlsym(handle, "rsAllocationCreateFromBitmap");
+    if (dispatchTab.AllocationCreateFromBitmap == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.AllocationCreateFromBitmap");
+        return false;
+    }
+    dispatchTab.AllocationCubeCreateFromBitmap = (AllocationCubeCreateFromBitmapFnPtr)dlsym(handle, "rsAllocationCubeCreateFromBitmap");
+    if (dispatchTab.AllocationCubeCreateFromBitmap == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.AllocationCubeCreateFromBitmap");
+        return false;
+    }
+    dispatchTab.AllocationGetSurface = (AllocationGetSurfaceFnPtr)dlsym(handle, "rsAllocationGetSurface");
+    if (dispatchTab.AllocationGetSurface == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.AllocationGetSurface");
+        return false;
+    }
+    dispatchTab.AllocationSetSurface = (AllocationSetSurfaceFnPtr)dlsym(handle, "rsAllocationSetSurface");
+    if (dispatchTab.AllocationSetSurface == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.AllocationSetSurface");
+        return false;
+    }
+    dispatchTab.ContextFinish = (ContextFinishFnPtr)dlsym(handle, "rsContextFinish");
+    if (dispatchTab.ContextFinish == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ContextFinish");
+        return false;
+    }
+    dispatchTab.ContextDump = (ContextDumpFnPtr)dlsym(handle, "rsContextDump");
+    if (dispatchTab.ContextDump == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ContextDump");
+        return false;
+    }
+    dispatchTab.ContextSetPriority = (ContextSetPriorityFnPtr)dlsym(handle, "rsContextSetPriority");
+    if (dispatchTab.ContextSetPriority == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ContextSetPriority");
+        return false;
+    }
+    dispatchTab.AssignName = (AssignNameFnPtr)dlsym(handle, "rsAssignName");
+    if (dispatchTab.AssignName == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.AssignName");
+        return false;
+    }
+    dispatchTab.ObjDestroy = (ObjDestroyFnPtr)dlsym(handle, "rsObjDestroy");
+    if (dispatchTab.ObjDestroy == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ObjDestroy");
+        return false;
+    }
+    dispatchTab.ElementCreate = (ElementCreateFnPtr)dlsym(handle, "rsElementCreate");
+    if (dispatchTab.ElementCreate == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ElementCreate");
+        return false;
+    }
+    dispatchTab.ElementCreate2 = (ElementCreate2FnPtr)dlsym(handle, "rsElementCreate2");
+    if (dispatchTab.ElementCreate2 == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ElementCreate2");
+        return false;
+    }
+    dispatchTab.AllocationCopyToBitmap = (AllocationCopyToBitmapFnPtr)dlsym(handle, "rsAllocationCopyToBitmap");
+    if (dispatchTab.AllocationCopyToBitmap == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.AllocationCopyToBitmap");
+        return false;
+    }
+    dispatchTab.Allocation1DData = (Allocation1DDataFnPtr)dlsym(handle, "rsAllocation1DData");
+    if (dispatchTab.Allocation1DData == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.Allocation1DData");
+        return false;
+    }
+    dispatchTab.Allocation1DElementData = (Allocation1DElementDataFnPtr)dlsym(handle, "rsAllocation1DElementData");
+    if (dispatchTab.Allocation1DElementData == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.Allocation1DElementData");
+        return false;
+    }
+    dispatchTab.Allocation2DData = (Allocation2DDataFnPtr)dlsym(handle, "rsAllocation2DData");
+    if (dispatchTab.Allocation2DData == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.Allocation2DData");
+        return false;
+    }
+    dispatchTab.Allocation3DData = (Allocation3DDataFnPtr)dlsym(handle, "rsAllocation3DData");
+    if (dispatchTab.Allocation3DData == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.Allocation3DData");
+        return false;
+    }
+    dispatchTab.AllocationGenerateMipmaps = (AllocationGenerateMipmapsFnPtr)dlsym(handle, "rsAllocationGenerateMipmaps");
+    if (dispatchTab.AllocationGenerateMipmaps == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.AllocationGenerateMipmaps");
