1 files changed, 98 insertions, 0 deletions
diff --git a/include/opencl/openclwrapper.hxx b/include/opencl/openclwrapper.hxx
new file mode 100644
index 0000000000..bfaa49e99b
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+++ b/include/opencl/openclwrapper.hxx
@@ -0,0 +1,98 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef INCLUDED_SC_SOURCE_CORE_OPENCL_OPENCLWRAPPER_HXX
+#define INCLUDED_SC_SOURCE_CORE_OPENCL_OPENCLWRAPPER_HXX
+
+#include <vector>
+
+#include <clew/clew.h>
+
+#include <opencl/opencldllapi.h>
+#include <rtl/ustring.hxx>
+
+#define MAX_CLFILE_NUM 50
+#define OPENCL_CMDQUEUE_SIZE 1 // number of command queues per OpenCL device.
+
+#include <cstdio>
+
+struct OpenCLPlatformInfo;
+
+namespace openclwrapper
+{
+
+struct KernelEnv
+{
+    cl_context mpkContext;
+    cl_command_queue mpkCmdQueue;
+    cl_program mpkProgram;
+};
+
+struct OPENCL_DLLPUBLIC GPUEnv
+{
+    //share vb in all modules in hb library
+    cl_platform_id mpPlatformID;
+    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;
+    bool mnKhrFp64Flag;
+    bool mnAmdFp64Flag;
+    bool mbNeedsTDRAvoidance;
+
+    static bool isOpenCLEnabled();
+};
+
+extern OPENCL_DLLPUBLIC GPUEnv gpuEnv;
+extern OPENCL_DLLPUBLIC sal_uInt64 kernelFailures;
+
+OPENCL_DLLPUBLIC bool canUseOpenCL();
+
+OPENCL_DLLPUBLIC bool generatBinFromKernelSource( cl_program program, const char * clFileName );
+OPENCL_DLLPUBLIC bool buildProgramFromBinary(const char* buildOption, GPUEnv* gpuEnv, const char* filename, int idx);
+OPENCL_DLLPUBLIC void setKernelEnv( KernelEnv *envInfo );
+OPENCL_DLLPUBLIC const std::vector<OpenCLPlatformInfo>& fillOpenCLInfo();
+
+/**
+ * Used to set or switch between OpenCL devices.
+ *
+ * @param aDeviceId the id of the opencl device of type cl_device_id, "" means use software calculation
+ * @param bAutoSelect use the algorithm to select the best OpenCL device
+ * @param rOutSelectedDeviceVersionIDString returns the selected device's version string.
+ *
+ * @return returns true if there is a valid opencl device that has been set up
+ */
+OPENCL_DLLPUBLIC bool switchOpenCLDevice(std::u16string_view aDevice, bool bAutoSelect,
+                                         bool bForceEvaluation,
+                                         OUString& rOutSelectedDeviceVersionIDString);
+
+OPENCL_DLLPUBLIC void getOpenCLDeviceInfo(size_t& rDeviceId, size_t& rPlatformId);
+
+OPENCL_DLLPUBLIC void getOpenCLDeviceName(OUString& rDeviceName, OUString& rPlatformName);
+
+/**
+ * Set the current command queue position in case of multiple command queues
+ * for a given device.
+ */
+OPENCL_DLLPUBLIC void setOpenCLCmdQueuePosition( int nPos );
+
+/**
+ * Return a textual representation of an OpenCL error code.
+ * (Currently the symbolic name sans the CL_ prefix.)
+ */
+OPENCL_DLLPUBLIC const char* errorString(cl_int nError);
+
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */