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// 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.
#ifndef TESSERACT_OPENCL_OPENCLWRAPPER_H_
#define TESSERACT_OPENCL_OPENCLWRAPPER_H_
#include <allheaders.h>
#include <cstdio>
#include "tprintf.h"
// including CL/cl.h doesn't occur until USE_OPENCL defined below
/**************************************************************************
* enable/disable use of OpenCL
**************************************************************************/
#ifdef USE_OPENCL
/* willus mod -- move pix.h inside this section */
#include "pix.h"
# ifdef __APPLE__
# include <OpenCL/cl.h>
# else
# include <CL/cl.h>
# endif
namespace tesseract {
class Image;
struct TessDeviceScore;
// device type
enum ds_device_type { DS_DEVICE_NATIVE_CPU = 0, DS_DEVICE_OPENCL_DEVICE };
struct ds_device {
ds_device_type type;
cl_device_id oclDeviceID;
char *oclDeviceName;
char *oclDriverVersion;
// a pointer to the score data, the content/format is application defined.
TessDeviceScore *score;
};
# ifndef strcasecmp
# define strcasecmp strcmp
# endif
# define MAX_KERNEL_STRING_LEN 64
# define MAX_CLFILE_NUM 50
# define MAX_CLKERNEL_NUM 200
# define MAX_KERNEL_NAME_LEN 64
# define CL_QUEUE_THREAD_HANDLE_AMD 0x403E
# define GROUPSIZE_X 16
# define GROUPSIZE_Y 16
# define GROUPSIZE_HMORX 256
# define GROUPSIZE_HMORY 1
struct KernelEnv {
cl_context mpkContext;
cl_command_queue mpkCmdQueue;
cl_program mpkProgram;
cl_kernel mpkKernel;
char mckKernelName[150];
};
struct OpenCLEnv {
cl_platform_id mpOclPlatformID;
cl_context mpOclContext;
cl_device_id mpOclDevsID;
cl_command_queue mpOclCmdQueue;
};
typedef int (*cl_kernel_function)(void **userdata, KernelEnv *kenv);
# define CHECK_OPENCL(status, name) \
if (status != CL_SUCCESS) { \
tprintf("OpenCL error code is %d at when %s .\n", status, name); \
}
struct GPUEnv {
// share vb in all modules in hb library
cl_platform_id mpPlatformID;
cl_device_type mDevType;
cl_context mpContext;
cl_device_id *mpArryDevsID;
cl_device_id mpDevID;
cl_command_queue mpCmdQueue;
cl_kernel mpArryKernels[MAX_CLFILE_NUM];
cl_program mpArryPrograms[MAX_CLFILE_NUM]; // one program object maps one
// kernel source file
char mArryKnelSrcFile[MAX_CLFILE_NUM][256], // the max len of kernel file name is 256
mArrykernelNames[MAX_CLKERNEL_NUM][MAX_KERNEL_STRING_LEN + 1];
cl_kernel_function mpArryKnelFuncs[MAX_CLKERNEL_NUM];
int mnKernelCount, mnFileCount, // only one kernel file
mnIsUserCreated; // 1: created , 0:no create and needed to create by
// opencl wrapper
int mnKhrFp64Flag;
int mnAmdFp64Flag;
};
class OpenclDevice {
public:
static GPUEnv gpuEnv;
static int isInited;
OpenclDevice();
~OpenclDevice();
static int InitEnv(); // load dll, call InitOpenclRunEnv(0)
static int InitOpenclRunEnv(int argc); // RegistOpenclKernel, double flags, compile kernels
static int InitOpenclRunEnv_DeviceSelection(
int argc); // RegistOpenclKernel, double flags, compile kernels
static int RegistOpenclKernel();
static int ReleaseOpenclRunEnv();
static int ReleaseOpenclEnv(GPUEnv *gpuInfo);
static int CompileKernelFile(GPUEnv *gpuInfo, const char *buildOption);
static int CachedOfKernerPrg(const GPUEnv *gpuEnvCached, const char *clFileName);
static int GeneratBinFromKernelSource(cl_program program, const char *clFileName);
static int WriteBinaryToFile(const char *fileName, const char *birary, size_t numBytes);
static int BinaryGenerated(const char *clFileName, FILE **fhandle);
// static int CompileKernelFile( const char *filename, GPUEnv *gpuInfo, const
// char *buildOption );
static l_uint32 *pixReadFromTiffKernel(l_uint32 *tiffdata, l_int32 w, l_int32 h, l_int32 wpl,
l_uint32 *line);
static int composeRGBPixelCl(int *tiffdata, int *line, int h, int w);
/* OpenCL implementations of Morphological operations*/
// Initialization of OCL buffers used in Morph operations
static int initMorphCLAllocations(l_int32 wpl, l_int32 h, Image pixs);
static void releaseMorphCLBuffers();
static void pixGetLinesCL(Image pixd, Image pixs, Image *pix_vline, Image *pix_hline, Image *pixClosed,
bool getpixClosed, l_int32 close_hsize, l_int32 close_vsize,
l_int32 open_hsize, l_int32 open_vsize, l_int32 line_hsize,
l_int32 line_vsize);
// int InitOpenclAttr( OpenCLEnv * env );
// int ReleaseKernel( KernelEnv * env );
static int SetKernelEnv(KernelEnv *envInfo);
// int CreateKernel( char * kernelname, KernelEnv * env );
// int RunKernel( const char *kernelName, void **userdata );
// int ConvertToString( const char *filename, char **source );
// int CheckKernelName( KernelEnv *envInfo, const char *kernelName );
// int RegisterKernelWrapper( const char *kernelName, cl_kernel_function
// function ); int RunKernelWrapper( cl_kernel_function function, const char *
// kernelName, void **usrdata ); int GetKernelEnvAndFunc( const char
// *kernelName, KernelEnv *env, cl_kernel_function *function );
static int LoadOpencl();
# ifdef WIN32
// static int OpenclInite();
static void FreeOpenclDll();
# endif
inline static int AddKernelConfig(int kCount, const char *kName);
/* for binarization */
static int HistogramRectOCL(void *imagedata, int bytes_per_pixel, int bytes_per_line, int left,
int top, int width, int height, int kHistogramSize,
int *histogramAllChannels);
static int ThresholdRectToPixOCL(unsigned char *imagedata, int bytes_per_pixel,
int bytes_per_line, int *thresholds, int *hi_values, Image *pix,
int rect_height, int rect_width, int rect_top, int rect_left);
static ds_device getDeviceSelection();
static ds_device selectedDevice;
static bool deviceIsSelected;
static bool selectedDeviceIsOpenCL();
};
}
#endif // USE_OPENCL
#endif // TESSERACT_OPENCL_OPENCLWRAPPER_H_
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