+        return false;
+    }
+    dispatchTab.AllocationRead = (AllocationReadFnPtr)dlsym(handle, "rsAllocationRead");
+    if (dispatchTab.AllocationRead == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.AllocationRead");
+        return false;
+    }
+    dispatchTab.Allocation1DRead = (Allocation1DReadFnPtr)dlsym(handle, "rsAllocation1DRead");
+    if (dispatchTab.Allocation1DRead == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.Allocation1DRead");
+        return false;
+    }
+    dispatchTab.Allocation2DRead = (Allocation2DReadFnPtr)dlsym(handle, "rsAllocation2DRead");
+    if (dispatchTab.Allocation2DRead == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.Allocation2DRead");
+        return false;
+    }
+    dispatchTab.AllocationSyncAll = (AllocationSyncAllFnPtr)dlsym(handle, "rsAllocationSyncAll");
+    if (dispatchTab.AllocationSyncAll == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.AllocationSyncAll");
+        return false;
+    }
+    dispatchTab.AllocationResize1D = (AllocationResize1DFnPtr)dlsym(handle, "rsAllocationResize1D");
+    if (dispatchTab.AllocationResize1D == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.AllocationResize1D");
+        return false;
+    }
+    dispatchTab.AllocationCopy2DRange = (AllocationCopy2DRangeFnPtr)dlsym(handle, "rsAllocationCopy2DRange");
+    if (dispatchTab.AllocationCopy2DRange == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.AllocationCopy2DRange");
+        return false;
+    }
+    dispatchTab.AllocationCopy3DRange = (AllocationCopy3DRangeFnPtr)dlsym(handle, "rsAllocationCopy3DRange");
+    if (dispatchTab.AllocationCopy3DRange == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.AllocationCopy3DRange");
+        return false;
+    }
+    dispatchTab.SamplerCreate = (SamplerCreateFnPtr)dlsym(handle, "rsSamplerCreate");
+    if (dispatchTab.SamplerCreate == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.SamplerCreate");
+        return false;
+    }
+    dispatchTab.ScriptBindAllocation = (ScriptBindAllocationFnPtr)dlsym(handle, "rsScriptBindAllocation");
+    if (dispatchTab.ScriptBindAllocation == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ScriptBindAllocation");
+        return false;
+    }
+    dispatchTab.ScriptSetTimeZone = (ScriptSetTimeZoneFnPtr)dlsym(handle, "rsScriptSetTimeZone");
+    if (dispatchTab.ScriptSetTimeZone == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ScriptSetTimeZone");
+        return false;
+    }
+    dispatchTab.ScriptInvoke = (ScriptInvokeFnPtr)dlsym(handle, "rsScriptInvoke");
+    if (dispatchTab.ScriptInvoke == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ScriptInvoke");
+        return false;
+    }
+    dispatchTab.ScriptInvokeV = (ScriptInvokeVFnPtr)dlsym(handle, "rsScriptInvokeV");
+    if (dispatchTab.ScriptInvokeV == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ScriptInvokeV");
+        return false;
+    }
+    dispatchTab.ScriptForEach = (ScriptForEachFnPtr)dlsym(handle, "rsScriptForEach");
+    if (dispatchTab.ScriptForEach == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ScriptForEach");
+        return false;
+    }
+    dispatchTab.ScriptSetVarI = (ScriptSetVarIFnPtr)dlsym(handle, "rsScriptSetVarI");
+    if (dispatchTab.ScriptSetVarI == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ScriptSetVarI");
+        return false;
+    }
+    dispatchTab.ScriptSetVarObj = (ScriptSetVarObjFnPtr)dlsym(handle, "rsScriptSetVarObj");
+    if (dispatchTab.ScriptSetVarObj == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ScriptSetVarObj");
+        return false;
+    }
+    dispatchTab.ScriptSetVarJ = (ScriptSetVarJFnPtr)dlsym(handle, "rsScriptSetVarJ");
+    if (dispatchTab.ScriptSetVarJ == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ScriptSetVarJ");
+        return false;
+    }
+    dispatchTab.ScriptSetVarF = (ScriptSetVarFFnPtr)dlsym(handle, "rsScriptSetVarF");
+    if (dispatchTab.ScriptSetVarF == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ScriptSetVarF");
