include/opencl/openclwrapper.hxx |    1 
 opencl/source/openclwrapper.cxx  |   81 +++++++++++++++------------------------
 2 files changed, 33 insertions(+), 49 deletions(-)

New commits:
commit f606a33b57c24210876bd7665b9c8d7baac57a14
Author: László Németh <laszlo.nem...@collabora.com>
Date:   Sat Oct 15 14:04:42 2016 +0200

    Revert "opencl: initialize command queue on demand"
    
    This reverts commit 6d4d3db53242e2dc588b347f313d17f9966f283e.

diff --git a/include/opencl/openclwrapper.hxx b/include/opencl/openclwrapper.hxx
index 233412f..dae1192 100644
--- a/include/opencl/openclwrapper.hxx
+++ b/include/opencl/openclwrapper.hxx
@@ -42,7 +42,6 @@ struct OPENCL_DLLPUBLIC GPUEnv
     cl_context mpContext;
     cl_device_id mpDevID;
     cl_command_queue mpCmdQueue[OPENCL_CMDQUEUE_SIZE];
-    bool mbCommandQueueInitialized;
     cl_program mpArryPrograms[MAX_CLFILE_NUM]; //one program object maps one 
kernel source file
     int mnIsUserCreated; // 1: created , 0:no create and needed to create by 
opencl wrapper
     int mnCmdQueuePos;
diff --git a/opencl/source/openclwrapper.cxx b/opencl/source/openclwrapper.cxx
index 5d40a54..d8d16c3 100644
--- a/opencl/source/openclwrapper.cxx
+++ b/opencl/source/openclwrapper.cxx
@@ -103,54 +103,8 @@ OString getCacheFolder()
 
 }
 
-bool initializeCommandQueue(GPUEnv& aGpuEnv)
-{
-    OpenCLZone zone;
-
-    cl_int nState;
-    cl_command_queue command_queue[OPENCL_CMDQUEUE_SIZE];
-
-    for (int i = 0; i < OPENCL_CMDQUEUE_SIZE; ++i)
-    {
-        command_queue[i] = clCreateCommandQueue(aGpuEnv.mpContext, 
aGpuEnv.mpDevID, 0, &nState);
-        if (nState != CL_SUCCESS)
-            SAL_WARN("opencl", "clCreateCommandQueue failed: " << 
errorString(nState));
-
-        if (command_queue[i] == nullptr || nState != CL_SUCCESS)
-        {
-            // Release all command queues created so far.
-            for (int j = 0; j <= i; ++j)
-            {
-                if (command_queue[j])
-                {
-                    clReleaseCommandQueue(command_queue[j]);
-                    command_queue[j] = nullptr;
-                }
-            }
-
-            clReleaseContext(aGpuEnv.mpContext);
-            SAL_WARN("opencl", "failed to set/switch opencl device");
-            return false;
-        }
-
-        SAL_INFO("opencl", "Created command queue " << command_queue[i] << " 
for context " << aGpuEnv.mpContext);
-    }
-
-    for (int i = 0; i < OPENCL_CMDQUEUE_SIZE; ++i)
-    {
-        aGpuEnv.mpCmdQueue[i] = command_queue[i];
-    }
-    aGpuEnv.mbCommandQueueInitialized = true;
-    return true;
-}
-
 void setKernelEnv( KernelEnv *envInfo )
 {
-    if (!gpuEnv.mbCommandQueueInitialized)
-    {
-        initializeCommandQueue(gpuEnv);
-    }
-
     envInfo->mpkContext = gpuEnv.mpContext;
     envInfo->mpkProgram = gpuEnv.mpArryPrograms[0];
 
@@ -311,7 +265,8 @@ bool initOpenCLAttr( OpenCLEnv * env )
 
     gpuEnv.mnIsUserCreated = 1;
 
-    gpuEnv.mbCommandQueueInitialized = false;
+    for (int i = 0; i < OPENCL_CMDQUEUE_SIZE; ++i)
+        gpuEnv.mpCmdQueue[i] = env->mpOclCmdQueue[i];
 
     gpuEnv.mnCmdQueuePos = 0; // default to 0.
 
@@ -810,6 +765,7 @@ bool switchOpenCLDevice(const OUString* pDevice, bool 
bAutoSelect, bool bForceEv
 
     cl_context context;
     cl_platform_id platformId;
+    cl_command_queue command_queue[OPENCL_CMDQUEUE_SIZE];
 
     {
         OpenCLZone zone;
@@ -834,6 +790,33 @@ bool switchOpenCLDevice(const OUString* pDevice, bool 
bAutoSelect, bool bForceEv
         }
         SAL_INFO("opencl", "Created context " << context << " for platform " 
<< platformId << ", device " << pDeviceId);
 
+        for (int i = 0; i < OPENCL_CMDQUEUE_SIZE; ++i)
+        {
+            command_queue[i] = clCreateCommandQueue(
+                context, pDeviceId, 0, &nState);
+            if (nState != CL_SUCCESS)
+                SAL_WARN("opencl", "clCreateCommandQueue failed: " << 
errorString(nState));
+
+            if (command_queue[i] == nullptr || nState != CL_SUCCESS)
+            {
+                // Release all command queues created so far.
+                for (int j = 0; j <= i; ++j)
+                {
+                    if (command_queue[j])
+                    {
+                        clReleaseCommandQueue(command_queue[j]);
+                        command_queue[j] = nullptr;
+                    }
+                }
+
+                clReleaseContext(context);
+                SAL_WARN("opencl", "failed to set/switch opencl device");
+                return false;
+            }
+
+            SAL_INFO("opencl", "Created command queue " << command_queue[i] << 
" for context " << context);
+        }
+
         OString sDeviceID = getDeviceInfoString(pDeviceId, CL_DEVICE_VENDOR) + 
" " + getDeviceInfoString(pDeviceId, CL_DRIVER_VERSION);
         rOutSelectedDeviceVersionIDString = OStringToOUString(sDeviceID, 
RTL_TEXTENCODING_UTF8);
     }
@@ -841,12 +824,14 @@ bool switchOpenCLDevice(const OUString* pDevice, bool 
bAutoSelect, bool bForceEv
     setOpenCLCmdQueuePosition(0); // Call this just to avoid the method being 
deleted from unused function deleter.
 
     releaseOpenCLEnv(&gpuEnv);
-
     OpenCLEnv env;
     env.mpOclPlatformID = platformId;
     env.mpOclContext = context;
     env.mpOclDevsID = pDeviceId;
 
+    for (int i = 0; i < OPENCL_CMDQUEUE_SIZE; ++i)
+        env.mpOclCmdQueue[i] = command_queue[i];
+
     initOpenCLAttr(&env);
 
     return !initOpenCLRunEnv(0);
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