ocl: fix cleanup in static builds

modules/ocl/include/opencv2/ocl/private/util.hpp

@@ -77,6 +77,8 @@ inline cl_command_queue getClCommandQueue(const Context *ctx)
     return *(cl_command_queue*)(ctx->getOpenCLCommandQueuePtr());
 }
 
+CV_EXPORTS cv::Mutex& getInitializationMutex();
+
 enum openCLMemcpyKind
 {
     clMemcpyHostToDevice = 0,

modules/ocl/src/cl_context.cpp

@@ -55,6 +55,21 @@
 namespace cv {
 namespace ocl {
 
+struct __Module
+{
+    __Module();
+    ~__Module();
+    cv::Mutex initializationMutex;
+    cv::Mutex currentContextMutex;
+};
+static __Module __module;
+
+cv::Mutex& getInitializationMutex()
+{
+    return __module.initializationMutex;
+}
+
+
 struct PlatformInfoImpl
 {
     cl_platform_id platform_id;
@@ -312,7 +327,6 @@ not_found:
     return false;
 }
 
-static cv::Mutex __initializedMutex;
 static bool __initialized = false;
 static int initializeOpenCLDevices()
 {
@@ -499,7 +513,6 @@ private:
     ContextImpl& operator=(const ContextImpl&); // disabled
 };
 
-static cv::Mutex currentContextMutex;
 static ContextImpl* currentContext = NULL;
 
 Context* Context::getContext()
@@ -508,7 +521,7 @@ Context* Context::getContext()
     {
         if (!__initialized || !__deviceSelected)
         {
-            cv::AutoLock lock(__initializedMutex);
+            cv::AutoLock lock(getInitializationMutex());
             if (!__initialized)
             {
                 if (initializeOpenCLDevices() == 0)
@@ -604,7 +617,7 @@ void ContextImpl::cleanupContext(void)
     fft_teardown();
     clBlasTeardown();
 
-    cv::AutoLock lock(currentContextMutex);
+    cv::AutoLock lock(__module.currentContextMutex);
     if (currentContext)
         delete currentContext;
     currentContext = NULL;
@@ -615,7 +628,7 @@ void ContextImpl::setContext(const DeviceInfo* deviceInfo)
     CV_Assert(deviceInfo->_id >= 0 && deviceInfo->_id < (int)global_devices.size());
 
     {
-        cv::AutoLock lock(currentContextMutex);
+        cv::AutoLock lock(__module.currentContextMutex);
         if (currentContext)
         {
             if (currentContext->deviceInfo._id == deviceInfo->_id)
@@ -640,7 +653,7 @@ void ContextImpl::setContext(const DeviceInfo* deviceInfo)
 
     ContextImpl* old = NULL;
     {
-        cv::AutoLock lock(currentContextMutex);
+        cv::AutoLock lock(__module.currentContextMutex);
         old = currentContext;
         currentContext = ctx;
     }
@@ -724,20 +737,19 @@ bool supportsFeature(FEATURE_TYPE featureType)
     return Context::getContext()->supportsFeature(featureType);
 }
 
-struct __Module
+__Module::__Module()
+{
+    /* moved to Context::getContext(): initializeOpenCLDevices(); */
+}
+
+__Module::~__Module()
 {
-    __Module() { /* moved to Context::getContext(): initializeOpenCLDevices(); */ }
-    ~__Module()
-    {
 #if defined(WIN32) && defined(CVAPI_EXPORTS)
     // nothing, see DllMain
 #else
     ContextImpl::cleanupContext();
 #endif
-    }
+}
-};
-static __Module __module;
-
 
 } // namespace ocl
 } // namespace cv

modules/ocl/src/fft.cpp

@@ -90,8 +90,7 @@ namespace cv
         protected:
             PlanCache();
             ~PlanCache();
-            friend class auto_ptr<PlanCache>;
+            static PlanCache* planCache;
-            static auto_ptr<PlanCache> planCache;
 
             bool started;
             vector<FftPlan *> planStore;
@@ -102,9 +101,9 @@ namespace cv
 
             static PlanCache* getPlanCache()
             {
-                if( NULL == planCache.get())
+                if (NULL == planCache)
-                    planCache.reset(new PlanCache());
+                    planCache = new PlanCache();
-                return planCache.get();
+                return planCache;
             }
             // return a baked plan->
             // if there is one matched plan, return it
@@ -118,7 +117,7 @@ namespace cv
         };
     }
 }
-auto_ptr<PlanCache> PlanCache::planCache;
+PlanCache* PlanCache::planCache = NULL;
 
 void cv::ocl::fft_setup()
 {
@@ -138,13 +137,13 @@ void cv::ocl::fft_teardown()
     {
         return;
     }
-    delete pCache.setupData;
     for(size_t i = 0; i < pCache.planStore.size(); i ++)
     {
         delete pCache.planStore[i];
     }
     pCache.planStore.clear();
     openCLSafeCall( clAmdFftTeardown( ) );
+    delete pCache.setupData; pCache.setupData = NULL;
     pCache.started = false;
 }
 

modules/ocl/src/gemm.cpp

@@ -76,13 +76,12 @@ void cv::ocl::clBlasTeardown()
 using namespace cv;
 
 static bool clBlasInitialized = false;
-static Mutex cs;
 
 void cv::ocl::clBlasSetup()
 {
     if(!clBlasInitialized)
     {
-        AutoLock al(cs);
+        AutoLock lock(getInitializationMutex());
         if(!clBlasInitialized)
         {
             openCLSafeCall(clAmdBlasSetup());
@@ -93,7 +92,7 @@ void cv::ocl::clBlasSetup()
 
 void cv::ocl::clBlasTeardown()
 {
-    AutoLock al(cs);
+    AutoLock lock(getInitializationMutex());
     if(clBlasInitialized)
     {
         clAmdBlasTeardown();