+        return false;
+    }
+    dispatchTab.ScriptSetVarD = (ScriptSetVarDFnPtr)dlsym(handle, "rsScriptSetVarD");
+    if (dispatchTab.ScriptSetVarD == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ScriptSetVarD");
+        return false;
+    }
+    dispatchTab.ScriptSetVarV = (ScriptSetVarVFnPtr)dlsym(handle, "rsScriptSetVarV");
+    if (dispatchTab.ScriptSetVarV == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ScriptSetVarV");
+        return false;
+    }
+    dispatchTab.ScriptGetVarV = (ScriptGetVarVFnPtr)dlsym(handle, "rsScriptGetVarV");
+    if (dispatchTab.ScriptGetVarV == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ScriptGetVarV");
+        return false;
+    }
+    dispatchTab.ScriptSetVarVE = (ScriptSetVarVEFnPtr)dlsym(handle, "rsScriptSetVarVE");
+    if (dispatchTab.ScriptSetVarVE == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ScriptSetVarVE");
+        return false;
+    }
+    dispatchTab.ScriptCCreate = (ScriptCCreateFnPtr)dlsym(handle, "rsScriptCCreate");
+    if (dispatchTab.ScriptCCreate == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ScriptCCreate");
+        return false;
+    }
+    dispatchTab.ScriptIntrinsicCreate = (ScriptIntrinsicCreateFnPtr)dlsym(handle, "rsScriptIntrinsicCreate");
+    if (dispatchTab.ScriptIntrinsicCreate == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ScriptIntrinsicCreate");
+        return false;
+    }
+    dispatchTab.ScriptKernelIDCreate = (ScriptKernelIDCreateFnPtr)dlsym(handle, "rsScriptKernelIDCreate");
+    if (dispatchTab.ScriptKernelIDCreate == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ScriptKernelIDCreate");
+        return false;
+    }
+    dispatchTab.ScriptFieldIDCreate = (ScriptFieldIDCreateFnPtr)dlsym(handle, "rsScriptFieldIDCreate");
+    if (dispatchTab.ScriptFieldIDCreate == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ScriptFieldIDCreate");
+        return false;
+    }
+    dispatchTab.ScriptGroupCreate = (ScriptGroupCreateFnPtr)dlsym(handle, "rsScriptGroupCreate");
+    if (dispatchTab.ScriptGroupCreate == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ScriptGroupCreate");
+        return false;
+    }
+    dispatchTab.ScriptGroupSetOutput = (ScriptGroupSetOutputFnPtr)dlsym(handle, "rsScriptGroupSetOutput");
+    if (dispatchTab.ScriptGroupSetOutput == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ScriptGroupSetOutput");
+        return false;
+    }
+    dispatchTab.ScriptGroupSetInput = (ScriptGroupSetInputFnPtr)dlsym(handle, "rsScriptGroupSetInput");
+    if (dispatchTab.ScriptGroupSetInput == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ScriptGroupSetInput");
+        return false;
+    }
+    dispatchTab.ScriptGroupExecute = (ScriptGroupExecuteFnPtr)dlsym(handle, "rsScriptGroupExecute");
+    if (dispatchTab.ScriptGroupExecute == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.ScriptGroupExecute");
+        return false;
+    }
+    dispatchTab.AllocationIoSend = (AllocationIoSendFnPtr)dlsym(handle, "rsAllocationIoSend");
+    if (dispatchTab.AllocationIoSend == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.AllocationIoSend");
+        return false;
+    }
+    dispatchTab.AllocationIoReceive = (AllocationIoReceiveFnPtr)dlsym(handle, "rsAllocationIoReceive");
+    if (dispatchTab.AllocationIoReceive == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.AllocationIoReceive");
+        return false;
+    }
+    dispatchTab.AllocationGetPointer = (AllocationGetPointerFnPtr)dlsym(handle, "rsAllocationGetPointer");
+    if (dispatchTab.AllocationGetPointer == NULL) {
+        LOG_API("Couldn't initialize dispatchTab.AllocationGetPointer");
+        return false;
+    }
+
+    return true;
+}
+
diff --git a/cpp/rsDispatch.h b/cpp/rsDispatch.h
index 394a6b15..659591b0 100644
--- a/cpp/rsDispatch.h
+++ b/cpp/rsDispatch.h
@@ -160,4 +160,5 @@ struct dispatchTable {
     AllocationGetPointerFnPtr AllocationGetPointer;
 };
 
+bool loadSymbols(void* handle, dispatchTable& dispatchTab);
 #endif